Update kotlin.version to v2 (major) #17

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renovate commented 2026-04-13 00:11:38 +02:00

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This PR contains the following updates:

Package	Type	Update	Change
org.jetbrains.kotlin:kotlin-maven-noarg (source)	build	major	1.9.25 → 2.3.20
org.jetbrains.kotlin:kotlin-maven-allopen (source)	build	major	1.9.25 → 2.3.20

---

Release Notes

JetBrains/kotlin (org.jetbrains.kotlin:kotlin-maven-noarg)

v2.3.20

Compare Source

Analysis API. FIR

New Features

• KT-78090 Implement stubs support for new conditional returns and holdsIn contracts

Fixes

• KT-82948 'FirRegularClass' expected as a containing declaration, got 'FirTypeAliasImpl'
• KT-83467 Package-level JSpecify annotations are ignored when coming from jars or libraries
• KT-82057 K2. Cannot infer type parameter 'R' in Ktor routing post() function with explicit response type
• KT-82846 AA: unresolved KtExpression.expressionType for the reference to the parameter with default value
• KT-80485 False positive UNRESOLVED_REFERENCE on nested interface from super-super class in the super type position inside an anonymous object
• KT-82772 Flaky false positive deprecation warning on PersistentMap.put in Kotlin repo in IDE mode
• KT-76487 StdLibSourcesLazyDeclarationResolveTestGenerated.testWrappedInt is unstable
• KT-82618 Various tests are failing with NPE in kt-master after updating the compiler on 19.11.25
• KT-82076 Error querying members of JavaClass created for SymbolLightClassForAnnotationClass during library analysis
• KT-71596 Include Js/Wasi checkers in AbstractLLFirDiagnosticsCollector
• KT-82085 No OUTER_CLASS_ARGUMENTS_REQUIRED on type parameter bound in IDE
• KT-81873 Provide a way of including traces in phase JFR events
• KT-71929 Consider leaving the non-post-compute version at EnhancementSymbolsCache.enhancedFunctions

Analysis API. Infrastructure

• KT-83173 Analysis API Tests: Library names with RC versions aren't sanitised
• KT-65140 LL FIR: Implement AbstractFirPsiJsDiagnosticTest for LL FIR
• KT-82212 [Analysis API, LL FIR] Implement AbstractDiagnosticsFirWasmTest and AbstractDiagnosticsFirWasmWasiTest for LL FIR

Analysis API. Light Classes

• KT-82227 Value classes should expose regular static methods

Analysis API. PSI

• KT-81710 'KtTypeReference.getTypeText' does not account for 'suspend' modifier on suspend lambdas
• KT-82258 Prepare PSI for migration from context receivers to context parameters
• KT-81074 KDoc: List rendering is broken

Analysis API. Providers and Caches

• KT-82449 K2 IDE Analysis Freezes During Gradle Sync (Recursive Module Dependency Computation in KotlinModuleDependentsProviderBase.computeTransitiveDependents)
• KT-82629 'collectDiagnostics' returns stale syntax error after editor fix
• KT-74907 Analysis API: Apply platform-based library module content restrictions consistently

Analysis API. Standalone

• KT-81107 AA: KtSourceModuleBuilder.sourceRoots doesn't works with symbolic links

Analysis API. Stubs and Decompilation

• KT-82792 Stub for KtValueArgumentList inside KtAnnotationEntry should be present if it is present in psi
• KT-82527 TypeClsStubBuilder.createFunctionTypeStub throws NullPointerException
• KT-82558 Deserialized DNN type should have a fully qualified Any
• KT-81928 KaArrayAnnotationValueImpl.values missing first element
• KT-82139 Support contracts for property accessors
• KT-82198 Support context parameters in contracts

Analysis API. Surface

New Features

• KT-82851 Property accessors should inherit KDoc from the parent property
• KT-63339 Analysis API: Provide a way to extract KDoc for symbols
• KT-79070 KaTypeProvider: add API to build a default type with star projections
• KT-66566 AA: api to create functional types
• KT-66043 KtTypeCreator doesn't provide a way for creating annotated types

Performance Improvements

• KT-83694 Provide psi-based implementation of KaDeclarationSymbol#isExternal
• KT-70868 KaSymbol: support PSI-only visibility and modality for the case without compiler plugins
• KT-81627 KaFirSymbolDeclarationOverridesProvider#processOverrides should process only relevant declarations

Fixes

• KT-83152 [Analysis API, KDoc] Make class name links on constructors point to the class
• KT-83695 Deprecate KaSymbolInformationProvider#{getter, setter}DeprecationStatus
• KT-82853 Add a convenience property for testing declarations for effective external-ness
• KT-83226 Support "Collection literals" in the Analysis API
• KT-83225 Support "@IntroduceAt" in the Analysis API
• KT-83222 Support "Improve use-site defaulting for annotations" in the Analysis API
• KT-83351 Rename KaSession context parameter from 's' in bridges to something nicer
• KT-83199 Clarify API around extension points
• KT-83074 Inner enum entry class has incorrect default visibility
• KT-82442 Add Ka prefix to org.jetbrains.kotlin.analysis.api.symbols.AdditionalKDocResolutionProvider
• KT-82443 Add Ka prefix to org.jetbrains.kotlin.analysis.api.symbols.DebugSymbolRenderer
• KT-82441 Add Ka prefix to org.jetbrains.kotlin.analysis.api.compile.CodeFragmentCapturedValue
• KT-82439 Add Ka prefix to org.jetbrains.kotlin.analysis.api.components.DebuggerExtension
• KT-82438 Add Ka prefix to org.jetbrains.kotlin.analysis.api.components.DefaultTypeClassIds
• KT-68577 asPsiType and mapTypeToJvmType: leading delimiter for class in a root package
• KT-81734 MIssing "ARGUMENT_TYPE_MISMATCH" caused by self-referential generic type
• KT-82856 Redesign KotlinReferenceProviderContributor to make it extensible
• KT-82615 Clarify KtReference#resolvesByNames contract
• KT-82534 No expected type for property accessor without body
• KT-82406 Add a test to ensure that all top-level classes in the Analysis API Surface have Ka prefix
• KT-78397 investigate if there is a need in Extra support for the "various little features in contracts"
• KT-74009 Analysis API: Expose "isOverloadable" check for callable symbols similar to "OverloadChecker.isOverloadable"
• KT-78399 Check return value - check how we see from Java(+Stub) we see “annotated” signatures
• KT-80357 [Analysis API] KaType.enhancedType doesn't enhance type parameters
• KT-73659 Analysis API: The name of KaType.enhancedType is too general
• KT-80545 [Analysis API] Deprecate KaFunctionType.arity
• KT-77708 K2 Mode: Potentially redundant smart cast highlighing when passing smartcasted expressions as arguments
• KT-81264 K2 AA: KaValueParameterSymbol.hasDefaultValue is false for overriding or actual functions
• KT-81166 Forbid the usage of KaSessionComponent implementation types directly
• KT-74801 Analysis API: Publish/subscribe to modification events with a single message bus topic

Backend. Native. Debug

• KT-81741 Native: stepping into data class hashCode in lldb goes to line 1

Backend. Wasm

New Features

• KT-81485 [Wasm] DebuggerCustomFormatters generation support for single module mode
• KT-81483 [Wasm] Typescript generation support for single module mode
• KT-81484 [Wasm] Dwarf generation support for single module mode

Performance Improvements

• KT-83839 K/Wasm: CMP. Load time on Safari significantly increased with Kotlin = 2.3.20-Beta1
• KT-81524 Unnecessary Any-JsAny conversions are generated for external instanceofs

Fixes

• KT-82732 K/Wasm runtime crash when using fun reference: convertKotlinClosureToJsClosure
• KT-82649 K/Wasm: Rewrite StringBuilder to use JsString
• KT-73240 K/Wasm: consider using JS String Builtins proposal in String implementation for wasm-js target
• KT-83995 K/Wasm: 2.3.0 -> 2.3.20-Beta1 degradation in arrow tests
• KT-82309 K/Wasm: refactor _initialize function
• KT-70075 Wasm: "OutOfMemoryError: GC overhead limit exceeded" during tests
• KT-83046 K/Wasm: don't use StringBuilder implicitly for string concatenations
• KT-82645 K/Wasm: wasmJs use js "String" for number2String conversion
• KT-79937 K/Wasm: support kotlin.js.nativeInvoke annotation
• KT-67461 Use new lowering phase creation API in Wasm backend
• KT-83664 Wasm: Colon and space are not sanitized in output file names
• KT-65779 JsExport declaration name clash
• KT-82202 [Wasm] SourceMap generation support for single module mode
• KT-82162 [Wasm] Run single module tests with standalone vm's
• KT-81325 [Wasm] Remove string pool initialiser dependent code
• KT-73238 K/Wasm: stop using linear memory inside our code
• KT-83025 Wasm: Compose application is not loading
• KT-73239 K/Wasm: use JS String Builtins proposal to transfer strings to and from JS
• KT-83194 K/Wasm: create WasmIR test infrastructure
• KT-65234 K/Wasm Ensure that fp operations are aligned with other b-ends
• KT-81856 K/JS/Wasm interop: external instanceofs do not link in singleModule mode
• KT-81610 [Wasm] Add CLI test for performance metrics for klibs->binary scenario
• KT-81550 Incorrect generation of .wat files
• KT-71533 K/Wasm + K2: no error on KClass::qualifiedName usages

Compiler

New Features

• KT-75736 Enable reading/writing annotations in metadata on JVM by default
• KT-79330 Implement the first version of inference for Collection Literals
• KT-83401 Collection literals: support different types of expected types for CL
• KT-55548 JSR-305: Overload resolution ambiguity: Platform Types vs Kotlin Types
• KT-74860 Support Unit coercion (incl. fun refs) in unused return value checker
• KT-13968 Support vertx nullable annotation
• KT-79656 Use org.jetbrains.annotations.UnmodifiableView and/or org.jetbrains.annotations.Unmodifiable to infer read-only types for Java entities
• KT-81684 Implement explicit passing of context arguments using named syntax [TEST_ONLY]
• KT-80492 Checkers for operator of
• KT-82638 Collection literals: resolve to factory functions for standard library classes
• KT-82467 Improve binary and JVM compatibility by generating bridges for abstract interface methods
• KT-82655 Bridges generated for non-fake overrides shall include annotations from target methods
• KT-74223 Move Kotlin/Native TestProcessor phase to the first phase
• KT-27090 Support contracts in getter and setter for top-level extension properties
• KT-74809 Support unnamed local variables
• KT-45683 Allow generics in contract type assertions

Performance Improvements

• KT-81974 Do not eagerly initialize reflection for KProperty objects for delegated properties
• KT-83697 Native: increased bitcode produced with enabled safe casts
• KT-83036 Native: too many casts emitted with -Xgeneric-safe-casts=true
• KT-80061 Compiler (or IDEA) hangs due to importing large Kotlin reflect functions (e.g. KFunction999999999)
• KT-68592 Investigate performance implications of enabling -Xjvm-default for ir.tree module
• KT-73687 Inefficient KtCommonFile#getFileAnnotationList
• KT-71673 Consider making EnhancementSymbolsCache. enhancedFunctions using simple cache

Fixes

• KT-84773 Annotations not persisted in IR for internal external functions
• KT-78783 K2: absence of warning for KTLC-284 migration
• KT-81553 INITIALIZER_TYPE_MISMATCH and ASSIGNMENT_TYPE_MISMATCH is reported on the entire initializer
• KT-83395 Kotlin/Native 2.3.0 iOS release framework fails with Invalid LLVM module (PHI node type mismatch)
• KT-84620 Incorrect optimization of property delegation
• KT-81567 Add a use-site warning if a @DslMarker-marked annotation is used on entities where it is a no-op
• KT-81700 flaky overload resolution behaviors (false-positive errors, different final candidates, compile-time failures)
• KT-83372 compileDebugKotlinAndroid hangs in 2.3.0 with SQLDelight
• KT-82579 Update specificity rule for context parameters
• KT-83590 Some explicit backing fields must still be considered private-to-this
• KT-83849 False-positive NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS for Optional.orElse(null) call
• KT-84192 "Member overrides different '@Throws' filter from" caused by overriding in different module
• KT-72994 K2: Remove resolution to context receivers
• KT-80247 No diagnostic on unresolved type annotation from a dependency in an inferred type
• KT-78730 Move more LLVM-agnostic code to compiler/ir/backend.native or compiler/ir/backend.common
• KT-74051 Add a Continuation for tail-call suspend functions
• KT-83984 Data races around kotlinx.serialization plugin protobuf extensions registration
• KT-83317 ClassCastException: with cast kotlin.UInt to java.lang.Number when defining constant
• KT-83031 K2: unstable resolution of EnhancedNullability from type-use NotNull in presence of unused code
• KT-83824 Delegated property in Gradle DSL fails to compile
• KT-83657 [K/N] Pre-codegen inline produces invalid bitcode
• KT-81555 Kotlin scripts: top-level name-based destructuring with _ = prop fails with “exception while generating code”
• KT-83314 JSpecify @NullMarked changes Java equals(Object) to equals(Any?) causing override conflict in Kotlin 2.3
• KT-83282 JvmExposeBoxed: Duplicate annotation interface kotlin.coroutines.jvm.internal.DebugMetadata in class %class%$1 for suspend inline class value
• KT-78443 Refactor session component initialization for multi-target compilation
• KT-83427 Arguments of plugin-generated annotations are serialized incorrectly
• KT-83538 OPERATOR_RENAMED_ON_IMPORT is not reported for 'provideDelegate' operator
• KT-83537 OPERATOR_RENAMED_ON_IMPORT is not reported for 'of' operator
• KT-82721 Inconsistent explicit backing fields behavior
• KT-83589 Explicit backing fields don't likely work with intersection overrides
• KT-81951 K2: Another false positive "Assigned value is never read" in composable function
• KT-83588 Explicit backing field is falsely accessible from a subclass via a substitution override
• KT-82849 Collection literals (minor): collection literal should only be resolved to operator
• KT-83363 VerifyError: "Bad type on operand stack" on multi-line suspending call with default parameter value since API version 2.4
• KT-83570 K2: Resolve problematic IR when referencing Kotlin const from annotation in Java
• KT-83362 Starting from 2.3 DefaultImpls bridge functions deprecated with the level HIDDEN are no longer synthetic
• KT-9182 Java interoperability: Overload resolution ambiguity on Java's @NotNull and primitives
• KT-83633 Forbid inline functional context parameters in inline functions
• KT-83449 compile-time IR failure on smart cast information leaking from capturing closure
• KT-82375 Add ATOMIC_REF_WITHOUT_CONSISTENT_IDENTITY warning for any argument without consistent identity
• KT-82524 Access to a companion that requires opt-in is possible without opt-in
• KT-83367 VolatileFieldsLowering may emit wrong parameter types for atomic intrinsic calls
• KT-83382 K2: Unreachable method exit breaks MUST_BE_INITIALIZED checks for succeeding value declarations
• KT-82211 False positive SENSELESS_NULL_IN_WHEN with nullable var
• KT-83157 ExplicitBackingFields: "Property with explicit backing field should be final" in 2.3.0
• KT-83269 K2: Wrong types in IR for explicit backing fields
• KT-68606 Argument type mismatch, despite being from the same star-projected type
• KT-83324 Native: problem with loops handling in types computation pass
• KT-83241 K2: "NoSuchElementException: List is empty" with top-level destructuring declaration and lambda initializer
• KT-82277 Misleading Inapplicable candidate(s): fun <K> WHEN_CALL(vararg branches: K): K when a when expression branch contains an unresolved reference
• KT-80839 Get rid of an obsolete -Xcompile-builtins-as-part-of-stdlib flag once previous changes are bootstrapped
• KT-82900 Language Feature EnhancedBridgesGeneration
• KT-82651 Do not generate self-recursive bridges in JVM backend
• KT-5486 Better errors for integers with leading zero
• KT-83185 Kotlin repeatable annotations are incorrectly deserialized from bytecode
• KT-82863 @NoInfer regression since 2.2.20
• KT-82376 Header mode: Index out of bounds when generating bodies of data class
• KT-82311 Header mode: Error expression when assigning function declaration to a property
• KT-82408 Header mode: Java files are not compiled successfully
• KT-82378 Header mode: Sequence contains no element matching the predicate
• KT-82407 Header mode: Backend Internal error: Exception during IR lowering
• KT-81763 Incorrect comparison result when using elvis ?: with nullable Long values
• KT-83153 Properly ignore contract statements in the Return Value Checker
• KT-83076 Don't report WRONG_JS_INTEROP_TYPE on expect types during metadata compilation
• KT-78589 "Class does not have member field" caused by delegation from a Java to Kotlin class
• KT-82640 K2: CCE on green code
• KT-82684 "Don't know how to compile annotation value ERROR_EXPR" on incorrect array literal in annotation default arguments
• KT-81948 K2: ClassCastException: "java.lang.String cannot be cast to java.lang.Void" when calling @Nullable Java function
• KT-82788 false-positive duplicate JVM class name error in IJ monorepo
• KT-82841 "kotlin.NoWhenBranchMatchedException" in when with !is check & non-sealed class in the middle of hierarchy
• KT-82844 "when" with no branches does not evaluate subject (side effects ignored)
• KT-81625 Incorrect empty parameters parsing (comma is highlighted in red)
• KT-81193 K2: SOE from AbstractTypeApproximator.approximateToSuperType with local enum class
• KT-65059 Stack overflow when typechecking an Elvis expression with deeply generic values
• KT-82555 @Deprecated(HIDDEN)` objects not skipped when resolving qualifiers
• KT-82737 Leaked type variable in diagnostic when top-level lambda with uninferred type parameter has non-functional expected type
• KT-78019 Change K1 API deprecation level from Warning to Error
• KT-82683 K2: FIR2IR: compile-time JVM codegen failure on an argument of function subtype for a KSuspendFunction parameter
• KT-82671 Do not report ignorability mismatch on override/actualization if the function returns Unit type
• KT-82506 Misleading compilation warning: "This class is not recommended for use in Kotlin. Use 'java.util.Map' instead"
• KT-52498 Test privateSuperType.kt is failing with caches enabled
• KT-82336 Header mode: Cannot infer argument for type parameter T
• KT-69326 Inference chooses controversial order to fix variables
• KT-82545 Handle data class with extra components in migration warning for name-based destructuring
• KT-82303 Improve UNSUPPORTED_FEATURE message when compiler argument has a parameter
• KT-81866 K2: False positive ILLEGAL_RESTRICTED_SUSPENDING_FUNCTION_CALL caused by smart-casted @RestrictsSuspension receiver
• KT-13412 Improve error message on callable reference with expression of nullable type
• KT-82466 KotlinIllegalArgumentExceptionWithAttachment when return is used in explicit delegation expression
• KT-82454 Local types aren't approximated in public declaration types
• KT-82487 False positive REDUNDANT_VISIBILITY_MODIFIER inside private class
• KT-82369 [K2 REPL] Crash in the serialization plugin backend with "unable to transform declaration"
• KT-82243 Usage of nested type aliases is forbidden despite the feature flag
• KT-62900 K2: Expected expression to be resolved during Fir2Ir
• KT-81941 IllegalArgumentException: class org.jetbrains.kotlin.psi.KtValueArgument is not a subtype of class org.jetbrains.kotlin.psi.KtExpression for factory POSITIONED_VALUE_ARGUMENT_FOR_JAVA_ANNOTATION
• KT-80741 Fix rendering of inner classes with generic outer classes
• KT-82331 Do not propagate context parameters from classes to constructors
• KT-77276 K2: Wrong scope for annotation arguments for the parameters of a secondary constructor header
• KT-77275 Inconsistency between scopes for primary/secondary constructor headers
• KT-15152 Improve error message for unresolved reference for delegation specifier and primary constructor call
• KT-81498 Make Kotlin/Native stdlib in distribution reproducible
• KT-81408 Allow local-variable-target annotations on destructuring declarations
• KT-82012 Annotations without parentheses on full form of name-based destructuring don't work
• KT-81915 Exception when analysing 'when' expression with annotated expression as a subject
• KT-78364 Static methods are not generated for companion object JvmStatic property accessors with JvmExposeBoxed
• KT-81838 Prohibit usage of nested type aliases (from lib) for sources with LV < 2.3
• KT-81357 Forbid compilation of code with explicit root_ide_package in CLI mode
• KT-73138 K2: "Assignment type mismatch" when class name is underscore_
• KT-82169 Add quotes to message of WRONG_NUMBER_OF_TYPE_ARGUMENTS
• KT-78386 JvmExposeBoxed (with no name) + JvmOverloads + JvmName produces ambiguity
• KT-78358 Propagated JvmExposeBoxed annotation doesn't copy JvmName argument
• KT-81699 Move native klib compilation to a separate module
• KT-81692 Decouple compilation of Native klib from the Native backend
• KT-80673 Consider forbidding/minimizing usages of ClassId.isLocal and CallableId.isLocal
• KT-81376 False negative UNEXPECTED_TRAILING_LAMBDA_ON_A_NEW_LINE & bad positioning
• KT-81946 false-positive JAVA_CLASS_ON_COMPANION in case of an explicit companion reference
• KT-74461 K2: Render function types nicely
• KT-81875 NCDFE: kotlinx/coroutines/internal/intellij/IntellijCoroutines at :compiler:multiplatform-parsing:jvmTest
• KT-49722 Report NOT_YET_SUPPORTED_IN_INLINE for inherited default parameters with inline function
• KT-81913 Inapplicable candidate when vararg-adaption for callable reference might be used (array parameter)
• KT-81841 Inapplicable candidate when vararg-adaption for callable reference might be used (generic parameter)
• KT-39697 "Cannot infer type parameter" in map with java static or global method reference
• KT-81896 Improve RedundantCallOfConversionMethod inspection for @UnsafeNumber annotated typealiases
• KT-66413 Incorrect line mapping in suspendable code before suspend call without parameters
• KT-80525 Update IntelliJ SDK dependency to 251.27812.49
• KT-81808 Setting hasDefaultValue = true in irValueParameter() crashes the compiler
• KT-78927 False positive 'USELESS_JVM_EXPOSE_BOXED'
• KT-81703 Drop obsolete K1 frontend code from Kotlin/Native
• KT-81698 DecoupleSpecialBackendChecksTraversal from Native backend
• KT-81687 Different LightTree and PSI outputs when annotated class-like declaration is used as an expression
• KT-81302 False positive: Type Mismatch caused by context parameters, lambdas, and generics
• KT-81584 IAE "Collection contains more than one matching element" in FirElementSerializer on contextual property with same name as primary value class property
• KT-77237 JvmExposeBoxed breaks compilation with a secondary constructor with value class
• KT-81262 False positive: Access declaration type exposure: during access to public function class from internal inline declaration
• KT-80112 Kotlin Debugger: “Cannot find local variable” on evaluating default lambda inside inline function
• KT-76806 K2: AIOOBE in FirEqualityCompatibilityChecker
• KT-81693 Introduce lightweight versions of KonanConfig and PhaseContext
• KT-72446 K/N: inline function's default values aren't lowered with caches
• KT-81521 Anonymous function in context parameters breaks parser
• KT-80853 Class reference in context parameters breaks parser
• KT-81441 Missing type checks when class has deeply generic supertype
• KT-79116 Wrong parameter arguments mapping (compiler skips empty arguments)
• KT-81422 False negative in full-form name-based destructuring: annotations before val/var not rejected
• KT-80652 K2: USELESS_IS_CHECK is not detected in when
• KT-80049 Mangle ERROR_TYPEs in diagnostics reported to user
• KT-73786 Evaluator: cannot evaluate inline methods with reified parameter
• KT-75828 Store backing field/delegate annotations and extension receiver annotations in metadata
• KT-74572 Context parameters: contracts don't work with context parameters
• KT-42824 FIR: false INAPPLICABLE_CANDIDATE when using in variance on a Java class

Compose compiler

• b/481953005, b/481769383 Cache stability inference results during session
• b/481735904 Fix Compose codegen crash in inline function
• b/479646393 Add groups to inline functions with two or more inline parameters
• b/458234821 Disable Compose K1 tests on CI
• b/456948687 Force resolution of declarations when looking up SAM functions in FIR
• b/445426829 Add a diagnostic for key call with no arguments

IR. Actualizer

• KT-82418 KMP Separate Compilation: NPE caused by actualization of NsCalendar.getEra
• KT-82313 ACTUAL_ANNOTATION_CONFLICTING_DEFAULT_ARGUMENT_VALUE checks throw conflicting values in expected and actual annotations

IR. Inlining

Fixes

• KT-82017 [Inliner] Inline function overrides abstract method with default value
• KT-80814 [IR Inliner] Space: jsBrowserProductionWebpack task failed with HookWebpackError
• KT-83280 Split LibrarySpecialCompatibilityChecksTest into pure JS and pure Wasm tests
• KT-81766 K/N: Recursive inline expect/actual causes StackOverflowError
• KT-80953 [Inliner] Eliminate excessive IMPLICIT_CAST after IR Inliner on 2nd stage.
• KT-79899 [IR Inliner] Split single-module tests having inline fun into files
• KT-83148 KLIB inliner: Make both "inliner" language features to require Api Version = 2.3
• KT-80791 classFunctionsAndFieldsWithCrossModuleInliner fails per-file with cross-module inliner
• KT-80696 Can not get instance of singleton 'Obj': No class found for symbol
• KT-82065 IR inliner: Inline function's default value argument may get wrong offsets in a temporary variable
• KT-81753 Review diagnosticReporters usage in pre-serialization lowerings
• KT-80793 Test friendDependencyWithCrossModuleInliner fails per-file with cross-module inliner
• KT-80698 [IC][WASM] Mismatched file stats
• KT-80697 [IC][JS per file] Mismatched rebuilt modules
• KT-80660 [Inliner] Bodyless functions should not be inlined at 1st compilation stage
• KT-79064 Try to get rid of TypeOfPostProcessor

IR. Interpreter

• KT-82161 Enable Enum.name and KCallable.name to constant evaluation
• KT-80646 Enable unsigned conversion functions when bootstrapped compiler is available

IR. Tree

• KT-82765 Kotlin/Native: Internal compiler error when building DFG
• KT-82829 IR deserializer: Don't deserialize any cinterop fake overrides from Klibs
• KT-83236 PeopleInSpace_mpp compilation error: The symbol table has been sealed
• KT-81154 [IrValidator] Fine-tune IrVisibilityChecker on 2nd stage
• KT-80243 Support Name Based Destructuring in loop with withIndex()
• KT-79436 KLIB stdlib symbols loading: Drop all functions from SymbolFinder except for loading the whole collection of (potentially unbound) symbols by name
• KT-79435 KLIB stdlib symbols loading: Load symbols and and filter/map them lazily in BuiltinSymbolsBase hierarchy when accessed by IR
• KT-69082 Migrate maps of IR elements to IR attributes
• KT-67457 Introduce a way to simplify IR lowering phase creation

JVM. Reflection

New Features

• KT-22265 Support for inherited annotations

Performance Improvements

• KT-84600 Performance regression around Kotlin properties JVM reflection during instantiation

Fixes

• KT-83608 Kotlin-reflect: "Unknown origin of public abstract operator fun invoke(p1: P1, p2: P2): R"
• KT-57357 Reflection: "KotlinReflectionInternalError" when using callBy on constructor that has inline class parameter with nullable value
• KT-83361 "KotlinReflectionInternalError: Type parameter not found: 0" on super types with Kotlin 2.3.0
• KT-42199 "KotlinReflectionInternalError: Unknown origin of public abstract operator fun invoke" on function reference to FunctionN.invoke
• KT-81024 Reflection: New KType implementation fails on arguments comparison for a Nothing type parameter
• KT-83067 Reflection: IAE "argument type mismatch" on callBy with vararg of generic type parameter with primitive upper bound
• KT-82699 Reflection: incorrect behavior of KFunction.isExternal for Java native methods
• KT-82350 Reflection: incorrect behavior of KType.javaType on a type obtained from KType.withNullability
• KT-29203 KType.javaType always returns void class for local delegated property
• KT-81899 Reflection: incorrect javaType for local delegated property setter return type
• KT-82093 Reflection: IAE from defaultType for inner class of generic class
• KT-77312 KotlinReflectionInternalError: "Container of deserialized member is not resolved" on computing type parameter captured in a local delegated property
• KT-82316 Reflection: type parameters of top-level declarations behave incorrectly
• KT-81987 Reflection: error when calling function in inline class with inherited default value
• KT-81870 Reflection: Error when calling function with default parameters and extension receiver
• KT-81880 Reflection: Error when calling function with default & context parameters
• KT-81907 Reflection: incorrect result when calling function with default values and context parameters
• KT-81859 Reflection: do not use descriptors in ValueClassAwareCaller
• KT-81854 Reflection: incorrect type for instance receiver of inner class constructor
• KT-81855 Reflection: IAE "object is not an instance of declaring class" on function with context and extension receiver of inline class
• KT-81843 Reflection: NPE on accessing property accessor returnType for Java field
• KT-81588 Reflection: KotlinReflectionInternalError "Inconsistent number of parameters" on calling contextual declaration with value class type in the signature
• KT-81111 Reflection: suspend function types are loaded incorrectly by the new implementation
• KT-81206 Reflection: non-substituted Function type in suspend function supertypes
• KT-81804 Reflection: remove support for multi-field value classes
• KT-81664 Reflection: IAE "argument type mismatch" on calling member extension with value class in the signature

JavaScript

New Features

• KT-83454 K/JS: Support ES6 classes in js() calls
• KT-83455 K/JS: Support ES6 default function arguments in js() calls
• KT-83453 K/JS: Support ES6 concise methods in js() calls
• KT-83457 K/JS: Support ES6 spread operators in js() calls
• KT-83456 K/JS: Support ES6 rest function parameters in js() calls
• KT-54504 K/JS: Support ECMAScript tagged string templates
• KT-82327 KJS: Export parameter names of function types if present in .d.ts files
• KT-82371 KJS: Generate more concrete TypeScript for members of an uninhabited enum

Performance Improvements

• KT-16379 KotlinJs - ArrayList get is now slow

Fixes

• KT-64951 Kotlin-Multiplatform does not allow JSExport of expect
• KT-83528 K/JS: Array holes in array literals are ignored in the new js() parser
• KT-84134 KJS/CMP: "IrLinkageError: Function 'get' can not be called: No function found for symbol"
• KT-65802 How to implement Interfaces in Javascript/Typescript?
• KT-83830 Relocate org.antlr.v4 to an internal package
• KT-83572 KJS/Wasm: Cannot access @JsModule-declared class from non-modular project
• KT-83930 Kotlin/JS: JsStatic on property of interface companion generates incorrect d.ts
• KT-70986 Add Swc into the compilation pipeline of Kotlin/JS
• KT-78742 Investigate the usage of the ANTLR-generated parser for the js function
• KT-60554 KJS: rethink JS_*_NAME_CLASH diagnostics
• KT-82552 KJS: "Non-abstract class does not implement inherited abstract member from class" errors in generated .d.ts
• KT-82652 KJS: Exported abstract inner classes can be constructed from TypeScript
• KT-82542 KJS: Inner class can be constructed from TypeScript without passing an outer instance
• KT-82499 KJS: Omit parameters in private constructors in .d.ts files
• KT-41082 KJS: 'Reflection is not supported on JavaScript target, so you won't be able to read this annotation in runtime' warning is inconvenient and misleading
• KT-82279 KJS: DCE removes external members overrides without reason
• KT-52800 KJS / IR: sealed interface with nested data classes not accessible
• KT-67460 Use new lowering phase creation API in JS backend
• KT-82667 Kotlin/JS: ESM TypeScript definitions for exported nested Enums do not compile
• KT-82553 KJS: Incorrect .d.ts generated for generic inner classes
• KT-82263 Implement exporting top-level properties in Analysis API-based TypeScript Export
• KT-82362 KJS: Incorrect types generated in .d.ts for JsName-annotated enum entry
• KT-82262 Implement exporting top-level functions in Analysis API-based TypeScript Export
• KT-82144 K/JS: 'meta' identifier usage in js() inline calls prevents expression from parsing
• KT-82149 K/JS: new calls without arguments produce exceptions in js() inline calls
• KT-81730 Optimize suspend functions compilations via JS generators
• KT-79243 [JS] Drop K1-specific tests, testrunners and test directives

Klibs

New Features

• KT-83101 Implement experimental KLib ABI dump parser

Fixes

• KT-82586 Export in previous version (JS, Wasm): adjust the checker for incompatible Kotlin stdlib/compiler pairs
• KT-84273 [Klib] Added IrOffsetsChecker broke backward klib compatibility
• KT-80910 [Klib] Ensure serialized source coordinates are correct
• KT-81955 [JS] Support testing of forward compatibility with export in previous version
• KT-81957 [JS] Create a common Gradle test task
• KT-82736 False positive IR_PRIVATE_CALLABLE_REFERENCED_BY_NON_PRIVATE_INLINE_FUNCTION_ERROR on referenece to local declaration
• KT-82758 [PL] Change the behavior of getting name of removed property
• KT-81470 Simplify inline function deserialization after the bootstrap update
• KT-81466 Enable KlibAnnotationsInMetadata by default in LV 2.5
• KT-82208 K/Wasm: allow using newer stdlib with older compiler
• KT-83328 kotlin-wasm-benchmarks: Compilation errors due to missing KLIB dependencies
• KT-83071 Failure on Native Nightly
• KT-78365 [PL] Change the behavior of getting name of removed function
• KT-81977 Klib compatibility tests: Implement sanity checks
• KT-81410 Klib metadata: migrate to using the common annotations instead of klib-specific extensions in kotlinx-metadata-klib
• KT-82577 Don't use KLIB resolver in the KLIB tool
• KT-82213 IR linker doesn't complain when a private value class constructor is used from another module
• KT-81003 KLIBs: Eliminate excessive implicit casts in common prefix on the 1st stage
• KT-81670 K/N: Many Section still use none cacheable zip when Xklib-zip-file-accessor-cache-limit flag set
• KT-81954 [JS] All forward compatibility tests fail
• KT-81709 [KLIB Reproducibility] KLIB zip file generation is non-deterministic due to unsorted file system traversal
• KT-81474 [Tests][Klibs] Migrate Klib evolution tests to PL tests engine

Language Design

• KT-83009 Exposing of non-exportable API from interfaces
• KT-73502 Context parameters: it is not possible to declare local function with a context

Libraries

New Features

• KT-81997 Method to create a detached copy of a Map entry
• KT-79093 Expose FirResolvedStatus.hasMustUseReturnValue in kotlin-metadata

Performance Improvements

• KT-75801 Optimize Array to list conversion using array copy instead of a loop
• KT-82038 K/N: iterating over Array.asList is slower compared to ArrayList

Fixes

• KT-78115 Investigate the current situation with 22 kotlin.context standard library overloads
• KT-82363 Add assertIs to the list of ignorable functions
• KT-80666 K/N and K/Wasm: Regex: unassigned category is excluded from other chars
• KT-80665 K/N and K/Wasm: Regex: unicode category Symbol matches some punctuation marks
• KT-78089 K/N: Regex: Quantified groups matching is causing a stack overflow
• KT-82783 HashMap (K/N, Wasm), MapBuilder (all targets) duplicate keys
• KT-52400 Deprecate @BuilderInference
• KT-80786 Annotate kotlin-stdlib-jdk7/8 with @IgnorableReturnValue
• KT-83181 Remove @IgnorableReturnValue from contract DSL functions
• KT-82033 Array<Array>.flatten fails with obscure error when total length exceeds List's size limit
• KT-83290 Remove unnecessary ExperimentalTime annotation from Uuid functions
• KT-83026 Specify compareTo behavior for Boolean
• KT-82868 Restore accidentally deleted JS-specific note in ArrayList documentation
• KT-81563 Document kotlin.collections.HashMap and HashSet
• KT-81562 Document kotlin.collections.ArrayList
• KT-60535 Mark SubclassOptInRequired and RequiresOptIn with MustBeDocumented
• KT-64649 Add explanation to "A compileOnly dependency is used in the Kotlin/Native target" warning message

Native

• KT-83542 Switch the default GC back to PMCS in 2.3.20-RC
• KT-82387 Kotlin <-> Xcode compatibility issue
• KT-75806 KN Compiler with debug build can not produce executable with debug info
• KT-81828 Update exception messages regarding disabling native cache
• KT-81495 Consider making Kotlin/Native distribution compiler cache reproducible
• KT-81501 Make Kotlin/Native distribution runtime .bc and fingerprint reproducible
• KT-80790 'Argument list too long' error when using dynamic_caches
• KT-48566 ExceptionInInitializerError when configuring Gradle project with kotlin-multiplatform plugin on a host unsupported by Kotlin/Native

Native. Build Infrastructure

• KT-82886 KonanTarget's clinit causes deadlock
• KT-81345 Temporary turned off Swift Export execution tests
• KT-80869 Extract per-module test generators for Native tests
• KT-82028 Kotlin/Native: move runtime building flags to runtime building code
• KT-81500 Make Kotlin/Native distribution shared libraries reproducible
• KT-72011 Kotlin/Native: consider building platform libraries with bootstrap compiler
• KT-81666 Kotlin/Native: build stdlib with the bootstrap compiler

Native. C and ObjC Import

• KT-79741 Native: implement type checking against Objective-C protocols without protocolGetter
• KT-83039 Native: mark header-defined functions and globals unavailable with -Xccall-mode direct
• KT-82200 Native: implement type checking against Objective-C protocols with objc_runtime_name without protocolGetter
• KT-82669 Kotlin/Native: cinterop tests failure with no class for metaclass
• KT-79742 Native: import C global variables without C wrappers
• KT-81937 Native: switch cinterop to -Xccall-mode both by default for custom cinterop klibs
• KT-81548 Native: compiler doesn't sanitize CCall.Direct symbol names in C stubs
• KT-81538 Native: InteropBridgesNameInventor doesn't handle legitimate '$' characters in function names
• KT-81017 Native: compiler can't call CCall.Direct with '$' in the symbol name

Native. ObjC Export

• KT-82160 K/N: bridge for fake override is not built but requested
• KT-83736 Objective-C export with objcExportBlockExplicitParameterNames generates invalid block signature when lambda parameter is named id
• KT-83014 Native: experimental support for generating an NS_ENUM in addition to an Objective-C class for Kotlin classes
• KT-76637 ObjCExport: K1 + K2 integration test

Native. Runtime

• KT-82077 Kotlin/Native: in runtime make main module depend on mm module

Native. Runtime. Memory

• KT-82635 Enable CMS GC by default in 2.3.20-Beta1
• KT-83470 Potential race condition in TryRequestThreadsSuspension due to initialization order
• KT-83549 Provide an experimental Platform property which returns information about object allocation mode
• KT-83535 Typo in out-of-memory error message
• KT-81152 Kotlin/Native: deprecate isMemoryLeakCheckerActive
• KT-81156 Kotlin/Native: deprecate forceCheckedShutdown

Native. Swift Export

New Features

• KT-82908 Swift Export: bridges for FT should be recursive

Fixes

• KT-82054 Swift Export: private set is ignored by swift export
• KT-83499 Swift Export: trampoulines w/ varargs results in a broken swift code
• KT-83655 Typealias to a closure receiving a closure results in broken swift code
• KT-82053 Swift Export: Returning generic on top level function produces uncompilable code
• KT-80971 Swift Export: Support exception throwing
• KT-83141 Swift Export: suspendable covariant functional type
• KT-82907 Swift Export: attributes are not printed for parameters of closures
• KT-80970 Swift Export: Support cancellation
• KT-82726 Swift Export: filters out wrong module for coroutines
• KT-81591 Custom type translation rules in Swift export
• KT-81270 K/N - Build fails when exposing suspend functions

Tools. BCV

• KT-80938 Binary compatibility validation: can't exclude container types of Repeatable annotations by filters.excluded.byNames
• KT-83484 Create fat-jar artifact for abi-tools [ABI Validation]
• KT-80747 Refactor API of ABI tools [ABI Tools]

Tools. Build Tools API

New Features

• KT-80681 BTA: introduce a special argument for passing compiler plugins
• KT-80338 Kotlin CRI generation
• KT-78198 BTA: implement basic metrics collection
• KT-79975 BTA: add ability to cancel build operations
• KT-81790 [BTA] Make build operations and configuration immutable after execute
• KT-82702 BTA: Allow collecting compiler lookups in non-incremental mode
• KT-81847 Add CRI <-> BTA integration
• KT-81845 Add CRI <-> Maven integration

Fixes

• KT-84577 BTA: API 2.3.20 incompatible with compiler 2.3.10
• KT-82682 BTA: reading non-nullable arguments may return null or throw NPE
• KT-81729 BTA: loading from a classloader without implementation fails with CNFE instead of error with explanation
• KT-83971 BTA: OperationCancelledException cannot be thrown properly from isolated classloader
• KT-82167 Add BuildTimeMetric for the CRI data generation
• KT-81846 Add FUS for CRI usage in Gradle / Maven
• KT-82399 [BTA] JvmClasspathSnapshottingOperationImpl doesn't use Option defaults
• KT-82039 BuildEvent compilation error missing with KGP 2.3.0-Beta1
• KT-81887 Implement the CRI lookup data generation
• KT-81886 Implement the CRI data serialization
• KT-81780 Add Gradle <-> CRI integration tests
• KT-81645 BTA prints unreadable version in "option available only since" error (shows KotlinReleaseVersion@hash instead of 2.x.y)

Tools. CLI

• KT-83044 Report redundant CLI arguments when they have no effect
• KT-83202 Report all errors during parsing CLI arguments instead of a single one
• KT-73320 Migrate the main JS CLI pipeline to the phased structure
• KT-81898 Introduce a CLI option to disable source file sorting
• KT-73606 Provide a unified interface for managing the reporting of compiler warnings
• KT-48419 Using a @RequiresOptIn API that does not exist should have an option to not output a warning
• KT-81861 Introduce a mechanism that allows suppressing CLI diagnostics
• KT-82321 KMP Separate Compilation: Common fragments are missing forward declaration symbol providers
• KT-81551 Introduce an experimental CLI option for enabling local type aliases
• KT-74196 Remove patched copy of com.intellij.util.lang.JavaVersion from the Kotlin repo

Tools. CLI. Native

• KT-64509 Refactor Kotlin/Native compiler setup: run FE without KonanConfig

Tools. Compiler Plugin API

• KT-83823 Deprecate PreprocessedVirtualFileFactoryExtension
• KT-82809 [FIR][IC] New containingFileName parameter API is not actually compatible with IC
• KT-46709 IR plugin lookups don't work as expected for expect class with actual typealias
• KT-82518 Disable automatic body generation of the plugin-generated callables
• KT-82159 [FIR] Automatically add expressions to properties or functions
• KT-58886 K2: compiler plugin generated top level declarations cause AssertionError on K/JS and K/Native

Tools. Compiler Plugins

New Features

• KT-71893 Support @Builder lombok annotation on methods
• KT-28594 Add a 'jpa' pre-defined flavor to the allOpen compiler plugin.
• KT-81604 Lombok Kotlin compiler plugin and -Werror: Unable to ignore warning for the plugin appliance

Fixes

• KT-83119 Lombok. canEqual is not available from kotlin for a class with @Data annotation
• KT-83334 Lombok. Builder function is unavailable for a generic class
• KT-83063 Lombok: Setter/getter is not available with a protected access level
• KT-83217 Lombok. With method is available for the static field
• KT-83120 Lombok. A constructor is available for a class with an existing constructor and @Data/@Value annotation
• KT-83256 Lombok. Setter is available for non-final fields if @Value and @Data/@Setter are used together
• KT-83251 Lombok. Constructor from @Value includes fields that are initialized in declaration
• KT-83252 Lombok. Class marked with @Value isn't final
• KT-83085 Lombok: getter/setter is available for a static field if class is annotated
• KT-83078 Lombok: getter and setter are not available for a static Java field
• KT-82341 Migrate official compiler plugins to IC-safe reference... API

Tools. Compiler plugins. Compose

• KT-84218 [2.3.20-Beta1] "IllegalStateException: no implementation for FUN MISSING_DECLARATION" during bitcode lowering
• KT-84055 Reference to lambda in lambda in function 'TextField' can not be evaluated

Tools. Compiler plugins. Serialization

• KT-82351 Migrate kotlinx.serialization to IC-safe reference... API
• KT-76949 Serialization: "IllegalStateException: Serializer for element of type kotlin.Any has not been found" on custom serializer for Map<String, Any?>
• KT-73107 Serialization: "IllegalStateException: Serializer for element of type kotlin.Any? has not been found" with star projection

Tools. Gradle

New Features

• KT-79389 Add allopen plugin + JPA preset to kotlin.plugin.jpa
• KT-78200 Gradle: enable JVM compilation through BTA by default
• KT-81844 Add CRI <-> Gradle integration

Performance Improvements

• KT-84152 Memory Leak and OOM Errors in Kotlin Gradle Plugin 2.3.20-Beta2 with in-process execution mode

Fixes

• KT-80186 Remove usage of deprecated Gradle API Project.container(...)
• KT-78754 KGP: Remove usages of isVisible/setVisible
• KT-80356 Compatibility with Gradle 9.2.0 release
• KT-78763 Compatibility with Gradle 9.1.0 release
• KT-83316 [BTA] Build Reports missing information when JVM compilation uses Build Tools API
• KT-82885 Run tests against Gradle 9.3.0
• KT-83125 Deprecate out-of-process compilation mode
• KT-82323 Deprecate LanguageSettings.enableLanguageFeature DSL
• KT-83323 Run integration tests against Gradle 9.2
• KT-82884 Compile against Gradle API 9.3.0
• KT-78104 Deprecate CleanableStore infrastructure
• KT-80096 Strange "Inconsistent JVM Target Compatibility" warning
• KT-82715 Declaring dependencies using multi-string notation has been deprecated
• KT-83161 CRI: it is not clear that CRI generation requires BTA being enabled
• KT-82717 Specifying 'org.gradle.java.installations.auto-detect' as a project property on the command line has been deprecated
• KT-81830 Create autogenerated kotlin version constants to be used with disableNativeCache DSL
• KT-83322 Compile against Gradle 9.2 API
• KT-81831 Verify Problems API implementation with Gradle guidelines
• KT-80120 Support colored value for --console command in Gradle 9.1
• KT-81400 ToolingDiagnosticFactory: check if documentationLink set multiple times
• KT-83070 The KGP api reference is missing a description
• KT-82459 Improve iOS simulator boot implementation
• KT-80008 Track cross compilation status from project dependencies
• KT-78764 Compile against Gradle 9.1 API

Tools. Gradle. BCV

• KT-80674 Rename tasks to avoid using legacy word [ABI Validation]
• KT-80614 Add dependency on abi check from gradle's check task [ABI Validation]
• KT-80827 Delete DSL for working with dump variants [ABI Validation]
• KT-80823 Stabilize DSL for filtering [ABI Validation]

Tools. Gradle. Cocoapods

• KT-80641 EXECUTABLE_DEBUG_DYLIB_PATH problem
• KT-80644 Cocoapod plugin builds a synthetic project for "generic/platform=iOS Simulator"

Tools. Gradle. JS

• KT-84772 Bundled yarn.lock for kotlinWasmToolingSetup does not include @swc/helpers@0.5.17
• KT-82946 Js, Wasm: Upgrade NPM dependencies

Tools. Gradle. Multiplatform

New Features

• KT-77258 Query status of cross-compilation or compilation task
• KT-81849 Replace kotlin-test-common and kotlin-test-annotations-common with just kotlin-test

Fixes

• KT-83917 compileCommonMainKotlinMetadata fails in CMP core repository with Kotlin 2.3.20-Beta1
• KT-82090 Kotlin JVM + Android Shared Source set fails Import with the Project Isolation enabled
• KT-81973 NPE with Cannot invoke "java.util.List.get(int)" because "path" is null in KMP + Android project
• KT-79257 Consider deprecating and removing kotlin.kmp.isolated-projects.support
• KT-81944 Legacy KMP Android uses wrong configurations to infer common dependencies
• KT-83687 Revert deprecation of 'androidTarget' for AGP lower than 9
• KT-81536 "Couldn't resolve dependency in 'commonMain' for all target platforms" in 2.2.20-Beta2
• KT-81724 IntelliJ successfully resolves imports that are not actually available in the given module
• KT-79073 compileTest* tasks pass separateCompilation parameters but don't behave accordingly
• KT-71130 Enable Isolated Projects support by default for KMP

Tools. Gradle. Native

• KT-84759 iosX64 should not be marked as deprecated in Kotlin Gradle DSL
• KT-83598 KotlinNativeDownloadTask build caching is unsafe
• KT-80715 Deprecate kotlin.native.cacheKind and introduce DSL instead
• KT-83353 DisableNativeCache breaks up-to-date checks for non-cacheable K/N targets
• KT-81443 ConfigurationCacheError on Linux arm64 due to disabled iOS targets
• KT-82970 Warning about disabled K/N caches for non-cacheable targets is printed twice
• KT-82786 Warning about disabled K/N caches is displayed twice

Tools. Gradle. Swift Export

• KT-82727 Swift Export: generated kotlin bridges don't see neighboring modules

Tools. Gradle. Wasm

• KT-82525 K/Wasm: kotlinToolingSetup does not depend on package manager installation

Tools. Incremental Compile

• KT-80483 Incorporate IC lookups into reference... methods of IrPluginContext

Tools. JPS

• KT-76927 Switching from VAL to VAR does not trigger recompilation of usage in Kotlin-uses-Kotlin
• KT-79362 JPS/NoArg: Failed to build project with 'java.lang.NoClassDefFoundError: org/jetbrains/kotlin/com/intellij/psi/PsiElement'

Tools. Kapt

• KT-81691 K2: KAPT: "ClassCastException: IrErrorTypeImpl cannot be cast to class IrSimpleType"
• KT-82338 K2 KAPT: ISE "Cannot evaluate IR expression in annotation" on unresolved enum usage

Tools. Maven

• KT-83565 Maven: auto‑detect src/main|test/kotlin
• KT-79304 Maven: Automatically add kotlin-stdlib dependency
• KT-83111 Add JavaVersion argument resolver for kotlin-maven-plugin-test
• KT-83112 Add MavenVersion argument resolver for kotlin-maven-plugin-test

Tools. REPL

• KT-82575 [K2 REPL] Redesign frontend resolution for REPL snippets
• KT-82741 [K2 Repl] OOM in FirJavaElementFinderKt.collectAllDependentSourceSessionsTo when rerunning the same cell multiple times

Tools. Scripts

• KT-81679 Script explain: while loop explanation may lead to the hanging code
• KT-81677 Script explain: Contents of the if/when branches are not explained
• KT-67063 LauncherReplTest flaky on Windows

Tools. Statistics (FUS)

• KT-82877 Add performance measurement for KLIB size
• KT-79576 Included build subprojects produce FUS files with unknown_id when configuration cache is enabled

v2.3.10

Compare Source

Compiler

• KT-83984 Data races around kotlinx.serialization plugin protobuf extensions registration
• KT-83317 ClassCastException: with cast kotlin.UInt to java.lang.Number when defining constant
• KT-83031 K2: unstable resolution of EnhancedNullability from type-use NotNull in presence of unused code
• KT-81700 flaky overload resolution behaviors (false-positive errors, different final candidates, compile-time failures)
• KT-83983 Revert of KT-83081
• KT-83314 JSpecify @NullMarked changes Java equals(Object) to equals(Any?) causing override conflict in Kotlin 2.3
• KT-82863 @NoInfer regression since 2.2.20
• KT-82841 "kotlin.NoWhenBranchMatchedException" in when with !is check & non-sealed class in the middle of hierarchy

JVM. Reflection

• KT-83608 Kotlin-reflect: "Unknown origin of public abstract operator fun invoke(p1: P1, p2: P2): R"
• KT-83361 "KotlinReflectionInternalError: Type parameter not found: 0" on super types with Kotlin 2.3.0
• KT-42199 "KotlinReflectionInternalError: Unknown origin of public abstract operator fun invoke" on function reference to FunctionN.invoke
• KT-81024 Reflection: New KType implementation fails on arguments comparison for a Nothing type parameter

Tools. Compiler Plugins

• KT-83266 "Unsupported class file major version 69" for "produceReleaseComposeMapping" task with Kotlin 2.3
• KT-83099 Compose compiler does not generate stack trace mappings for project files

Tools. Gradle

• KT-83070 The KGP api reference is missing a description
• KT-82459 Improve iOS simulator boot implementation

Tools. Gradle. JS

• KT-82946 Js, Wasm: Upgrade NPM dependencies

Tools. Gradle. Multiplatform

• KT-83687 Revert deprecation of 'androidTarget' for AGP lower than 9

v2.3.0

Compare Source

Analysis API

• KT-80082 K2. False positive "Cannot resolve method" for self-bounded generic with wildcard return type in Java interop
• KT-80303 Move :native:analysis-api-klib-reader to :libraries:tools

Analysis API. Code Compilation

• KT-70860 K2 IDE / Kotlin Debugger: CCE “java.lang.String cannot be cast to java.lang.Void” on evaluating not-null variable on the line with assigning null to that var
• KT-78554 K2 IDE / Kotlin Debugger: ISE “No override for FUN IR_EXTERNAL_DECLARATION_STUB” on calling toString() for local class instance during evaluation
• KT-73201 K2 IDE: Error while evaluating expressions with local classes

Analysis API. FIR

• KT-81378 Expected expression 'FirFunctionCallImpl' to be resolved caused by suspend {}
• KT-80473 Add events for tracking LL activities
• KT-46375 Analysis API: Support cross-file class redeclaration checks using indices
• KT-80471 Analysis API: Deduplicate equivalent call candidates in resolveToCallCandidates
• KT-79653 [Analysis API] ContextCollector: BODY context of enum classes doesn't contain enum entries
• KT-75858 K2 AA: False positive 'property must be initialized' on incremental analysis with 'field' usage and semicolon in setter
• KT-80231 AnnotationArgumentsStateKeepers doesn't restore the initial annotation in some cases
• KT-80233 Pull mutation out of AnnotationArgumentsStateKeepers
• KT-71466 LLFirBuiltinsSessionFactory uses createCompositeSymbolProvider
• KT-76432 JavaClassUseSiteMemberScope: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl

Analysis API. Infrastructure

• KT-80717 Support IntelliJ Bazel build in the Kotlin Coop development mode

Analysis API. Light Classes

• KT-80656 Duplicate no-args constructor in PSI
• KT-60490 Symbol Light Classes: Property accessors from a delegated interface don't present in the delegating class
• KT-79689 SymbolLightClassForClassLike.toString() causes PSI tree loading
• KT-80690 Private interface functions are not present in light classes
• KT-80256 K2: Certain actions in JPA code causes infinite PIEAE: "Element class CompositeElement of type REFERENCE_EXPRESSION (class KtNameReferenceExpressionElementType)"
• KT-79012 Add a high-level overview of light classes

Analysis API. Providers and Caches

Fixes

• KT-81476 Analysis API: AlreadyDisposedException from low-memory cache cleanup
• KT-80911 Analysis API: Execute session invalidation in a non-cancelable section
• KT-81242 Analysis API: Add UUID/lifetime properties to LL FIR session structure logging
• KT-80622 Analysis API: Visualise LL FIR session structure & weight
• KT-80904 Analysis API: "Invalid dangling file module" exception during session invalidation
• KT-78882 K2 AA: Calling containingSymbol on getProgressionLastElement causes exception
• KT-58325 Analysis API: Combine LLKotlinStubBasedLibrarySymbolProviders in session dependencies (optimization)
• KT-77825 Analysis API: CheckersComponent consumes a lot of memory while being unused in LL FIR sessions
• KT-76526 Incorrect built-in module is provided for non-JVM sources in Standalone
• KT-62549 Analysis API: Cache callables in combined Kotlin symbol providers
• KT-70721 LL FIR: investigate possibility of moving LLFirFirClassByPsiClassProvider . getClassByPsiClass (PsiClass) to symbol providers
• KT-72998 Analysis API: Introduce getClassLikeSymbolByPsi to LL FIR symbol providers

Analysis API. Standalone

• KT-81108 AA: java.lang.ClassCastException: class org.jetbrains.kotlin.fir.FirBinaryDependenciesModuleData cannot be cast to class org.jetbrains.kotlin.analysis.low.level.api.fir.projectStructure.LLFirModuleData
• KT-80573 Potential performance issue on class ID computation
• KT-80559 Try to optimize KotlinStandaloneDeclarationProviderFactory startup for tests
• KT-71706 Analysis API Standalone: StandaloneProjectFactory.createSearchScopeByLibraryRoots creates inefficient file-based search scopes

Analysis API. Stubs and Decompilation

Performance Improvements

• KT-77097 Support ReplaceWith deprecation annotation argument via stubs

Fixes

• KT-80350 Drop K1 decompiler
• KT-77082 StackOverflowError in CreateFreshTypeVariableSubstitutorStage.shouldBeFlexible
• KT-80798 Improve stubs tests coverage
• KT-75318 Read context parameter fields from metadata in CallableClsStubBuilder
• KT-77874 AA disagrees with the compiler on descriptions of context parameters from binaries in messages for context argument ambiguity errors
• KT-80276 Implement native coping for stubs
• KT-79780 Decompiled MultifileClass has Facade kind
• KT-79398 isClsStubCompiledToJvmDefaultImplementation flag is inconsistent for compiled and decompiled stubs
• KT-79798 Prettify stub usages in LL stub-based deserializer
• KT-78949 AbstractLLStubBasedResolutionTest: tests against real stub-based files
• KT-80251 Inconsistent decompiled and compiled stub for properties with an initializer and a delegate
• KT-74547 Implement decompiler for K2
• KT-79555 Move KotlinFileStubImpl serialization/deserialization to the Analysis API
• KT-79487 "null DefinitelyNotNullType for 'T'" from decompiler
• KT-60764 Stub Builder: fix differences between K1 and K2 stub building on decompiled files
• KT-79484 An empty enum class with a member decompiles with a synthetic error
• KT-79730 Decompiled files have an extra Kt suffix
• KT-79483 data modifier is not present on object modifier
• KT-75398 Local classes from scripts have ClassId in stubs
• KT-79412 Context parameters with type annotations cause inconsistency errors while building stubs

Analysis API. Surface

New Features

• KT-80084 Provide endpoints for Analysis API to understand when the context sensitive resolution is used
• KT-64340 Analysis API: no way to get a type of vararg parameter
• KT-68387 AA: provide context for type approximations

Performance Improvements

• KT-80713 Optimize KaDeclarationSymbol#visibility for class-like symbols
• KT-79097 KaFirNamedFunctionSymbol#isSuspend shouldn't trigger resolution
• KT-79095 isOverride shouldn't trigger resolution if not compiler plugins present

Fixes

• KT-80234 Incorrect value of isActual for the implicitly actual constructor of annotation class
• KT-81132 Use KaSession instead of a particular KaSessionComponent for context parameter bridges
• KT-81129 K2: KaSymbolInformationProvider#importableFqName: should return null for dynamic declarations
• KT-81128 K2: KaSymbolInformationProvider#importableFqName: should return null for error destructuring declarations
• KT-81127 K2: KaSymbolInformationProvider#importableFqName: should return null for anonymous functions
• KT-81126 K2: KaSymbolInformationProvider#importableFqName: should return null for enum entry initializer constructors
• KT-81125 K2: KaSymbolInformationProvider#importableFqName: should return null for property accessors
• KT-81124 K2: KaSymbolInformationProvider#importableFqName: type alias constructor should have a reference to the type alias and not to the underlying class
• KT-70127 Analysis API: 'KaFirReceiverParameterSymbol' does not implement 'KaFirSymbol'; leads to exception from importableFqName
• KT-81123 Reimplement KaFirSymbolInformationProvider#importableFqName
• KT-81122 Drop KaImportOptimizer
• KT-78093 Add bridges for context parameters
• KT-79772 Migrate from 'validityAsserted' to 'withValidityAssertion'
• KT-79328 K2 AA, isUsedAsExpression: Unhandled Non-KtExpression parent of KtExpression: class org.jetbrains.kotlin.psi.KtImportDirective
• KT-80366 IllegalStateException from KaFirStopWorldCacheCleaner
• KT-80274 Merge AbstractMultiModuleSymbolByPsiTest to AbstractSymbolByPsiTest
• KT-80352 KaBaseResolutionScope.contains(PsiElement) always returns false for Android light classes (e.g. synthetic R.java classes)
• KT-80178 Incorrect modality for an abstract interface function with a redundant open modifier
• KT-79129 [Analysis API] KaFe10TypeCreator.buildClassType cannot build builtin types by class ids
• KT-79143 AA: argumentMapping contains an expression that is not an argument
• KT-59857 KaExpressionTypeProvider#returnType shouldn't throw an exception for class like declarations
• KT-79667 Enable resolve on java record components in standalone mode
• KT-73050 KaFirSymbolRelationProvider#expectsForActual: suspicius logic for KaReceiverParameterSymbol
• KT-78904 KaBaseWriteActionStartedChecker throws when no additional WA was done
• KT-79281 Add KDoc to KaTypePointer#restore
• KT-78597 KaUseSiteVisibilityChecker returns false for internal functions exposed via implicit receiver
• KT-71705 FIR api impl: Postfix increment expression's expressionType is Unit when incrementing array element
• KT-75057 Analysis API: Reference to object through typealias in invoke operator call leads to original type

Backend. Native. Debug

• KT-79848 Flaky debugger tests in opt.debug/cache.*/GC.CMS/GC.sch.ad/alloc.custom configuration

Backend. Wasm

New Features

• KT-59032 Support instantiation of annotation classes on WASM

Fixes

• KT-76204 K/Wasm: support generating a wasm module per kotlin module/klib
• KT-79357 K/Wasm: store data for string literals in utf8 for Latin1
• KT-82075 K/Wasm: kotlin.wasm.internal.getSimpleName crashes on iOS Safari older than 26
• KT-79244 [Wasm] Drop K1-specific tests, testrunners and test directives
• KT-69621 K/Wasm: Consider enabling support for KClass.qualifiedName by default
• KT-80397 K/Wasm: turn on by default using a new version of the exception handling proposal for wasm-wasi target
• KT-81372 K/Wasm: JsException: Exception was thrown while running JavaScript code on Safari 18.2/18.3
• KT-80018 K/Wasm: exceptions don't work properly in JavaScriptCore (vm inside Safari, WebKit)
• KT-66072 K/Wasm: improve how exceptions work in JS interop
• KT-80106 devServer in Kotlin/Wasm overwrites defaults, causing missing static paths
• KT-80210 Wasm: "Unexpected non-external class: kotlin.Nothing" caused by JsExport with JsPromise
• KT-80555 WASM IC: Can't link symbol on kotlinx.coroutines on fresh master
• KT-80415 WasmJs Number Elvis Operator Crash
• KT-76509 WasmJS: ReferenceError: Temporal is not defined caused by "Redundant reference to unused external results"
• KT-79317 [Wasm] Do not throw CCE for ExcludedFromCodegen declarations
• KT-78036 K/Wasm: generate a message with "expected" and "actual" types in case of CCE

Compiler

New Features

• KT-80461 K2: false positive NO_ELSE_IN_WHEN for complex sealed hierarchy
• KT-77676 K/N: enable typechecks and the casts optimization pass in debug mode by default
• KT-79185 Support local type aliases
• KT-80837 Warn about extension function with a context shadowed by member
• KT-80768 Warning on overloading by a superset of context parameters in class context
• KT-80031 Check spotbugs's @CheckReturnValue in Kotlin's unused return value checker
• KT-79380 Native: add performance measurement for the rest of backend phases
• KT-79381 Native: add performance measurement of LLVM phases
• KT-80222 Implement the prohibition of always-false is checks for definitely incompatible types
• KT-79295 Parse and build raw FIR from new short and full forms of positional destructuring with square brackets
• KT-74810 Support typealiased/mapped Java types in unused return value checker
• KT-71244 Incorporate existing @CheckReturnValue annotation(s) into Kotlin's unused return value checker
• KT-79922 Record 'MustUse/ExplicitlyIgnorable' state for overrides even in disabled RVC mode
• KT-79920 Store 'Explicitly ignorable' state of function/property in the metadata
• KT-79690 Implement a USELESS_ELVIS_LEFT_IS_NULL with elvis expression
• KT-79296 Implement/adapt diagnostics for new destructuring
• KT-79298 Report errors on new destructuring syntax in K1

Performance Improvements

• KT-81617 Native: casts optimizations pass explodes on deep nested loops
• KT-80554 Kotlin/Native: investigate performance hit from always-on llvm pass profiling
• KT-81340 K/N: severe compilation time degradation after turning on casts optimization pass
• KT-80370 Add NO_INLINE attribute to some of runtime functions
• KT-80167 K/N: condense the nodes and edges in DevirtualizationAnalysis constraint graph
• KT-79535 Revert incorrect SAM conversion enhancements brought to K2

Fixes

• KT-79979 K2: ClassCastException when overriding extension property with delegation
• KT-82590 ClassCastException when instantiating class with generics implemented by fun interface and lambda
• KT-78881 K2: False positive "Assigned value is never read" in composable function
• KT-79276 Dexing fails with "Cannot read field X because is null" with 2.2.0
• KT-79547 "UnsupportedOperationException: Not supported" with inlining and value classes
• KT-79442 "Multiple annotations of type kotlin.coroutines.jvm.internal.DebugMetadata": 2.2.0-Beta1 generates broken code with JVM default suspend methods in interfaces
• KT-80744 Kotlin failure on lambda with type parameter
• KT-81618 "Number of arguments should not be less than number of parameters" on JVM on Kotlin 2.3.0-Beta1
• KT-82869 Green-to-Red change in 2.3 after prioritizing non-suspend-function-type overloads
• KT-79611 "IllegalStateException: couldn't find inline method": Exception during incremental compilation
• KT-78895 Consider dropping isLocalInFunction and FirClassLikeDeclaration.isLocal
• KT-82040 Native: ClassCastException: PointerInputChange
• KT-81924 K2: "Cannot infer type for this parameter", "Overload resolution ambiguity between candidates"
• KT-80864 K2: Missing Val cannot be reassigned diagnostic for Java final fields (crashes in runtime with IllegalAccessError)
• KT-71420 Report error when reified type parameter is inferred to intersection type
• KT-79451 Rework approach to recursive types approximation
• KT-78413 Kotlin Debugger: value classes as context parameters have incorrect names in Variables View during debugging
• KT-82138 Debugger: Cannot evaluate JvmInline value class parameter
• KT-82381 ArrayIndexOutOfBoundsException while FirDiagnosticsCompilerResultsReporter tries to print code as part of a warning log
• KT-81068 Corrupted Unicode paths passed or used in the compiler
• KT-79783 KDoc parser: Links aren't rendered if the line has an indent of 4 or more
• KT-80549 Call of Java method with type parameter bounds: Expected FirResolvedTypeRef with ConeKotlinType but was FirJavaTypeRef
• KT-82132 False-positive type mismatch with -language-version 2.2
• KT-81988 K2: Any?.toString() causes NPE inside lambda with Java
• KT-81652 Native: ClassCastException: ApplicationForegroundStateListener.Companion
• KT-76479 Backend. JVM: Report errors on exposure of types in inline functions
• KT-82022 K/N: Unexpected "Annotation @JvmInline is missing on actual declaration" warning with value classes
• KT-80250 ISE: flow for PostponedLambdaExitNode not initialized - traversing nodes in wrong order?
• KT-76344 Drop language version 1.9 for non-JVM platforms
• KT-76343 Drop language version 1.8
• KT-80330 K2: NPE at org.jetbrains.kotlin.fir.resolve.calls.FirCallResolver.createResolvedNamedReference
• KT-80400 K2: AbstractMethodError on fun interface implementation inheriting from an interface compiled with -jvm-default=disable
• KT-9111 Improve diagnostic for call with access to outer class from nested class
• KT-78280 Implement the sourceless KtDiagnostics
• KT-74999 K2: KotlinNothingValueException within Extension Function
• KT-81254 "AssertionError: There should be at least one non-stub type to compute common supertype": Parser issue during generic type inference
• KT-53237 NI: Frontend ignores generic bound when inferring types
• KT-81186 Only allow local type aliases in REPL/scripts until full stabilization
• KT-80929 IC Native: Undefined symbols on ktor
• KT-81657 K2: put warning about "exposing package-private in internal" under experimental language feature
• KT-81241 Konanc exit while lowering org.jetbrains.kotlin.ir.util.IrUtilsKt.remapTypeParameters
• KT-74819 K2: False-positive overload resolution ambiguity for flatMap inside PCLA
• KT-81547 Stabilize DFA-based exhaustiveness
• KT-79274 Frontend implementation of name-based destructuring
• KT-79506 Contract for getter and setter doesn't work if a property is called from another module
• KT-58988 K2: Deprecate exposing package-private parameter of internal method
• KT-80711 IC Native: NPE during link on ktor
• KT-77727 Move some of the extra checkers to the default list
• KT-76136 Switch latest stable version in Kotlin project to 2.3
• KT-81257 Native: "Unexpected boolean predicate" when generating 'static_cache'
• KT-81525 Report REDUNDANT_SPREAD_OPERATOR on (*) instead of argument expression
• KT-81522 Fix Light Tree SPREAD_OPERATOR diagnostic positioning
• KT-77008 K2: Incorrectly force casting to a wrong type
• KT-78127 K2: Too precise inference for if/when with expected type in assignment
• KT-80208 K2: ClassCastException: "class java.util.ArrayList cannot be cast to class java.lang.Void" type inference picks Void for generic function
• KT-75797 Native: find a way to handle generates C bridges in inline functions
• KT-78819 K2: False positive ABSTRACT_MEMBER_NOT_IMPLEMENTED in KJK hierarchy
• KT-80003 Kotlin/Native: deprecate eager GlobalData initialization
• KT-79231 Inconsistent InnerClass entry flags for abstract inner enum
• KT-20677 Improve diagnostic about implicit default constructor absence for expected annotation class
• KT-81385 Missing error of nullable expression in class literal in case of reified type parameter
• KT-81251 Smartcast doesn't work for an effectively private inline function
• KT-81245 Automatic smart cast on properties with EBF is allowed on inlined property accessors
• KT-81222 Custom getter is allowed on a property with redundant EBF
• KT-80795 Wrong type cast is added for IMPLICIT_COERCION_TO_UNIT
• KT-81141 Fix FirUnsupportedArrayLiteralChecker to forbid array literals inside non-annotation contexts
• KT-81383 Return type of anonymous function used as run argument is incorrectly inferred to Nothing
• KT-80577 "Return type mismatch" for self-referential types used as generic parameters
• KT-75215 KDoc: references from @param tag are rendered as plain text
• KT-79887 K2 Compiler Internal Error in 'FirFakeOverrideGenerator.checkStatusIsResolved' Method
• KT-78125 false-negative shadowed contextual overload warning on local declarations
• KT-81198 Move type and type parameter annotations from jvm_metadata.proto to metadata.proto
• KT-81057 Wrong handling of boxing during redundant casts optimization
• KT-81191 K2: "null cannot be cast to non-null type ConeTypeParameterLookupTag" with invalid code
• KT-80285 IJ monorepo: broken compilation after 2.2.20-RC update
• KT-81115 Allow converting lambda with explicit parameter when assigning to variable of an extension function type
• KT-74588 Redundant checkNotNull intrinsics instructions for Java generic methods
• KT-78390 Unmute FusStatisticsIT.testKotlinxPlugins() after AtomicFU updates kotlin-metadata-jvm
• KT-79369 Forbid typealiasing for all compiler-required annotations
• KT-69294 K2: Report CONSTRUCTOR_OR_SUPERTYPE_ON_TYPEALIAS_WITH_TYPE_PROJECTION_ERROR instead of EXPANDED_TYPE_CANNOT_BE_INHERITED after switching to LV 2.2
• KT-81064 Wrong safe call null check handling during redundant casts optimization
• KT-80871 StackOverflowError on AnnotationTarget.TYPE
• KT-80908 K2: Compiling type annotation with self-annotated vararg fail with exception
• KT-81018 ISE "IR class for Foo not found" on missing dependency when lowering SAM constructor
• KT-80936 NON_PUBLIC_CALL_FROM_PUBLIC_INLINE : @PublishedApi doesn't work for fun interfaces
• KT-75748 StackOverflowError when reading array from metadata annotations
• KT-80606 KotlinIllegalArgumentExceptionWithAttachments when using property itself in explicit backing field initialization
• KT-80940 K2: Exception in FIR2IR with AnnotationTarget.TYPE with self-annotated non-vararg default argument and usage in child module
• KT-80538 KaFirDiagnostic.EmptyRange doesn't work in most of the cases
• KT-80524 Class is not abstract and does not implement abstract member when compiling with kotlinc-jklib
• KT-80597 Apply fix for CVE-2024-7254 to our fork of protobuf 2.6.1
• KT-80849 K2: ConstValueProviderImpl doesn't distinguish files with same name and package
• KT-80602 Exhaustiveness checker improvements for 2.3
• KT-80735 Support || return/throw shortcut in unsed return value checker
• KT-79651 Report a warning about an unused return value only on the function name
• KT-80719 False positive: "Redundant visibility modifier": when overriding protected methods as "public"
• KT-80434 K2: DSL marker doesn't work with lambda fields
• KT-80383 Getter without a body is allowed on a property with an explicit backing field
• KT-80446 Explicit visibility modifiers are allowed on EBF
• KT-80378 ClassCastException on callable reference to a property with EBF
• KT-80377 Fir2Ir: "Cannot determine expected receiver type" for callable reference to a property with EBF outside of class
• KT-80455 K2: StackOverflowError in when exhaustiveness checker on red code
• KT-72862 [Native caches] Umbrella for failing codegen/box tests for corner cases in synthetic accessors
• KT-20278 NO_TYPE_ARGUMENTS_ON_RHS: Confusing diagnostic for inner class of generic outer class
• KT-80418 Property with EBF with functional type isn't resolved if its type is Any
• KT-80469 Functional type from property is always used for explicit backing field
• KT-80535 Missing INITIALIZER_TYPE_MISMATCH for EBF
• KT-80445 Private visibility is possible for a property with EBF
• KT-80164 Move name generation for unnamed context parameters to frontend
• KT-80684 Line breaks are lost in multi-line diagnostic messages since 2.3.0
• KT-78112 RETURN_VALUE_NOT_USED is reported for local function even if it isn't marked with annotation in CHECKER mode
• KT-48311 Incorrect LINENUMBER after if with a suspend call
• KT-80688 Bad SourceDebugExtension caused by enhanced coroutines debugging
• KT-73851 Native: compilation fails with ClassCastException with genericSafeCasts=true
• KT-77593 Add a warning when @IgnorableReturnValue is inconsistent between expect/actual functions
• KT-79386 Confusing error message when named parameters are used for java method calls
• KT-80600 K2: Private and final modifiers are allowed on setter of open delegated property
• KT-77101 Invoke on callable reference is considered ignorable
• KT-79923 Remove lookup of @IgnorableReturnValue annotation from FirReturnValueOverrideChecker
• KT-80517 Synthetic kotlin.Any members in data classes are missing @MustUseReturnValue
• KT-80194 VAR_TYPE_MISMATCH_ON_OVERRIDE: doesn't mention the inferred type
• KT-80484 K2: ClassCastException due to fake source for implicit lambda parameter (RedundantNullableChecker)
• KT-80592 UninitializedPropertyAccessException when anayzing annotations on members of anonymous classes
• KT-80399 Anonymous Kotlin class incorrectly warns about deprecated java override despite '@Deprecated' annotation
• KT-79610 Adding CocoaPod to Kotlin/Native MPP triggers IR serialization failure and commonizer errors
• KT-79951 Infinite loop in parsing incomplete full form destructuring
• KT-79866 kotlinc 2.2.0 silently emits 'NonExistentClass' instead of reporting an error
• KT-79777 Argument type mismatch on value of complex type with a captured raw type argument
• KT-78664 False positive VARIABLE_NEVER_READ and ASSIGNED_VALUE_IS_NEVER_READ on function type variable with splited declaration and assignment
• KT-79496 False positive "when must be exhaustive" in triangle interface/class hierarchy
• KT-79774 KtDestructuringDeclaration.getLPar & getRPar are broken
• KT-80391 K2: Only one context parameter is mentioned in the [NO_CONTEXT_ARGUMENT] diagnostic
• KT-79785 ktypew:kotlin.collections.List already exists error using Swift Export
• KT-78879 "Sealed types cannot be instantiated": Can't instantiate Java-defined sealed Class from Kotlin
• KT-21598 Extension is shadowed by member should not be reported when member is deprecated with HIDDEN level
• KT-79622 FUNCTION_EXPECTED: Misleading 'expression cannot be invoked as a function' when inaccessible with private lambda
• KT-80255 [EXTENSION_FUNCTION_IN_EXTERNAL_DECLARATION] can be attached to the receiver type of a functional type
• KT-79816 Java Interfaces implemented by delegation have non-null return checks
• KT-80177 Improve message of RECEIVER_SHADOWED_BY_CONTEXT_PARAMETER in case of member extension
• KT-79770 There is no RECEIVER_SHADOWED_BY_CONTEXT_PARAMETER if the usage of fun is from inside the class
• KT-79430 False positive EXTENSION_SHADOWED_BY_MEMBER on overridden member extension
• KT-62934 Incorrect line mapping inside inline lambda after non-local return
• KT-79545 K2: no error on crossinline lambda usage in anonymous object base constructor call
• KT-79643 HAS_NEXT_FUNCTION_AMBIGUITY and NEXT_AMBIGUITY diagnostics are always ignored in favor of HAS_NEXT_FUNCTION_NONE_APPLICABLE and NEXT_NONE_APPLICABLE
• KT-79327 Modifier 'private' is not applicable to 'value parameter' is reported for context parameters
• KT-76453 K2 IDE: autocomplete freeze
• KT-77182 A function in a file annotated with @file:MustUseReturnValue doesn't produce a warning when it is used from compiled code
• KT-78541 Jspecify: Unsound platform type despite @NullMarked for an override with a generic-subclass return type
• KT-79672 'when expression must be exhaustive' even after using 'require()'
• KT-71306 K2 IDE / Kotlin Debugger: “Cannot find local variable 'block' with type kotlin.jvm.functions.Function0” on evaluating lambda arg inside inline function
• KT-76991 K2 IDE / Kotlin Debugger: ISE “Couldn't find declaration file for” on evaluating local fun when the scope has also inline fun from another file call
• KT-79877 K2 IDE / Kotlin Debugger: failed evaluations of a code fragment capturing local data class
• KT-77401 [FIR] ParameterNameTypeAttribute.name doesn't support @ParameterName with compile-time constant property argument
• KT-79682 Fix partially uninitialized locals after coroutine spills insertion
• KT-79562 NPE when passing non-lambda argument of nullable non-suspend function type into function that accepts nullable suspend function type
• KT-79693 NotImplementedError: An operation is not implemented: Unknown file with KMP separate compilation
• KT-79662 Unused return value checker doesn't work for com.google.errorprone.annotations.CheckReturnValue
• KT-79781 Missing MISSING_DEPENDENCY_CLASS when using type alias with inaccessible RHS
• KT-77772 Only report exposed type on qualifier if it's resolved to an object
• KT-79765 K2. Do not report ignore return value for unresolved reference
• KT-79017 False negative REDECLARATION on private nested class
• KT-79519 Nested type alias is unreachable from another module
• KT-72039 StackOverflowError on calling keySet on a Kotlin subclass of Java subclass of ConcurrentHashMap
• KT-75843 K2: incorrect line numbers in an if-expression with a super-call
• KT-77504 Add a warning when @IgnorableReturnValue is inconsistent on overrides
• KT-78389 Perform version 2.3 boostrapping
• KT-79092 Crash on default argument in function in fun interface
• KT-77729 Package-level @NullMarked does not work when kotlinc sees .java source files
• KT-79013 False negative NOT_YET_SUPPORTED_IN_INLINE on inline local functions inside inline functions
• KT-79139 False positive CONFLICTING_OVERLOADS for context parameters instead of receivers
• KT-35305 Address the overload conflict resolution between unsigned and non-primitive types
• KT-42096 No diagnostic reported on inline modifier on an enum entry
• KT-79355 Failed to fix the problem of desugared inc with new reverse implies returns contract
• KT-79277 Implies returns contract doesn't affect the return type of the function if it is in the argument position
• KT-79271 Implies returns contract doesn't impact exhaustiveness
• KT-79218 SMARTCAST_IMPOSSIBLE for top‑level extension‑property getter despite returnsNotNull contract
• KT-79220 returnsNotNull contract ignored on extension function with nullable receiver
• KT-79354 IllegalStateException: Debug metadata version mismatch. Expected: 1, got 2 with compiler 2.2.20-Beta1 and stdlib 2.2.0
• KT-77986 K2: False negative: "Local classes are not yet supported in inline functions"
• KT-79456 Redeclaration conflict checks of private top-level classifiers rely on an incorrect containing file
• KT-79125 RVC full mode: delegated interfaces are not checked
• KT-63720 Coroutine debugger: do not optimise out local variables
• KT-78595 type variable leak on a generic property as a call argument given an unstable smart cast
• KT-79076 'IllegalStateException: Cannot serialize error type: ERROR CLASS: Uninferred type' with Exposed column using recursive generic type
• KT-59807 K2: Replicate the MUST_BE_LATEINIT logic from K1
• KT-76782 K2: Incorrect resolve into unrelated invoke operator with wrong diagnostic
• KT-78066 TYPE_PARAMETER_OF_PROPERTY_NOT_USED_IN_RECEIVER error message does not account for context parameters
• KT-76065 Drop JavaTypeParameterDefaultRepresentationWithDNN feature
• KT-77808 Inference: recheck the code about DNN-related hacks
• KT-24202 NOTHING_TO_OVERRIDE if super-class reference misses generic arguments
• KT-78909 K2: Missing diagnostics [CYCLIC_INHERITANCE_HIERARCHY] for recursive class inheritance leads to StackOverflowError
• KT-75969 java.lang.IllegalArgumentException: source must not be null on red code
• KT-76902 Omit type-use annotations from diagnostics
• KT-17460 Diagnostics and intention on suspend function that is overriden with non-suspend one.
• KT-56665 K2: false positive RECURSIVE_TYPEALIAS_EXPANSION
• KT-78932 Contracts are allowed for open and overridden property accessors
• KT-77203 FIR: Consider adding destructured type to all COMPONENT_FUNCTION_* diagnostics
• KT-77685 "IllegalArgumentException: Sequence contains more than one matching element"
• KT-78452 Drop redundant frontend structures after fir2ir conversion
• KT-70507 Should parentheses prevent from plus/set operator desugaring?

Compose compiler

New features

• 98d3907 Introduce a compose group analysis module that produces a proguard/R8 mapping from group keys in bytecode.

Fixes

• b/419049140 Disabled memoization in try blocks
• KT-81081 Generate Compose-specific proguard mappings when Compose compiler plugin is applied.
• b/431025881 [Compose] Clean up runtime version checker
• b/365922168 Add java.util.Locale to the list of known stable classes
• b/407549020 Introduce a registry of known stable markers
• b/417989445 Added a diagnostic to restrict usages of runCatching in
  @Composable functions
• KT-80294 Fix crash with inline @Composable function reference
• b/430140896 Fix IrSourcePrinter output for when branch check and typechecks
• CMP-9167 iOS: Platform declaration clash: The following functions have the same IR signature

IDE. Gradle Integration

• KT-46273 MPP: Don't fail import for case of missed platform in source set structure
• KT-46417 [UNRESOLVED_REFERENCE] For project to project dependencies of native platform test source sets
• KT-44845 After update to Kotlin 1.4.30 all external dependencies is unresolved in IDE with kotlin.mpp.enableGranularSourceSetsMetadata=true
• KT-46142 K/N distribution is unavailable from IDE with multiplatform hierarchical project structure enabled

IR. Actualizer

• KT-77337 IrNoExpectSymbolsHandler finds expect class reference after enabling annotation traversal in IR
• KT-80002 Investigate the need for map copying in IrCommonToPlatformDependencyExtractor.kt
• KT-80131 KMP Separate Compilation: No override for FUN IR_EXTERNAL_DECLARATION_STUB name:
• KT-80064 KMP Separate Compilation: ClassCastException: class org.jetbrains.kotlin.ir.symbols.impl.IrTypeAliasSymbolImpl cannot be cast to class org.jetbrains.kotlin.ir.symbols.IrClassSymbol
• KT-80051 KMP Separate Compilation: Actualization of common dependencies failed on 'PROPERTY FAKE_OVERRIDE name:modCount visibility:protected modality:FINAL [fake_override,var]'
• KT-79998 KMP Separate Compilation: java.lang.IllegalStateException: No override for FUN IR_EXTERNAL_DECLARATION_STUB name:

IR. Inlining

New Features

• KT-70360 KLIBs: Uniformly handletypeOf() calls at 1st/2nd stages of compilation

Performance Improvements

• KT-69497 Crossinline lambda is allocated on K/N & JS

Fixes

• KT-78673 Make fakeOverrideLocalGenericBase not using red code
• KT-78537 [Inliner] Incorrect KFunction.name of a reference to inlined local function
• KT-74892 Investigate passing inline lambda as argument of another inline function
• KT-81673 False warnings about ABI change in dependencies in library mode in 2.3.0-Beta1
• KT-81713 [Inliner] Compilation of inline function with recursive call applied to TODO() fails with an internal error
• KT-80653 [IR Inliner] Space: "Local declarations should've been popped out by this point"
• KT-78392 CommonPrefix: Add a way of stopping execution when one of the phases is unsuccessful
• KT-80927 [Native] Review intrinsics with PublishedApi
• KT-81070 [Inliner] kotlin/Any is unbound
• KT-80628 KLIB inliner: Not enough information about the "full" mode
• KT-69516 Double-inlining for Native: Enable visibility checks after 1st phase of inlining
• KT-79334 Unify intrinsics used on 1st phase of IR inliner in KLIB-based compilers
• KT-80610 KLIB inliner: Always apply cross-module inlining to pre-processed inline functions
• KT-80565 KLIB Inliner: Add a special annotation to prohibit inlining of marked inline functions in stdlib on 1st compilation phase
• KT-80883 [Inliner] Run pre-serialization lowerings in all testrunners
• KT-77876 IrVisibilityChecker: Different set of exceptions for 1st and 2nd compilation stages
• KT-80693 [IC] Split IC invalidation tests for cross-module IR Inliner
• KT-79718 KLIB inliner: Emit warning on generation of public synthetic accessor when running in "explicit API mode"
• KT-80226 [IR Inliner] Generate constructor accessors as constructors, not static functions
• KT-80692 [IC] Split IC invalidation tests for intra-module IR Inliner
• KT-77103 [Inliner] IrLocalDelegatedProperty was not serialized, while its symbol and IrRichPropertyReference were.
• KT-80537 The expected error is not emitted from FirJsKlibSyntheticAccessorsTestGenerated and NativeKlibSyntheticAccessorsTestGenerated
• KT-78903 Unify codegen/boxInline tests with codegen/box
• KT-78989 Add missing PL tests for inline functions/property accessors
• KT-79771 kotlinx-coroutines-core: Public synthetic accessor generated with enabled KLIB IR inliner
• KT-79680 IrConstructorSymbolImpl is unbound in lambdaWithoutNonLocalControlflow.kt
• KT-70849 Ensure correct debug info for intra-module IR inlining on the first compilation phase
• KT-79800 JS BE errors with default values when IR inliner is enabled
• KT-79352 Remove excessive validations from ValidateAfterAll... on the first stage
• KT-76599 Migrate IrValidationAfterInliningAllFunctionsPhase to the first stage of compilation
• KT-78245 Synthetic Accessors incorrectly copies default values
• KT-72594 [JS][Native] Add IrInliningFacade to test runners

IR. Interpreter

• KT-72356 K2 Native: IllegalStateException when annotation has the same source range as a constant in another file
• KT-72881 K2: incorrect empty array as annotation argument when parameter has default value

IR. Tree

Fixes

• KT-79371 Fix handling of broken SAM conversion in PL with enabled Rich References
• KT-81952 "IllegalStateException: Callable reference with vararg should not appear at this stage" for callable references to functions with generic vararg parameters
• KT-79739 Static synthetic accessors inside generic classes access its type parameters
• KT-78100 Track and annotate internal annotations with @PublishedApi to enable annotation visibility validation
• KT-80825 Drop IrSerializationSettings.reuseExistingSignaturesForSymbols setting
• KT-79807 Broken IR tree invariants in IrReplSnippet after FIR2IR
• KT-77819 [IR] Fine-tune IrValidator's run after Fir2IR and IR plugins
• KT-70160 Remove IrDeclaration.parents after Anvil update
• KT-80454 LocalDeclarationsLowering: Clean-up the dead code
• KT-80819 Rework IrFileValidator to use Hashmap instead of ClassValue
• KT-80516 Kotlin-like IR dump: Don't render tailrec as lateinit
• KT-78856 Refactor LocalDeclarationsLowering to split it in smaller parts
• KT-79439 KLIB stdlib symbols loading: Split the result of merging of IrBuiltins with BuiltinSymbolsBase hierarchy into two parts (for 1st & 2nd phases)
• KT-79437 KLIB stdlib symbols loading: Drop loading functions from IrBuiltins and migrate usages to SymbolFinder functions and lazy filtering
• KT-79569 Unexpected error during DFG phase in Native due to PL issue with SAM conversion represented by rich reference
• KT-76601 IrValidatorConfig should have all checks disabled by default
• KT-69662 Deduplicate function createTemporaryVariable
• KT-79440 KLIB stdlib symbols loading: Drop BuiltinSymbolsBase from plugin API
• KT-78960 [FO] Limit static fake overrides generation for static functions
• KT-76813 IR validator: not all symbols/references are visited

JVM. Reflection

• KT-79020 Suspend lambdas return type is shown as ??? in reflection
• KT-81967 isSubtypeOf: ClassCastException: CapturedKType cannot be cast to class AbstractKType
• KT-76521 Reflection: change KType representation to avoid dependency on K1
• KT-81619 Reflection: Function supertype of a FunctionN class has flexible type in new implementation
• KT-74529 Context parameters support in reflection
• KT-80901 Reflection: incorrect translation of raw types in the new implementation
• KT-74624 Reflection: KClassifier.createType(...) ignores annotations parameter
• KT-80203 Reflection: provide a way to use legacy K1-based implementation
• KT-80236 Reflection: KType.toString for raw types no longer renders "(raw)"
• KT-79206 Reflection: suspend functional type classifier is null

JavaScript

New Features

• KT-80401 Kotlin/JS support for default export in generated JavaScript
• KT-79284 Use BigInt64Array for LongArray
• KT-79222 K/JS: Allow using Long in exported declarations
• KT-79394 Add the possibility to write common external declarations between JS and WasmJS targets

Performance Improvements

• KT-57128 KJS: Use BigInt to represent Long values in ES6 mode

Fixes

• KT-79928 Allow JsModule/JsNonModule/JsQualifier invocation on per-entity level
• KT-79514 java.lang.IllegalStateException: IrClassSymbolImpl is unbound. Signature: kotlin.js/Promise|null[0] on running jsBrowserTest
• KT-82005 KJS: "TypeError: callAgent.jsonRpcCall_ij3z26_k$ is not a function" after code change in 2.3.0-Beta1/2
• KT-79359 Kotlin/JS: Suspending function doesn’t return Unit on es2015
• KT-79089 KJS: Could not load reporter / Cannot find module 'mocha' when running jsNode tests
• KT-56281 KJS: Can't export suspend functions
• KT-79926 Wrong export of interfaces with companions with ES Modules
• KT-80168 Allow @JsStatic inside interface companions
• KT-70222 Remove legacy JS BE-related CLI flags
• KT-81424 Kotlin/JS: Cannot Get / in a simple running application
• KT-80873 KJS: Stdlib requires ES2020-compatible JS engine due to BigInt type literal
• KT-81066 Wasm, JS: Remove redundant logging in compiler output
• KT-72833 KJS: Source maps have incorrect sources paths in per-file
• KT-74055 KJS: @JsPlainObject adds JS code even if marked interface is not used
• KT-72474 KJS: @JsPlainObject doesn't honour -XXLanguage:+JsAllowInvalidCharsIdentifiersEscaping
• KT-79644 BigInt enabled for ES 2015 despite being an ES 2020 feature
• KT-52771 KJS: Pair should be exported to JavaScript
• KT-79704 Unify variance rendering between JS and other backends
• KT-69297 Deprecate referencing inlineable lambdas in js() calls
• KT-80086 [k/js] Resolving imported string literals
• KT-79066 [Kotlin/JS] jsNodeTest fails with SyntaxError when a test file has @file:JsExport and useEsModules() is enabled
• KT-77385 Investigate partial linkage problems for JS HMPP tests
• KT-79628 Remove IR nodes from ExportModel
• KT-79916 K/JS: "Uncaught TypeError" when using 'Xes-long-as-bigint' in compose-html
• KT-79050 KJS / IC: "Unexpected body of primary constructor for processing irClass"
• KT-79977 KJS: Long.rotateLeft returns incorrect result when BigInts are enabled
• KT-78831 AbstractFunctionReferencesLowering: fragile fake override generation
• KT-52230 KSJ IR: Applying identity equality operator to Longs always returns false
• KT-6675 KotlinJS: toInt() on external Long throws error
• KT-79184 K/JS: Further intrinsify BigInt-backed Long operations

Klibs

New Features

• KT-80761 K2: [K/N] Should reported klib usage include inheritance

Performance Improvements

• KT-80861 [Klib] Deduplicate IrFileEntry.name
• KT-80866 [Klib] Optimize size of IrFileEntry.line_start_offset
• KT-80438 Uncached KlibMetadataClassDataFinder.findClassData

Fixes

• KT-64237 Klib metadata: migrate to using the common annotations instead of klib-specific extensions in the compiler
• KT-80099 KLIB resolver: Could not find file because of missing klib extension in resolved symlink path
• KT-80999 Reuse existing IrKotlinLibraryLayout in KotlinLibrary for reading pre-processed functions
• KT-80290 Remove if and TODO in countInAsInlinedLambdaArgumentWithPermittedNonLocalReturns
• KT-80298 K/N: one-stage compilation is broken
• KT-79958 KLIB tool fails to render IR if there is IrErrorType in a lirbrary
• KT-75241 Move ExperimentalLibraryAbiReader to a publishable artifact
• KT-76260 Make IrRichCallableReferencesInKlibs lang feature stable in LV=2.3
• KT-61552 [PL] IndexOutOfBoundsException in SAM conversion with substituted function
• KT-74417 Deduce the metadata version based on LV in KLIB-based backends
• KT-75980 [Klib] Reduce serialized size of IrFileEntries for sparse usage of another source files
• KT-73826 Deduplicate IrFileEntry that is serialized inside IrInlinedFunctionBlock

Language Design

• KT-76926 Allow return in expression bodies if return type is specified explicitly
• KT-78866 Show an error for implicit receiver shadowed by context parameter
• KT-81561 Update nested type aliases KEEP to reflect local type aliases support
• KT-81015 Stabilize nested type aliases
• KT-32619 JS: return Promise when continuation is not provided
• KT-78976 Decide if K2 should support local functions inside of local inline functions
• KT-79308 Ability to actualize empty interfaces as Any
• KT-48872 Provide modern and performant replacement for Enum.values()
• KT-28850 Prohibit protected visibility in final expected classes

Libraries

New Features

• KT-81092 Uuid: support generation of version 7 uuids with a given timestamp
• KT-78463 Annotate wasm and JS targets of kotlin-stdlib with @IgnorableReturnValue when appropriate
• KT-74444 EnumEntries type should implement RandomAccess
• KT-78462 Annotate kotlin-stdlib-jvm with @IgnorableReturnValue where appropriate

Performance Improvements

• KT-72111 Change Duration.parseOrNull logic to not throw exceptions internally

Fixes

• KT-82901 Long.MIN_VALUE.milliseconds produces invalid denormalized Duration
• KT-81995 K/N: CMP: Undefined symbol _kfun:kotlin.time.Duration.kotlin.time.Duration
• KT-56822 Deprecate Number.toChar() with error deprecation level
• KT-81078 Increase kotlin.io.createTempDir and createTempFile deprecation level to ERROR
• KT-74493 Deprecate String.subSequence(start, end) with error and drop it in the future
• KT-79192 Increase InputStream.readBytes(Int) deprecation level to HIDDEN
• KT-80778 Stabilize kotlin.time.Clock and kotlin.time.Instant
• KT-81043 String.toBigDecimalOrNull rejects strings accepted by String.toBigDecimal
• KT-81477 Uuid.Companion.generateV* are missing SinceKotlin annotation
• KT-81478 FileTreeWalkTest.withDirectoryFilter fails on Windows
• KT-74411 Introduce Uuid.generateV4() and generateV7()
• KT-80530 Annotate Kotlin/Native stdlib with must-use value/@IgnorableReturnValue when appropriate
• KT-79791 Duration.parse incorrectly handles negative decimal seconds in ISO-8601 format
• KT-80619 [KLIBs] Enable intra-module inliner in stdlib & kotlin-test
• KT-76773 stdlib: contextOf's type argument can be inferred via contextOf's context argument
• KT-71822 Intersection with (subtraction from) an identity set may produce incorrect results
• KT-80431 Remove suppression of "ACTUAL_ANNOTATIONS_NOT_MATCH_EXPECT" from stdlib
• KT-80605 Rename MustUseReturnValue -> MustUseReturnValues
• KT-69947 KLIB stdlib: All intrinsics that can be used in KLIBs with inlined IR must be included in stdlib ABI dump
• KT-59044 Improve various aspects of TimeSource documentation
• KT-80544 Mark controversial path extensions (like .deleteRecursively()) as ignorable
• KT-80603 K/N and K/Wasm: \p{N} category is not supported
• KT-80661 ArrayDeque.lastIndexOf may return -1 for an element present in the deque
• KT-80390 ArrayDeque.indexOf(null) wrongly returns 0 after removals
• KT-79094 Change signature of assertFailsWith or make lambda excluded otherwise
• KT-72028 Incorrect parameters order in IndexedValue documentation
• KT-80130 [stdlib] Commonize AssociatedObjects in commonNonJvmMain
• KT-80107 [stdlib] Move CancellationException to commonNonJvmMain
• KT-80179 Investigate why StringBuilder.length is not enhanced automatically
• KT-80046 Increase test coverage of Duration.parse[IsoString][OrNull] methods
• KT-76459 Remove comments about sorting stability in unsigned-type arrays
• KT-79489 Generate Stdlib API reference for webMain source set
• KT-78243 Drop JS- and Wasm-specific IrLinkageError classes
• KT-79108 Remove the default argument for linkageError from kotlin.js.getPropertyCallableRef
• KT-79130 K/JS: Remove bodies from intrinsified Long methods
• KT-79239 K/Wasm: elementAt extension function of Array/PrimitiveArray/UnsignedArray does not throw IndexOutOfBoundException on incorrect index
• KT-79256 K/Wasm: MatchResult.groups raises a trap on invalid group index
• KT-57317 Repack EnumEntries from stdlib into the compiler

Native

• KT-80620 Bump minimal iOS and tvOS supported versions to 14.0
• KT-80624 Bump minimal watchOS supported versions to 7.0
• KT-79384 K/N: Application Not Responding: Thread Deadlock
• KT-80536 Native: DependencyDownloader seems to have no timeout

Native. Build Infrastructure

• KT-80147 Set proper LV and AV for kotlin-native/performance/buildSrc
• KT-79474 Kotlin/Native: fix breakpad build
• KT-79215 Kotlin/Native: fix distInvalidateStaleCaches on windows

Native. C and ObjC Import

• KT-79752 Native: make cinterop generate CCall.Direct annotations
• KT-79753 Native: support CCall.Direct calls in the compiler
• KT-81312 Native: when -Xccall-mode direct is used, mark unsupported declarations with unresolvable symbol name instead of @Deprecated(ERROR)
• KT-79571 Xcode 26 beta 4: CInteropKT39120TestGenerated.testForwardEnum failed
• KT-80838 Cinterop fails with an error when Compilation works fine
• KT-49034 Kotlin/Native: cnames.structs.Foo resolves into wrong declaration

Native. ObjC Export

• KT-81906 Normalize CFBundleIdentifier when producing Apple framework
• KT-78810 [ObjCExport] Enable explicit ObjC block parameter names by default
• KT-80271 ObjC/Swift Export: Remove Native platform Cloneable checks
• KT-78604 Consider not inheriting KlibScope from KaScope
• KT-79767 ObjCExport: private companion must not be exposed
• KT-79724 ObjCExport: extensions order
• KT-79548 ObjCExport: mangling difference between K1 and K2 when translating KotlinDurationCompanion
• KT-79475 ObjCExport: invalid property getter translation
• KT-79346 ObjCExport: Any method overrides
• KT-78871 ObjCExport: translation of keyword release with parameter generates invalid header

Native. Runtime. Memory

• KT-75918 Native: Deprecate -Xallocator=std
• KT-80678 Native: pagedAllocator=false sweep is slow
• KT-75916 Native: Enable sanitizer support with pagedAllocator=false

Native. Swift Export

Fixes

• KT-81355 Swift Export: Introduce a flag to turn off coroutines export
• KT-80969 Swift Export: Call suspend function as async on swift side
• KT-80111 Swift Export Build Fails Due to Errors in KotlinStdlib.swift
• KT-80884 Swift Export: support async in SIR
• KT-80185 Swift Export: IllegalArgumentException – Collection contains more than one matching element
• KT-79889 K/N: swift-export fails under several different conditions
• KT-79518 Swift export: represent kotlin.Any as swift.any
• KT-78603 Do not inherit SirAndKaSession from KaSession
• KT-79227 Swift Export: Fix First Release Issues
• KT-79521 '_CoroutineScope' is inaccessible due to 'internal' protection level
• KT-79181 Swift Export Fails When Using T: Comparable Generic Constraint in Kotlin Classes

Tools. Ant

• KT-75875 Remove Ant support

Tools. BCV

• KT-80313 Add ability to generate dump from jar files [ABI Tools]

Tools. Build Tools API

New Features

• KT-78194 BTA: port the JVM prototype to the new design
• KT-79409 BTA: Support removed compiler arguments properly
• KT-78193 BTA: Implement core infrastructure according to the new design
• KT-78196 BTA: implement API adapter for the prototype implementation
• KT-77999 BTA: Generate BTA options from compiler arguments descriptions

Fixes

• KT-75357 CompilationService.loadImplementation(loader) Expects a ClassLoader, but Fails if its not a URLClassLoader
• KT-73090 Gradle 8.11 kotlin compilation fails when run with -Pkotlin.compiler.runViaBuildToolsApi=true
• KT-81321 Deprecate old BTA prototype API
• KT-81602 BTA: rename KotlinToolchains.jvm @JvmName for a more Java-friendly API
• KT-75356 Failing to pass a -d argument causes Build Tools API to NPE
• KT-81130 BTA: using KotlinVersion from stdlib in the API breaks when using isolated classloader
• KT-78195 BTA: migrate the test infrastructure from the prototype to the new design

Tools. CLI

• KT-81077 Add JVM target bytecode version 25
• KT-79867 CompilerConfiguration.configureSourceRoots puts obfuscated file paths instead of ones passed on classpath to CLIConfigurationKeys.CONTENT_ROOTS
• KT-80348 Expose 'XXLanguage' compiler argument as a normal argument
• KT-80428 KMP Separate Compilation: Handle friend dependencies
• KT-74590 Deprecate -Xjvm-default in favor of -jvm-default
• KT-80349 KMP Separate Compilation is enabled on non-KMP compilations
• KT-79982 Fix description of -Xjspecify-annotations
• KT-79403 Improve generator for deprecated CLI arguments
• KT-75968 Set proper lifecycle for all existing compiler arguments
• KT-79293 Create Language Features and compiler argument with parameter for new destructuring features

Tools. Commonizer

• KT-49735 [Commonizer] :commonizeNativeDistribution fails for projects with two or more same native targets
• KT-47523 MPP: Unable to resolve c-interop dependency if platform is included in an intermediate source set with the only target
• KT-48118 Commonized c-interop lib is not attached to common main source set
• KT-46248 MPP: Compile KotlinMetadata fails with Unresolved reference if only one native platform from shared source set is available

Tools. Compiler Plugin API

• KT-82563 Improve compiler error messages to identify incompatible plugins causing compilation failures
• KT-55300 Provide a mechanism to describe ordering and dependencies for compiler plugins
• KT-82099 Compiler plugin ordering has no effect
• KT-74867 LLFirIdePredicateBasedProvider matches local classes when it shouldn't
• KT-52665 Deprecate ComponentRegistrar
• KT-75865 Provide an API for setting the file name for the file with top-level declarations generated by a plugin

Tools. Compiler Plugins

New Features

• KT-81091 [DataFrame] Receivers from FirExpressionResolutionExtension are not resolved in CodeFragment

Fixes

• KT-64339 Symbol Light Classes: No Arg compiler plugin generates synthethic constructor which is not seen from light classes
• KT-80429 Power Assert with "Run test using: IntelliJ": NoClassDefFoundError (org.jetbrains.kotlin.kotlinx.collections.immutable.ExtensionsKt) during compilation
• KT-79319 Lombok: NullPointerException on mvn compile when importing Java constants
• KT-81348 Incorrect bytecode mentioning error class/package is generated by kotlinx-serialization when private serializer in another module is not accessible
• KT-80944 FirUserTypeRefImpl cannot be cast to class FirResolvedTypeRef in maven project
• KT-80815 NoArg compiler plugin: Promote NO_NOARG_CONSTRUCTOR_IN_SUPERCLASS diagnostic from warning to error
• KT-80822 False positive NO_NOARG_CONSTRUCTOR_IN_SUPERCLASS reported for a class with explicit noargs constructor already present
• KT-53122 Constructors generated with NoArg have no @Metadata and are invisible for the frontend
• KT-74687 Kotlin Lombok: False positive when calling builder on Java record
• KT-80419 Remove bundled jetbrains annotations from kotlin-dataframe-compiler-plugin
• KT-79245 [AtomicFU] Drop K1/JS- and K1/Native-specific testrunners
• KT-79197 DataFrame: Cannot find local variable 'this@df' with type Scope0
• KT-73865 Incorrect type is generated for irPropertyReference during K/N transformation

Tools. Compiler plugins. Serialization

• KT-70345 Promote COMPANION_OBJECT_IS_SERIALIZABLE_INSIDE_SERIALIZABLE_CLASS diagnostic to error
• KT-79695 Serialization does not exclude field-less properties in 2.2.20-Beta2
• KT-79246 [Serialization] Drop K1-specific testrunners

Tools. Gradle

New Features

• KT-78199 Gradle: Migrate JVM compilation in KGP to the new BTA
• KT-45161 Gradle: Support registering generated sources with the Kotlin model
• KT-71602 Introduce KotlinTopLevelExtension

Fixes

• KT-67290 Deprecate usage of HasKotlinDependencies inside KotlinCompilation
• KT-80950 KGP breaks configuration cache when signing plugin with GnuPG is applied
• KT-64211 Provide support for the kotlin.internal.compiler.arguments.log.level property while running via build tools api
• KT-81719 Do not register swift export related configurations when it's not required
• KT-78741 Add FUS analytics for klib cross-compilation
• KT-75449 Update deprecation of KotlinJsTestFramework#createTestExecutionSpec
• KT-64273 Gradle: remove symbols deprecated after KT-54312
• KT-74915 Make ExtrasProperty.kt internal
• KT-64992 Remove KotlinCompilation.source
• KT-82068 Workaround iOS Simulator start failure in IT
• KT-79482 Report webMain / webTest usage in FUS metrics
• KT-81199 Deprecate "org.jetbrains.kotlin.android" plugin
• KT-82244 Conflicting warnings when using AGP 9.0.0-alpha with built-in Kotlin disabled
• KT-81161 Gradle plugin api reference: compiler arguments types are not available
• KT-70251 Gradle: hide compiler symbols in KGP
• KT-81837 Run integration tests against AGP 8.13
• KT-77457 Compile against Gradle API 9.0
• KT-79238 Bump minimal supported AGP version to 8.2.2
• KT-75869 KGP JS - Update deprecated constructors
• KT-76720 Raise deprecation level to error for Kotlin*Options properties
• KT-79047 Gradle compileKotlin fails with configuration cache
• KT-81415 BTA: Duplicate daemons when compiling JVM + JS in KGP
• KT-80763 Add redirect link to error message when 'org.jetbrains.kotlin.android' plugin is used with built-in Kotlin
• KT-81038 Gradle: remove support for properties disabling precise task outputs backup
• KT-80808 Warning from kotlin-dsl with kotlin("jvm") on Gradle < 9.0 doesn’t suggest updating Gradle
• KT-80875 Gradle: runToolInSeparateProcess may fail on Windows with too long command line
• KT-79851 Emit an actionable warning/error on unsupported AV/LV configured by kotlin-dsl
• KT-77458 Run Gradle integration tests against Gradle 9.0
• KT-80172 Error message changes depending on the order of applying 'org.jetbrains.kotlin.android' and 'AGP' 9.0+ with built-in Kotlin plugin
• KT-76177 Remove deprecated classpath snapshot task inputs
• KT-79339 Remove additionalMetadata from compiler options DSL
• KT-73478 Add module level description
• KT-80083 KGP IT: fix tests on Windows
• KT-79034 Automatically disable cross compilation if it's not supported on the host
• KT-79408 A lot of errors files are created when compile Kotlin
• KT-78827 Rewrite Gradle compiler options DSL generator

Tools. Gradle. BCV

• KT-80687 Add description to Gradle tasks [ABI Validation]
• KT-80621 Move Gradle tasks into suitable groups [ABI Validation]
• KT-78625 Kotlin's built-in BCV generates empty .api files

Tools. Gradle. Compiler plugins

• KT-81827 Add a switch for mapping file tasks in Compose Gradle plugin

Tools. Gradle. JS

Fixes

• KT-79921 Web Tooling Gradle API does not respect webpack reconfiguration
• KT-81009 K/JS, Wasm: Promote deprecation of NPM and Yarn package manager internal functions
• KT-76019 Wasm/JS: Promote phantom-js for Karma deprecation to ERROR
• KT-81005 K/JS, Wasm: Promote deprecation of ExperimentalWasmDsl to Error
• KT-81010 K/JS, Wasm: Promote deprecation of internal JS functions to Error
• KT-81008 K/JS, Wasm: Promote deprecation of ExperimentalDceDsl to Error
• KT-81007 K/JS, Wasm: Promote deprecation of public constructors of JS declarations to Error
• KT-81006 K/JS, Wasm: Promote wasm declarations in "js" package deprecation to Error
• KT-81004 K/JS, Wasm: promote deprecation NodeJsExec.create to Error
• KT-75621 KJS / Gradle: Disable npm in --offline mode
• KT-79910 Wasm, JS: Upgrade NPM versions
• KT-76996 Wasm: js tasks triggers wasm subtasks
• KT-79237 Upgrade NPM dependencies versions

Tools. Gradle. Multiplatform

New Features

• KT-76446 Add kotlin-level dependency block to work the same way as commonMain/commonTest dependencies blocks

Fixes

• KT-61127 Remove scoped resolvable and intransitive DependenciesMetadata configurations used in the pre-IdeMultiplatformImport IDE import
• KT-81980 KGP warning gives incorrect suggestion for AGP application compatibility
• KT-81601 With android.builtInKotlin=false AGP 9.0+, using kotlin-multiplatform plugin will fail with aClass Cast Exception
• KT-81060 KMP stores common compilation dependency resolution in Configuration cache leading to error when deserializing (Android only)
• KT-80720 Gradle import of multiplatform project fails: "Failed to invoke getAssociateWith on KotlinJvmCompilation_Decorated"
• KT-81200 Deprecate 'androidTarget'
• KT-74005 Implement a prototype of Unified Klib support in Kotlin Gradle Plugin
• KT-77367 [uklib] Project dependency to kotlin-jvm module leads to failure in transform during IDE import
• KT-80785 With android.builtInKotlin=false and android.newDsl=true, using kotlin-android plugin will fail with ClassCastException
• KT-81434 [uklib] androidCompileClasspath resolves java compatibility variant instead of android for uklib library
• KT-81469 [uklib] kmpPublicationStrategy affects resolution during import for androidTarget
• KT-81249 Kotlin 2.2.20 broke KMP implementation of Parcelize
• KT-77066 Promote kotlinArtifacts deprecation to an error
• KT-74955 Remove resources resolution strategy completely
• KT-62614 Remove legacy kotlin-gradle-plugin-model
• KT-79559 AGP complains about configurations resolved at configuration time due to KMP partially resolved dependencies diagnostic
• KT-78993 The value for property '*' property 'dependencies' is final and cannot be changed any further
• KT-76200 TestModuleProperties.productionModuleName for JVM module isn't present with 2.1.20-RC
• KT-55312 Replace "ALL_COMPILE_DEPENDENCIES_METADATA" configuration with set of metadata dependencies configurations associated per set
• KT-52216 HMPP / KTOR: False positive "TYPE_MISMATCH" with Throwable descendant
• KT-54312 TCS: Replace CompilationDetails abstract class hierarchy by composable implementation
• KT-55230 Remove metadata dependencies transformation for runtimeOnly scope

Tools. Gradle. Native

• KT-80675 Commonized cinterops between "test" compilations produce an import failure
• KT-77732 commonizeCInterop failed with "Unresolved classifier: platform/posix/size_t"
• KT-81510 commonizeCInterop exception with 'kotlinNativeBundleConfiguration' not found
• KT-81134 Native: Gradle configuration failure likely related to Klibs cross-compilation
• KT-77486 Remove bitcode DSL
• KT-64107 Kotlin Gradle plugin allows native binaries to have both debuggable and optimized flags set to true
• KT-74910 Bump destinationDir in CInteropProcess to hidden
• KT-74911 Promote CInteropProcess.konanVersion to hidden
• KT-74864 Enable exporting KDocs by default to ObjC
• KT-72705 K/N: compile task cache can not be used due to 'artifactVersion' input property

Tools. Gradle. Swift Export

• KT-81465 Swift Export package is build with wrong target
• KT-81460 [KGP] Crash in SwiftExportRunner due to older stdlib
• KT-79524 NoSuchMethodError: 'java.lang.String org.gradle.api.artifacts.ProjectDependency.getPath() for swift export with dependency export fro gradle < 8.11

Tools. Incremental Compile

• KT-75864 Implement a conservative mechanism of the IC with compiler plugins generated top-level declarations
• KT-55982 K2: Consider global lookups from plugins in incremental compilation
• KT-79504 Implement an API to provide IC lookups from backend plugins
• KT-75657 Fix difference in incremental compilation scenarios in BTA in-process vs daemon compilation mode
• KT-79541 Refactor tracking of files relation in IC
• KT-74628 Incremental compilation runner does not check compiler exit code before mapping sources to classes

Tools. JPS

• KT-77347 Support file-less compatible IC approach

Tools. Kapt

• KT-79138 K2: KAPT Java Stub Gen: Unresolved reference with @kotlin.Metadata in Java in 2.2.0
• KT-79133 K2 kapt: class literal with typealias is not expanded
• KT-79305 K2 kapt: ISE "Cannot evaluate IR expression in annotation" on typealias with unresolved expansion
• KT-79136 K2 kapt: unresolved nested class references in annotation arguments are generated without outer class names
• KT-71786 K2Kapt: Stubs generation does not fail on files with declaration errors
• KT-80843 K2: KAPT: Crash on any data class with duplicate properties: "Sequence contains more than one matching element"
• KT-73411 Remove kapt.use.k2 property and code which allows to use K2 with K1 kapt
• KT-79641 Kapt: too much information is printed in verbose mode

Tools. Maven

• KT-82180 kotlin-maven-plugin: IC succeeds after dependent source deletion
• KT-78201 Maven: migrate JVM compilation to the new BTA
• KT-81414 2.2.20 regression: OOM (Compressed class space) when in-process
• KT-81435 Maven: Improve BTA classloader reusage
• KT-81681 Maven: "NoClassDefFoundError" on a second test run
• KT-81218 Kotlin Maven Plugin 2.2.20: Java classes not resolved with enabled incremental compilation without daemon

Tools. Performance benchmarks

• KT-79709 Add -Xdetailed-perf CLI flag to control verbosity of performance logs
• KT-79226 [K/N] Add performance measurement for native backend lowerings

Tools. REPL

• KT-80062 ReplSnippetLowering sometimes produces IrConstructorCall with too many arguments

Tools. Scripts

• KT-80071 Kotlin script mode produces invalid IR: "value that is not available in the current scope"

Tools. Statistics (FUS)

• KT-77407 Add performance measurement for prefix lowerings
• KT-79455 [FUS] Collect KSP plugin version
• KT-79090 Integrate dynamic stats into MarkdownReportRenderer

Tools. Wasm

• KT-82365 K/Wasm: NodeRun tasks in Wasi depend on kotlinWasmToolingSetup
• KT-81313 K/Wasm: update Node.js to 24.x
• KT-81315 K/Wasm: update Node.js to 25.x
• KT-80582 Multiple reloads when using webpack dev server after 2.2.20-Beta2
• KT-80896 K/Wasm: debug tests only once
• KT-78921 K/Wasm: don't generate empty yarn.lock file

v2.2.21: Kotlin 2.2.21

Changelog

Backend. Wasm

• KT-81372 K/Wasm: JsException: Exception was thrown while running JavaScript code on Safari 18.2/18.3
• KT-80018 K/Wasm: exceptions don't work properly in JavaScriptCore (vm inside Safari, WebKit)

Compiler

• KT-81191 K2: "null cannot be cast to non-null type ConeTypeParameterLookupTag" with invalid code
• KT-80936 NON_PUBLIC_CALL_FROM_PUBLIC_INLINE : @PublishedApi doesn't work for fun interfaces

JavaScript

• KT-79926 Wrong export of interfaces with companions with ES Modules
• KT-81424 Kotlin/JS: Cannot Get / in a simple running application
• KT-80873 KJS: Stdlib requires ES2020-compatible JS engine due to BigInt type literal

Native

• KT-79384 K/N: Application Not Responding: Thread Deadlock

Tools. Gradle

• KT-79047 Gradle compileKotlin fails with configuration cache
• KT-81148 Publishing helpers in KGP are incompatible with Isolated Projects
• KT-80950 KGP breaks configuration cache when signing plugin with GnuPG is applied

Tools. Gradle. Multiplatform

• KT-61127 Remove scoped resolvable and intransitive DependenciesMetadata configurations used in the pre-IdeMultiplatformImport IDE import
• KT-81249 Kotlin 2.2.20 broke KMP implementation of Parcelize

Tools. Gradle. Native

• KT-81510 commonizeCInterop exception with 'kotlinNativeBundleConfiguration' not found
• KT-81134 Native: Gradle configuration failure likely related to Klibs cross-compilation
• KT-77732 commonizeCInterop failed with "Unresolved classifier: platform/posix/size_t"
• KT-80675 Commonized cinterops between "test" compilations produce an import failure

Tools. Maven

• KT-81218 Kotlin Maven Plugin 2.2.20: Java classes not resolved with enabled incremental compilation without daemon

Tools. Wasm

• KT-80582 Multiple reloads when using webpack dev server after 2.2.20-Beta2

v2.2.20: Kotlin 2.2.20

Changelog

Analysis API

• KT-78187 Synthetic properties not to be shown as callables
• KT-72525 K2. red code and KIWA on new-lines in guarded when conditions (with parentheses)
• KT-74246 KaVisibilityChecker.isVisible is inefficient with multiple calls on the same use-site

Analysis API. Code Compilation

• KT-78382 K2 IR lowering error when interface extends interface
• KT-73201 K2 IDE: Error while evaluating expressions with local classes
• KT-78164 Evaluator: '@JvmName' annotations are not recognized in other modules
• KT-76457 K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a JVM counterpart” on evaluating inline fun from common module inside jvm
• KT-73084 K2 evaluator cannot resolve local variables standing at the closing brace

Analysis API. FIR

Performance Improvements

• KT-76490 Do not load ast during the contracts phase if no contracts present
• KT-78132 Do not check FirElementBuilder#tryGetFirWithoutBodyResolve optimization for already resolved declarations

Fixes

• KT-72227 SOE from recursive value class
• KT-68977 K2 IDE: Reference to companion object through typealias in a function call does not work
• KT-72357 Implement partial body resolution
• KT-76932 Support context parameters on dangling modifier list
• KT-72407 FirImplementationByDelegationWithDifferentGenericSignatureChecker: FirLazyExpression should be calculated before accessing
• KT-77602 K2 / Analysis API: KAEWA “No fir element was found for KtParameter” on incorrect context()-call
• KT-77629 K2: NPE: "org.jetbrains.kotlin.fir.java.declarations.FirJavaTypeParameter.performFirstRoundOfBoundsResolution"
• KT-76855 Analysis API: KaType.asPsiType returns null for a local inner class in dependent analysis tests
• KT-72718 ImplicitReceiverValue.createSnapshot creates invalid FIR if receiver is smart-casted
• KT-76811 Analysis API: resolveToFirSymbol finds a FirPropertySymbol for a KtScript in dependent analysis
• KT-73586 [Analysis API] Add lazyResolveToPhase(STATUS) before accessing modifiers of members
• KT-71135 AA: exception from sealed inheritors checker when analyzeCopy
• KT-75534 K2 AA: "Containing declaration should present for nested declaration class KtNamedFunction" with dangling annotation on top-level anonymous function
• KT-75687 K2: local variable doesn't get to the do-while scope
• KT-56543 LL FIR: rework lazy transformers so transformers modify only declarations they suppose to

Analysis API. Infrastructure

• KT-76809 Analysis API: Dependent analysis tests frequently work with the original element instead of the copied element

Analysis API. Light Classes

• KT-78835 Find usages of a light constructor from a class with an empty body finds usages of class as well
• KT-78878 K2. Method shown as unavailable in Java when @JvmExposeBoxed is applied (redundantly) at both class and method level in Kotlin
• KT-78065 Support "Expose boxed inline value classes" in Light Classes
• KT-78076 DLC: KotlinDeclarationInCompiledFileSearcher missed accessors if types are boxed
• KT-77569 SLC: annotation missing from generated no-args constructor
• KT-75182 K2 AA. False positive red code "Unresolved reference" to a Kotlin method in Java when Kotlin uses a value class with @JvmOverloads
• KT-77564 Constructor with JvmOverloads and value class shouldn't mark regular constructors private
• KT-77505 K2: find usages on java accessor methods do not detect kotlin property accessor usages
• KT-76789 Annotation resolve shouldn't search through non-class members
• KT-76907 Wrong equality between repeatable annotation and container

Analysis API. Providers and Caches

• KT-77578 Analysis API: Performance degradation of KaBaseResolutionScope.contains after introduction of library restriction scopes
• KT-78640 Analysis API: Remove "friend builtins provider" from FirDeclarationForCompiledElementSearcher
• KT-74907 Analysis API: Apply platform-based library module content restrictions consistently
• KT-77605 AA: Leaking KaDanglingFileModule through IdeKotlinPackageProvider
• KT-62474 Analysis API: Improve mergeability and performance of custom search scopes
• KT-77022 Get rid of ExpectBuiltinPostProcessor workaround
• KT-77248 Delegation of JavaModuleResolver is restricted to CliJavaModuleResolver
• KT-76850 LLFirLibrarySession cannot be cast to LLFirResolvableModuleSession
• KT-76952 Analysis API: when exhaustiveness analysis fails for sealed classes in dangling files
• KT-72390 Kotlin project full of red code

Analysis API. Standalone

• KT-78638 Analysis API Standalone: Stdlib builtins are not indexed in STUBS deserialized declaration origin mode

Analysis API. Stubs and Decompilation

• KT-77496 Support HAS_MUST_USE_RETURN_VALUE metadata flags in FirStubBasedMemberDeserializer
• KT-77778 Function receivers doesn't have annotations
• KT-77777 Receiver annotations shouldn't be present on types
• KT-77538 Support default property accessors with annotations
• KT-77763 Decompiled stubs miss inline modifier for property accessors
• KT-77309 Decompiled property from annotation constructor with default value should have a constant initializer
• KT-77168 Prefer DataInputOutputUtil for serialization/deserialization
• KT-77117 Flaky WRONG_ANNOTATION_TARGET diagnostic
• KT-76791 Function signature types are deserialized inconsistently
• KT-76947 Support functional types with context parameters

Analysis API. Surface

New Features

• KT-73473 Provide KaExpressionInformationProvider.isUsedAsResultOfLambda
• KT-77278 Implement psi-based KaFirKotlinPropertyKtPropertyBasedSymbol#hasBackingField
• KT-70770 KaLocalVariableSymbol: support isLateInit

Performance Improvements

• KT-78526 Get rid of redundant checkValidity from withPsiValidityAssertion

Fixes

• KT-77674 Analysis API: Redundant smart cast to the original type
• KT-76577 Guard KaFirStopWorldCacheCleaner from deadlocks via threads waiting
• KT-78820 K2: ISE "FIR element class FirErrorExpressionImpl is not supported in constant evaluation" through RedundantValueArgumentInspection
• KT-75057 Analysis API: Reference to object through typealias in invoke operator call leads to original type
• KT-79042 Do not restore KaTypePointer if target kind has changed
• KT-72421 AA: "KtReference.resolveToSymbols" returns empty list when ASSIGN_OPERATOR_AMBGUITY error is present
• KT-63464 AA: KtPsiTypeProvider#asPsiType doesn't substitute kotlin.Unit
• KT-75913 K2: SymbolLightLazyAnnotation evaluates arguments and replaces them with constants
• KT-78628 K2. Setting Receiver=true in Change Signature produces parameter of regular function type receiver instead of extension function type
• KT-78278 ISE: FIR element "class org.jetbrains.kotlin.fir.expressions.impl.FirErrorResolvedQualifierImpl" is not supported in constant evaluation at org.jetbrains.uast.kotlin.internal.FirKotlinUastConstantEvaluator.evaluate
• KT-73184 Analysis API: KaFunctionCall.argumentMapping is unexpectedly deparenthesised
• KT-73327 Cover all psi inputs with scope validity assertions
• KT-78613 PSI: add binary compatibility checks
• KT-74013 Analysis API: Cover the API surface with @SubclassOptInRequired annotations
• KT-76614 Move the parser and lexer to a separate module
• KT-78552 KaFunctionValueParameter is not marked as KaLifetimeOwner
• KT-71152 Add back SubclassOptInRequired to classes in KaModule.kt
• KT-71876 Support storing parameter names in KaFunctionType
• KT-77738 AA: inconsistent KaType.allSupertypes regarding multiple iterations
• KT-75358 K2 AA, KaFirVisibilityChecker: private member of anonymous object is not visible inside it
• KT-73723 K2 AA, KaFirVisibilityChecker: protected member of superclass is not visible from anonymous object
• KT-78057 [Analysis API, K2] Context parameters are not resolved in KDoc
• KT-73758 K2 Mode: "KaEvaluator.evaluate" does not work for simple arithmetic expressions
• KT-72301 K2 AA. PSI should present for declaration built by Kotlin code on property access syntax of generic Java getter through Kotlin subclass
• KT-77730 K2: Unable to get a light PSI for a nested annotation used with fully-qualified name
• KT-73216 K2: unresolvable references in type parameters
• KT-71794 Analysis API: Types with errors have unresolved qualifiers in lambda parameters position
• KT-65846 Support parameter names in functional type rendering
• KT-76738 K2 AA: rendering constructor of sealed class inserts protected modifier
• KT-77515 KaTypeProvider#receiverType should be more tolerant to an error code
• KT-77333 K2 AA: KaFirTypeProvider.getType: InvalidFirElementTypeException: For TYPE_REFERENCE with text I, unexpected element of type: FirSuperReceiverExpressionImpl found
• KT-76044 K2 AA: isFun is true for restored symbol of Java interface with several methods
• KT-77264 KaTypeProvider#type should be more tolerant to an error code
• KT-77282 KaPropertySymbol: support isDelegatedProperty for libraries
• KT-77254 K2 AA: expectedType doesn't provide anything for parameter default value
• KT-74777 KaVariableSymbol.hasBackingField returns incorrect result for libraries
• KT-77280 Rename KaPropertyAccessorSymbol#isCustom to isNotDefault
• KT-77210 Analysis API: scopeContext shows implicit receiver with a class instance in the class constructor
• KT-77196 Clarify differences between KaPropertyAccessorSymbol#{isDefault, hasBody}
• KT-76580 K2: No expected type for the second+ vararg argument
• KT-76750 K2. internal exception 'Unable to provide inlay hint' on typo in nested lambdas
• KT-73290 Analysis API: Improve the architecture of content scopes and resolution scopes
• KT-73055 Get rid of the deprecated Analysis API API
• KT-70199 K2: ConcurrentModificationException at FirCallCompleter$LambdaAnalyzerImpl.analyzeAndGetLambdaReturnArguments

Backend. Wasm

New Features

• KT-65721 K/Wasm: stop unconditionally exporting any main function from the root package

Performance Improvements

• KT-70097 Optimize shared primitive variables in Native and Wasm

Fixes

• KT-80106 devServer in Kotlin/Wasm overwrites defaults, causing missing static paths
• KT-80018 K/Wasm: exceptions don't work properly in JavaScriptCore (vm inside Safari, WebKit)
• KT-66072 K/Wasm: improve how exceptions work in JS interop
• KT-77897 WasmJs: ClassCastException when using star-projection with nullable transformation in generic extension function
• KT-71533 K/Wasm + K2: no error on KClass::qualifiedName usages
• KT-73931 WASM: "RuntimeError: illegal cast" with nullable generic
• KT-65403 [WASM] RuntimeError is thrown instead of ClassCastException
• KT-79317 [Wasm] Do not throw CCE for ExcludedFromCodegen declarations
• KT-66085 K/WASM: Runtime error is uncaught with catch (e: Throwable)
• KT-78036 K/Wasm: generate a message with "expected" and "actual" types in case of CCE
• KT-78384 K/Wasm: Incorrect debug info of local declarations in inline function from another file
• KT-72220 Wasm: Unclear exception in case of missed dependency
• KT-71691 No trace on Wasm/JS if an error occurred in initializing global variables in a file with the main function
• KT-67554 [Wasm] Consider to have reference equals or/and equals for function references
• KT-71521 K/Wasm: incorrect results on equality checks for capturing property references
• KT-71522 K/Wasm: incorrect results on equality checks for function references
• KT-69570 K/Wasm: JsExport with default parameter value compiles to invalid Wasm
• KT-71517 K/Wasm: KClass::qualifiedName for local classes and objects returns non-null value
• KT-68309 WASM: Anonymous class simpleName returns "" instead of null
• KT-77272 K/Wasm: Remove kotlin.wasm.internal.ClosureBox* classes from the standard library
• KT-66106 Wasm: lambda was not invoked in test lambda2.kt
• KT-77855 [Wasm] Improve virtual function calls speed for lambdas
• KT-77501 Wasm: unsigned vararg compiles to invalid Wasm
• KT-76775 [Wasm] Inconsistent FP mod operation
• KT-77464 Wasm: KType.toString() has simple names even with -Xwasm-kclass-fqn
• KT-77465 Wasm: KTypeParamter printed without variance information

Compiler

New Features

• KT-71768 Enable -Xjvm-default=all-compatibility by default to generate JVM default interface methods
• KT-78374 Make indy lambda function name generation more consistent
• KT-45683 Allow generics in contract type assertions
• KT-27090 Support contracts in getter and setter for top-level extension properties
• KT-76766 Warning is missing for wrong subclass checking
• KT-71244 Incorporate existing @CheckReturnValue annotation(s) into Kotlin's unused return value checker
• KT-73256 Implement all meta-target for annotations
• KT-78792 Report warning for redundant return in expression body
• KT-32313 Support contracts for operator functions
• KT-70722 Implement better Kotlin warnings for value classes and JEP 390 (Warnings for Value-Based Classes)
• KT-65688 Generate when-expressions over final classes via invokedynamic typeSwitch + tableswitch on JDK 21+
• KT-54344 Trigger the unused expression warning for interpolated strings, even when the expression may have side effects
• KT-74807 Implement 'full' unused return value checker mode
• KT-77653 K/N: an optimization pass to remove redundant type checks
• KT-64477 Enhance KotlinLightParser to make it able to parse scripts
• KT-74809 Support unnamed local variables
• KT-72941 ANNOTATIONS_ON_BLOCK_LEVEL_EXPRESSION_ON_THE_SAME_LINE missing in K2
• KT-75061 Support context-sensitive resolution in type position

Performance Improvements

• KT-77993 Optimize old PSI/LightTree Kotlin parser
• KT-78672 Consider having FirCallableSymbol.callableId null for local properties / parameters
• KT-77839 K2: consider not creating CallableId for value parameters / variables / fields
• KT-74981 Kotlin/Native: large binary size for iOS target in 2.1.0(LLVM16)
• KT-77838 K2: consider replacing LinkedHashMap with HashMap inside scopes and scope session
• KT-76698 Android Studio compose preview holds read lock 700ms for KaCompilerFacility API
• KT-68677 Kotlin compilation issue when using EnumMap and Pair

Fixes

• KT-79979 K2: ClassCastException when overriding extension property with delegation
• KT-67146 UPPER_BOUND_VIOLATED missing on implicit type arguments
• KT-76477 Kotlin/Native: fix compiler performance reporting in sources->klib and klibs->binary
• KT-79866 kotlinc 2.2.0 silently emits 'NonExistentClass' instead of reporting an error
• KT-78666 "Platform declaration clash" caused by indy lambda name generation which generates conflicting names
• KT-80285 IJ monorepo: broken compilation after 2.2.20-RC update
• KT-79442 "Multiple annotations of type kotlin.coroutines.jvm.internal.DebugMetadata": 2.2.0-Beta1 generates broken code with JVM default suspend methods in interfaces
• KT-78589 "Class does not have member field" caused by delegation from a Java to Kotlin class
• KT-79816 Java Interfaces implemented by delegation have non-null return checks
• KT-78097 False positive NO_ELSE_IN_WHEN on sealed interface with negative is check
• KT-77182 A function in a file annotated with @file:MustUseReturnValue doesn't produce a warning when it is used from compiled code
• KT-79085 Adding -Xreturn-value-checker=full to kotlinc causes "error: conflicting overloads"
• KT-75268 K2: Implement the new compilation scheme for MPP (compiler part)
• KT-78843 FIR tree: comments within String concatenation aren't visited in 2.2.0
• KT-77401 [FIR] ParameterNameTypeAttribute.name doesn't support @ParameterName with compile-time constant property argument
• KT-73611 Remove -Xextended-compiler-checks in favor of a deprecation cycle
• KT-79276 Dexing fails with "Cannot read field X because is null" with 2.2.0
• KT-79781 Missing MISSING_DEPENDENCY_CLASS when using type alias with inaccessible RHS
• KT-78621 false-positive type mismatch error on value of nullable type as value of platform type
• KT-79547 "UnsupportedOperationException: Not supported" with inlining and value classes
• KT-52706 Bad signature for generic value classes with substituted type parameter
• KT-79519 Nested type alias is unreachable from another module
• KT-76839 False-negative MISSING_DEPENDENCY_CLASS on parameter of data class constructor
• KT-78352 False-positive IDENTITY_SENSITIVE_OPERATIONS_WITH_VALUE_TYPE when comparing with equality operator (==)
• KT-78815 Symbol not found: __ZNSt3__117bad_function_callD1Ev error on iOS 15.5 simulator in Xcode 16.3 after update to 2.2.0-Beta2
• KT-25341 NOT_YET_SUPPORTED_IN_INLINE reported over anonymous object border
• KT-77099 'all' annotation target is not a soft keyword
• KT-76478 FIR: Implement IDE-only checker for types exposed in inline function
• KT-79355 Failed to fix the problem of desugared inc with new reverse implies returns contract
• KT-79277 Implies returns contract doesn't affect the return type of the function if it is in the argument position
• KT-79271 Implies returns contract doesn't impact exhaustiveness
• KT-79218 SMARTCAST_IMPOSSIBLE for top‑level extension‑property getter despite returnsNotNull contract
• KT-79220 returnsNotNull contract ignored on extension function with nullable receiver
• KT-79354 IllegalStateException: Debug metadata version mismatch. Expected: 1, got 2 with compiler 2.2.20-Beta1 and stdlib 2.2.0
• KT-78479 IR lowering failed / Unexpected null argument for composable call
• KT-77986 K2: False negative: "Local classes are not yet supported in inline functions"
• KT-79076 'IllegalStateException: Cannot serialize error type: ERROR CLASS: Uninferred type' with Exposed column using recursive generic type
• KT-78726 Split runPsiToIr phase into runPsiToIr and runIrLinker
• KT-77672 K/N: come up with a fallback strategy for the casts optimization pass
• KT-76365 K2: Missing ABSTRACT_SUPER_CALL
• KT-76585 K2: RETURN_IN_FUNCTION_WITH_EXPRESSION_BODY is not reported inside initializers of local variables
• KT-79099 K2: Do not inherit inline modifier
• KT-76902 Omit type-use annotations from diagnostics
• KT-64499 Report error on overloading by order of context parameters
• KT-58988 K2: Deprecate exposing package-private parameter of internal method
• KT-77199 OPT_IN_USAGE_ERROR is still absent when calling the enum primary constructor
• KT-72800 K2: java.util.NoSuchElementException when introduce variable
• KT-79056 Add experimental language version 2.5
• KT-17460 Diagnostics and intention on suspend function that is overriden with non-suspend one.
• KT-78351 Plugins: VIRTUAL_MEMBER_HIDDEN caused by FirSupertypeGenerationExtension
• KT-78527 No LESS_VISIBLE_TYPE_ACCESS_IN_INLINE_WARNING is reported when a private companion object is accessed via the class name
• KT-79045 FirExpectActualMatcherTransformer should not visit bodies
• KT-74570 K2: Linenumber for annotation on property is present in LVT
• KT-74569 K2: Linenumber of annotation is present in constructor's LVT
• KT-64731 K2: Annotation on inline function or inside inline function is hit by debugger
• KT-77756 Add experimental language version 2.4
• KT-78837 linkReleaseFrameworkIosArm64: Compilation failed: An interface expected but was Any
• KT-78945 CONTRACT_NOT_ALLOWED is not reported for local operator functions
• KT-78944 ANNOTATION_IN_CONTRACT_ERROR is not reported for operators and property accessors with contracts
• KT-78943 ERROR_IN_CONTRACT_DESCRIPTION is not reported for operators and property accessors with contracts
• KT-78932 Contracts are allowed for open and overridden property accessors
• KT-77203 FIR: Consider adding destructured type to all COMPONENT_FUNCTION_* diagnostics
• KT-76635 Implement Data-Flow Based Exhaustiveness Support
• KT-78805 K2: False positive METHOD_OF_ANY_IMPLEMENTED_IN_INTERFACE
• KT-78651 No need to report LESS_VISIBLE_TYPE_ACCESS_IN_INLINE_WARNING in noinline default value lambda
• KT-78849 K2: [Wasm, Fir2IR] Invalid smartcast on overloaded function call
• KT-78793 Make feature AllowEagerSupertypeAccessibilityChecks experimental
• KT-78736 Missing [NOT_YET_SUPPORTED_IN_INLINE] diagnostics because of incorrect context update
• KT-78324 K2: False negative [INCONSISTENT_TYPE_PARAMETER_VALUES]
• KT-69975 KDoc: cannot reference elements with names in backticks
• KT-78229 KDoc: unable to reference a method with spaces in the name
• KT-78047 Render unnamed context parameters as _ instead of
• KT-74621 Debugger: AssertionError on evaluating two suspending calls
• KT-78784 Improve deprecation warnings about KTLC-284
• KT-76826 New inference error [NewConstraintError at Incorporate TypeVariable] caused by recursive generics and nullable expected type
• KT-77685 "IllegalArgumentException: Sequence contains more than one matching element"
• KT-78028 "FirNamedFunctionSymbol" leaks to the error message about missing infix modifier
• KT-77245 Add expression name to RETURN_VALUE_NOT_USED diagnostic
• KT-78071 False-positive NO_ELSE_IN_WHEN after variable reassignment
• KT-78068 False-positive NO_ELSE_IN_WHEN after excluding enum value with inequality check
• KT-71134 Consider to get rid of CapturedTypeMarker.withNotNullProjection()
• KT-77131 getValue/setValue can be declared with more than two/three parameters
• KT-78452 Drop redundant frontend structures after fir2ir conversion
• KT-78458 Don't populate PredicateBasedProvider if no lookup predicates are registered
• KT-78440 Lambda with an implicitly runtime-retained annotation is generated via invokedynamic with -Xindy-allow-annotated-lambdas=false
• KT-77709 Missing diagnostics of accessing less visible objects in inline function
• KT-77577 False positive exposed type warnings
• KT-77095 FIR: Report warnings on exposure of references to invisible references in inline functions
• KT-76981 Move exposed type checker to regular checkers
• KT-78252 ClassCastException when Array<Void> used for compile-time vararg of Nothing
• KT-77713 Context Parameters cause compiler generate r8 incompatible bytecode
• KT-71854 K2 IDE. False positive red code because of external annotation on a generic parameter
• KT-67335 K2: Infers Int instead of Long for an ILT
• KT-76629 K2 Mode: False positive RedundantVisibilityModifier inspection on private constructors in sealed classes
• KT-77728 Drop controversial experimental checkers
• KT-78429 K2: Property callable reference incorrectly smart-casted to intersection of property type and KProperty
• KT-78509 Renamed for override copy functions are cached in scope instead of session
• KT-17417 Loops in delegation: no compilation error on non-abstract class with abstract method that never implemented
• KT-75033 Split JvmBackendPipelinePhase to be able to provide a custom implementation of writeOutputs
• KT-75831 K2: An extra "[VALUE_PARAMETER_WITHOUT_EXPLICIT_TYPE] An explicit type is required on a value parameter." for a missing parameter
• KT-78370 All the [something]Assign operators on dynamic return Unit as a type
• KT-73950 K2 IDE / Kotlin Debugger: ISE “Fake override should have at least one overridden descriptor” on evaluation of local calss in presence of bystander
• KT-78280 Implement the sourceless KtDiagnostics
• KT-76543 Migrate psi2ir sources to new IR parameter API
• KT-77716 Kotlin/Native and -Xseparate-kmp-compilation: "Compilation failed: Several functions kotlin/native/immutableBlobOf found"
• KT-76400 Context-sensitive resolution doesn’t work in if-else condition passed as a function argument
• KT-76606 Enable 'Indy: Allow lambdas with annotations' by default
• KT-76739 Dubious argument type mismatch "actual type is 'String', but 'String' was expected" caused by wrong number of type arguments
• KT-78121 Report warning on function type with multiple implicit values that's annotated with DSL marker
• KT-76872 Anonymous context parameters are not visible in debugger
• KT-74088 Kotlin Debugger: CCE on evaluating private suspend function
• KT-77301 False positive Context Parameter resolution when using DslMarker
• KT-78230 Add more test cases to the holdsIn contracts
• KT-78111 K2: Approximation of captured star projection in function type produces Function1<Nothing?, Unit> in IR
• KT-77273 K/N: Remove the kotlin.native.internal.Ref class from the standard library
• KT-73995 JVM bytecode: Bad name for value class field
• KT-73013 Kotlin Debugger: ISE “No mapping for symbol: VALUE_PARAMETER” on evaluating callable reference to local function with closure in it
• KT-77665 K2: unresolved annotatation on local context parameter type
• KT-77485 Add constraints logging to inference
• KT-76504 Find and deprecate actively used parts of K1 API
• KT-75338 K2 Mode: False positive "Redundant assignment" diagnostic on variable captured by local function
• KT-77648 K2: False negative DSL_SCOPE_VIOLATION when using named argument for lambda with annotated function type
• KT-77355 Report warning on overloading by a superset of another overload's context parameters
• KT-77354 Report warning on overloading by a subtype of another overload's context parameter
• KT-78084 Unify deprecation warning messages
• KT-76776 @MustUseReturnValue doesn't affect nested scopes
• KT-77545 @NoInfer on receiver type leads to false positive type mismatch when generic type is specified explicitly and closest implicit receiver is of incorrect type
• KT-76772 @NoInfer on a context parameter's type leads to a false-positive context argument ambiguity error regardless of the closest implicit values' types if there are multiple of them at the call site
• KT-76771 @NoInfer on context parameter type leads to a false-positive type mismatch when generic type is specified explicitly and closest implicit value at the call site is of a mismatching type
• KT-77156 INITIALIZATION_BEFORE_DECLARATION is not reported in anonymous object
• KT-78060 UNRESOLVED_REFERENCE in fp-space
• KT-67555 Debug metadata: map the Continuation label to the next executable location in file
• KT-77723 Refine the message for ArrayEqualityCanBeReplacedWithEquals checker
• KT-75178 Inline functions in conjunction with @JvmStatic may result in bytecode errors
• KT-77390 Prototype lazy loading of stdlib symbols in Native
• KT-77921 False positive EXTENSION_SHADOWED_BY_MEMBER when member has context parameters
• KT-77895 false-negative error on package directives with context parameter lists (even with context parameters disabled)
• KT-76767 AMBIGUOUS_CONTEXT_ARGUMENT should report the name of the context parameter in addition to the type
• KT-77444 K2: False negative "Unchecked cast" with casting from MutableList to MutableList
• KT-63348 K2: FIR2IR should properly pass expected types
• KT-77627 K2: consider getting rid of NEW_INFERENCE_ERROR
• KT-75833 K2: Extra [ANNOTATION_ARGUMENT_MUST_BE_CONST] when passing regex-like strings as annotation arguments
• KT-77547 Native: add a check that the logic looking for stdlib-related bitcode is not used when compiling sources to a klib
• KT-77206 Remove PARAMETER_NAME_CHANGED_ON_OVERRIDE suppression in KMP lexers
• KT-77679 Update syntax-api dependency in KMP Kotlin parser
• KT-77705 K2: Consuming data class compiled with kotlin 1.0.5 breaks the K2 compiler
• KT-76583 CCE: suspend lambda attempts to unbox value class parameter twice after lambda suspended
• KT-76663 KJS: KotlinNothingValueException caused by expression return since 2.1.20
• KT-75457 Native: cache machinery uses stdlib cache with default runtime options even if custom runtime options are supplied when partial linkage is disabled
• KT-77563 False-positive smart cast with captured local in init block causes NPE
• KT-77696 ISE "couldn't find inline method" on kotlin/Result compiled by old Kotlin version
• KT-76931 K2: Annotation on do-while expression captures variables from inside the loop
• KT-77183 Metadata: remove multi-field value class representation
• KT-77678 Apply found optimization to Kotlin KMP parser
• KT-60127 K2: Support scripts with LightTree-based raw FIR building
• KT-76615 K2: "IllegalArgumentException: Inline class types should have the same representation: Lkotlin/UByte; != B" for mixed Java/Kotlin code
• KT-77220 Annotation with EXPRESSION is not allowed on lambdas in Kotlin 2.2.0
• KT-77656 K/N: fix the super type for local delegated properties
• KT-75907 Inference/PCLA: consider storing semi-fixed variables in inference session
• KT-77144 Implement KMP Kotlin parser
• KT-77352 Implement KMP Expression parser
• KT-76984 SYNCHRONIZED_BLOCK_ON_JAVA_VALUE_BASED_CLASS isn't reported for primitive wrapper classes instantiated within the scope
• KT-67471 K2: "Unresolved reference" on incorrect term of FQ name
• KT-77269 [K/N] external calls checker crashes when used with caches
• KT-77205 Kotlin Debugger / Context Parameters: CCE “class FirPropertySymbol cannot be cast to class FirFunctionSymbol” on evaluating class property
• KT-74133 FIR: use EmptyDeprecationsPerUseSite consistently in symbols
• KT-77100 java.lang.Void type is not ignorable
• KT-77491 K2: No SUPERTYPE_IS_EXTENSION_FUNCTION_TYPE when using typealias
• KT-77490 Report error on contextual function type in supertype
• KT-77431 Functional type with a context is allowed as an upper-bound
• KT-77432 Context isn't passed properly when functional type with a context is used as a type argument
• KT-77417 There is no TYPE_VARIANCE_CONFLICT_ERROR when 'out' type is used in context
• KT-62631 Improve expect-actual "checking" incompatibilities reporting
• KT-77481 Support ExpectRefinement feature in HMPP compilation scheme
• KT-77268 Make sure that -Xreturn-value-checker also enables -XX:UnnamedLocalVariables
• KT-65719 K1/K2: Nullness defaults from subclass unsoundly applied to method in superclass
• KT-53836 In type-parameter declarations, recognize JSpecify annotations only on bounds
• KT-73658 JSpecify @NonNull annotation on type-parameter bound prevents type-variable usages from being platform types
• KT-77000 Leave ForbidInferOfInvisibleTypeAsReifiedOrVararg as a warning
• KT-74084 K2: False negative [NO_ELSE_IN_WHEN]
• KT-77451 FirLazyResolveContractViolationException for test with overridden delegate
• KT-77397 Report UNSUPPORTED_CONTEXTUAL_DECLARATION_CALL when calling declaration with contextual function type in signature
• KT-77137 K2: Controversial behavior allows resolving annotation arguments on a companion inside it
• KT-77257 Report compilation error when in generated JVM bytecode there is a need for CHECKCAST of the conditional expression to the inaccessible interface
• KT-77256 Report compilation error when in generated JVM bytecode there is a need for CHECKCAST of the functional call result to the inaccessible interface
• KT-76356 K2 evaluation fails on evaluating inline methods if there is an inline with AutoCloseable
• KT-73786 Evaluator: cannot evaluate inline methods with reified parameter
• KT-77204 Native: XCode strip command causes flaky tests
• KT-77351 Implement KMP KDoc parser
• KT-76914 compile-time failure on a type argument placeholder in a callable reference
• KT-76597 False negative opt-in required on delegated constructor call
• KT-76667 Mark the class implementation of interface function with ACC_BRIDGE in the class file
• KT-77181 K2: a nested typealias annotation observes member declarations of the outer class
• KT-77180 K2: Wrong scope for annotation arguments in the constructor header
• KT-77287 Try enforcing source != null when origin == Source
• KT-76135 K2: drop pre-1.8 language features from compiler code
• KT-77231 Reflection: CCE on resuming coroutine after callSuspend if result is a generic inline class substituted with primitive
• KT-77031 Investigate the actual need of deduplicating provider in HMPP compilation scheme
• KT-77050 Implement KMP KDoc lexer
• KT-77048 Implement KMP Kotlin lexer
• KT-77044 Consolidate, refine and update jFlex dependency
• KT-77252 It is impossible to declare an unnamed variable in a script
• KT-58137 K2: ISE "Usage of default value argument for this annotation is not yet possible" when instantiating Kotlin annotation with default parameter from another module
• KT-77140 Protect ConstraintSystemCompletionMode.UNTIL_FIRST_LAMBDA with opt-in
• KT-76898 K2: ClassCastException when data class shadows supertype's componentX method with wrong type
• KT-75695 Bogus "Assigned value is never read" warning for prefix ++ operator
• KT-76805 Wrong NPE occurs when assigning synthetic properties with platform types in Kotlin 2.1.20
• KT-77078 K2: anonymous object is wrongly allowed to implement interfaces by unsafe Delegation
• KT-72722 Treat 'copy' calls of a data class as explicit constructor usages
• KT-77149 IllegalArgumentException: source must not be null
• KT-76806 K2: AIOOBE in FirEqualityCompatibilityChecker
• KT-72391 KJS: (a * b).toDouble_ygsx0s_k$ is not a function
• KT-76950 K2: "IllegalArgumentException: Inline class types should have the same representation: Lkotlin/UByte; != B" with nullable UByte
• KT-76043 Native: NotImplementedError: Generation of stubs for class org.jetbrains.kotlin.ir.symbols.impl.IrFieldSymbolImpl is not supported yet
• KT-77126 Transitive dependency mismatch between Kotlin Gradle Plugin and Scripting dependencies
• KT-72831 ANNOTATION_USED_AS_ANNOTATION_ARGUMENT missing in some cases in K2
• KT-73707 Remove dependency on ":compiler:backend.jvm" from Native
• KT-75499 CheckerContext#{containingDeclaration, containingFile} in checkers should return symbols
• KT-76548 False positive TYPE_MISMATCH when resolving an expression with the expected type from the upper bound
• KT-76142 K2: @RequiresOptIn warning does not display the custom message when using concatenated strings.
• KT-68699 Kotlin Debugger: UPAE “lateinit property parent has not been initialized” on trying evaluate enumValues(), enumEntries() from inlined function with reified parameter
• KT-63267 K2: incorrect line numbers after smart cast of an extension receiver
• KT-71309 Kotlin Debugger: UnsupportedOperationException on calling method with reified type parameter
• KT-74912 K2: Investigate irrelevant ARGUMENT_TYPE_MISMATCH on top-level lambdas
• KT-74657 K2: Linenumber for annotation on local variable is present in LVT
• KT-76749 NONE_APPLICABLE message is unreadable for stdlib context function
• KT-74932 Investigate false-negative ARGUMENT_TYPE_MISMATCH on a nested anonymous function
• KT-74545 Redundant TYPE_MISMATCH in variable initializer with call
• KT-76774 K2: Simplify ResolutionMode.WithExpectedType contracts
• KT-76689 Unnamed local variable with type and without initializer is allowed
• KT-76746 ClassCastException: class org.jetbrains.kotlin.fir.types.impl.FirUserTypeRefImpl cannot be cast to class
• KT-76754 K2: Compiler doesn't check annotations on array literals (as annotation arguments)
• KT-76674 The function isn't called from unnamed local variable initializer
• KT-75553 MISSING_DEPENDENCY_SUPERCLASS and MISSING_DEPENDENCY_SUPERCLASS_WARNING is reported at the same time on the same element
• KT-76345 Enhance variable fixation
• KT-73348 AssertionError from isCompiledToJvmDefault on super call of suspend function with composable function parameter
• KT-72305 K2: Report error when using synthetic properties in case of mapped collections
• KT-73527 Prohibit (via a deprecation warning) accessing nested class through generic outer class
• KT-59886 K2: Disappeared ERROR_IN_CONTRACT_DESCRIPTION
• KT-61227 Definitely non-nullable types cause "Any was expected" for @Nullable parameter
• KT-57911 K2: Contracts are not inherited by substitution overrides
• KT-47398 'null' EnhancedNullability value in String-based 'when' might produce different behavior depending on whether 'when' is "optimized" or not

Compose compiler

• CMP-7505 IrLinkageError: Function can not be called: No function found for symbol
• b/432262806 Fix target description lookup
• b/436870733 Prevent lambda memoization in local classes inside a composable
• b/432485982 Fix AbstractMethodError when overriding function with default parameters
• b/432262806 Use classId as FirApplierInferencer tokens
• b/400371006 Gate default parameters behind language versions
• b/245673006 Specify fqName for classes and functions in build metrics
• b/254577243 Avoid printing complex expressions in compiler metrics
• b/394891628 Allow specifying target version of Compose runtime
• b/424454512 Recreate FirApplierInferencer for each check
• b/417406922 Restrict references to @Composable properties
• b/282135108, b/349866442 [Compose] Enable applier checking when using FIR
• b/307592552 Add BigInteger and BigDecimal to the list of known stable classes
• b/414547195 Unwrap type casts when inferring @Composable call arguments

IR. Inlining

New Features

• KT-70360 KLIBs: Uniformly handletypeOf() calls at 1st/2nd stages of compilation

Fixes

• KT-79002 [Inliner][Native][PL] Native backend fails for inline function that instantiates a class that was compiled implementing two interfaces, which turned into abstract classes
• KT-78137 Review & enable PL tests with enabled IR inliner
• KT-72464 [Native][JS][Wasm] Non-local return through suspend conversion breaks the IR inliner
• KT-69941 Rewrite DumpSyntheticAccessors lowering to test handler after moving common Native/JS prefix to KLIB compilation
• KT-78245 Synthetic Accessors incorrectly copies default values
• KT-76236 Include NativeInliningFacade and JsIrInliningFacade in all Native & JS test runners
• KT-76512 Avoid using originalFunction inside FunctionInlining
• KT-69457 [references] IR Inliner: References to inline functions are not inlined
• KT-47521 Native & JS: Recursive inline fun calls -> StackOverflowError
• KT-76425 Do not store signatures of preprocessed inline functions in KLIBs
• KT-76763 [Inliner] Don't use attributeOwnerId to pass info from Inliner to non-JVM backends
• KT-77102 [Inliner] Expression uses unlinked type parameter symbol
• KT-76145 Enhance error message about poisoned KLIBs in KLIB-based compilers
• KT-77079 IR: Report warnings on exposure of references to invisible declarations in inline functions
• KT-69797 [references] Accessors for private function/constructor/property references are not generated
• KT-76454 Investigate erasure of class type parameters during inliner
• KT-72593 [K/N] Add NativeIrInliningFacade to CrossCompilationIdentityTest
• KT-70969 IR Inliner: Ensure that common prefix at 1st phase does not affect KLIB signatures
• KT-75937 [IR Inliner] Umbrella for failing tests due to public inliner
• KT-77295 Improve Diagnostic Message Formatting for Private API Exposure in Inline Functions
• KT-77047 Ir Ininler: crash on fake override in private class from more visible class
• KT-77336 [references] Synthetic accessor test for private top-level function accessed via reference fails with No function found for symbol
• KT-76761 [Inliner] non-JVM IR Inliner incorrectly uses K/JVM-specific code
• KT-76712 [Inliner] No function found for symbol '/|?'
• KT-76711 [Inliner] Reference to function 'privateMethod' can not be evaluated

IR. Tree

• KT-77508 K/JS and K/Native CompilationException Wrong number of parameters in wrapper
• KT-78978 PL tests: Drop adjust*forLazyIr() hack
• KT-76813 IR validator: not all symbols/references are visited
• KT-77596 Refine reuseExistingSignaturesForSymbols setting in IR serializer
• KT-76723 IR validator: Check visibilities of annotations
• KT-76405 Visit annotations in IrTypeVisitor and IrTreeSymbolsVisitor
• KT-78033 [PL] Merge IrUnimplementedOverridesStrategy to PartiallyLinkedIrTreePatcher

JVM. Reflection

• KT-77882 kotlin-reflect: KParameter.name returns "" instead of null for anonymous context parameters
• KT-77879 kotlin-reflect: toString overrides of KCallable implementations do not render context parameters
• KT-74529 Context parameters support in reflection
• KT-52170 Reflection: typeOf<Array> gives classifier LongArray
• KT-77663 Reflection: java.util.ServiceConfigurationError: "module kotlin.reflect does not declare uses" when using kotlin-reflect in modular mode

JavaScript

New Features

• KT-79222 K/JS: Allow using Long in exported declarations
• KT-79394 Add the possibility to write common external declarations between JS and WasmJS targets
• KT-70486 K/JS: exported exception types should extend Error
• KT-19016 Define accessors as enumerable

Performance Improvements

• KT-57128 KJS: Use BigInt to represent Long values in ES6 mode
• KT-54689 KJS: Data class equals less efficient than manually written version

Fixes

• KT-69297 Deprecate referencing inlineable lambdas in js() calls
• KT-77620 Fix failing IC tests on Windows
• KT-77372 KJS: NullPointerException at JsIntrinsics$JsReflectionSymbols
• KT-78316 KJS: List is not exported to TypeScript declaration if wrapped in Promise
• KT-79644 BigInt enabled for ES 2015 despite being an ES 2020 feature
• KT-79089 KJS: Could not load reporter / Cannot find module 'mocha' when running jsNode tests
• KT-79916 K/JS: "Uncaught TypeError" when using 'Xes-long-as-bigint' in compose-html
• KT-79050 KJS / IC: "Unexpected body of primary constructor for processing irClass"
• KT-79977 KJS: Long.rotateLeft returns incorrect result when BigInts are enabled
• KT-76093 Support new callable reference nodes in partial linkage in Kotlin/JS
• KT-78073 K/JS: KProperty from local delegate changes after another delegate is invoked
• KT-52230 KSJ IR: Applying identity equality operator to Longs always returns false
• KT-6675 KotlinJS: toInt() on external Long throws error
• KT-79184 K/JS: Further intrinsify BigInt-backed Long operations
• KT-78701 Js and Wasm: enumValueOf does not include invalid value into an exception message
• KT-55256 KJS: non-exported subclass with a no-parameter function overload doesn't compile
• KT-76034 passProcessArgvToMainFunction contains the node path and script path
• KT-66091 KJS, WASM: AssertionError: Illegal value: <T> in test nonReified_equality.kt
• KT-78169 KJS: [NON_EXPORTABLE_TYPE] with @JsExport class if @JsStatic companion method returns an out type
• KT-57192 KJS: "Exported declaration uses non-exportable return type" caused by @JsExport Promise with Unit type
• KT-61183 KJS: "AssertionError: Assertion failed" from JsSuspendFunctionsLowering
• KT-59326 KJS / IR: invalid code generated when using constructor parameter named default
• KT-70295 KLIB stdlib: Unify intrinsics for boxing captured variables in lambdas across non-JVM backends
• KT-77021 CompilationException: Encountered a local class not previously collected on inner classes inside anonymous objects
• KT-77320 KJS: Big.js times() is compiled to multiply (*) operator
• KT-77430 K/JS: Remove sharedBox* intrinsics from the standard library
• KT-73267 KJS: IC: "FileNotFoundException": Build failures with Kotlin 2.1-RC and RC2
• KT-76912 KJS: @JsStatic can't be used for companion objects implementing external interfaces
• KT-77271 KJS / Serialization: "Cannot set property message of Error which has only a getter"
• KT-77242 Kotlin/JS & Kotlin/Wasm backends: Artificially apply reverse topo-order after IR linkage
• KT-77649 KJS: es-arrow-functions requires explicit opt-in when target is ES2015
• KT-76235 [JS] Extra invalid line tmp_0.tmp00__1 = Options; in testSuspendFunction()
• KT-76234 [JS] Extra invalid line Parent in testNested()
• KT-76233 [JS] Extra invalid import line in testJsQualifier()
• KT-77190 Migrate JS diagnostic tests to the new CLI-based test facades (1st phase only)
• KT-77418 KJS: cannot debug with whole-program granularity
• KT-77371 [K/N][K/JS][K/Wasm] Unify visibility rules for generated default argument stubs
• KT-77148 KJS: "Uncaught TypeError: (intermediate value).l(...).m is not a function" during production build run
• KT-77193 Migrate JS irText tests to the new CLI-based test facades (1st phase only)
• KT-77192 Migrate JS ABI reader tests to the new CLI-based test facades (1st phase only)
• KT-77187 Migrate JS box tests to the new CLI-based test facades (1st phase only)
• KT-77027 Migrate 1st phase facades to the phased CLI infrastructure in JS tests
• KT-69591 KJS / d.ts: Wrong type of SerializerFactory for abstract classes
• KT-76027 KJS: "ReferenceError: entries is not defined": Accessing entries of an enum arbitrarily fails with println()
• KT-76232 Suspend contextual function with extension receiver results in wrong values at runtime in JS
• KT-42305 KJS / IR: "Class constructor is marked as private" @JsExport produces wrong TS code for sealed classes
• KT-52563 KJS / IR: Invalid TypeScript generated for class extending base class with private constructor

Klibs

New Features

• KT-78699 Compiler (JS, Wasm): warn about incompatible kotlin-test/compiler pair
• KT-78700 Compiler (JS, Wasm): Consider making diagnostics for incompatible kotlin-stdlib/compiler and kotlin-test/compiler pairs errors instead of warnings
• KT-74815 KLIB resolver can't consume metadata klibs between source sets when abi_versions diverge
• KT-68322 Compiler (JS, Wasm): warn about incompatible Kotlin stdlib/compiler pair

Fixes

• KT-78168 K/N: "IndexOutOfBoundsException: Index 3 out of bounds for length 3" for iOS build with Kotlin 2.2.0-RC2
• KT-75766 PL: Error on building fake override with multiple overridden members with unbound symbols in return type
• KT-75757 PL: Error on building fake overrides with unbound symbols in value parameters
• KT-76094 Support new callable reference nodes in partial linkage in Kotlin/Wasm
• KT-78771 KLIBs: Improve zipDirAs() function that is used to produce KLIB (ZIP) archives
• KT-75980 [Klib] Reduce serialized size of IrFileEntries for sparse usage of another source files
• KT-78349 [Tests] Enable Partial Linkage in all tests
• KT-76827 KLIB cross-compilation tests: Don't use IR hashes and metadata hashes in test data
• KT-76266 Move trigger of :tools:binary-compatibility-validator:check to native/native.tests/klib-ir-inliner
• KT-76725 KLIB ABI export in older version: Restore legacy directories
• KT-76061 Add option for suppress warning of missing no-existent transitive klib dependencies
• KT-76471 Partial linkage: add an attribute if a class is invalid
• KT-75192 KLIB reader tends to extract files from the KLIB archive to a temporary directory even when this is not needed

Language Design

• KT-78866 Warn implicit receiver shadowed by context parameter
• KT-54363 Allow using reified types for catch parameters
• KT-32993 Contract to specify that a function parameter is always true inside lambda
• KT-79308 Ability to actualize empty interfaces as Any
• KT-8889 Contracts: if a given function parameter is not null, the result is not null
• KT-22786 Returns are not allowed for expression-body functions and are allowed when an inline lambda is added
• KT-77836 Support using context parameter of a @RestrictsSuspension type as the "restricted coroutine scope"
• KT-77823 Context-sensitive resolution doesn't work for subtypes of sealed types
• KT-75977 False positive unresolved_reference when resolving nested member after a type check
• KT-73557 Allow refining expect declarations for platform groups

Libraries

New Features

• KT-76389 Provide update functions for common atomics
• KT-78581 Add the KClass.isInterface property to Kotlin/JS stdlib
• KT-34132 Contract for ClosedRange.contains(T?) operator
• KT-73853 Provide vararg constructors for Atomic Arrays

Fixes

• KT-71628 Review deprecations in stdlib for 2.1
• KT-76773 stdlib: contextOf's type argument can be inferred via contextOf's context argument
• KT-79489 Generate Stdlib API reference for webMain source set
• KT-79080 Annotate WasmImport and WasmExport as experimental API
• KT-79121 K/Wasm annotate JS-interop API as experimental
• KT-78710 kotlin.wasm and kotlin.wasm.unsafe packages are missing description
• KT-78709 Wasm: KClass.qualifiedName KDoc should reflect the behavior on the target
• KT-78704 CharSequence.subSequence and String.substring behavior with invalid indices differs between targets
• KT-78705 Float.sign and Double.sign behavior for negative zero is not documented
• KT-74543 Support for context parameters in kotlinx-metadata
• KT-78340 String.startsWith KDoc declares invalid exception condition
• KT-78242 Move IrLinkageError to the common non-JVM part of the standard library
• KT-67819 Document collection interfaces contracts

Native

• KT-79075 Stuck on Kotlin_getSourceInfo_core_symbolication
• KT-76178 LLVM Update: symbol '__ZnwmSt19__type_descriptor_t' missing
• KT-78959 Xcode 26: fix GC stress tests
• KT-78734 Finish runtime crash dump generation
• KT-74662 Consider providing a way to enable stack canaries for Kotlin/Native binaries
• KT-77378 [macos] Loading libraries with non resolved paths runs XProtectService
• KT-61549 Kotlin/Native: remove kotlin-native/Interop/JsRuntime
• KT-76563 LLVM Update: numerous "was built for newer 'macOS' version" warnings

Native. Build Infrastructure

• KT-77349 Kotlin/Native: default cache for stdlib is unused

Native. C and ObjC Import

• KT-79571 Xcode 26 beta 4: CInteropKT39120TestGenerated.testForwardEnum failed
• KT-71400 Fix disabled -fmodules testing for stdarg.h

Native. ObjC Export

New Features

• KT-77488 [ObjCExport] Add explicit ObjCBlock parameter name in objc export
• KT-76974 Include conflicting element in objc export warnings
• KT-76338 Native, ObjCExport: Replace name mangling of special method families

Fixes

• KT-55648 Native: produce smaller binaries
• KT-78447 [ObjCExport] Add missing ERROR constructors, align with K1
• KT-78034 ObjCExport: primitive type extension translated as static method
• KT-77781 ObjCExport: support @ObjCName for function parameters and receiver parameters
• KT-77592 KMP plugin uses incorrect Swift name from ObjCName annotation
• KT-77625 ObjCExport: ObjCName annotation adds kotlin name swift_name
• KT-77484 KotlinConf app: Invalid identifiers in ObjCHeader.render
• KT-77500 IllegalStateException during generating ObjC header stubs

Native. Runtime

• KT-79152 Native: unexpected thread state in kotlin::to_string

Native. Runtime. Memory

• KT-78925 Crash SIGABRT on Apple Watch after updating Kotlin to 2.2.0
• KT-76851 Kotlin/Native: GC scheduler MutatorAssists requestAssists and completeEpoch issue
• KT-63143 Kotlin/Native: execute Cleaners on the finalizer thread

Native. Swift Export

• KT-79105 ConcurrentModificationException During Swift Export Caused by Usage of Array
• KT-79227 Swift Export: Fix First Release Issues
• KT-78947 Implement FUS for Swift export
• KT-79521 '_CoroutineScope' is inaccessible due to 'internal' protection level
• KT-79181 Swift Export Fails When Using T: Comparable Generic Constraint in Kotlin Classes
• KT-77650 Swift export execution tests fail with caches enabled
• KT-77634 K/N: swift export tests started failing after hyper-existentials
• KT-77290 Transitive Export on swift export can duplicate declarations

Tools. Build Tools API

• KT-78415 Add a tool for performance reports analysing

Tools. CLI

New Features

• KT-75812 Basic DSL for compiler arguments representation

Fixes

• KT-78318 Unresolved reference when compiling kotlin/JS project on fresh master
• KT-75968 Set proper lifecycle for all existing compiler arguments
• KT-77445 UNRESOLVED_REFERENCE when importing classes from kotlin-stdlib
• KT-77030 Implement setup of HMPP sessions for KLib-based compilers
• KT-78578 Support for placeholder (*) and directory in -Xdump-perf
• KT-78129 Compiler cannot parse -Xfragment-dependency with a comma in the path
• KT-76828 Warning doesn't exist error with -Xwarning-level when the source file has no code
• KT-76957 Incorrect error message when severity is set with -Xsuppress-warning and -Xwarning-level for the same diagnostic
• KT-76829 UnsupportedOperationException when reenabling a taking place warning with -Xwarning-level
• KT-76111 kotlinc warns about org.fusesource.jansi.internal.JansiLoader call to System.load
• KT-76447 Remove -Xjps compiler argument

Tools. Compiler Plugin API

• KT-78279 Make the DiagnosticReporter default way for reporting in IR plugins
• KT-77157 Cannot create a symbol pointer for local class generated by FirFunctionCallRefinementExtension

Tools. Compiler Plugins

New Features

• KT-78038 Make jvm-abi-gen compiler plugin output classloader-friendly
• KT-77339 Update kotlin dataframe dependency to 1.0.0-dev-6925

Fixes

• KT-78969 [DataFrame] Provide source elements for plugin-generated classes
• KT-75265 PowerAssert: the result of invoke is displayed at the same level as value that can be confusing
• KT-78490 "AssertionError: SyntheticAccessorLowering should not attempt to modify other files" when calling protected open composable with default argument
• KT-77626 K2: AssertionError: FUN LOCAL_FUNCTION_FOR_LAMBDA has no continuation
• KT-78671 [DataFrame] Support type parameter types in DataSchema to fix evaluate expression
• KT-78439 DataFrame compiler plugin: Unresolved reference error in REPL
• KT-75876 PowerAssert: don't display results for assertion operator
• KT-75514 [JS][Native] Add IrPreSerializationLoweringFacade to Atomicfu test runners
• KT-77719 Remove suppress INVISIBLE_REFERENCE from DataFrame plugin
• KT-77691 Kotlin DataFrame plugin: IR and FIR anonymous functions have inconsistent receivers
• KT-77455 kotlin-dataframe plugin throws NoClassDefFoundError in IDE
• KT-77437 Kotlin DataFrame: Add configuration key to disable top level properties generator
• KT-74366 Delete kotlin-android-extensions compiler plugin
• KT-73364 Migrate atomicfu sources to new IR parameter API

Tools. Compiler plugins. Serialization

• KT-79695 Serialization does not exclude field-less properties in 2.2.20-Beta2
• KT-73365 Migrate kotlinx-serialization sources to new IR parameter API

Tools. Gradle

New Features

• KT-76421 Stabilize klib cross-compilation on different platforms
• KT-77107 Introduce Kotlin ecosystem plugin

Fixes

• KT-80172 Error message changes depending on the order of applying 'org.jetbrains.kotlin.android' and 'AGP' 9.0+ with built-in Kotlin plugin
• KT-77546 Implement basic support for HMPP compilation scheme support in KGP
• KT-79034 Automatically disable cross compilation if it's not supported on the host
• KT-79408 A lot of errors files are created when compile Kotlin
• KT-77785 Add -fmodules option to CocoaPod dependency by default
• KT-75921 Make Swift Export available by default
• KT-63383 Add compiler performance metrics to Native build reports
• KT-77023 Support creating KotlinJvmAndroidCompilation in KotlinBaseApiPlugin
• KT-74420 Migrate kotlin-parcelize away from AGP's deprecated Variant API
• KT-78233 Add ExperimentalFeatureWarning unique id
• KT-67992 Cleanup deprecated code required for KSP1
• KT-72341 Remove 'kotlin-android-extensions' plugin
• KT-67291 Enable Project Isolation AND/OR Configuration Cache mode for Gradle Integration tests
• KT-78325 Kotlin ecosystem plugin rejects compatible Gradle patch version when DCL is enabled
• KT-76353 Handle migration to stable -jvm-default in KGP: replace deprecated option and suppress warnings
• KT-76797 KGP: StdlibDependencyManagementKt.configureStdlibVersionAlignment() triggering eager configuration realization
• KT-77163 Migrate Swift Export IT to injections
• KT-76282 Add missing Android Gradle plugin versions in tests
• KT-77011 Update build regression benchmarks for 2.2.0 release
• KT-76138 Compile against Gradle API 8.14
• KT-76139 Run integration tests against Gradle 8.14
• KT-77035 A compiler diagnostic isn't reported when its severity is set to warning with Gradle
• KT-76951 'distribution-base' plugin is only applied in Gradle 8.13
• KT-73142 Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder
• KT-76740 Use Problems API for warning introduced in KT-75808
• KT-65271 Gradle: "Mutating dependency DefaultExternalModuleDependency after it has been finalized has been deprecated " with gradle 8.6-rc-3

Tools. Gradle. Cocoapods

• KT-76035 Allow extra command line arguments in PodBuildTask
• KT-78387 Kotlin Cocoapods Gradle Plugin is not compatible with Gradle isolated projects
• KT-79429 K/N: Cocoapods: IllegalArgumentException: "cinterop doesn't support having headers in -fmodules mode" with 2.2.20-Beta1 if explicitly not specify false for 'useClangModules'

Tools. Gradle. Compiler plugins

• KT-66728 Deprecate kapt.use.k2 property

Tools. Gradle. JS

New Features

• KT-75480 Add shared source set for js and wasmJs target
• KT-77073 generateTypeScriptDefinitions() does not add generated .d.ts file to package.json automatically

Fixes

• KT-77319 KJS / Gradle: generateTypeScriptDefinitions() generates wrong file extension when outputting ES modules
• KT-79921 Web Tooling Gradle API does not respect webpack reconfiguration
• KT-76996 Wasm: js tasks triggers wasm subtasks
• KT-79237 Upgrade NPM dependencies versions
• KT-79188 Pre-generated accessors aren't available for webMain / webTest source sets
• KT-78504 [2.2.0-RC3] NPM Tasks in 2.2 RCs produce broken/unusable build cache entries
• KT-77443 NPE: "NullPointerException: Cannot invoke org.gradle.api.tasks.TaskProvider.flatMap(org.gradle.api.Transformer)": ExecutableWasm.optimizeTask is accessed before initialization
• KT-76987 JS, Wasm: Upgrade NPM dependencies
• KT-77119 KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works
• KT-74735 KGP uses Gradle internal CompositeProjectComponentArtifactMetadata

Tools. Gradle. Multiplatform

New Features

• KT-69790 Report human-readable error when declared dependency doesn't support required target types
• KT-76446 Add kotlin-level dependency block to work the same way as commonMain/commonTest dependencies blocks

Fixes

• KT-78297 FileNotFoundException in generateMetadataFile task if non-packed=false
• KT-62294 kotlin-parcelize plugin does not support the new android kotlin multiplatform plugin
• KT-77404 The kotlin-stdlib and annotations are missing from commonTest dependencies with 2.2.0-Beta1
• KT-79559 AGP complains about configurations resolved at configuration time due to KMP partially resolved dependencies diagnostic
• KT-78993 The value for property '*' property 'dependencies' is final and cannot be changed any further
• KT-77843 KGP fails with Gradle 9 on ProjectDependency.getDependencyProject()
• KT-79315 Early task materialization with cross-project configuration breaks configuration due to KMP partial resolution checker
• KT-77466 KMP - testFixturesApi and similar configurations do not affect jvmTestFixtures source set
• KT-78433 Gradle: add tracking of the new KMP compilation scheme to FUS
• KT-78431 Gradle: in-process metadata compiler uses deprecated K2MetadataCompiler
• KT-77414 KMP dependencies in detached source sets cause IDE resolution to write error logs: "kotlin-project-structure-metadata.json (No such file or directory)"
• KT-76200 TestModuleProperties.productionModuleName for JVM module isn't present with 2.1.20-RC

Tools. Gradle. Native

• KT-51301 Remove ability to use Native non-embeddable compiler jar in Gradle plugin
• KT-74864 Enable exporting KDocs by default to ObjC
• KT-77977 "Unknown hardware platform: riscv64" on JVM project build
• KT-78838 Add default 3G max heap size for the commonizer JVM process
• KT-68256 Reduce commonizer max heap size to default 3g and allow users to configure it
• KT-77067 Kotlin Gradle plugin with the configuration cache passes all platform libraries to the compiler when compiling a binary for the first time

Tools. Gradle. Swift Export

• KT-79554 Swift Export status diagnostic is produced even if swift export is not configured
• KT-78385 Swift Export is not compatible with Gradle isolated projects
• KT-79524 NoSuchMethodError: 'java.lang.String org.gradle.api.artifacts.ProjectDependency.getPath() for swift export with dependency export fro gradle < 8.11

Tools. Incremental Compile

• KT-60653 IC does not handle changes in inline functions objects/lambdas correctly
• KT-78807 Changing ABI fingerprint on non-ABI changes when lambda passed to inlined function
• KT-69075 Incremental compilation: smartcast is impossible on field with @JvmName

Tools. JPS

• KT-77347 Support file-less compatible IC approach
• KT-78444 Clean up JPS code base
• KT-75460 Adding @PurelyImplements annotation to a List does not cause incremental recompile of affected files
• KT-50594 Fix org.jetbrains.kotlin.arguments.CompilerArgumentsContentProspectorTest

Tools. Kapt

• KT-79138 K2: KAPT Java Stub Gen: Unresolved reference with @kotlin.Metadata in Java in 2.2.0
• KT-79641 Kapt: too much information is printed in verbose mode
• KT-79136 K2 kapt: unresolved nested class references in annotation arguments are generated without outer class names
• KT-79133 K2 kapt: class literal with typealias is not expanded
• KT-77853 K2 KAPT: backend internal error: exception during IR fake override builder
• KT-73322 Migrate FirKaptAnalysisHandlerExtension compilation pipeline to the phased structure

Tools. Maven

• KT-77587 Maven: Introduce Kotlin daemon support and make it enabled by default
• KT-63688 Remove JS-related stuff from kotlin-maven-plugin

Tools. Maven. Compiler plugins

• KT-77511 Add maven plugin for Kotlin DataFrame plugin

Tools. REPL

• KT-78755 [K2 Repl] Redeclaring variables does not work
• KT-75632 Contunue deprecation of the REPL built into kotlinc
• KT-77470 [K2 Repl] Lazy Properties crash code generation
• KT-76507 [K2 Repl] Delegated properties are not visible in the next snippet
• KT-76508 [K2 Repl] Annotations on property accessors are not resolved
• KT-75672 [K2 Repl] Serialization plugin crashes compiler backend

Tools. Scripts

• KT-78378 "Explain" feature of the kotlin script fails on hidden variables

Tools. Statistics (FUS)

• KT-79455 [FUS] Collect KSP plugin version
• KT-77755 [FUS Pipeline] Fus file format
• KT-77995 Do not collect FUS metrics on TeamCity

Tools. Wasm

• KT-76842 K/Wasm: serve project sources in *DevRun tasks by default
• KT-78921 K/Wasm: don't generate empty yarn.lock file
• KT-75714 Wasm: Move tooling NPM dependencies outside user project
• KT-70013 .gradle/yarn and .gradle/node are part of Gradle configuration cache
• KT-76838 K/Wasm: No possible to set downloadBaseUrl to null for D8 and Binaryen
• KT-76948 Wasm: Rename kotlinBinaryenSetup and kotlinD8Setup

v2.2.10: Kotlin 2.2.10

Changelog

Compiler

• KT-79276 Dexing fails with "Cannot read field X because is null" with 2.2.0
• KT-79442 "Multiple annotations of type kotlin.coroutines.jvm.internal.DebugMetadata": 2.2.0-Beta1 generates broken code with JVM default suspend methods in interfaces
• KT-78815 Symbol not found: __ZNSt3__117bad_function_callD1Ev error on iOS 15.5 simulator in Xcode 16.3 after update to 2.2.0-Beta2
• KT-78501 K2: Missing [ABSTRACT_SUPER_CALL] diagnostics for delegated interface method leads to AssertionError: isCompiledToJvmDefault during IR lowering
• KT-78479 IR lowering failed / Unexpected null argument for composable call
• KT-76477 Kotlin/Native: fix compiler performance reporting in sources->klib and klibs->binary
• KT-78736 Missing [NOT_YET_SUPPORTED_IN_INLINE] diagnostics because of incorrect context update
• KT-77685 "IllegalArgumentException: Sequence contains more than one matching element"
• KT-76365 K2: Missing ABSTRACT_SUPER_CALL
• KT-78352 False-positive IDENTITY_SENSITIVE_OPERATIONS_WITH_VALUE_TYPE when comparing with equality operator (==)

Compose compiler

• KT-78479 Ensure that default transform affects functions entered through a call
• KT-78490 Fix visibility for default wrappers of protected methods
• b/408492167 Emit parameter names in Compose source information

JavaScript

• KT-79050 KJS / IC: "Unexpected body of primary constructor for processing irClass"
• KT-79089 KJS: Could not load reporter / Cannot find module 'mocha' when running jsNode tests

Native

• KT-79075 Stuck on Kotlin_getSourceInfo_core_symbolication
• KT-76178 LLVM Update: symbol '__ZnwmSt19__type_descriptor_t' missing

Native. Runtime. Memory

• KT-78925 Crash SIGABRT on Apple Watch after updating Kotlin to 2.2.0

Tools. CLI

• KT-77445 UNRESOLVED_REFERENCE when importing classes from kotlin-stdlib
• KT-78263 java.lang.NoClassDefFoundError: Could not initialize class com.intellij.psi.impl.PsiSubstitutorImpl
• KT-78318 Unresolved reference when compiling kotlin/JS project on fresh master

Tools. Compiler Plugins

• KT-78490 "AssertionError: SyntheticAccessorLowering should not attempt to modify other files" when calling protected open composable with default argument
• KT-78038 Make jvm-abi-gen compiler plugin output classloader-friendly

Tools. Gradle

• KT-77023 Support creating KotlinJvmAndroidCompilation in KotlinBaseApiPlugin

Tools. Gradle. JS

• KT-78504 [2.2.0-RC3] NPM Tasks in 2.2 RCs produce broken/unusable build cache entries

Tools. Gradle. Multiplatform

• KT-77466 KMP - testFixturesApi and similar configurations do not affect jvmTestFixtures source set
• KT-68646 Compose extension's metrics/reports dir should use subdirs based on target

Tools. Gradle. Native

• KT-77977 "Unknown hardware platform: riscv64" on JVM project build

Tools. Incremental Compile

• KT-78807 Changing ABI fingerprint on non-ABI changes when lambda passed to inlined function

Tools. Kapt

• KT-77853 K2 KAPT: backend internal error: exception during IR fake override builder
• KT-79138 K2: KAPT Java Stub Gen: Unresolved reference with @kotlin.Metadata in Java in 2.2.0

v2.2.0: Kotlin 2.2.0

Changelog

Analysis API

• KT-73337 Migrate analysis sources to new IR parameter API
• KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project
• KT-74246 KaVisibilityChecker.isVisible is inefficient with multiple calls on the same use-site
• KT-57733 Analysis API: Use optimized ModuleWithDependenciesScopes in combined symbol providers
• KT-69535 Redesign 'containingSymbol'
• KT-69950 Analysis API: Introduce isSubtypeOf(ClassId)
• KT-68393 Analysis API: Rename KaClassLikeSymbol. classIdIfNonLocal to classId
• KT-62924 Analysis API: rename KtCallableSymbol.callableIdIfNonLocal -> callableId

Analysis API. Code Compilation

• KT-75502 K2: IDEA hangs when evaluating inside kotlin-stdlib modules in the Kotlin project
• KT-73077 Evaluation of inline functions is broken inside Kotlin project and Amper module in Idea sources
• KT-73936 K2: CyclicInlineDependencyException: Inline functions have a cyclic dependency in evaluator
• KT-74582 InterpreterMethodNotFoundError when trying to evaluate simple expressions after recent fixes
• KT-74524 Compilation exception with incorrect JvmName annotation arguments
• KT-74443 Compilation peer collector ignores inline property accessors

Analysis API. FIR

New Features

• KT-73493 Support context parameters

Performance Improvements

• KT-75790 Experiment with increasing DEFAULT_LOCKING_INTERVAL time
• KT-72159 LLFirCompilerRequiredAnnotationsTargetResolver: consider rewriting it to use honest jumping locks

Fixes

• KT-76331 Cleanup FileStructureElement for classes
• KT-73117 K2 AA: Exception "Setter is not found" when val has a setter without body
• KT-76540 K2: Missing library dependency on Android SDK from androidx.activity-1.8.2 causes LiveEdit failures
• KT-73266 K2. "Declaration should have non-local container" with unclosed annotation on top-level function
• KT-76432 JavaClassUseSiteMemberScope: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl
• KT-76217 K2 AA: "No fir element was found for KtParameter" with multiple context parameter lists
• KT-74740 Highlighting is broken after the built-in serialization refactoring
• KT-76366 ContextCollector: annotations on class members don't have the class as implicit receiver
• KT-76352 ContextCollector: wrong class annotation context in BODY mode
• KT-76341 ContextCollector: support dangling modifiers
• KT-76332 "Declaration should have non-local container" for declaration inside file annotation
• KT-76115 Disable FirElementBuilder#getFirForElementInsideAnnotations optimization for files, classes and scripts
• KT-76347 ContextCollector: avoid resolution for enum entry annotations
• KT-76272 Cleanup AbstractFileStructureTest
• KT-75542 K2 AA: "FirDeclaration was not found for class KtNamedFunction, fir is class FirErrorExpressionImpl" for unclosed annotation on member function
• KT-73719 K2. "FirDeclaration was not found for class KtDestructuringDeclaration, fir is class FirBlockImpl" on incorrect chain call
• KT-72908 K2 Analysis API: "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtFunctionLiteral" with non-local destructuring declaration without initializer before init block
• KT-75532 ContextCollector: scope for an anonymous function type parameter contains regular parameters
• KT-74508 FirElementBuilder#findElementInside should reuse logic from KtToFirMapping#getFir
• KT-73066 [LL] Enable low-level-api-fir-native even with the disabled native part
• KT-75132 Investigate failures of sandbox diagnostic test
• KT-75130 Set up LL FIR tests for sandbox test data
• KT-73386 Standardize LL FIR test for compiler test data
• KT-75125 ISE “Value classes cannot have 0 fields” on instantiating inline class without fields
• KT-75179 ContextCollector: support error properties
• KT-74632 K2: ISE FirLazyDelegatedConstructorCall should be calculated before accessing
• KT-74818 K2 AA: "FirDeclaration was not found for class KtTypeParameter, fir is null" with TYPE_PARAMETERS_NOT_ALLOWED on anonymous function
• KT-73183 Support context parameters in ContextCollectorVisitor
• KT-60350 K2 IDE: top level destructuring RHS should be resolvable
• KT-74794 K2: FirLazyExpression should be calculated before accessing with context parameter and implicit return type
• KT-72938 Get rid of KaFirAnnotationListForReceiverParameter
• KT-73727 Exception in implicit type resolution

Analysis API. Infrastructure

• KT-74917 [Analysis API, Test Framework] Introduce a way to acquire PsiFile for a given TestFile in KtTestModule

Analysis API. Light Classes

• KT-73405 Get rid of KtElement#{symbolPointer, symbolPointerOfType} API usages
• KT-75391 Reduce the amount of psi-based logic in light classes
• KT-70001 SLC adds @Override with zero text offset on override member
• KT-75755 K2. False positive red code on vararg parameters in Kotlin class with @JvmOverloads when called from Java
• KT-75397 Constructors and functions with non-last vararg parameters are treated as varargs
• KT-74868 Support context parameters
• KT-74733 SymbolPsiLiteral.text == value for Java constant
• KT-74620 Delegated functions with value classes are present in light classes
• KT-74595 Static functions with value classes are present in light classes
• KT-74284 Synthetic data class methods using value class types present in LC

Analysis API. Providers and Caches

Performance Improvements

• KT-62115 Analysis API: Package providers are not cached per search scope
• KT-74463 Analysis API: LLNativeForwardDeclarationsSymbolProvider queries its cache even when the ClassId cannot represent a native forward declaration

Fixes

• KT-74541 Analysis API: Include files generated by resolve extensions in KaModule content scopes
• KT-64236 Analysis API: Introduce a separate module for fallback dependencies of library source modules
• KT-74090 Analysis API: Support dumb mode (restricted analysis)
• KT-63780 Analysis API: Invalidate resolvable library sessions when binary library modules are modified
• KT-72388 KaFirStopWorldCacheCleaner: Control-flow exceptions
• KT-74943 Analysis API: Replace KotlinGlobalModificationService with simpler global modification event publishing and listener-based modification trackers
• KT-70518 K2: Analysis API: Access indices outside of ConcurrentMap computation in symbol providers
• KT-74302 Analysis API: LLFirProvider should disregard self-declarations in getFirClassifierBy*
• KT-67868 Analysis API: Improve the architecture of LLFirKotlinSymbolProviders

Analysis API. Standalone

• KT-72810 withMultiplatformLightClassSupport is inconvenient in Standalone

Analysis API. Stubs and Decompilation

• KT-71787 PsiRawFirBuilder.Visitor#visitStringTemplateExpression forces AST loading
• KT-68484 K2 IDE, Analysis API: "We should be able to find a symbol for function" for getting KaType of Iterable<T>.map(transform: (T) -> R) parameter in J2K

Analysis API. Surface

New Features

• KT-74475 Add isInline for KaPropertySymbol
• KT-75063 KaScopeContext: support context parameters

Performance Improvements

• KT-73669 Support psi-based symbol pointer for implicit primary constructors
• KT-76008 Provide PSI-based implementation for KaFirNamedClassSymbol#companionObject
• KT-70165 Introduce PSI-based KaSymbols for K2

Fixes

• KT-72730 K2: "Unexpected owner function: KtNamedFunction" on vararg val parameter in function
• KT-75123 K2. KaFirNamedFunctionSymbol should contain a receiver
• KT-75894 Cannot build KaFirJavaFieldSymbol for FirFieldImpl
• KT-75115 Analysis API: The JavaModuleResolver compiler class is leaked to Analysis API platform implementations
• KT-76018 K2: Stop the wold leads to deadlock/freeze
• KT-76011 KaFirNamedClassSymbol#companionObject doesn't provide generated objects generated by compiled plugins
• KT-72482 "KotlinIllegalArgumentExceptionWithAttachments: Expected all candidates to have same callableId but some of them but was different" on trying to add the import
• KT-75586 KaFirPropertyGetterSymbol#isInline and KaFirPropertySetterSymbol#isInline is incorrect for accessors with explicit modifier
• KT-58572 Analysis API: Enforcing STATUS resolve in 'KtFirNamedClassOrObjectSymbol.visibility' may cause lazy resolve contract violation
• KT-75574 Recognize injected code fragment copies
• KT-75573 Recognize physical file copies as dangling files
• KT-74801 Analysis API: Publish/subscribe to modification events with a single message bus topic
• KT-73290 Analysis API: Improve the architecture of content scopes and resolution scopes
• KT-68901 Constructor delegation call receiver missing in fir implementation
• KT-72639 Support context parameter API
• KT-73112 AA: FirExpression.toKtReceiverValue should handle context receivers properly
• KT-74905 Cannot find context receiver in FIR declaration
• KT-74563 createPointer is overloaded not for all implementations
• KT-73722 Analysis API: Automatically check that the API surface is fully documented
• KT-65065 Provide KtTypeReference#getShortTypeText()

Backend. Native. Debug

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function

Backend. Wasm

New Features

• KT-59032 Support instantiation of annotation classes on WASM

Fixes

• KT-77622 K/Wasm: investigate CMP crash on mobile Safari
• KT-76747 [Wasm] Wasm name section absent for wasm structs
• KT-76701 K/Wasm: custom formatters are not loaded when a project is built with incremental compilation
• KT-66081 K/WASM: 0/0, 5/0 and 5%0throw not ArithmeticException, but RuntimeError
• KT-76287 [Wasm] Enable stdlib and kotlin.test tests after compiler bootstrap
• KT-75871 [Wasm] Implement new RTTI approach
• KT-75872 Wasm / IC: IllegalStateException: IC internal error: can not find library
• KT-74441 K/Wasm: incorrect 1e-45.toString()
• KT-59118 WASM: floating point toString inconsistencies
• KT-68948 Wasm: float from variable is printed with many decimal points
• KT-69107 [wasm] Seemingly incorrect rounding
• KT-73362 Migrate K/Wasm sources to new IR parameter API

Compiler

New Features

• KT-70722 Implement better Kotlin warnings for value classes and JEP 390 (Warnings for Value-Based Classes)
• KT-71768 Enable -Xjvm-default=all-compatibility by default to generate JVM default interface methods
• KT-54205 Support jakarta Nullability annotations
• KT-57919 Store all annotations in Kotlin metadata on JVM under a flag
• KT-73255 Change defaulting rule for annotations
• KT-74382 Annotating Java record components for @JvmRecord data class
• KT-74811 Prohibit usages of @MustUseValue / @IgnorableValue if RV checker is not enabled
• KT-74806 Implement feature flag for improved unused return value checker
• KT-74809 Support unnamed local variables
• KT-73508 Add a warning diagnostic for using kotlin.concurrent.AtomicRef
• KT-72941 ANNOTATIONS_ON_BLOCK_LEVEL_EXPRESSION_ON_THE_SAME_LINE missing in K2
• KT-74497 Warn about incompatible Kotlin and Java targets in annotations
• KT-75061 Support context-sensitive resolution in type position
• KT-75315 Support context-sensitive resolution in the call-argument position
• KT-75316 Support context-sensitive resolution for expression-position with expected type
• KT-76088 Support context-sensitive resolution for annotation arguments
• KT-74049 Introduce special override rule to allow overriding T! with T & Any

Performance Improvements

• KT-76395 Performance degradation on 28.03.2025
• KT-76422 FirJavaFacade#createFirJavaClass: do not compute super type references right away
• KT-75957 K2: PsiRawFirBuilder.Visitor#toFirExpression forces AST loading via getSpreadElement
• KT-74824 Exponential performance caused by nested flexible types
• KT-62855 K2: extra allocation for SAM conversion compared to K1
• KT-74977 K/N: support stack array for Array(size) call
• KT-74369 Exponential compiler memory usage in specific situations with type inference

Fixes

• KT-76606 Enable 'Indy: Allow lambdas with annotations' by default
• KT-77301 False positive Context Parameter resolution when using DslMarker
• KT-74389 K2: False positive NON_EXPORTABLE_TYPE on non-Unit Promise<...> in K/JS
• KT-77219 "@Composable annotation is not applicable" on vararg @Composable () -> Unit in Kotlin 2.2.0
• KT-76357 K2: a nested class annotation observes member declarations of the outer class
• KT-72734 Support new callable reference nodes in Kotlin Native
• KT-74421 K2: Missing "val cannot be reassigned" when trying to assign a value to parent's "val"
• KT-63720 Coroutine debugger: do not optimise out local variables
• KT-74470 NSME on calling in runtime internal constructor of value class with default arg from tests
• KT-77640 Context parameters: using 'contextOf()' function leads to [NO_CONTEXT_ARGUMENT]
• KT-73909 Add an inspection discouraging usage of kotlin.concurrent Native atomics in favor of the new atomics
• KT-76583 CCE: suspend lambda attempts to unbox value class parameter twice after lambda suspended
• KT-76663 KJS: KotlinNothingValueException caused by expression return since 2.1.20
• KT-75457 Native: cache machinery uses stdlib cache with default runtime options even if custom runtime options are supplied when partial linkage is disabled
• KT-76615 K2: "IllegalArgumentException: Inline class types should have the same representation: Lkotlin/UByte; != B" for mixed Java/Kotlin code
• KT-77220 Annotation with EXPRESSION is not allowed on lambdas in Kotlin 2.2.0
• KT-76381 K2: Expected expression 'FirPropertyAccessExpressionImpl' to be resolved
• KT-74739 Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION_REFERENCE"
• KT-74325 Explicit API mode does not enforce explicit return types for extension properties
• KT-77259 Confusing message for ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD
• KT-73771 K2: Infinite compilation caused by buildList without type
• KT-61258 Kotlin/Native: CLASS CLASS name: modality:FINAL visibility:local superTypes:[.Base]
• KT-75317 Kotlin/Native: segfault in kotlin::gc::Markkotlin::gc::mark::ConcurrentMark::MarkTraits
• KT-75965 The iOS app did not run successfully in Release mode
• KT-77397 Report UNSUPPORTED_CONTEXTUAL_DECLARATION_CALL when calling declaration with contextual function type in signature
• KT-77137 K2: Controversial behavior allows resolving annotation arguments on a companion inside it
• KT-77150 Native: compilation fails with an assertion error
• KT-51960 ClassCastException: Inline function with both context and extension receiver produces this when invoked
• KT-73611 Remove -Xextended-compiler-checks in favor of a deprecation cycle
• KT-74649 Deprecate language versions 1.8 and 1.9
• KT-77283 Binary compatibility of FirDeclarationChecker
• KT-73445 K2: do not report "cannot infer visibility" when inheriting multiple implementations
• KT-75945 Indy: Allow lambdas with annotations
• KT-76898 K2: ClassCastException when data class shadows supertype's componentX method with wrong type
• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated
• KT-76805 Wrong NPE occurs when assigning synthetic properties with platform types in Kotlin 2.1.20
• KT-76171 "KotlinIllegalArgumentExceptionWithAttachments: Expected expression 'FirSingleExpressionBlock' to be resolved"
• KT-77078 K2: anonymous object is wrongly allowed to implement interfaces by unsafe Delegation
• KT-72722 Treat 'copy' calls of a data class as explicit constructor usages
• KT-77001 Leave ForbidParenthesizedLhsInAssignments as a warning
• KT-75828 Store backing field/delegate annotations and extension receiver annotations in metadata
• KT-58369 K2: enable DFA warnings
• KT-51258 Annotations should go before context receivers
• KT-76253 K2 Compiler: Less precise diagnostic COMPONENT_FUNCTION_AMBIGUITY for flexible type
• KT-59526 Store annotation default values in metadata on JVM
• KT-63850 K2: setter with an annotated parameter has isNotDefault == false flag in metadata
• KT-75712 -Wextra: false positive UNUSED_LAMBDA_EXPRESSION on functional type variable assignment with inferred type
• KT-4779 Generate default methods for implementations in interfaces
• KT-69624 Debugger: Missing local variable in Variables view (inline function)
• KT-75518 NO_CONTEXT_ARGUMENT should report the name of the context parameter in addition to the type
• KT-76199 Introduce -Xcontext-sensitive-resolution compiler flag
• KT-75553 MISSING_DEPENDENCY_SUPERCLASS and MISSING_DEPENDENCY_SUPERCLASS_WARNING is reported at the same time on the same element
• KT-76159 Obsolete error "'@JvmDefaultWithCompatibility' annotation is only allowed on interfaces" should be removed
• KT-76660 False negative RETURN_NOT_ALLOWED in lambda in default argument leads to NoClassDefFoundError: $$$$$NON_LOCAL_RETURN$
• KT-76301 Fail to infer types after syntactical change
• KT-74999 K2: KotlinNothingValueException within Extension Function
• KT-76675 KIAEWA exception at KaFirDataFlowProvider with non-local return from nested inline call
• KT-75756 Backend Internal error: Exception during IR lowering when trying to access variable from providedProperties in class within kotlin custom script
• KT-76345 Enhance variable fixation
• KT-76578 [FIR, K1/K2 Regression] lateinit is allowed on loop parameters
• KT-76448 FirOverrideChecker: class ClsMethodImpl is not a subtype of class KtNamedDeclaration for factory VIRTUAL_MEMBER_HIDDEN
• KT-73360 Migrate K/JVM sources to new IR parameter API
• KT-74852 Kotlin/Native: allow caches for thread state checker and sanitizers
• KT-76130 IR evaluator does not support array literals in annotation parameter default values
• KT-76436 Missing K2 checker: non-local return through lambda passed to inline f/o
• KT-74326 False negative: no variable must be initialized error though code doesn't compile
• KT-76572 FIR_NON_SUPPRESSIBLE_ERROR_NAMES does not contain deprecation errors
• KT-75704 Refactor FirWhenSubjectExpression
• KT-76284 Flexible captured type is not approximated in receiver position
• KT-76192 RETURN_TYPE_MISMATCH with same expected and actual type: nullability of actual type is omitted
• KT-75944 Allow using invokedynamic for lambdas with no 'Runtime' level retention annotations
• KT-76396 FirIntegerConstantOperatorScope: NoSuchElementException: Collection contains no element matching the predicate
• KT-76209 CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-59506 Context receivers: Unable to use trailing comma in receiver list
• KT-46119 NONE_APPLICABLE instead of NAMED_ARGUMENTS_NOT_ALLOWED with overloaded Java constructor call
• KT-75503 Run lazy resolution in CallableCopyTypeCalculator and use withForcedTypeCalculator everywhere in checkers
• KT-76485 Don't report EXTENSION_SHADOWED_BY_MEMBER if extension can be called with named arguments
• KT-76154 False positive "EXTENSION_SHADOWED_BY_MEMBER" when extension adds default values to parameters
• KT-76527 False positive UNSUPPORTED_CONTEXTUAL_DECLARATION_CALL with -Xcontext-receivers and implicit invoke
• KT-63246 K2: False positive NOTHING_TO_OVERRIDE in generic property with context receiver in non generic class extending generic class
• KT-58534 K2: "Argument type mismatch" with typealias to context receiver functional type
• KT-71792 Switch latest stable version in Kotlin project to 2.2
• KT-74827 CompilationErrorException : Could not load module in an attempt to find deserializer when trying to evaluate an expression
• KT-70352 K2: False-negative CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-71481 K2: drop pre-1.6 language features from compiler code
• KT-74454 Support trailing comma in context parameters
• KT-74069 False positive UNUSED_EXPRESSION due to Long/Int conversion
• KT-74337 Local Delegated properties don't preserve their annotations and don't show up in reflection
• KT-55187 Context receivers in function types can have labels
• KT-58498 Context receivers: ClassCastException with object and extension function in interface
• KT-58165 K2: "IllegalArgumentException: No argument for parameter VALUE_PARAMETER" on overridden contextual property
• KT-75234 Add error for callsInPlace contracts on context parameters
• KT-73805 K2: Investigate missing diagnostic in implicit invoke call on context function type with receiver from module with disabled context parameters
• KT-41934 NI: a type variable for lambda parameter has been inferred to nullable type instead of not null one
• KT-75983 Backend Internal error: Exception during IR lowering 'IllegalStateException: Internal error: cannot convert Any to Int'
• KT-75535 Compilation of typealias does not check for clashes
• KT-72313 K2 IDE / KMP Debugger: Evaluation of inline functions declared in a common source set causes a crash
• KT-76290 False positive UNUSED_EXPRESSION while returning Unit in the when branches
• KT-32358 NI: Smart cast doesn't work with inline function after elvis operator
• KT-76316 K2: Missing NON_PUBLIC_CALL_FROM_PUBLIC_INLINE on object extending private class in public inline function
• KT-76324 Frontend diagnostic says "... this will be an error in Kotlin N.M" but N.M is already released
• KT-76058 PCLA: compile-time failure on calling a higher-order function from another module inside a lambda assigned to a variable of a type with a postponed type variable
• KT-75571 K2: type mismatch error provides unsubstituted types
• KT-31391 'Recursive call is not a tail call' with elvis operator in tailrec function
• KT-73420 False-positive NON_TAIL_RECURSIVE_CALL on tailrec function with elvis in the return statement
• KT-75815 Disable warnings about different context parameter names in overrides
• KT-75169 Unnecessary EXTENSION_SHADOWED_BY_MEMBER on generic declarations
• KT-75483 Native: redundant unboxing generated with smart cast
• KT-76339 K2: Dangling modifier list is missed for enum entries in PSI mode
• KT-75513 Avoid overrides traversal without preinitialization
• KT-74587 Report an error when JvmDefaultWithoutCompatibility is used with -Xjvm-default=all
• KT-76257 Annotations with class references are not supported when marking IR declarations as visible to metadata
• KT-71793 Drop language versions 1.6 and 1.7
• KT-59272 Incorrect bytecode generated: wrong line number table after condition
• KT-69248 K2: IAE “class KtDotQualifiedExpression is not a subtype of class KtCallExpression for factory ENUM_CLASS_CONSTRUCTOR_CALL” with qualified enum constructor call
• KT-73778 Kotlin Debugger: NSFE on accessing private property from dependencies during evaluation
• KT-74131 Incorrect line numbers for static initializer with delegated local variable
• KT-76320 K2: PsiRawFirBuilder: import alias triggers ast loading
• KT-63851 K2: No setterValueParameter in metadata for property setter with an annotated parameter
• KT-55083 JVM: AbstractMethodError caused by lambda with sealed base interface and fun sub interface and overridden method
• KT-16727 Names for anonymous classes in interfaces are malformed on JDK 8
• KT-12466 NoClassDefFoundError: B$DefaultImpls on super interface call through K-J-K inheritance
• KT-71002 Possible inheritance from nullable type through typealias
• KT-75293 K2: Missing [HAS_NEXT_FUNCTION_TYPE_MISMATCH] diagnostics
• KT-75498 Forbid .declarations access from checkers
• KT-72335 KotlinIllegalArgumentExceptionWithAttachments when using illegal selector
• KT-68375 K2: FirPrimaryConstructorSuperTypeChecker fails on generated superclasses
• KT-71718 K2: drop TypePreservingVisibilityWrtHack
• KT-75112 FE resolves wrong receivers order for property passed to delegate
• KT-75924 K2. Incorrect generic type Inference "R? & Any" appears for "Add explicit type arguments"
• KT-75969 java.lang.IllegalArgumentException: source must not be null on red code
• KT-75322 ConeDiagnosticToFirDiagnosticKt: source must not be null
• KT-73800 Wrong method executed on super call in -Xjvm-default=all/all-compatibility with an extraneous super-interface
• KT-38029 Wrong method executed on super call in diamond hierarchy with covariant override
• KT-75242 Any use-site target can be applied to a lambda and an expression
• KT-73051 incorrect direction of subtyping violation in type mismatch error's message for A<X> </: A<Y> given a Tv <: Rv == C constraint from a lambda return position
• KT-75090 Argument type mismatch: actual type is 'SuspendFunction0', but 'SuspendFunction0' was expected when anonymous function is passed to function expecting suspend function type
• KT-74956 K2: No USAGE_IS_NOT_INLINABLE with compiling an inlined function call
• KT-76049 K2: drop explicitTypeArgumentIfMadeFlexibleSynthetically creation when DontMakeExplicitJavaTypeArgumentsFlexible is enabled
• KT-76055 K2: drop prepareCustomReturnTypeSubstitutorForFunctionCall logic when DontMakeExplicitJavaTypeArgumentsFlexible is enabled
• KT-76057 K2: don't do reverse Java overridability checks when DontMakeExplicitJavaTypeArgumentsFlexible is enabled
• KT-75197 K2: Missing [COMPARE_TO_TYPE_MISMATCH] diagnostics
• KT-75639 Inline context function leads to ClassCastException
• KT-75677 K2: change runtime behavior of KT-75649 case in 2.2
• KT-75961 K2: PsiRawFirBuilder.Visitor#visitSimpleNameExpressionforces AST loading via getReferencedNameElement().node.text
• KT-67869 Make inference for lambda working consistently inside and outside of the call
• KT-74885 K2: IAE "source must not be null" in FirCyclicTypeBoundsChecker
• KT-75578 K2: False negative [SUPER_CALL_WITH_DEFAULT_PARAMETERS] when calling the upper-class implementation of a method with the default value argument
• KT-73954 Generate implementations in classes for inherited non-abstract methods in -Xjvm-default=all-compatibility
• KT-75173 Context parameters: KotlinIllegalArgumentExceptionWithAttachments if you override function with value/extension parameter by fun with context
• KT-75742 Native: "IllegalArgumentException: unknown pass name '' " when specifying an empty list of LLVM passes
• KT-74819 K2: False-positive overload resolution ambiguity for flatMap inside PCLA
• KT-75093 K2 IDE: "Unreachable code" highlighting range is confusing
• KT-74572 Context parameters: contracts don't work with context parameters
• KT-74765 Move K1 lazy IR implementation from 'ir.tree' to 'psi2ir'
• KT-71425 IR Inliner: investigate return type of an inlined block
• KT-74764 Native: merge init nodes generated within the same LLVM module for the same klib
• KT-75561 K/N: place InteropLowering after UpgradeCallableReferences phase
• KT-73369 K/N: move interop lowering up the pipeline
• KT-75517 K2: Refactor FirCallableSymbol.resolvedContextParameters to return symbols
• KT-75821 K2: REPL resolution doesn't take into account the property type when processing its initializer
• KT-75705 IllegalArgumentException when isInitialized is used with java field
• KT-75334 Java target shouldn't be specified if Kotlin target isn't specified
• KT-75157 Missing PARAMETER_NAME_CHANGED_ON_OVERRIDE and DIFFERENT_NAMES_FOR_THE_SAME_PARAMETER_IN_SUPERTYPES for context parameters
• KT-75160 Check usages of value parameters in checkers and adapt to context parameters
• KT-75729 KtPsiFactory: no type-safe way to create triple-quoted KtStringTemplateExpression
• KT-75040 Unify subject and subjectVariable in FirWhenExpression
• KT-75323 FirSyntheticProperty: Unexpected status. Expected is FirResolvedDeclarationStatus, but was FirDeclarationStatusImpl
• KT-75602 Introduce concept of shared library session in Fir sessions
• KT-75509 PARAMETER_NAME_CHANGED_ON_OVERRIDE is reported randomly
• KT-75124 IAE “class org.jetbrains.kotlin.psi.KtContextReceiver is not a subtype of class org.jetbrains.kotlin.psi.KtParameter for factory EXPOSED_PARAMETER_TYPE” on private context receiver
• KT-73585 K2: ABSTRACT_SUPER_CALL is not reported
• KT-75531 K2 REPL: local name doesn't shadow one from implicit receiver
• KT-73359 Migrate frontend sources to new IR parameter API
• KT-75380 K2: Modality is configured incorrectly for some FirDefaultPropertyAccessor
• KT-75526 Regression in K2 scripting: local name doesn't shadow one from the implicit receiver
• KT-59379 K2: Missing MIXING_NAMED_AND_POSITIONED_ARGUMENTS
• KT-75106 K2: type parameters of anonymous functions are unresolved
• KT-73387 Unexpected implicit type during enhancement
• KT-72618 Cannot define operator inc/dec in class context
• KT-74546 Serialize context parameters to metadata
• KT-68768 K2: unsuccessful inference fork with jspecify annotations
• KT-75345 Add a test for KT-42271
• KT-75012 K2: Compiler crash on dynamic == null
• KT-75195 IllegalStateException: No value for annotation parameter when @all meta-target is used with annotation with constructor
• KT-75163 WRONG_ANNOTATION_TARGET_WITH_USE_SITE_TARGET for @all meta-target although there are applicable targets
• KT-75198 @all meta-target should be forbidden for delegated properties
• KT-74958 K2: UNEXPECTED_TRAILING_LAMBDA_ON_A_NEW_LINE isn't reported on accidental trailing closure
• KT-74982 Improve UNSUPPORTED message handling
• KT-75111 False negative "This declaration needs opt-in" for usage of enum entry with OptIn marker in another module
• KT-74924 Infinite recursion in substitution of captured type with recursive supertype
• KT-75289 NPE: getParent(...) must not be null
• KT-75275 Inline class member inherited from interface is not mangled in '-Xjvm-default=all-compatibility'
• KT-74340 FIR: folding binary expression chains for psi parser
• KT-73831 Do not choose field target in annotation classes
• KT-73494 Enable first-only-warn annotation defaulting mode
• KT-75174 K2: incorrect influence of return type nullability on required receiver type in KJK hierarchy with property
• KT-74920 Overriding T! with T & Any is not allowed to the extension property receiver type
• KT-75150 False ambiguous context parameter reported because context is not chosen via generic parameter
• KT-74965 CLI compiler doesn't report syntax errors for JS, Metadata backends if light-tree mode is disabled
• KT-74303 K2 IDE / Kotlin Debugger: AE “Trying to inline an anonymous object which is not part of the public ABI” on evaluating private inline function with object inside
• KT-75177 NoSuchMethodError on suspend default interface method fake override returning inline class in -Xjvm-default=all-compatibility
• KT-74718 K/N: Move TestProcessor phase to the top of the pipeline
• KT-75015 Context parameters: it is possible to declare anonymous function with modifiers but they don't have any effect
• KT-75092 K2: Missing errors for modifiers on anonymous function in statement position
• KT-75009 Context parameters: context is unresolved inside anonymous function if passed as an argument
• KT-75017 Context parameters: "IllegalStateException: Cannot find variable a: R|kotlin/String| in local storage " when context from another local function is called
• KT-75154 Context receiver deprecation warning should depend on langauge version, not on LATEST_STABLE
• KT-74979 Context parameters: anonymous functions with a context aren't parsed in complex cases
• KT-74673 K2: ClassCastException when passing suspending functional interface with generic
• KT-74469 K2: False positive: "Argument type mismatch" during Java interop
• KT-75105 K2: False negative NAME_IN_CONSTRAINT_IS_NOT_A_TYPE_PARAMETER for type constraint of anonymous function
• KT-74929 False positive TYPE_PARAMETER_OF_PROPERTY_NOT_USED_IN_RECEIVER if it is used with T&Any
• KT-74227 K2: "Cannot infer type for this parameter. Please specify it explicitly" caused by lambda in another lambda with a parameterized function type
• KT-64558 K2 compiler does not report UNNECESSARY_SAFE_CALL, UNNECESSARY_NOT_NULL_ASSERTION, USELESS_ELVIS, while K2 IDEA does
• KT-74728 K2: Java method overriding Kotlin method with receiver loses vararg modifier
• KT-70789 CLI error "mixing legacy and modern plugin arguments is prohibited" on using -Xcompiler-plugin unless default scripting plugin is disabled
• KT-72829 Forbid 'entries' name of enum entry, and deprioritize it in resolve
• KT-75037 K2: IrGeneratedDeclarationsRegistrar.registerFunctionAsMetadataVisible doesn't handle extension receivers and context parameters
• KT-73149 Annotations support for context parameters
• KT-74798 Report error on local contextual properties
• KT-74092 Context parameters: it is not possible to declare an anonymous function with a context
• KT-52152 K2: Investigate suspicious code at SAM conversions
• KT-75016 K2: BackendException when context var property is declared in interface
• KT-74474 K2: Report more precise diagnostic when last expression of non-unit lambda is a statement
• KT-74478 K2: False negative RETURN TYPE_MISMATCH if the last statement of a lambda is indexed assignment
• KT-73685 K2 IDE / Kotlin Debugger: NSME “Method not found” on evaluating function with constant value in @JvmName
• KT-74449 Report RETURN_TYPE_MISMATCH instead of ARGUMENT_TYPE_MISMATCH for return expressions in lambdas
• KT-74918 FIR: account for K/Wasm diagnostics in generateNonSuppressibleErrorNamesFile
• KT-74897 K2: Report UNSUPPORTED_FEATURE instead of TOPLEVEL_TYPEALIASES_ONLY for nested type aliases
• KT-74963 K2: Fir2Ir: Avoid a situation when startOffset > endOffset in generated IrBranch
• KT-74697 Overriding a method that's both deprecated and non-deprecated should not cause warnings
• KT-74928 K2: "IllegalStateException: Cannot find cached type parameter by FIR symbol" in KJK hierarchy with extension property
• KT-74630 K2: local class arguments in annotations on types and type parameters are not serialized
• KT-74445 Commonize Native Function/Property reference lowerings
• KT-74670 Warning message CONTEXT_CLASS_OR_CONSTRUCTOR isn't reported for context receiver on the constructor
• KT-74617 Trivial SMAP optimization leads to missing debug info after inline
• KT-74812 compile-time failure on a callable reference with an input type inferred to an inaccessible generic type
• KT-66195 K2: Java method is not enhanced from overridden's context receivers
• KT-74501 Context parameters: ABSTRACT_MEMBER_NOT_IMPLEMENTED if fun with context is implemented in Java in KJK hierarchy
• KT-74385 Missing diagnostic on repeated suspend modifier in function type
• KT-74749 Provide explanation IR before script compilation
• KT-74751 K2: IllegalStateException: Can't apply receivers of FirPropertyAccessExpressionImpl to IrTypeOperatorCallImpl
• KT-74729 NPE when suspend lambda has inline class parameter
• KT-74336 Not supported: class org.jetbrains.kotlin.fir.types.ConeIntersectionType
• KT-74203 K2: False negative NO_ELSE_IN_WHEN of a generic type with star projection <*> bounded by a sealed hierarchy
• KT-48085 Kotlin/Native: LLD removes live code with --gc-sections when producing DLL
• KT-69164 Native: use lld from bundled LLVM distribution when compiling on Windows for a MinGW target
• KT-74081 Context parameters: implicit call resolves to extension when there is a context
• KT-74682 Implement internal type exposure via parameter bounds deprecation postponement
• KT-74556 K2: "IAE: class KtDestructuringDeclaration is not a subtype of class KtNamedDeclaration for factory REDECLARATION" with two non-local destructuring declarations
• KT-73146 Context parameters CLI & diagnostics
• KT-72104 Consider enabling check for unbound symbols in JVM before lowerings
• KT-74568 Synthetic nested classes missing JVM attributes
• KT-73703 [Native] Move KonanIrLinker to serialization.native module
• KT-61175 K2: FirReceiverParameter does not extend FirDeclaration
• KT-73961 'lateinit is unnecessary' on transient properties should not be reported for serializable classes
• KT-73858 Compose / iOS: NullPointerException on building
• KT-62953 JVM IR: Use SimpleNamedCompilerPhase instead of NamedCompilerPhase
• KT-72929 Consider caching typealiased constructor symbols created by TypeAliasConstructorsSubstitutingScope
• KT-74459 K2: false positive MISSING_DEPENDENCY_CLASS for types inside default argument
• KT-73705 [Native] Decouple native caches support from KonanIrLinker and KonanPartialModuleDeserializer
• KT-74091 K2: @JvmOverloads-produced overloads have generated line number table
• KT-69754 Drop -Xuse-k2 compiler flag
• KT-73352 K2: false negative ARRAY_EQUALITY_OPERATOR_CAN_BE_REPLACED_WITH_EQUALS
• KT-72962 Consider enabling ConsiderForkPointsWhenCheckingContradictions LF earlier
• KT-73027 IllegalStateException: Annotation argument value cannot be null: since
• KT-74242 Freeze on runCatching call in finally block inside SAM conversion
• KT-29222 FIR: consider folding binary expression chains
• KT-73760 Cannot implement two Java interfaces with @NotNull-annotated type argument and Kotlin's plain (nullable) type parameter
• KT-58933 Applying suggested signature from WRONG_NULLABILITY_FOR_JAVA_OVERRIDE leads to red code
• KT-70507 Should parentheses prevent from plus/set operator desugaring?
• KT-67520 Change of behaviour of inline function with safe cast on value type
• KT-67518 Value classes leak their carrier type implementation details via inlining
• KT-72305 K2: Report error when using synthetic properties in case of mapped collections
• KT-71226 K2 Evaluator: Code fragment compilation with unresolved classes does not fail with exception
• KT-70233 Implement a deprecation error for FIELD-targeted annotations on annotation properties
• KT-67517 Value class upcast to Any leaks carrier type interfaces
• KT-72814 FIR: don't use function references in FirThisReference
• KT-73153 K2: Standalone diagnostics on type arguments are not reported
• KT-73011 K2: Allow overloads resolution for callable references based on expected type variable with constraints
• KT-70139 Remove dependencies of debugger on K1 and old JVM backend
• KT-69223 Drop parallel lowering mode in JVM backend
• KT-7461 Forbid using projection modifiers inside top-level Array in annotation's value parameter
• KT-53804 Restore old and incorrect logic of generating InnerClasses attributes for kotlin-stdlib
• KT-52774 Resolve unqualified enum constants based on expected type

Compose compiler

New features

• 5f7e5d1 Enabled PausableComposition feature flag by default
• e49ba7a Enabled OptimizeNonSkippingGroups feature flag by default

Fixes

• b/420729503 Avoid copying @Deprecated annotations on Compose compiler stubs
• b/417412949 Emit fake line number for skipToGroupEnd branch
• b/412584977 Fix false positive for overriding open functions from older dependencies
• b/409238521 Fix crash when searching for ComposableLambda::invoke function on JS
• b/408752831 Fix early return with value from key groups
• b/388505454 Treat context parameters the same way as extension receiver
• b/408013789 Add missing return for the default function wrappers
• b/405541364 Realize coalescable children in the body of key call
• b/305035807 Add support for @Composable function references with K2
• b/401484249 Generate a group around Array constructor call
• b/400380396 Fix missing endMovableGroup call with early return in key function
• b/397855145 Fix "Unknown file" error in target annotation inference
• b/274898109 Fix off-by-one error when calculating changed arg count for lambdas
• b/377499888 Allow restarting overridden functions in a final class
• b/393400768 Use -1 for .changed call if nullable enum parameter is null
• b/390151896 Fix default arguments with varargs in @Composable functions
• b/388030459, b/377737816 Prevent usage of transitive captures in lambda memoization
• b/310004740 Check vararg parameter length in skipping logic
• b/367066334 Add diagnostic to restrict @Composable annotation to function types only
• b/388505454 Change order of $changed bits with context parameters
• CMP-7873 Native build fails with "e: Compilation failed: Exception during generating code for following declaration"

IDE

• KT-54804 Generate synthetic functions for annotations on properties in light classes

IR. Actualizer

• KT-70907 Actualize fake override symbols in Ir Actualizer

IR. Inlining

Fixes

• KT-76145 Enhance error message about poisoned KLIBs in KLIB-based compilers
• KT-70916 IR: Report errors on exposure of private types in non-private inline functions
• KT-73155 Move Mapping from LoweringContext back to CommonBackendContext
• KT-76186 [IR] Sanitize deserialized IR dump of anonymous classes
• KT-75788 IR inliner: Serialize preprocessed inline functions in a separate place inside KLIBs
• KT-71416 Perform IR-level visibility diagnostics for inline functions after the first phase of inlining
• KT-76224 [IR][Inliner] Dumb file is unsuported in IrSymbolBase.getDescriptor()
• KT-75793 IR inliner: Stop injecting the deserialized function body to LazyIR inline function
• KT-75791 IR inliner: NonLinkingIrInlineFunctionDeserializer should load inline functions from a separate location in a KLIB
• KT-73708 Use some marker in KLIBs produced with IR inliner
• KT-76024 [JS][IR Inliner] Partial linkage: No function found for symbol in kotlin package
• KT-75733 Reorganize execution of the common prefix at 1st phase of compilation
• KT-75986 Add an option to the DumpIrTreeOptions to dump IR signature if available
• KT-75951 [IR Inliner] Illegal non-local return reported by the partial linkage engine
• KT-75932 Fix a problem with already bound symbol with public IR inline enabled
• KT-64812 Investigate and fix remaining owner usages in inliner
• KT-74732 IR: Exposure of private type is reported at wrong source location
• KT-76007 IR deserialization tests w/ enabled IR inliner: undefined offsets in IrInlinedFunctionBlock.inlinedFunctionSymbol
• KT-74734 [Native] Use NativeInliningFacade in new subclass of AbstractFirNativeSerializationTest
• KT-73985 KLIB Synthetic Accessors Dump Format: Include local declarations
• KT-72594 [JS][Native] Add IrInliningFacade to test runners
• KT-74456 SerializedIrDumpHandler: Compare IR dumps with source offsets
• KT-73624 [Native] Implement inlining facade
• KT-70370 SyntheticAccessorLowering: Turn on mode with narrowing visibility on 1st phase of compilation
• KT-70452 OuterThisInInlineFunctionsSpecialAccessorLowering - run it after inlining of private functions
• KT-70451 Enable double-inlining in Native & JS backends unconditionally
• KT-69681 IR: Report warnings on exposure of private types in non-private inline functions

IR. Interpreter

• KT-74581 Support IrRich*Reference in IR interpreter

IR. Tree

Fixes

• KT-73189 Migrate compiler sources to new IR parameter API
• KT-77508 K/JS and K/Native CompilationException Wrong number of parameters in wrapper
• KT-74331 Implement IrElement.copyAttributes as a true attribute map copy
• KT-76600 Use a language feature to check error on cross-file IrGetField operations generated by compiler plugins
• KT-75628 IR validator: Forbid IrExpressionBody for IrFunction
• KT-75679 Extract common invokeFunction in IrRichCallableReference
• KT-74799 [Native][IR] Excessive FUNCTION_INTERFACE_CLASS after deserialization
• KT-71138 Report error on cross-file IrGetField operations generated by compiler plugins
• KT-75196 [IR] Make startOffset and endOffset mutable
• KT-73206 Extract common parts from new IrRichFunctionReference/IrRichPropertyReference nodes
• KT-73190 Migrate common backend sources to new IR parameter API
• KT-73225 Migrate compiler.ir.serialization.common to new IR parameter API
• KT-73220 Migrate compiler.ir.tree to new IR parameter API
• KT-75189 Add an IR validation for the correspondingPropertySymbol
• KT-74275 Adjust IR dump format for context parameters & new parameter API
• KT-74269 Drop IrElementVisitor, IrElementVisitorVoid and IrElementTransformer interfaces
• KT-72739 Create a lowering to replace old callable reference nodes with new ones
• KT-73120 Get rid of Ir class
• KT-73045 Fix inconsistency between shapes of IR calls vs callee
• KT-69714 [IR] Remove IrErrorDeclaration
• KT-73609 Tests: Implement DeserializerFacade for Kotlin/Native
• KT-73813 Implement tests for all IR validator checkers
• KT-73171 Choose the approach for testing IR serialization/deserialization wrt IR inliner
• KT-73430 [IR] Get rid of SymbolFinder usages outside of Symbols hierarchy
• KT-74455 IR dump: Support dumping source offsets
• KT-73433 [IR] Get rid of some symbols lookup methods

JVM. Reflection

• KT-75505 Reflection: use kotlin-metadata-jvm to implement class visibility, modality, modifiers, etc
• KT-77663 Reflection: java.util.ServiceConfigurationError: "module kotlin.reflect does not declare uses" when using kotlin-reflect in modular mode
• KT-75464 Bundle kotlin-metadata-jvm into kotlin-reflect
• KT-71832 kotlin.jvm.internal.ClassReference static overhead is 11,060 bytes

JavaScript

New Features

• KT-31493 [Kotlin/JS] Can't put typealias in file marked with JsModule annotation

Performance Improvements

• KT-74533 K/JS: avoid number to char calls in charSequenceGet intrinsic

Fixes

• KT-77021 CompilationException: Encountered a local class not previously collected on inner classes inside anonymous objects
• KT-78073 K/JS: KProperty from local delegate changes after another delegate is invoked
• KT-77271 KJS / Serialization: "Cannot set property message of Error which has only a getter"
• KT-76235 [JS] Extra invalid line tmp_0.tmp00__1 = Options; in testSuspendFunction()
• KT-76234 [JS] Extra invalid line Parent in testNested()
• KT-76233 [JS] Extra invalid import line in testJsQualifier()
• KT-74839 AssociatedObjectKey metadata doesn't survive incremental compilation
• KT-77418 KJS: cannot debug with whole-program granularity
• KT-76463 KJS: @JsPlainObject fails in parent count is 8+
• KT-75606 KJS: java.lang.AssertionError: Different declarations with the same signatures were detected
• KT-69591 KJS / d.ts: Wrong type of SerializerFactory for abstract classes
• KT-72437 KJS. Invalid copy method for inherited JSO with type parameters
• KT-57192 KJS: "Exported declaration uses non-exportable return type" caused by @JsExport Promise with Unit type
• KT-73226 Migrate K/JS to new IR parameter API
• KT-75254 KJS: Merge AbstractSuspendFunctionsLowering from Common and JS backends
• KT-76440 @JsPlainObject compiles broken code when inlining suspend function and non suspend function
• KT-71169 @JsPlainObject copy produces the wrong type when copied property is nullable in parent interface
• KT-75772 KJS: NullPointerException caused by reference of private class with @JsExport
• KT-73363 Migrate js-plain-objects plugin to new IR parameter API
• KT-64927 [JS] TypeError when abstract class with override var property extends an exported abstract class with val property
• KT-70623 Kotlin/JS: Incremental compilation fails when granularity is changed
• KT-74384 Support new callable reference nodes in JS backend
• KT-70652 Kotlin/JS: @JsExport doesn't work with granularity per-file
• KT-71365 KJS. File-level export support
• KT-68775 Kotlin/JS infinite loop for exception message override that calls super.message
• KT-42271 K/JS: isInitialized for not-lateinit property isn't marked as error as in JVM project
• KT-70664 Extending a @JsPlainObject interface with a generic type parameter fails with a compile error
• KT-71656 K2 JS: "IllegalStateException: Class has no primary constructor: kotlin.ULong"
• KT-42305 KJS / IR: "Class constructor is marked as private" @JsExport produces wrong TS code for sealed classes
• KT-52563 KJS / IR: Invalid TypeScript generated for class extending base class with private constructor

Klibs

New Features

• KT-72296 Use specialized signatures for serialized local fake overrides

Fixes

• KT-78168 K/N: "IndexOutOfBoundsException: Index 3 out of bounds for length 3" for iOS build with Kotlin 2.2.0-RC2
• KT-74635 KLIBs: Change call serialization scheme to store all arguments in a single list
• KT-76061 Add option for suppress warning of missing no-existent transitive klib dependencies
• KT-70146 [KLIB Resolve] Don't fail on nonexistent transitive dependency
• KT-75624 Don't fail on an attempt to deserialize "unknown" IrStatementOrigin and IrDeclarationOrigin
• KT-55808 Support metadata version checks for klibs in the compiler
• KT-56062 Support -Xmetadata-version for KLIB-based compilers
• KT-76158 Drop "description" from local signatures
• KT-75749 KLIB: Fail with error on attempt to serialize/deserialize SpecialFakeOverrideSignature
• KT-75941 [IR Inliner] Abstract function is not implemented in non-abstract anonymous object
• KT-75867 The CLI argument -Xabi-version allows versions with multiple 0 and -0
• KT-75192 KLIB reader tends to extract files from the KLIB archive to a temporary directory even when this is not needed
• KT-75013 Make klib reader more flexible: allow empty directories to be omitted
• KT-75680 KLIB: Drop obsolete IrPerFileLibraryImpl & IrPerFileWriterImpl
• KT-73779 [Native] Context parameters: extension receiver is preferred over context parameters
• KT-65375 Clean-up the logic for serialization of error types in metadata and in IR
• KT-73826 Deduplicate IrFileEntry that is serialized inside IrInlinedFunctionBlock
• KT-75091 Drop targets/$target_name/kotlin directory from klibs
• KT-74352 API4ABI: Fix representation of context parameters
• KT-71007 Align KLIB ABI version with the language version
• KT-73672 Bump KLIB ABI version in 2.2.0
• KT-74080 API4ABI: Adapt API for value parameter kinds
• KT-74396 Support context parameters in klibs
• KT-72931 Support new callable reference nodes in KLIB [de]serializer

Language Design

New Features

• KT-2425 Multidollar interpolation: improve handling of $ in string literals
• KT-1436 Support non-local break and continue
• KT-13626 Guard conditions in when-with-subject
• KT-54206 Support local contextual functions

Fixes

• KT-53673 Support @DslMarker annotations on contextual receivers
• KT-73557 Allow refining expect declarations for platform groups
• KT-72417 Annotation with target RECORD_COMPONENT cannot be used on @JvmRecord data class components
• KT-67977 Compile results of annotations assigned to JvmRecord properties as in Java
• KT-73502 Context parameters: it is not possible to declare local function with a context
• KT-73632 Expect class redeclaration is allowed
• KT-70002 [LC] Forbid using projection modifiers inside top-level Array in annotation's value parameter

Libraries

New Features

• KT-76163 K/N: Hide or remove CreateNSStringFromKString/CreateKStringFromNSString
• KT-70456 Base64: Support lineLength parameter for Mime
• KT-76394 kotlin.time.TimeSource.asClock missing
• KT-31857 Provide easy way to retrieve annotations for kotlinx-metadata
• KT-76528 Instant.parseOrNull
• KT-74804 Add @MustUseValue and @IgnorableValue / @Discardable to kotlin-stdlib
• KT-74422 KotlinWebsiteSampleRewriter should filter individual imports from samples package

Performance Improvements

• KT-68860 K/JS: optimize listOf(element)
• KT-75647 Optimized sequenceOf(T) overload is missing

Fixes

• KT-72138 Stabilize experimental API for 2.2
• KT-76831 Atomic types: inconsistent behavior on JS and Wasm targets
• KT-76795 RecursiveDeletionTest.deleteRelativeSymbolicLink fails on Windows for unprivileged users
• KT-75290 kotlin-metadata: deprecate hasAnnotations flag, add JVM-only hasAnnotationsInBytecode instead
• KT-76193 Common Atomics: 'AtomicArray.compareAndSetAt' and 'compareAndExchangeAt' docs incorrectly suggest they use == when actually they use ===
• KT-54077 Consider using SecureDirectoryStream in deleteRecursively even when Path.parent is null
• KT-72866 Standard library functions to work with context parameters
• KT-76743 Add kotlin-scripting-jvm to projectsUsedInIntelliJKotlinPlugin list
• KT-72483 Clean up redundant stdlib code for Kotlin 2.2
• KT-76385 Remove suppression from functions to work with context parameters
• KT-75337 Remove suppress annotations from @IgnorableReturnValue
• KT-72137 Review deprecations in stdlib for 2.2
• KT-75491 Non intuitive work of 'in' (contains) with String range
• KT-75933 Update readLine's KDoc to suggest alternative functions
• KT-46360 Type inference fails to infer type for sumOf call with integer literal: "Overload resolution ambiguity TypeVariable(T)) -> Int / Long"
• KT-73590 Samplify string.split
• KT-75759 Add the serializer for kotlin.time.Instant to the list of standard serializers
• KT-71628 Review deprecations in stdlib for 2.1
• KT-73726 A link from shuffle's KDoc is not rendered properly
• KT-74173 The sample code of lazy on stdlib can not run on playground due to "samples" package import
• KT-50081 AbstractList sublist leads to StackOverflow

Native

• KT-76992 Native: update llvm for windows targets
• KT-56107 Support Enum.entries for C/ObjC interop enums
• KT-76552 LLVM Update: rebase the LLVM branch
• KT-76662 LLVM 19 update: documentation
• KT-76560 LLVM Update: investigate changes in filterStdargH test
• KT-76283 LLVM Update: pass all tests
• KT-74377 Kotlin Native: release executable crashes with error 139
• KT-75829 LLVM Update: port K/N on LLVM 19
• KT-76280 LLVM Update: benchmarksAnalyzer build failed
• KT-70202 Xcode 16 Linker fails with SIGBUS

Native. Build Infrastructure

• KT-77349 Kotlin/Native: default cache for stdlib is unused

Native. C and ObjC Import

• KT-75598 Native: fix samples/objc test
• KT-76551 LLVM Update: investigate CXFile equality problem further
• KT-75781 Xcode 16.3: Fix cinterop tests failing with fatal error: could not build module '_stdint'
• KT-74549 Native: replace clang_Type_getNumProtocols/clang_Type_getProtocol with standard libclang functions

Native. Platforms

• KT-74702 Deprecate Windows 7 support

Native. Runtime

• KT-71534 Native: Support Latin-1 encoded strings at runtime
• KT-67741 Kotlin/Native: Unify SpecialRef handling

Native. Runtime. Memory

• KT-74831 Kotlin/Native: investigate mmap usage in custom allocator
• KT-74432 Native: add an option to allocate everything in SingleObjectPage
• KT-74975 Enable CMS by default in Swift export
• KT-60928 Kotlin/Native: refactor allocator code
• KT-50291 Kotlin/Native: remove dependency of mm on gc implementation

Native. Swift Export

• KT-75166 Support export of platform libraries types in Swift export
• KT-75079 Swift export: add dependency from sir-compiler-bridge to Analysis API
• KT-72413 Swift Export: potential memory leak when best-fitting class is different from the formal type
• KT-72107 Remove IntoSingleModule stratagy

Tools. Ant

• KT-73116 Deprecate Ant support

Tools. BCV

• KT-75686 Improve DSL for BCV in KGP
• KT-76129 Abi validation filtering functionality for included classes doesn't work
• KT-75999 ABI validation filter doesn't apply excluded kotlin files
• KT-75981 ABI validation filter not applying excluded classes without package names
• KT-71168 Implement a prototype of ABI Validation in Kotlin Gradle Plugin

Tools. Build Tools API

• KT-76455 BTA: Compilation is always non-incremental if BTA API >= 2.2.0 is used together with BTA impl < 2.2.0
• KT-76060 BTA: Java sources passed for IC may fail compilation in non-incremental mode
• KT-74041 Build Tools API: Lower level or remove compiler arguments log

Tools. CLI

New Features

• KT-73606 Provide a unified interface for managing the reporting of compiler warnings
• KT-24746 Provide ability to exclude specific warnings from compiler option Werror (all warnings as errors)
• KT-18783 Option to treat a specific compiler warning as an error
• KT-76095 Add JVM target bytecode version 24
• KT-73007 Add stable compiler argument -jvm-default instead of -Xjvm-default

Performance Improvements

• KT-75641 kotlinc -help spends almost 1 second on Usage.render()

Fixes

• KT-77445 UNRESOLVED_REFERENCE when importing classes from kotlin-stdlib
• KT-75300 Lenient compiler mode which generates stubs for missing actuals
• KT-76829 UnsupportedOperationException when reenabling a taking place warning with -Xwarning-level
• KT-75588 [2.1.20-RC] "was compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" warnings despite using the same compiler version
• KT-74663 kotlinc-js CLI: not providing -ir-output-dir results in NullPointerException
• KT-75967 Implement generation of CLI arguments in compiler using new single representation
• KT-75966 Declare all existing CLI arguments using the new DSL
• KT-76498 Implement JSON dumper for performance stats
• KT-75970 Extract all non-trivial logic from CommonCompilerArguments and its inheritors
• KT-73595 Kapt.use.k2=true is ignored silently for language-version 1.9 or less
• KT-75043 Migrate Metadata compilation pipeline to the phased structure
• KT-75113 TEST_ONLY LanguageFeature doesn't abort the compilation

Tools. CLI. Native

• KT-69485 Native: remove adding $llvmDir\bin to PATH on Windows

Tools. Commonizer

• KT-74623 Drop metadata version check from KLIB commonizer

Tools. Compiler Plugin API

• KT-74640 [FIR] Support setting source in declaration generators

Tools. Compiler Plugins

Fixes

• KT-76162 "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" after updating to 2.1.20
• KT-61584 [atomicfu]: prohibit declaration of AtomicReference to the value class in the compiler plugin
• KT-70982 Deprecate declaration of atomic properties marked with @PublishedApi with error
• KT-73367 Migrate compose plugin to new IR parameter API
• KT-76429 Migrate kotlin-dataframe plugin to new IR parameter API
• KT-75263 PowerAssert: no additional info is displayed for 'when' with subject
• KT-75614 PowerAssert: handling of exceptions doesn't work inside assert function
• KT-75264 PowerAssert: the diagram for try-catch with boolean expressions isn't clear
• KT-75663 PowerAssert: 'contains' result for strings is displayed under the first parameter instead of 'in'
• KT-73897 PowerAssert: Implicit argument detection is brittle in a number of cases
• KT-74315 Kotlin Lombok: "Unresolved reference" on generating @Builder for static inner class where outer class is also using @Builder
• KT-72172 File Leak occurring in Kotlin Daemon
• KT-75159 Compose: Missing 'FunctionKeyMeta' annotation on lamdas declared in non-composable function
• KT-72877 Power-Assert should provide IrExpression transformation API
• KT-73871 PowerAssert: Comparison via operator overload results in confusing diagram
• KT-73898 PowerAssert: Operator calls with multiple receivers incorrectly aligned
• KT-73870 PowerAssert: Object should not be displayed

Tools. Compiler plugins. Serialization

• KT-49632 Provide diagnostic when custom serializer for generic type does not have required constructor signature ( ISE Null argument in ExpressionCodegen for parameter VALUE_PARAMETER)

Tools. Gradle

New Features

• KT-75823 Resources bundle with XCFrameworks for iOS
• KT-73418 Gradle '--warning-mode' value should affect Gradle plugin diagnostics
• KT-73906 Improve ToolingDiagnostic CLI rendering
• KT-73285 Integrate Gradle Problem API with KGP diagnostics
• KT-61649 Add Gradle compiler option for jvm-default
• KT-68659 Collect reported Kotlin Gradle Plugin diagnostics into one HTML/Text file report instead of writing it to log

Fixes

• KT-75188 Groovy plugin breaks access to internal members of test friendPaths classes in kotlin compilation
• KT-54110 Change deprecation level to ERROR for kotlinOptions DSL
• KT-74277 KGP / FreeBSD: "TargetSupportException: Unknown operating system: FreeBSD" during the build
• KT-75820 Gradle: "ClassNotFoundException: intellij.util.containers.Stack" while parsing compilation warnings with IN_PROCESS execution strategy
• KT-64991 Change deprecation level to error for KotlinCompilation.source
• KT-75107 Add Gradle property to use new FIR IC runner
• KT-66133 Finalize resolution strategy for resources and remove the one that is unused
• KT-59632 KotlinCompileTool.setSource() should replace existing sources
• KT-62963 Remove "kotlin.incremental.useClasspathSnapshot" property
• KT-76137 Compatibility with Gradle 8.14 release
• KT-76797 KGP: StdlibDependencyManagementKt.configureStdlibVersionAlignment() triggering eager configuration realization
• KT-76282 Add missing Android Gradle plugin versions in tests
• KT-77011 Update build regression benchmarks for 2.2.0 release
• KT-76138 Compile against Gradle API 8.14
• KT-76139 Run integration tests against Gradle 8.14
• KT-74007 Not all the DSL features related to kotlinOptions are deprecated
• KT-77288 Using 'KotlinJvmOptions' is an error - Gradle sync issue when using 2.2.0-Beta2 with Android Gradle Plugin
• KT-74887 Compatibility with Gradle 8.13 release
• KT-73682 Compatibility with Gradle 8.12 release
• KT-77035 A compiler diagnostic isn't reported when its severity is set to warning with Gradle
• KT-70620 Raise to error deprecation for KotlinCompilationOutput#resourcesDirProvider
• KT-68597 Update KGP deprecations before 2.2
• KT-68325 Add to Compiler Types DSL exceptions message possible ways of a solution
• KT-76951 'distribution-base' plugin is only applied in Gradle 8.13
• KT-73142 Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder
• KT-73968 KotlinDependencyManagement tries to mutate configuration after it was resolved
• KT-74890 Run Gradle integrations test against Gradle 8.13 release
• KT-74889 Compile against Gradle 8.13 API
• KT-76052 Support Gradle 8.13 for Problems API
• KT-73684 Run integration tests against Gradle 8.12
• KT-76377 Add integration tests for Problems API
• KT-74551 Improve KGP-IT withDebug for tests with environment variables
• KT-74717 Test publication with dependency constraints
• KT-75164 Run Gradle incremental compilation tests with FIR runner
• KT-72694 Accessing Task.project during execution is being deprecated in Gradle 8.12
• KT-76374 Investigate and fix failing tests with configuration cache in KotlinDaemonIT: testDaemonMultiproject and testMultipleCompilations
• KT-76379 Gradle: KotlinGradleFinishBuildHandler does not perform cleanup on configuration cache reuse
• KT-61911 Gradle: make KGP to depend on fixated version of stdlib
• KT-76026 [ToolingDiagnostic] Gradle warning mode=fail: no emoji replacement, title color unchanged
• KT-76025 ToolingDiagnostic with FATAL Severity: ANSI escape codes are not rendered properly in the Build tool window in IntelliJ IDEA
• KT-70252 Gradle: remove Intellij dependencies from KGP runtime
• KT-74333 improve ToolingDiagnosticBuilder
• KT-73683 Compile against Gradle API 8.12
• KT-75187 Make KotlinToolingDiagnostics internal
• KT-75568 Do not use env variables registered as CC inputs
• KT-73842 Gradle: AGP failing tests with "Failed to calculate the value of property 'generalConfigurationMetrics'" using KGP
• KT-75262 Gradle test-fixtures plugin apply order breaks the project
• KT-75277 FUS statistics: 'java.lang.IllegalStateException: The value for this property cannot be changed any further' exception is thrown during project import
• KT-75026 Corrupted NonSynchronizedMetricsContainer in parallel Gradle build
• KT-73849 Categorize ToolingDiagnostics
• KT-74462 Flaky Kotlin Gradle Plugin Tests: IsInIdeaEnvironmentValueSource$Inject not found
• KT-72329 Consider bumping apiVersion for projects with compatibility setup
• KT-74772 ToolingDiagnostic: title is not displayed on Windows
• KT-74485 BuildFinishedListenerService is not thread-safe
• KT-74639 Executable binaries for JVM test cannot be created unless an additional suffix is set in Groovy
• KT-72187 Gradle tests are using incorrect Kotlin/Native distribution
• KT-57653 Explicit API mode is not enabled when free compiler arguments are specified in Gradle project
• KT-51378 Gradle 'buildSrc' compilation fails when newer version of Kotlin plugin is added to the build script classpath

Tools. Gradle. Compiler plugins

• KT-58009 BaseKapt.annotationProcessorOptionProviders should be a List<CommandLineArgumentProvider> instead of List<Any>
• KT-61928 Clarify parameter types in KaptArguments and KaptJavacOption

Tools. Gradle. JS

• KT-74859 Gradle configuration cache issues related to RootPackageJsonTask
• KT-70357 Remove JS/Dce deprecated Gradle DSL
• KT-71217 KJS: 'Per-file' "Module not found: Error: Can't resolve void.mjs"
• KT-77119 KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works
• KT-74735 KGP uses Gradle internal CompositeProjectComponentArtifactMetadata
• KT-71879 Notice of upcoming deprecation for Boolean 'is-' properties in Gradle Groovy scripts
• KT-75863 Wasm/JS: Deprecate phantom-js for Karma
• KT-75485 KJS: "Module not found: Error: Can't resolve 'style-loader' and 'css-loader'" in 2.1.20-RC
• KT-74869 KJS: jsBrowserProductionWebpack does not minify output with 2.1.20-Beta2

Tools. Gradle. Multiplatform

New Features

• KT-60623 Deprecate publishAllLibraryVariants in kotlin-android

Fixes

• KT-75161 Deprecate commonization parameters in KGP with an error
• KT-74005 Implement a prototype of Unified Klib support in Kotlin Gradle Plugin
• KT-61817 Remove support for Legacy Metadata Compilation with support of Compatibility Metadata Variant
• KT-71634 KGP: Remove KotlinTarget.useDisambiguationClassifierAsSourceSetNamePrefix and overrideDisambiguationClassifierOnIdeImport
• KT-77404 The kotlin-stdlib and annotations are missing from commonTest dependencies with 2.2.0-Beta1
• KT-62643 Increase DeprecationLevel to 'Error' on deprecated 'ExtrasProperty.kt' (Kotlin 2.2)
• KT-75605 Dependency resolution fails in commonTest/nativeTest source sets for KMP module when depending on another project due to missing PSM
• KT-71698 Remove preset APIs
• KT-68015 Remove legacy KMP flags
• KT-74727 Dependency resolve from a single target KMP module to another kmp module fails on non-found PSM
• KT-75808 KGP: MPP with jvm target and Gradle java-test-fixtures is broken
• KT-59315 Improve the readability of KGP diagnostics in CLI build output
• KT-58231 Kotlin Gradle Plugin: set deprecation level to Error for KotlinTarget.useDisambiguationClassifierAsSourceSetNamePrefix and overrideDisambiguationClassifierOnIdeImport
• KT-66423 Configuration cache false recalculation because of Kotlin Native downloading during the execution phase
• KT-74888 Use 'distribution-base' plugin in KMP/JVM
• KT-76659 Write proper diagnostics for Uklib checks
• KT-70493 Improve gray-box testing experience in KGP-IT
• KT-71608 Remove 'android()' target
• KT-75512 Maven-publish: ArtifactId is not correct inpom file with customized withXml
• KT-72203 Swift Export: Unclear failure for invalid module name
• KT-74278 KSP tasks don't trigger a K/N distribution downloading
• KT-74669 Executable binaries for JVM: a jar generated by jvmJar task isn't added to the build/install/testAppName/lib directory
• KT-69200 Module 'intellij.kotlin.gradle.multiplatformTests' transitively depends on K1/K2 implementation
• KT-71454 Remove not compatible with Project Isolation PomDependenciesRewriter
• KT-73536 Enable kmp isolated projects support for kotlin-test and patch PSM.json

Tools. Gradle. Native

• KT-77067 Kotlin Gradle plugin with the configuration cache passes all platform libraries to the compiler when compiling a binary for the first time
• KT-74953 Deprecate kotlinArtifacts with a warning
• KT-71069 Remove konanVersion from CInteropProcess
• KT-75171 Provide custom freeCompilerArgs to Swift Export's link task
• KT-74591 HostManager.isMingw isLinux and isMac are not accessible in groovy scripts
• KT-65692 Remove Kotlin Native Performance plugin
• KT-74403 :commonizeNativeDistribution fails when configured native targets cannot be built on machine

Tools. Gradle. Xcode

• KT-66262 Deprecate and remove support for bitcode embedding from the Kotlin Gradle plugin

Tools. Incremental Compile

• KT-62555 Wrong ABI fingerprint for inline function containing a lambda
• KT-75883 Follow-up: switch from INSTANCE heuristic to outerClass chain
• KT-75276 Test IC issues with first-round failures that might be fixed by Fir runner
• KT-76041 Make lenient mode work with IC
• KT-75155 Split HistoryFileJvmIncrementalCompilerRunner and the current one
• KT-74628 Incremental compilation runner does not check compiler exit code before mapping sources to classes

Tools. JPS

• KT-60914 IC misses dependency to recompile when named kt file with JvmField instructed property was replaced with an object with the same name
• KT-76495 JPS: delegated Maven builds use embeddable version of kotlin-serialization compiler plugin with non-embeddable Kotlin compiler
• KT-76461 Fix "compilation of typealias does not check for clashes" for JPS
• KT-75917 Unused imports may lead to inc compilation failure
• KT-73379 Review the usage of JavaBuilder.IS_ENABLED inside the KotlinBuilder JSP builder
• KT-63707 JPS: "Multiple values are not allowed for" caused by Compose

Tools. Kapt

• KT-75936 K2 KAPT: unsupported FIR element kinds in constant evaluation
• KT-64385 K2: Enable K2 KAPT by default
• KT-76546 Kapt / CLI: ""compile" mode is not supported in Kotlin 2.x" with -version flag
• KT-75942 K2 KAPT: underscore not allowed here
• KT-40485 -Xjvm-default=all causes private interface methods to be generated in JVM target < 9 which is not supported in annotation processing
• KT-75202 K2 kapt: mapped type class literal is converted incorrectly
• KT-70797 Remove obsolete K2 kapt implementation based on Analysis API

Tools. Maven

• KT-73012 Migrate Kotlin Maven plugin to the Build Tools API
• KT-77036 Kotlin Maven plugin: ClassNotFoundException com.google.common.base.Joiner with compiler plugins in debug mode
• KT-61285 Remove multiplatform "support" from Maven Plugin

Tools. Performance benchmarks

• KT-75563 Fix crash on kotlin compiler server user project related to performance measurements

Tools. REPL

Fixes

• KT-75632 Contunue deprecation of the REPL built into kotlinc
• KT-76507 [K2 Repl] Delegated properties are not visible in the next snippet
• KT-76508 [K2 Repl] Annotations on property accessors are not resolved
• KT-75672 [K2 Repl] Serialization plugin crashes compiler backend
• KT-76009 [K2 Repl] Kotlin-specific imports does not work if dependency is added to the classpath after 1st snippet
• KT-75580 [K2 Repl] Cannot access snippet properties using Kotlin reflection
• KT-75616 [K2 Repl] Sealed hierarchies causes a FileAnalysisException
• KT-75593 [K2 Repl] Custom Delegates crash code gen
• KT-75607 [K2 Repl] ScriptingConfiguration.jvm.jvmTarget is not respected
• KT-74607 [K2 Repl] Lambda statement crashes code generation
• KT-74615 [K2 REPL] Anonymous objects crash code generation
• KT-74856 [K2 Repl] Snippet class files are missing Kotlin metadata
• KT-74768 [K2 Repl] refineConfiguration does not update the classpath correctly
• KT-74593 [K2 Repl] defaultImports does not work in ScriptCompilationConfiguration

Tools. Scripts

• KT-75589 Scripts: "IndexOutOfBoundsException in jdk.internal.util.Preconditions.outOfBounds" when trying to extend a class which uses global variable
• KT-76424 Dependencies in main.kts not working with 2.1.20
• KT-76296 Kotlin script compiler crashes when secondary constructor calls a function
• KT-76430 Migrate scripting plugin to new IR parameter API
• KT-74004 "Evaluate expression" fails in scripts

Tools. Wasm

• KT-76161 Wasm: "export startUnitTests was not found" after updating to Kotlin 2.1.20
• KT-73398 K/Wasm: Separate from JS NPM infrastructure
• KT-76948 Wasm: Rename kotlinBinaryenSetup and kotlinD8Setup
• KT-74840 Wasm: Binaryen setup per project
• KT-76657 K/Wasm: Composite build does not work with wasm tasks
• KT-76656 K/Wasm: Change NPM project name of wasm projects
• KT-76587 Wasm lock check failure says to run the JS lock upgrade
• KT-76330 K/Wasm: update binaryen to 123 or newer
• KT-74480 Projects using Compose don't run in Android Studio started from 2.1.20- Kotlin version

v2.1.21: Kotlin 2.1.21

Changelog

Backend. Native. Debug

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function

Compiler

• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated
• KT-76663 KJS: KotlinNothingValueException caused by expression return since 2.1.20
• KT-75756 Backend Internal error: Exception during IR lowering when trying to access variable from providedProperties in class within kotlin custom script
• KT-76209 CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-70352 K2: False-negative CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-74739 Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION_REFERENCE"
• KT-75483 Native: redundant unboxing generated with smart cast
• KT-71425 IR Inliner: investigate return type of an inlined block

Native

• KT-76252 Native: executable crash with generic value classes with 2.1.20

Native. C and ObjC Import

• KT-75781 Xcode 16.3: Fix cinterop tests failing with fatal error: could not build module '_stdint'

Native. Runtime. Memory

• KT-74280 Native: GC.collect crashes with -Xallocator=std

Tools. CLI

• KT-75588 [2.1.20-RC] "was compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" warnings despite using the same compiler version
• KT-74663 kotlinc-js CLI: not providing -ir-output-dir results in NullPointerException

Tools. Compiler Plugins

• KT-76162 "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" after updating to 2.1.20

Tools. Gradle

• KT-73682 Compatibility with Gradle 8.12 release
• KT-73142 Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder
• KT-36004 Update 'org.gradle.usage' attribute rules to support the 'JAVA_API' and 'JAVA_RUNTIME' value
• KT-73968 KotlinDependencyManagement tries to mutate configuration after it was resolved
• KT-73684 Run integration tests against Gradle 8.12
• KT-72694 Accessing Task.project during execution is being deprecated in Gradle 8.12
• KT-73683 Compile against Gradle API 8.12

Tools. Gradle. JS

• KT-77119 KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works
• KT-74735 KGP uses Gradle internal CompositeProjectComponentArtifactMetadata
• KT-71879 Notice of upcoming deprecation for Boolean 'is-' properties in Gradle Groovy scripts

Tools. Gradle. Multiplatform

• KT-75808 KGP: MPP with jvm target and Gradle java-test-fixtures is broken
• KT-75605 Dependency resolution fails in commonTest/nativeTest source sets for KMP module when depending on another project due to missing PSM
• KT-75512 Maven-publish: ArtifactId is not correct inpom file with customized withXml

Tools. Incremental Compile

• KT-62555 Wrong ABI fingerprint for inline function containing a lambda
• KT-75883 Follow-up: switch from INSTANCE heuristic to outerClass chain

Tools. Kapt

• KT-75936 K2 KAPT: unsupported FIR element kinds in constant evaluation
• KT-75942 K2 KAPT: underscore not allowed here

Tools. Scripts

• KT-76424 Dependencies in main.kts not working with 2.1.20
• KT-76296 Kotlin script compiler crashes when secondary constructor calls a function
• KT-75589 Scripts: "IndexOutOfBoundsException in jdk.internal.util.Preconditions.outOfBounds" when trying to extend a class which uses global variable

Tools. Wasm

• KT-76161 Wasm: "export startUnitTests was not found" after updating to Kotlin 2.1.20

v2.1.20: Kotlin 2.1.20

Changelog

Analysis API

Fixes

• KT-68198 Analysis API: Support application service registration in plugin XMLs
• KT-57733 Analysis API: Use optimized ModuleWithDependenciesScopes in combined symbol providers
• KT-73156 AA: type retrieval for erroneous typealias crashes
• KT-71907 K2 debugger evaluator failed when cannot resolve unrelated annotation
• KT-69128 K2 IDE: "Unresolved reference in KDoc" reports existing Java class in reference to its own nested class
• KT-71613 KaFirPsiJavaTypeParameterSymbol cannot be cast to KaFirTypeParameterSymbol
• KT-71741 K2 IDE. Classifier was found in KtFile but was not found in FirFile in libraries/tools/kotlin-gradle-plugin-integration-tests/build.gradle.kts in kotlin.git and broken analysis
• KT-71942 Need to rethrow Intellij Platform exceptions, like ProcessCanceledException
• KT-70949 Analysis API: "containingDeclaration" does not work on nested Java classes in K2 implementation
• KT-69736 K2 IDE: False positive resolution from KDoc for value
• KT-69047 Analysis API: Unresolved KDoc reference to extensions with the same name
• KT-70815 Analysis API: Implement stop-the-world session invalidation
• KT-69630 KAPT User project builds with KAPT4 enabled fail with Metaspace overflow

Analysis API. Code Compilation

• KT-71263 K2 evaluator: Error in evaluating self property with extension receiver

Analysis API. FIR

Performance Improvements

• KT-72025 FileStructureElement: reduce redundant resolve
• KT-74012 Redundant FirAbstractBodyResolveTransformerDispatcher.<init> CPU consumption
• KT-73900 ContextCollectorVisitor#computeContext may spend significant time on createSnapshot
• KT-73665 FirElementFinder is inefficient in large files
• KT-73330 Remove bodies from functions without contracts after the CONTRACTS phase
• KT-73017 Analysis API: FirReferenceResolveHelper.getSymbolsByResolvedImport searches for classes even when the selected FqName is a known package

Fixes

• KT-72308 getOrBuildFir returns null for this expression for plusAssign operator
• KT-72660 ISE: Recursive update at org.jetbrains.kotlin.analysis.low.level.api.fir.caches.FirCaffeineCache.getValue
• KT-74097 ISE: Recursive update at org.jetbrains.kotlin.analysis.low.level.api.fir.caches.FirCaffeineCache.getValue
• KT-74098 ISE: Recursive update at org.jetbrains.kotlin.analysis.low.level.api.fir.caches.FirCaffeineCache.getValue
• KT-72148 K2: KISEWA: Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirValueParameterImpl(DataClassMember) but FirArgumentListImpl found
• KT-73079 K2: Internal compiler error when conflicting type aliases are present
• KT-73456 Expected FirResolvedContractDescription but FirRawContractDescriptionImpl found for FirSimpleFunctionImpl
• KT-73259 Expected FirResolvedContractDescription but FirLegacyRawContractDescriptionImpl found for FirSimpleFunctionImpl
• KT-72740 FirDanglingModifierList: lazyResolveToPhase(STATUS) cannot be called from a transformer with a phase STATUS
• KT-66132 K2: FirRegularClass expected, but FirFileImpl found | Containing declaration is not found
• KT-72196 K2. KMP. IllegalStateException: expect-actual matching is only possible for code with sources
• KT-72652 FirProvider#getContainingClass should support FirDanglingModifierSymbol
• KT-73105 Lazy resolve contract violation (BODY_RESOLVE from BODY_RESOLVE)
• KT-66261 K2: Analysis API: "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtProperty, fir is null" with MULTIPLE_LABELS_ARE_FORBIDDEN K2 error
• KT-72315 K2. KIWA on usage of always-true OR in guard condition
• KT-65707 K2 IDE: unresolved calls of callables imported with typealias as qualifier
• KT-61516 K2: Provide an LL FIR implementation for getContainingClassSymbol (in FirHelpers)
• KT-72853 Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirContextReceiverImpl(Source) but FirArgumentListImpl found
• KT-64215 K2: do not resolve type annotations of receiver if it is used as an implicit return type
• KT-64248 K2: do not resolve type annotations of context receiver if it is used as an implicit return type
• KT-72821 Add assertion to diagnostic tests to check that all declarations have BODY_RESOLVE phase at the end
• KT-64056 K2: K2: FirLazyBodiesCalculator shouldn't calculate annotation arguments on type phase
• KT-71651 K2 IDE: False positive NON_LOCAL_SUSPENSION_POINT in suspend function call
• KT-72164 K2. IllegalArgumentException when pre and post increment are used simultaneously in assignment
• KT-71174 Illegal scope used
• KT-72407 FirImplementationByDelegationWithDifferentGenericSignatureChecker: FirLazyExpression should be calculated before accessing
• KT-72228 K2: Reformat doesn't work in project with Kotlin 2.0.21
• KT-69671 TYPES phase contract violation through JavaSymbolProvider
• KT-71348 K2: KotlinIllegalStateExceptionWithAttachments: 'By now the annotations argument mapping should have been resolved' during code inspection
• KT-72024 FirClassVarianceChecker: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource
• KT-71746 K2 IDE. ISE: Zero or multiple overrides found for descriptor in FirRegularClassSymbol serializing/ExternalSerializer and red code on @Serializer(forClass) ` usage

Analysis API. Infrastructure

• KT-72922 KotlinFakeClsStubsCache project leakage
• KT-71988 Improve scripts test coverage by LL FIR
• KT-64687 K2: Analysis API: migrate AbstractFirLibraryModuleDeclarationResolveTest to kotlin repo

Analysis API. Light Classes

• KT-73492 K2. FP error in Java file when using @JvmSuppressWildcards annotation without arguments
• KT-66763 K2: Get rid of context receivers in Analysis API and LL API
• KT-71781 SLC: migrate SLC from KotlinModificationTrackerService to KotlinModificationTrackerFactory
• KT-67963 K2: PsiInvalidElementAccessException on redeclaration of class with constructor
• KT-71407 K2: Do not report @JvmField default value as PsiField initializer in K2
• KT-72078 K2 PSI change for constructor parameter with value class type

Analysis API. Providers and Caches

• KT-69247 Analysis API: Invalidate sessions after builtins modification events
• KT-72704 ISE: No 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter'(53) in array owner: LLFirBuiltinsAndCloneableSession for Builtins for JS/wasm-js (JS)
• KT-67148 Analysis API: Introduce a weak reference cache for the original KtSymbol in KtSymbolPointer
• KT-73395 Analysis API: JavaElementPsiSourceWithSmartPointer contains strong references to PSI
• KT-72390 Kotlin project full of red code
• KT-72388 KaFirStopWorldCacheCleaner: Control-flow exceptions
• KT-72644 "PSI has changed since creation" reason is misleading

Analysis API. Standalone

• KT-73776 Analysis API Standalone: Application services are missing registrations in tests and Dokka
• KT-70346 Analysis API Standalone: Remove the custom class loader option in Standalone session creation

Analysis API. Stubs and Decompilation

• KT-69398 K2 IDE: SOE on editing top level private variable name
• KT-72897 Analysis API: Smart PSI element pointers for KtEnumEntry stubs cannot be restored
• KT-71565 KtClassOrObject should use isLocal from greenStub

Analysis API. Surface

New Features

• KT-73414 Analysis API: Support typealiased constructors in KaConstructorSymbol
• KT-70301 Analysis API: 'KaSamConstructorSymbol' does not allow to find the constructed SAM type
• KT-68236 Analysis API: add isExternal property for KtPropertySymbol
• KT-68598 Analysis API: missed getClassLikeSymbolByClassId API

Performance Improvements

• KT-74112 UI freeze: AnyThreadWriteThreadingSupport.getWritePermit
• KT-73942 Extend resolveToSymbols cache to all references
• KT-73622 Cache resolveToSymbols result
• KT-72684 Drop explicit resolve from KaFirJavaInteroperabilityComponent#asPsiTypeElement
• KT-60486 Analysis API: optimize KaExpressionTypeProvider.returnType for simple cases

Fixes

• KT-70114 K2: Analysis API: do not lazy resolve declarations without deprecation to get it deprecation
• KT-73406 [Analysis API] Allow extending KaModule resolution scope for all KaModules
• KT-65850 Cover Analysis API with KDocs
• KT-72099 Analysis API: implement an API to retrieve default imports
• KT-73662 KotlinIllegalArgumentExceptionWithAttachments: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl
• KT-70108 Analysis API: "KaScopeProvider.scopeContext" provides scopes from implicit companion objects with inaccessible classifiers
• KT-68954 Remove JAR publications with old artifact names (high-level-api family)
• KT-70134 Analysis API: Port API documentation from the guide to KDoc
• KT-72973 Introduce KaSymbolOrigin.TYPE_ALIAS_CONSTRUCTOR
• KT-70356 analyzeCopy with IGNORE_SELF cannot find private members
• KT-66783 Analysis API: KtFirSymbolProvider creates symbols when given PSI from unrelated modules
• KT-72937 Migrate KaFirReceiverParameterSymbol to KaFirSymbol/KaFirKtBasedSymbol
• KT-70243 K2 IDE: PsiMethod.callableSymbol returns null for constructor
• KT-66608 Support OperatorFunctionChecks#isOperator in AA
• KT-73068 Analysis API: A KaFirJavaFieldSymbol for a static Java field is open instead of final
• KT-73055 Get rid of the deprecated Analysis API API
• KT-65065 Provide KtTypeReference#getShortTypeText()
• KT-63800 AA: this reference shortener doesn't simplify label
• KT-72793 Analysis API: 'expressionType' returns raw type for typealiased constructors calls
• KT-72658 resolveToCall doesn't work for KtSafeQualifiedExpression
• KT-69930 K2 IDE: Kotlin/JS project: ISE: "Unsupported type DYNAMIC_TYPE"
• KT-71373 Make KaSessionProvider the internal API
• KT-71869 KaClassSymbol.superTypes for kotlin.Any contains kotlin.Any itself (K1-only)
• KT-64190 K2 IDE: Analysis API: KDoc link leads to a function instead of interface
• KT-72075 defaultType should be available for KaClassifierSymbol instead of KaNamedClassSymbol
• KT-72002 Analysis API: psi KaTypeParameterSymbol for default Java constructor is null

Backend. Native. Debug

• KT-73306 Native: add a way to specify a dir for the debug compilation unit file
• KT-68536 Native: bridges and trampolines affect stepping in the debugger
• KT-72398 Native: use DW_AT_trampoline for objc2kotlin_* functions instead of KonanHook in konan_lldb.py

Backend. Wasm

• KT-71868 K/Wasm: support generating debug information in DWARF format
• KT-71645 [Wasm] Check wasm test runner for groupByPackage=true case
• KT-72232 Wasm, IC: Compilation exception on renaming of file
• KT-73907 Wasm: Duplication of files in browser distribution
• KT-72223 Compiler generates an invalid glue-code for externals with backquoted identifiers
• KT-73015 [Wasm, IC] Implement possibility for readonly IC cache
• KT-71763 K/Wasm: compiler generates incorrect code for is check on JsAny
• KT-72156 custom-formatters.js exists in JAR after publishToMavenLocal but not in the published artifact in Maven public
• KT-71037 [Wasm, IC] Investigate how make kotlin.test not fully loaded in IC

Compiler

New Features

• KT-74049 Introduce special override rule to allow overriding T! with T & Any
• KT-73256 Implement all meta-target for annotations
• KT-73255 Change defaulting rule for annotations
• KT-61447 Support context receivers overloads in Kotlin multiplatform
• KT-67034 Warning when a property hides a Java field from superclass
• KT-71092 Native: Write out used dependencies
• KT-71094 Kotlin/Native incremental compilation: fail compilation if cache build failed
• KT-71569 Improve diagnostic precision for OPT_IN_ARGUMENT_IS_NOT_MARKER

Performance Improvements

• KT-73434 Slow / infinite compile involving ConeInferenceContext
• KT-73328 Do not spill this to a local variable in coroutines
• KT-69995 K2: Slow compilation when star projecting mutually recursive bounds from java
• KT-73687 Inefficient KtCommonFile#getFileAnnotationList
• KT-45452 K/N optimization: inline simple functions that aren't marked with inline keyword
• KT-64898 K2: toFirProperty call in PsiRawFirBuilder forces AST loading
• KT-71673 Consider making EnhancementSymbolsCache. enhancedFunctions using simple cache
• KT-71973 KtPsiUtil#getEnclosingElementForLocalDeclaration shouldn't iterate over directories

Fixes

• KT-75965 The iOS app did not run successfully in Release mode
• KT-57696 Deprecate JvmDefault annotation with level HIDDEN
• KT-75578 K2: False negative [SUPER_CALL_WITH_DEFAULT_PARAMETERS] when calling the upper-class implementation of a method with the default value argument
• KT-74764 Native: merge init nodes generated within the same LLVM module for the same klib
• KT-75444 Contradictions in the constraint system are ignored in case of multiple constraints from forking points
• KT-75649 K2: NPE on assigning platform type value to non-nullable lateinit var
• KT-75483 Native: redundant unboxing generated with smart cast
• KT-73028 K2. FileAnalysisException on private property in Context
• KT-73937 Context parameters: IllegalArgumentException: source must not be null on lateinit var with a context
• KT-74104 Native: SynchronizedLazyImpl produces NPE on 2.1.20-Beta1 on mingwX64
• KT-71752 K2: Absent non-null check for platform types in assignments
• KT-75526 Regression in K2 scripting: local name doesn't shadow one from the implicit receiver
• KT-68131 K2: build Grazie monorepo main branch
• KT-72618 Cannot define operator inc/dec in class context
• KT-74739 Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION_REFERENCE"
• KT-68768 K2: unsuccessful inference fork with jspecify annotations
• KT-71943 K2: IAE "source must not be null" in FirJvmModuleAccessibilityQualifiedAccessChecker
• KT-75111 False negative "This declaration needs opt-in" for usage of enum entry with OptIn marker in another module
• KT-73831 Do not choose field target in annotation classes
• KT-73494 Enable first-only-warn annotation defaulting mode
• KT-74929 False positive TYPE_PARAMETER_OF_PROPERTY_NOT_USED_IN_RECEIVER if it is used with T&Any
• KT-74227 K2: "Cannot infer type for this parameter. Please specify it explicitly" caused by lambda in another lambda with a parameterized function type
• KT-70789 CLI error "mixing legacy and modern plugin arguments is prohibited" on using -Xcompiler-plugin unless default scripting plugin is disabled
• KT-73903 Design 'replaceWith' / 'test-only' kinds for the 'LanguageFeature' class
• KT-74474 K2: Report more precise diagnostic when last expression of non-unit lambda is a statement
• KT-74478 K2: False negative RETURN TYPE_MISMATCH if the last statement of a lambda is indexed assignment
• KT-67480 K/N: a separate inlining phase after the lowerings
• KT-72154 Dokka fails with not array: KClass<out Annotation> on Kotlin 2.1.20-dev with @SubclassOptInRequired
• KT-72040 Extra checkers: false-positive unused parameter warnings on anonymous lambda parameters
• KT-74203 K2: False negative NO_ELSE_IN_WHEN of a generic type with star projection <*> bounded by a sealed hierarchy
• KT-63720 Coroutine debugger: do not optimise out local variables
• KT-74024 K2: Prohibit declaring local type aliases
• KT-73146 Context parameters CLI & diagnostics
• KT-73251 Warn users about removal of context classes and constructors
• KT-72222 Context parameters parsing & resolution part 1
• KT-61175 K2: FirReceiverParameter does not extend FirDeclaration
• KT-73858 Compose / iOS: NullPointerException on building
• KT-73864 [Native] Decouple IrType.computePrimitiveBinaryTypeOrNull from backend.native
• KT-73122 Move the upgrade references lowering to be first one in Native pipeline
• KT-73608 K2: "Initializer type mismatch" with map and typealias to object
• KT-73691 DCE removes static initializer function, which is actually called
• KT-74147 K2: False negative INCONSISTENT_TYPE_PARAMETER_VALUES
• KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS
• KT-73043 K2 Compiler does not allow references to inner constructors with typealiases
• KT-74040 Compilation of inner class usage does not check the visibility of parent class during compilation in different rounds
• KT-74195 Fully qualified names in error messages make them complicated
• KT-74221 Make FirSupertypesChecker a platform checker
• KT-72962 Consider enabling ConsiderForkPointsWhenCheckingContradictions LF earlier
• KT-74242 Freeze on runCatching call in finally block inside SAM conversion
• KT-29222 FIR: consider folding binary expression chains
• KT-73760 Cannot implement two Java interfaces with @NotNull-annotated type argument and Kotlin's plain (nullable) type parameter
• KT-58933 Applying suggested signature from WRONG_NULLABILITY_FOR_JAVA_OVERRIDE leads to red code
• KT-74107 K2: Calling type alias constructor with inner RHS in static scope causes runtime crash
• KT-74244 Context parameters: context isn't checked for expect/actual property declaration
• KT-74276 Update ASM from 9.0 to 9.6.1
• KT-72737 Avoid function references creation in lowerings after FunctionReferenceLowering
• KT-72295 K2: Generated accessors for delegated property should have property source
• KT-73150 Investigate/test approximation of context parameter type in completion
• KT-73862 [Native] Decouple NativePreSerializationLoweringContext from backend.native
• KT-70507 Should parentheses prevent from plus/set operator desugaring?
• KT-72677 K2 IDE / Kotlin Debugger: “Couldn't find virtual file for p1/MainKt$foo$iface$1” on evaluating inline function from another module
• KT-72672 K2 IDE / Kotlin Debugger: “Couldn't find virtual file” on evaluating inline function for enum class entries from test module
• KT-73912 Cannot evaluate inline methods from another module in KMP project
• KT-73765 K2: Prohibit nested type aliases with inner RHS when it captures type parameters implicitly
• KT-73869 [Native] Move KonanSymbols out of backend.native
• KT-73823 Kotlin/Native: IndexOutOfBounds for java.util.Map::getOrDefault
• KT-73755 K2: type mismatch error contains unsubstituted type parameter types
• KT-72837 ERROR_IN_CONTRACT_DESCRIPTION message contains compiler internals
• KT-73771 K2: Infinite compilation caused by buildList without type
• KT-67520 Change of behaviour of inline function with safe cast on value type
• KT-67518 Value classes leak their carrier type implementation details via inlining
• KT-71767 Generate default compatibility bridges in -Xjvm-default=all/all-compatibility mode
• KT-73716 Context parameters expose visibility
• KT-73671 Context parameters: val/var on context parameter on a property is possible
• KT-73510 Context parameters: It is possible to declare a context for init block
• KT-72305 K2: Report error when using synthetic properties in case of mapped collections
• KT-72429 StackOverflowError when compiling large files
• KT-72500 K2 Debugger: NSME on evaluating lambda with a call to internal class field
• KT-73845 K2: IllegalArgumentException during FIR2IR transformation when processing nested default values in annotations
• KT-73538 K2 IDE / Kotlin Debugger: ISE “couldn't find inline method" on evaluating internal inline function with default arg from main module in test module
• KT-73347 K2: Expected is FirResolvedDeclarationStatus
• KT-71226 K2 Evaluator: Code fragment compilation with unresolved classes does not fail with exception
• KT-73902 Clean-up code around lateinit inline/value classes
• KT-73693 K2: DslMarker checker doesn't report violation for callable reference with bound receiver
• KT-73667 K2: DslMarker checker ignores function type annotations for invokeExtension
• KT-72797 K2 IDE / Kotlin Debugger: AE “No such value argument slot in IrCallImpl” on evaluating inc()-operator for private field
• KT-68388 Compiler crash on convesion to fun interface with extension receiver
• KT-73801 False positive CONFLICTING_OVERLOADS between base suspend fun and derived property
• KT-62833 K2: Run smoke FP tests with SLOW_ASSERTIONS enabled
• KT-54068 Context receivers with lambda nesting result in Type mismatch
• KT-51383 Lambdas with context receivers do not accept context receivers from scope
• KT-73331 Context parameters implicit invoke
• KT-73650 Implement DIFFERENT_NAMES_FOR_THE_SAME_PARAMETER_IN_SUPERTYPES for K2
• KT-73745 Migrate modularized tests to the latest stable version
• KT-70233 Implement a deprecation error for FIELD-targeted annotations on annotation properties
• KT-72996 false-positive unresolved reference error on an overloaded callable reference in a lambda return position on the left-hand size of an elvis operator
• KT-73791 Forbid using inline and value class modifiers together
• KT-73704 [Native] Decouple KonanIrLinker from cinterop deserialization
• KT-73641 Context parameters DSL marker support
• KT-59880 K2: Disappeared CONFLICTING_OVERLOADS
• KT-73339 K2: "VerifyError: Bad type on operand stack" because of missing implicit cast on generic field receiver with star projection
• KT-72585 K2: Compilation failure when upgrading to Kotlin 2.0.20+: Cannot replace top-level type with star projection: S
• KT-59443 K2: Implement missing K1 diagnostics
• KT-67517 Value class upcast to Any leaks carrier type interfaces
• KT-73527 Prohibit (via a deprecation warning) accessing nested class through generic outer class
• KT-72852 JAVA_CLASS_ON_COMPANION compiler warning missing in K2
• KT-71704 K2: subAtom already initialized
• KT-73399 compile-time JVM codegen failure on a KProperty argument of a KSuspendFunction parameter
• KT-72281 K/N: "Failed to wait for cache to be built"
• KT-73049 Kotlin Debugger: CNFE on evaluating local function inside lambda
• KT-72725 KMP: Unsupported actualization of inherited java field in expect class
• KT-73476 K2: Visibility of nested type aliases is not respected if RHS is inner
• KT-72957 K2: Don't use offsets for mapping annotations from IR plugins injected into metadata
• KT-72814 FIR: don't use function references in FirThisReference
• KT-73143 Context parameters resolution leftovers
• KT-71649 K2: Put operator on mutableMap<T?, V>() causes crashes on null key
• KT-72832 Erroneous implicit cast inserted by smartcast
• KT-72930 K2 IDE / Kotlin Debugger: ISE “couldn't find inline method” on evaluating internal inline function from main module in test module
• KT-73095 K2: "Failed to find functional supertype for ConeIntersectionType"
• KT-70366 K2: "KotlinIllegalArgumentExceptionWithAttachments: Failed to find functional supertype for class "
• KT-73260 Rename context receivers to context parameters in frontend
• KT-73375 K2/JVM: -Xuse-type-table generates incorrect metadata for local delegated properties
• KT-72470 Annotations on effect declarations are unresolved
• KT-72409 False negative "Type parameter is forbidden for catch parameter"
• KT-72723 K2: Replace unused FIR properties required by inheritence with computed properties
• KT-72246 Exception from FirReceiverAccessBeforeSuperCallChecker on red code
• KT-47289 No error on companion object inside inner class in enum constructor call
• KT-46120 No error reported when Java interface method is implemented by delegation to Java class where corresponding method has different generic signature
• KT-72746 K2: No IR overriddens generated for Nothing.toString
• KT-70389 K2: StackOverflowError at org.jetbrains.kotlin.fir.resolve.calls.CreateFreshTypeVariableSubstitutorStage.shouldBeFlexible
• KT-72537 [FIR Analysis] 'IllegalArgumentException: source must not be null' when typing '++++' (four pluses)
• KT-73010 K2: Refactor DispatchReceiverMemberScopeTowerLevel.processMembers
• KT-72924 Extension property declaration shouldn't be possible in when
• KT-72826 UNUSED_LAMBDA_EXPRESSION compiler warning missing in K2
• KT-25513 Report compilation error when in generated JVM bytecode there is a need for CHECKCAST to inaccessible interface
• KT-73153 K2: Standalone diagnostics on type arguments are not reported
• KT-71252 JVM: Set the proper visibility to backing fields of lateinit properties
• KT-73213 K2: Initialize outer type parameter refs for inner (local) type aliases during FIR building
• KT-73215 Set up isInner property for inner type aliases during FIR building
• KT-73088 K2: Introduce NestedTypeAliases experimental feature
• KT-73192 K2: FirJavaField has incorrect modality
• KT-60310 K2: introduce FirErrorContractDescription to distinguish unresolved contract from error one
• KT-73008 K2: Resolve nested type aliases in derived classes
• KT-73009 K2: Treat nested type aliases as classes during supertypes resolution (they are not inner by default)
• KT-59886 K2: Disappeared ERROR_IN_CONTRACT_DESCRIPTION
• KT-72839 Rewrite processConstraintStorageFromExpression using resolution atoms
• KT-73147 Context parameters FIR2IR support
• KT-72789 Fix inconsistent IR produced by ScriptsToClassesLowering for script instance feature
• KT-66711 K2: INITIALIZER_TYPE_MISMATCH is reported on the whole lambda instead of RETURN_TYPE_MISMATCH on each return expression
• KT-73011 K2: Allow overloads resolution for callable references based on expected type variable with constraints
• KT-73031 K2: Callable reference unresolved inside elvis with a complex function type
• KT-66161 K2: False-positive REDUNDANT_VISIBILITY_MODIFIER for protected modifier in private class
• KT-73065 CCE with context receivers
• KT-72345 K2: Method 'get' without @Override annotation not called
• KT-69981 K2: Refactor ResolutionMode.WithExpectedType.expectedType to be a ConeKotlinType
• KT-68363 ABSTRACT_MEMBER_NOT_IMPLEMENTED diagnostic reported only for the first not implemented function
• KT-72105 JVM: typeOf() result is sometimes incorrectly optimized to null in bytecode
• KT-72813 FIR: fix containing declaration for annotations of a receiver parameter
• KT-72552 AutoboxingTransformer fails on during linkage on nested lambdas with cinteroped types
• KT-71751 K2: Skipping code in last statement of lambda
• KT-72863 K2: failed compilation for a context receiver with an annotated type
• KT-68984 K2: Typealiased SAM constructors resolve to the expanded interface
• KT-57471 K2: Wrong diagnostics for named lambda arguments
• KT-69560 Tidy up test data that affected by PrioritizedEnumEntries or ProperUninitializedEnumEntryAccessAnalysis features
• KT-72894 "Placeholder projection cannot be mapped." error from resolve when using placeholder in a typealias
• KT-70886 FIR/AA: Reduce strong memory footprint of cached symbol names providers
• KT-72238 Argument type mismatch in builder inside extension function after ?:
• KT-72738 Simplify naming scheme for function references
• KT-72340 K1/K2 difference in de-duplication of OPT_IN_USAGE and OPT_IN_TO_INHERITANCE
• KT-61272 Frontend: error message "feature ... is experimental and should be enabled explicitly" does not explain how to do it
• KT-72664 K2: Function type kind is not propagated for parameters of incomplete calls
• KT-64247 K2: FirContextReceiver does not extend FirDeclaration
• KT-67383 Incorrect optimisation when optimising for loop with UByte
• KT-70975 K2: Confusing INVISIBLE_REFERENCE message when accessing nested class in private-in-file class
• KT-72743 CCE in FirUninitializedEnumChecker: FirPropertySymbol cannot be cast to FirEnumEntrySymbol
• KT-71708 False negative UNSUPPORTED for collection literals as trailing return value
• KT-67707 K2: CCE "ArrayMapImpl cannot be cast to class OneElementArrayMap" from FIR evaluator
• KT-71966 Seemingly bug in SupertypeComputationSession#breakLoopFor
• KT-17455 Confusing error message "There's a cycle in the inheritance hierarchy for this type" when outer class inherits nested class
• KT-71119 K2: "AssertionError: Should be primitive or nullable primitive type" caused by comparing Double/Float and Any successor type
• KT-57527 K1/K2: "IllegalArgumentException: Some properties have the same names" with inline class
• KT-57851 Wrong ValueClassRepresentation inside value class
• KT-67998 K2: CANNOT_INFER_PARAMETER_TYPE on incomplete call inside if in a Java SAM
• KT-71961 K2 debugger evaluation ClassCastException in IrElementsCreationUtilsKt#createFilesWithBuiltinsSyntheticDeclarationsIfNeeded
• KT-72504 Optimize KotlinLocalVirtualFile.isDirectory for parent virtual files
• KT-71399 Kotlin Script: NPE on type resolve
• KT-69283 Incorrect synthetic line numbers when inlining suspend funs
• KT-52929 Java cannot extend instantiations of generic Kotlin collections in the presence of instantiated Kotlin subclasses
• KT-71885 K2: confusing message when lateinit var is assigned once
• KT-69920 K2: java.lang.IllegalArgumentException: FirNamedArgumentExpressionImpl.replaceConeTypeOrNull() during Space project compilation
• KT-55894 NI: Compile errors for out-projected types are more cryptic than previously
• KT-72231 K2: NONE_APPLICABLE instead of NAMED_ARGUMENTS_NOT_ALLOWED for non-Kotlin functions with overloads
• KT-72422 KMP: False-positive report of ACTUAL_ANNOTATIONS_NOT_MATCH_EXPECT on SublcassOptInRequired
• KT-72257 'javaClass' method cannot be evaluated in Kotlin project itself
• KT-72408 Introduce new TYPE_VARIANCE_CONFLICT diagnostics
• KT-71508 JAVA_CLASS_INHERITS_KT_PRIVATE_CLASS isn't reported when java class is inherited from an effectively private class
• KT-72177 K2: Argument type mismatch when using star projection
• KT-72245 K2: When Java source roots are passed by file, fully qualified deep packages are unresolved
• KT-63923 Confusing error messages for TYPE_MISMATCH from inference
• KT-57708 Unclear TYPE_MISMATCH messages in certain situations with generics
• KT-72178 K2: "Unexpected FirPlaceholderProjectionImpl" exception when using "_" as key type in EnumMap
• KT-62455 "NullPointerException" with 'multi-field value class'
• KT-72302 K2: no error on type operator in annotation parameter default value
• KT-72212 [Scripting] Guava dependency is not packaged correctly
• KT-71662 PCLA: a type variable is not fixed on demand to a type containing a not-fixed type variable
• KT-72229 K2: Change LV of ProhibitConstructorAndSupertypeOnTypealiasWithTypeProjection to 2.2
• KT-70256 K2: Check for MISSING_BUILT_IN_DECLARATION not only for JVM but for all platforms
• KT-72173 K2: simple object names from root package are resolved without imports in non-root packages when used as values
• KT-71480 JAVA_CLASS_INHERITS_KT_PRIVATE_CLASS isn't reported while java object isn't created
• KT-60034 K2: Introduced NO_GET_METHOD
• KT-72199 K1: Match the shape of references to synthetic Java properties to the shape of their getters
• KT-15672 Improve diagnostics for accessing Enum companion object from enum constructor
• KT-71321 K2: ClassCastException caused by missed type mismatch when passing a method reference
• KT-72041 Extra checkers: false-positive unused parameter warnings on implicit lambda parameters
• KT-71959 NO_VALUE_FOR_PARAMETER should use actual lambda parameter name
• KT-69985 K2: simple classifier names from root package are resolved without imports in non-root packages
• KT-70139 Remove dependencies of debugger on K1 and old JVM backend
• KT-72142 PSI: unrelated enums are treated as equivalent
• KT-57358 False positive "Const 'val' initializer should be a constant value" caused by equality with literals
• KT-71753 PCLA: false-negative operator ambiguity error on fixing a type variable on demand for an operator assignment
• KT-70844 K2 IDE: deprecated marker shouldn't highlight not deprecated type argument
• KT-70854 K2 IDE: annotation on delegation causes illegal argument exception
• KT-56901 NI: Missing error on passing star-projection to reified type argument
• KT-70856 K2: IllegalStateException: Non-empty unresolved argument list
• KT-71897 K2: Don't erase in projections in SAM conversion if -Xsam-conversion=class like in K1
• KT-66464 Introduce isInlineable parameter for FunctionTypeKind
• KT-71590 K2: false alarm from UselessCallOnNotNullChecker
• KT-71919 Wrapped ProcessCanceledException in GenerationState#loadClassBuilderInterceptors
• KT-70922 PSI for KtPropertyAccessor is inconsistent with KtNamedFunction
• KT-28598 Type is inferred incorrectly to Any on a deep generic type with out projection
• KT-71490 K2: missing REDUNDANT_ELSE_IN_WHEN
• KT-36107 Remove deprecated mod operator convention
• KT-71166 Generic synthetic property is unresolved when parameterized with Unit
• KT-71738 K2: False negative REDECLARATION inside object expression
• KT-59908 K2: Disappeared RECURSIVE_TYPEALIAS_EXPANSION
• KT-69937 Define & enforce user-friendly terminology for extended checkers
• KT-68834 Parentheses don't influence calls of any convention operators (except invoke operator) after safe navigation operator
• KT-58437 K2: Do not use descriptors in KonanSymbols
• KT-18563 Do not generate inline reified functions as private in bytecode

Compose compiler

• b/397855145 Fix "Unknown file" error in target annotation inference
• b/377499888 Allow restarting overridden functions in a final class
• b/390151896 Fix default arguments with varargs in @Composable functions
• b/388030459 Kotlin compiler backend exception when lambda with anonymous object is memoized
• b/310004740 Check vararg parameter length in skipping logic
• b/393400768 Use -1 for .changed call if nullable enum parameter is null
• b/388505454 Change order of $changed bits with context parameters
• b/165812010 Support default values in open @Composable functions (K2 only)
• b/285336821 Use stability of parent class in stability inference
• b/353744956 Fix context receiver/parameter handling in Compose
• b/195200551 Call Enum#ordinal on enum values passed to Composer#changed
• b/378697545 Avoid using ComposableSingletons inside public inline functions
• b/376148043 Use remember function source key for intrinsic remember
• b/345204571 Remove IR offsets for conditions generated by Compose compiler
• b/376058538 Fix stack overflow when inferring stability of indirect generic loop
• b/339322843 Transform @Composable property delegate references
• CMP-7571 1.8.0-alpha03 incompatible with Compose based on k1

IDE

• KT-59445 Recursion detected on input: JavaAnnotationImpl

IR. Actualizer

• KT-68830 Compiler crash on missing actual class
• KT-71809 Kotlin-to-Java direct actualization: the property isn't actualized by overridden getter
• KT-71817 Actualization of static members is broken for non-JVM platforms

IR. Inlining

Fixes

• KT-69681 IR: Report warnings on exposure of private types in non-private inline functions
• KT-72776 [JS] Add lowerings around inlining of private functions to the common prefix at the 1st phase of compilation
• KT-72775 [JS] Add lowerings up to "cache private inline functions" to the common prefix at the 1st phase of compilation
• KT-72440 [Native] Add lowerings around inlining of private functions to the common prefix at the 1st phase of compilation
• KT-72439 [Native] Add lowerings up to "cache private inline functions" to the common prefix at the 1st phase of compilation
• KT-74039 IR proto: Rename properties of IrInlinedFunctionBlock
• KT-73987 Cherry-pick the fix for KT-73482 to 2.1.20-Beta1
• KT-73475 Fix validation errors for sharedBox... methods
• KT-73588 Support serialization/deserialization of IrReturnableBlock and IrInlinedFunctionBlock
• KT-69009 Merge -Xverify-ir-visibility-after-inlining and -Xverify-ir-visibility CLI flags
• KT-72915 Use LoweringContext instead of CommonBackendContext for the first stage of compilation
• KT-73101 Try to unbound JsIntrinsic from JsIrBackendContext
• KT-73110 Unbind JS version of Symbols from SymbolTable
• KT-73108 Unbind JS version of Symbols from context
• KT-71864 [JS] Run IrValidator as the first lowering in 1st compilation phase
• KT-73103 Switch InlineCallableReferenceToLambdaPhase to use LoweringContext
• KT-73098 Use LoweringContext for NativeInlineFunctionResolver
• KT-73096 Change LateinitLowering to use LoweringContext instead of CommonBackendContext
• KT-71141 Merge lateinit-related lowerings
• KT-73099 Use BackendContext for the JsCodeOutliningLowering
• KT-73097 Try to use BackendContext for LocalDeclarationsLowering
• KT-73035 Remove field of type SymbolTable from Symbols
• KT-72919 Move JsCommonBackendContext.coroutineSymbols into Symbols
• KT-72916 Drop symbolTable reference from BuiltinSymbolsBase
• KT-72912 Rewrite andAllOuterClasses located in FunctionInlining
• KT-72910 Move isSideEffectFree to the Symbols
• KT-72907 Extract SharedVariablesManager from BackendContext
• KT-72905 Unbind KonanSharedVariablesManager from KonanBackendContext
• KT-70961 [K/N] Test IR inliner on 1st stage with box tests
• KT-72884 Internal error in body lowering: IllegalStateException: Can't inline given reference, it should've been lowered
• KT-72920 Drop context parameter from JsCommonCoroutineSymbols
• KT-72906 Unbind JsSharedVariablesManager from JsIrBackendContext
• KT-67298 Write tests for deserialization/serialization of unbound IR
• KT-72521 Kotlin/Native: java.lang.AssertionError: kfun:androidx.compose.runtime#access$<get-androidx_compose_runtime_ProvidedValue$stable>$p$tComposerKt(){}kotlin.Int
• KT-67220 Drop caching of deserialized/lowered inline functions
• KT-72623 Don't generate synthetic accessors in files other than the one being lowered
• KT-71859 [K/N] Run IrValidator as the first lowering in 1st compilation phase
• KT-67292 Handling assertions before the IR inliner
• KT-70423 KLIB: SyntheticAccessorLowering - generate static factory functions instead of synthetic constructors
• KT-69765 Add language feature to enable IR inliner in K2 1st phase

IR. Interpreter

• KT-72356 K2 Native: IllegalStateException when annotation has the same source range as a constant in another file
• KT-71903 [K/N] Find a way to set up a synchronization point for the IR interpreter
• KT-66450 IR interpreter can't handle entries of lowered enums
• KT-71971 K2 evaluator error on casting object of value type

IR. Tree

Performance Improvements

• KT-74496 8% performance regression in lowerings
• KT-72211 Refactor IrValidator to speed up

Fixes

• KT-73553 [Native] Create testrunners for serialization tests
• KT-73224 Migrate compiler.ir.interpreter to new IR parameter API
• KT-73179 Drop IrAttributeContainer
• KT-67545 Autogenerate DeepCopyIrTreeWithSymbols
• KT-73222 Migrate compiler.ir.inline to new IR parameter API
• KT-72735 Add new IR nodes for callable references
• KT-73248 Merge FileValidator and CheckIrElementVisitor into IrValidator
• KT-73221 Migrate compiler.ir.actualization to new IR parameter API
• KT-73219 Migrate compiler.tests-compiler-utils to new IR parameter API
• KT-73194 [IR] Consider moving platform-independent funs from SymbolLookupUtils to SymbolFinder
• KT-73218 Migrate compiler.tests-common-new to new IR parameter API
• KT-73227 Migrate js:js.tests to new IR parameter API
• KT-73258 [IR] Separate new lookup functionality from IrBuiltins
• KT-73063 [JS][Wasm] Simplify ExpectDeclarationsRemoveLowering
• KT-73350 Migrate :native.tests:klib-ir-inliner to new IR parameter API
• KT-68992 Fix IR serializer to handle IR with unbound symbols
• KT-64866 Support deserializing and serializing unbound IR
• KT-72619 [IR] Steer checks for vararg types with new test directive
• KT-69498 [IR] Merge two IrTypeUtils.kt sources
• KT-72376 Disable vararg types checking in org.jetbrains.kotlin.fir.pipeline.ConvertToIrKt#runMandatoryIrValidation
• KT-69454 [IR] Check vararg types in IrValidator
• KT-68314 Remove IrBuiltins from IrModule
• KT-71944 Move IR lowering phase descriptions to kdoc
• KT-71826 stdlib fails to compile with -Xserialize-ir=all

JavaScript

Performance Improvements

• KT-16379 KotlinJs - ArrayList get is now slow
• KT-71199 K/JS: charSequenceGet intrinsic should bypass Char range checks
• KT-73759 KJS: do not fillArrayVal if using an Array init function
• KT-72180 Fix problems with memory spikes during JS Codegen/Box tests

Fixes

• KT-70987 KJS: @JsExport: NullPointerException with private data class
• KT-75606 KJS: java.lang.AssertionError: Different declarations with the same signatures were detected
• KT-58797 Optimize the code generated for objects on JS and Wasm backends
• KT-48468 KJS / IR: "StackOverflowError" when long and complex js used
• KT-72437 KJS. Invalid copy method for inherited JSO with type parameters
• KT-72974 KJS / ESModules: EagerInitialization annotation has no effect on unused properties
• KT-71788 KJS: NPE when use @JsExport with @JsPlainObject
• KT-43567 KJS: toString() method and string interpolation of variable produce different code
• KT-70778 Kotlin Js companion is undefined in production build
• KT-73130 KJS: Missed break for do/while in generated JS code
• KT-68067 KJS: Overriding methods with default parameters doesn't work
• KT-71656 K2 JS: "IllegalStateException: Class has no primary constructor: kotlin.ULong"
• KT-72598 KJS: Nested @JsPlainObject does not work
• KT-70078 @JsPlainObject compiles broken code when inlining suspend function
• KT-68904 @JsPlainObject breaks when inside a file with @file:JsQualifier
• KT-74067 KJS: ES class constructor is generated with 'return this'
• KT-72883 [JS] AbstractSuspendFunctionsLowering crashes on private top level suspend fun
• KT-70533 KJS: changed string concatenation behavior in 2.0
• KT-71949 K/JS: investigate test failures in MPP codegen tests with friend dependencies
• KT-71857 [JS] Add new step to codegen tests for IR inliner invocation
• KT-14013 JS toString produces different result for nullable/non-nullable ref to the same array
• KT-70803 Investigate generating call with invalid argument count in Js Backend
• KT-72200 Remove legacy JS test executors
• KT-68332 Remove legacy Nashorn script engine
• KT-39337 KJS: remove LabeledBlockToDoWhileTransformation and related things
• KT-72732 KJS / ES6: "SyntaxError: 'super' keyword unexpected here" with enabled -Xir-generate-inline-anonymous-functions and disabled arrow functions
• KT-71821 K/JS tests are failing with coroutines flow and turbine on timeout
• KT-70227 Remove JS from the org.jetbrains.kotlin.test.TargetBackend enum
• KT-71855 ES6ConstructorLowering sets extensionReceiver to a function without extension receiver
• KT-70226 Delete JS tests that were only run with the legacy JS backend

KMM Plugin

• KT-66458 KMM Wizards: Get rid of deprecated 'kotlinOptions'

Klibs

Fixes

• KT-70146 [KLIB Resolve] Don't fail on nonexistent transitive dependency
• KT-75393 Non-JVM artifacts from Kotlin 2.1.20-RC fail on 2.1.x releases due to IMPLICIT_ARGUMENT
• KT-74045 Context parameters: conflicting signatures for properties with/without context on the non-JVM backends
• KT-74050 Kotlin 2.1.0 with K1 throws a signature mismatch of Ir and Descriptor for Composable lambda
• KT-73589 Design & implement signatures for context parameters
• KT-73721 NativeLibraryAbiReaderWithManifestTest - move to Common BE tests
• KT-73855 [Klibs] Changing function body causes change to header klib
• KT-73474 Create NonLinkingIrInlineFunctionDeserializer directly inside inline function resolver
• KT-72627 IrInstanceInitializer is always deserialized having kotlin/Unit type
• KT-71500 Improve "incompatible ABI version" error message
• KT-72965 Ignore subclassOptInRequired constructor warning
• KT-69309 Separate pure KLIB tests from Kotlin/Native tests
• KT-71917 [JS] Make it possible to run IR lowerings before serializing to KLIBs
• KT-67474 K2: Missing @ExtensionFunctionType in metadata in KLIBs
• KT-68756 [K/N] Make it possible to run IR lowerings before serializing to KLIBs
• KT-72333 Ensure KLIBs with old local signatures (< 2.1.20) are mutually compatible with KLIBs with new local signatures (>= 2.1.20)
• KT-71633 [2.1.0] Suspicious "Argument type mismatch" error
• KT-71333 KLIB cross-compilation: Add additional tests

Libraries

New Features

• KT-72480 Move Instant and Clock from kotlinx-datetime to stdlib
• KT-31880 UUID functionality to fix Java bugs as well as extend it
• KT-54606 Print program name in Kotlin/Native executables

Performance Improvements

• KT-72492 Improve String.toFloatOrNull performance
• KT-70695 Float/Double.isFinite can be optimized

Fixes

• KT-73654 Remove org.w3c packages from stdlib documentation
• KT-62423 Consider providing Common atomic types
• KT-28492 Merge sources when building kotlin-osgi-bundle
• KT-74173 The sample code of lazy on stdlib can not run on playground due to "samples" package import
• KT-73695 PublishedApi KDoc's link to inline functions page is not rendered properly
• KT-73817 Part 1. Moving Atomics to kotlin.concurrent.atomics: bootstrap updates
• KT-73743 UninitializedPropertyAccessException on AtomicReference initialization
• KT-73820 Part 2. Moving Atomics to kotlin.concurrent.atomics: move the API to the new package
• KT-73816 Moving common Atomics to kotlin.concurrent.atomics package
• KT-73747 AtomicBoolean.asJavaAtomic() and AtomicBoolean.asKotlinAtomic() have unnecessary type parameter
• KT-74641 k.t.Clock: bypass thread state validation for std::chrono::system_clock::now()
• KT-74676 Wasm: common atomic API actualizations are annotated with wrong experimental annotation
• KT-74600 Common atomic types could be used without explicit opt-in
• KT-73291 Uuid.random() requires security context in WasmJs
• KT-69575 kotlin.uuid.Uuid is not Comparable
• KT-54859 kotlin.repeat should document behavior in the case of negative arguments
• KT-74294 Make the Uuid.parse function able to parse multiple formats
• KT-74279 Introduce Uuid.parseHexDash() and toHexDashString()
• KT-74272 Introduce Uuid.fromUByteArray and toUByteArray
• KT-74314 Reduce bitwise operations on Longs in Uuid implementation
• KT-73391 Provide samples for common atomics API
• KT-73890 Add kotlin-metadata-jvm to .zip compiler distribution
• KT-71099 Mention that selector for maxBy/minBy family is not invoked for 1-element collections
• KT-71762 ReplaceWith properties kdoc is rendered with extra spaces
• KT-73740 Unresolved reference 'AtomicBoolean' in 2.1.20-Beta1
• KT-73762 Warn about @Transient being not sound to use with non-nullable types
• KT-50395 Stdlib documentation for StringBuilder.removeRange is unclear
• KT-36863 Specify which element is returned from max/min functions if multiple elements are equal to min/max
• KT-71606 Provide Atomic and AtomicArray builtins in a bootstrap compiler
• KT-73064 Samplification of the Optional extensions documentation
• KT-69545 Kotlin/Native: Deprecate API marked with FreezingIsDeprecated to error
• KT-61184 Drop redundant @Suppress from some classes in stdlib. After stdlib migration to K2
• KT-72380 Incorrect Duration parsing with extra leading zeros in components and multiple signs
• KT-72278 Clean up redundant stdlib code for Kotlin 2.1
• KT-49026 Add Regex.replace/replaceFirst samples

Native

• KT-75807 CMP caching fails for iOS with Kotlin 2.1.20-RC2
• KT-70202 Xcode 16 Linker fails with SIGBUS
• KT-74377 Kotlin Native: release executable crashes with error 139
• KT-73559 K/Native: AndroidNativeArm64 linking fails starting from Kotlin 2.1.0
• KT-71976 [Native][KLIB Resolve]: compilation error if libraries have the same unique_name and the strategy is allow-all-with-warning or allow-first-with-warning

Native. Build Infrastructure

• KT-72063 Jars using native in their name are incompatible with JPMS
• KT-70990 Kotlin/Native: fix stdlib building task
• KT-71820 Update the coroutines version used in kotlin-native build infrastructure
• KT-71261 Kotlin/Native: enable gradle caching for runtime building tasks

Native. C and ObjC Import

• KT-74043 Drop obsolete parts of Skia (aka ad-hoc C++) import

Native. ObjC Export

• KT-72673 Native: objc2kotlin "virtual" bridges have no debug info

Native. Swift Export

• KT-73623 Swift Export: Interfaces: Add protocol printing
• KT-72703 Translate valueOf into static func
• KT-72102 Create test infra for swift export in IDE
• KT-72096 Create module for swift-export-in-ide
• KT-71898 Swift Export: support List in overrides

Test Infrastructure

• KT-67281 [Tests] Introduce an obligatory diagnostics test directive to choose a test runner
• KT-62472 Remove suppressions of warnings which are presented only in K2 but not in K1 compiler in Kotlin project
• KT-72094 K2: switch DEBUG_INFO_EXPRESSION_TYPE to regular FIR infrastructure for type rendering

Tools. CLI

• KT-73319 Migrate the main JVM CLI pipeline to the phased structure
• KT-74099 Add CLI argument to enable nested type aliases feature
• KT-69384 Add a way to force colored compiler diagnostic output
• KT-73320 Migrate the main JS CLI pipeline to the phased structure
• KT-73922 CompileEnvironmentUtil.writeToJar is unbuffered
• KT-73967 JDK 25: "IllegalArgumentException: 25-ea" with EA builds
• KT-72927 Combine FlexiblePhaseConfig and PhaseConfig
• KT-73244 :compiler:cli-base depends on :compiler:ir.serialization.jvm to read a single property
• KT-70179 K2: Building a file with kotlin-test-junit without junit does not include annotations
• KT-41756 Sanitize stack trace in 'kotlin' runner CLI script

Tools. Commonizer

• KT-74623 Drop metadata version check from KLIB commonizer

Tools. Compiler Plugin API

• KT-71212 Allow compiler plugins to write custom data to declarations metadata

Tools. Compiler Plugins

New Features

• KT-53563 Kotlin Lombok: Support @SuperBuilder
• KT-71547 Lombok Compiler Plugin Does Not Support @Builder on Constructors

Fixes

• KT-73897 PowerAssert: Implicit argument detection is brittle in a number of cases
• KT-74315 Kotlin Lombok: "Unresolved reference" on generating @Builder for static inner class where outer class is also using @Builder
• KT-74102 "Lambda cannot be cast to class kotlin.jvm.functions.Function0" in 2.1.20-Beta1 with Compose
• KT-75159 Compose: Missing 'FunctionKeyMeta' annotation on lamdas declared in non-composable function
• KT-58695 Lombok Builders's subclassing leads to 'Unresolved reference'
• KT-73871 PowerAssert: Comparison via operator overload results in confusing diagram
• KT-73898 PowerAssert: Operator calls with multiple receivers incorrectly aligned
• KT-73870 PowerAssert: Object should not be displayed
• KT-73895 jvm-abi-gen: $serializer class name is written incorrectly to InnerClasses attribute
• KT-73349 Migrate power-assert sources to new IR parameter API
• KT-73366 Migrate parcelize sources to new IR parameter API
• KT-72824 Kotlin power-assert plugin StringIndexOutOfBoundsException

Tools. Compiler plugins. Serialization

• KT-71072 KxSerialization: KeepGeneratedSerializer and sealed class in Map causes initialization-error
• KT-73830 [Kotlin/Wasm] CompileError: WebAssembly.Module(): Compiling function #​10198:"kotlinx.serialization.$serializer.serialize" failed

Tools. Daemon

• KT-73311 "Unable to release compile session, maybe daemon is already down" flakiness
• KT-70556 Add support for SourcesChanges.ToBeCalculated
• KT-72530 The daemon has terminated unexpectedly on startup attempt #​1 with error code: Unknown
• KT-72373 Fix naming for the new daemon symbols added after KT-69929

Tools. Fleet. ObjC Export

• KT-73237 ObjCExport: immutable property translated as mutable

Tools. Gradle

New Features

• KT-41409 Gradle: Support binaries.executable for jvm targets
• KT-58830 Expose AdhocComponentWithVariants API on KGP generated component
• KT-72320 Gradle Plugin Diagnostics Reporter: add emojis to increase visibility

Performance Improvements

• KT-69613 Remove usages of getCanonicalPath and getCanonicalFile in plugins code
• KT-68136 Gradle: improve classloaders cache eviction

Fixes

• KT-73842 Gradle: AGP failing tests with "Failed to calculate the value of property 'generalConfigurationMetrics'" using KGP
• KT-74394 KGP + isolated projects: "Something has been appended to this collector already"
• KT-75262 Gradle test-fixtures plugin apply order breaks the project
• KT-75277 FUS statistics: 'java.lang.IllegalStateException: The value for this property cannot be changed any further' exception is thrown during project import
• KT-75026 Corrupted NonSynchronizedMetricsContainer in parallel Gradle build
• KT-74997 Unexpected KGP warnings about kotlin scripting plugin
• KT-74322 Enable source information by default in Compose compiler gradle plugin
• KT-72337 kotlin-android-extensions plugin should fail the build on apply
• KT-72967 Remove deprecated KotlinPlatformJsPlugin
• KT-74846 Gradle Configuration Cache miss on second build with 2.1.20-Beta2
• KT-74462 Flaky Kotlin Gradle Plugin Tests: IsInIdeaEnvironmentValueSource$Inject not found
• KT-74415 Make composeCompiler.includeSourceInformation true by default
• KT-73782 KGP diagnostics reporter: emojis added to KGP warning/errors are displayed broken on Windows
• KT-74095 Make ToolingDiagnosticBuilder internal API
• KT-74124 Gradle: error message regression of incompatible Gradle version usage
• KT-74639 Executable binaries for JVM test cannot be created unless an additional suffix is set in Groovy
• KT-73728 'generatePomFileForMavenPublication' creates pom with dependencies with 'unspecified' version
• KT-73974 Configuration cache when run Xcode tasks without xcode's environment
• KT-74476 KGP uses internal Gradle API, DefaultArtifactPublicationSet
• KT-62273 Use new FUS plugin in Kotlin
• KT-72963 Remove deprecated KotlinPlatformAndroidPlugin
• KT-74017 Remove kotlin.androidExtensionsPlugin.enabled flag
• KT-73749 KGP diagnostics reporter: emojis are duplicated if a gradle task is executed from the IDEA UI
• KT-72467 kotlin.sourceSets extension not added for KotlinBaseApiPlugin.createKotlinAndroidExtension()
• KT-74143 Gradle: Add workaround for gradle/gradle#31881
• KT-72384 Run Gradle Integration tests against Gradle 8.11
• KT-70150 Android Kotlin Compile Task has ClassPath Backwards
• KT-72495 Warn about kotlin-compiler-embeddable loaded along KGP
• KT-71549 K2: NoSuchMethodError: org.jetbrains.kotlin.incremental.storage.ExternalizersKt.saveToFile with dependency locking
• KT-67277 Gradle: decommission properties to disable precise task outputs backup
• KT-73795 Fix failing checkNodeJsSetup test on Windows
• KT-72383 Compatibility with Gradle 8.11 release
• KT-72394 ProjectDependency.getDependencyProject() is deprecated in Gradle 8.11
• KT-72385 Compile against Gradle API 8.11
• KT-71711 KGP: Kotlin Stdlib is leaking when KGP is applied in buildSrc
• KT-73128 Apply Kotlinlang template for partial HTMLs
• KT-58858 Add KDoc documentation for Kotlin Gradle plugin API
• KT-73076 Kotlin Gradle Plugin API Reference: adjust settings
• KT-72651 Unable to use target for KotlinBaseApiPlugin.createKotlin(Jvm/Android)Extension()
• KT-72303 KGP 2.1.0-Beta2 broke compatibility with KSP
• KT-71405 Compose compiler gradle plugin: project.layout.file can't be used as a value of the 'stabilityConfigurationFiles' option
• KT-71948 KotlinJvmFactory : get rid of replaces with TODO()
• KT-72092 Gradle: use packed klib variant as the default when no packaging attribute is present

Tools. Gradle. JS

• KT-75485 KJS: "Module not found: Error: Can't resolve 'style-loader' and 'css-loader'" in 2.1.20-RC
• KT-74869 KJS: jsBrowserProductionWebpack does not minify output with 2.1.20-Beta2
• KT-74859 Gradle configuration cache issues related to RootPackageJsonTask
• KT-72175 JS, Wasm: Deprecate non-Provider API in JS infrastructure extensions
• KT-66388 KJS / Gradle: Allow using an insecure protocol to download Node.js/Yarn when setting up project using Gradle >= 7
• KT-73614 org.jetbrains.kotlin.gradle.targets.jsAbstractSetupTask.destinationProvider should be public
• KT-72027 JS target build fails on ARM64 Windows
• KT-71362 KGP/JS: moduleName is not compatible with convention plugins
• KT-72874 KJS: NodeJsRootExtension: "'download: Boolean' is deprecated. Use download from NodeJsExtension (not NodeJsRootExtension) instead You can find this extension after applying NodeJsPlugin. This will be removed in 2.2"
• KT-72872 Js, Wasm: downloadBaseUrl in NodeJsEnvSpec could not be disabled

Tools. Gradle. Multiplatform

Performance Improvements

• KT-71888 Default Target Hierarchy results in very large heap usage/OoM when resolving IDE dependencies in larger projects

Fixes

• KT-66542 Gradle: JVM target with withJava() produces a deprecation warning
• KT-71074 Optimize Granular Metadata Dependencies Transformation for Import after adding support for Project Isolation
• KT-74669 Executable binaries for JVM: a jar generated by jvmJar task isn't added to the build/install/testAppName/lib directory
• KT-37964 Gradle application/distribution plugin does not copy and name jar files correctly when using installDist task for multiplatform project
• KT-30878 It's impossible to have .java sources in a Multiplatform Gradle Project with Android, because android() and jvm { withJava() } targets can not be applied to one and the same Gradle Project
• KT-66962 Kapt with Kotlin Multiplatform: Cannot query the value of this provider because it has no value available
• KT-74898 The wording for the warning about incompatible 'application' plugin should be updated to suggest using the new binaries DSL
• KT-72488 Unify freeCompilerArgs property in swiftExport and compilerArgs
• KT-74727 Dependency resolve from a single target KMP module to another kmp module fails on non-found PSM
• KT-75062 Remove usage of deprecated ProjectDependency.getDependencyProject
• KT-71130 Enable Isolated Projects support by default for KMP
• KT-74832 Relax JVM target validation diagnostic in KMP/Jvm projects
• KT-57280 Expose Kotlin Project Structure metadata via consumable configurations instead of accessing all gradle projects directly
• KT-72130 Gradle Project Isolation Violation in build.gradle due to KGP
• KT-74298 Incorrect DSL for swift export settings under the export node
• KT-73620 KMP 2.1.0: Transitive dependency is broken when setting publication groupId
• KT-72112 KotlinNativeLink task fetches configuration that might not exist
• KT-49155 MPP, Gradle: Cannot use test-retry-gradle-plugin with Kotlin multiplatform tests
• KT-61816 Remove Legacy Multiplatform Gradle Plugin
• KT-72068 Distribution for klib cross-compilation is not downloaded during compile tasks
• KT-64998 Granular Metadata Dependencies Transformation is not compatible with Project Isolation
• KT-72454 Revert changes made in KT-69899 i.e. make kotlin.android.buildTypeAttribute.keep = false by default again
• KT-70380 KMM App failed to consume android binary lib
• KT-71529 Deprecate targetFromPreset API with an error

Tools. Gradle. Native

• KT-71398 kotlinNativeBundleConfiguration should not contain dependencies on unsupported platforms
• KT-74403 :commonizeNativeDistribution fails when configured native targets cannot be built on machine
• KT-62826 Show a warning when KGP and K/N versions mismatch
• KT-73572 [Gradle] kotlin.native.cacheKind=none doesn't work anymore
• KT-71722 kotlinNativeBundleConfiguration present in JVM-only Gradle project
• KT-72686 Add warning about Kotlin native home conflict declaration
• KT-71419 Light bundle KGP IT run against a stable K/N version
• KT-70558 False positive up-to-date status for CInterop tasks after changes in .h files

Tools. Gradle. Xcode

• KT-71535 embedSwiftExportForXcode doesn't report configuration error about missed dependency
• KT-72485 Swift Export DSL exposes unused options in binaries section
• KT-66894 XCFramework task fails when name passed to xcframework DSL is different from framework's name
• KT-65675 XCFrameworkTask produces an xcframework with mismatched casing in embedded frameworks

Tools. Incremental Compile

• KT-69333 Remove built-in ABI snapshot implementation
• KT-55940 Kotlin 1.8.0 compiler hangs indefinitely
• KT-29860 Incremental compilation looping or incorrect results

Tools. JPS

• KT-73688 Make it possible to build and run JPS locally
• KT-73607 JPS incremental compilation is broken after KT-71549
• KT-68565 K2: IllegalStateException: Source classes should be created separately before referencing

Tools. Kapt

• KT-75202 K2 kapt: mapped type class literal is converted incorrectly
• KT-64385 K2: Enable K2 KAPT by default
• KT-71154 Kapt tests: EXPECTED_ERROR directive is checked incorrectly
• KT-71776 K2 Kapt in 2.1.0-Beta1 fails with e: java.lang.IllegalStateException: FIR symbol "class org.jetbrains.kotlin.fir.symbols.impl.FirValueParameterSymbol" is not supported in constant evaluation

Tools. Maven

• KT-69231 PowerAssert: Create maven plugin for power-assert

Tools. Scripts

• KT-72277 Legacy REPL implementation is still based on the old backend

Tools. Wasm

• KT-72157 Turn on custom formatters feature by default in development builds
• KT-71361 [Wasm] Make all production-mode binaries optimised with binaryen

v2.1.10: Kotlin 2.1.10

Changelog

Compiler

• KT-73858 Compose / iOS: NullPointerException on building
• KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS
• KT-73043 K2 Compiler does not allow references to inner constructors with typealiases
• KT-74040 Compilation of inner class usage does not check the visibility of parent class during compilation in different rounds
• KT-73339 K2: "VerifyError: Bad type on operand stack" because of missing implicit cast on generic field receiver with star projection
• KT-72585 K2: Compilation failure when upgrading to Kotlin 2.0.20+: Cannot replace top-level type with star projection: S
• KT-73399 compile-time JVM codegen failure on a KProperty argument of a KSuspendFunction parameter
• KT-72725 KMP: Unsupported actualization of inherited java field in expect class
• KT-73153 K2: Standalone diagnostics on type arguments are not reported

Compose compiler

• CMP-5680 Compose compiler: unexpected stability warnings for classes compiled with 2.0.10
• b/381407900 Avoid adding Compose annotations on synthetic classes

IR. Inlining

• KT-73981 [2.1.10] Suppress checkIncorrectCrossFileDeclarationAccess warning for Compose <class>$stable field access

JavaScript

• KT-70778 Kotlin Js companion is undefined in production build
• KT-73130 KJS: Missed break for do/while in generated JS code
• KT-58797 Optimize the code generated for objects on JS and Wasm backends

Klibs

• KT-70146 [KLIB Resolve] Don't fail on nonexistent transitive dependency
• KT-73951 Workaround for "Partial linkage engine may not patch some discrepancies in IR when compiling Kotlin/Native static caches" in 2.1.10

Native

• KT-73559 K/Native: AndroidNativeArm64 linking fails starting from Kotlin 2.1.0

Tools. CLI

• KT-73967 JDK 25: "IllegalArgumentException: 25-ea" with EA builds

Tools. Daemon

• KT-73311 "Unable to release compile session, maybe daemon is already down" flakiness

Tools. Gradle

• KT-73728 'generatePomFileForMavenPublication' creates pom with dependencies with 'unspecified' version

Tools. Gradle. Multiplatform

• KT-73620 KMP 2.1.0: Transitive dependency is broken when setting publication groupId

Tools. Gradle. Native

• KT-73572 [Gradle] kotlin.native.cacheKind=none doesn't work anymore
• KT-71419 Light bundle KGP IT run against a stable K/N version

v2.1.0: Kotlin 2.1.0

Changelog

Analysis API

New Features

• KT-68603 KotlinDirectInheritorsProvider: add an option to ignore non-kotlin results

Performance Improvements

• KT-70757 Performance problem in KaFirVisibilityChecker for KaFirPsiJavaClassSymbol

Fixes

• KT-70437 Class reference is not resolvable
• KT-57733 Analysis API: Use optimized ModuleWithDependenciesScopes in combined symbol providers
• KT-72389 K2: False positive "Redundant 'protected' modifier" for protected property inside protected constructor from private or internal class
• KT-69190 K2: False-positive "redundant private modifier"
• KT-64984 Analysis API: Support Wasm target
• KT-70375 K2: NPE at org.jetbrains.kotlin.analysis.api.fir.symbols.KaFirNamedClassSymbolBase.createPointer
• KT-71259 K2 evaluator: Invalid smart cast info collecting for Code Fragments
• KT-69360 Lack of implicit receiver for the last statement under lambda in scripts
• KT-70890 Analysis API: Experiment with weak references to LL FIR/analysis sessions in session caches
• KT-70657 Analysis API: Inner types from classes with generics are incorrectly represented by the compiled jars
• KT-71055 Suspend calls inside 'analyze()' break the block guarantees
• KT-70815 Analysis API: Implement stop-the-world session invalidation
• KT-69819 K2 IDE: LHS type in callable references is unresolved when it has type arguments and is qualified
• KT-68761 Analysis API: Experiment with limited-size cache in KaFirSessionProvider
• KT-70384 Analysis API Standalone: The same class in the same two renamed jars is unresolved
• KT-71067 Exceptions from references cancel Find Usages
• KT-69535 Redesign 'containingSymbol'
• KT-71025 K2 IDE: Scopes in "importingScopeContext" have reversed ordering and "indexInTower" values
• KT-67483 K2 IDE: Serializable plugin causes infinite resolve recursion when there is a star import from a class with annotation call
• KT-69416 K2 IDE / Completion: “No classifier found” on simple value creating
• KT-70257 CCE: class kotlin.UInt cannot be cast to class java.lang.Number
• KT-70376 K2 IDE / Kotlin Debugger: IAE “Only componentN functions should be cached this way, but got: toString” on evaluating toString() method for value class
• KT-70264 AA: service registration via XML fails with AbstractMethodError in Lint CLI
• KT-69950 Analysis API: Introduce isSubtypeOf(ClassId)
• KT-68625 K2: “lazyResolveToPhase(STATUS) cannot be called from a transformer with a phase STATUS.”
• KT-67665 K2: contract violation for value class with a constructor parameter with an implicit type
• KT-67009 Analysis API: Add abbreviated type tests for type aliases from source modules
• KT-69977 KaFirFunctionalType#getAbbreviation is always null
• KT-68341 Analysis API: Expanded function types from libraries don't have an abbreviated type
• KT-68857 Analysis API: Refactor annotations
• KT-70386 Do not filter out overloads from different libraries in dangling files
• KT-65552 K2: CANNOT_CHECK_FOR_ERASED in KtTypeCodeFragment
• KT-65803 K2: Analysis API: KtFirTypeProvider#getSubstitutedSuperTypes throws an exception in the case of "Wrong number of type arguments"
• KT-68896 Support VirtualFile binary dependency inputs to Analysis API modules
• KT-69395 K2 IDE: incorrect overload selection from binary dependencies in a shared native source set
• KT-68573 ISE: "Unexpected constant value (kotlin/annotation/AnnotationTarget, CLASS)" at Kt1DescUtilsKt.toKtConstantValue()
• KT-69576 Analysis API: FIR implementation of "isImplicitReferenceToCompanion" returns false for companion references in implicit invoke operator calls
• KT-69568 Analysis API: FIR implementation of "isImplicitReferenceToCompanion" returns true for non-companion references in qualified calls
• KT-69436 Analysis API Platform: Encapsulate LLFirDeclarationModificationService as an engine service
• KT-63004 K2: Analysis API: Design API for querying declarations generated by compiler plugins (similar to indices)
• KT-69452 AA FIR: wrong source PSI after compile-time evaluation
• KT-69598 AA: definitely not-null type at receiver position should be wrapped in parenthesis
• KT-60484 Analysis API: add support for KtType pointers similar to KtSymbolPointer
• KT-68884 Analysis API: Rename/deprecate/remove declarations as part of Stabilization
• KT-69453 AA FIR: miss to handle expected type of lambda with explicit label
• KT-69533 Protect implementation parts of Analysis API with opt-in annotations

Analysis API. FIR

Performance Improvements

• KT-71566 FirElementBuilder#getFirForNonKtFileElement should iterate a Psi file over and over
• KT-71224 Analysis API: FirElementFinder.collectDesignationPath relies on naive iteration through FIR files

Fixes

• KT-70327 Analysis API: Batch inspection causes deadlock in ValueWithPostCompute
• KT-69070 Analysis API: Querying declared member scope for Java symbols results in exception in some use cases
• KT-68268 LLSealedInheritorsProvider: reduce scope to kotlin files
• KT-69671 TYPES phase contract violation through JavaSymbolProvider
• KT-70624 Declaration symbols from code fragments are treated as not local
• KT-70662 NPE: FirLazyBodiesCalculatorKt.calculateLazyBodyForProperty
• KT-70859 Do not fail highlighting due to resolution problems
• KT-70474 FirLazyResolveContractViolationException from JavaSymbolProvider
• KT-70323 FirLazyResolveContractViolationException: lazyResolveToPhase(TYPES) cannot be called from a transformer with a phase TYPES
• KT-71567 LLFirCompilerRequiredAnnotationsTargetResolver should calculate annotation arguments on demand
• KT-71584 getNonLocalContainingOrThisDeclaration treats KtParameter from functional type as non-local

Analysis API. Light Classes

Performance Improvements

• KT-69998 Drop redundant cache from ClassInnerStuffCache

Fixes

• KT-69833 Support value classes
• KT-71693 Wrong name mangling for JvmField class property and companion property clash
• KT-71469 KtLightClassForDecompiledDeclaration: missed kotlinOrigin
• KT-70710 Provide light classes for KMP modules in Android Lint
• KT-70548 SLC: text of class object access expression is not the same as raw text
• KT-70572 SLC: missing isInheritor implementation for type parameter
• KT-70491 SLC: inconsistent source PSI of no-arg constructor for all default values
• KT-70458 SLC: missed auxiliaryOriginalElement for delegated property
• KT-70232 Support a companion object inside value classes
• KT-70349 @delegate:` annotations are missed for light class fields
• KT-68328 Move KtLightClassBase to ULC

Analysis API. Providers and Caches

• KT-65618 K2: resulted FirClass.psi != requested PsiClass from completion
• KT-69292 K2: Analysis API: A property's MUST_BE_INITIALIZED diagnostic is not updated after changing field usage in an accessor
• KT-71468 Drop redundant logic from LLFirJavaFacadeForBinaries
• KT-71700 Cache result of resolveToCall
• KT-71520 Analysis API: LLFirNativeForwardDeclarationsSymbolProvider spends a lot of time in indices

Analysis API. Standalone

• KT-65110 Analysis API: In Standalone mode the order of symbols is unstable

Analysis API. Stubs and Decompilation

• KT-71565 KtClassOrObject should use isLocal from greenStub

Analysis API. Surface

New Features

• KT-69960 resolveToCallCandidates should support operators
• KT-69961 resolveToCallCandidates should support properties

Performance Improvements

• KT-70529 KaSymbol: reduce the number of cached usages
• KT-70165 Introduce PSI-based KaSymbols for K2

Fixes

• KT-69371 Analysis API: expose only interfaces/abstract classes for the resolution API
• KT-69696 KaSymbolByFirBuilder should filter call-site substitutions
• KT-69679 KaDelegatedConstructorCall should have substituted signature
• KT-70206 anonymousSymbol API throws an exception for regular functions
• KT-69699 Receiver type is not substituted in the case of conflict declarations
• KT-69381 Analysis API: Investigate the viability of current KaSymbol caches
• KT-70199 K2: ConcurrentModificationException at FirCallCompleter$LambdaAnalyzerImpl.analyzeAndGetLambdaReturnArguments
• KT-70661 Invalid FirDeclarationOrigin ScriptTopLevelDestructuringDeclarationContainer
• KT-70663 KaFirDestructuringDeclarationSymbol: Failed requirement
• KT-63490 Analysis API: Accessing the Analysis API should be prohibited during dumb mode
• KT-63390 K2: Analysis API: add annotations to KtClassInitializerSymbol
• KT-55124 Design common ancestor for KtValueParameter and KtReceiverParameterSymbol
• KT-71731 directlyOverridenSymbols/allOverridenSymbols works incorrectly for intersection overrides

Apple Ecosystem

• KT-66262 Deprecate and remove support for bitcode embedding from the Kotlin Gradle plugin
• KT-66894 XCFramework task fails when name passed to xcframework DSL is different from framework's name
• KT-65675 XCFrameworkTask produces an xcframework with mismatched casing in embedded frameworks
• KT-69119 xcodeVersion task fails if Xcode isn't installed and apple-specific native targets aren't declared

Backend. Wasm

New Features

• KT-70786 Improve DX of the variable view during debugging in Chrome/Firefox for Kotlin/Wasm
• KT-70331 Support incremental compilation for the Wasm backend
• KT-71686 K/Wasm: Add functions to convert between Kotlin and JS array types
• KT-68185 [WasmJs] Attach js exception object to JsException

Fixes

• KT-71294 Wasm Artifacts/Resource are being loaded relatively instead of absolutely
• KT-71473 K/Wasm: Use --closed-world and related options for Binaryen
• KT-72297 [Wasm] Unused associated object class lead to compiler fail
• KT-72156 custom-formatters.js exists in JAR after publishToMavenLocal but not in the published artifact in Maven public
• KT-65799 K/Wasm: remove default exports from wasm exports
• KT-71800 Wasm compiler: Fix member generation for data classes with an array-type property
• KT-71580 String::toFloat on wasm behaves differently compared to other targets
• KT-71523 K/Wasm: cleanup after fix for KT-71474
• KT-71475 K/Wasm: KClass::qualifiedName returns incorrect result for nested or companion objects
• KT-71474 K/Wasm: KProperty*Impl equals work incorrectly for clabbale reference created in different files or modules
• KT-61130 K/Wasm: Function signatures may clash with base class internal methods from a friend module
• KT-70820 [Kotlin QG] wasm-validator fails when running compile[...]KotlinWasmJsOptimize
• KT-70819 [Kotlin QG] node.js fails when running wasmJs[...]Test KGP tasks
• KT-70394 Investigate increased wasm binary size after switching stdlib compilation to K2
• KT-69627 Remove create###Array functions from WASM stdlib
• KT-68509 Fatal: error validating input in compileProductionExecutableKotlinWasmJsOptimize

Compiler

New Features

• KT-71094 Kotlin/Native incremental compilation: fail compilation if cache build failed
• KT-21908 Support 'when' exhaustiveness checking for generic type parameter with sealed class upper bound
• KT-70679 Kotlin/Native: fill WritableTypeInfo from Swift Export type mapping
• KT-59798 Builder inference is not working when combined with let expression
• KT-54227 Cannot use nullable Nothing as reified type parameter
• KT-71430 Kotlin-to-Java direct actualization implementation
• KT-68163 Expose supplementary compiler warnings via CLI
• KT-69321 Swift export: enable auto-linkage of binary dependencies
• KT-11526 Improve diagnostics for "X overrides nothing"
• KT-49710 False positive NO_ELSE_IN_WHEN with nullable type as receiver
• KT-69729 Support calling super interface Java methods from Kotlin interface
• KT-69508 Improve "Public-API inline function cannot access non-public-API" check for the inline property accessors

Performance Improvements

• KT-71353 FP Kotlin performance degradation (around Cone types hierarchy changes)
• KT-71159 [K2] OOM on large enum classes with fields
• KT-69718 K2: Check for jvm nullability annotations in fir2ir is slow
• KT-68417 Native: LLVM 16 inliner is slow on K/N-produced modules
• KT-63971 K2: Redundant @ParameterName in abbreviated type in metadata

Fixes

• KT-71550 JVM IR: NPE on identity equals of boolean true with null
• KT-72214 -fpass-plugin (clangFlags) is not applied since Kotlin 2.0.20
• KT-68933 CompilationException: Back-end: Could not get inlined class
• KT-72255 Promote jspecify from warning to error
• KT-73065 CCE with context receivers
• KT-61033 K2: implement a diagnostic corresponding to K1's MISSING_BUILT_IN_DECLARATION
• KT-72345 K2: Method 'get' without @Override annotation not called
• KT-71260 K2: Internal compiler error in IrFakeOverrideSymbolBase.getOwner when there is no actual for expect
• KT-72996 false-positive unresolved reference error on an overloaded callable reference in a lambda return position on the left-hand size of an elvis operator
• KT-72552 AutoboxingTransformer fails on during linkage on nested lambdas with cinteroped types
• KT-71751 K2: Skipping code in last statement of lambda
• KT-71121 Kotlin/JS incremental compilation fails with KotlinIllegalArgumentExceptionWithAttachments
• KT-60521 Drop language versions 1.4 and 1.5
• KT-70461 K2: "Inline class types should have the same representation" caused by value class and smart check
• KT-72238 Argument type mismatch in builder inside extension function after ?:
• KT-70306 K2: Lambdas are unserializable: inferred from Java param ? super I
• KT-67383 Incorrect optimisation when optimising for loop with UByte
• KT-68653 Switch latest stable language version in Kotlin project to 2.1
• KT-71708 False negative UNSUPPORTED for collection literals as trailing return value
• KT-72281 K/N: "Failed to wait for cache to be built"
• KT-72017 Enum property reflection returning null KClassifier property for Enum classes defined inside Kotlin Scripts
• KT-69040 PCLA: deal with "deep" calls that can be fully analyzed properly
• KT-69920 K2: java.lang.IllegalArgumentException: FirNamedArgumentExpressionImpl.replaceConeTypeOrNull() during Space project compilation
• KT-69549 Try to move callable reference transformation earlier in pipeline
• KT-63944 Kotlin/Native: Cache flavor selection doesn't respect GC kind
• KT-71649 K2: Put operator on mutableMap<T?, V>() causes crashes on null key
• KT-70667 K2: "Type parameter * has inconsistent bounds" caused by wildcard and where-clause
• KT-70562 @SubclassOptInRequired cannot accept multiple experimental marker
• KT-69407 K2: Compiler crash (Shouldn't be here) due to unresolved reference in FirProjectionRelationChecker
• KT-71508 JAVA_CLASS_INHERITS_KT_PRIVATE_CLASS isn't reported when java class is inherited from an effectively private class
• KT-72178 K2: "Unexpected FirPlaceholderProjectionImpl" exception when using "_" as key type in EnumMap
• KT-70407 Error/warning message for @SubclassOptInRequired-annotated class should provide more context
• KT-72302 K2: no error on type operator in annotation parameter default value
• KT-58820 OPT_IN_USAGE_ERROR's message text does not account for SubclassOptInRequired
• KT-71662 PCLA: a type variable is not fixed on demand to a type containing a not-fixed type variable
• KT-69739 K2: "KotlinIllegalArgumentExceptionWithAttachments: Unexpected FirPlaceholderProjectionImpl" caused by unresolved references
• KT-72154 Dokka fails with not array: KClass<out Annotation> on Kotlin 2.1.20-dev with @SubclassOptInRequired
• KT-70756 K2. Compiler crash with FileAnalysisException on incorrect symbol in nesting lambda
• KT-72173 K2: simple object names from root package are resolved without imports in non-root packages when used as values
• KT-71480 JAVA_CLASS_INHERITS_KT_PRIVATE_CLASS isn't reported while java object isn't created
• KT-71034 Failing compiler/testData/codegen/box/inlineClasses/kt70461.kt
• KT-71016 K/Wasm: Failing compiler/testData/codegen/box/inlineClasses/kt70461.kt
• KT-52469 Deprecate reified type parameter instantiating into intersection types
• KT-71753 PCLA: false-negative operator ambiguity error on fixing a type variable on demand for an operator assignment
• KT-59871 K2: Fix introduced diagnostics
• KT-71563 'llegalStateException: Source classes should be created separately before referencing' when actualized through typealias and java direct actualization
• KT-64741 Avoid leaking ConeTypeVariable types in diagnostics from PCLA
• KT-60447 Builder inference fails to infer generic type argument from local class
• KT-69170 K2: "Unresolved reference" caused by generics and fun interfaces
• KT-71756 K2 evaluator: broken resolve of private members during debug of Kotlin project itself
• KT-68893 Invalid annotation in contract crashes with K2
• KT-71490 K2: missing REDUNDANT_ELSE_IN_WHEN
• KT-64403 Implement BlackBoxCodegenTestSpecGenerated for K2
• KT-71551 JVM IR K1: NPE on generating a function imported from an object from another module
• KT-71210 K2: false negative FUNCTION_CALL_EXPECTED / NESTED_CLASS_ACCESSED_VIA_INSTANCE_REFERENCE with companion objects
• KT-71528 K2/JVM: ClassCastException around Array<Nothing?>
• KT-71228 K2: "IllegalArgumentException: Failed requirement" caused by lambda parameter and class type
• KT-71738 K2: False negative REDECLARATION inside object expression
• KT-71701 K2: false positive CAN_BE_VAL with lateinit and non-in-place lambda
• KT-68694 K2 IDE / Kotlin Debugger: AE “Unresolved reference: <HIDDEN: samples/gen/classes/enum class/EnumClass.lam is invisible” on evaluating private lambda inside enum entry
• KT-70970 K2 IDE / Kotlin Debugger: AE “Only assignable IrValues can be set” on calling overloaded inc() operator on interface
• KT-70824 K2: NoSuchFieldException when evaluating private extension property
• KT-70390 K2 IDE / Kotlin Debugger: can't invoke lambda from private class during evaluation
• KT-68701 K2 IDE / Kotlin Debugger: AE “ERROR_CALL 'Unresolved reference: <HIDDEN: /privateLambda is invisible>#' type=IrErrorType(null)” on evaluating private top-level lambda
• KT-68695 K2 IDE / Kotlin Debugger: AE “Unsupported callable reference” on evaluating ::lateinitStr on private lateinit property
• KT-70861 K2 IDE / Kotlin Debugger: can't evaluate Clazz::class call for private class
• KT-34911 Improve error message for WRONG_ANNOTATION_TARGET: list applicable targets
• KT-71601 K2: When with a subject of type dynamic always considered exhaustive
• KT-33091 Kotlin/Native: Compiler crashes if an external class is declared
• KT-59651 K1/K2: Assertion error on external enum usage attempt
• KT-69939 Extract a category of internal FIR checkers from supplementary FIR checkers
• KT-70850 Pull down typeArguments from ConeKotlinType to ConeClassLikeType
• KT-71117 K2: "IllegalArgumentException: No type for StarProjection" with star projection and function type
• KT-71251 Native & JS K2: Missing check for calling isInitialized inside inline fun
• KT-70161 Native: extracting LLVM 16 on Linux makes the compiler print many "Ignoring unknown extended header keyword 'LIBARCHIVE.creationtime'" messages
• KT-71215 K2: UB due to the erroneous greening of the red code with multiple delegation with java
• KT-59386 K2: Missing CONSTANT_EXPECTED_TYPE_MISMATCH
• KT-69564 Make using -Xuse-k2 compiler flag an error
• KT-69756 TypeOfLowering: don't create constant object nodes before inlining
• KT-66328 K2: implement an error for KT-66324
• KT-71046 K/N: a separate lowering to convert function reference to IrConstantObject
• KT-69223 Drop parallel lowering mode in JVM backend
• KT-70260 @JsPlainObject: improve compiler error if a method is present
• KT-67739 Improve error message when JDK used in -Xjdk-release has corrupted class files
• KT-63964 K2: different naming of classes defined in script in metadata
• KT-70014 Common inference: introduce rigidTypeMarker
• KT-71352 Cannot load script definition class org.gradle.kotlin.dsl.KotlinProjectScriptTemplate
• KT-63502 Getting java.lang.ClassNotFoundException: javaslang.λ during compilation
• KT-66316 Kotlin/Native: make @Escapes annotation required for all external functions
• KT-69653 Prohibit exposing types via type parameters' bounds
• KT-68451 Inconsistent rules of CFA in enum initialization block
• KT-70893 K2: Bogus NO_COMPANION_OBJECT on resolve to private qualifier
• KT-70965 FIR/AA: Initializers for Java annotation arguments mapping capture use-site sessions
• KT-63945 K2: Prevent possible diagnostic loss
• KT-64453 K2: Implement ComposeLikeIr...TestGenerated for K2
• KT-30424 Confusing error message "modality is different"
• KT-70846 Replace ConeKotlinType.nullability with isMarkedNullable on specific types
• KT-56720 K2: false positive MANY_IMPL_MEMBER_NOT_IMPLEMENTED in case of delegation in diamond inheritance
• KT-69937 Define & enforce user-friendly terminology for extended checkers
• KT-64406 K2: Implement CompileKotlinAgainstJavaTestGenerated for K2
• KT-69938 Validate sets of default compiler warnings and supplementary compiler warnings
• KT-68971 Investigate suspicious fragmentation of FIR trees for string literals with interpolation
• KT-71073 Multi-dollar strings: parser grabs too much if backticks follow a short sequence of '$'
• KT-71213 Rethrow exceptions in checkers with some useful attachments
• KT-70395 K2: "Captured Type does not have a classifier" caused by out type and interface hierarchy
• KT-70133 K2: false negative UNINITIALIZED_VARIABLE when postponed lambda is created before initialization
• KT-70625 K2: ClassCastException caused by function reference, star projection and invariant type parameter
• KT-70835 K2: "TYPE_MISMATCH" caused by operator assignment
• KT-70366 K2: "KotlinIllegalArgumentExceptionWithAttachments: Failed to find functional supertype for class "
• KT-68834 Parentheses don't influence calls of any convention operators (except invoke operator) after safe navigation operator
• KT-70358 K2: "java.lang.IllegalArgumentException: No type for StarProjection" when using a star projection on a function type
• KT-69298 K2: "Initializer type mismatch" caused by elvis operator type inference for nullable typealias
• KT-71189 K2: emit 'DELEGATE_SPECIAL_FUNCTION_MISSING' and 'DELEGATE_SPECIAL_FUNCTION_NONE_APPLICABLE' on 'by' keyword
• KT-71178 K2: False negative NO_ELSE_IN_WHEN in when over nullable type with !is Nothing? check
• KT-70812 False positive NO_ELSE_IN_WHEN with nullable type argument as subject
• KT-70947 False positive NO_ELSE_IN_WHEN with DNN subject and nullable sealed class upper bound
• KT-70752 Review diagnostics with whole declaration as range
• KT-71160 K2: Rendering of flexible collection types and arrays is too verbose
• KT-61227 Definitely non-nullable types cause "Any was expected" for @Nullable parameter
• KT-69389 K2: NONE_APPLICABLE instead of more useful "type mismatch" error with overloads and parameter nullability mismatch
• KT-69829 Missed UNRESOLVED_LABEL for label in returns and loops
• KT-61223 JDK 21: new addFirst/addLast and putFirst/putLast methods allow adding nullable value for non-null types
• KT-66742 Supertypes with inaccessible type arguments are allowed
• KT-62906 Type system: consider changing simple type & DNN type relation
• KT-70104 Update the error message for calling super Java interface methods case
• KT-69794 K2: Wrong target is reported for EXPOSED_SUPER_INTERFACE diagnostic
• KT-70724 False-positive UNINITIALIZED_VARIABLE for inline constructor with late-initialized variables
• KT-70749 False-positive UNINITIALIZED_VARIABLE for inline fun with crossinline modifier
• KT-65805 Migrate builtins serializer to K2
• KT-71004 FirSignatureEnhancement#enhance mutates attributes on the original function
• KT-70813 Questionable behavior for calls on ILT receivers
• KT-70208 'when' is not exhaustive for expect Boolean
• KT-69210 Native: tune LLVM optimization pipeline
• KT-70753 K2: Missing non-null assertion on the return value of try-catch block
• KT-70012 EXTENSION_SHADOWED_BY_MEMBER shouldn't be reported for actual declarations
• KT-70837 K2. "Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource" on incorrect call with extension fun
• KT-66751 Implement a general deprecation of types with inaccessible type arguments
• KT-68748 K2: Remove irFactory from Fir2IrComponents
• KT-61659 K2: Implement the EXTENSION_SHADOWED_BY_MEMBER warning
• KT-70709 Range for MUST_BE_INITIALIZED shouldn't include property annotations
• KT-63294 Do not use duplicated compiler argument names across the codebase
• KT-70673 False positive NO_ELSE_IN_WHEN with nullable Boolean as subject
• KT-70672 False positive NO_ELSE_IN_WHEN with nullable Enum as subject
• KT-69207 Native: use lld when the compiler produces binaries for a Linux target
• KT-67696 Native: compiler crashes when loading an LLVM bitcode file of unsupported version
• KT-69767 K2: Investigate differences in tests without alias behavior for cyclic expansion
• KT-70617 K2: ClassCastException caused by Java enum with overridden name property
• KT-68796 Non-first invoke operator calls break chained calls of convention operators after safe navigation operator
• KT-67772 K2: Metadata misses NoInfer annotation for unsafeCast result
• KT-70304 [FIR2IR] Missing @NoInfer
• KT-65085 K2: Get rid of special check for unresolved array literals on argument mapping phase
• KT-65066 K1 crashes, K2 doesn't report type mismatch on array literal inside nested annotation call
• KT-49235 Kotlin interface limited to 1000 super types
• KT-69991 K2/JVM: Backend crash with functional types and KFunctions
• KT-7461 Forbid using projection modifiers inside top-level Array in annotation's value parameter
• KT-52315 Legacy keywords (header, impl) break enum definitions
• KT-69499 Native: aggressive inline of runtime procedures causes compiler crash in debug builds
• KT-69737 Native: incompatible target-cpu attributes between runtime and Kotlin code
• KT-69911 Unexpected line numbers in default setter
• KT-61529 K2: Unexpected FirClassLikeSymbol null with -no-jdk
• KT-69475 K2: No "Name contains illegal characters" for package name with dots inside
• KT-69484 Native: remove default values for isObjectType
• KT-70352 K2: False-negative CONFLICTING_UPPER_BOUNDS on Nothing bound
• KT-59781 K2: investigate implicit cast generation in fir2ir vs psi2ir
• KT-70036 [FIR2IR] Fix param name in overridden setter
• KT-68718 [JVM] Generic function is instantiated with wrong type argument
• KT-67983 K2: False negative "Recursive type alias in expansion" at recursive typealiases
• KT-70328 K2: @UnsafeVariance stored in the metadata despite the Source retention
• KT-70313 K2: Don't add Any supertype to kotlin.Nothing compiled from sources
• KT-69982 K2: New errors when executing :kotlin-stdlib:jvmJar
• KT-70169 K2: implement a deprecation error for Synchronized, Throws, JvmField on annotation parameters
• KT-67651 K2: inconsistency in behavior for SAM constructor with flexible type
• KT-63857 K2: Extra operator modifier in metadata
• KT-70182 K2: Set up isOperator flag according to operator naming conventions during building synthetic overrides for Java methods
• KT-20798 Implement a deprecation warning for reified modifier on type parameters of type alias
• KT-68697 K2 IDE / Kotlin Debugger: NSEE “List is empty.” when method reference is used in some place in code
• KT-70157 K2: false positive JAVA_CLASS_INHERITS_KT_PRIVATE_CLASS for a Java private class
• KT-68702 K2 IDE: AE “SyntheticAccessorLowering should not attempt to modify other files!” on evaluating of supermethods toString() and hashCode()
• KT-69509 K2 IDE / Kotlin Debugger: exception in lowering ReplaceKFunctionInvokeWithFunctionInvoke when compiling code fragment
• KT-66323 K2: Clarify contracts of ConeSubstitutorByMap
• KT-69652 K2: False positive "Redundant visibility modifier" with explicitApi()
• KT-65815 K2: False-positive NO_RETURN_IN_FUNCTION_WITH_BLOCK_BODY with inline function returning Nothing?
• KT-60508 K2/stdlib: compilation of common code fails if built-in types are provided as platform sources
• KT-70037 K2: Generate IR body for Any constructor despite that fact it's empty
• KT-69870 K2: False positive NO_VALUE_FOR_PARAMETER for override without default but base with default and with enabled KMP
• KT-69599 K2: Investiage and fix lots of UNRESOLVED_REFERENCE during building stdlib native with K2
• KT-68375 K2: FirPrimaryConstructorSuperTypeChecker fails on generated superclasses
• KT-58309 Deal with test failures inside FirTypeEnhancementTestGenerated
• KT-27112 Implement prohibition of exposing types via type parameters' bounds
• KT-69831 Add long FastJarFS tests to the nightlyFirCompilerTest configuration
• KT-69537 K2: Unintentional behavior caused by InferMoreImplicationsFromBooleanExpressions
• KT-59814 K2: Explore why FirDataFlowAnalyzer strips away value parameters of non top-level-functions
• KT-69069 K2: expect overloads are deprioritized in common code
• KT-69511 KJS / K2: False positive IMPLICIT_BOXING_IN_IDENTITY_EQUALS when comparing dynamic with primitive
• KT-69500 Native: introduce an option to inline less "ALWAYS_INLINE" runtime procedures
• KT-69717 K2: Don't call coneType/coneTypeOrNull extensions on FirResolvedTypeRef
• KT-60440 K2/Java: investigate constructor own type parameters enhancement
• KT-69871 K2 allows modifier keywords on package declaration
• KT-61271 Frontend: "The label does not denote a loop." error message is used even if the label does denote a loop
• KT-69768 K2: Investigate differences in tests without alias behavior with typealias to enum entry
• KT-63846 K2: incorrect type argument inferred for smart cast value of a generic type
• KT-69774 Don't report overload resolution ambiguity if extension receiver contains error type
• KT-61316 K2: Consider throwing exception when replaceType is called on special FirExpressions with immutable types
• KT-69201 Discard expect candidate in overload conflict resolver if there is no actual
• KT-69557 K2: Investigate failures with enabled assertion in ConeResolvedAtom constructor
• KT-69783 K2: Make FirTypeProjection sealed
• KT-68000 Investigate getting container functions in checkers
• KT-69649 K2: Cleanup various utilities about toSymbol conversion
• KT-69185 K2: Prepare a test runner for diagnostic tests with type aliases non-expanded automatically
• KT-69390 UNRESOLVED_REFERENCE on call with lambda argument turns whole call red
• KT-68794 K2 IDE / Kotlin Debugger: ISE “No real overrides for FUN FAKE_OVERRIDE name:privateFun visibility:private modality:FINAL” on calling private function from superclass in debugger
• KT-69315 FirJavaGenericVarianceViolationTypeChecker: StackOverflowError
• KT-49962 "Visibility inherited is not allowed in forVisibility" when analyzing broken file
• KT-24212 Report "This class shouldn't be used in Kotlin" on calling constructor of Java class with Kotlin analog
• KT-64195 K2: Consider make FirAnonymousInitializer. containingDeclarationSymbol not null
• KT-64254 "Projections are not allowed on type arguments of functions and properties": Type-project type arguments of properties
• KT-40533 Error message PROPERTY_WITH_NO_TYPE_NO_INITIALIZER for interface property is not fully correct
• KT-20014 Improve diagnostics for lateinit property without initializer and type annotation
• KT-51366 False positive error "Value class cannot extend classes" when extending generic interface with wrong number of type arguments
• KT-68277 K2: false positive UNREACHABLE_CODE for non-local return/break
• KT-69544 K2: Mapped Java @Target annotation's vararg argument has swapped type and elementType
• KT-68998 K2: Refactor postponed atoms
• KT-69288 Native: Apple LLVM 16 fork can't read bitcode with memory attribute produced by upstream LLVM 16
• KT-67808 K2: Inconsistent properties initialization analysis in init blocks in presence of smartcast on this
• KT-69035 K2: Investigate potential removal of FirMangler
• KT-69473 Missing suspend-conversion for lambda in the last statement of when with expected type
• KT-64640 Prevent mutating SequenceCollection methods from JDK 21 be available on read-only collections
• KT-65441 K1: Remove JDK 21 getFirst()/getLast() in (Mutable)List interfaces
• KT-54792 Store program order of properties inside @kotlin.Metadata
• KT-59832 K2: Fix the TODO about merging values for labels in UnusedChecker

Compose compiler

New features

• b/328817808 Added the PausableComposition feature flags
• 83c48a0 Decoy support for JS target is removed from Compose compiler

Fixes

• CMP-6926 iOS compilation failure: Unresolved reference 'copy'
• CMP-6842 FAKE_OVERRIDE declarations are not preserved in metadata and should not be marked with annotations
• CMP-6788 non-private field compilation warnings (stableprop & ComposableSingletons)
• CMP-6685 Native/WASM compilation failure on Composable function with value-type arg + return
• b/376058538 Fix stack overflow when inferring stability of indirect generic loop
• b/339322843 Transform @Composable property delegate references
• b/366040842, b/365066530 Replace deep copy in Compose plugin with in-place type mutation
• b/329477544 Force open / overridden Composable functions to be non-restartable.
• b/361652128 Disable live literal transform if the corresponding flag is disabled
• b/325004814 [Compose] Fix infinite recursion in target analysis
• b/357878245 Disallow open @Composable functions with default params to fix binary compatibility issues.
• b/338597078 [Compose] Fix target warning message
• b/351858979 Fix stability inferencing of interfaces on incremental compilation
• b/346821372 [Compose] Fix code generation for group optimization
• b/339311821 Give warning when stability configuration file is not found
• b/346821372 Fixes group generation for if statements when nonSkippingGroupOptimization is enabled.

IDE. Gradle Integration

• KT-48554 [Multiplatform Import] Ensure consistency between GradleImportProperties and PropertiesProvider

IR. Actualizer

• KT-71631 Kotlin-to-Java direct actualization: java annotation element isn't actualized
• KT-71597 Kotlin-to-Java direct actualization: it is possible to actualize a function with default parameters
• KT-71592 Kotlin-to-Java direct actualization: constructor of nested class can't be actualized
• KT-71577 Kotlin-to-Java direct actualization: method can be actualized by java static method
• KT-69632 K2: Expect actual mismatch on actualization with alias to expect class
• KT-71817 Actualization of static members is broken for non-JVM platforms

IR. Inlining

New Features

• KT-69527 Set the right visibility for synthetic accessors in SyntheticAccessorLowering

Fixes

• KT-71232 Implement an IR validation check that ensures that all IrFields are private on non-JVM backends
• KT-69307 Source offsets seem incorrect after IR inlining
• KT-72884 Internal error in body lowering: IllegalStateException: Can't inline given reference, it should've been lowered
• KT-71659 IR Inliner fails to inline function expressions due to implicit cast from the 1st phase of inlining
• KT-69681 IR: Report warnings on exposure of private types in non-private inline functions
• KT-72521 Kotlin/Native: java.lang.AssertionError: kfun:androidx.compose.runtime#access$<get-androidx_compose_runtime_ProvidedValue$stable>$p$tComposerKt(){}kotlin.Int
• KT-72623 Don't generate synthetic accessors in files other than the one being lowered
• KT-70420 Enable double-inlining in Native & JS backends by default
• KT-67292 Handling assertions before the IR inliner
• KT-70423 KLIB: SyntheticAccessorLowering - generate static factory functions instead of synthetic constructors
• KT-69565 Don't generate synthetic accessors for private symbols inside local classes
• KT-69787 Handle clashes of synthetic accessors generated for top-level callables
• KT-71137 Generate synthetic accessors for backing fields
• KT-67172 Native & JS: Introduce OuterThisInInlineFunctionsSpecialAccessorLowering
• KT-64865 Explicitly generate accessors for private declarations in inline functions
• KT-71657 K/JS: Double-inlining causes failures in IC with top-level synthetic accessors
• KT-71078 Inline all functions in local classes at the 1st stage of inlining
• KT-69802 Don't extract local classes from inline functions in double inlining mode
• KT-66508 IR inliner: Add implicit cast for initializer of temporary variables
• KT-66507 IR inliner: Enable implicit casts in all KLib backends
• KT-69466 IrInlinedFunctionBlock: Refactor it to make it possible to serialize in KLIBs
• KT-69317 IR Inlining. Try to place inlined arguments outside IrInlinedFunctionBlock
• KT-67149 Common Native/JS lowering prefix at the 2nd phase of compilation
• KT-69172 Implement double-inlining for Native
• KT-67304 Keep in common prefix: Shared variables + local classes in inline lambdas
• KT-67170 ArrayConstructorReferenceLowering is missing in Native
• KT-70583 Internal error in body lowering: java.lang.IllegalStateException: An attempt to generate an accessor after all accessors have been already added to their containers
• KT-69700 Inline stub_for_inlining use sites survive after the inliner
• KT-69462 Support dumping IR after inlining in compiler tests
• KT-70693 IR: replace IrReturnableBlock.inlineFucntion with IrInlinedFunctionBlock.inlineFucntion
• KT-70763 IR inline: consider storing stub_for_inline as an inlined function for callable reference
• KT-69168 Wrap assertion calls before IR inliner
• KT-69167 Create intrinsics in stdlib for handling assertions in KLIB-based backends
• KT-69169 Expand assertion intrinsics in backend based on CLI parameters
• KT-69174 Implement the basic Synthetic Accessors Lowering for KLIB-based backends

IR. Interpreter

• KT-70388 K2 IDE / Kotlin Debugger: InterpreterError “Unsupported number of arguments for invocation as builtin function: INT_MAX_POWER_OF_TWO” during evaluation

IR. Tree

Fixes

• KT-69644 Report warning on cross-file IrGetField operations generated by compiler plugins
• KT-68789 Prepare tests for testing visibility (non-)violation in inlined IR
• KT-71826 stdlib fails to compile with -Xserialize-ir=all
• KT-70333 IR: remove ability to apply compiler plugins during KAPT stub generation phase
• KT-67752 Make copyRemappedTypeArgumentsFrom and transformValueArguments methods in DeepCopyIrTreeWithSymbols protected instead of private
• KT-68151 Setup testing visibility of referenced declarations in IR
• KT-68988 [Tests] Streamline the order of irFiles in IR- and Kotlin-like dumps
• KT-65773 Auto generate IR implementation classes
• KT-70330 Automatically keep track of IrValueParameter.index
• KT-68495 Compile-time failure on bounded generic value used in a contains-check with range
• KT-68974 Validate scopes of IrValueParameters in IrValidator

JavaScript

New Features

• KT-70254 K/JS: Generate arrows in ES6 mode instead of anonymous functions
• KT-70283 KJS / ES6: Don't generate bind(this) calls for anonymous functions that capture this

Fixes

• KT-43567 KJS: toString() method and string interpolation of variable produce different code
• KT-70533 KJS: changed string concatenation behavior in 2.0
• KT-14013 JS toString produces different result for nullable/non-nullable ref to the same array
• KT-72732 KJS / ES6: "SyntaxError: 'super' keyword unexpected here" with enabled -Xir-generate-inline-anonymous-functions and disabled arrow functions
• KT-69408 [JS] Enable insertAdditionalImplicitCasts=true (as in other KLIB-based backends)
• KT-71821 K/JS tests are failing with coroutines flow and turbine on timeout
• KT-31799 Allow non-identifier characters in Kotlin/JS (backquoted properties, @JsName)
• KT-55869 Coroutine is not intercepted, when the coroutine is started calling startCoroutineUninterceptedOrReturn using callable reference
• KT-70117 Generate debug info for code from js call
• KT-69642 ES generator-based coroutines rely on eval
• KT-67452 K2: Consider hiding dynamic type creation under FlexibleTypeFactory for JS only
• KT-70226 Delete JS tests that were only run with the legacy JS backend
• KT-71338 K/JS: Add a flag for switching generating arrow functions on & off
• KT-69173 Implement double-inlining for JS
• KT-67327 JS: Remove error tolerance
• KT-69892 Array.isArray() returns false for an instance returned by KtList.asReadonlyArrayView()
• KT-70231 Delete the org.jetbrains.kotlin.cli.js.dce.K2JSDce class
• KT-69928 KJS: keys() and values() of KtMap's JS view don't behave as expected
• KT-70707 KJS: asJsReadonlyMapView does not implement ReadonlyMap correctly
• KT-71220 Fix invalid IrFunctionReference creation in InnerClassConstructorCallsLowering
• KT-70393 Investigate failing JS test after switch stdlib compilation to K2
• KT-64429 K2: Implement KlibJsIrTextTestCaseGenerated for K2
• KT-69587 [Tests] Fix multi-module deserialization in JS irText tests
• KT-70219 Delete the org.jetbrains.kotlin.cli.js.K2JSCompiler class
• KT-70221 Rename org.jetbrains.kotlin.cli.js.K2JsIrCompiler to K2JSCompiler
• KT-70229 Remove test classes related to the legacy JS backend
• KT-70359 Remove legacy backend-related test directives from Kotlin/JS tests
• KT-70362 Clean up Gradle tasks for running JS tests against the legacy JS backend
• KT-66181 Reorganize JsCodeOutliningLowering and keep it before the IR inliner
• KT-30016 JS BE does not generate special bridge methods
• KT-68975 KJS: Investigate calling js(...) from inline functions

KMM Plugin

• KT-71011 AS KMP plugin: ios application can't start for 2024.2.1

Klibs

New Features

• KT-64169 [KLIB Resolve] Don't skip libraries that happen to have the same unique_name
• KT-68322 Compiler (JS, Wasm): warn about incompatible Kotlin stdlib/compiler pair

Fixes

• KT-61098 [KLIB Resolve] Don't allow working with KLIB "repositories"
• KT-72965 Ignore subclassOptInRequired constructor warning
• KT-68792 Bump KLIB ABI version in 2.1
• KT-67474 K2: Missing @ExtensionFunctionType in metadata in KLIBs
• KT-71633 [2.1.0] Suspicious "Argument type mismatch" error
• KT-70146 [KLIB Resolve] Don't fail on nonexistent transitive dependency
• KT-71455 [KLIB Resolve] Forbid passing KLIB unique names via CLI
• KT-67448 [KLIB Resolve] Deprecate passing KLIB unique names via CLI
• KT-67450 [KLIB Resolve] Kotlin/Native: Only one implicit repository should remain for the compiler ("dist")
• KT-70285 Warning about incompatible stdlib (JS/Wasm) is not reported if stdlib is unpacked
• KT-66218 Clean-up the code for serialization & deserialization of DFGs to & from KLIBs
• KT-71414 KotlinLibraryResolver.resolveWithDependencies was evolved in binary incompatible way
• KT-68195 move KlibMetadataProtoBuf to frondend-independent module

Language Design

• KT-54617 Stabilize @SubclassOptInRequired: ability to require opt-in for interface implementation
• KT-54458 Preview of non-local break and continue
• KT-69924 Mention 'if' guard when '&&' is used incorrectly
• KT-71222 Remove @ExperimentalSubclassOptIn from SubclassOptInRequired
• KT-67675 Allow usage of Array<Nothing?>
• KT-70754 Changes in typeOf behaviour for Kotlin/Native
• KT-58659 Prohibit implementing a var property with an inherited val property

Libraries

Performance Improvements

• KT-66715 Performance: faster alternative to String.lines()

Fixes

• KT-71628 Review deprecations in stdlib for 2.1
• KT-69545 Kotlin/Native: Deprecate API marked with FreezingIsDeprecated to error
• KT-56076 K2: build Kotlin standard library
• KT-71660 Stabilize experimental API for 2.1
• KT-54299 Extract org.w3c declarations to separate library from K/Wasm Stdlib
• KT-68027 Document caveats and deincentivise usage of measureTimeMillis
• KT-71581 Update outdated documentation to common lazy and provide samples
• KT-71796 Improve documentation for Path.walk and Path.visitFileTree functions
• KT-68019 Fill in missing package descriptions for standard library documentation
• KT-52181 Native: Inconsistent behaviour of LinkedHashMap#entries on JVM and Native
• KT-71570 Document suspend lambda builder
• KT-65526 Rewrite builtins as expect-actual
• KT-68502 K2: Fix or suppress stdlib K2 warnings
• KT-68731 K2: Handle some formally incompatible expect/actual classes in JVM stdlib
• KT-70378 Implement custom serialization for Uuid
• KT-70005 K/Wasm and K/Native: IntArray.sort - array element access out of bounds
• KT-66764 kotlinx-benchmark: rework on kotlin-compiler-embeddable
• KT-69817 Set up klib binary API validation for stdlib
• KT-68396 Handle some formally incompatible top-level expects/actuals callables
• KT-69524 kotlin.uuid.Uuid: checkHyphenAt - error message always specified index 8
• KT-69327 [native] FloatingPointParser.initialParse works incorrectly for some inputs
• KT-46785 Get rid of !! after readLine() in the standard library

Native

• KT-71435 Native: cannot access class 'objcnames.classes.Protocol'
• KT-49279 Kotlin/Native: update LLVM from 11.1.0 to 16.0.0
• KT-61299 Native: patch LLVM to prevent it from using signal handlers incompatibly with JVM
• KT-69637 Native: our LLVM shouldn't advise submitting bugs to the upstream
• KT-64636 kotlin.incremental.native=true causes IrLinkageError
• KT-69142 ObsoleteWorkersApi and FreezingIsDeprecated is not displayed on targets in webdocs

Native. Build Infrastructure

• KT-71820 Update the coroutines version used in kotlin-native build infrastructure
• KT-69479 Native: remove custom python version building from the LLVM builder container image
• KT-63214 [K/N] llvm build script fails with MacOSX14.0.sdk sysroot

Native. ObjC Export

• KT-62997 IllegalStateException for hashCode(): KClass for Objective-C classes is not supported yet
• KT-59497 KClass.simpleName returns null in ObjC-inherited class

Native. Platform Libraries

• KT-70032 Rebuild platform libraries in 2.1.0 with Xcode 16
• KT-69448 LLVM 16 clang with Xcode 16 headers: 'sys/cdefs.h' file not found

Native. Runtime

• KT-70680 Kotlin/Native: Use WritableTypeInfo when creating Swift wrapper from the runtime
• KT-70568 Native: revert workaround for debug with LLVM 16
• KT-67730 Native: fix runtime compilation warnings after update to LLVM 16

Native. Runtime. Memory

• KT-72624 Native: testRelease_on_unattached_thread sometimes fails with Releasing StableRef with rc 0
• KT-71401 K/N: CMS barrier can be executed on an unregisterred thread
• KT-70364 Kotlin/Native: data race during GC initialization
• KT-68544 [Native] Implement heap dump tool
• KT-70365 Kotlin/Native: make thread id be pointer size

Native. Swift Export

New Features

• KT-71539 Swift Export: export class member overrides
• KT-70442 Swift Export: export class inheritance
• KT-68864 Refactor internal details of swift-export-standalone

Fixes

• KT-70678 Swift Export: generate Kotlin<->Swift type mapping
• KT-70920 Swift Export Nullability: primitive type
• KT-71087 Swift Export: Nullability: Never
• KT-71086 Swift Export: Nullability: Strings
• KT-70919 Swift Export Nullability: reference type
• KT-71026 Swift Export: function overloading with ref types does not work
• KT-70960 Swift Export nullability: add nullability to sir and printer
• KT-70063 Swift export generates invalid Swift code for class and function with the same name
• KT-70069 Swift export: filter out extension properties
• KT-70068 Swift export: nullable types are not marked as unsupported
• KT-69287 Swift Export: support leaking dependencies
• KT-69633 Provide interface for multiple module translation
• KT-69286 [Swift Export][TestInfra] Support translating multiple roots
• KT-69376 Property with Any type does not force addition of import

Reflection

• KT-71378 KotlinReflectionInternalError: Inconsistent number of parameters in the descriptor and Java reflection object

Specification

• KT-53427 Specify @SubclassOptInRequired

Tools. CLI

New Features

• KT-8087 Make it possible to suppress warnings globally in compiler (via command-line option)
• KT-71537 Add JVM target bytecode version 23

Fixes

• KT-70991 K2: Compilation fails if project version has a comma
• KT-70179 K2: Building a file with kotlin-test-junit without junit does not include annotations
• KT-72311 KotlinCliJavaFileManagerImpl caches empty result and broke repeated analyses
• KT-61745 K2: support light tree in multi-module chunk mode
• KT-70885 Errors are not reported for wrong arguments in -Xsuppress-warning flag for non-jvm backends
• KT-69541 K2: "IllegalArgumentException: Unexpected versionNeededToExtract" on using JAR packaged as ZIP64
• KT-69434 K2: Kotlin compiler JarFS can't handle large dependencies (>2GB)
• KT-70959 K2: Support legacy metadata jar format in K2 compiler
• KT-70337 Obsolete code is not removed after refactoring - JvmEnvironmentConfigurator.registerModuleDependencies
• KT-70322 Merge CLITool and CLICompiler classes

Tools. CLI. Native

• KT-68673 Kotlin/Native "You have not specified any compilation arguments. No output has been produced" when no source nor -Xinclude is passed

Tools. Compiler Plugins

Fixes

• KT-72804 Regression in Kotlin 2.1.0: compilation fails when building iOS
• KT-72824 Kotlin power-assert plugin StringIndexOutOfBoundsException
• KT-71658 Transform top-level atomic properties to Java boxed atomics
• KT-65645 Atomicfu-plugin: compilation hangs on a long string concatenation
• KT-69038 Power-Assert does not display const vals
• KT-71525 Setting JvmAbiConfigurationKeys.REMOVE_PRIVATE_CLASSES = true triggers java.util.ConcurrentModificationException
• KT-41888 IrExpression startOffset and endOffset are inconsistent with raw file text
• KT-69856 Compose Plugin: IrType.erasedUpperBound throws NullPointerException when evaluating IrScript nodes due to missing targetClass
• KT-69410 PowerAssert: Cannot find overload of requireNotNull without existing message
• KT-66293 Atomicfu-plugin: wrong return types for lowered extension functions
• KT-69646 PowerAssert: result of array access operator is unaligned
• KT-70112 Power Assert: multiline assertion support
• KT-70504 [atomicfu-plugin] Incremental compilation fails for atomic extensions on JVM
• KT-70351 K2 CodeGen API exception triggered by a compose compiler plugin lowering transformer for data class example
• KT-70113 Power Assert: tab support
• KT-69806 K2: SOE on nested plugin-like annotation in class annotated with itself
• KT-69538 jvm-abi-gen: Remove copy$default if data class constructor is private and ConsistentCopyVisibility is used

Tools. Compiler plugins. Serialization

• KT-70110 Prohibit @Serializable on companion object of another @Serializable class
• KT-69388 Serialization: "You should use ConeClassLookupTagWithFixedSymbol" caused by @Serializable on local generic class

Tools. Daemon

• KT-69929 compileKotlin task reports that daemon has terminated unexpectedly
• KT-72530 The daemon has terminated unexpectedly on startup attempt #​1 with error code: Unknown

Tools. Fleet. ObjC Export

Fixes

• KT-71162 ObjCExport: nullable functional type with reference arguments
• KT-71022 ObjCExport: enum c keywords translation
• KT-71082 ObjCExport: KotlinUnit translated as Function1
• KT-70781 ObjCExport: classifiers and callables type parameters translation
• KT-70943 ObjCExport: extension order
• KT-70840 ObjCExport: duplicated interfaces
• KT-70642 ObjCExport: translate collection type arguments as id
• KT-70546 ObjCExport: method generic parameter is lost and translated as id
• KT-70329 ObjCExport: translation and forward of super generic types
• KT-70263 ObjCExport: generic extension support
• KT-69685 ObjCExport: extension translated as not extension
• KT-70318 ObjCExport: translate companion type
• KT-69252 ObjCExport: Get rid of context receivers from ./native/objcexport-header-generator

Tools. Gradle

New Features

• KT-69940 Expose supplementary compiler warnings via KGP
• KT-71603 Introduce KotlinJvmExtension and KotlinAndroidExtension
• KT-70383 KotlinJvmFactory registerKaptGenerateStubsTask() function should also request compilation task provider
• KT-65125 Provide basic support for Swift Export in Kotlin Gradle Plugin
• KT-71602 Introduce KotlinTopLevelExtension
• KT-69927 Need ability to pass KotlinJvmCompilerOptions to registerKotlinJvmCompileTask()
• KT-71227 [Compose] Add PausableComposition feature flag to the Compose Gradle Plugin
• KT-68345 'composeCompiler#stabilityConfigurationFile' doesn't allow setting multiple stability configuration files

Performance Improvements

• KT-65285 Use uncompressed Klibs

Fixes

• KT-71411 Add FUS statistics for new Dokka tasks
• KT-72495 Warn about kotlin-compiler-embeddable loaded along KGP
• KT-70543 Gradle: create migration guide for those who are using Kotlin compiler classes indirectly available in buildscripts
• KT-69329 Compatibility with Gradle 8.9 release
• KT-71291 Log plugins from the list as Gradle plugins
• KT-69255 Deprecate KotlinCompilationOutput#resourcesDirProvider
• KT-61706 Gradle: remove kotlin-compiler-embeddable from build runtime dependencies
• KT-73128 Apply Kotlinlang template for partial HTMLs
• KT-47897 Official Kotlin Gradle plugin api
• KT-58858 Add KDoc documentation for Kotlin Gradle plugin API
• KT-73076 Kotlin Gradle Plugin API Reference: adjust settings
• KT-72387 KGP 2.1.0-RC-227 changes cause KSP to crash calling produceUnpackedKlib
• KT-53280 Gradle plugin leaks some compiler related extensions into API
• KT-69851 Compatibility with Gradle 8.10 release
• KT-65565 Remove deprecated common platform plugin id
• KT-69719 Bump minimal supported Gradle version to 7.6.3
• KT-69721 Bump minimal supported Android Gradle plugin version to 7.3.1
• KT-66944 Relax host requirements on Kotlin klib compilation
• KT-72651 Unable to use target for KotlinBaseApiPlugin.createKotlin(Jvm/Android)Extension()
• KT-72467 kotlin.sourceSets extension not added for KotlinBaseApiPlugin.createKotlinAndroidExtension()
• KT-72303 KGP 2.1.0-Beta2 broke compatibility with KSP
• KT-68596 Update KGP deprecations before 2.1
• KT-67951 Update Compose extension KDoc
• KT-66049 KGP JVM: Publishing isn't compatible with isolated projects and project dependencies
• KT-71405 Compose compiler gradle plugin: project.layout.file can't be used as a value of the 'stabilityConfigurationFiles' option
• KT-71948 KotlinJvmFactory : get rid of replaces with TODO()
• KT-72092 Gradle: use packed klib variant as the default when no packaging attribute is present
• KT-58956 Offer a shared interface for JVM and Android compilerOptions in Project extension
• KT-70251 Gradle: hide compiler symbols in KGP
• KT-70430 Clean-up obsolete Gradle plugin variants for Gradle versions <7.6
• KT-69853 Compile against Gradle API 8.10
• KT-69852 Run Gradle integration tests against Gradle 8.10 release
• KT-65990 Update GradleDeprecatedOption.level values for arguments removed from the DSL after 2.1
• KT-69331 Run tests against Gradle 8.9 release
• KT-69332 Compile against Gradle 8.9 API
• KT-67174 Cleanup old Test DSL
• KT-71071 BuildFusStatisticsIT.testInvalidFusReportDir test failes on Windows
• KT-69585 KGP / Composite Build: "Could not apply withXml() to generated POM" during publishing
• KT-59769 Many "Unexpected exception happened" warnings during build without internet connection

Tools. Gradle. Cocoapods

• KT-63811 cinterop fails to build klib for iosArm64 target when iOS simulator SDK isn't installed
• KT-70500 Remove useLibraries from CocoaPods plugin
• KT-56947 Replace AFNetworking with a smaller library in tests

Tools. Gradle. JS

• KT-69628 K/Wasm: Node.js version per project
• KT-71578 KotlinJS. Webpack does not recompile on changes with per-file
• KT-71536 [JS, Wasm] Stop collecting information about KLIB IC in Kotlin2JsCompile
• KT-70621 Move kotlin-test-js-runner out of Kotlin repository
• KT-67442 KJS / Gradle: kotlinStorePackageLock fails due to OS-dependent lockfile with npm package manager

Tools. Gradle. Multiplatform

New Features

• KT-70469 Add feature flag for Project Isolation and Kotlin Multiplatform
• KT-70897 Add KotlinBaseApiPlugin.kotlinAndroidExtension

Fixes

• KT-71206 KGP: Test source set may get duplicated KLIBs of different versions
• KT-71209 Drop Hierarchy Template diagnostic about used shortcuts
• KT-69412 Change KotlinTargetAlreadyDeclaredChecker's severity from warning to error
• KT-70060 KGP: handleHierarchicalStructureFlagsMigration doesn't support project isolation
• KT-57280 Expose Kotlin Project Structure metadata via consumable configurations instead of accessing all gradle projects directly
• KT-64999 Support Project Isolation with Kotlin Native tasks (XCode integration, Cocoapods etc)
• KT-64998 Granular Metadata Dependencies Transformation is not compatible with Project Isolation
• KT-70650 GenerateProjectStructureMetadata is not compatible with Project Isolation
• KT-71675 checkSandboxAndWriteProtection collides with Compose's syncComposeResources
• KT-66461 Promote compiler options DSL for multiplatform projects to stable
• KT-69323 Don't pass platform dependencies to metadata compilation
• KT-72454 Revert changes made in KT-69899 i.e. make kotlin.android.buildTypeAttribute.keep = false by default again
• KT-70380 KMM App failed to consume android binary lib
• KT-71423 Xcode archive missing dSYM files since Kotlin 2.0.20
• KT-69899 KMP: Publish BuildType by default for android publications with multiple variants
• KT-71428 Change deprecation message for KMP target shorcuts
• KT-58231 Kotlin Gradle Plugin: set deprecation level to Error for KotlinTarget.useDisambiguationClassifierAsSourceSetNamePrefix and overrideDisambiguationClassifierOnIdeImport
• KT-72068 Distribution for klib cross-compilation is not downloaded during compile tasks
• KT-70612 Report incompatibility warning when Project Isolation enabled and Included builds are used
• KT-71529 Deprecate targetFromPreset API with an error
• KT-69614 Deprecate with error ios/tvos/watchos presets
• KT-69974 KMP: POM dependency rewriter doesn't work with Included Builds OR dependencySubstitution
• KT-69472 Remove IncompatibleAgpVersionTooHighWarning diagnostic
• KT-64996 Commonize Native Distribution task is not compatible with Project Isolation
• KT-62911 Export Kotlin Multipaltform Project Coordinates as a secondary variant of apiMetadataElements
• KT-70888 Project isolation: Project cannot dynamically look up a property in the parent project at PropertiesProvider.propertiesWithPrefix
• KT-70688 Move ExperimentalSwiftExportDsl to another package
• KT-58298 AndroidAndJavaConsumeMppLibIT maintenance: Convert to new infrastructure and add test for newer AGP versions
• KT-68976 K2 IDE: Unresolved FileSystem.SYSTEM from OKIO in shared source sets

Tools. Gradle. Native

• KT-67162 KGP: Kotlin/Native with Isolated Projects: kotlinNativeBundleBuildService cannot be changed any futher
• KT-72366 KGP 2.1.0-Beta2 doesn't download kotlin-native-prebuilt when running Dokka
• KT-45559 CInteropProcess: Changes to header files are not recognized; Task is still UP-TO-DATE
• KT-71051 K/N dependencies are re-downloaded multiple times on Windows
• KT-71398 kotlinNativeBundleConfiguration should not contain dependencies on unsupported platforms
• KT-71722 kotlinNativeBundleConfiguration present in JVM-only Gradle project
• KT-55832 Support passing errors to Xcode when configuration cache is enabled
• KT-70690 not possible to build iOS app with Swift Export and Xcode 16
• KT-65838 Remove project usage from PlatformLibrariesGenerator
• KT-70875 KSP1 native tasks fail on configuration phase

Tools. Incremental Compile

• KT-69123 IC: "NoSuchFieldError: No instance field". Not tracking changes to Android ViewBinding class

Tools. JPS

• KT-68565 K2: IllegalStateException: Source classes should be created separately before referencing
• KT-71042 JAVA_MODULE_DOES_NOT_READ_UNNAMED_MODULE when compiling IntelliJ

Tools. Kapt

• KT-72249 K2 KAPT Not picking up use site annontation like K1 Kapt
• KT-69860 K2 kapt: use compiler directly instead of Analysis API
• KT-71776 K2 Kapt in 2.1.0-Beta1 fails with e: java.lang.IllegalStateException: FIR symbol "class org.jetbrains.kotlin.fir.symbols.impl.FirValueParameterSymbol" is not supported in constant evaluation
• KT-70879 Kapt: check that Kotlin 2.1 language features are ignored correctly by K1 kapt
• KT-71431 K2KAPT fails on modules without any annotation processors
• KT-70600 K2 KAPT: inline reified function has a null signature
• KT-70718 Kapt: "error: could not load module " on error type in data class component
• KT-69861 Kapt: use IR to obtain line information instead of PSI

Tools. REPL

• KT-71109 Kotlin Scripting REPL doesn't support keyboard shortcuts

Tools. Scripts

• KT-68685 K2 / Script: "KotlinReflectionInternalError: Unresolved class:" caused by main.kts script with nested classes and reflection
• KT-68545 Using labeled this access to implicit receivers fails in scripts

Tools. Wasm

• KT-67797 Improve the variable view during debugging in Fleet for Kotlin/Wasm
• KT-71506 [Wasm, IC] FUS report for builds with incremental compilation
• KT-70100 wasmJs Target Fails to Compile on ARM64 Linux
• KT-70367 Update binaryen once we get a release with PR 6793
• KT-67863 K/Wasm: Remove ChromeWasmGc
• KT-71360 K/JS & K/Wasm: Upgrade NPM dependencies
• KT-70297 Wasm: Incorrect kotlinJsTestRunner version set in Multi-Project Builds with mixed kotlin-stdlibs

v2.0.21: Kotlin 2.0.21

Changelog

Apple Ecosystem

• KT-69093 Xcode 16 support in Kotlin

Backend. Native. Debug

• KT-71374 lldb: step out breaks breaking in Xcode 16

Compiler

Fixes

• KT-69735 K2: Static fields are missing from the declaration list of corresponding IrClass for java class
• KT-71122 Regression in Kotlin Compiler 2.0 causing NPE in the runtime
• KT-70931 K2 / Scripts: "cannot convert IrExpression to ConstantValue" when using function annotation
• KT-70584 K2: "IllegalStateException: flow for PostponedLambdaExitNode not initialized - traversing nodes in wrong order?"
• KT-70808 K2: "node has already been visited" with anonymous object in dead code
• KT-69985 K2: Classifier declarations from root package are resolved without imports in non-root packages
• KT-70683 K2: Internal compiler error in IrFakeOverrideSymbolBase.getOwner
• KT-70901 False positive Public-API inline function cannot access non-public-API property accessor
• KT-70930 K2: Java annotations not present on ENUM_ENTRY IR elements
• KT-70194 K2 IDE: exception on a very red file
• KT-69399 Native: IllegalStateException: "Failed to build cache"

Compose compiler

Fixes

• b/329477544 Force open / overridden Composable functions to be non-restartable.
• b/361652128 Disable live literal transform if the corresponding flag is disabled

IR. Actualizer

• KT-70894 IR crash. Unprocessed IrFunctionFakeOverrideSymbol when actualize to Java

IR. Tree

• KT-71191 SymbolTable: Check if the provided signature is public before adding a symbol to the SymbolTable

Native. Build Infrastructure

• KT-71485 K/N runtime parts don't build due to _Float16 issues on x86_64 macOS

Native. C Export

• KT-69507 LLVM 11 clang with Xcode 16 headers: standard c++ headers

Native. C and ObjC Import

• KT-71029 Investigate why stdarg.h declarations leak into testModuleA

Native. Platform Libraries

• KT-70566 LLVM 11 clang with Xcode 16 headers: 'sys/cdefs.h' file not found
• KT-71624 Eliminate remaining UIKit/AppKit removed signatures
• KT-70031 Rebuild platform libraries in 2.0.21 with Xcode 16

Native. Testing

• KT-70603 C++ with -fmodules: cyclic dependency in module 'std': std -> _wctype -> __wctype -> std in dev llvm toolchains

Tools. CLI. Native

• KT-71262 KotlinNativeLink tasks fetching from network despite -Xoverride-konan-properties=dependenciesUrl= being set

Tools. Compiler Plugins

• KT-71038 PowerAssert: Constant on RHS of elvis operator leads to compiler crash

Tools. Daemon

• KT-35381 Get rid of the native-platform usage in kotlin compiler

Tools. Gradle. Multiplatform

• KT-71444 Certain POMs produced by Kotlin 2.0.20 cannot be consumed by KMP projects with Android targets
• KT-70700 Gradle 8.10: The value for task ':commonizeNativeDistribution' property 'kotlinNativeBundleBuildService' cannot be changed any further
• KT-71396 Gradle client side JVM explodes with OOM due to xcodebuild logs

Tools. Gradle. Native

• KT-71419 Light bundle KGP IT run against a stable K/N version

Tools. JPS

• KT-71450 Constant build failure: com.intellij.util.io.ClosedStorageException: storage is already closed

v2.0.20: Kotlin 2.0.20

Changelog

Analysis. API

New Features

• KT-68143 Analysis API: support KtWhenConditionInRange call resolution

Performance Improvements

• KT-67195 K2: do not call redundant resolve on body resolution phase for classes

Fixes

• KT-67360 Analysis API: KtDestructuringDeclarationSymbol#entries shouldn't be KtLocalVariableSymbol
• KT-67748 K2: AllCandidatesResolver modifies the original FirDelegatedConstructorCall
• KT-68198 Analysis API: Support application service registration in plugin XMLs
• KT-62936 Analysis API: NativeForwardDeclarationsSymbolProvider is not supported for Kotlin/Native
• KT-68689 LL API: support analysis from builtins module
• KT-69630 KAPT User project builds with KAPT4 enabled fail with Metaspace overflow
• KT-65417 K2 IDE: KTOR false positive expect-actual matching error on enum class because of implicit clone() in non-JVM source sets
• KT-68882 Analysis API: Refactor KaSymbols
• KT-65413 K2 IDE: KTOR unresolved serializer() call for @Serializable class in common code
• KT-67996 Analysis API: rename Kt prefix to Ka
• KT-67775 Analysis API: expose only interfaces/abstract classes for the user surface
• KT-68009 K2: lowering transformers of Compose compiler plugin access AbstractFir2IrLazyFunction modality, which results in null point exception
• KT-68918 collectCallCandidates works incorrectly for parenthesis invoke
• KT-68462 Analysis API: Integrate project-structure module into analysis-api and analysis-api-platform-interface
• KT-69131 AA: "provideDelegate" operator is not resolved from the delegation reference in FIR implementation
• KT-69055 Analysis API: Stabilize KaScopes
• KT-66216 K2 IDE. "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtProperty, fir is null" on incorrect string template
• KT-68959 Introduce KaSeverity
• KT-53669 Analysis API: redesign KtSymbolOrigin to distinguish kotlin/java source/library declarations
• KT-68846 Mark KaFirReference and all implementations with internal modifier
• KT-68845 Move KaSymbolBasedReference to resolution package
• KT-68844 Move KaTypeProjection to types package
• KT-65849 K2: Rename 'high-level-api' family of JARs to 'analysis-api'
• KT-62540 Remove uses of TypeInfo.fromString and TypeInfo.createTypeText from Kotlin plugin
• KT-62889 K2 IDE. FP MISSING_DEPENDENCY_CLASS on not available type alias with available underlying type
• KT-68155 Analysis API: Add PSI validity check to analyze
• KT-62343 Analysis API: fix binary incopatibility problems cause by KtAnalysisSessionProvider.analyze being inline
• KT-68498 To get reference symbol the one should be KtSymbolBasedReference
• KT-68393 Analysis API: Rename KaClassLikeSymbol. classIdIfNonLocal to classId
• KT-62924 Analysis API: rename KtCallableSymbol.callableIdIfNonLocal -> callableId
• KT-66712 K2 IDE. SOE on settings string template for string variable with the same name
• KT-65892 K2: "We should be able to find a symbol" for findNonLocalFunction
• KT-68273 AA: support KtFirKDocReference#isReferenceToImportAlias
• KT-68272 AA: KtFirReference.isReferenceToImportAlias doesn't work for references on constructor
• KT-66996 Analysis API: Expose the abbreviated type of an expanded KtType
• KT-66646 K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl from FirJsHelpersKt.isExportedObject
• KT-68203 K2: Analysis API: wrong type of receiver value in case of imported object member
• KT-68031 LL resolve crash in case of PCLA inference with local object
• KT-67851 K2: PsiReference#isReferenceTo always returns false for references to Java getters
• KT-68076 AA: use type code fragments for import alias detection
• KT-65915 K2: Analysis API: extract services registration into xml file
• KT-68049 Analysis API: do not expose imported symbols
• KT-68075 K2: Analysis API: Type arguments for delegation constructor to java constructor with type parameters not supported
• KT-65190 AA: reference to the super type is not resolved
• KT-68070 AA: KtExpressionInfoProvider#isUsedAsExpression doesn't work for KtPropertyDelegate
• KT-67743 K2: Stubs & AbbreviatedTypeAttribute
• KT-67706 K2: "KtDotQualifiedExpression is not a subtype of class KtNamedDeclaration" from UnusedChecker
• KT-68021 Analysis API: do not break the diagnostic collection in a case of exception from some collector
• KT-67973 AA FIR: wrong KtCall modeling for == from type bound
• KT-67949 AA: Type arguments of Java methods' calls are not reported as used by KtFirImportOptimizer
• KT-67988 AA: functional type at receiver position should be wrapped in parenthesis
• KT-66536 Analysis API: ContextCollector doesn't provide implicit receivers from FirExpressionResolutionExtension
• KT-67321 AA: Type arguments of Java methods' calls are not resolved
• KT-64158 K2: "KotlinIllegalArgumentExceptionWithAttachments: No fir element was found for KtParameter"
• KT-60344 K2 IDE. "KotlinExceptionWithAttachments: expect createKtCall to succeed for resolvable case with callable symbol" on attempt to assign value to param named getParam
• KT-64599 K2: "expect createKtCall to succeed for resolvable case with callable" for unfinished if statement
• KT-60330 K2 IDE. ".KotlinExceptionWithAttachments: expect createKtCall to succeed for resolvable case with callable symbol" on attempt to assign or compare true with something
• KT-66672 K2 IDE. False positive INVISIBLE_REFERENCE on accessing private subclass as type argument in parent class declaration
• KT-67750 Analysis API: Remove infix modifiers from type equality and subtyping functions
• KT-67655 Analysis API: declare a rule how to deal with parameters in KtLifetimeOwner
• KT-61775 Analysis API: KtKClassAnnotationValue lacks complete type information
• KT-67168 K2: Analysis API: Rendering is broken for JSR-305 enhanced Java types
• KT-66689 Analysis API: KtFirPackageScope shouldn't rely on KotlinDeclarationProvider for binary dependencies in standalone mode
• KT-60483 Analysis API: add isTailrec property to KtFunctionSymbol
• KT-67472 K2: Analysis API FIR: KtFunctionCall misses argument with desugared expressions
• KT-65759 Analysis API: Avoid hard references to LLFirSession in session validity trackers
• KT-60272 K2: Implement active invalidation of KtAnalysisSessions
• KT-66765 K2: Analysis API: support classpath substitution with library dependencies in super type transformer
• KT-67265 K2: status phase should resolve original declarations in the case of classpath subsitution
• KT-67244 K2: StackOverflowError in the case of cyclic type hierarchy and library classpath substitution
• KT-67080 K2: clearer contract for lazyResolveToPhaseWithCallableMembers
• KT-66713 K2 FIR: Expose a way to get the module name used for name mangling
• KT-61892 KtType#asPsiType could provide nullability annotations
• KT-66122 Analysis API: Pass KtTestModule instead of TestModule to tests based on AbstractAnalysisApiBasedTest

Analysis. Light Classes

• KT-65714 K2: IDE K2: "org.jetbrains.kotlin.analysis.api.fir.symbols.pointers.KtFirClassLikeSymbolPointer pointer already disposed"
• KT-65835 SymbolLightClassForClassLike.getName returns null for a companion object instead of Companion
• KT-68261 SLC: Constructors of sealed classes should be private
• KT-68696 Drop DecompiledPsiDeclarationProvider-related stuff
• KT-68404 SLC: wrong binary resolution to declaration with @JvmName
• KT-68275 LC: no arg constructor is not visible in light classes
• KT-66687 Symbol Light Classes: Duplicate field names for classes with companion objects
• KT-66804 Symbol Light Classes: Fields from the parent interface's companion are added to DefaultImpls

Apple Ecosystem

• KT-65542 Cinterop tasks fails if Xcode 15.3 is used

Backend. Native. Debug

• KT-67567 Native: after updating to LLVM 16 lldb hangs when smooth stepping

Backend. Wasm

• KT-70591 To much sources that don't exist inside SourceMap file
• KT-69529 compileProductionExecutableKotlinWasmJs FAILED: No such value argument slot in IrConstructorCallImpl: 1 (total=1)
• KT-68088 Wasm: "UNREACHABLE executed at Precompute.cpp:838" running gradle task wasmJsBrowserDistribution for compose multiplatform on Windows
• KT-65798 K/Wasm: make an error on default export usage
• KT-68828 Wasm test failure. expect-actual. private constructor in expect
• KT-68453 K/Wasm: "Supported JS engine not detected" in Web Worker
• KT-64565 Kotlin/wasm removeEventListener function did not remove the event listener
• KT-65322 [Wasm] Clean-up bootstrap code
• KT-66099 Wasm: local.get of type f64 has to be in the same reference type hierarchy as (ref 686) @​+237036
• KT-63230 [WASM] println(null) prints 'ul'

Compiler

New Features

• KT-58310 Consider non-functional type constraints for type variable which is an expected type for lambda argument
• KT-68969 Consider implementing general "redundant interpolation prefix" warning
• KT-57872 Improve "Public-API inline function cannot access non-public-API" check
• KT-68165 Native: type checks on generic types boundary
• KT-67611 Implement improved handling of $ in literals
• KT-67787 Implement guard conditions for when-with-subject
• KT-39868 Allow access to protected consts and fields from a super companion object
• KT-66169 useContents lacks a contract
• KT-67767 Introduce an ability to enforce explicit return types for public declarations without enabling Explicit API mode
• KT-65841 Allow to actualize expect types in kotlin stdlib to builtins in JVM
• KT-53834 Support for JSpecify @NullUnmarked

Performance Improvements

• KT-69995 K2: Slow compilation when star projecting mutually recursive bounds from java
• KT-69723 K2: code analysis taking too long
• KT-69898 K2: Performance degradation in fir2ir caused by changes around intersection types
• KT-68034 Devirtualization analysis fails to devirtualize string.get

Fixes

• KT-67102 IR Evaluator: NoSuchFieldException when accessing a private delegated property
• KT-35305 "Overload resolution ambiguity" on function for unsigned types (UByte, UShort, UInt, ULong)
• KT-69211 K2: java.lang.IllegalArgumentException: Failed requirement
• KT-68874 Types with different captured types as type arguments are rendered incorrectly
• KT-66086 K/N: Unchecked illegal cast is not thrown
• KT-70186 Kotlin 2.0.20-Beta2: Unexpected number of type arguments: 0
• KT-68889 K2: type variable should not be fixed
• KT-69835 K2 / Native: kotlin.native.binary.gc=cms throws library cached but its dependency isn't error
• KT-70417 DELEGATED_MEMBER_HIDES_SUPERTYPE_OVERRIDE leads to NPE in BE
• KT-69964 K2: Returning from an in-place lambda doesn't compile
• KT-69773 K2: "Overload resolution ambiguity between candidate" with arrays
• KT-60261 K2: No origin is set for composite assignment operators
• KT-15388 Forbid delegated property to have external getter/setter
• KT-70238 K2: false negative VOLATILE_ON_VALUE for constructor properties
• KT-68669 K2: Generate inherited delegated members after actualization
• KT-63828 K2: Missing signature metadata for accessors of properties inherited from delegate
• KT-63871 K2: different value of isNotDefault flag for property inherited from delegate
• KT-67119 Migration warning from context receivers to context parameters
• KT-68997 K2: "No accessor found" for an inline value class when query the value of a delegated class by reflection
• KT-64106 Native: the compiler allows using -opt and -g at the same time
• KT-69766 K2: False negative: Internal setter of generic class is accessible from another module
• KT-68364 JVM: ISE "Bad exception handler end" on a non-local break/continue inside try with finally
• KT-69494 StackOverflowError in CfgTraverserKt.getPreviousCfgNodes
• KT-56880 K2. Conflicting overloads for main() isn't shown when language version is set to 2.0
• KT-69282 K2: equality of unsigned types with nullability works incorrectly
• KT-68492 JVM IR backend: IDE / Kotlin Debugger: AE “Non-reified type parameter under ::class should be rejected by type checker” on evaluating private generic function
• KT-70039 K2: inconsistent stability of vals of captured receivers
• KT-44139 Don't report overload resolution ambiguities if arguments contain an error type
• KT-68996 K2: "Not enough information to infer type argument" caused by typealias annotation with fixed generic argument
• KT-55851 K2: reference to a field from package private class crashes in runtime
• KT-65038 K2: Type alias from indirect dependency causes MISSING_DEPENDENCY_CLASS error
• KT-61875 Native: remove support for bitcode embedding
• KT-67693 Implement checkers for K1 compiler which will check the usage of K2 new features and report that they are not supported in K1 compiler
• KT-68556 K2: false negative PROPERTY_WITH_NO_TYPE_NO_INITIALIZER on uninitialized property without type
• KT-60445 K2/Java: investigate possible symbol clash while enhancing Java class type parameter bounds
• KT-64193 K2: No smartcast with two boolean expressions in a row
• KT-65546 K2. implement extended checker for unused anonymous parameter in lambda
• KT-68358 @EnhancedNullability is missing on value parameter type after inheritance by delegation with strict JSpecify enabled
• KT-67791 False negative "Synchronizing by Meters is forbidden" with inline value classes
• KT-69495 k2: inconsistent output of unsigned number in string templates
• KT-69619 K2. JAVA_TYPE_MISMATCH when Kotlin out generic type used in Java
• KT-69563 trying to call .source on FirPackageFragmentDescriptor results in exception
• KT-69611 Internal annotation FlexibleArrayElementVariance is written to output jar
• KT-69463 K2: false negative SUPER_CALL_WITH_DEFAULT_PARAMETERS with expect/actual declarations
• KT-68724 K2: "ABSTRACT_MEMBER_NOT_IMPLEMENTED" caused by open modifier on interface
• KT-69182 K2: OptIn on enum companion blocks enum constants
• KT-69191 K2: "Unresolved reference" caused by nested data objects
• KT-69569 Wrong paths when one type has multiple annotated arguments
• KT-55128 Wrong type path in type annotations when type arguments are compiled to wildcards
• KT-67692 Native: support LLVM opaque pointers in the compiler
• KT-69402 FirSupertypeResolverVisitor: ConcurrentModificationException
• KT-69062 K1: false-negative "unsupported feature" error on multi-dollar interpolation
• KT-68967 Consider demoting warnings about multi-dollar interpolation to IJ inspections
• KT-68957 False-negative diagnostics about multi-dollar interpolation on string literals without interpolation
• KT-69476 False negative NO_ELSE_IN_WHEN on when over intersection type with expect enum/sealed class
• KT-67069 K2: Delegated member calls interface method instead of fake override
• KT-63864 K2: Missing abbreviated type in metadata
• KT-59833 K2: Stop modifying values of enum entries
• KT-69421 K2: Resolve changed from delegated function to java default function
• KT-69392 K2: "UNSAFE_CALL": when with some variable subjects does not smartcast the variable
• KT-69053 K2: Unsupported intersection overrides for fields
• KT-69227 K2: "Argument type mismatch" caused by generic typealias and upper bound
• KT-31371 NOT_YET_SUPPORTED_IN_INLINE: incorrect error message for local inline function
• KT-49473 PROTECTED_CALL_FROM_PUBLIC_INLINE_ERROR: specialize error message for 'inline' property
• KT-49474 NON_PUBLIC_CALL_FROM_PUBLIC_INLINE: specialize error message for 'inline' property
• KT-49503 SUPER_CALL_FROM_PUBLIC_INLINE_ERROR: specialize error message for 'inline' property
• KT-11302 On inapplicable '@JvmStatic' annotation, highlight only the annotation, not the function signature
• KT-59510 K2: do not render annotations in the deprecation diagnostic
• KT-68532 "This code uses error suppression for 'INAPPLICABLE_JVM_NAME'. While it might compile and work, the compiler behavior is UNSPECIFIED and WON'T BE PRESERVED"
• KT-68859 K2: unable to suppress only "JAVA_MODULE_DOES_NOT_EXPORT_PACKAGE"
• KT-68469 [K2] MISSING_DEPENDENCY_CLASS caused by redundant @file:JvmName
• KT-68999 K2: Unify the style of FIR generator with IR and SIR tree-generators
• KT-66061 Kotlin/Native - building shared module for iOS - Argument list too long
• KT-49420 Suspicious behaviour of frontend in case of DefinitelyNotNull type overload
• KT-59752 K2: "Conflicting overloads" if function with same signature added to different contexts
• KT-68618 K1: Unresolved reference for qualified this in implicit type
• KT-25341 NOT_YET_SUPPORTED_IN_INLINE reported over anonymous object border
• KT-69215 K2: IllegalArgumentException for delegated function in anonymous object with captured type parameters
• KT-69044 Destructuring declaration shouldn't be possible in declaration in when
• KT-69028 K2: FirJvmActualizingBuiltinSymbolProvider returns null on builtins declarations if common source-set is not presented
• KT-15704 Rethink usage of term "type annotation" in error messages
• KT-68970 K2. Argument type mismatch caused by out projection in inferred type from if - else
• KT-68800 K2: Delete ConeAttributes.plus method
• KT-59389 K2: Missing AMBIGUOUS_LABEL
• KT-68803 K2: Smart cast fails with "Unresolved reference" when @Suppress("UNCHECKED_CAST") used in statement
• KT-68968 K2: Missing ILLEGAL_SUSPEND_FUNCTION_CALL diagnostic in initialization code of a local class inside suspend function
• KT-68336 K2 does not seem to pass the right constructor arguments to custom scripts
• KT-68517 "IrSimpleFunctionSymbolImpl is unbound" for actual class containing non-actual functions
• KT-59678 K2: Investigate ConeKotlinType.unCapture()
• KT-69027 K2: Initialize FirStdlibBuiltinSyntheticFunctionInterfaceProvider in library session
• KT-62818 K2: improve VAR_OVERRIDDEN_BY_VAL diagnostic message
• KT-68214 Rename TypeApproximatorConfiguration properties for clarity
• KT-68093 Implement deprecation of smartcasts on class-delegated properties
• KT-67270 Native: report more performance metrics from the compiler
• KT-68621 DATA_CLASS_INVISIBLE_COPY_USAGE false negative for inline fun
• KT-68568 K2: False-positive ACCIDENTAL_OVERRIDE caused by missing dependency class
• KT-66723 K2: NO_ACTUAL_CLASS_MEMBER_FOR_EXPECTED_CLASS for actual typealias that extends to Java class with complicated hierarchy that includes default method
• KT-69000 Can't render constructor of intersection type
• KT-68849 K2: "ClassCastException: cannot be cast to kotlin.jvm.functions.Function2" caused by passing lambda to SAM constructor results
• KT-61744 Native: -Xsave-llvm-ir-after fails to check errors from LLVMPrintModuleToFile
• KT-67103 Support AbbreviatedTypeAttribute for aliased types from the source code
• KT-63921 K2: different representation of recursive type aliases
• KT-68679 K2: "Override has incorrect nullability in its signature compared to the overridden declaration" caused by subclass of Android HashMap
• KT-64335 K2: improve rendering of captured types in diagnostic messages
• KT-68820 K2: "Unresolved reference" on calling function with "contract" name
• KT-67933 K2: no conversion between fun interfaces if target has suspend
• KT-68230 K2: FirMissingDependencyClassChecker: Not supported: ConeFlexibleType
• KT-68531 K2: False-negative error on assignment to enum entry
• KT-68446 K2: compile-time failure on smart-casted generic value used as a when-subject in a contains-check with range
• KT-68678 K2: Drop using FirBuiltinSymbolProvider while compiling JVM stdlib
• KT-68382 Get rid of context receivers in FirScript implementation
• KT-68585 Implement new rules for CFA about enum entries
• KT-68110 K2: "Java type mismatch" caused by spring.Nullable
• KT-68613 K2: False positive CONFLICTING_PROJECTION after fixing KT-67764
• KT-67764 K2: False negative: Projection problem is not reported in is expression
• KT-67887 Expection on assigning to private field of value type
• KT-67801 NSME on evaluating private member function with value class parameter
• KT-67800 NSME on evaluating private top-level function with value class parameter
• KT-68542 K2: Fix referecing to @ExtensionFunctionType if it's declared in source
• KT-68188 K2: Properly support FunctionN creation for stdlib compilation
• KT-67946 K2: Crash on red code: Instead use FirErrorTypeRef for ERROR CLASS: Cannot infer argument for type parameter T
• KT-68526 K2: false-negative inconsistent data class copy visibility warning on call to generic data class copy function
• KT-68528 K2: false-positive inconsistent data class copy visibility warning on call to function from another module with identical value parameter types and return type
• KT-68525 K2: false-negative inconsistent data class copy visibility warning on callable reference to data class copy function
• KT-68617 K2: Secondary constructors in a sealed class have private visibility instead of protected in the generated IR
• KT-63920 K2: Private secondary sealed class constructor is private in metadata, but protected in K1
• KT-57996 Usages of Foo @Nullable []produce only warnings even with-Xtype-enhancement-improvements-strict-mode -Xjspecify-annotations=strict`
• KT-68207 K2: Investigate if losing ConeIntersectionType.upperBoundForApproximation during approximation leads to any issues
• KT-64990 K2: Remove usages of SymbolTable from FIR2IR
• KT-67798 NSME on assigning to private delegated property of value class
• KT-68264 K2: confusing INVISIBLE_* error when typealias is involved
• KT-68529 K2: false-negative redundant annotation warning on @ExposedCopyVisibility on data class with public constructor
• KT-67943 Approximation should not generate types with UPPER_BOUND_VIOLATION errors
• KT-67503 K2: False negative "Type Expected" when attempting to annotate a wildcard type argument
• KT-68187 K2: Create IrBuiltins in fir2ir only after IR actualization
• KT-66443 K2: ArrayIterationHandler doesn't work if UIntArray declared in sources
• KT-68291 K2 / Contracts: Non-existent invocation kind is suggested as a fix
• KT-68209 K2: Strange import suggestion when lambda body contains invalid code
• KT-67368 "NullPointerException: Parameter specified as non-null is null" local lambda creates new not-null checks with 2.0.0-Beta5
• KT-51433 FE 1.0: implement warnings about label resolve changes
• KT-66554 K2. Drop FIR based fake-override generator from fir2ir
• KT-64202 K2: Drop old methods for calculation of overridden symbols for lazy declarations
• KT-67895 K2: Properly implement generation of fake-overrides for fields
• KT-54496 K2: REDUNDANT_MODALITY_MODIFIER diagnostic disregards compiler plugins
• KT-63745 K2: Approximation of DNN with nullability warning attribute leads to attribute incorrectly becoming not-null
• KT-63362 AbstractTypeApproximator fixes only first local type in hierarchy
• KT-67769 K2: "variable must be initialized" on unreachable access in constructor
• KT-51195 FIR IC: Incremental compilation fails with @PublishedApi property
• KT-67966 No JVM type annotation is generated on a class supertype
• KT-46640 Generate JVM type annotations on wildcard bounds
• KT-67952 Annotations on type parameters are not generated for parameters other than the first
• KT-68012 K2. No 'operator' modifier is required on 'component' error in K2
• KT-61835 K2: FirStubTypeTransformer receives unresolved expressions in builder inference session
• KT-63596 K1/K2: Different behavior for lambda with different return type
• KT-67688 K2: False positive CANNOT_INFER_PARAMETER_TYPE for Unit constraint type variable
• KT-62080 False positive UNUSED_VARIABLE for variable that is used in lambda and in further code with several conditions
• KT-60726 K2: Missed TYPE_MISMATCH error: inferred type non-suspend function but suspend function was expected
• KT-41835 [FIR] Green code turns to red in presence of smartcasts and redundant type arguments
• KT-67579 K1/JVM: false-negative annotation-based diagnostics on usages of ABI compiled with non-trivially configured generation of default methods
• KT-67493 K2: argument type mismatch: actual type is 'T', but 'T' was expected
• KT-64900 K2: getConstructorKeyword call in PsiRawFirBuilder.toFirConstructor forces AST load
• KT-67648 K2: wrong exposed visibility errors with WRONG_MODIFIER_CONTAINING_DECLARATION on top-level enum class
• KT-58686 FIR2IR: Don't use global counters
• KT-67592 K2: Success execution of :kotlin-stdlib:compileKotlinMetadata
• KT-60398 K2: consider forbidding FirBasedSymbol rebind
• KT-54918 Refactor transformAnonymousFunctionWithExpectedType
• KT-63360 K2: Malformed type mismatch error with functional type
• KT-67266 K2: disappeared INLINE_CLASS_DEPRECATED
• KT-67569 K2: Fix default value parameters of Enum's constructor if it's declared in source code
• KT-67378 K2: Don't use wrapScopeWithJvmMapped for common source sets
• KT-67738 K2: Introduce kotlin.internal.ActualizeByJvmBuiltinProvider annotation
• KT-64456 K2: Port *VersionRequirementTest to K2
• KT-67136 Put $this parameter to LVT for suspend lambdas
• KT-62538 K2: Declarations inside external classes should be implicitly external
• KT-67627 K2: External interface companion isn't external in IR
• KT-60290 K2: origin is not set for !in operator
• KT-67512 K2: false positive WRONG_GETTER_RETURN_TYPE when getter return type is annotated
• KT-67635 K2: No warning TYPE_MISMATCH_WHEN_FLEXIBILITY_CHANGES for SAM constructor with inferred type
• KT-60501 K2 Scripting: investigate metadata difference between K1 and K2
• KT-67598 K2: Fix incorrect casting UByte to Number in FirToConstantValueTransformer
• KT-56564 False positive "non-exhaustive when" in case of intersection type
• KT-63969 K2: extra property in metadata
• KT-63968 K2: extra property in metadata for anonymous variable in script
• KT-67547 K/N can't build caches, fails with "clang++: error=2, No such file or directory"
• KT-67469 K2: Failing module in FP-intellij
• KT-64033 K2: Investigate ForbidInferringPostponedTypeVariableIntoDeclaredUpperBound
• KT-64457 K2: Fix DecompiledKnmStubConsistencyK2TestGenerated
• KT-66377 IR Evaluator: "no container found for type parameter" when evaluating nested generics
• KT-66378 IR Evaluator: Symbol is unbound
• KT-64506 IDE, IR Evaluator: NPE in ReflectiveAccessLowering.fieldLocationAndReceiver when evaluating private static properties
• KT-67380 K2: Don't check for equals overriding for class Any
• KT-67038 K2: Missing type of FirLiteralExpression causes an exception for property initializer type resolution
• KT-59813 K2: Fix the TODO about firEffect.source in FirReturnsImpliesAnalyzer
• KT-59834 K2: Fix the TODO about merge(other) in UnusedChecker
• KT-59188 K2: Change positioning strategy for WRONG_NUMBER_OF_TYPE_ARGUMENTS error
• KT-59108 K2. SMARTCAST_IMPOSSIBLE instead of UNSAFE_IMPLICIT_INVOKE_CALL
• KT-65503 The inline processor cannot handle objects inside the lambda correctly when calling an inline function from another module
• KT-30696 NoSuchMethodError if nested anonymous objects are used with propagation reified type parameter
• KT-58966 Incorrect type inference for parameters with omitted type of anonymous function that is being analyzed as value of function type with receiver
• KT-67458 Use @PhaseDescription for JVM backend lowering phases
• KT-65647 K2 ignores diagnostics on sourceless FirTypeRefs
• KT-64489 K2: Rename FirAugmentedArraySet
• KT-67394 FIR: Make FIR repr of For from PSI and LightTree the same
• KT-66724 K2 IDE. False positive errors because of wrong type inference in complex case of delegated property and type arguments
• KT-40248 Confusing error message NO_RETURN_IN_FUNCTION_WITH_BLOCK_BODY
• KT-66947 K2: false-positive JSpecify nullability enhancement warning on Java wildcard type argument with same base type but different nullabilities as upper and lower bounds
• KT-66974 K2: false-negative JSpecify nullability enhancement warning on nullable projection of Java wildcard type argument with non-null bounds in out-position
• KT-66946 K2: false-negative JSpecify nullability enhancement warning on Java wildcard type argument with nullable upper bound in out-position
• KT-66442 K2: No visibility error on importing private aliases
• KT-66598 K2: Allow comparisons, is-checks and casts between Kotlin and platform types
• KT-55966 K2: Not enough information to infer type variable K if smartcast is used
• KT-64894 OPT_IN_ARGUMENT_IS_NOT_MARKER diagnostic message is unclear
• KT-67019 K2: IR has incorrect EQ origins for some inplace updating operators
• KT-59810 K2: Support other ConstraintPosition-s
• KT-55383 K1/K2: isClassTypeConstructor behaves differently for stub types
• KT-60089 K2: Introduced ERROR_IN_CONTRACT_DESCRIPTION
• KT-60382 K2: Refactor ExpectActualCollector
• KT-62929 K2: investigate if guessArrayTypeIfNeeded is necessary in annotation loader
• KT-65642 K2: IR: Array access desugaring doesn't have origins
• KT-24807 No smartcast to Boolean in subject of when-expression when subject type is non-nullable
• KT-66057 K2: incorrect supertype leads to class declaration being highlighted red
• KT-63958 K2: drop support of UseBuilderInferenceOnlyIfNeeded=false
• KT-63959 K2: treat stub types as non-nullable for isReceiverNullable check
• KT-65100 IrFakeOverrideBuilder: support custom 'remove(Int)' handling logic in MutableCollection subclasses

Compose compiler

New features

• cdfe659 Changed how compiler features being rolled out are enabled and disabled in compiler plugin CLI. Features, such as strong skipping and non-skipping group optimizations are now enabled through the "featureFlag" option instead of their own option.
• 192e556 Strong skipping is now enabled by default
• 842a9e8 Add support for default parameters in abstract and open @Composable functions b/165812010

Fixes

• e207b05 Fixes group generation for if statements when nonSkippingGroupOptimization is enabled b/346821372
• f64fc3a Fixes endToMarker generation in early return from inline lambdas that caused start/end imbalance b/346808602
• d6ac8a5 Stop memoizing lambdas with captured property delegates b/342557697
• f38d5a3 Stop capturing parameter meta across crossinline boundary b/343801379
• 770fe8d Propagate annotations from inferred function types when serializing b/345261077
• 3c67cda Fix memoization of captureless lambdas when K2 compiler is used b/340582180
• 3281e53 Allow memoizing lambdas in composable inline functions b/340606661
• b/351858979 Fix stability inferencing of interfaces on incremental compilation
• b/346821372 [Compose] Fix code generation for group optimization
• b/357878245 Disallow open @Composable functions with default params to fix binary compatibility issues.

IR. Actualizer

• KT-68830 Compiler crash on missing actual class
• KT-69024 K2: Children of expect annotation with @OptionalExpectation should be actualized
• KT-68742 Allow expect protected to Java protected actualization
• KT-66436 K2. Actualizing modCount property with a field in AbstractMutableList
• KT-68741 Support actualization of AbstractMutableList.modCount
• KT-68801 Crash on access of fake override of function actualized by fake override
• KT-66307 K2: property fake override isn't generated for protected field

IR. Inlining

• KT-67208 KJS: put ReplaceSuspendIntrinsicLowering after IR inliner
• KT-68100 Run IR validation in the beginning and the end of the common prefix
• KT-69171 Introduce a temporary -X CLI parameter that enables double-inlining
• KT-69006 Enable IR visibility checks after IR inlining
• KT-69183 IR inlining: properly handle defaults that depends on previous value parameters
• KT-67660 Suspicious package part FQN calculation in InventNamesForLocalClasses
• KT-68558 Move InlineCallableReferenceToLambdaPhase into ir.inline module
• KT-56466 Support non-local break/continue in IR inliner
• KT-64958 KJS: Put as many as possible lowerings after the inliner
• KT-67297 Implement IR deserializer with unbound symbols

IR. Interpreter

• KT-66938 Internal error in file lowering: java.lang.AssertionError: Error occurred while optimizing an expression: CALL 'public final fun less (arg0: kotlin.Int, arg1: kotlin.Int): kotlin.Boolean declared in kotlin.internal.ir'

IR. Tree

Performance Improvements

• KT-67695 ForLoopsLowering fails to handle a loop over an imprecise typed iterable

Fixes

• KT-68784 Support validating visibility of referenced declarations in IrValidator
• KT-68174 Delete the IrMessageLogger interface
• KT-67082 Introduce attributes on IrElement
• KT-68716 DeepCopyIrTreeWithSymbols.visitConst should remap const type
• KT-67650 Add default implementations to methods for non-leaf IrSymbol subclasses from SymbolRemapper
• KT-67649 Autogenerate IrSymbol interface hierarchy
• KT-44721 IR: merge IrPrivateSymbolBase and IrPublicSymbolBase hierarchies
• KT-67580 Autogenerate SymbolRemapper
• KT-67457 Introduce a way to simplify IR lowering phase creation
• KT-67060 NoSuchMethodError for org.jetbrains.kotlin.ir.expressions.impl.IrCompositeImpl in the Flysto

JavaScript

New Features

• KT-69133 Kotlin/JS: Add support for collection instantiation in JavaScript
• KT-18891 JS: provide a way to declare static members (JsStatic?)

Fixes

• KT-68943 @JsPlainObject breaks when interface has type parameters
• KT-70592 "Error: HttpClientCall expected" on HTTP request when targeting es2015 with KTOR
• KT-67273 Creating Kotlin Collections from JS collections
• KT-65018 JS: Deprecate error tolerance
• KT-67355 KJS / ES6: 'super' in lambda with enabled -Xir-generate-inline-anonymous-functions leads to JS errors
• KT-69353 KJS / d.ts: Kotlin does not export base collection classes along with their mutable collection counterparts
• KT-66898 KJS: Reserved keywords not escaped when -Xir-generate-inline-anonymous-functions is enabled
• KT-69710 JS IR generates bad code for inner param default referring to outer members
• KT-68632 K2: allow JS_NAME_CLASH suppression
• KT-69400 Use correct type for references on local functions when transforming them into lambda
• KT-68554 Legalize marker interface as parent for JSO (interface marked with @JsPlainObject)
• KT-68740 Kotlin/JS 2.0.0 IrLinkageError with dynamic function parameters inside data classes
• KT-68944 @JsPlainObject require properties, when type - nullable alias
• KT-68891 @JsPlainObject fails to compile when encountering reserved keywords as interface properties
• KT-69023 KJS / IR: globalThis is mandatory, breaking older browsers support
• KT-68641 KJS: 'export was not found' with per-file mode on case-insensitive filesystem
• KT-68053 K2: NON_EXPORTABLE_TYPE on a typealias of primitive type
• KT-62304 K/JS: Investigate the compiler assertion crash in JS FIR with backend tests
• KT-68620 [wasm][js] Default param in inner class method fails if we are referring generic extension property
• KT-64801 K2 + JS and WASM: Inner with default inner doesn't work properly
• KT-67248 ModuleDescriptor in JS Linker contains incorrect friend dependecies
• KT-64424 K2: Migrate JsProtoComparisonTestGenerated to K2
• KT-52602 Kotlin/JS + IR: incompatible ABI version is not reported when no declarations are actually used by a Gradle compilation
• KT-66092 K/JS & Wasm: .isReified for reified upper bound is wrongly false
• KT-67112 Unable to apply @JsStatic for common sources: [NO_CONSTRUCTOR]
• KT-62329 KJS: "UnsupportedOperationException: Empty collection can't be reduced" caused by external enum with "@JsExport"
• KT-67018 K/JS: Executable js file for module-kind=umd contains top level this instead of globalThis
• KT-64776 Test infra for JS can't process dependency in mpp module
• KT-65076 Use the same instance when a fun interface doesn't capture or capture only singletons

Klibs

• KT-66557 Check, that no bad metadata in klib is produced, when we failed to compute constant value
• KT-66968 Provide K/N platforms libs for all available targets
• KT-66967 Provide K/N stdlib for all available targets in all distributions
• KT-66605 [KLIB] Excessive creation of BaseKotlinLibrary during resolving libs
• KT-68824 API 4 ABI: Don't show sealed class constructors
• KT-68202 KLIB metadata: nested classes are sometimes inside a different 'knm' chunk
• KT-65834 [KLIB Resolve] Drop library versions in KLIB manifests
• KT-67446 [KLIB Tool] Drop "-repository " CLI parameter
• KT-67445 [KLIB Tool] Drop "install" and "remove" commands

Language Design

• KT-58920 K2: Prioritize Enum.entries resolve
• KT-11914 Confusing data class copy with private constructor
• KT-68636 Incorrect private_to_this visibility for data class with a private constructor

Libraries

New Features

• KT-31880 UUID functionality to fix Java bugs as well as extend it
• KT-57998 implement Base64.withoutPadding

Performance Improvements

• KT-67023 Optimize Int.sign and Long.sign for js and wasmJs targets

Fixes

• KT-70196 Introduce ExperimentalUuidApi annotation for marking Uuid API
• KT-60787 Cannot ignore alpha when formatting with HexFormat
• KT-68025 Improve documentation for Hex
• KT-66129 Minor issues with HexFormat
• KT-67511 provide equals() and hashCode() implementations for kotlinx.metadata.KmType
• KT-68240 stdlib: proper expects for internal API used in intermediate shared source sets
• KT-68840 atomicfu-runtime: annotate some internal functions with @PublishedApi
• KT-68839 Annotate kotlin.js.VOID property with @PublishedApi
• KT-68023 Improve documentation for Base64
• KT-51483 Documentation of trimMargin is (partly) difficult to understand
• KT-64649 Add explanation to "A compileOnly dependency is used in the Kotlin/Native target" warning message
• KT-67807 JS/Wasm: ByteArray.decodeToString incorrectly handles ill-formed 4-byte sequences with a 2nd byte not being continuation byte
• KT-67768 Wasm: ByteArray.decodeToString throws out-of-bounds exception if the last byte is a start of a 4-byte sequence
• KT-66896 Improve Array contentEquals and contentDeepEquals documentation

Native

• KT-70166 Native: EXC_BAD_ACCESS on watchOS when using Dispatchers
• KT-69246 K2: linkPodDebugFrameworkIosArm64 takes 15 (!!) times longer
• KT-67694 Native: WeakRefBenchmark degradation due to nonoptimized IntProgression iteration
• KT-69206 Native: updating to LLVM 16 breaks debugging in lldb on Linux
• KT-68640 Native: updating to LLVM 16 changes behavior of used attribute in C/C++ code
• KT-58097 Kotlin/Native: improve the error message if Xcode is not properly configured
• KT-67583 compileKotlin-task unexpectedly downloads K/N dependencies on Linux (but doesn't on Mac)

Native. Build Infrastructure

• KT-69781 Kotlin/Native performance tests fail to compile with bitcode

Native. C and ObjC Import

• KT-69094 LLVM 11 clang: cinterops fail with "_Float16 is not supported on this target"
• KT-68254 Native: flaky testForwardEnum test in Kotlin/Native on MacOS
• KT-65260 Native: compiler crashes when casting to an Obj-C class companion

Native. ObjC Export

• KT-65666 Native: enable objcExportSuspendFunctionLaunchThreadRestriction=none by default
• KT-57496 linkReleaseFrameworkIosArm64: e: Compilation failed: An operation is not implemented

Native. Platform Libraries

• KT-69382 LLVM 11 clang: symbol not found when running the linker

Native. Runtime

• KT-70043 Native: EXC_BAD_ACCESS on watchOS when using Random
• KT-68928 EXC_BREAKPOINT: BUG IN CLIENT OF LIBPLATFORM: Trying to recursively lock an os_unfair_lock

Native. Runtime. Memory

• KT-66644 Native: threads are too often paused to assist GC (with concurrent mark)
• KT-68871 Native: Unexpected barriers phase during STW: weak-processing
• KT-67779 Native: SpecialRefRegistry::ThradData publication prolongs the pause in CMS
• KT-66918 Native: scan global root set concurrently

Native. Swift Export

• KT-69469 Exporting object twice causing crash
• KT-69251 Get rid of context receivers from ./native/.../lazyWithSessions.kt
• KT-68865 Move config into test-directives
• KT-68259 Swift export: secondary constructs lead to compilation errors
• KT-67095 Native: fix testNativeRefs export test
• KT-67099 Remove SirVisitor and SirTransformer from code
• KT-67003 Abandon PackageInflator implementation in favour of PackageProvider component

Native. Testing

• KT-69235 Incorrect handling of friend dependencies in Native test infra
• KT-67436 Native: support CLI tests
• KT-68416 Native: when using test grouping, a whole group gets ignored on non-Mac hosts if it has Objective-C tests
• KT-68500 Native: Drop custom logic in ExtTestCaseGroupProvider, mute codegen/box tests explicitly

Reflection

• KT-69433 KotlinReflectionInternalError on non-reified type parameter in typeOf inside an inline lambda
• KT-68675 K2: KotlinReflectionInternalError on non-reified type parameter in typeOf inside a lambda

Tools. Build Tools API

• KT-68555 BTA test infra: top level declarations are invisible across modules

Tools. CLI

• KT-69792 Add the possibility to disable fast jar fs in K2
• KT-68838 OutOfMemory when compiling in CLI
• KT-67939 Add CLI argument to enable when guards feature
• KT-68743 Extract common CLI arguments for all KLIB-based backends
• KT-68450 CLI: errors related to module-info are reported even if there are no Kotlin source files
• KT-68060 FastJarFS fails on empty jars

Tools. CLI. Native

• KT-66952 Native: konanc fails when KONAN_HOME is under path with spaces
• KT-64524 Introduce a CLI argument to override native_targets field in klib manifest

Tools. Commonizer

• KT-68835 Command line length overflow on Linux/Windows while invoking commonizer via :commonizeDistribution

Tools. Compiler Plugin API

• KT-68020 K2: run FirSupertypeGenerationExtension over generated declarations

Tools. Compiler Plugins

• KT-64425 K2: Implement Atomicfu*IrTestGenerated for K2
• KT-69401 Kotlin power assert plugin doesn't work correctly with safe cast operator
• KT-69290 PowerAssert: implicit receivers included in power-assert generated diagram
• KT-68511 Power Assert kotlinx.assertEquals message display problem
• KT-68807 Power-Assert crashes the Kotlin compiler when if expression used as assertion parameter
• KT-68162 K2 Parcelize implementation breaks compiler phase contracts
• KT-67605 K2 parcelize: false positive NOTHING_TO_OVERRIDE in one test
• KT-64455 K2: Implement ParcelizeIrBoxTestWithSerializableLikeExtension for K2

Tools. Compiler plugins. Serialization

• KT-70516 KxSerialization: @KeepGeneratedSerializer and sealed class cause initialization error
• KT-68752 Serializable annotation on Java class is not taken into account in K2 checker
• KT-68931 JS/Native + serialization: partial linkage error
• KT-69039 FIR: Implement IDE-only checker for kotlinx.serialization compiler plugin to report IDE-only diagnostics

Tools. Fleet. ObjC Export

• KT-68826 ObjCExport: SerializersModuleBuilder
• KT-68841 ObjCExport: @Deprecated support
• KT-68887 ObjCExport: K1 text fixture @Deprecated support
• KT-68051 [ObjCExport] Support reserved method names

Tools. Gradle

New Features

• KT-68651 Compose: provide a single place in extension to configure all compose flags

Performance Improvements

• KT-61861 Gradle: Kotlin compilations depend on packed artifacts

Fixes

• KT-69809 Compose Gradle Plugin: AGP doesn't override configuration properties like traceMarkersEnabled
• KT-65820 Compatibility with Gradle 8.7 release
• KT-69444 Don't warn about missing Compose Compiler Gradle plugin in some cases
• KT-67888 Remove usages of deprecated Configuration.fileCollection() method
• KT-68843 Gradle: Kotlin plugin changes source set 'main' to 'null/main'
• KT-67395 Add new plugins to collector kotlin gradle performance
• KT-68661 Move ExperimentalWasmDsl to kotlin-gradle-plugin-annotations
• KT-69837 Deprecation warning for file-based IC is issued when the property is set to true, altering the intended meaning of the message
• KT-69291 Compose Gradle plugin: Enable strong skipping by default
• KT-67766 Build against Gradle API 8.7
• KT-67889 Run tests against Gradle 8.8 release
• KT-65271 Gradle: "Mutating dependency DefaultExternalModuleDependency after it has been finalized has been deprecated " with gradle 8.6-rc-3
• KT-67822 Deprecate JVM history files based incremental compilation
• KT-64378 Compatibility with Gradle 8.6 release
• KT-69414 Compose: featureFlags override values of the deprecated compose options
• KT-67771 Compatibility with Gradle 8.8 release
• KT-65528 Migrate rest of Gradle integration tests to new Test DSL
• KT-68306 Project isolation for FUS statistics: Cannot access project ':' from project ':app' at org.jetbrains.kotlin.gradle.report.BuildMetricsService$ Companion.initBuildScanExtensionHolder
• KT-67890 Compile against Gradle 8.8 API artifact
• KT-68773 Kotlin 2.0.0 with Gradle 8.8: ConcurrentModificationException on BuildFusService configurationMetrics
• KT-68308 Project isolation for FUS statistics: An error is thrown at org.gradle.configurationcache.ProblemReportingCrossProjectModelAccess$ProblemReportingProject.getLayout
• KT-61574 Add project-isolation test for Kotlin/Android plugin
• KT-65936 Provide a detailed error for changing kotlin native version dependency.
• KT-62684 PropertiesBuildService should load extraProperties only once
• KT-67288 Test DSL should not fail the test if build scan publishing has failed
• KT-58280 org.jetbrains.kotlin.jvm Gradle plugin contributes build directories to the test compile classpath

Tools. Gradle. JS

• KT-70077 [2.0.20-Beta2] KGP reports confusing warnings about js/wasmJS source sets
• KT-69805 YarnSetupTask does not work for custom downloadBaseUrl
• KT-67444 Gradle / JS: wrong type commonWebpackConfig.devServer.proxy
• KT-42923 KJS: Resources are not available when running Karma tests
• KT-68482 KotlinNpmInstallTask is not compatible with configuration cache
• KT-68072 K/JS, K/Wasm: Module not found in transitive case
• KT-68103 K/JS, K/Wasm: Generation of test compilation's package.json requires main compilation
• KT-67924 K/JS, K/Wasm: kotlinNpmInstall can rewrite root package.json

Tools. Gradle. Kapt

• KT-64627 Kapt3KotlinGradleSubplugin uses property lookup that breaks project isolation
• KT-61928 Clarify parameter types in KaptArguments and KaptJavacOption

Tools. Gradle. Multiplatform

New Features

• KT-56566 Consider pre-generating DSL accessors for source sets with names corresponding to the default target hierarchy

Fixes

• KT-66568 w: KLIB resolver: The same 'unique_name=...' found in more than one library
• KT-65754 Gradle: Commonized cinterop dependency configuration changes project description
• KT-69406 Deprecate combinations of KMP plugin with some Gradle Java plugins
• KT-64109 Using compileOnly/runtimeOnly dependencies in K/N-related configurations leads to odd behaviour
• KT-69311 runDebugExecutable task fails with "this.compilation" is null with enabled configuration cache
• KT-69310 w: KLIB resolver: The same 'unique_name=...' found in more than one library for diamond source set structures
• KT-61793 KMP/AGP compatibility: Update the maximum tested AGP version to 8.3
• KT-66209 Accessing the source sets by name is confusing
• KT-62368 Kotlin 1.9.X fails to detect kotlin.test.Test annotation reference on commonTest source set when targeting JVM+Android
• KT-67110 Usage of BuildOperationExecutor.getCurrentOpeartion internal Gradle API
• KT-58319 kotlin.git: ProjectMetadataProviderImpl "Unexpected source set 'commonMain'"

Tools. Gradle. Native

• KT-69918 java.lang.NullPointerException: Cannot invoke "org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeCompilation.getTarget()" because "this.compilation" is null
• KT-67935 OverriddenKotlinNativeHomeChecker does not work well with relative paths
• KT-64430 Remove deprecated KotlinToolRunner(project) constructor
• KT-64427 Stop using deprecated KotlinToolRunner(project) constructor call

Tools. Incremental Compile

• KT-69042 K2: changing a Java constant won't cause Kotlin usages to recompile
• KT-63476 Investigate the debug output of JVM compilation in KMP IC smoke tests

Tools. JPS

• KT-63707 JPS: "Multiple values are not allowed for" caused by Compose

Tools. Kapt

• KT-68145 K2 KAPT: missing $annotations methods for const properties and private properties without accessors
• KT-67495 File leak in when building with kapt
• KT-66780 K2 KAPT Kotlinc should exit with an exit code 1 (compilation error) if a Kapt task fails
• KT-66998 K2 KAPT: Reimplement support for DefaultImpls

Tools. Scripts

• KT-69296 scripting dependency resolution does not authenticate towards maven mirrors
• KT-67575 FromConfigurationsBase script definition unexpected behaviour with regex from gradle templates
• KT-67066 DeepCopyIrTreeWithSymbols does not copy IrScript nodes correctly
• KT-67071 K2: ScriptCompilationConfigurationFromDefinition is not serializable
• KT-67063 LauncherReplTest flaky on Windows

Tools. Wasm

• KT-70220 K/Wasm: Upgrade NPM dependencies
• KT-69245 K/Wasm: Remove warning of working-in-progress
• KT-69154 K/Wasm: wasmJsBrowserProductionRun flaky crash with "WebAssembly.instantiate(): Import ... function import requires a callable"
• KT-68930 K/Wasm: Production run doesn not use optimize task result
• KT-67901 K/Wasm: Add kotlin-wasm-examples to CI
• KT-67468 Gradle task build (allTests) fails on default web project
• KT-67980 Wasm: Incorrect "Please choose a JavaScript environment to build distributions and run tests" when WASM is not configured
• KT-67862 K/Wasm: Make usage of ChromeWasmGc an error

v2.0.10: Kotlin 2.0.10

2.0.10

Apple Ecosystem

• KT-68257 Xcode incorrectly reuses embedAndSign framework when moving to and from 2.0.0

Compiler

Fixes

• KT-69876 K2 Compile exception: Only IrBlockBody together with kotlinx serialization
• KT-68521 K2: Property's private setters can be bypassed when using plusAssign and minusAssign operators
• KT-68667 K2: Compiler hangs on mapNotNull and elvis inside lambda
• KT-68747 K2: Long compilation time because of constraint solving when using typealias in different modules
• KT-68940 K2: "IllegalArgumentException: All variables should be fixed to something"
• KT-68797 K2 / Native: "java.lang.IllegalStateException: FIELD" caused by enabled caching
• KT-68362 False-positive ABSTRACT_MEMBER_NOT_IMPLEMENTED for inheritor of java class which directly implements java.util.Map
• KT-68449 K2: "when" expression returns Unit
• KT-67072 K2: inconsistent stability of open vals on receivers of final type
• KT-68570 K2: "Unresolved reference" in call with lambda argument and nested lambda argument
• KT-69159 K2: KotlinNothingValueException in Exposed
• KT-68623 K2: "Only safe or null-asserted calls are allowed" on safe call
• KT-68193 JDK 21: new MutableList.addFirst/addLast methods allow adding nullable value for non-null types
• KT-67804 removeFirst and removeLast return type with Java 21
• KT-68727 K2: "Null argument in ExpressionCodegen for parameter VALUE_PARAMETER" caused by an enum class with default parameter in a different module
• KT-68383 K2: "Argument type mismatch: actual type is 'kotlin.String', but 'T & Any' was expected." with intersection types
• KT-68546 K2: false-positive conflicting overloads error on inheriting generic type with inherited generic and non-generic member overloads
• KT-68626 K2: "Conflicting Overloads" for function if inherited from generic type
• KT-68351 K2: "Suspension functions can only be called within coroutine body"
• KT-68489 K2: WRONG_ANNOTATION_TARGET with Java and Kotlin @Target annotation positions
• KT-69058 K2: Java-defined property annotations not persisted
• KT-64515 K2 IDE: [NEW_INFERENCE_ERROR] in a build.gradle.kts script while applying "jvm-test-suite" plugin and then configuring targets for test suites
• KT-68016 K2: Gradle repo test should compile correctly with Kotlin explicit api mode fails on K2
• KT-68575 K2: @ParameterName annotation is not erased when inferring the type of it in lambdas
• KT-67999 K2: lost flexibility on parameters of Java SAM
• KT-59679 K2: Investigate extracting uncompleted candidates from blocks
• KT-68401 K2: "IllegalAccessError: failed to access class" caused by package private super Java type, when inferencing a common super type of if or when branches on JVM
• KT-68806 K/Wasm RuntimeError: unreachable on Sequence::toList
• KT-68455 K2: False negative UPPER_BOUND_VIOLATED_BASED_ON_JAVA_ANNOTATIONS
• KT-68538 KJS/K2: using while with break inside inline lambdas leads to an endless cycle
• KT-68798 JVM compiler crashes on calling private expect constructor with a default parameter
• KT-68734 K2: enum class in KMP: Expect declaration MMKVLogLevel is incompatible with actual MMKVLogLevel because modality is different
• KT-68674 False positive ACTUAL_WITHOUT_EXPECT in K2
• KT-68350 K2: "Inapplicable candidate(s)" caused by parameter reference of local class with type parameters from function
• KT-68571 K2: "IllegalStateException: Fake override should have at least one overridden descriptor" caused by exceptions and when statement
• KT-68523 K2: FileAnalysisException when using Definitely non-nullable types
• KT-68339 K2: "Enum entry * is uninitialized here" caused by lazy property with enum in when expression
• KT-66688 K2: false-negative "upper bound violated" error in extension receiver
• KT-68630 DiagnosticsSuppressor is not invoked with Kotlin 2.0
• KT-68222 K2. KMP. False negative Expected declaration must not have a body for expected top-level property with getter/setter
• KT-64103 FirExpectActualDeclarationChecker reports diagnostic error for KtPsiSimpleDiagnostic with KtFakeSourceElement
• KT-68191 K2. Static fake-overrides are not generated for kotlin Fir2IrLazyClass
• KT-68024 K2: Gradle repo test accessors to kotlin internal task types... fails on K2
• KT-64957 K1: drop ModuleAnnotationResolver

Compose compiler

• 0c5a858 Fix memoization of captureless lambdas when K2 compiler is used b/340582180
• a8249d6 Allow memoizing lambdas in composable inline functions b/340606661

Native

• KT-68094 K2/Native: Member inherits different '@Throws' when inheriting from generic type

Tools. Compiler Plugins

• KT-69187 Compose compiler for web doesn't support rememberComposableLambda
• KT-68557 K2. Supertypes resolution of KJK hierarchy fails in presence of allopen plugin

Tools. Compiler plugins. Serialization

• KT-68850 Compose lambda type not transformed with KGP 2 + new Compose plugin

Tools. Daemon

• KT-68297 KGP 2.0 regression: JAVA_TOOL_OPTIONS is not considered in Kotlin daemon creation

Tools. Gradle

• KT-69330 KotlinCompile friendPathsSet property is racy due causing build cache invalidation
• KT-69026 Mark AGP 8.5.0 as compatible with KGP
• KT-68447 ill-added intentionally-broken dependency source configurations
• KT-69078 Gradle: Add option to disable FUS Service
• KT-68278 Spring resource loading in combination with java-test-fixtures plugin broken
• KT-66452 Gradle produces false positive configuration cache problem for Project usage at execution time
• KT-68242 Run tests against AGP 8.4.0

Tools. Gradle. Multiplatform

• KT-68805 KMP project (re-)import took a long time for downloading platform libs
• KT-68248 kotlin multiplatform project fail to build on Fedora with corretto

Tools. Gradle. Native

• KT-68638 KGP 2.0 breaks native test with api dependencies and configuration cache
• KT-65761 Missing JDK Platform ClassLoader when compiling Kotlin native in daemon

Tools. JPS

• KT-69204 Generate lookups in dumb mode for compatibility with ref index

Tools. Kapt

• KT-68171 K2KAPT: boxed return types in overridden methods changed to primitives

Tools. Scripts

• KT-68681 K2 / CLI / Script: "NullPointerException: getService(...) must not be null" caused by @DependsOn
• KT-67747 K2: regression in Spring unit tests using javax.script.ScriptEngine

v2.0.0: Kotlin 2.0.0

Changelog

Analysis. API

New Features

• KT-65327 Support reading klib contents in Analysis API

Performance Improvements

• KT-65560 K2: Anaysis API: ContextCollector triggers redundant resolution in the case of file elements
• KT-64987 Analysis API: 50GB memory allocation on creating empty kotlinx.collections.immutable.persistentMapOf
• KT-61789 K2: optimize getFirForNonKtFileElement for references inside super type reference
• KT-59498 K2: getOnAirGetTowerContextProvider took too much time due to on air resolve
• KT-61728 Analysis API: optimize AllCandidatesResolver.getAllCandidates

Fixes

• KT-65561 Analysis API: dummy.kt is not a physical file
• KT-65616 K2: FirDeclarationStatusImpl cannot be cast to FirResolvedDeclarationStatus from STATUS
• KT-65600 Analysis Api: FirFile for KtCodeFragments are created and not updated on changes
• KT-64919 K2 IDE: Implement KMP support for sealed class inheritors
• KT-64241 K2: Unresolved calls to functions in scripts depending on included projects
• KT-65813 Analysis API Standalone: FirDeclarationForCompiledElementSearcher does not find compiled elements
• KT-66052 AA: render expect/actual modifier
• KT-66795 KtCodeFragment.clone() is broken
• KT-66532 K2 CodeGen AA: missing annotation setup for function in source module but not in a compile target file
• KT-64833 Analysis API: Members implemented by delegation have no overridden symbols
• KT-62405 Analysis API: Symbols SUBSTITUTION_OVERRIDE have no overridden symbols
• KT-66749 K2: "Collection contains no element matching the predicate" on an unresolved call
• KT-62832 K2: ClassCastException: FirDeclarationStatusImpl cannot be cast to FirResolvedDeclarationStatus
• KT-66719 AbstractGetKlibSourceFileNameTest: The dependency to ":native:analysis-api-klib-reader" breaks JPS compilation
• KT-66603 Analysis API: support type annotations in KtPsiTypeProviderMixIn#asPsiType
• KT-64505 Analysis API Standalone: Remove test-specific calculation of sealed class inheritors
• KT-66013 Analysis API Standalone: Sealed inheritors aren't correctly calculated for source classes
• KT-62880 K2 IDE: Unresolved java annotation methods in KDoc
• KT-66530 K2: Analysis API: KtPsiTypeProvider#asKtType crashes on PsiClassType for Java type parameter with wrong use site
• KT-65571 Support VirtualFile inputs to Analysis API modules
• KT-66485 Substituted types are not provided for callable references
• KT-66498 Analysis API: 'KtFe10SymbolDeclarationOverridesProvider' considers a class to be a subclass of itself
• KT-64579 K2 IDE: "Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirValueParameterImpl(Source) but FirArgumentListImpl found"
• KT-65978 Analysis API: Use soft references in FileStructureCache
• KT-64051 K2 IDE: Analysis API: Unresolved links to typealias in KDoc
• KT-66189 K2 / IDE: KtFirExpressionTypeProvider bugs
• KT-61422 K2 IDE: "No array element type for vararg value parameter: org.jetbrains.kotlin.fir.declarations.impl.FirValueParameterImpl"
• KT-66276 K2: Analysis API: TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM false positive for script parameter
• KT-66232 K2: Analysis API: cover ScriptWithCustomDefDiagnosticsTestBaseGenerated by LL FIR tests
• KT-60996 K2: Stub Based Deserializer: Set versionRequirements to enable VERSION_REQUIREMENT_DEPRECATION diagnostics
• KT-66306 K2: Analysis API: drop ability to enable global phase resolve lock
• KT-55750 LL FIR: Implement multi-threaded resolve
• KT-65563 Analysis API: Missing session component FirExpectActualMatchingContextFactory in LLFirLibrarySession
• KT-66173 K2: No 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter' in array owner: LLFirLibrarySession
• KT-66238 Gradle kotlin build scripts - a lot of unresolved symbols after latest changes in kotlin master
• KT-65099 K2: Recursive local storage cache check for Fir2IrDeclarationStorage::createAndCacheIrPropertySymbols()
• KT-65265 Analysis API: Add library session invalidation tests
• KT-56288 Analysis API: Add tests for session invalidation on the Analysis API side
• KT-64000 K2: make AnnotationArgumentsStateKeepers more accurate
• KT-63606 K2: Analysis API: rewrite FirLazyAnnotationTransformer to avoid redundant transformations
• KT-65191 KtFirMultiplatformInfoProvider#getExpectForActual doesn't return expect function for slightly broken code
• KT-62136 Analysis API: Add concurrent tests for CleanableSoftValueCache
• KT-61222 K2: Add lifecycle management for KtResolveExtension
• KT-65960 Analysis API: Test infrastructure indexes binary libraries from decompiled files instead of stubs during IDE mode tests
• KT-65240 K2: CodeGen API fails to resolve Annotation parameter type when it runs FIR2IR for a class with a parent class from other module if the parent class has an annotation from another module
• KT-65344 K2: make FirScript statements (declarations) independent
• KT-65930 AA: receiver type for Int?::foo misses nullability
• KT-65914 AA: receiver type for this::foo returns return type of the target callable
• KT-62071 Analysis API: KtFirScopeProvider.getScopeContextForPosition throws exception when ImplicitReceiverValue.implicitScope is null
• KT-65780 K2: polish FileStructure implementation for FirFile
• KT-62840 K2 Script: everything around destructuring declaration on top level of scripts are broken
• KT-64528 K2 IDE: MPP: unregistered component 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter'
• KT-64921 K2 IDE: references in platform code resolve to expect classifier instead of actual
• KT-61296 K2: do not resolve the entire file on lazyResolve call if FirFile is passed
• KT-65683 Analysis API: Dangling file session creation causes a computeIfAbsent contract violation
• KT-64884 K2 IDE. FP [NAMED_PARAMETER_NOT_FOUND] for copy method of library data class when class has not parameter-properties
• KT-65763 K2: value parameter from library data class copy have RAW_FIR phase
• KT-65665 Analysis API: support KtDelegatedSuperTypeEntry in KtFirExpressionInfoProvider.isUsedAsExpression
• KT-62899 K2 IDE. IDE ignores @Suppress annotation for errors
• KT-65655 Analysis API: KtCodeCompilationException should not strongly reference FIR sessions
• KT-62302 Support PsiType -> KtType conversion
• KT-64604 K2: IDE K2: "Modules are inconsistent during performance tests"
• KT-65345 K2: unify FirDesignation and LLFirResolveTarget
• KT-61757 K2 IDE: resolution to buitlins does not work for from common module
• KT-65268 K2: Checking the presence of the delegated constructor call forces AST loading
• KT-63330 Analysis API: Stub-based deserialized symbol providers provide unresolved enum entry annotation arguments
• KT-65418 Analysis API: LLFirAbstractSessionFactory loads anchor module sessions eagerly
• KT-64718 Analysis API: do not expose SealedClassInheritorsProvider and FirRegularClass to IDE Plugin
• KT-65075 K2: getContainingDeclaration() is broken for declarations inside code fragments
• KT-61332 Support KtTypeCodeFragment in PsiRawFirBuilder
• KT-65150 AA: incorrect result from KtTypeProvider#getReceiverTypeForDoubleColonExpression for Java static method
• KT-56551 LL FIR: implement parallel resolve for jumping phases
• KT-65223 Psi: avoid KtFile usages
• KT-65307 Analysis API FE10: support KtFe10AnalysisSessionProvider.getAnalysisSessionByUseSiteKtModule
• KT-62695 K2 IDE: Unresolved extension functions in KDoc
• KT-65152 Analysis API: KDoc references to packages are not fully resolved
• KT-64988 K2 IDE: Navigation from the named argument in safe call does not work
• KT-63195 AA: incorrect results from KtTypeProvider#getReceiverTypeForDoubleColonExpression
• KT-64074 K2: Investigate LL divergence for Script.testTopLevelPropertyInitialization
• KT-62441 K2: IDE K2: "No dangling modifier found"
• KT-62895 K2 IDE. FP 'when' expression must be exhaustive with sealed interface from library
• KT-64993 Analysis API: KtExpressionTypeProvider.getExpectedType works incorrectly for arguments of safe calls
• KT-64883 Allow direct creation of KtCommonFile
• KT-64646 K2: properly forbid ast loading during raw fir phase in tests
• KT-64862 Psi: missed parenthesis in type reference presentation
• KT-62893 K2 IDE. FP 'when' expression must be exhaustive with Java sealed interface from library
• KT-63795 K2: lazyResolveToPhase(BODY_RESOLVE) cannot be called from a transformer with a phase BODY_RESOLVE from SealedClassInheritorsProviderIdeImpl
• KT-64805 Analysis API: introduce common entry point for multi-file test cases
• KT-64714 K2: Analysis API: CollectionsKt.map doesn't resolves from Java in kotlin repo
• KT-64647 K2: Allow to calculate decompiled inheritors for sealed classes in tests
• KT-64595 AA: stackoverflow while simplifying a type with a recursive type parameter
• KT-64825 Analysis API. Cannot compute containing PSI for unknown source kind 'org.jetbrains.kotlin.KtFakeSourceElementKind$DefaultAccessor' exception on getContainingSymbol call for default setter parameter
• KT-64080 K2: Analysis API: On-air resolve does not trigger resolution of delegated super call arguments
• KT-64243 K2: proper lazy resolution for fake overrides
• KT-62891 K2 IDE. FP [EXPOSED_FUNCTION_RETURN_TYPE] on overriding library method which returns protected type
• KT-62667 K2: Cannot find enclosing declaration for KtNameReferenceExpression (on-air, imports)
• KT-61890 Analysis API: Migrate KtFirScopeProvider to ContextCollector instead of onAirResolve
• KT-64197 K2: Code fragments are only supported in JVM
• KT-62357 K2 IDE. False positive on generated component methods and false negative on getter of @JvmRecord classes in Java
• KT-62892 K2 IDE. Java outer class from other module is not resolved when nested class is accessed with fq name in a type position
• KT-62888 K2 IDE. IDE infers reference to KMutableProperty as reference to just KProperty
• KT-64584 K2: StubBasedFirDeserializedSymbolProvider: support deserialization of delegated declarations
• KT-60324 K2 IDE: "NoSuchElementException: List is empty at JavaOverrideChecker#buildErasure"
• KT-62896 K2 IDE. FP ABSTRACT_MEMBER_NOT_IMPLEMENTED on inheriting class from library which implements interface by delegation
• KT-62947 Analysis API: Error while resolving FirPropertyImpl
• KT-64468 Analysis API: Implement mixed multi-module tests which support different kinds of KtModules
• KT-56541 Symbol Light Classes: No @NotNull annotations are generated for accessors of lateinit properties of unresolved types
• KT-63547 K2 IDE. False Positive AMBIGUOUS_ANNOTATION_ARGUMENT
• KT-64205 Analysis API: Do not import non-top-level callables by default
• KT-63056 K2: Cannot mutate an immutable ImplicitReceiverValue on FirCodeFragment analysis
• KT-64108 K2: KtFirSymbolDeclarationOverridesProvider shouldn't provide fake overrides
• KT-63752 K2: java.lang.StackOverflowError FirFieldSymbol.getHasInitializer
• KT-63718 Analysis API: Stub-based dependency symbol providers of library source sessions compute the wrong package name sets
• KT-64225 K2: IDE K2: "FirLazyBlock should be calculated before accessing" in evaluate debuger completion
• KT-64186 Analysis API: ContextCollector provides incorrect scopes for anonymous objects
• KT-63979 K2 IDE: presentation of types in completion is too verbose
• KT-63681 K2: LL FIR: Improve isResolved check coverage of after lazy resolution
• KT-62982 K2: Cannot get a PSI element for 'Enum.values'
• KT-59732 FirLazyResolveContractViolationException: lazyResolveToPhase(IMPORTS) cannot be called from a transformer with a phase IMPORTS from serialisation plugin
• KT-62676 K2 IDE: Reference shortener does not recoginize redundant this references
• KT-63627 K2 IDE: shorten reference shortens required qualifier
• KT-62675 K2 IDE: Reference shortener does not recoginize redundant labels
• KT-60957 K2: Analysis API: Reference shortener does not work correctly with invoke function calls on properties
• KT-63771 fe10: KtNamedClassOrObjectSymbol#isInline does not cover value classes
• KT-60327 K2 IDE. "IllegalArgumentException: source must not be null" during delegation declaration
• KT-62421 K2: IDE K2: "lazyResolveToPhase(BODY_RESOLVE) cannot be called from a transformer with a phase BODY_RESOLVE."
• KT-62587 K2 IDE. FP unresolved reference on accessing nested class in annotation argument
• KT-63700 K2: "FirLazyExpression should be calculated before accessing" in the case of secondary constructor
• KT-61383 K2: 'KtCompilerFacility' fails on code fragment compilation in library sources with duplicated dependencies
• KT-62111 K2 IDE. IllegalArgumentException on for loop with iterator declaration attempt
• KT-63538 Analysis API: Removing a contract statement via PsiElement.delete() does not trigger an out-of-block modification
• KT-63694 K1/K2 IDE. "RuntimeException: Broken stub format, most likely version of kotlin.FILE (kotlin.FILE) was not updated after serialization changes" exception on incorrect class name
• KT-63660 K2: expect-actual gutter icons must be shown when declarations are matched but incompatible
• KT-63560 Analysis API: Modifiable PSI tests cannot rely on the cached application environment to allow write access
• KT-62980 Implement KtFirSimpleNameReference#getImportAlias
• KT-63130 Analysis API: No receiver found for broken code during commit document
• KT-62705 K2: "lazyResolveToPhase(IMPORTS) cannot be called..." from light classes
• KT-60170 K2 IDE: CCE from KtFirCallResolver on invalid code with wrong implicit invoke
• KT-61783 K2: Analyze 'KtCodeFragment' in a separate session
• KT-62010 K2: IDE K2: "ConeClassLikeTypeImpl is not resolved to symbol for on-error type"
• KT-62957 Analysis API: NullPointerException on call resolution when builtins are not available
• KT-61252 K2: IDE K2: "By now the annotations argument mapping should have been resolved"
• KT-62935 Analysis API: kotlin.Cloneable should not be available in Kotlin/Native sources
• KT-62910 Analysis API: create AbstractFirPsiNativeDiagnosticsTest for LL FIR
• KT-63096 K2: Analysis API: KotlinAnnotationsResolver for IDE is created with incorrect scope
• KT-62310 K2 IDE. False positives errors with external annotations
• KT-63282 K2 Script: annotation arguments phase should resolve propagated annotations
• KT-62397 K2 IDE. FP Error in the editor on RequiresOptIn annotation from the lib despite the warning level
• KT-63223 Analysis API: reference to declarations with kotlin* package are not resolved
• KT-62626 IllegalStateException: Cannot build symbol for class org.jetbrains.kotlin.psi.KtScriptInitializer
• KT-62693 K2: IDE K2: "PSI should present for declaration built by Kotlin code"
• KT-62674 K2: "Scope for type ConeClassLikeTypeImpl" is null from transitive dependencies
• KT-61889 Analysis API: Migrate KtFirReferenceShortener to ContextCollector instead of FirResolveContextCollector
• KT-62772 Analysis API: No 'org.jetbrains.kotlin.fir.java.FirSyntheticPropertiesStorage'(31) in array owner: LLFirSourcesSession when analysing builtins in a context of common code
• KT-60319 K2 IDE: "Stability for initialized variable always should be computable"
• KT-62859 K2 IDE: "Evaluate expression" throws exception when calling "Any?.toString()"
• KT-63058 K2 IDE: Code completion unexpectedly imports static/companion object method
• KT-62588 getExpectedType should not calculate type of the expression
• KT-61990 K2: Unexpected returnTypeRef for FirSyntheticProperty
• KT-62625 K2: 'FirLazyExpression should be calculated before accessing' for unresolved super type
• KT-62691 K2: optimize getFirForNonKtFileElement for references inside 'where'
• KT-62834 K2: missing file node level in control flow builder
• KT-62768 Analysis API: No 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter'(44) in array owner: LLFirSourcesSession exception on analysing common code
• KT-62874 K2: FirLazyExpression should be calculated before accessing
• KT-62407 Analysis API: resolve [this] in KDoc to extension receiver
• KT-61204 K2: "FirLazyExpression should be calculated before accessing in ktor HttpBinApplication"
• KT-61901 Analysis API: Declared member scopes for Java classes are missing static members
• KT-61800 Analysis API: Provide separate declared member scopes for non-static and static callables
• KT-61255 Analysis API: Get rid of valueOf, values and entries from a declared member scope
• KT-62466 Expected type for functional expression should include inferred types
• KT-61203 IDE K2: "Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirRegularClassImpl(Source) but FirArgumentListImpl found"
• KT-61791 Analysis API: Implement combined getPackage for combined Kotlin symbol providers
• KT-62437 K2 IDE. Resolution does not work inside lambda expression in constructor argument in supertypes
• KT-62244 K2: Analysis API Standalone: Resolving klib dependencies from binary roots terminates application
• KT-62897 K2 IDE. Unresolved declarations from libraries which are doubled in intellij project libraries
• KT-61615 K2: No 'org.jetbrains.kotlin.fir.analysis.js.checkers.FirJsModuleKind' in array owner: LLFirSourcesSession
• KT-59334 K2: LLFirImplicitTypesLazyResolver problems
• KT-62038 K2: Nested classes are missing in symbol light class structure tests for libraries
• KT-61788 Analysis API: Symbol for FirAnonymousInitializer cannot be null
• KT-62139 Analysis API: KtFe10AnalysisSession.createContextDependentCopy does not need validity check
• KT-62090 Analysis API: introduce an API to get a substitution formed by class inheritance
• KT-62268 K2 IDE. No autocompletion and IllegalStateException for Pair
• KT-60325 K2 IDE. "IllegalArgumentException: source must not be null" on throw usage attempt
• KT-61431 K2: KtPropertyAccessorSymbolPointer pointer already disposed for $$result script property
• KT-58490 K2: LLFirTypeLazyResolver problems
• KT-58494 K2: LLFirAnnotationArgumentsLazyResolver problems
• KT-58492 K2: LLFirBodyLazyResolver problems
• KT-58769 K2: LL FIR: implement platform-dependent session factories
• KT-60343 K2 IDE. IllegalArgumentException on passing incorrect type parameter to function
• KT-61842 K2: reduce number of "in-block modification" events
• KT-62012 K2: "KtReadActionConfinementLifetimeToken is inaccessible: Called outside analyse method"
• KT-61371 K2: Analysis API standalone: register compiler symbol provider for libraries in standalone mode
• KT-60611 K2: reduce number of "in-block modification" events
• KT-61425 Analysis API: Provide a way to get a declared member scope for an enum entry's initializing anonymous object
• KT-61405 Analysis API: An enum entry should not be a KtSymbolWithMembers
• KT-55504 AA: remove dependency on :compiler:cli from standalone AA
• KT-60904 K2: IDE K2: "For DESTRUCTURING_DECLARATION_ENTRY with text _, one of element types expected, but FirValueParameterSymbol found"
• KT-61260 K2 Scripts: Containing function should be not null for KtParameter
• KT-61568 FIR Analysis API: collectCallCandidates gives presence to the top level functions in the presence of more suitable overrides
• KT-60610 K2 IDE: move "out of block" processing logic into LL FIR
• KT-61597 Analysis API: KotlinIllegalStateExceptionWithAttachments: expected as maximum one expect for the actual on errorneous code with multiple expects
• KT-59793 K2: class org.jetbrains.kotlin.fir.declarations.impl.FirErrorImportImpl cannot be cast to class org.jetbrains.kotlin.fir.declarations.FirResolvedImport
• KT-61599 K2: ContextCollector: Support smart cast collection
• KT-61689 Analysis API: ContextCollector provides incorrect context in scripts
• KT-61683 Analysis API: resolve ambiguities in kotlin project
• KT-61245 Analysis API: ContextCollector provides incorrect context for supertype constructor calls
• KT-60384 K2: Opening @JvmName source in IDEA: NPE at PsiRawFirBuilder$Visitor.toFirConstructor()
• KT-60918 K2 IDE: "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtDestructuringDeclarationEntry, fir is null"
• KT-61013 K2 Scripts: LLFirReturnTypeCalculatorWithJump: No designation of local declaration
• KT-59517 K2 IDE: KotlinExceptionWithAttachments: Modules are inconsistent
• KT-61331 K2: add cache restoring in case of existing context
• KT-61408 K2: IDE K2: "Inconsistency in the cache. Someone without context put a null value in the cache"

Analysis. Light Classes

Performance Improvements

• KT-63486 SLC: a lot of RAM is allocated in org.jetbrains.kotlin.asJava.LightClassUtil.isMangled

Fixes

• KT-66692 SLC: findAttributeValue for attribute w/ default value in Java returns null
• KT-61734 SLC: wildcard suppression not honored
• KT-65112 Symbol Light Classes don't support annotations on type parameters
• KT-65843 K2: Light method returns kotlin.Unit type for TestResult return type
• KT-65653 SLC: wrong binary resolution to function with value class
• KT-65393 SLC: missing deprecated-hidden property
• KT-64772 SLC: presence of source PSI for compiler-generated declaration
• KT-65425 K2 IDE: Seeing a reference to the class generated by compiler plugin exposed from Java code caused NPE from light classes
• KT-64937 SLC: internal setters are not mangled
• KT-63949 K2 IDE. Analyze hang on @Autowired constructor analysis
• KT-63087 K2 IDE: in .java source reference to JvmName names on unsigned type / value class are unresolved
• KT-64605 K2 IDE: usage of @Repeatable annotation in Java: false positive "Duplicate annotation"
• KT-64795 SLC: distinguish last v.s. non-last vararg value parameter type during binary resolution
• KT-61605 K2 IDE: Light elements do not obey platform contracts
• KT-57536 SLC: no need to populate members with expect modifier
• KT-64320 Decouple kotlin psi from java PSI
• KT-64282 Decouple KotlinIconProviderService from java PSI
• KT-63552 Symbol Light Classes don't support arrayOf and similar without parameters in property initializers and default parameter values

Apple Ecosystem

• KT-63821 Copy framework to BUILT_PRODUCTS_DIR in the embedAndSign task
• KT-67892 KotlinNativeLink task instantiates with a fixed list of apiFiles
• KT-64096 Diagnostic when embedAndSign used for framework with cocoapods-dependencies
• KT-66446 Diagnostic never showed, and build fails when CocoaPods dependency is used with embedAndSign task and linking type is dynamic
• KT-66445 Diagnostic never showed when CocoaPods dependency is used with embedAndSign task and linking type is static
• KT-62373 "Xcode higher than tested" diagnostic
• KT-63212 podInstall task fails without a proper diagnostic when xcodeproj gem is outdated

Backend. Native. Debug

• KT-65553 K2: Native: kt42208WithPassingLambdaToAnotherFunction test fails with K2
• KT-57365 [Native] Incorrect debug info on inline function call site

Backend. Wasm

New Features

• KT-65009 Generate TypeScript definitions for the @JsExport declarations in K/Wasm
• KT-58088 [PL] Support & enable partial linkage for Wasm
• KT-66327 Include information about particular Wasm target into KLib manifest

Fixes

• KT-66465 WASM support doesn't appear to be able to see some common declarations
• KT-66905 K/Wasm: support new version of exception handling proposal
• KT-66515 Wasm: "call param types must match" during the build
• KT-67435 K/Wasm: import.meta.url transforming into absolute local path in webpack
• KT-65777 Implement named export for Kotlin/Wasm
• KT-65660 [WasmJs] Support catching JS exceptions
• KT-65824 Wasm: Allow unsigned primitives to be used inside functions annotated with @JsExport
• KT-66103 Wasm: companion object is not initialized in test initializers1.kt
• KT-66471 Null method reference with Kotlin/Wasm on 2.0.0-Beta4
• KT-65210 K/Wasm ::class operator produces Number KClass for Short expression
• KT-66065 [Wasm] Make specialisations for closured primitive values
• KT-64890 K/Wasm compiler crash with external class and Kodein
• KT-66104 Wasm: compiler crash: NoSuchElementException: Sequence contains no element matching the predicate
• KT-65778 Create the same TypeScript tests infrastructure for Kotlin/Wasm that we have now for Kotlin/JS
• KT-65411 Kotlin/Wasm: Boolean boxed instances are not the same
• KT-65713 Kotlin/Wasm generates a wrapper that cannot run in Deno
• KT-63939 Kotlin/Wasm Support lazy associated object initialisation
• KT-61888 [Kotlin/wasm] in kotlin.test support for @AfterTest for async tests
• KT-64803 K/Wasm: non-capturing lambdas are not singleton unlike same lambdas in jvm
• KT-64449 K2: Implement K1WasmWasiCodegenBoxTestGenerated for K2
• KT-64829 K/Wasm: division remainder has a wrong sign
• KT-58852 WASM: two methods with different varargs: Class korlibs.template.dynamic.DynamicShape has 2 methods with the same signature [register(kotlin.Array)
• KT-61263 K/Wasm: add a way to turn on k2 in wasm examples using Compose
• KT-62863 Execution failed for task ':kotlinx-serialization-properties:wasmJsD8Test' in serialization in the K2 QG
• KT-62657 K/Wasm: switch to json repots for Kotlin Wasm Benchmarks
• KT-62147 [Kotlin/Wasm] Nothing typed when expression cause a backend error
• KT-61958 Update SpiderMonkey and return its usage in box tests when they switch to the final opcodes for GC and FTR proposals
• KT-60828 K/Wasm: return br_on_cast_fail usages
• KT-59084 WASM: "RuntimeError: illegal cast" caused by inline class and JsAny
• KT-60700 [WASM] test FirWasmCodegenBoxTestGenerated.testSuspendUnitConversion failed after KT-60259

Compiler

New Features

• KT-45375 Generate all Kotlin lambdas via invokedynamic + LambdaMetafactory by default
• KT-24664 No smartcast on stable property if receiver had non-null assertion
• KT-23915 Add smart cast to non-nullable type after elvis operator
• KT-61077 Support provideDelegate inference from var property type
• KT-59688 K2: consider removing smartcasts only from the only visibile property with specific name, not from all of them
• KT-7389 Intersection type for type parameter with multiple upper bounds in star projection
• KT-63477 Consider supporting builder-style type inference from Unit coercion of last statements in lambdas
• KT-61907 K2: builder inference works with assignments to member properties
• KT-61909 K2: builder inference infers correct types from assignments to extension properties
• KT-59551 K2: builder inference works with anonymous functions if builder parameter has a receiver with a postponed type variable
• KT-65443 [K/N] Implement header caches
• KT-4113 Smart casts for properties to not-null functional types at invoke calls
• KT-65681 K2: Improve error message of UPPER_BOUND_VIOLATED when upper bound is a captured type or other non-denotable type
• KT-32754 Choose existing extensions over additional built-ins members from JDK except overrides
• KT-57800 Support synthetic properties on super receiver
• KT-64350 K2: deprecate using typealias as a callable qualifier in imports
• KT-26565 Choose existing extensions over additional built-ins members from JDK
• KT-65478 JVM: Change inlined variable naming format
• KT-64702 Upper bound of type parameter is ignored when capturing of in-projection appears in out position
• KT-60274 K2: builder inference works through a delegated local variable inside builder argument
• KT-65859 Calls refinement extension point
• KT-15220 Reuse resolution results of common code for platform modules in multiplatform projects
• KT-60476 K2: False positive NO_VALUE_FOR_PARAMETER in platform code for value class with default parameter in common declaration
• KT-65153 K/N: extract liveness analysis to a separate phase
• KT-59098 Support -Xjdk-release=1.6/1.7 with -jvm-target 1.8
• KT-63670 Implement platform specific declaration clash diagnostics across all backends
• KT-62547 Introduce a language feature flag for smartcasts based on "memory" variables
• KT-60820 K1: Empty vararg value is inserted in serialized annotation call with expect default vararg value
• KT-58172 Forbid expect class A actual constructor
• KT-54443 Smart cast to non-null after safe-call in require
• KT-25747 DFA variables: propagate smart cast results from local variables
• KT-22997 Smart-cast should merge is-check for non-nullable type and a null check to a nullable type
• KT-22996 Smart casts should observe nullability after is-check with a nullable subject type
• KT-22004 Allow to resolve CONFLICTING_OVERLOADS with Deprecated(HIDDEN)
• KT-61955 Support more wider actual member visibility, if the expect member is effectively final
• KT-59504 K2 compiler does not require resolved 'componentX' functions for the placeholder ('_') variables in the destructuring declarations
• KT-62239 Allow enum entries without parentheses uniformly
• KT-11712 Smart cast is not applied for invisible setter

Performance Improvements

• KT-47545 NI: Slow type inference involving large when-expression (ConstraintInjector.processConstraints)
• KT-62714 Do not add nullability annotations to the methods of inner classes in enum entries
• KT-62903 Unoptimzied when compilation
• KT-67388 FP intellij: performance degradation in build 611
• KT-67507 K2: Slow compilation times when a class has a lot of possibly conflicting declarations
• KT-65005 K2: Investigate testCommonSuperTypeContravariant performance
• KT-65996 Compiler enters endless loop
• KT-66341 K2: Don't build IdSignatures in FIR2IR with IR f/o builder
• KT-66172 K2: Improve memory consumption of KtPsiSourceElement
• KT-50860 Combination of array set convention and plusAssign works exponentially
• KT-62798 'in' range checks are not intrinsified in kotlin-stdlib
• KT-65579 K2: performance regression in FP Space
• KT-61635 K2: getConstructorKeyword call in PsiRawFirBuilder.toFirConstructor forces AST load
• KT-62619 FIR: Checker performance regression due to MISSING_DEPENDENCY checkers
• KT-62044 Do not add nullability annotations to the methods of anonymous class
• KT-62706 Optimize KtSourceElement.findChild()
• KT-62513 Do not add nullability annotations to the methods of local classes
• KT-61991 K2: avoid redundant full body resolution for properties during implicit type phase
• KT-61604 [K/N] Bitcode dependency linking is slow for large compilations
• KT-61121 [K/N] Kotlin Native compiler performance is slow when generating large frameworks
• KT-57616 K2: Consider optimizing reversed versions of persistent lists in FirTowerDataContext

Fixes

• KT-67993 K2: PCLA Inference throws exception with local objects
• KT-61768 Wrong bytecode index in LineNumberTable when there is an incremental operation
• KT-63580 "AssertionError: access of const val: GET_FIELD" caused by const value and variable with delegation
• KT-63567 "NoSuchMethodError" on getting value of lazily initialized property by companion's const value
• KT-56078 K2: build kotlinx.coroutines
• KT-67609 K2: False negative INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_ERROR
• KT-57750 Report ambiguity error when resolving types and having the same-named classes star imported
• KT-65603 K2: No approximation is done on public, but effectively private property
• KT-59932 K2: Disappeared AMBIGUOUS_ANONYMOUS_TYPE_INFERRED
• KT-59906 K2: Disappeared CAPTURED_VAL_INITIALIZATION
• KT-53886 NoSuchMethodError exception in Kotlin/Native compiler
• KT-57678 K2: Inconsistency in how K2 analyzes unresolved code for loops and changing closures
• KT-57871 K1/K2 inconsistency on if-conditional without else-branch in parenthesis
• KT-56384 K2: build IntelliJ monorepo master branch
• KT-49191 Leaked integer literals from lambda with flexible return type
• KT-65812 K2: "OutOfMemoryError: Java heap space" in kotlin.utils.SmartList.add
• KT-67224 K2/Native: Member overrides different '@Throws' filter from separate module
• KT-65623 K2: Unresolved reference in connection with casts
• KT-64136 K2: NSME with Anvil compiler plugin
• KT-51241 Provide a error when override method has different set of context receivers
• KT-52920 Confusing "Multiple arguments applicable for context receiver" error message
• KT-67912 K2: Cannot inference type properly from inline function with Type parameter
• KT-68056 Prohibit referencing java field in case of conflict with property from companion object of the derived class
• KT-61129 K2: Implement error suppression warning
• KT-67367 K2: Incorrect resolution to top-level function with less specific signature in presence of SAM constructor on the same tower level
• KT-50179 Fix DUPLICATE_LABEL_IN_WHEN warning with new rules of complex boolean constants
• KT-45334 Prohibit referencing constructors of sealed classes by its inner members
• KT-59943 K2: Disappeared OPERATOR_MODIFIER_REQUIRED
• KT-67875 K2: Resolution ambiguity between Iterable and varargs
• KT-67699 Not enough information to infer type argument for 'Error' using Arrow's Raise context receiver since Kotlin 2.0.0-Beta3
• KT-67486 K2: Calling method from a Java (implementing a Kotlin class) with named parameters is no longer possible if Java method has different parameter names
• KT-66527 K2: type mismatch on override for type
• KT-59897 K2: Disappeared PACKAGE_OR_CLASSIFIER_REDECLARATION
• KT-50020 K2: False-negative USAGE_IS_NOT_INLINEABLE when lambda in receiver position
• KT-44557 Implement main function detection to FIR
• KT-67810 K2: public-API inline function cannot access non-public-API annotation enum
• KT-66447 Implement KT-59138 under a language feature
• KT-54862 Anonymous type can be exposed from private inline function from type argument
• KT-37592 Property invoke of a functional type with receiver is preferred over extension function invoke
• KT-51194 False negative CONFLICTING_INHERITED_MEMBERS when dependency class contained in two different versions of the same dependency
• KT-67221 K2: "new inference error [NewConstraintError at Incorporate TypeVariable" for captured type
• KT-66701 K2: Java interface method override via Kotlin class rejected
• KT-60604 K2: introduced NON_PUBLIC_CALL_FROM_PUBLIC_INLINE, @PublishedApi needed for constants in annotations
• KT-64309 Generate a variable mapping for continuation parameter in suspend methods just from the start
• KT-65438 K2: Introduce WEAKLY_HIDDEN concept to built-in-JDK content mapping
• KT-65235 JDK 21 might lead to change in overloads resolution
• KT-66768 K1: False positive UNRESOLVED_REFERENCE in super.getFirst/getLast call
• KT-67106 Platforms libs-dependant autotests for ObjC checkers
• KT-65440 K2: Mark all potential implementations of List.getFirst()/getLast() as deprecated independently of JDK
• KT-65594 K2: Type inference fails on NullMarked object with star type
• KT-62849 Unoptimised bytecode for Java synthetic property references
• KT-60174 JVM IR inline: accidental reification in various cases
• KT-57609 K2: Stop relying on the presence of @UnsafeVariance using for contravariant parameters
• KT-54316 Out-of-call reference to companion object's member has invalid signature
• KT-66976 Some value class diagnostics are missed
• KT-57426 Incorrect error message on inapplicable smartcast from alien property
• KT-55111 OptIn: forbid constructor calls with default arguments under marker
• KT-49856 Incorrect smartcast on var assigned in try-catch block
• KT-41237 ReturnsImplies contract for receiver of member function does not work (no smartcast)
• KT-37878 No Smart cast for class literal reference of nullable generic type
• KT-35846 Smart cast with unchecked cast leads to unresolved call that was resolved before (both old and new inference)
• KT-30867 Unsound smartcast if smartcast source and break is placed in for-in header as function arguments
• KT-30267 Inconsistent smart casts in while (true)
• KT-33917 Prohibit to expose anonymous types from private inline functions
• KT-28889 Smart cast does not work with boolean and infix function
• KT-54790 False positive NO_ELSE_IN_WHEN when all interfaces are sealed
• KT-54920 K2: when with a single branch stops being exhaustive the second time it's done
• KT-53364 False positive UNUSED_VARIABLE warning for variable that is used across multiple blocks
• KT-43234 False positive INVALID_IF_AS_EXPRESSION caused by if without else inside else inside synchronized()
• KT-38490 False negative INVALID_IF_AS_EXPRESSION with unreachable code and coercion to Unit
• KT-35510 No INVALID_IF_AS_EXPRESSION ("'if' must have both main and 'else' branches if used as an expression") diagnostic for if-expression with only one branch and Nothing type condition
• KT-34016 Contracts - variable cannot be initialized before declaration
• KT-56408 Inconsistent rules of CFA in class initialization block between K1 and K2
• KT-33829 False positive SENSELESS_COMPARISON with assignment in catch block
• KT-30717 False positive UNUSED_VARIABLE with local var used in inline lambda block with loop, return and other lambda
• KT-28232 RETURN_NOT_ALLOWED in inline lambda argument of '[... ]' operator convention
• KT-26116 No error when class member val is referenced in inline function before it is assigned later on
• KT-25311 Calls on error type values lead to false-positive unreachable code
• KT-24372 Misleading warning on unused setter parameter in some cases
• KT-23680 False positive UNREACHABLE_CODE on throw with a return inside finally clause
• KT-23502 When exhaustiveness is not checked for unreachable code, resulting in JVM back-end error
• KT-22621 "throw throw Exception()": False negative UNREACHABLE_CODE warning
• KT-22317 No INITIALIZATION_BEFORE_DECLARATION without primary constructor
• KT-67307 K2: "Cannot find cached type parameter by FIR symbol" in JpaRepository.saveAll
• KT-67185 K2: Incorrect coercion-to-Unit leading to CCE at runtime
• KT-64891 K2: consider supporting/forbidding foo.(bar)() syntax
• KT-59480 K2: build moko-resources
• KT-65771 K2: "IndexOutOfBoundsException: Cannot pop operand off an empty stack" when calling method imported using typealias as callable qualifier
• KT-67502 K2: "property must be initialized or be abstract" with try-finally in secondary constructor
• KT-67456 K2: "property must be initialized or be abstract" depending on constructor declaration order
• KT-63524 K2: "Not enough information to infer type argument"
• KT-67628 K2: "IllegalArgumentException: Expected nullable type" — alias of nullable type analyzed as non-nullable in type parameter
• KT-67625 K2: Array aliases can't be used as vararg values
• KT-67624 K2: False negative "The feature "break continue in inline lambdas" is experimental and should be enabled explicitly" in elvis operator
• KT-61787 K2 doesn't report warnings for some Gradle tasks
• KT-62550 K2: Different JVM signature of lambda with Unit return type
• KT-65120 K2 Consider turn into platform checkers ones which checks for objC
• KT-60271 K2: origins are not set on compare operators
• KT-28695 Compiler does not detect uninitialized property in lambda
• KT-67593 K2: false negative SUPER_CALL_WITH_DEFAULT_PARAMETERS
• KT-67484 K2: FIR2IR generates incorrect access to f/o of lateinit internal var
• KT-47382 JVM / IR: "AssertionError: Unbound private symbol IrFieldSymbolImpl" caused by string template in constructor and extension property
• KT-67581 K2: Compiler fails on actualizing abstract class with sealed Java class via type alias
• KT-49404 Fix type unsoundness for contravariant captured type based on Java class
• KT-22379 Condition of while-loop with break can produce unsound smartcast
• KT-67021 K2: Cannot find cached type parameter by FIR symbol: E of the owner: FirRegularClassSymbol Function
• KT-67014 K1/K2 handle when expression as annotation target differently
• KT-67254 K1/K2 both allow annotations on loops, assignments, array sets
• KT-66960 K2. KMP. False negative 'when' expression must be exhaustive without sealed class inheritor from common source-set
• KT-65578 K2: implement a deprecation warning for KT-57014 (wrong nullability returned from JDK SAM constructor lambda)
• KT-63466 @NonNull on a type-variable usage doesn't take precedence over a wildcard type argument
• KT-56134 K2: NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER diagnostic is reported for the wrong symbol
• KT-66196 Convert INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION_ERROR to warning
• KT-66793 K2: "assigning single elements to varargs in named form is prohibited." caused by varargs supplied from java with elvis operator
• KT-59872 K2: Disappeared TYPE_MISMATCH
• KT-67192 K2: Disappeared TYPE_MISMATCH [3]
• KT-63319 K1/K2: inconsistent behavior around NullMarked and type parameter based types
• KT-59882 K2: Disappeared CANNOT_INFER_PARAMETER_TYPE
• KT-67191 K2: Disappeared TYPE_MISMATCH [4]
• KT-53752 Missed subtyping check for an intersection type
• KT-52628 Deprecate SAM constructor usages which require OptIn without annotation
• KT-54066 Deprecate upper bound violation in typealias constructors
• KT-64860 K2: Consider using different ConstraintPosition when fixing variables for PCLA
• KT-67189 K2: Disappeared TYPE_MISMATCH [5]
• KT-67551 K2: No wrong annotation target error for for statement
• KT-67374 K2: Object is not smartcasted to type parameter type
• KT-67264 K2: "argument type mismatch" with suspend lambda and java wildcard
• KT-63257 K2: FIR2IR inserts incorrect implicit cast for smartcasted variable
• KT-66902 K2: "Named arguments are prohibited for non-Kotlin functions" with Java interop
• KT-67311 K2: "Argument type mismatch" caused by lambda type when using named arguments
• KT-57011 Make real type of a destructuring variable consistent with explicit type when specified
• KT-62043 K2: Fix FirCompileKotlinAgainstCustomBinariesTest.testRawTypes
• KT-66256 K2: compiler FIR2IR crash on SAM-conversion to value parameter of in-projected type
• KT-67124 "Unstable inference behaviour with multiple generic lambdas" compilation error
• KT-59791 K2: Implement partially constrained lambda analysis
• KT-66743 Lambda receivers and anonymous function parameters of inaccessible types are allowed
• KT-67315 K2: Some default imports are not excluded
• KT-56126 Avoid using descriptors at JvmPlatformAnalyzerServices::computePlatformSpecificDefaultImports
• KT-66513 K2: Suppressing OPT_IN_USAGE_ERROR is now a warning in K2, preventing safe code gen compatible with -Werror
• KT-67233 False negative UNSAFE_CALL with type check after null coalescing with 'OR'
• KT-52802 Report ambiguity resolving between property/field and enum entry
• KT-64920 Json.encodeToString yields different results depending on whether typealias is used
• KT-58260 Make invoke convention work consistently with expected desugaring
• KT-67314 PCLA works inconsistently with smart-cast related CS forks
• KT-66797 K2 JS: Primary constructor property annotation with target VALUE_PARAMETER is put on property instead of parameter
• KT-55179 False negative PRIVATE_CLASS_MEMBER_FROM_INLINE on calling private class companion object member from internal inline function
• KT-54663 Projected types don't take into account in-place not null types
• KT-58191 K2: capturing closures successors that are already resolved (thanks to backward edges) must be taken into account for allowing smart casts
• KT-67144 K2: potential NPE when assigning to unstable vars
• KT-66971 K2: missing SMARTCAST_IMPOSSIBLE on open val declared in another module
• KT-66904 K2: possible NPE when reassigning captured variables
• KT-57031 operator assignment, increment/decrement should be considered as variable reassigning in terms of DFA. green in K1 -> red in K2 for unsound code
• KT-67212 K2: "Failed to find functional supertype for class org.jetbrains.kotlin.fir.types.ConeCapturedType"
• KT-67283 K2: No SAM conversion for fun interface with abstract toString
• KT-67318 Compiler fails with OutOfMemoryError on combination of PCLA+smart cast
• KT-66956 K2: false negative CONST_VAL_WITH_NON_CONST_INITIALIZER for inc/dec operators
• KT-64233 K2: K1/K2: ensure JVM ABI consistency for quality gates projects
• KT-63535 K2: Apply DFA implications for nullable Nothing to both sides
• KT-63413 K2 / kotlinx-atomicfu: "IllegalStateException: Expected some types"
• KT-62931 K2: extra class files for @OptionalExpectation marked annotations
• KT-34307 Confusing error message on lambda return type mismatch
• KT-62151 K2. overload resolution ambiguity for calls of Java record compact constructors
• KT-60732 K2 Scripting: TeamCity DSL test
• KT-65062 K2: build kotlinx.collections.immutable and pass to CI
• KT-59467 K2: build toolbox-enterprise
• KT-67205 K2: can't deserialize annotation with local class as argument
• KT-52175 K2: WRONG_ANNOTATION_TARGET for annotation that used inside if
• KT-65449 K2: build KAPT user project and pass it to CI
• KT-61384 IrFakeOverrideBuilder incorrectly checks visibility for friend modules
• KT-67142 K2: IrFakeOverrideBuilder: AbstractMethodError on raw type argument in a Java superclass
• KT-65105 K2 / Native: Member overrides different '@Throws' filter
• KT-62570 IncompatibleClassChangeError due to overriding final method
• KT-57812 K2: support serialization of type annotation's arguments
• KT-67190 K2: Disappeared TYPE_MISMATCH [2]
• KT-56683 K2: No control flow analysis for top-level properties
• KT-67188 K2: Disappeared TYPE_MISMATCH [6]
• KT-62063 K2: drop pre-release flag in 2.0-RC
• KT-67187 K2: Disappeared TYPE_MISMATCH [1]
• KT-66909 K2: Implement a diagnostic for returning null from a lambda with expected return type Unit!
• KT-66534 False positive ASSIGNMENT_TYPE_MISMATCH in lambdas with expected return type Unit!
• KT-63381 IrFakeOverrideBuilder: PublishedApi affects overridability of internal members
• KT-63836 K2: No deprecation error message in common metadata compilation
• KT-57618 K2: complex deprecation messages are not printed in the error
• KT-59856 K2: Check ConeDiagnostics that are not mapped to KtDiagnostics
• KT-57502 K2: Smart casts should be forbidden if variable that remembers the smart cast is declared by delegation
• KT-63967 K2: Missing getterSignature in metadata for script variables
• KT-59372 K2: Missing SELF_CALL_IN_NESTED_OBJECT_CONSTRUCTOR_ERROR
• KT-60526 K2: Fix the TODO in convertToIr.kt
• KT-67090 K2: Exception from metadata compilation when compiling class with annotations from dependencies
• KT-59479 K2: build KorGE
• KT-64502 K2: Internal error on calling function before declaration
• KT-62560 K2: KAPT4: annotation @ReplaceWith is missing a default value for the element 'imports'
• KT-67027 K2: Review all use-sites of annotation arguments utilities
• KT-65012 IR Evaluator: NoSuchFieldException when evaluating protected/private fields of superclasses
• KT-66953 K2: toByte() call on Char leads to ClassCastException for klib backends
• KT-60096 K2: Introduced API_NOT_AVAILABLE
• KT-59484 K2: build trustwallet sample
• KT-64151 K2: consider implementing FIR-level constant evaluation
• KT-65787 K2: "KotlinIllegalArgumentExceptionWithAttachments: Expected FirResolvedTypeRef with ConeKotlinType" caused by passing lambda expression with multiple labels to function
• KT-53629 K2: forbid multiple labels per statement
• KT-65255 K2 / KJS: "IllegalArgumentException: Candidate is not successful, but system has no contradiction"
• KT-65195 K2: Unexpected exception when executing dynamic array element inc/dec
• KT-63416 K2 / Contracts: False positive "Leaked in-place lambda" warning caused by suspend lambda with callsInPlace contract
• KT-66717 Incorrect diagnostics around intersection property overrides
• KT-63540 Restrict the CONFLICTING_OVERLOADS + DeprecatedLevel.HIDDEN ignore to final callables
• KT-56587 There are no warnings in some cases when Enum.entries is shadowed
• KT-65111 K2: Java star imports don't work in KJK interdependencies
• KT-63709 K2: Argument smartcasting impacting receiver and call resolution for implicit invoke
• KT-63530 K2: Disable passing data flow info from in-place lambdas
• KT-65377 K2: "Argument type mismatch" caused by approximated captured type argument of generic type
• KT-59400 K2: Missing CANNOT_INFER_VISIBILITY
• KT-62305 K2: Missing Fir metadata serialization support for scripts
• KT-64534 K2: org.jetbrains.kotlin.util.FileAnalysisException: Somewhere in file
• KT-57555 [LC] Forbid deferred initialization of open properties with backing field
• KT-65776 [LC] K2 breaks false && ... and false || ...
• KT-64641 K2: Change in inference of supertype of function types with receiver
• KT-65649 K2: IR has incorrect origins for some inplace updating operators
• KT-64295 Forbid recursive resolve in case of potential ambiguity on upper tower level
• KT-62866 K2: Change qualifier resolution behavior when companion object is preferred against static scope
• KT-55446 Change impact of private-to-this visibility to resolution
• KT-64255 Forbid accessing internal setter from a derived class in another module
• KT-64966 Forbid generic delegating constructor calls with wrong type for generic parameter
• KT-63389 K2: WRONG_ANNOTATION_TARGET is reported on incompatible annotations of a type wrapped into ()?
• KT-66748 K2: False-positive AMBIGUOUS_SUPER in toString
• KT-67013 K2: ClassCastException: class FirConstructorSymbol cannot be cast to class FirNamedFunctionSymbol
• KT-64872 K2: do-while condition able to access uninitialized variable
• KT-66350 K2: "IllegalStateException: Unsupported compile-time value STRING_CONCATENATION" when evaluating an annotation argument string
• KT-61798 K2 incorrectly calculates modality of property accessors
• KT-65035 IrFakeOverrideBuilder: AbstractMethodError on inheritance from Java subclass of CharSequence with inherited implementations
• KT-61579 K2: Inconsistent reporting UNINITIALIZED_VARIABLE for top-level properties
• KT-66730 K2: False positive RETURN_TYPE_MISMATCH in return statement in SAM constructor
• KT-66570 Generic wildcard upper bound inference error
• KT-65272 K2: invoke operator applies "restricted suspending call" error differently than K1
• KT-66148 K2. Sources of receivers updated twice because of PCLA
• KT-62525 K2: IllegalStateException: Can't find KotlinType in IrErrorType: IrErrorType(null)
• KT-64266 K2: don't report MISSING_DEPENDENCY_CLASS on lambda parameter for non-generic types
• KT-65300 K2: this-expressions in initializers and local declarations don't introduce type information to either BI or PCLA
• KT-66463 K2: false positive ACCIDENTAL_OVERRIDE_CLASH_BY_JVM_SIGNATURE
• KT-62356 Prohibit using property+invoke for iterator
• KT-63631 K2: constant value UByte.MAX_VALUE is incorrectly deserialized from metadata
• KT-65386 K2: Different signature of invoke for Unit lambda
• KT-60574 K2: generated IR for suspendCoroutineUninterceptedOrReturn is different from K1 (K2 uses Any? instead of Unit)
• KT-66512 K2: Incorrect diagnostic in lambda whose expected type is a type alias to Unit
• KT-66279 K2: False positive INITIALIZER_TYPE_MISMATCH with return Unit in a lambda with the expected type () -> Unit
• KT-66277 K2: False negative RETURN_TYPE_MISMATCH with empty return in lambda assigned to a property
• KT-66654 K2 FIR resolution: Mismatch between actual type and expected type for a value parameter when the parameter type is a function type with special function kind
• KT-66638 Cannot access properties of a generic type with wildcards
• KT-66690 K2: don't report MISSING_DEPENDENCY_CLASS on expression without errors for generic type arguments
• KT-66767 K2: Destructuring declaration inside initializer failure
• KT-63695 JVM: Don't use plugin extensions when compiling code fragment
• KT-65727 K2: add proper package for properties generated from destructuring declarations
• KT-64854 K2: Trying to access private field on runtime with contracts
• KT-65388 IrFakeOverrideBuilder - custom annotation is available in fake getter/setter
• KT-66595 K2: compiler FIR checking crash on destructuring declarations calling hidden componentN declarations
• KT-62129 K2: Verification error on calling an extension from an env with 2+ context receivers
• KT-41607 NI: UNSAFE_CALL caused by try catch block assigning to a nullable variable
• KT-63932 K2/Native codegen test failures around builder inference
• KT-66352 K2: difference between LL FIR and FIR for componentN functions
• KT-66686 K2 Script: Unresolved reference of script-specific entities on out-of-order resolve
• KT-65523 K2: add proper package for result$$ property
• KT-66699 Restore HostManager ABI
• KT-60533 Inliner incorrectly captures non-null value as null in coroutines
• KT-57925 K2: Consider removing FirEmptyContractDescription
• KT-61893 K2: should not resolve to Java function with Kotlin hidden-level deprecation
• KT-59669 K2: Explore assignments in in-place lambdas
• KT-66271 Fir: Deserialize classFile, functionFile and propertyFile from KlibMetadataProtoBuf
• KT-57957 K2: Symbol providers are frequently queried with error-named class IDs
• KT-66046 K2: false negative CANNOT_WEAKEN_ACCESS_PRIVILEGE on property
• KT-66677 K2: OVERRIDE_DEPRECATION isn't reported for WEAKLY_HIDDEN method toArray()
• KT-62793 K2: slightly different bytecode of suspend conversions
• KT-57244 K2: slightly different naming scheme for suspend conversion adapters
• KT-60256 K2: types are not substituted in suspend conversion
• KT-66673 K2/JS: FirJsInheritanceClassChecker doesn't expand type aliases to supertypes
• KT-66475 K2/KMP/Wasm: report WRONG_JS_INTEROP_TYPE from a platform checker
• KT-66474 K2/KMP/JS: report EXTERNAL_TYPE_EXTENDS_NON_EXTERNAL_TYPE from a platform checker
• KT-66473 K2/Wasm: FirWasmExternalInheritanceChecker doesn't expand type aliases
• KT-64407 Implement WriteSignatureTestGenerated for K2
• KT-64438 K2: Port CodegenTestCase to K2
• KT-64404 Implement WriteFlagsTestGenerated for K2
• KT-66491 K2 / KJS: "Name contains illegal characters." caused by backticks in import
• KT-66275 K2: false-positive "Java module does not depend on module" error on access to inherited member from twice-transitive dependency via class from transitive dependency
• KT-65801 IrFakeOverrideBuilder - visibility is lost for setter in KJK hierarchy
• KT-65576 K2: Incorrect resolution of variable+invoke when the property type is not computed
• KT-58575 Private Kotlin property prevents use of Java get- and set-methods from Java-Kotlin-Java hierarchy
• KT-61282 K2: Incorrect overridden function for java.nio.CharBuffer.get
• KT-65464 K2: False positive UNRESOLVED_REFERENCE on extension property call defined in KJK hierarchy
• KT-59470 K2: build KaMPKit
• KT-60510 Smartcast to functional type does not work in when exprssion
• KT-59677 K2: Report diagnostics about missing receiver for delegated constructor call to inner class
• KT-65183 K2: Remove workaround for @OnlyInputTypes and captured types with recursive supertypes from inference
• KT-66120 IrFakeOverrideBuilder: wrong return type in intersection with 3 classes
• KT-65939 IrFakeOverrideBuilder - nullability annotation is lost in intersection without annotation
• KT-59473 K2: build firebase-kotlin-sdk
• KT-66356 K2: type mismatch error when generic type with inaccessible generic type as type argument is produced and consumed by declarations from dependencies
• KT-65193 K2: "JAVA_TYPE_MISMATCH" caused by MutableList
• KT-66636 NoSuchMethodError: 'void org.jetbrains.kotlin.ir.expressions.impl.IrCompositeImpl. in the FLysto K2 QG
• KT-63941 K2: "IllegalStateException: Unsupported compile-time value STRING_CONCATENATION" caused by class reference in string expression as annotation parameter
• KT-65704 K2: computeCommonSuperType of flexible type with recursive captured type argument produces giant multi-level-deep type
• KT-65410 K2: ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED for 'removeAt' in KJK hierarchy
• KT-65184 K2: disappeared TYPE_MISMATCH for java collections
• KT-66392 K2: Exception in KJK hierarchy with implicit types
• KT-66551 Revert temporary commits after KT-62063 and bootstrapping
• KT-65218 FIR LL and DiagnosticFE10 tests start to fail in case of adding any new declaration into stdlib commonMain
• KT-66552 K2: build of intellij crashes the compiler
• KT-63746 K2: JSpecify: If a class has a @Nullable type-parameter bound, Kotlin should still treat unbounded wildcards like platform types
• KT-66504 K2: plusAssign operator call is resolved differently than function call
• KT-48515 JSpecify: If a class has a @Nullable type-parameter bound, Kotlin should still treat unbounded wildcards like platform types
• KT-57588 K2/Native: False positive '"CONFLICTING_OVERLOADS", "PARAMETER_NAME_CHANGED_ON_OVERRIDE" on overriding objc methods
• KT-58892 K2: Parcelize doesn't work in common code when expect annotation is actualized with typealias to @Parcelize
• KT-65882 K2: "KotlinNothingValueException" caused by unsafe cast and Nothing::class
• KT-66124 K2: Remove FirLambdaArgumentExpression and FirNamedArgumentExpression after resolution
• KT-65959 K2: Incorrect warnings about inline function impact
• KT-64994 K2: @Composable lambda type is not resolved from other modules
• KT-66048 K2: property becomes nullable in KJK hierarchy if base declaration has implicit return type
• KT-47843 No error reported on assigning "continue" to a companion object
• KT-47530 NI: Unexpected TYPE_MISMATCH when combining nested conditional and contravariant type argument
• KT-49583 NI: NullPointerException on compiling anonymous function returning a method reference
• KT-42782 NI: Smart casting for generic type doesn't work if the variable is already smart cast
• KT-38031 FIR: Discrepancy in call resolution for qualifiers with old FE
• KT-65789 K1/K2: Resolve change in constructor/top-level function ambiguity
• KT-66150 K2: expects type argument in super qualifier
• KT-60971 Incorrect "cannot inline bytecode built with JVM target ..." on property setter if only getter is inline
• KT-61514 K2: Build fake overrides using IR during Fir2IR
• KT-65584 K2: "Duplicate parameter name in a function type"
• KT-50008 JSpecify @Nullable annotation on type-parameter bound prevents type-variable usages from being platform types
• KT-37000 IndexOutOfBoundsException from TypeResolver on typealias with cyclic references
• KT-56988 CFG, smart casts: red in K1 -> green in K2 for invalid code
• KT-62118 FIR: "HashMap.entry" has invalid enhanced type
• KT-64840 K2: Bare type are not allowed for TV based values during PCLA
• KT-65415 K2: Stdlib K2 build error: IrConstructorSymbolImpl is already bound
• KT-66449 Make DiagnosticSuppressor a project-level extension
• KT-66411 FIR: Real source on fake block around assignment expression in the "when" branch affects resolve in K2 Analysis API and IDE
• KT-65249 K2: False positive modality is different for native compilation
• KT-65982 K2 Scripts cannot disambiguate declarations imported from default and explicit imports
• KT-65677 K2: Unable to resolve parent class from companion object
• KT-47310 Change qualifier resolution behavior when companion property is preferred against enum entry
• KT-41034 K2: Change evaluation semantics for combination of safe calls and convention operators
• KT-63529 K2: Compiler does not detect tailrec call with nullable type
• KT-66441 Remove symbol table from IR fake override builder in Fir2Ir
• KT-64846 K2: false negative CONFLICTING_JVM_DECLARATIONS on inheritance from Java collection subclass with a conflicting override
• KT-62312 [K2/N] revert putting stdlib to the beginning of libraries list in the compiler
• KT-58203 K2: false-negative incompatible types error on is-check with unrelated type
• KT-65722 K2: Property reference refers to non-existent functions
• KT-65878 K2: "ClassCastException" when passing nun-suspend lambda to SAM constructor with named argument
• KT-66379 K2: No extra message in UPPER_BOUND_VIOLATED for cases with CapturedType
• KT-59475 K2: build nowinandroid
• KT-65926 K2: add tests for all fixed-in-k2 / not-reproducible-in-k2 unresolved issues
• KT-59481 K2: build aws-sdk-kotlin + smithy-kotlin
• KT-65022 K2: Compiler crashes when array literal is used in delegate expression
• KT-62836 K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource
• KT-64727 K1: Closing bracket of object inside crossinline lambda or inside lambda in inline function is not hit on step-over
• KT-64726 K1: Cannot stop on closing bracket of crossinline lambda inside of another crossinline lambda
• KT-64725 K1: Cannot stop on closing bracket of lambda of inline-only function
• KT-66272 Could not load module with a combination of type parameters
• KT-66243 Could not load module in a builder inference with lambda with typed parameter
• KT-66229 Could not load module in a builder inference with Map.Entry
• KT-66313 K2: declaration-order-dependent false-positive "recursive problem in type checker" error on getX declaration with implicit return type that calls x declaration via intermediate declaration in getX's expression body
• KT-61041 K2: Consider getting rid of confusing shouldRunCompletion and shouldAvoidFullCompletion function in FirInferenceSession
• KT-66267 K2: generic function's type parameter is erased if present as type argument in type of callable reference to member of generic function's local class
• KT-61448 K2: Disappeared DEPRECATION in testWithModifiedMockJdk
• KT-60106 K2: Introduced REIFIED_TYPE_FORBIDDEN_SUBSTITUTION
• KT-58279 K2. False-negative Smart cast to is impossible, because is a public API property declared in different module for Java static field
• KT-61626 K2: Module "com.soywiz.korlibs.kmem:kmem" has a reference to symbol korlibs.memory/Buffer|null[1]
• KT-57427 Fix inconsistencies in name manglers that use different declaration representations
• KT-66258 K2: accessor-targeted @Suppress annotation is ignored on primary constructor property
• KT-29559 Smart Cast functionality doesn't behave in an expected way in all cases
• KT-60777 K2: missing INLINE_FROM_HIGHER_PLATFORM
• KT-66260 K2: false-positive "abstract function in non-abstract class" error on abstract member function of open interface
• KT-66067 K2: different overrides are created in a complex hierarchy with raw types and upper-bounded type parameters
• KT-65821 K2: [NONE_APPLICABLE] None of the following functions is applicable: [constructor(message: String?): Throwable, constructor(cause: Throwable?): Throwable, constructor(): Throwable, ...]
• KT-66268 K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl
• KT-63563 K2: False negative RETURN_TYPE_MISMATCH with empty return
• KT-60797 K2: implement JAVA_MODULE_DOES_NOT_EXPORT_PACKAGE
• KT-28159 Smartcasts don't work with Nothing? values (Nothing? considered a null constant => an unstable value)
• KT-28262 Smartcasts for reference equality don't work if explicit true check is used
• KT-66000 K2: inherited inline getter has not been inlined
• KT-66158 K2: not nullable return type for upper-bounded kotlin type parameter in KJK hierarchy
• KT-57268 K2: extra methods remove and/or getOrDefault are generated for Map subclasses with JDK 1.6 in dependencies
• KT-63577 K2: false-positive "wrong number of type arguments" error on callable reference to member of generic function's local class
• KT-62352 jspecify NonNull annotation seems not supported
• KT-65636 PowerAssert: Negative contains operator not aligned correctly in K2
• KT-64271 K2: Wrong overriddenSymbols for toString of data class
• KT-62779 K2: Difference in fake override generation
• KT-61941 K2: FIR2IR incorrectly generates f/o structure for complex java/kotlin hierarchies with remapped jvm declarations
• KT-60283 K2: fake override for java static method is not generated
• KT-65095 K2: no bridge generated for getOrDefault when inheriting from Java Map implementation
• KT-57301 K2: getOrDefault and bridges are not generated for certain Map subclasses
• KT-50916 K2: store resolved type inside ConeStubType after builder inference
• KT-65857 K2: java.lang.IllegalArgumentException: Unknown visibility: unknown
• KT-66174 -Xjdk-release 6 and 7 have a misleading error message
• KT-66175 Wrong supported options list for -jvm-target compiler option
• KT-58814 Too eager subtype inference in when expression
• KT-65408 K1: "There are still 2 unbound symbols after generation of IR module" caused by data object's copy function usage
• KT-65844 False Positive "This class can only be used as an annotation or as an argument to @OptIn" when passing as an array
• KT-58697 K2: Tests: Assert no dump files exist when dump directive isn't present
• KT-63258 NPE with function reference from within lambda during init
• KT-60597 K1: IllegalArgumentException: fromIndex(0) > toIndex(-1) when wrapping receiver with backticks
• KT-33108 USELESS_CAST false positive for cast inside lambda
• KT-58458 K1: "java.lang.NullPointerException" with 'var equals' or 'val equals' as argument in when
• KT-58447 K1: "AssertionError: Recursion detected on input" with @ParameterName and extension
• KT-41013 OVERLOAD_RESOLUTION_AMBIGUITY for functions takes lambda: can not resolve it, but only named lambda parameter
• KT-56032 [LC issue] Incorrect wrapping when passing java vararg method to inline function
• KT-65588 K2: typealias of primitive type in vararg causes ABI incompatibility
• KT-23873 Indexed access operator can cause false USELESS_CAST warning
• KT-31191 Contract not smartcasting for extension functions in if-statement with multiple conditions
• KT-28725 ReenteringLazyValueComputationException during resolution & inference
• KT-35429 ReenteringLazyValueComputationException when accessing property with same name
• KT-63826 K2: expect for expect crashes the compiler
• KT-25668 False-positive error on restricted suspending function call with callable reference
• KT-18055 SMARTCAST_IMPOSSIBLE on mutable data class variable with a read-only property
• KT-15904 Improve error message when type of generic extension call is inferred from receiver
• KT-66186 K1 diagnostics miss some reporting messages
• KT-65101 Generics behaving different when parenthesized
• KT-63444 TYPE_MISMATCH caused by Inner class with nullable type and star projection
• KT-62022 K1 False positive EXPOSED_FUNCTION_RETURN_TYPE on generics with anonymous object types
• KT-58751 Definitely non-nullable type gets lost with star projection
• KT-56624 "Unresolved reference" with import alias and enum constructor call
• KT-54726 K1: StackOverflowError on mutually recursive typealiases
• KT-35134 False negative INCOMPATIBLE_TYPES, EQUALITY_NOT_APPLICABLE when comparing smartcast value to Boolean
• KT-20617 Qualified this@property does not work in extension properties with body expression
• KT-10879 OVERLOAD_RESOLUTION_AMBIGUITY for synthetic property accessor with smartcasted receiver
• KT-26768 K1 IDE: False positive "Smart cast to '$CLASS$' is impossible", on local variable in run closure
• KT-63525 K2: "IllegalStateException: Fake override should have at least one overridden descriptor" caused by unreachable code
• KT-65333 K2: UNRESOLVED_REFERENCE for java inner class in intersection scope
• KT-61060 K2: Rewrite delegate inference
• KT-63712 Make it possible to add new stdlib API with SinceKotlin(2.0)
• KT-63741 K2: fix visibility inference with overridden + inherited member
• KT-64488 K2: False positive DEPRECATED_ACCESS_TO_ENTRY_PROPERTY_FROM_ENUM with context receivers
• KT-62283 K2: build Dokka with K2 user project and pass it to CI
• KT-57585 K2/MPP: false-negative errors on expect/actual modifiers mismatch
• KT-66077 IrFakeOverrideBuilder: NPE from IrJavaIncompatibilityRulesOverridabilityCondition.doesJavaOverrideHaveIncompatibleValueParameterKinds
• KT-57044 K2 LL Tests: false-positive 'Overload resolution ambiguity between candidates: [@Override() fun test(): Unit , fun test(): Unit]'
• KT-66020 K2: ISE "IrPropertySymbolImpl is unbound. Signature: null" on a property with getter with @JvmName
• KT-62135 K2, KLIB: Classes are still sorted before serializing them to metadata
• KT-65866 [K/N] Fix java.lang.IllegalArgumentException: Unknown visibility: unknown
• KT-66005 K2: "Should not be here: class org.jetbrains.kotlin.fir.expressions.impl.FirResolvedReifiedParameterReferenceImpl" on incorrect comparison of reified type parameter
• KT-65840 [K2] Initializer type mismatch: expected 'Type', actual 'Type'
• KT-65002 K2: Incorrect suspend conversion if argument is an aliased functional type
• KT-65984 K2 scripting: failure on processing SUPPRESS annotation in the last script statement
• KT-65680 K2: Class redeclaration leads to BackendException during IR fake override builder
• KT-66028 K2: Convert FirExpectActualDeclarationChecker to platform checker
• KT-65592 K2: IrFakeOverrideBuilder: ISE "should not be called" on diamond hierarchy with explicit dependency on annotations.jar
• KT-65277 IrFakeOverrideBuilder: NPE from IrJavaIncompatibilityRulesOverridabilityCondition.doesJavaOverrideHaveIncompatibleValueParameterKinds
• KT-65983 K2 gradle scripting: "'val' cannot be reassigned" errors
• KT-60452 K2 Scripting: implement overriding of the script params
• KT-65975 K2: Implicit receivers resolution order in K2 scripting
• KT-60249 K2: No unit coercion generated for loops body
• KT-65937 K2: order of enum entries changed
• KT-65933 K2: Type missmatch in arrays in annotations
• KT-65343 JVM IR: Source parameter is lost when copying with DeepCopyIrTreeWithSymbols
• KT-65103 K2: IllegalArgumentException: IrErrorCallExpressionImpl(5388, 5392, "Unresolved reference: R?C|/cont|") found but error code is not allowed
• KT-62788 K2: difference in annotation inheritance in overriddings
• KT-65669 K2: ClassCastException class FirDeclarationStatusImpl cannot be cast to class FirResolvedDeclarationStatus
• KT-65493 IrFakeOverrideBuilder: difference in return type for intersection with raw type
• KT-65207 IrFakeOverrideBuilder - nullable return type for intersection override
• KT-65972 Fix problems related to Unknown visibility in [FP] intellij
• KT-65246 K2: Overiding java method that takes vararg parameter causes WRONG_NULLABILITY_FOR_JAVA_OVERRIDE warning
• KT-59883 K2: Disappeared INVALID_IF_AS_EXPRESSION
• KT-57300 K2: subclass of MutableCollection with primitive element type has methods with boxed type
• KT-58476 Context receivers: "No mapping for symbol: VALUE_PARAMETER" with context-receiver inside suspended lambda calling another suspended function
• KT-52213 Context receivers: "No mapping for symbol: VALUE_PARAMETER" caused by contextual suspending function type with receiver
• KT-56545 Fix incorrect functions mangling in JVM backend in case of accidental clashing overload in a Java subclass
• KT-13650 Right-hand side of a safe assignment is not always evaluated, which can fool smart-casts
• KT-61823 K2: Render list of declarations in diagnostic messages with linebreak as separator
• KT-65302 IrFakeOverrideBuilder - missing @EnhancedNullability
• KT-65241 K2: [LT] Compiler crash on assignment expression with incorrect lvalue
• KT-60006 K2: Disappeared EXPRESSION_EXPECTED
• KT-65817 K2: Check if callable reference vararg adaption can be affected by primitive type aliases
• KT-62847 K2: Introduce FIR node for SAM conversion
• KT-65920 K2: no field for delegation is created
• KT-65487 K2: Different fake overrides and false positive NOTHING_TO_OVERRIDE for intersection/override with Collection.remove
• KT-65460 Don't compare order of functions in IR dump
• KT-64276 [K/N][K2] K2 behaviorial difference with inconsistent inheritance of ObjCName
• KT-65572 [K/N][K2] INCOMPATIBLE_OBJC_NAME_OVERRIDE error message changed from K1
• KT-63420 Prevent weakening visibility in implicit overrides
• KT-64635 K2: "KotlinIllegalArgumentExceptionWithAttachments: Expected expression 'FirAnonymousFunctionExpressionImpl' to be resolved" when provideDelegate is extension of function with receiver
• KT-63879 K2: Redundant flag declaresDefaultValue for parameter of function inherited from delegate
• KT-56744 Prepare language committee ticket about DFA/Smart-cast related changes in K2
• KT-65790 K2: Move check for private-to-this visibility into checker
• KT-65551 K2: Property redeclaration on native compilation leads to NotImplementedError
• KT-65770 K2: Diagnostic rendering of vararg Foo parameter produces vararg Array<Foo>
• KT-65555 K2: must override 'spliterator' because it inherits multiple implementations for it
• KT-59921 K2: Disappeared NULL_FOR_NONNULL_TYPE
• KT-65290 K2: No override for FUN DEFAULT_PROPERTY_ACCESSOR
• KT-19446 False positive "Smart cast to 'Foo' is impossible" due to same variable names in different closures
• KT-65337 K2: False positive UNRESOLVED_REFERENCE when lambda labeled by illegal label and operator-invoked
• KT-65448 K2: fake overrides are not generated for 'containsAll', 'removeAll', 'retainAll' if inherited from raw type
• KT-65298 K2: not nullable return type and parameter for raw types
• KT-63377 K2: conflict between type parameter and nested class
• KT-63286 K2: Top-level properties in scripts are missing initialization checks
• KT-59744 K2: false negative VAL_REASSIGNMENT in case of reassignment inside custom setter
• KT-58579 K2: false-positive new inference error on invoking a generic function on Java wildcard type bounded by raw-typed Java inner class
• KT-60258 Support java-kotlin interop for @SubclassOptInRequired
• KT-60262 Support for inter-module interaction for @SubclassOptInRequired
• KT-62878 K2: missing implicit coercion to unit
• KT-59715 K2: Check behaviour of property + operator in operator position
• KT-63441 IrFakeOverrideBuilder: "accidental override" when implementing a Java function taking an array parameter
• KT-65706 K2: IrFakeOverrideBuilder: ISE "Fake override should have at least one overridden descriptor" on J-K-J-K hierarchy with interface delegation
• KT-61362 K2: Properties/fields are missing from system libraries
• KT-63344 K2: False positive ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED
• KT-58845 K2: SAM checker can run incorrectly in presence of an expect supertype
• KT-61843 K2: Missing TYPE_MISMATCH for nested array literals
• KT-62752 expect-actual matcher/checker: return type must be "checking" incompatibility
• KT-59887 K2: Disappeared ACTUAL_MISSING
• KT-65604 K2: INAPPLICABLE_JVM_NAME: effective modality
• KT-65637 Prepare documentation for PCLA implementation
• KT-65341 K2: "Cannot find cached type parameter by FIR symbol" caused by not-null assertion operator inside string in throw
• KT-49283 Support contribution type info from a nested builder inference call
• KT-64077 K2: Builder inference ignores constraints from nested builder inference
• KT-49160 Couldn't infer a type argument through several builder inference calls broken by a local class
• KT-63827 K2: Array += desugaring doesn't have origin
• KT-65057 K2: Wrong type inferred in code with heavy use of generics
• KT-63514 ISE “Inline class types should have the same representation: [I != I” during compilation on submitting UIntArray to vararg
• KT-61088 K2: return types of non-last-expression calls to @PolymorphicSignature methods inside try-expressions don't resolve to void when required
• KT-62476 K2: Enable building fake overrides by ir on non-JVM targets
• KT-59839 Prohibit header and impl in MPP
• KT-61310 K2: "Not enough information to infer type variable R" for transformLatest
• KT-63733 Builder-style type inference can't resolve to extension overloads when they're more applicable than member ones
• KT-57707 K1: inconsistent TYPE_MISMATCH in builder inference
• KT-55057 Builder inference changes behaviour sporadically based on BI annotation on unrelated call
• KT-60663 Builder inference does not work inside a nested unrelated builder inference lambda
• KT-53639 TYPE_MISMATCH: compiler can't infer the list's type when using buildList {} builder or Collection#isNotEmpty
• KT-60291 K2: "IllegalStateException: Cannot serialize error type: ERROR CLASS: Cannot infer argument for type parameter T" during FIR serialization
• KT-65033 K2: Fir2LazyIr: Lazy type aliases not supported
• KT-57709 Inconsistent extension function call resolution in builder inference
• KT-53740 Builder inference with multiple lambdas leads to unsound type
• KT-60877 Builder inference from the null literal results in Nothing instead of Nothing? for producing positions of the postponed type variable
• KT-53553 Builder inference: inconsistent types in different lambda scopes
• KT-54400 K2: builder inference does not work with assignments of literals to member properties
• KT-63840 Builder inference fails on calls to identity-shaped functions with postponed type variables inside select-constructions
• KT-65262 K2: Exception in DFA for combination of try-finally + PCLA + DI
• KT-58169 K2: make equals bounded smart casts work the same as in K1
• KT-64967 K2: false positive TYPE_MISMATCH with generic type parameters
• KT-64102 K2: Missing (disappeared in this case) DELEGATE_USES_EXTENSION_PROPERTY_TYPE_PARAMETER_ERROR
• KT-63988 K2: Reflection cannot find type of local class of local class
• KT-63901 K2: Different naming of inner class in metadata
• KT-63655 K2: incorrect short class name in metadata for anonymous object inside a local class
• KT-59664 Inline modifier can be added to a constructor parameter, but it does not have any effect
• KT-59418 K2: Missing DUPLICATE_PARAMETER_NAME_IN_FUNCTION_TYPE
• KT-63612 K2: Class is not abstract and does not implement abstract member
• KT-63737 Wasm: revise external declaration FE checker for WASI mode
• KT-59782 K2: Forbid local delegated properties with private accessors in public inline functions
• KT-65482 K2: NoSuchFieldError due to using unboxed type
• KT-61182 Unit conversion is accidentally allowed to be used for expressions on variables + invoke resolution
• KT-62998 Forbid assignment of a nullable to a not-null Java field as a selector of unsafe assignment
• KT-63208 K2: Implement deprecation cycle and fix missing errors for error-level nullable arguments of warning-level Java types
• KT-57600 Forbid overriding of Java method with raw-typed parameter with generic typed parameter
• KT-63147 K2: False negative DSL_SCOPE_VIOLATION when member is annotated with @LowPriorityInOverloadResolution
• KT-62134 K2: handle non-simple types during FirStatusResolver.isPrivateToThis check
• KT-42020 Psi2ir: IllegalStateException: "IrSimpleFunctionPublicSymbolImpl for public [...] is already bound" on generic function whose substitution leads to IdSignature clash

See the full 2.0.0 ChangeLog here - https://github.com/JetBrains/kotlin/blob/2.0.0/ChangeLog.md

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This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [org.jetbrains.kotlin:kotlin-maven-noarg](https://kotlinlang.org/) ([source](https://github.com/JetBrains/kotlin)) | build | major | `1.9.25` → `2.3.20` | | [org.jetbrains.kotlin:kotlin-maven-allopen](https://kotlinlang.org/) ([source](https://github.com/JetBrains/kotlin)) | build | major | `1.9.25` → `2.3.20` | --- ### Release Notes <details> <summary>JetBrains/kotlin (org.jetbrains.kotlin:kotlin-maven-noarg)</summary> ### [`v2.3.20`](https://github.com/JetBrains/kotlin/blob/HEAD/ChangeLog.md#2320) [Compare Source](https://github.com/JetBrains/kotlin/compare/v2.3.10...v2.3.20) ##### Analysis API. FIR ##### New Features - [`KT-78090`](https://youtrack.jetbrains.com/issue/KT-78090) Implement stubs support for new conditional returns and holdsIn contracts ##### Fixes - [`KT-82948`](https://youtrack.jetbrains.com/issue/KT-82948) 'FirRegularClass' expected as a containing declaration, got 'FirTypeAliasImpl' - [`KT-83467`](https://youtrack.jetbrains.com/issue/KT-83467) Package-level JSpecify annotations are ignored when coming from jars or libraries - [`KT-82057`](https://youtrack.jetbrains.com/issue/KT-82057) K2. Cannot infer type parameter 'R' in Ktor routing post() function with explicit response type - [`KT-82846`](https://youtrack.jetbrains.com/issue/KT-82846) AA: unresolved KtExpression.expressionType for the reference to the parameter with default value - [`KT-80485`](https://youtrack.jetbrains.com/issue/KT-80485) False positive UNRESOLVED\_REFERENCE on nested interface from super-super class in the super type position inside an anonymous object - [`KT-82772`](https://youtrack.jetbrains.com/issue/KT-82772) Flaky false positive deprecation warning on PersistentMap.put in Kotlin repo in IDE mode - [`KT-76487`](https://youtrack.jetbrains.com/issue/KT-76487) StdLibSourcesLazyDeclarationResolveTestGenerated.testWrappedInt is unstable - [`KT-82618`](https://youtrack.jetbrains.com/issue/KT-82618) Various tests are failing with NPE in kt-master after updating the compiler on 19.11.25 - [`KT-82076`](https://youtrack.jetbrains.com/issue/KT-82076) Error querying members of JavaClass created for SymbolLightClassForAnnotationClass during library analysis - [`KT-71596`](https://youtrack.jetbrains.com/issue/KT-71596) Include Js/Wasi checkers in AbstractLLFirDiagnosticsCollector - [`KT-82085`](https://youtrack.jetbrains.com/issue/KT-82085) No OUTER\_CLASS\_ARGUMENTS\_REQUIRED on type parameter bound in IDE - [`KT-81873`](https://youtrack.jetbrains.com/issue/KT-81873) Provide a way of including traces in phase JFR events - [`KT-71929`](https://youtrack.jetbrains.com/issue/KT-71929) Consider leaving the non-post-compute version at EnhancementSymbolsCache.enhancedFunctions ##### Analysis API. Infrastructure - [`KT-83173`](https://youtrack.jetbrains.com/issue/KT-83173) Analysis API Tests: Library names with RC versions aren't sanitised - [`KT-65140`](https://youtrack.jetbrains.com/issue/KT-65140) LL FIR: Implement AbstractFirPsiJsDiagnosticTest for LL FIR - [`KT-82212`](https://youtrack.jetbrains.com/issue/KT-82212) \[Analysis API, LL FIR] Implement AbstractDiagnosticsFirWasmTest and AbstractDiagnosticsFirWasmWasiTest for LL FIR ##### Analysis API. Light Classes - [`KT-82227`](https://youtrack.jetbrains.com/issue/KT-82227) Value classes should expose regular static methods ##### Analysis API. PSI - [`KT-81710`](https://youtrack.jetbrains.com/issue/KT-81710) 'KtTypeReference.getTypeText' does not account for 'suspend' modifier on suspend lambdas - [`KT-82258`](https://youtrack.jetbrains.com/issue/KT-82258) Prepare PSI for migration from context receivers to context parameters - [`KT-81074`](https://youtrack.jetbrains.com/issue/KT-81074) KDoc: List rendering is broken ##### Analysis API. Providers and Caches - [`KT-82449`](https://youtrack.jetbrains.com/issue/KT-82449) K2 IDE Analysis Freezes During Gradle Sync (Recursive Module Dependency Computation in KotlinModuleDependentsProviderBase.computeTransitiveDependents) - [`KT-82629`](https://youtrack.jetbrains.com/issue/KT-82629) 'collectDiagnostics' returns stale syntax error after editor fix - [`KT-74907`](https://youtrack.jetbrains.com/issue/KT-74907) Analysis API: Apply platform-based library module content restrictions consistently ##### Analysis API. Standalone - [`KT-81107`](https://youtrack.jetbrains.com/issue/KT-81107) AA: KtSourceModuleBuilder.sourceRoots doesn't works with symbolic links ##### Analysis API. Stubs and Decompilation - [`KT-82792`](https://youtrack.jetbrains.com/issue/KT-82792) Stub for KtValueArgumentList inside KtAnnotationEntry should be present if it is present in psi - [`KT-82527`](https://youtrack.jetbrains.com/issue/KT-82527) TypeClsStubBuilder.createFunctionTypeStub throws NullPointerException - [`KT-82558`](https://youtrack.jetbrains.com/issue/KT-82558) Deserialized DNN type should have a fully qualified Any - [`KT-81928`](https://youtrack.jetbrains.com/issue/KT-81928) KaArrayAnnotationValueImpl.values missing first element - [`KT-82139`](https://youtrack.jetbrains.com/issue/KT-82139) Support contracts for property accessors - [`KT-82198`](https://youtrack.jetbrains.com/issue/KT-82198) Support context parameters in contracts ##### Analysis API. Surface ##### New Features - [`KT-82851`](https://youtrack.jetbrains.com/issue/KT-82851) Property accessors should inherit KDoc from the parent property - [`KT-63339`](https://youtrack.jetbrains.com/issue/KT-63339) Analysis API: Provide a way to extract KDoc for symbols - [`KT-79070`](https://youtrack.jetbrains.com/issue/KT-79070) KaTypeProvider: add API to build a default type with star projections - [`KT-66566`](https://youtrack.jetbrains.com/issue/KT-66566) AA: api to create functional types - [`KT-66043`](https://youtrack.jetbrains.com/issue/KT-66043) KtTypeCreator doesn't provide a way for creating annotated types ##### Performance Improvements - [`KT-83694`](https://youtrack.jetbrains.com/issue/KT-83694) Provide psi-based implementation of `KaDeclarationSymbol#isExternal` - [`KT-70868`](https://youtrack.jetbrains.com/issue/KT-70868) KaSymbol: support PSI-only visibility and modality for the case without compiler plugins - [`KT-81627`](https://youtrack.jetbrains.com/issue/KT-81627) KaFirSymbolDeclarationOverridesProvider#processOverrides should process only relevant declarations ##### Fixes - [`KT-83152`](https://youtrack.jetbrains.com/issue/KT-83152) \[Analysis API, KDoc] Make class name links on constructors point to the class - [`KT-83695`](https://youtrack.jetbrains.com/issue/KT-83695) Deprecate `KaSymbolInformationProvider#{getter, setter}DeprecationStatus` - [`KT-82853`](https://youtrack.jetbrains.com/issue/KT-82853) Add a convenience property for testing declarations for effective external-ness - [`KT-83226`](https://youtrack.jetbrains.com/issue/KT-83226) Support "Collection literals" in the Analysis API - [`KT-83225`](https://youtrack.jetbrains.com/issue/KT-83225) Support "`@IntroduceAt`" in the Analysis API - [`KT-83222`](https://youtrack.jetbrains.com/issue/KT-83222) Support "Improve use-site defaulting for annotations" in the Analysis API - [`KT-83351`](https://youtrack.jetbrains.com/issue/KT-83351) Rename KaSession context parameter from 's' in bridges to something nicer - [`KT-83199`](https://youtrack.jetbrains.com/issue/KT-83199) Clarify API around extension points - [`KT-83074`](https://youtrack.jetbrains.com/issue/KT-83074) Inner enum entry class has incorrect default visibility - [`KT-82442`](https://youtrack.jetbrains.com/issue/KT-82442) Add Ka prefix to org.jetbrains.kotlin.analysis.api.symbols.AdditionalKDocResolutionProvider - [`KT-82443`](https://youtrack.jetbrains.com/issue/KT-82443) Add Ka prefix to org.jetbrains.kotlin.analysis.api.symbols.DebugSymbolRenderer - [`KT-82441`](https://youtrack.jetbrains.com/issue/KT-82441) Add Ka prefix to org.jetbrains.kotlin.analysis.api.compile.CodeFragmentCapturedValue - [`KT-82439`](https://youtrack.jetbrains.com/issue/KT-82439) Add Ka prefix to org.jetbrains.kotlin.analysis.api.components.DebuggerExtension - [`KT-82438`](https://youtrack.jetbrains.com/issue/KT-82438) Add Ka prefix to org.jetbrains.kotlin.analysis.api.components.DefaultTypeClassIds - [`KT-68577`](https://youtrack.jetbrains.com/issue/KT-68577) `asPsiType` and `mapTypeToJvmType`: leading delimiter for class in a root package - [`KT-81734`](https://youtrack.jetbrains.com/issue/KT-81734) MIssing "ARGUMENT\_TYPE\_MISMATCH" caused by self-referential generic type - [`KT-82856`](https://youtrack.jetbrains.com/issue/KT-82856) Redesign KotlinReferenceProviderContributor to make it extensible - [`KT-82615`](https://youtrack.jetbrains.com/issue/KT-82615) Clarify `KtReference#resolvesByNames` contract - [`KT-82534`](https://youtrack.jetbrains.com/issue/KT-82534) No expected type for property accessor without body - [`KT-82406`](https://youtrack.jetbrains.com/issue/KT-82406) Add a test to ensure that all top-level classes in the Analysis API Surface have `Ka` prefix - [`KT-78397`](https://youtrack.jetbrains.com/issue/KT-78397) investigate if there is a need in Extra support for the "various little features in contracts" - [`KT-74009`](https://youtrack.jetbrains.com/issue/KT-74009) Analysis API: Expose "isOverloadable" check for callable symbols similar to "OverloadChecker.isOverloadable" - [`KT-78399`](https://youtrack.jetbrains.com/issue/KT-78399) Check return value - check how we see from Java(+Stub) we see “annotated” signatures - [`KT-80357`](https://youtrack.jetbrains.com/issue/KT-80357) \[Analysis API] `KaType.enhancedType` doesn't enhance type parameters - [`KT-73659`](https://youtrack.jetbrains.com/issue/KT-73659) Analysis API: The name of `KaType.enhancedType` is too general - [`KT-80545`](https://youtrack.jetbrains.com/issue/KT-80545) \[Analysis API] Deprecate `KaFunctionType.arity` - [`KT-77708`](https://youtrack.jetbrains.com/issue/KT-77708) K2 Mode: Potentially redundant smart cast highlighing when passing smartcasted expressions as arguments - [`KT-81264`](https://youtrack.jetbrains.com/issue/KT-81264) K2 AA: `KaValueParameterSymbol.hasDefaultValue` is false for overriding or actual functions - [`KT-81166`](https://youtrack.jetbrains.com/issue/KT-81166) Forbid the usage of KaSessionComponent implementation types directly - [`KT-74801`](https://youtrack.jetbrains.com/issue/KT-74801) Analysis API: Publish/subscribe to modification events with a single message bus topic ##### Backend. Native. Debug - [`KT-81741`](https://youtrack.jetbrains.com/issue/KT-81741) Native: stepping into data class hashCode in lldb goes to line 1 ##### Backend. Wasm ##### New Features - [`KT-81485`](https://youtrack.jetbrains.com/issue/KT-81485) \[Wasm] DebuggerCustomFormatters generation support for single module mode - [`KT-81483`](https://youtrack.jetbrains.com/issue/KT-81483) \[Wasm] Typescript generation support for single module mode - [`KT-81484`](https://youtrack.jetbrains.com/issue/KT-81484) \[Wasm] Dwarf generation support for single module mode ##### Performance Improvements - [`KT-83839`](https://youtrack.jetbrains.com/issue/KT-83839) K/Wasm: CMP. Load time on Safari significantly increased with Kotlin = 2.3.20-Beta1 - [`KT-81524`](https://youtrack.jetbrains.com/issue/KT-81524) Unnecessary Any-JsAny conversions are generated for external instanceofs ##### Fixes - [`KT-82732`](https://youtrack.jetbrains.com/issue/KT-82732) K/Wasm runtime crash when using fun reference: convertKotlinClosureToJsClosure - [`KT-82649`](https://youtrack.jetbrains.com/issue/KT-82649) K/Wasm: Rewrite StringBuilder to use JsString - [`KT-73240`](https://youtrack.jetbrains.com/issue/KT-73240) K/Wasm: consider using JS String Builtins proposal in String implementation for wasm-js target - [`KT-83995`](https://youtrack.jetbrains.com/issue/KT-83995) K/Wasm: 2.3.0 -> 2.3.20-Beta1 degradation in arrow tests - [`KT-82309`](https://youtrack.jetbrains.com/issue/KT-82309) K/Wasm: refactor \_initialize function - [`KT-70075`](https://youtrack.jetbrains.com/issue/KT-70075) Wasm: "OutOfMemoryError: GC overhead limit exceeded" during tests - [`KT-83046`](https://youtrack.jetbrains.com/issue/KT-83046) K/Wasm: don't use StringBuilder implicitly for string concatenations - [`KT-82645`](https://youtrack.jetbrains.com/issue/KT-82645) K/Wasm: wasmJs use js "String" for number2String conversion - [`KT-79937`](https://youtrack.jetbrains.com/issue/KT-79937) K/Wasm: support kotlin.js.nativeInvoke annotation - [`KT-67461`](https://youtrack.jetbrains.com/issue/KT-67461) Use new lowering phase creation API in Wasm backend - [`KT-83664`](https://youtrack.jetbrains.com/issue/KT-83664) Wasm: Colon and space are not sanitized in output file names - [`KT-65779`](https://youtrack.jetbrains.com/issue/KT-65779) JsExport declaration name clash - [`KT-82202`](https://youtrack.jetbrains.com/issue/KT-82202) \[Wasm] SourceMap generation support for single module mode - [`KT-82162`](https://youtrack.jetbrains.com/issue/KT-82162) \[Wasm] Run single module tests with standalone vm's - [`KT-81325`](https://youtrack.jetbrains.com/issue/KT-81325) \[Wasm] Remove string pool initialiser dependent code - [`KT-73238`](https://youtrack.jetbrains.com/issue/KT-73238) K/Wasm: stop using linear memory inside our code - [`KT-83025`](https://youtrack.jetbrains.com/issue/KT-83025) Wasm: Compose application is not loading - [`KT-73239`](https://youtrack.jetbrains.com/issue/KT-73239) K/Wasm: use JS String Builtins proposal to transfer strings to and from JS - [`KT-83194`](https://youtrack.jetbrains.com/issue/KT-83194) K/Wasm: create WasmIR test infrastructure - [`KT-65234`](https://youtrack.jetbrains.com/issue/KT-65234) K/Wasm Ensure that fp operations are aligned with other b-ends - [`KT-81856`](https://youtrack.jetbrains.com/issue/KT-81856) K/JS/Wasm interop: external instanceofs do not link in singleModule mode - [`KT-81610`](https://youtrack.jetbrains.com/issue/KT-81610) \[Wasm] Add CLI test for performance metrics for klibs->binary scenario - [`KT-81550`](https://youtrack.jetbrains.com/issue/KT-81550) Incorrect generation of .wat files - [`KT-71533`](https://youtrack.jetbrains.com/issue/KT-71533) K/Wasm + K2: no error on KClass::qualifiedName usages ##### Compiler ##### New Features - [`KT-75736`](https://youtrack.jetbrains.com/issue/KT-75736) Enable reading/writing annotations in metadata on JVM by default - [`KT-79330`](https://youtrack.jetbrains.com/issue/KT-79330) Implement the first version of inference for Collection Literals - [`KT-83401`](https://youtrack.jetbrains.com/issue/KT-83401) Collection literals: support different types of expected types for CL - [`KT-55548`](https://youtrack.jetbrains.com/issue/KT-55548) JSR-305: Overload resolution ambiguity: Platform Types vs Kotlin Types - [`KT-74860`](https://youtrack.jetbrains.com/issue/KT-74860) Support Unit coercion (incl. fun refs) in unused return value checker - [`KT-13968`](https://youtrack.jetbrains.com/issue/KT-13968) Support vertx nullable annotation - [`KT-79656`](https://youtrack.jetbrains.com/issue/KT-79656) Use `org.jetbrains.annotations.UnmodifiableView` and/or `org.jetbrains.annotations.Unmodifiable` to infer read-only types for Java entities - [`KT-81684`](https://youtrack.jetbrains.com/issue/KT-81684) Implement explicit passing of context arguments using named syntax \[TEST\_ONLY] - [`KT-80492`](https://youtrack.jetbrains.com/issue/KT-80492) Checkers for operator `of` - [`KT-82638`](https://youtrack.jetbrains.com/issue/KT-82638) Collection literals: resolve to factory functions for standard library classes - [`KT-82467`](https://youtrack.jetbrains.com/issue/KT-82467) Improve binary and JVM compatibility by generating bridges for abstract interface methods - [`KT-82655`](https://youtrack.jetbrains.com/issue/KT-82655) Bridges generated for non-fake overrides shall include annotations from target methods - [`KT-74223`](https://youtrack.jetbrains.com/issue/KT-74223) Move Kotlin/Native TestProcessor phase to the first phase - [`KT-27090`](https://youtrack.jetbrains.com/issue/KT-27090) Support contracts in getter and setter for top-level extension properties - [`KT-74809`](https://youtrack.jetbrains.com/issue/KT-74809) Support unnamed local variables - [`KT-45683`](https://youtrack.jetbrains.com/issue/KT-45683) Allow generics in contract type assertions ##### Performance Improvements - [`KT-81974`](https://youtrack.jetbrains.com/issue/KT-81974) Do not eagerly initialize reflection for KProperty objects for delegated properties - [`KT-83697`](https://youtrack.jetbrains.com/issue/KT-83697) Native: increased bitcode produced with enabled safe casts - [`KT-83036`](https://youtrack.jetbrains.com/issue/KT-83036) Native: too many casts emitted with -Xgeneric-safe-casts=true - [`KT-80061`](https://youtrack.jetbrains.com/issue/KT-80061) Compiler (or IDEA) hangs due to importing large Kotlin reflect functions (e.g. KFunction999999999) - [`KT-68592`](https://youtrack.jetbrains.com/issue/KT-68592) Investigate performance implications of enabling -Xjvm-default for ir.tree module - [`KT-73687`](https://youtrack.jetbrains.com/issue/KT-73687) Inefficient KtCommonFile#getFileAnnotationList - [`KT-71673`](https://youtrack.jetbrains.com/issue/KT-71673) Consider making EnhancementSymbolsCache. enhancedFunctions using simple cache ##### Fixes - [`KT-84773`](https://youtrack.jetbrains.com/issue/KT-84773) Annotations not persisted in IR for internal external functions - [`KT-78783`](https://youtrack.jetbrains.com/issue/KT-78783) K2: absence of warning for KTLC-284 migration - [`KT-81553`](https://youtrack.jetbrains.com/issue/KT-81553) INITIALIZER\_TYPE\_MISMATCH and ASSIGNMENT\_TYPE\_MISMATCH is reported on the entire initializer - [`KT-83395`](https://youtrack.jetbrains.com/issue/KT-83395) Kotlin/Native 2.3.0 iOS release framework fails with Invalid LLVM module (PHI node type mismatch) - [`KT-84620`](https://youtrack.jetbrains.com/issue/KT-84620) Incorrect optimization of property delegation - [`KT-81567`](https://youtrack.jetbrains.com/issue/KT-81567) Add a use-site warning if a `@DslMarker`-marked annotation is used on entities where it is a no-op - [`KT-81700`](https://youtrack.jetbrains.com/issue/KT-81700) flaky overload resolution behaviors (false-positive errors, different final candidates, compile-time failures) - [`KT-83372`](https://youtrack.jetbrains.com/issue/KT-83372) compileDebugKotlinAndroid hangs in 2.3.0 with SQLDelight - [`KT-82579`](https://youtrack.jetbrains.com/issue/KT-82579) Update specificity rule for context parameters - [`KT-83590`](https://youtrack.jetbrains.com/issue/KT-83590) Some explicit backing fields must still be considered private-to-this - [`KT-83849`](https://youtrack.jetbrains.com/issue/KT-83849) False-positive NULLABILITY\_MISMATCH\_BASED\_ON\_JAVA\_ANNOTATIONS for `Optional.orElse(null)` call - [`KT-84192`](https://youtrack.jetbrains.com/issue/KT-84192) "Member overrides different '`@Throws`' filter from" caused by overriding in different module - [`KT-72994`](https://youtrack.jetbrains.com/issue/KT-72994) K2: Remove resolution to context receivers - [`KT-80247`](https://youtrack.jetbrains.com/issue/KT-80247) No diagnostic on unresolved type annotation from a dependency in an inferred type - [`KT-78730`](https://youtrack.jetbrains.com/issue/KT-78730) Move more LLVM-agnostic code to compiler/ir/backend.native or compiler/ir/backend.common - [`KT-74051`](https://youtrack.jetbrains.com/issue/KT-74051) Add a Continuation for tail-call suspend functions - [`KT-83984`](https://youtrack.jetbrains.com/issue/KT-83984) Data races around kotlinx.serialization plugin protobuf extensions registration - [`KT-83317`](https://youtrack.jetbrains.com/issue/KT-83317) ClassCastException: with cast kotlin.UInt to java.lang.Number when defining constant - [`KT-83031`](https://youtrack.jetbrains.com/issue/KT-83031) K2: unstable resolution of EnhancedNullability from type-use NotNull in presence of unused code - [`KT-83824`](https://youtrack.jetbrains.com/issue/KT-83824) Delegated property in Gradle DSL fails to compile - [`KT-83657`](https://youtrack.jetbrains.com/issue/KT-83657) \[K/N] Pre-codegen inline produces invalid bitcode - [`KT-81555`](https://youtrack.jetbrains.com/issue/KT-81555) Kotlin scripts: top-level name-based destructuring with \_ = prop fails with “exception while generating code” - [`KT-83314`](https://youtrack.jetbrains.com/issue/KT-83314) JSpecify `@NullMarked` changes Java equals(Object) to equals(Any?) causing override conflict in Kotlin 2.3 - [`KT-83282`](https://youtrack.jetbrains.com/issue/KT-83282) JvmExposeBoxed: Duplicate annotation interface kotlin.coroutines.jvm.internal.DebugMetadata in class %class%$1 for suspend inline class value - [`KT-78443`](https://youtrack.jetbrains.com/issue/KT-78443) Refactor session component initialization for multi-target compilation - [`KT-83427`](https://youtrack.jetbrains.com/issue/KT-83427) Arguments of plugin-generated annotations are serialized incorrectly - [`KT-83538`](https://youtrack.jetbrains.com/issue/KT-83538) OPERATOR\_RENAMED\_ON\_IMPORT is not reported for 'provideDelegate' operator - [`KT-83537`](https://youtrack.jetbrains.com/issue/KT-83537) OPERATOR\_RENAMED\_ON\_IMPORT is not reported for 'of' operator - [`KT-82721`](https://youtrack.jetbrains.com/issue/KT-82721) Inconsistent explicit backing fields behavior - [`KT-83589`](https://youtrack.jetbrains.com/issue/KT-83589) Explicit backing fields don't likely work with intersection overrides - [`KT-81951`](https://youtrack.jetbrains.com/issue/KT-81951) K2: Another false positive "Assigned value is never read" in composable function - [`KT-83588`](https://youtrack.jetbrains.com/issue/KT-83588) Explicit backing field is falsely accessible from a subclass via a substitution override - [`KT-82849`](https://youtrack.jetbrains.com/issue/KT-82849) Collection literals (minor): collection literal should only be resolved to operator - [`KT-83363`](https://youtrack.jetbrains.com/issue/KT-83363) VerifyError: "Bad type on operand stack" on multi-line suspending call with default parameter value since API version 2.4 - [`KT-83570`](https://youtrack.jetbrains.com/issue/KT-83570) K2: Resolve problematic IR when referencing Kotlin const from annotation in Java - [`KT-83362`](https://youtrack.jetbrains.com/issue/KT-83362) Starting from 2.3 DefaultImpls bridge functions deprecated with the level HIDDEN are no longer synthetic - [`KT-9182`](https://youtrack.jetbrains.com/issue/KT-9182) Java interoperability: Overload resolution ambiguity on Java's `@NotNull` and primitives - [`KT-83633`](https://youtrack.jetbrains.com/issue/KT-83633) Forbid inline functional context parameters in inline functions - [`KT-83449`](https://youtrack.jetbrains.com/issue/KT-83449) compile-time IR failure on smart cast information leaking from capturing closure - [`KT-82375`](https://youtrack.jetbrains.com/issue/KT-82375) Add `ATOMIC_REF_WITHOUT_CONSISTENT_IDENTITY` warning for any argument without consistent identity - [`KT-82524`](https://youtrack.jetbrains.com/issue/KT-82524) Access to a companion that requires opt-in is possible without opt-in - [`KT-83367`](https://youtrack.jetbrains.com/issue/KT-83367) VolatileFieldsLowering may emit wrong parameter types for atomic intrinsic calls - [`KT-83382`](https://youtrack.jetbrains.com/issue/KT-83382) K2: Unreachable method exit breaks MUST\_BE\_INITIALIZED checks for succeeding value declarations - [`KT-82211`](https://youtrack.jetbrains.com/issue/KT-82211) False positive SENSELESS\_NULL\_IN\_WHEN with nullable var - [`KT-83157`](https://youtrack.jetbrains.com/issue/KT-83157) ExplicitBackingFields: "Property with explicit backing field should be final" in 2.3.0 - [`KT-83269`](https://youtrack.jetbrains.com/issue/KT-83269) K2: Wrong types in IR for explicit backing fields - [`KT-68606`](https://youtrack.jetbrains.com/issue/KT-68606) Argument type mismatch, despite being from the same star-projected type - [`KT-83324`](https://youtrack.jetbrains.com/issue/KT-83324) Native: problem with loops handling in types computation pass - [`KT-83241`](https://youtrack.jetbrains.com/issue/KT-83241) K2: "NoSuchElementException: List is empty" with top-level destructuring declaration and lambda initializer - [`KT-82277`](https://youtrack.jetbrains.com/issue/KT-82277) Misleading `Inapplicable candidate(s): fun <K> WHEN_CALL(vararg branches: K): K` when a when expression branch contains an unresolved reference - [`KT-80839`](https://youtrack.jetbrains.com/issue/KT-80839) Get rid of an obsolete -Xcompile-builtins-as-part-of-stdlib flag once previous changes are bootstrapped - [`KT-82900`](https://youtrack.jetbrains.com/issue/KT-82900) Language Feature EnhancedBridgesGeneration - [`KT-82651`](https://youtrack.jetbrains.com/issue/KT-82651) Do not generate self-recursive bridges in JVM backend - [`KT-5486`](https://youtrack.jetbrains.com/issue/KT-5486) Better errors for integers with leading zero - [`KT-83185`](https://youtrack.jetbrains.com/issue/KT-83185) Kotlin repeatable annotations are incorrectly deserialized from bytecode - [`KT-82863`](https://youtrack.jetbrains.com/issue/KT-82863) `@NoInfer` regression since 2.2.20 - [`KT-82376`](https://youtrack.jetbrains.com/issue/KT-82376) Header mode: Index out of bounds when generating bodies of data class - [`KT-82311`](https://youtrack.jetbrains.com/issue/KT-82311) Header mode: Error expression when assigning function declaration to a property - [`KT-82408`](https://youtrack.jetbrains.com/issue/KT-82408) Header mode: Java files are not compiled successfully - [`KT-82378`](https://youtrack.jetbrains.com/issue/KT-82378) Header mode: Sequence contains no element matching the predicate - [`KT-82407`](https://youtrack.jetbrains.com/issue/KT-82407) Header mode: Backend Internal error: Exception during IR lowering - [`KT-81763`](https://youtrack.jetbrains.com/issue/KT-81763) Incorrect comparison result when using elvis ?: with nullable Long values - [`KT-83153`](https://youtrack.jetbrains.com/issue/KT-83153) Properly ignore contract statements in the Return Value Checker - [`KT-83076`](https://youtrack.jetbrains.com/issue/KT-83076) Don't report `WRONG_JS_INTEROP_TYPE` on expect types during metadata compilation - [`KT-78589`](https://youtrack.jetbrains.com/issue/KT-78589) "Class does not have member field" caused by delegation from a Java to Kotlin class - [`KT-82640`](https://youtrack.jetbrains.com/issue/KT-82640) K2: CCE on green code - [`KT-82684`](https://youtrack.jetbrains.com/issue/KT-82684) "Don't know how to compile annotation value ERROR\_EXPR" on incorrect array literal in annotation default arguments - [`KT-81948`](https://youtrack.jetbrains.com/issue/KT-81948) K2: ClassCastException: "java.lang.String cannot be cast to java.lang.Void" when calling `@Nullable` Java function - [`KT-82788`](https://youtrack.jetbrains.com/issue/KT-82788) false-positive duplicate JVM class name error in IJ monorepo - [`KT-82841`](https://youtrack.jetbrains.com/issue/KT-82841) "kotlin.NoWhenBranchMatchedException" in `when` with `!is` check & non-sealed class in the middle of hierarchy - [`KT-82844`](https://youtrack.jetbrains.com/issue/KT-82844) "when" with no branches does not evaluate subject (side effects ignored) - [`KT-81625`](https://youtrack.jetbrains.com/issue/KT-81625) Incorrect empty parameters parsing (comma is highlighted in red) - [`KT-81193`](https://youtrack.jetbrains.com/issue/KT-81193) K2: SOE from `AbstractTypeApproximator.approximateToSuperType` with local enum class - [`KT-65059`](https://youtrack.jetbrains.com/issue/KT-65059) Stack overflow when typechecking an Elvis expression with deeply generic values - [`KT-82555`](https://youtrack.jetbrains.com/issue/KT-82555) `@Deprecated`(HIDDEN)\` objects not skipped when resolving qualifiers - [`KT-82737`](https://youtrack.jetbrains.com/issue/KT-82737) Leaked type variable in diagnostic when top-level lambda with uninferred type parameter has non-functional expected type - [`KT-78019`](https://youtrack.jetbrains.com/issue/KT-78019) Change K1 API deprecation level from Warning to Error - [`KT-82683`](https://youtrack.jetbrains.com/issue/KT-82683) K2: FIR2IR: compile-time JVM codegen failure on an argument of function subtype for a KSuspendFunction parameter - [`KT-82671`](https://youtrack.jetbrains.com/issue/KT-82671) Do not report ignorability mismatch on override/actualization if the function returns Unit type - [`KT-82506`](https://youtrack.jetbrains.com/issue/KT-82506) Misleading compilation warning: "This class is not recommended for use in Kotlin. Use 'java.util.Map' instead" - [`KT-52498`](https://youtrack.jetbrains.com/issue/KT-52498) Test privateSuperType.kt is failing with caches enabled - [`KT-82336`](https://youtrack.jetbrains.com/issue/KT-82336) Header mode: Cannot infer argument for type parameter T - [`KT-69326`](https://youtrack.jetbrains.com/issue/KT-69326) Inference chooses controversial order to fix variables - [`KT-82545`](https://youtrack.jetbrains.com/issue/KT-82545) Handle data class with extra components in migration warning for name-based destructuring - [`KT-82303`](https://youtrack.jetbrains.com/issue/KT-82303) Improve UNSUPPORTED\_FEATURE message when compiler argument has a parameter - [`KT-81866`](https://youtrack.jetbrains.com/issue/KT-81866) K2: False positive ILLEGAL\_RESTRICTED\_SUSPENDING\_FUNCTION\_CALL caused by smart-casted `@RestrictsSuspension` receiver - [`KT-13412`](https://youtrack.jetbrains.com/issue/KT-13412) Improve error message on callable reference with expression of nullable type - [`KT-82466`](https://youtrack.jetbrains.com/issue/KT-82466) KotlinIllegalArgumentExceptionWithAttachment when return is used in explicit delegation expression - [`KT-82454`](https://youtrack.jetbrains.com/issue/KT-82454) Local types aren't approximated in public declaration types - [`KT-82487`](https://youtrack.jetbrains.com/issue/KT-82487) False positive REDUNDANT\_VISIBILITY\_MODIFIER inside private class - [`KT-82369`](https://youtrack.jetbrains.com/issue/KT-82369) \[K2 REPL] Crash in the serialization plugin backend with "unable to transform declaration" - [`KT-82243`](https://youtrack.jetbrains.com/issue/KT-82243) Usage of nested type aliases is forbidden despite the feature flag - [`KT-62900`](https://youtrack.jetbrains.com/issue/KT-62900) K2: Expected expression to be resolved during Fir2Ir - [`KT-81941`](https://youtrack.jetbrains.com/issue/KT-81941) IllegalArgumentException: class org.jetbrains.kotlin.psi.KtValueArgument is not a subtype of class org.jetbrains.kotlin.psi.KtExpression for factory POSITIONED\_VALUE\_ARGUMENT\_FOR\_JAVA\_ANNOTATION - [`KT-80741`](https://youtrack.jetbrains.com/issue/KT-80741) Fix rendering of inner classes with generic outer classes - [`KT-82331`](https://youtrack.jetbrains.com/issue/KT-82331) Do not propagate context parameters from classes to constructors - [`KT-77276`](https://youtrack.jetbrains.com/issue/KT-77276) K2: Wrong scope for annotation arguments for the parameters of a secondary constructor header - [`KT-77275`](https://youtrack.jetbrains.com/issue/KT-77275) Inconsistency between scopes for primary/secondary constructor headers - [`KT-15152`](https://youtrack.jetbrains.com/issue/KT-15152) Improve error message for unresolved reference for delegation specifier and primary constructor call - [`KT-81498`](https://youtrack.jetbrains.com/issue/KT-81498) Make Kotlin/Native stdlib in distribution reproducible - [`KT-81408`](https://youtrack.jetbrains.com/issue/KT-81408) Allow local-variable-target annotations on destructuring declarations - [`KT-82012`](https://youtrack.jetbrains.com/issue/KT-82012) Annotations without parentheses on full form of name-based destructuring don't work - [`KT-81915`](https://youtrack.jetbrains.com/issue/KT-81915) Exception when analysing 'when' expression with annotated expression as a subject - [`KT-78364`](https://youtrack.jetbrains.com/issue/KT-78364) Static methods are not generated for companion object JvmStatic property accessors with JvmExposeBoxed - [`KT-81838`](https://youtrack.jetbrains.com/issue/KT-81838) Prohibit usage of nested type aliases (from lib) for sources with LV < 2.3 - [`KT-81357`](https://youtrack.jetbrains.com/issue/KT-81357) Forbid compilation of code with explicit *root\_ide\_package* in CLI mode - [`KT-73138`](https://youtrack.jetbrains.com/issue/KT-73138) K2: "Assignment type mismatch" when class name is underscore`_` - [`KT-82169`](https://youtrack.jetbrains.com/issue/KT-82169) Add quotes to message of WRONG\_NUMBER\_OF\_TYPE\_ARGUMENTS - [`KT-78386`](https://youtrack.jetbrains.com/issue/KT-78386) JvmExposeBoxed (with no name) + JvmOverloads + JvmName produces ambiguity - [`KT-78358`](https://youtrack.jetbrains.com/issue/KT-78358) Propagated JvmExposeBoxed annotation doesn't copy JvmName argument - [`KT-81699`](https://youtrack.jetbrains.com/issue/KT-81699) Move native klib compilation to a separate module - [`KT-81692`](https://youtrack.jetbrains.com/issue/KT-81692) Decouple compilation of Native klib from the Native backend - [`KT-80673`](https://youtrack.jetbrains.com/issue/KT-80673) Consider forbidding/minimizing usages of ClassId.isLocal and CallableId.isLocal - [`KT-81376`](https://youtrack.jetbrains.com/issue/KT-81376) False negative UNEXPECTED\_TRAILING\_LAMBDA\_ON\_A\_NEW\_LINE & bad positioning - [`KT-81946`](https://youtrack.jetbrains.com/issue/KT-81946) false-positive JAVA\_CLASS\_ON\_COMPANION in case of an explicit companion reference - [`KT-74461`](https://youtrack.jetbrains.com/issue/KT-74461) K2: Render function types nicely - [`KT-81875`](https://youtrack.jetbrains.com/issue/KT-81875) NCDFE: kotlinx/coroutines/internal/intellij/IntellijCoroutines at :compiler:multiplatform-parsing:jvmTest - [`KT-49722`](https://youtrack.jetbrains.com/issue/KT-49722) Report NOT\_YET\_SUPPORTED\_IN\_INLINE for inherited default parameters with inline function - [`KT-81913`](https://youtrack.jetbrains.com/issue/KT-81913) Inapplicable candidate when vararg-adaption for callable reference might be used (array parameter) - [`KT-81841`](https://youtrack.jetbrains.com/issue/KT-81841) Inapplicable candidate when vararg-adaption for callable reference might be used (generic parameter) - [`KT-39697`](https://youtrack.jetbrains.com/issue/KT-39697) "Cannot infer type parameter" in map with java static or global method reference - [`KT-81896`](https://youtrack.jetbrains.com/issue/KT-81896) Improve RedundantCallOfConversionMethod inspection for `@UnsafeNumber` annotated typealiases - [`KT-66413`](https://youtrack.jetbrains.com/issue/KT-66413) Incorrect line mapping in suspendable code before suspend call without parameters - [`KT-80525`](https://youtrack.jetbrains.com/issue/KT-80525) Update IntelliJ SDK dependency to 251.27812.49 - [`KT-81808`](https://youtrack.jetbrains.com/issue/KT-81808) Setting hasDefaultValue = true in irValueParameter() crashes the compiler - [`KT-78927`](https://youtrack.jetbrains.com/issue/KT-78927) False positive 'USELESS\_JVM\_EXPOSE\_BOXED' - [`KT-81703`](https://youtrack.jetbrains.com/issue/KT-81703) Drop obsolete K1 frontend code from Kotlin/Native - [`KT-81698`](https://youtrack.jetbrains.com/issue/KT-81698) Decouple`SpecialBackendChecksTraversal` from Native backend - [`KT-81687`](https://youtrack.jetbrains.com/issue/KT-81687) Different LightTree and PSI outputs when annotated class-like declaration is used as an expression - [`KT-81302`](https://youtrack.jetbrains.com/issue/KT-81302) False positive: Type Mismatch caused by context parameters, lambdas, and generics - [`KT-81584`](https://youtrack.jetbrains.com/issue/KT-81584) IAE "Collection contains more than one matching element" in FirElementSerializer on contextual property with same name as primary value class property - [`KT-77237`](https://youtrack.jetbrains.com/issue/KT-77237) JvmExposeBoxed breaks compilation with a secondary constructor with value class - [`KT-81262`](https://youtrack.jetbrains.com/issue/KT-81262) False positive: Access declaration type exposure: during access to public function class from internal inline declaration - [`KT-80112`](https://youtrack.jetbrains.com/issue/KT-80112) Kotlin Debugger: “Cannot find local variable” on evaluating default lambda inside inline function - [`KT-76806`](https://youtrack.jetbrains.com/issue/KT-76806) K2: AIOOBE in FirEqualityCompatibilityChecker - [`KT-81693`](https://youtrack.jetbrains.com/issue/KT-81693) Introduce lightweight versions of KonanConfig and PhaseContext - [`KT-72446`](https://youtrack.jetbrains.com/issue/KT-72446) K/N: inline function's default values aren't lowered with caches - [`KT-81521`](https://youtrack.jetbrains.com/issue/KT-81521) Anonymous function in context parameters breaks parser - [`KT-80853`](https://youtrack.jetbrains.com/issue/KT-80853) Class reference in context parameters breaks parser - [`KT-81441`](https://youtrack.jetbrains.com/issue/KT-81441) Missing type checks when class has deeply generic supertype - [`KT-79116`](https://youtrack.jetbrains.com/issue/KT-79116) Wrong parameter arguments mapping (compiler skips empty arguments) - [`KT-81422`](https://youtrack.jetbrains.com/issue/KT-81422) False negative in full-form name-based destructuring: annotations before val/var not rejected - [`KT-80652`](https://youtrack.jetbrains.com/issue/KT-80652) K2: USELESS\_IS\_CHECK is not detected in `when` - [`KT-80049`](https://youtrack.jetbrains.com/issue/KT-80049) Mangle `ERROR_TYPE`s in diagnostics reported to user - [`KT-73786`](https://youtrack.jetbrains.com/issue/KT-73786) Evaluator: cannot evaluate inline methods with reified parameter - [`KT-75828`](https://youtrack.jetbrains.com/issue/KT-75828) Store backing field/delegate annotations and extension receiver annotations in metadata - [`KT-74572`](https://youtrack.jetbrains.com/issue/KT-74572) Context parameters: contracts don't work with context parameters - [`KT-42824`](https://youtrack.jetbrains.com/issue/KT-42824) FIR: false INAPPLICABLE\_CANDIDATE when using in variance on a Java class ##### Compose compiler - [`b/481953005`](https://issuetracker.google.com/issues/481953005), [`b/481769383`](https://issuetracker.google.com/issues/481769383) Cache stability inference results during session - [`b/481735904`](https://issuetracker.google.com/issues/481735904) Fix Compose codegen crash in inline function - [`b/479646393`](https://issuetracker.google.com/issues/479646393) Add groups to inline functions with two or more inline parameters - [`b/458234821`](https://issuetracker.google.com/issues/458234821) Disable Compose K1 tests on CI - [`b/456948687`](https://issuetracker.google.com/issues/456948687) Force resolution of declarations when looking up SAM functions in FIR - [`b/445426829`](https://issuetracker.google.com/issues/445426829) Add a diagnostic for `key` call with no arguments ##### IR. Actualizer - [`KT-82418`](https://youtrack.jetbrains.com/issue/KT-82418) KMP Separate Compilation: NPE caused by actualization of NsCalendar.getEra - [`KT-82313`](https://youtrack.jetbrains.com/issue/KT-82313) ACTUAL\_ANNOTATION\_CONFLICTING\_DEFAULT\_ARGUMENT\_VALUE checks throw `conflicting values in expected and actual annotations` ##### IR. Inlining ##### Fixes - [`KT-82017`](https://youtrack.jetbrains.com/issue/KT-82017) \[Inliner] Inline function overrides abstract method with default value - [`KT-80814`](https://youtrack.jetbrains.com/issue/KT-80814) \[IR Inliner] Space: jsBrowserProductionWebpack task failed with HookWebpackError - [`KT-83280`](https://youtrack.jetbrains.com/issue/KT-83280) Split `LibrarySpecialCompatibilityChecksTest` into pure JS and pure Wasm tests - [`KT-81766`](https://youtrack.jetbrains.com/issue/KT-81766) K/N: Recursive inline expect/actual causes StackOverflowError - [`KT-80953`](https://youtrack.jetbrains.com/issue/KT-80953) \[Inliner] Eliminate excessive IMPLICIT\_CAST after IR Inliner on 2nd stage. - [`KT-79899`](https://youtrack.jetbrains.com/issue/KT-79899) \[IR Inliner] Split single-module tests having `inline fun` into files - [`KT-83148`](https://youtrack.jetbrains.com/issue/KT-83148) KLIB inliner: Make both "inliner" language features to require Api Version = 2.3 - [`KT-80791`](https://youtrack.jetbrains.com/issue/KT-80791) classFunctionsAndFieldsWithCrossModuleInliner fails per-file with cross-module inliner - [`KT-80696`](https://youtrack.jetbrains.com/issue/KT-80696) Can not get instance of singleton 'Obj': No class found for symbol - [`KT-82065`](https://youtrack.jetbrains.com/issue/KT-82065) IR inliner: Inline function's default value argument may get wrong offsets in a temporary variable - [`KT-81753`](https://youtrack.jetbrains.com/issue/KT-81753) Review diagnosticReporters usage in pre-serialization lowerings - [`KT-80793`](https://youtrack.jetbrains.com/issue/KT-80793) Test `friendDependencyWithCrossModuleInliner` fails per-file with cross-module inliner - [`KT-80698`](https://youtrack.jetbrains.com/issue/KT-80698) \[IC]\[WASM] Mismatched file stats - [`KT-80697`](https://youtrack.jetbrains.com/issue/KT-80697) \[IC]\[JS per file] Mismatched rebuilt modules - [`KT-80660`](https://youtrack.jetbrains.com/issue/KT-80660) \[Inliner] Bodyless functions should not be inlined at 1st compilation stage - [`KT-79064`](https://youtrack.jetbrains.com/issue/KT-79064) Try to get rid of `TypeOfPostProcessor` ##### IR. Interpreter - [`KT-82161`](https://youtrack.jetbrains.com/issue/KT-82161) Enable Enum.name and KCallable.name to constant evaluation - [`KT-80646`](https://youtrack.jetbrains.com/issue/KT-80646) Enable unsigned conversion functions when bootstrapped compiler is available ##### IR. Tree - [`KT-82765`](https://youtrack.jetbrains.com/issue/KT-82765) Kotlin/Native: Internal compiler error when building DFG - [`KT-82829`](https://youtrack.jetbrains.com/issue/KT-82829) IR deserializer: Don't deserialize any cinterop fake overrides from Klibs - [`KT-83236`](https://youtrack.jetbrains.com/issue/KT-83236) PeopleInSpace\_mpp compilation error: The symbol table has been sealed - [`KT-81154`](https://youtrack.jetbrains.com/issue/KT-81154) \[IrValidator] Fine-tune IrVisibilityChecker on 2nd stage - [`KT-80243`](https://youtrack.jetbrains.com/issue/KT-80243) Support Name Based Destructuring in loop with withIndex() - [`KT-79436`](https://youtrack.jetbrains.com/issue/KT-79436) KLIB stdlib symbols loading: Drop all functions from SymbolFinder except for loading the whole collection of (potentially unbound) symbols by name - [`KT-79435`](https://youtrack.jetbrains.com/issue/KT-79435) KLIB stdlib symbols loading: Load symbols and and filter/map them lazily in BuiltinSymbolsBase hierarchy when accessed by IR - [`KT-69082`](https://youtrack.jetbrains.com/issue/KT-69082) Migrate maps of IR elements to IR attributes - [`KT-67457`](https://youtrack.jetbrains.com/issue/KT-67457) Introduce a way to simplify IR lowering phase creation ##### JVM. Reflection ##### New Features - [`KT-22265`](https://youtrack.jetbrains.com/issue/KT-22265) Support for inherited annotations ##### Performance Improvements - [`KT-84600`](https://youtrack.jetbrains.com/issue/KT-84600) Performance regression around Kotlin properties JVM reflection during instantiation ##### Fixes - [`KT-83608`](https://youtrack.jetbrains.com/issue/KT-83608) Kotlin-reflect: "Unknown origin of public abstract operator fun invoke(p1: P1, p2: P2): R" - [`KT-57357`](https://youtrack.jetbrains.com/issue/KT-57357) Reflection: "KotlinReflectionInternalError" when using `callBy` on constructor that has inline class parameter with nullable value - [`KT-83361`](https://youtrack.jetbrains.com/issue/KT-83361) "KotlinReflectionInternalError: Type parameter not found: 0" on super types with Kotlin 2.3.0 - [`KT-42199`](https://youtrack.jetbrains.com/issue/KT-42199) "KotlinReflectionInternalError: Unknown origin of public abstract operator fun invoke" on function reference to FunctionN.invoke - [`KT-81024`](https://youtrack.jetbrains.com/issue/KT-81024) Reflection: New KType implementation fails on arguments comparison for a Nothing type parameter - [`KT-83067`](https://youtrack.jetbrains.com/issue/KT-83067) Reflection: IAE "argument type mismatch" on callBy with vararg of generic type parameter with primitive upper bound - [`KT-82699`](https://youtrack.jetbrains.com/issue/KT-82699) Reflection: incorrect behavior of KFunction.isExternal for Java native methods - [`KT-82350`](https://youtrack.jetbrains.com/issue/KT-82350) Reflection: incorrect behavior of KType.javaType on a type obtained from KType.withNullability - [`KT-29203`](https://youtrack.jetbrains.com/issue/KT-29203) KType.javaType always returns void class for local delegated property - [`KT-81899`](https://youtrack.jetbrains.com/issue/KT-81899) Reflection: incorrect javaType for local delegated property setter return type - [`KT-82093`](https://youtrack.jetbrains.com/issue/KT-82093) Reflection: IAE from defaultType for inner class of generic class - [`KT-77312`](https://youtrack.jetbrains.com/issue/KT-77312) KotlinReflectionInternalError: "Container of deserialized member is not resolved" on computing type parameter captured in a local delegated property - [`KT-82316`](https://youtrack.jetbrains.com/issue/KT-82316) Reflection: type parameters of top-level declarations behave incorrectly - [`KT-81987`](https://youtrack.jetbrains.com/issue/KT-81987) Reflection: error when calling function in inline class with inherited default value - [`KT-81870`](https://youtrack.jetbrains.com/issue/KT-81870) Reflection: Error when calling function with default parameters and extension receiver - [`KT-81880`](https://youtrack.jetbrains.com/issue/KT-81880) Reflection: Error when calling function with default & context parameters - [`KT-81907`](https://youtrack.jetbrains.com/issue/KT-81907) Reflection: incorrect result when calling function with default values and context parameters - [`KT-81859`](https://youtrack.jetbrains.com/issue/KT-81859) Reflection: do not use descriptors in ValueClassAwareCaller - [`KT-81854`](https://youtrack.jetbrains.com/issue/KT-81854) Reflection: incorrect type for instance receiver of inner class constructor - [`KT-81855`](https://youtrack.jetbrains.com/issue/KT-81855) Reflection: IAE "object is not an instance of declaring class" on function with context and extension receiver of inline class - [`KT-81843`](https://youtrack.jetbrains.com/issue/KT-81843) Reflection: NPE on accessing property accessor returnType for Java field - [`KT-81588`](https://youtrack.jetbrains.com/issue/KT-81588) Reflection: KotlinReflectionInternalError "Inconsistent number of parameters" on calling contextual declaration with value class type in the signature - [`KT-81111`](https://youtrack.jetbrains.com/issue/KT-81111) Reflection: suspend function types are loaded incorrectly by the new implementation - [`KT-81206`](https://youtrack.jetbrains.com/issue/KT-81206) Reflection: non-substituted Function type in suspend function supertypes - [`KT-81804`](https://youtrack.jetbrains.com/issue/KT-81804) Reflection: remove support for multi-field value classes - [`KT-81664`](https://youtrack.jetbrains.com/issue/KT-81664) Reflection: IAE "argument type mismatch" on calling member extension with value class in the signature ##### JavaScript ##### New Features - [`KT-83454`](https://youtrack.jetbrains.com/issue/KT-83454) K/JS: Support ES6 classes in js() calls - [`KT-83455`](https://youtrack.jetbrains.com/issue/KT-83455) K/JS: Support ES6 default function arguments in js() calls - [`KT-83453`](https://youtrack.jetbrains.com/issue/KT-83453) K/JS: Support ES6 concise methods in js() calls - [`KT-83457`](https://youtrack.jetbrains.com/issue/KT-83457) K/JS: Support ES6 spread operators in js() calls - [`KT-83456`](https://youtrack.jetbrains.com/issue/KT-83456) K/JS: Support ES6 rest function parameters in js() calls - [`KT-54504`](https://youtrack.jetbrains.com/issue/KT-54504) K/JS: Support ECMAScript tagged string templates - [`KT-82327`](https://youtrack.jetbrains.com/issue/KT-82327) KJS: Export parameter names of function types if present in .d.ts files - [`KT-82371`](https://youtrack.jetbrains.com/issue/KT-82371) KJS: Generate more concrete TypeScript for members of an uninhabited enum ##### Performance Improvements - [`KT-16379`](https://youtrack.jetbrains.com/issue/KT-16379) KotlinJs - ArrayList get is now slow ##### Fixes - [`KT-64951`](https://youtrack.jetbrains.com/issue/KT-64951) Kotlin-Multiplatform does not allow JSExport of expect - [`KT-83528`](https://youtrack.jetbrains.com/issue/KT-83528) K/JS: Array holes in array literals are ignored in the new js() parser - [`KT-84134`](https://youtrack.jetbrains.com/issue/KT-84134) KJS/CMP: "IrLinkageError: Function 'get' can not be called: No function found for symbol" - [`KT-65802`](https://youtrack.jetbrains.com/issue/KT-65802) How to implement Interfaces in Javascript/Typescript? - [`KT-83830`](https://youtrack.jetbrains.com/issue/KT-83830) Relocate org.antlr.v4 to an internal package - [`KT-83572`](https://youtrack.jetbrains.com/issue/KT-83572) KJS/Wasm: Cannot access `@JsModule`-declared class from non-modular project - [`KT-83930`](https://youtrack.jetbrains.com/issue/KT-83930) Kotlin/JS: JsStatic on property of interface companion generates incorrect d.ts - [`KT-70986`](https://youtrack.jetbrains.com/issue/KT-70986) Add Swc into the compilation pipeline of Kotlin/JS - [`KT-78742`](https://youtrack.jetbrains.com/issue/KT-78742) Investigate the usage of the ANTLR-generated parser for the `js` function - [`KT-60554`](https://youtrack.jetbrains.com/issue/KT-60554) KJS: rethink JS\_\*\_NAME\_CLASH diagnostics - [`KT-82552`](https://youtrack.jetbrains.com/issue/KT-82552) KJS: "Non-abstract class does not implement inherited abstract member from class" errors in generated .d.ts - [`KT-82652`](https://youtrack.jetbrains.com/issue/KT-82652) KJS: Exported abstract inner classes can be constructed from TypeScript - [`KT-82542`](https://youtrack.jetbrains.com/issue/KT-82542) KJS: Inner class can be constructed from TypeScript without passing an outer instance - [`KT-82499`](https://youtrack.jetbrains.com/issue/KT-82499) KJS: Omit parameters in private constructors in .d.ts files - [`KT-41082`](https://youtrack.jetbrains.com/issue/KT-41082) KJS: 'Reflection is not supported on JavaScript target, so you won't be able to read this annotation in runtime' warning is inconvenient and misleading - [`KT-82279`](https://youtrack.jetbrains.com/issue/KT-82279) KJS: DCE removes external members overrides without reason - [`KT-52800`](https://youtrack.jetbrains.com/issue/KT-52800) KJS / IR: sealed interface with nested data classes not accessible - [`KT-67460`](https://youtrack.jetbrains.com/issue/KT-67460) Use new lowering phase creation API in JS backend - [`KT-82667`](https://youtrack.jetbrains.com/issue/KT-82667) Kotlin/JS: ESM TypeScript definitions for exported nested Enums do not compile - [`KT-82553`](https://youtrack.jetbrains.com/issue/KT-82553) KJS: Incorrect .d.ts generated for generic inner classes - [`KT-82263`](https://youtrack.jetbrains.com/issue/KT-82263) Implement exporting top-level properties in Analysis API-based TypeScript Export - [`KT-82362`](https://youtrack.jetbrains.com/issue/KT-82362) KJS: Incorrect types generated in .d.ts for JsName-annotated enum entry - [`KT-82262`](https://youtrack.jetbrains.com/issue/KT-82262) Implement exporting top-level functions in Analysis API-based TypeScript Export - [`KT-82144`](https://youtrack.jetbrains.com/issue/KT-82144) K/JS: 'meta' identifier usage in js() inline calls prevents expression from parsing - [`KT-82149`](https://youtrack.jetbrains.com/issue/KT-82149) K/JS: `new` calls without arguments produce exceptions in js() inline calls - [`KT-81730`](https://youtrack.jetbrains.com/issue/KT-81730) Optimize suspend functions compilations via JS generators - [`KT-79243`](https://youtrack.jetbrains.com/issue/KT-79243) \[JS] Drop K1-specific tests, testrunners and test directives ##### Klibs ##### New Features - [`KT-83101`](https://youtrack.jetbrains.com/issue/KT-83101) Implement experimental KLib ABI dump parser ##### Fixes - [`KT-82586`](https://youtrack.jetbrains.com/issue/KT-82586) Export in previous version (JS, Wasm): adjust the checker for incompatible Kotlin stdlib/compiler pairs - [`KT-84273`](https://youtrack.jetbrains.com/issue/KT-84273) \[Klib] Added IrOffsetsChecker broke backward klib compatibility - [`KT-80910`](https://youtrack.jetbrains.com/issue/KT-80910) \[Klib] Ensure serialized source coordinates are correct - [`KT-81955`](https://youtrack.jetbrains.com/issue/KT-81955) \[JS] Support testing of forward compatibility with export in previous version - [`KT-81957`](https://youtrack.jetbrains.com/issue/KT-81957) \[JS] Create a common Gradle test task - [`KT-82736`](https://youtrack.jetbrains.com/issue/KT-82736) False positive `IR_PRIVATE_CALLABLE_REFERENCED_BY_NON_PRIVATE_INLINE_FUNCTION_ERROR` on referenece to local declaration - [`KT-82758`](https://youtrack.jetbrains.com/issue/KT-82758) \[PL] Change the behavior of getting name of removed property - [`KT-81470`](https://youtrack.jetbrains.com/issue/KT-81470) Simplify inline function deserialization after the bootstrap update - [`KT-81466`](https://youtrack.jetbrains.com/issue/KT-81466) Enable KlibAnnotationsInMetadata by default in LV 2.5 - [`KT-82208`](https://youtrack.jetbrains.com/issue/KT-82208) K/Wasm: allow using newer stdlib with older compiler - [`KT-83328`](https://youtrack.jetbrains.com/issue/KT-83328) kotlin-wasm-benchmarks: Compilation errors due to missing KLIB dependencies - [`KT-83071`](https://youtrack.jetbrains.com/issue/KT-83071) Failure on Native Nightly - [`KT-78365`](https://youtrack.jetbrains.com/issue/KT-78365) \[PL] Change the behavior of getting name of removed function - [`KT-81977`](https://youtrack.jetbrains.com/issue/KT-81977) Klib compatibility tests: Implement sanity checks - [`KT-81410`](https://youtrack.jetbrains.com/issue/KT-81410) Klib metadata: migrate to using the common annotations instead of klib-specific extensions in kotlinx-metadata-klib - [`KT-82577`](https://youtrack.jetbrains.com/issue/KT-82577) Don't use KLIB resolver in the KLIB tool - [`KT-82213`](https://youtrack.jetbrains.com/issue/KT-82213) IR linker doesn't complain when a private value class constructor is used from another module - [`KT-81003`](https://youtrack.jetbrains.com/issue/KT-81003) KLIBs: Eliminate excessive implicit casts in common prefix on the 1st stage - [`KT-81670`](https://youtrack.jetbrains.com/issue/KT-81670) K/N: Many Section still use none cacheable zip when Xklib-zip-file-accessor-cache-limit flag set - [`KT-81954`](https://youtrack.jetbrains.com/issue/KT-81954) \[JS] All forward compatibility tests fail - [`KT-81709`](https://youtrack.jetbrains.com/issue/KT-81709) \[KLIB Reproducibility] KLIB zip file generation is non-deterministic due to unsorted file system traversal - [`KT-81474`](https://youtrack.jetbrains.com/issue/KT-81474) \[Tests]\[Klibs] Migrate Klib evolution tests to PL tests engine ##### Language Design - [`KT-83009`](https://youtrack.jetbrains.com/issue/KT-83009) Exposing of non-exportable API from interfaces - [`KT-73502`](https://youtrack.jetbrains.com/issue/KT-73502) Context parameters: it is not possible to declare local function with a context ##### Libraries ##### New Features - [`KT-81997`](https://youtrack.jetbrains.com/issue/KT-81997) Method to create a detached copy of a Map entry - [`KT-79093`](https://youtrack.jetbrains.com/issue/KT-79093) Expose FirResolvedStatus.hasMustUseReturnValue in kotlin-metadata ##### Performance Improvements - [`KT-75801`](https://youtrack.jetbrains.com/issue/KT-75801) Optimize Array to list conversion using array copy instead of a loop - [`KT-82038`](https://youtrack.jetbrains.com/issue/KT-82038) K/N: iterating over Array.asList is slower compared to ArrayList ##### Fixes - [`KT-78115`](https://youtrack.jetbrains.com/issue/KT-78115) Investigate the current situation with 22 `kotlin.context` standard library overloads - [`KT-82363`](https://youtrack.jetbrains.com/issue/KT-82363) Add `assertIs` to the list of ignorable functions - [`KT-80666`](https://youtrack.jetbrains.com/issue/KT-80666) K/N and K/Wasm: Regex: unassigned category is excluded from other chars - [`KT-80665`](https://youtrack.jetbrains.com/issue/KT-80665) K/N and K/Wasm: Regex: unicode category Symbol matches some punctuation marks - [`KT-78089`](https://youtrack.jetbrains.com/issue/KT-78089) K/N: Regex: Quantified groups matching is causing a stack overflow - [`KT-82783`](https://youtrack.jetbrains.com/issue/KT-82783) HashMap (K/N, Wasm), MapBuilder (all targets) duplicate keys - [`KT-52400`](https://youtrack.jetbrains.com/issue/KT-52400) Deprecate `@BuilderInference` - [`KT-80786`](https://youtrack.jetbrains.com/issue/KT-80786) Annotate kotlin-stdlib-jdk7/8 with `@IgnorableReturnValue` - [`KT-83181`](https://youtrack.jetbrains.com/issue/KT-83181) Remove `@IgnorableReturnValue` from contract DSL functions - [`KT-82033`](https://youtrack.jetbrains.com/issue/KT-82033) Array\<Array<T>>.flatten fails with obscure error when total length exceeds List's size limit - [`KT-83290`](https://youtrack.jetbrains.com/issue/KT-83290) Remove unnecessary ExperimentalTime annotation from Uuid functions - [`KT-83026`](https://youtrack.jetbrains.com/issue/KT-83026) Specify compareTo behavior for Boolean - [`KT-82868`](https://youtrack.jetbrains.com/issue/KT-82868) Restore accidentally deleted JS-specific note in ArrayList documentation - [`KT-81563`](https://youtrack.jetbrains.com/issue/KT-81563) Document kotlin.collections.HashMap and HashSet - [`KT-81562`](https://youtrack.jetbrains.com/issue/KT-81562) Document kotlin.collections.ArrayList - [`KT-60535`](https://youtrack.jetbrains.com/issue/KT-60535) Mark SubclassOptInRequired and RequiresOptIn with MustBeDocumented - [`KT-64649`](https://youtrack.jetbrains.com/issue/KT-64649) Add explanation to "A compileOnly dependency is used in the Kotlin/Native target" warning message ##### Native - [`KT-83542`](https://youtrack.jetbrains.com/issue/KT-83542) Switch the default GC back to PMCS in 2.3.20-RC - [`KT-82387`](https://youtrack.jetbrains.com/issue/KT-82387) Kotlin <-> Xcode compatibility issue - [`KT-75806`](https://youtrack.jetbrains.com/issue/KT-75806) KN Compiler with debug build can not produce executable with debug info - [`KT-81828`](https://youtrack.jetbrains.com/issue/KT-81828) Update exception messages regarding disabling native cache - [`KT-81495`](https://youtrack.jetbrains.com/issue/KT-81495) Consider making Kotlin/Native distribution compiler cache reproducible - [`KT-81501`](https://youtrack.jetbrains.com/issue/KT-81501) Make Kotlin/Native distribution runtime .bc and fingerprint reproducible - [`KT-80790`](https://youtrack.jetbrains.com/issue/KT-80790) 'Argument list too long' error when using dynamic\_caches - [`KT-48566`](https://youtrack.jetbrains.com/issue/KT-48566) ExceptionInInitializerError when configuring Gradle project with kotlin-multiplatform plugin on a host unsupported by Kotlin/Native ##### Native. Build Infrastructure - [`KT-82886`](https://youtrack.jetbrains.com/issue/KT-82886) KonanTarget's clinit causes deadlock - [`KT-81345`](https://youtrack.jetbrains.com/issue/KT-81345) Temporary turned off Swift Export execution tests - [`KT-80869`](https://youtrack.jetbrains.com/issue/KT-80869) Extract per-module test generators for Native tests - [`KT-82028`](https://youtrack.jetbrains.com/issue/KT-82028) Kotlin/Native: move runtime building flags to runtime building code - [`KT-81500`](https://youtrack.jetbrains.com/issue/KT-81500) Make Kotlin/Native distribution shared libraries reproducible - [`KT-72011`](https://youtrack.jetbrains.com/issue/KT-72011) Kotlin/Native: consider building platform libraries with bootstrap compiler - [`KT-81666`](https://youtrack.jetbrains.com/issue/KT-81666) Kotlin/Native: build stdlib with the bootstrap compiler ##### Native. C and ObjC Import - [`KT-79741`](https://youtrack.jetbrains.com/issue/KT-79741) Native: implement type checking against Objective-C protocols without `protocolGetter` - [`KT-83039`](https://youtrack.jetbrains.com/issue/KT-83039) Native: mark header-defined functions and globals unavailable with `-Xccall-mode direct` - [`KT-82200`](https://youtrack.jetbrains.com/issue/KT-82200) Native: implement type checking against Objective-C protocols with `objc_runtime_name` without `protocolGetter` - [`KT-82669`](https://youtrack.jetbrains.com/issue/KT-82669) Kotlin/Native: cinterop tests failure with no class for metaclass - [`KT-79742`](https://youtrack.jetbrains.com/issue/KT-79742) Native: import C global variables without C wrappers - [`KT-81937`](https://youtrack.jetbrains.com/issue/KT-81937) Native: switch cinterop to `-Xccall-mode both` by default for custom cinterop klibs - [`KT-81548`](https://youtrack.jetbrains.com/issue/KT-81548) Native: compiler doesn't sanitize CCall.Direct symbol names in C stubs - [`KT-81538`](https://youtrack.jetbrains.com/issue/KT-81538) Native: InteropBridgesNameInventor doesn't handle legitimate '$' characters in function names - [`KT-81017`](https://youtrack.jetbrains.com/issue/KT-81017) Native: compiler can't call CCall.Direct with '$' in the symbol name ##### Native. ObjC Export - [`KT-82160`](https://youtrack.jetbrains.com/issue/KT-82160) K/N: bridge for fake override is not built but requested - [`KT-83736`](https://youtrack.jetbrains.com/issue/KT-83736) Objective-C export with `objcExportBlockExplicitParameterNames` generates invalid block signature when lambda parameter is named `id` - [`KT-83014`](https://youtrack.jetbrains.com/issue/KT-83014) Native: experimental support for generating an NS\_ENUM in addition to an Objective-C class for Kotlin classes - [`KT-76637`](https://youtrack.jetbrains.com/issue/KT-76637) ObjCExport: K1 + K2 integration test ##### Native. Runtime - [`KT-82077`](https://youtrack.jetbrains.com/issue/KT-82077) Kotlin/Native: in runtime make main module depend on mm module ##### Native. Runtime. Memory - [`KT-82635`](https://youtrack.jetbrains.com/issue/KT-82635) Enable CMS GC by default in 2.3.20-Beta1 - [`KT-83470`](https://youtrack.jetbrains.com/issue/KT-83470) Potential race condition in TryRequestThreadsSuspension due to initialization order - [`KT-83549`](https://youtrack.jetbrains.com/issue/KT-83549) Provide an experimental Platform property which returns information about object allocation mode - [`KT-83535`](https://youtrack.jetbrains.com/issue/KT-83535) Typo in out-of-memory error message - [`KT-81152`](https://youtrack.jetbrains.com/issue/KT-81152) Kotlin/Native: deprecate isMemoryLeakCheckerActive - [`KT-81156`](https://youtrack.jetbrains.com/issue/KT-81156) Kotlin/Native: deprecate forceCheckedShutdown ##### Native. Swift Export ##### New Features - [`KT-82908`](https://youtrack.jetbrains.com/issue/KT-82908) Swift Export: bridges for FT should be recursive ##### Fixes - [`KT-82054`](https://youtrack.jetbrains.com/issue/KT-82054) Swift Export: `private set` is ignored by swift export - [`KT-83499`](https://youtrack.jetbrains.com/issue/KT-83499) Swift Export: trampoulines w/ varargs results in a broken swift code - [`KT-83655`](https://youtrack.jetbrains.com/issue/KT-83655) Typealias to a closure receiving a closure results in broken swift code - [`KT-82053`](https://youtrack.jetbrains.com/issue/KT-82053) Swift Export: Returning generic on top level function produces uncompilable code - [`KT-80971`](https://youtrack.jetbrains.com/issue/KT-80971) Swift Export: Support exception throwing - [`KT-83141`](https://youtrack.jetbrains.com/issue/KT-83141) Swift Export: suspendable covariant functional type - [`KT-82907`](https://youtrack.jetbrains.com/issue/KT-82907) Swift Export: attributes are not printed for parameters of closures - [`KT-80970`](https://youtrack.jetbrains.com/issue/KT-80970) Swift Export: Support cancellation - [`KT-82726`](https://youtrack.jetbrains.com/issue/KT-82726) Swift Export: filters out wrong module for coroutines - [`KT-81591`](https://youtrack.jetbrains.com/issue/KT-81591) Custom type translation rules in Swift export - [`KT-81270`](https://youtrack.jetbrains.com/issue/KT-81270) K/N - Build fails when exposing suspend functions ##### Tools. BCV - [`KT-80938`](https://youtrack.jetbrains.com/issue/KT-80938) Binary compatibility validation: can't exclude container types of Repeatable annotations by `filters.excluded.byNames` - [`KT-83484`](https://youtrack.jetbrains.com/issue/KT-83484) Create fat-jar artifact for abi-tools \[ABI Validation] - [`KT-80747`](https://youtrack.jetbrains.com/issue/KT-80747) Refactor API of ABI tools \[ABI Tools] ##### Tools. Build Tools API ##### New Features - [`KT-80681`](https://youtrack.jetbrains.com/issue/KT-80681) BTA: introduce a special argument for passing compiler plugins - [`KT-80338`](https://youtrack.jetbrains.com/issue/KT-80338) Kotlin CRI generation - [`KT-78198`](https://youtrack.jetbrains.com/issue/KT-78198) BTA: implement basic metrics collection - [`KT-79975`](https://youtrack.jetbrains.com/issue/KT-79975) BTA: add ability to cancel build operations - [`KT-81790`](https://youtrack.jetbrains.com/issue/KT-81790) \[BTA] Make build operations and configuration immutable after execute - [`KT-82702`](https://youtrack.jetbrains.com/issue/KT-82702) BTA: Allow collecting compiler lookups in non-incremental mode - [`KT-81847`](https://youtrack.jetbrains.com/issue/KT-81847) Add CRI <-> BTA integration - [`KT-81845`](https://youtrack.jetbrains.com/issue/KT-81845) Add CRI <-> Maven integration ##### Fixes - [`KT-84577`](https://youtrack.jetbrains.com/issue/KT-84577) BTA: API 2.3.20 incompatible with compiler 2.3.10 - [`KT-82682`](https://youtrack.jetbrains.com/issue/KT-82682) BTA: reading non-nullable arguments may return null or throw NPE - [`KT-81729`](https://youtrack.jetbrains.com/issue/KT-81729) BTA: loading from a classloader without implementation fails with CNFE instead of error with explanation - [`KT-83971`](https://youtrack.jetbrains.com/issue/KT-83971) BTA: OperationCancelledException cannot be thrown properly from isolated classloader - [`KT-82167`](https://youtrack.jetbrains.com/issue/KT-82167) Add BuildTimeMetric for the CRI data generation - [`KT-81846`](https://youtrack.jetbrains.com/issue/KT-81846) Add FUS for CRI usage in Gradle / Maven - [`KT-82399`](https://youtrack.jetbrains.com/issue/KT-82399) \[BTA] JvmClasspathSnapshottingOperationImpl doesn't use Option defaults - [`KT-82039`](https://youtrack.jetbrains.com/issue/KT-82039) BuildEvent compilation error missing with KGP 2.3.0-Beta1 - [`KT-81887`](https://youtrack.jetbrains.com/issue/KT-81887) Implement the CRI lookup data generation - [`KT-81886`](https://youtrack.jetbrains.com/issue/KT-81886) Implement the CRI data serialization - [`KT-81780`](https://youtrack.jetbrains.com/issue/KT-81780) Add Gradle <-> CRI integration tests - [`KT-81645`](https://youtrack.jetbrains.com/issue/KT-81645) BTA prints unreadable version in "option available only since" error (shows KotlinReleaseVersion`@hash` instead of 2.x.y) ##### Tools. CLI - [`KT-83044`](https://youtrack.jetbrains.com/issue/KT-83044) Report redundant CLI arguments when they have no effect - [`KT-83202`](https://youtrack.jetbrains.com/issue/KT-83202) Report all errors during parsing CLI arguments instead of a single one - [`KT-73320`](https://youtrack.jetbrains.com/issue/KT-73320) Migrate the main JS CLI pipeline to the phased structure - [`KT-81898`](https://youtrack.jetbrains.com/issue/KT-81898) Introduce a CLI option to disable source file sorting - [`KT-73606`](https://youtrack.jetbrains.com/issue/KT-73606) Provide a unified interface for managing the reporting of compiler warnings - [`KT-48419`](https://youtrack.jetbrains.com/issue/KT-48419) Using a `@RequiresOptIn` API that does not exist should have an option to not output a warning - [`KT-81861`](https://youtrack.jetbrains.com/issue/KT-81861) Introduce a mechanism that allows suppressing CLI diagnostics - [`KT-82321`](https://youtrack.jetbrains.com/issue/KT-82321) KMP Separate Compilation: Common fragments are missing forward declaration symbol providers - [`KT-81551`](https://youtrack.jetbrains.com/issue/KT-81551) Introduce an experimental CLI option for enabling local type aliases - [`KT-74196`](https://youtrack.jetbrains.com/issue/KT-74196) Remove patched copy of com.intellij.util.lang.JavaVersion from the Kotlin repo ##### Tools. CLI. Native - [`KT-64509`](https://youtrack.jetbrains.com/issue/KT-64509) Refactor Kotlin/Native compiler setup: run FE without KonanConfig ##### Tools. Compiler Plugin API - [`KT-83823`](https://youtrack.jetbrains.com/issue/KT-83823) Deprecate `PreprocessedVirtualFileFactoryExtension` - [`KT-82809`](https://youtrack.jetbrains.com/issue/KT-82809) \[FIR]\[IC] New containingFileName parameter API is not actually compatible with IC - [`KT-46709`](https://youtrack.jetbrains.com/issue/KT-46709) IR plugin lookups don't work as expected for expect class with actual typealias - [`KT-82518`](https://youtrack.jetbrains.com/issue/KT-82518) Disable automatic body generation of the plugin-generated callables - [`KT-82159`](https://youtrack.jetbrains.com/issue/KT-82159) \[FIR] Automatically add expressions to properties or functions - [`KT-58886`](https://youtrack.jetbrains.com/issue/KT-58886) K2: compiler plugin generated top level declarations cause AssertionError on K/JS and K/Native ##### Tools. Compiler Plugins ##### New Features - [`KT-71893`](https://youtrack.jetbrains.com/issue/KT-71893) Support `@Builder` lombok annotation on methods - [`KT-28594`](https://youtrack.jetbrains.com/issue/KT-28594) Add a 'jpa' pre-defined flavor to the allOpen compiler plugin. - [`KT-81604`](https://youtrack.jetbrains.com/issue/KT-81604) Lombok Kotlin compiler plugin and -Werror: Unable to ignore warning for the plugin appliance ##### Fixes - [`KT-83119`](https://youtrack.jetbrains.com/issue/KT-83119) Lombok. canEqual is not available from kotlin for a class with `@Data` annotation - [`KT-83334`](https://youtrack.jetbrains.com/issue/KT-83334) Lombok. Builder function is unavailable for a generic class - [`KT-83063`](https://youtrack.jetbrains.com/issue/KT-83063) Lombok: Setter/getter is not available with a protected access level - [`KT-83217`](https://youtrack.jetbrains.com/issue/KT-83217) Lombok. With method is available for the static field - [`KT-83120`](https://youtrack.jetbrains.com/issue/KT-83120) Lombok. A constructor is available for a class with an existing constructor and `@Data`/`@Value` annotation - [`KT-83256`](https://youtrack.jetbrains.com/issue/KT-83256) Lombok. Setter is available for non-final fields if `@Value` and `@Data`/`@Setter` are used together - [`KT-83251`](https://youtrack.jetbrains.com/issue/KT-83251) Lombok. Constructor from `@Value` includes fields that are initialized in declaration - [`KT-83252`](https://youtrack.jetbrains.com/issue/KT-83252) Lombok. Class marked with `@Value` isn't final - [`KT-83085`](https://youtrack.jetbrains.com/issue/KT-83085) Lombok: getter/setter is available for a static field if class is annotated - [`KT-83078`](https://youtrack.jetbrains.com/issue/KT-83078) Lombok: getter and setter are not available for a static Java field - [`KT-82341`](https://youtrack.jetbrains.com/issue/KT-82341) Migrate official compiler plugins to IC-safe reference... API ##### Tools. Compiler plugins. Compose - [`KT-84218`](https://youtrack.jetbrains.com/issue/KT-84218) \[2.3.20-Beta1] "IllegalStateException: no implementation for FUN MISSING\_DECLARATION" during bitcode lowering - [`KT-84055`](https://youtrack.jetbrains.com/issue/KT-84055) Reference to lambda in lambda in function 'TextField' can not be evaluated ##### Tools. Compiler plugins. Serialization - [`KT-82351`](https://youtrack.jetbrains.com/issue/KT-82351) Migrate kotlinx.serialization to IC-safe reference... API - [`KT-76949`](https://youtrack.jetbrains.com/issue/KT-76949) Serialization: "IllegalStateException: Serializer for element of type kotlin.Any has not been found" on custom serializer for `Map<String, Any?>` - [`KT-73107`](https://youtrack.jetbrains.com/issue/KT-73107) Serialization: "IllegalStateException: Serializer for element of type kotlin.Any? has not been found" with star projection ##### Tools. Gradle ##### New Features - [`KT-79389`](https://youtrack.jetbrains.com/issue/KT-79389) Add allopen plugin + JPA preset to kotlin.plugin.jpa - [`KT-78200`](https://youtrack.jetbrains.com/issue/KT-78200) Gradle: enable JVM compilation through BTA by default - [`KT-81844`](https://youtrack.jetbrains.com/issue/KT-81844) Add CRI <-> Gradle integration ##### Performance Improvements - [`KT-84152`](https://youtrack.jetbrains.com/issue/KT-84152) Memory Leak and OOM Errors in Kotlin Gradle Plugin 2.3.20-Beta2 with `in-process` execution mode ##### Fixes - [`KT-80186`](https://youtrack.jetbrains.com/issue/KT-80186) Remove usage of deprecated Gradle API Project.container(...) - [`KT-78754`](https://youtrack.jetbrains.com/issue/KT-78754) KGP: Remove usages of isVisible/setVisible - [`KT-80356`](https://youtrack.jetbrains.com/issue/KT-80356) Compatibility with Gradle 9.2.0 release - [`KT-78763`](https://youtrack.jetbrains.com/issue/KT-78763) Compatibility with Gradle 9.1.0 release - [`KT-83316`](https://youtrack.jetbrains.com/issue/KT-83316) \[BTA] Build Reports missing information when JVM compilation uses Build Tools API - [`KT-82885`](https://youtrack.jetbrains.com/issue/KT-82885) Run tests against Gradle 9.3.0 - [`KT-83125`](https://youtrack.jetbrains.com/issue/KT-83125) Deprecate out-of-process compilation mode - [`KT-82323`](https://youtrack.jetbrains.com/issue/KT-82323) Deprecate LanguageSettings.enableLanguageFeature DSL - [`KT-83323`](https://youtrack.jetbrains.com/issue/KT-83323) Run integration tests against Gradle 9.2 - [`KT-82884`](https://youtrack.jetbrains.com/issue/KT-82884) Compile against Gradle API 9.3.0 - [`KT-78104`](https://youtrack.jetbrains.com/issue/KT-78104) Deprecate CleanableStore infrastructure - [`KT-80096`](https://youtrack.jetbrains.com/issue/KT-80096) Strange "Inconsistent JVM Target Compatibility" warning - [`KT-82715`](https://youtrack.jetbrains.com/issue/KT-82715) Declaring dependencies using multi-string notation has been deprecated - [`KT-83161`](https://youtrack.jetbrains.com/issue/KT-83161) CRI: it is not clear that CRI generation requires BTA being enabled - [`KT-82717`](https://youtrack.jetbrains.com/issue/KT-82717) Specifying 'org.gradle.java.installations.auto-detect' as a project property on the command line has been deprecated - [`KT-81830`](https://youtrack.jetbrains.com/issue/KT-81830) Create autogenerated kotlin version constants to be used with disableNativeCache DSL - [`KT-83322`](https://youtrack.jetbrains.com/issue/KT-83322) Compile against Gradle 9.2 API - [`KT-81831`](https://youtrack.jetbrains.com/issue/KT-81831) Verify Problems API implementation with Gradle guidelines - [`KT-80120`](https://youtrack.jetbrains.com/issue/KT-80120) Support colored value for --console command in Gradle 9.1 - [`KT-81400`](https://youtrack.jetbrains.com/issue/KT-81400) ToolingDiagnosticFactory: check if documentationLink set multiple times - [`KT-83070`](https://youtrack.jetbrains.com/issue/KT-83070) The KGP api reference is missing a description - [`KT-82459`](https://youtrack.jetbrains.com/issue/KT-82459) Improve iOS simulator boot implementation - [`KT-80008`](https://youtrack.jetbrains.com/issue/KT-80008) Track cross compilation status from project dependencies - [`KT-78764`](https://youtrack.jetbrains.com/issue/KT-78764) Compile against Gradle 9.1 API ##### Tools. Gradle. BCV - [`KT-80674`](https://youtrack.jetbrains.com/issue/KT-80674) Rename tasks to avoid using `legacy` word \[ABI Validation] - [`KT-80614`](https://youtrack.jetbrains.com/issue/KT-80614) Add dependency on abi check from gradle's check task \[ABI Validation] - [`KT-80827`](https://youtrack.jetbrains.com/issue/KT-80827) Delete DSL for working with dump variants \[ABI Validation] - [`KT-80823`](https://youtrack.jetbrains.com/issue/KT-80823) Stabilize DSL for filtering \[ABI Validation] ##### Tools. Gradle. Cocoapods - [`KT-80641`](https://youtrack.jetbrains.com/issue/KT-80641) EXECUTABLE\_DEBUG\_DYLIB\_PATH problem - [`KT-80644`](https://youtrack.jetbrains.com/issue/KT-80644) Cocoapod plugin builds a synthetic project for "generic/platform=iOS Simulator" ##### Tools. Gradle. JS - [`KT-84772`](https://youtrack.jetbrains.com/issue/KT-84772) Bundled yarn.lock for kotlinWasmToolingSetup does not include `@swc`/helpers`@0`.5.17 - [`KT-82946`](https://youtrack.jetbrains.com/issue/KT-82946) Js, Wasm: Upgrade NPM dependencies ##### Tools. Gradle. Multiplatform ##### New Features - [`KT-77258`](https://youtrack.jetbrains.com/issue/KT-77258) Query status of cross-compilation or compilation task - [`KT-81849`](https://youtrack.jetbrains.com/issue/KT-81849) Replace kotlin-test-common and kotlin-test-annotations-common with just kotlin-test ##### Fixes - [`KT-83917`](https://youtrack.jetbrains.com/issue/KT-83917) compileCommonMainKotlinMetadata fails in CMP core repository with Kotlin 2.3.20-Beta1 - [`KT-82090`](https://youtrack.jetbrains.com/issue/KT-82090) Kotlin JVM + Android Shared Source set fails Import with the Project Isolation enabled - [`KT-81973`](https://youtrack.jetbrains.com/issue/KT-81973) NPE with Cannot invoke "java.util.List.get(int)" because "path" is null in KMP + Android project - [`KT-79257`](https://youtrack.jetbrains.com/issue/KT-79257) Consider deprecating and removing kotlin.kmp.isolated-projects.support - [`KT-81944`](https://youtrack.jetbrains.com/issue/KT-81944) Legacy KMP Android uses wrong configurations to infer common dependencies - [`KT-83687`](https://youtrack.jetbrains.com/issue/KT-83687) Revert deprecation of 'androidTarget' for AGP lower than 9 - [`KT-81536`](https://youtrack.jetbrains.com/issue/KT-81536) "Couldn't resolve dependency in 'commonMain' for all target platforms" in 2.2.20-Beta2 - [`KT-81724`](https://youtrack.jetbrains.com/issue/KT-81724) IntelliJ successfully resolves imports that are not actually available in the given module - [`KT-79073`](https://youtrack.jetbrains.com/issue/KT-79073) compileTest\* tasks pass separateCompilation parameters but don't behave accordingly - [`KT-71130`](https://youtrack.jetbrains.com/issue/KT-71130) Enable Isolated Projects support by default for KMP ##### Tools. Gradle. Native - [`KT-84759`](https://youtrack.jetbrains.com/issue/KT-84759) iosX64 should not be marked as deprecated in Kotlin Gradle DSL - [`KT-83598`](https://youtrack.jetbrains.com/issue/KT-83598) KotlinNativeDownloadTask build caching is unsafe - [`KT-80715`](https://youtrack.jetbrains.com/issue/KT-80715) Deprecate `kotlin.native.cacheKind` and introduce DSL instead - [`KT-83353`](https://youtrack.jetbrains.com/issue/KT-83353) DisableNativeCache breaks up-to-date checks for non-cacheable K/N targets - [`KT-81443`](https://youtrack.jetbrains.com/issue/KT-81443) `ConfigurationCacheError` on Linux arm64 due to disabled iOS targets - [`KT-82970`](https://youtrack.jetbrains.com/issue/KT-82970) Warning about disabled K/N caches for non-cacheable targets is printed twice - [`KT-82786`](https://youtrack.jetbrains.com/issue/KT-82786) Warning about disabled K/N caches is displayed twice ##### Tools. Gradle. Swift Export - [`KT-82727`](https://youtrack.jetbrains.com/issue/KT-82727) Swift Export: generated kotlin bridges don't see neighboring modules ##### Tools. Gradle. Wasm - [`KT-82525`](https://youtrack.jetbrains.com/issue/KT-82525) K/Wasm: kotlinToolingSetup does not depend on package manager installation ##### Tools. Incremental Compile - [`KT-80483`](https://youtrack.jetbrains.com/issue/KT-80483) Incorporate IC lookups into `reference...` methods of `IrPluginContext` ##### Tools. JPS - [`KT-76927`](https://youtrack.jetbrains.com/issue/KT-76927) Switching from VAL to VAR does not trigger recompilation of usage in Kotlin-uses-Kotlin - [`KT-79362`](https://youtrack.jetbrains.com/issue/KT-79362) JPS/NoArg: Failed to build project with 'java.lang.NoClassDefFoundError: org/jetbrains/kotlin/com/intellij/psi/PsiElement' ##### Tools. Kapt - [`KT-81691`](https://youtrack.jetbrains.com/issue/KT-81691) K2: KAPT: "ClassCastException: IrErrorTypeImpl cannot be cast to class IrSimpleType" - [`KT-82338`](https://youtrack.jetbrains.com/issue/KT-82338) K2 KAPT: ISE "Cannot evaluate IR expression in annotation" on unresolved enum usage ##### Tools. Maven - [`KT-83565`](https://youtrack.jetbrains.com/issue/KT-83565) Maven: auto‑detect src/main|test/kotlin - [`KT-79304`](https://youtrack.jetbrains.com/issue/KT-79304) Maven: Automatically add kotlin-stdlib dependency - [`KT-83111`](https://youtrack.jetbrains.com/issue/KT-83111) Add JavaVersion argument resolver for kotlin-maven-plugin-test - [`KT-83112`](https://youtrack.jetbrains.com/issue/KT-83112) Add MavenVersion argument resolver for kotlin-maven-plugin-test ##### Tools. REPL - [`KT-82575`](https://youtrack.jetbrains.com/issue/KT-82575) \[K2 REPL] Redesign frontend resolution for REPL snippets - [`KT-82741`](https://youtrack.jetbrains.com/issue/KT-82741) \[K2 Repl] OOM in `FirJavaElementFinderKt.collectAllDependentSourceSessionsTo` when rerunning the same cell multiple times ##### Tools. Scripts - [`KT-81679`](https://youtrack.jetbrains.com/issue/KT-81679) Script explain: while loop explanation may lead to the hanging code - [`KT-81677`](https://youtrack.jetbrains.com/issue/KT-81677) Script explain: Contents of the if/when branches are not explained - [`KT-67063`](https://youtrack.jetbrains.com/issue/KT-67063) LauncherReplTest flaky on Windows ##### Tools. Statistics (FUS) - [`KT-82877`](https://youtrack.jetbrains.com/issue/KT-82877) Add performance measurement for KLIB size - [`KT-79576`](https://youtrack.jetbrains.com/issue/KT-79576) Included build subprojects produce FUS files with unknown\_id when configuration cache is enabled ### [`v2.3.10`](https://github.com/JetBrains/kotlin/blob/HEAD/ChangeLog.md#2310) [Compare Source](https://github.com/JetBrains/kotlin/compare/v2.3.0...v2.3.10) ##### Compiler - [`KT-83984`](https://youtrack.jetbrains.com/issue/KT-83984) Data races around kotlinx.serialization plugin protobuf extensions registration - [`KT-83317`](https://youtrack.jetbrains.com/issue/KT-83317) ClassCastException: with cast kotlin.UInt to java.lang.Number when defining constant - [`KT-83031`](https://youtrack.jetbrains.com/issue/KT-83031) K2: unstable resolution of EnhancedNullability from type-use NotNull in presence of unused code - [`KT-81700`](https://youtrack.jetbrains.com/issue/KT-81700) flaky overload resolution behaviors (false-positive errors, different final candidates, compile-time failures) - [`KT-83983`](https://youtrack.jetbrains.com/issue/KT-83983) Revert of KT-83081 - [`KT-83314`](https://youtrack.jetbrains.com/issue/KT-83314) JSpecify `@NullMarked` changes Java equals(Object) to equals(Any?) causing override conflict in Kotlin 2.3 - [`KT-82863`](https://youtrack.jetbrains.com/issue/KT-82863) `@NoInfer` regression since 2.2.20 - [`KT-82841`](https://youtrack.jetbrains.com/issue/KT-82841) "kotlin.NoWhenBranchMatchedException" in `when` with `!is` check & non-sealed class in the middle of hierarchy ##### JVM. Reflection - [`KT-83608`](https://youtrack.jetbrains.com/issue/KT-83608) Kotlin-reflect: "Unknown origin of public abstract operator fun invoke(p1: P1, p2: P2): R" - [`KT-83361`](https://youtrack.jetbrains.com/issue/KT-83361) "KotlinReflectionInternalError: Type parameter not found: 0" on super types with Kotlin 2.3.0 - [`KT-42199`](https://youtrack.jetbrains.com/issue/KT-42199) "KotlinReflectionInternalError: Unknown origin of public abstract operator fun invoke" on function reference to FunctionN.invoke - [`KT-81024`](https://youtrack.jetbrains.com/issue/KT-81024) Reflection: New KType implementation fails on arguments comparison for a Nothing type parameter ##### Tools. Compiler Plugins - [`KT-83266`](https://youtrack.jetbrains.com/issue/KT-83266) "Unsupported class file major version 69" for "produceReleaseComposeMapping" task with Kotlin 2.3 - [`KT-83099`](https://youtrack.jetbrains.com/issue/KT-83099) Compose compiler does not generate stack trace mappings for project files ##### Tools. Gradle - [`KT-83070`](https://youtrack.jetbrains.com/issue/KT-83070) The KGP api reference is missing a description - [`KT-82459`](https://youtrack.jetbrains.com/issue/KT-82459) Improve iOS simulator boot implementation ##### Tools. Gradle. JS - [`KT-82946`](https://youtrack.jetbrains.com/issue/KT-82946) Js, Wasm: Upgrade NPM dependencies ##### Tools. Gradle. Multiplatform - [`KT-83687`](https://youtrack.jetbrains.com/issue/KT-83687) Revert deprecation of 'androidTarget' for AGP lower than 9 ### [`v2.3.0`](https://github.com/JetBrains/kotlin/blob/HEAD/ChangeLog.md#230) [Compare Source](https://github.com/JetBrains/kotlin/compare/v2.2.21...v2.3.0) ##### Analysis API - [`KT-80082`](https://youtrack.jetbrains.com/issue/KT-80082) K2. False positive "Cannot resolve method" for self-bounded generic with wildcard return type in Java interop - [`KT-80303`](https://youtrack.jetbrains.com/issue/KT-80303) Move `:native:analysis-api-klib-reader` to `:libraries:tools` ##### Analysis API. Code Compilation - [`KT-70860`](https://youtrack.jetbrains.com/issue/KT-70860) K2 IDE / Kotlin Debugger: CCE “java.lang.String cannot be cast to java.lang.Void” on evaluating not-null variable on the line with assigning null to that var - [`KT-78554`](https://youtrack.jetbrains.com/issue/KT-78554) K2 IDE / Kotlin Debugger: ISE “No override for FUN IR\_EXTERNAL\_DECLARATION\_STUB” on calling toString() for local class instance during evaluation - [`KT-73201`](https://youtrack.jetbrains.com/issue/KT-73201) K2 IDE: Error while evaluating expressions with local classes ##### Analysis API. FIR - [`KT-81378`](https://youtrack.jetbrains.com/issue/KT-81378) Expected expression 'FirFunctionCallImpl' to be resolved caused by `suspend {}` - [`KT-80473`](https://youtrack.jetbrains.com/issue/KT-80473) Add events for tracking LL activities - [`KT-46375`](https://youtrack.jetbrains.com/issue/KT-46375) Analysis API: Support cross-file class redeclaration checks using indices - [`KT-80471`](https://youtrack.jetbrains.com/issue/KT-80471) Analysis API: Deduplicate equivalent call candidates in `resolveToCallCandidates` - [`KT-79653`](https://youtrack.jetbrains.com/issue/KT-79653) \[Analysis API] ContextCollector: BODY context of enum classes doesn't contain enum entries - [`KT-75858`](https://youtrack.jetbrains.com/issue/KT-75858) K2 AA: False positive 'property must be initialized' on incremental analysis with 'field' usage and semicolon in setter - [`KT-80231`](https://youtrack.jetbrains.com/issue/KT-80231) AnnotationArgumentsStateKeepers doesn't restore the initial annotation in some cases - [`KT-80233`](https://youtrack.jetbrains.com/issue/KT-80233) Pull mutation out of AnnotationArgumentsStateKeepers - [`KT-71466`](https://youtrack.jetbrains.com/issue/KT-71466) `LLFirBuiltinsSessionFactory` uses `createCompositeSymbolProvider` - [`KT-76432`](https://youtrack.jetbrains.com/issue/KT-76432) JavaClassUseSiteMemberScope: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl ##### Analysis API. Infrastructure - [`KT-80717`](https://youtrack.jetbrains.com/issue/KT-80717) Support IntelliJ Bazel build in the Kotlin Coop development mode ##### Analysis API. Light Classes - [`KT-80656`](https://youtrack.jetbrains.com/issue/KT-80656) Duplicate no-args constructor in PSI - [`KT-60490`](https://youtrack.jetbrains.com/issue/KT-60490) Symbol Light Classes: Property accessors from a delegated interface don't present in the delegating class - [`KT-79689`](https://youtrack.jetbrains.com/issue/KT-79689) SymbolLightClassForClassLike.toString() causes PSI tree loading - [`KT-80690`](https://youtrack.jetbrains.com/issue/KT-80690) Private interface functions are not present in light classes - [`KT-80256`](https://youtrack.jetbrains.com/issue/KT-80256) K2: Certain actions in JPA code causes infinite PIEAE: "Element class CompositeElement of type REFERENCE\_EXPRESSION (class KtNameReferenceExpressionElementType)" - [`KT-79012`](https://youtrack.jetbrains.com/issue/KT-79012) Add a high-level overview of light classes ##### Analysis API. Providers and Caches ##### Fixes - [`KT-81476`](https://youtrack.jetbrains.com/issue/KT-81476) Analysis API: `AlreadyDisposedException` from low-memory cache cleanup - [`KT-80911`](https://youtrack.jetbrains.com/issue/KT-80911) Analysis API: Execute session invalidation in a non-cancelable section - [`KT-81242`](https://youtrack.jetbrains.com/issue/KT-81242) Analysis API: Add UUID/lifetime properties to LL FIR session structure logging - [`KT-80622`](https://youtrack.jetbrains.com/issue/KT-80622) Analysis API: Visualise LL FIR session structure & weight - [`KT-80904`](https://youtrack.jetbrains.com/issue/KT-80904) Analysis API: "Invalid dangling file module" exception during session invalidation - [`KT-78882`](https://youtrack.jetbrains.com/issue/KT-78882) K2 AA: Calling containingSymbol on getProgressionLastElement causes exception - [`KT-58325`](https://youtrack.jetbrains.com/issue/KT-58325) Analysis API: Combine `LLKotlinStubBasedLibrarySymbolProvider`s in session dependencies (optimization) - [`KT-77825`](https://youtrack.jetbrains.com/issue/KT-77825) Analysis API: `CheckersComponent` consumes a lot of memory while being unused in LL FIR sessions - [`KT-76526`](https://youtrack.jetbrains.com/issue/KT-76526) Incorrect built-in module is provided for non-JVM sources in Standalone - [`KT-62549`](https://youtrack.jetbrains.com/issue/KT-62549) Analysis API: Cache callables in combined Kotlin symbol providers - [`KT-70721`](https://youtrack.jetbrains.com/issue/KT-70721) LL FIR: investigate possibility of moving `LLFirFirClassByPsiClassProvider . getClassByPsiClass (PsiClass)` to symbol providers - [`KT-72998`](https://youtrack.jetbrains.com/issue/KT-72998) Analysis API: Introduce `getClassLikeSymbolByPsi` to LL FIR symbol providers ##### Analysis API. Standalone - [`KT-81108`](https://youtrack.jetbrains.com/issue/KT-81108) AA: java.lang.ClassCastException: class org.jetbrains.kotlin.fir.FirBinaryDependenciesModuleData cannot be cast to class org.jetbrains.kotlin.analysis.low\.level.api.fir.projectStructure.LLFirModuleData - [`KT-80573`](https://youtrack.jetbrains.com/issue/KT-80573) Potential performance issue on class ID computation - [`KT-80559`](https://youtrack.jetbrains.com/issue/KT-80559) Try to optimize KotlinStandaloneDeclarationProviderFactory startup for tests - [`KT-71706`](https://youtrack.jetbrains.com/issue/KT-71706) Analysis API Standalone: `StandaloneProjectFactory.createSearchScopeByLibraryRoots` creates inefficient file-based search scopes ##### Analysis API. Stubs and Decompilation ##### Performance Improvements - [`KT-77097`](https://youtrack.jetbrains.com/issue/KT-77097) Support `ReplaceWith` deprecation annotation argument via stubs ##### Fixes - [`KT-80350`](https://youtrack.jetbrains.com/issue/KT-80350) Drop K1 decompiler - [`KT-77082`](https://youtrack.jetbrains.com/issue/KT-77082) StackOverflowError in CreateFreshTypeVariableSubstitutorStage.shouldBeFlexible - [`KT-80798`](https://youtrack.jetbrains.com/issue/KT-80798) Improve stubs tests coverage - [`KT-75318`](https://youtrack.jetbrains.com/issue/KT-75318) Read context parameter fields from metadata in CallableClsStubBuilder - [`KT-77874`](https://youtrack.jetbrains.com/issue/KT-77874) AA disagrees with the compiler on descriptions of context parameters from binaries in messages for context argument ambiguity errors - [`KT-80276`](https://youtrack.jetbrains.com/issue/KT-80276) Implement native coping for stubs - [`KT-79780`](https://youtrack.jetbrains.com/issue/KT-79780) Decompiled MultifileClass has Facade kind - [`KT-79398`](https://youtrack.jetbrains.com/issue/KT-79398) isClsStubCompiledToJvmDefaultImplementation flag is inconsistent for compiled and decompiled stubs - [`KT-79798`](https://youtrack.jetbrains.com/issue/KT-79798) Prettify stub usages in LL stub-based deserializer - [`KT-78949`](https://youtrack.jetbrains.com/issue/KT-78949) AbstractLLStubBasedResolutionTest: tests against real stub-based files - [`KT-80251`](https://youtrack.jetbrains.com/issue/KT-80251) Inconsistent decompiled and compiled stub for properties with an initializer and a delegate - [`KT-74547`](https://youtrack.jetbrains.com/issue/KT-74547) Implement decompiler for K2 - [`KT-79555`](https://youtrack.jetbrains.com/issue/KT-79555) Move KotlinFileStubImpl serialization/deserialization to the Analysis API - [`KT-79487`](https://youtrack.jetbrains.com/issue/KT-79487) "null DefinitelyNotNullType for 'T'" from decompiler - [`KT-60764`](https://youtrack.jetbrains.com/issue/KT-60764) Stub Builder: fix differences between K1 and K2 stub building on decompiled files - [`KT-79484`](https://youtrack.jetbrains.com/issue/KT-79484) An empty enum class with a member decompiles with a synthetic error - [`KT-79730`](https://youtrack.jetbrains.com/issue/KT-79730) Decompiled files have an extra `Kt` suffix - [`KT-79483`](https://youtrack.jetbrains.com/issue/KT-79483) data modifier is not present on object modifier - [`KT-75398`](https://youtrack.jetbrains.com/issue/KT-75398) Local classes from scripts have ClassId in stubs - [`KT-79412`](https://youtrack.jetbrains.com/issue/KT-79412) Context parameters with type annotations cause inconsistency errors while building stubs ##### Analysis API. Surface ##### New Features - [`KT-80084`](https://youtrack.jetbrains.com/issue/KT-80084) Provide endpoints for Analysis API to understand when the context sensitive resolution is used - [`KT-64340`](https://youtrack.jetbrains.com/issue/KT-64340) Analysis API: no way to get a type of vararg parameter - [`KT-68387`](https://youtrack.jetbrains.com/issue/KT-68387) AA: provide context for type approximations ##### Performance Improvements - [`KT-80713`](https://youtrack.jetbrains.com/issue/KT-80713) Optimize KaDeclarationSymbol#visibility for class-like symbols - [`KT-79097`](https://youtrack.jetbrains.com/issue/KT-79097) KaFirNamedFunctionSymbol#isSuspend shouldn't trigger resolution - [`KT-79095`](https://youtrack.jetbrains.com/issue/KT-79095) isOverride shouldn't trigger resolution if not compiler plugins present ##### Fixes - [`KT-80234`](https://youtrack.jetbrains.com/issue/KT-80234) Incorrect value of `isActual` for the implicitly `actual` constructor of annotation class - [`KT-81132`](https://youtrack.jetbrains.com/issue/KT-81132) Use KaSession instead of a particular KaSessionComponent for context parameter bridges - [`KT-81129`](https://youtrack.jetbrains.com/issue/KT-81129) K2: KaSymbolInformationProvider#importableFqName: should return null for dynamic declarations - [`KT-81128`](https://youtrack.jetbrains.com/issue/KT-81128) K2: KaSymbolInformationProvider#importableFqName: should return null for error destructuring declarations - [`KT-81127`](https://youtrack.jetbrains.com/issue/KT-81127) K2: KaSymbolInformationProvider#importableFqName: should return null for anonymous functions - [`KT-81126`](https://youtrack.jetbrains.com/issue/KT-81126) K2: KaSymbolInformationProvider#importableFqName: should return null for enum entry initializer constructors - [`KT-81125`](https://youtrack.jetbrains.com/issue/KT-81125) K2: KaSymbolInformationProvider#importableFqName: should return null for property accessors - [`KT-81124`](https://youtrack.jetbrains.com/issue/KT-81124) K2: KaSymbolInformationProvider#importableFqName: type alias constructor should have a reference to the type alias and not to the underlying class - [`KT-70127`](https://youtrack.jetbrains.com/issue/KT-70127) Analysis API: 'KaFirReceiverParameterSymbol' does not implement 'KaFirSymbol'; leads to exception from `importableFqName` - [`KT-81123`](https://youtrack.jetbrains.com/issue/KT-81123) Reimplement KaFirSymbolInformationProvider#importableFqName - [`KT-81122`](https://youtrack.jetbrains.com/issue/KT-81122) Drop KaImportOptimizer - [`KT-78093`](https://youtrack.jetbrains.com/issue/KT-78093) Add bridges for context parameters - [`KT-79772`](https://youtrack.jetbrains.com/issue/KT-79772) Migrate from 'validityAsserted' to 'withValidityAssertion' - [`KT-79328`](https://youtrack.jetbrains.com/issue/KT-79328) K2 AA, isUsedAsExpression: Unhandled Non-KtExpression parent of KtExpression: class org.jetbrains.kotlin.psi.KtImportDirective - [`KT-80366`](https://youtrack.jetbrains.com/issue/KT-80366) IllegalStateException from KaFirStopWorldCacheCleaner - [`KT-80274`](https://youtrack.jetbrains.com/issue/KT-80274) Merge AbstractMultiModuleSymbolByPsiTest to AbstractSymbolByPsiTest - [`KT-80352`](https://youtrack.jetbrains.com/issue/KT-80352) KaBaseResolutionScope.contains(PsiElement) always returns false for Android light classes (e.g. synthetic R.java classes) - [`KT-80178`](https://youtrack.jetbrains.com/issue/KT-80178) Incorrect modality for an abstract interface function with a redundant `open` modifier - [`KT-79129`](https://youtrack.jetbrains.com/issue/KT-79129) \[Analysis API] `KaFe10TypeCreator.buildClassType` cannot build builtin types by class ids - [`KT-79143`](https://youtrack.jetbrains.com/issue/KT-79143) AA: `argumentMapping` contains an expression that is not an argument - [`KT-59857`](https://youtrack.jetbrains.com/issue/KT-59857) KaExpressionTypeProvider#returnType shouldn't throw an exception for class like declarations - [`KT-79667`](https://youtrack.jetbrains.com/issue/KT-79667) Enable resolve on java record components in standalone mode - [`KT-73050`](https://youtrack.jetbrains.com/issue/KT-73050) `KaFirSymbolRelationProvider#expectsForActual`: suspicius logic for KaReceiverParameterSymbol - [`KT-78904`](https://youtrack.jetbrains.com/issue/KT-78904) KaBaseWriteActionStartedChecker throws when no additional WA was done - [`KT-79281`](https://youtrack.jetbrains.com/issue/KT-79281) Add KDoc to `KaTypePointer#restore` - [`KT-78597`](https://youtrack.jetbrains.com/issue/KT-78597) KaUseSiteVisibilityChecker returns false for internal functions exposed via implicit receiver - [`KT-71705`](https://youtrack.jetbrains.com/issue/KT-71705) FIR api impl: Postfix increment expression's `expressionType` is Unit when incrementing array element - [`KT-75057`](https://youtrack.jetbrains.com/issue/KT-75057) Analysis API: Reference to object through typealias in invoke operator call leads to original type ##### Backend. Native. Debug - [`KT-79848`](https://youtrack.jetbrains.com/issue/KT-79848) Flaky debugger tests in opt.debug/cache.\*/GC.CMS/GC.sch.ad/alloc.custom configuration ##### Backend. Wasm ##### New Features - [`KT-59032`](https://youtrack.jetbrains.com/issue/KT-59032) Support instantiation of annotation classes on WASM ##### Fixes - [`KT-76204`](https://youtrack.jetbrains.com/issue/KT-76204) K/Wasm: support generating a wasm module per kotlin module/klib - [`KT-79357`](https://youtrack.jetbrains.com/issue/KT-79357) K/Wasm: store data for string literals in utf8 for Latin1 - [`KT-82075`](https://youtrack.jetbrains.com/issue/KT-82075) K/Wasm: kotlin.wasm.internal.getSimpleName crashes on iOS Safari older than 26 - [`KT-79244`](https://youtrack.jetbrains.com/issue/KT-79244) \[Wasm] Drop K1-specific tests, testrunners and test directives - [`KT-69621`](https://youtrack.jetbrains.com/issue/KT-69621) K/Wasm: Consider enabling support for KClass.qualifiedName by default - [`KT-80397`](https://youtrack.jetbrains.com/issue/KT-80397) K/Wasm: turn on by default using a new version of the exception handling proposal for wasm-wasi target - [`KT-81372`](https://youtrack.jetbrains.com/issue/KT-81372) K/Wasm: JsException: Exception was thrown while running JavaScript code on Safari 18.2/18.3 - [`KT-80018`](https://youtrack.jetbrains.com/issue/KT-80018) K/Wasm: exceptions don't work properly in JavaScriptCore (vm inside Safari, WebKit) - [`KT-66072`](https://youtrack.jetbrains.com/issue/KT-66072) K/Wasm: improve how exceptions work in JS interop - [`KT-80106`](https://youtrack.jetbrains.com/issue/KT-80106) devServer in Kotlin/Wasm overwrites defaults, causing missing static paths - [`KT-80210`](https://youtrack.jetbrains.com/issue/KT-80210) Wasm: "Unexpected non-external class: kotlin.Nothing" caused by JsExport with JsPromise - [`KT-80555`](https://youtrack.jetbrains.com/issue/KT-80555) WASM IC: Can't link symbol on kotlinx.coroutines on fresh master - [`KT-80415`](https://youtrack.jetbrains.com/issue/KT-80415) WasmJs Number Elvis Operator Crash - [`KT-76509`](https://youtrack.jetbrains.com/issue/KT-76509) WasmJS: ReferenceError: Temporal is not defined caused by "Redundant reference to unused external results" - [`KT-79317`](https://youtrack.jetbrains.com/issue/KT-79317) \[Wasm] Do not throw CCE for ExcludedFromCodegen declarations - [`KT-78036`](https://youtrack.jetbrains.com/issue/KT-78036) K/Wasm: generate a message with "expected" and "actual" types in case of CCE ##### Compiler ##### New Features - [`KT-80461`](https://youtrack.jetbrains.com/issue/KT-80461) K2: false positive NO\_ELSE\_IN\_WHEN for complex sealed hierarchy - [`KT-77676`](https://youtrack.jetbrains.com/issue/KT-77676) K/N: enable typechecks and the casts optimization pass in debug mode by default - [`KT-79185`](https://youtrack.jetbrains.com/issue/KT-79185) Support local type aliases - [`KT-80837`](https://youtrack.jetbrains.com/issue/KT-80837) Warn about extension function with a context shadowed by member - [`KT-80768`](https://youtrack.jetbrains.com/issue/KT-80768) Warning on overloading by a superset of context parameters in class context - [`KT-80031`](https://youtrack.jetbrains.com/issue/KT-80031) Check spotbugs's `@CheckReturnValue` in Kotlin's unused return value checker - [`KT-79380`](https://youtrack.jetbrains.com/issue/KT-79380) Native: add performance measurement for the rest of backend phases - [`KT-79381`](https://youtrack.jetbrains.com/issue/KT-79381) Native: add performance measurement of LLVM phases - [`KT-80222`](https://youtrack.jetbrains.com/issue/KT-80222) Implement the prohibition of always-false `is` checks for definitely incompatible types - [`KT-79295`](https://youtrack.jetbrains.com/issue/KT-79295) Parse and build raw FIR from new short and full forms of positional destructuring with square brackets - [`KT-74810`](https://youtrack.jetbrains.com/issue/KT-74810) Support typealiased/mapped Java types in unused return value checker - [`KT-71244`](https://youtrack.jetbrains.com/issue/KT-71244) Incorporate existing `@CheckReturnValue` annotation(s) into Kotlin's unused return value checker - [`KT-79922`](https://youtrack.jetbrains.com/issue/KT-79922) Record 'MustUse/ExplicitlyIgnorable' state for overrides even in disabled RVC mode - [`KT-79920`](https://youtrack.jetbrains.com/issue/KT-79920) Store 'Explicitly ignorable' state of function/property in the metadata - [`KT-79690`](https://youtrack.jetbrains.com/issue/KT-79690) Implement a USELESS\_ELVIS\_LEFT\_IS\_NULL with elvis expression - [`KT-79296`](https://youtrack.jetbrains.com/issue/KT-79296) Implement/adapt diagnostics for new destructuring - [`KT-79298`](https://youtrack.jetbrains.com/issue/KT-79298) Report errors on new destructuring syntax in K1 ##### Performance Improvements - [`KT-81617`](https://youtrack.jetbrains.com/issue/KT-81617) Native: casts optimizations pass explodes on deep nested loops - [`KT-80554`](https://youtrack.jetbrains.com/issue/KT-80554) Kotlin/Native: investigate performance hit from always-on llvm pass profiling - [`KT-81340`](https://youtrack.jetbrains.com/issue/KT-81340) K/N: severe compilation time degradation after turning on casts optimization pass - [`KT-80370`](https://youtrack.jetbrains.com/issue/KT-80370) Add NO\_INLINE attribute to some of runtime functions - [`KT-80167`](https://youtrack.jetbrains.com/issue/KT-80167) K/N: condense the nodes and edges in DevirtualizationAnalysis constraint graph - [`KT-79535`](https://youtrack.jetbrains.com/issue/KT-79535) Revert incorrect SAM conversion enhancements brought to K2 ##### Fixes - [`KT-79979`](https://youtrack.jetbrains.com/issue/KT-79979) K2: ClassCastException when overriding extension property with delegation - [`KT-82590`](https://youtrack.jetbrains.com/issue/KT-82590) ClassCastException when instantiating class with generics implemented by fun interface and lambda - [`KT-78881`](https://youtrack.jetbrains.com/issue/KT-78881) K2: False positive "Assigned value is never read" in composable function - [`KT-79276`](https://youtrack.jetbrains.com/issue/KT-79276) Dexing fails with "Cannot read field X because <local0> is null" with 2.2.0 - [`KT-79547`](https://youtrack.jetbrains.com/issue/KT-79547) "UnsupportedOperationException: Not supported" with inlining and value classes - [`KT-79442`](https://youtrack.jetbrains.com/issue/KT-79442) "Multiple annotations of type kotlin.coroutines.jvm.internal.DebugMetadata": 2.2.0-Beta1 generates broken code with JVM default suspend methods in interfaces - [`KT-80744`](https://youtrack.jetbrains.com/issue/KT-80744) Kotlin failure on lambda with type parameter - [`KT-81618`](https://youtrack.jetbrains.com/issue/KT-81618) "Number of arguments should not be less than number of parameters" on JVM on Kotlin 2.3.0-Beta1 - [`KT-82869`](https://youtrack.jetbrains.com/issue/KT-82869) Green-to-Red change in 2.3 after prioritizing non-suspend-function-type overloads - [`KT-79611`](https://youtrack.jetbrains.com/issue/KT-79611) "IllegalStateException: couldn't find inline method": Exception during incremental compilation - [`KT-78895`](https://youtrack.jetbrains.com/issue/KT-78895) Consider dropping isLocalInFunction and FirClassLikeDeclaration.isLocal - [`KT-82040`](https://youtrack.jetbrains.com/issue/KT-82040) Native: ClassCastException: PointerInputChange - [`KT-81924`](https://youtrack.jetbrains.com/issue/KT-81924) K2: "Cannot infer type for this parameter", "Overload resolution ambiguity between candidates" - [`KT-80864`](https://youtrack.jetbrains.com/issue/KT-80864) K2: Missing `Val cannot be reassigned` diagnostic for Java final fields (crashes in runtime with `IllegalAccessError`) - [`KT-71420`](https://youtrack.jetbrains.com/issue/KT-71420) Report error when reified type parameter is inferred to intersection type - [`KT-79451`](https://youtrack.jetbrains.com/issue/KT-79451) Rework approach to recursive types approximation - [`KT-78413`](https://youtrack.jetbrains.com/issue/KT-78413) Kotlin Debugger: value classes as context parameters have incorrect names in Variables View during debugging - [`KT-82138`](https://youtrack.jetbrains.com/issue/KT-82138) Debugger: Cannot evaluate JvmInline value class parameter - [`KT-82381`](https://youtrack.jetbrains.com/issue/KT-82381) ArrayIndexOutOfBoundsException while FirDiagnosticsCompilerResultsReporter tries to print code as part of a warning log - [`KT-81068`](https://youtrack.jetbrains.com/issue/KT-81068) Corrupted Unicode paths passed or used in the compiler - [`KT-79783`](https://youtrack.jetbrains.com/issue/KT-79783) KDoc parser: Links aren't rendered if the line has an indent of 4 or more - [`KT-80549`](https://youtrack.jetbrains.com/issue/KT-80549) Call of Java method with type parameter bounds: Expected FirResolvedTypeRef with ConeKotlinType but was FirJavaTypeRef - [`KT-82132`](https://youtrack.jetbrains.com/issue/KT-82132) False-positive type mismatch with -language-version 2.2 - [`KT-81988`](https://youtrack.jetbrains.com/issue/KT-81988) K2: Any?.toString() causes NPE inside lambda with Java - [`KT-81652`](https://youtrack.jetbrains.com/issue/KT-81652) Native: ClassCastException: ApplicationForegroundStateListener.Companion - [`KT-76479`](https://youtrack.jetbrains.com/issue/KT-76479) Backend. JVM: Report errors on exposure of types in inline functions - [`KT-82022`](https://youtrack.jetbrains.com/issue/KT-82022) K/N: Unexpected "Annotation `@JvmInline` is missing on actual declaration" warning with value classes - [`KT-80250`](https://youtrack.jetbrains.com/issue/KT-80250) ISE: flow for PostponedLambdaExitNode not initialized - traversing nodes in wrong order? - [`KT-76344`](https://youtrack.jetbrains.com/issue/KT-76344) Drop language version 1.9 for non-JVM platforms - [`KT-76343`](https://youtrack.jetbrains.com/issue/KT-76343) Drop language version 1.8 - [`KT-80330`](https://youtrack.jetbrains.com/issue/KT-80330) K2: NPE at org.jetbrains.kotlin.fir.resolve.calls.FirCallResolver.createResolvedNamedReference - [`KT-80400`](https://youtrack.jetbrains.com/issue/KT-80400) K2: AbstractMethodError on fun interface implementation inheriting from an interface compiled with -jvm-default=disable - [`KT-9111`](https://youtrack.jetbrains.com/issue/KT-9111) Improve diagnostic for call with access to outer class from nested class - [`KT-78280`](https://youtrack.jetbrains.com/issue/KT-78280) Implement the sourceless `KtDiagnostic`s - [`KT-74999`](https://youtrack.jetbrains.com/issue/KT-74999) K2: KotlinNothingValueException within Extension Function - [`KT-81254`](https://youtrack.jetbrains.com/issue/KT-81254) "AssertionError: There should be at least one non-stub type to compute common supertype": Parser issue during generic type inference - [`KT-53237`](https://youtrack.jetbrains.com/issue/KT-53237) NI: Frontend ignores generic bound when inferring types - [`KT-81186`](https://youtrack.jetbrains.com/issue/KT-81186) Only allow local type aliases in REPL/scripts until full stabilization - [`KT-80929`](https://youtrack.jetbrains.com/issue/KT-80929) IC Native: Undefined symbols on ktor - [`KT-81657`](https://youtrack.jetbrains.com/issue/KT-81657) K2: put warning about "exposing package-private in internal" under experimental language feature - [`KT-81241`](https://youtrack.jetbrains.com/issue/KT-81241) Konanc exit while lowering org.jetbrains.kotlin.ir.util.IrUtilsKt.remapTypeParameters - [`KT-74819`](https://youtrack.jetbrains.com/issue/KT-74819) K2: False-positive overload resolution ambiguity for flatMap inside PCLA - [`KT-81547`](https://youtrack.jetbrains.com/issue/KT-81547) Stabilize DFA-based exhaustiveness - [`KT-79274`](https://youtrack.jetbrains.com/issue/KT-79274) Frontend implementation of name-based destructuring - [`KT-79506`](https://youtrack.jetbrains.com/issue/KT-79506) Contract for getter and setter doesn't work if a property is called from another module - [`KT-58988`](https://youtrack.jetbrains.com/issue/KT-58988) K2: Deprecate exposing package-private parameter of internal method - [`KT-80711`](https://youtrack.jetbrains.com/issue/KT-80711) IC Native: NPE during link on ktor - [`KT-77727`](https://youtrack.jetbrains.com/issue/KT-77727) Move some of the extra checkers to the default list - [`KT-76136`](https://youtrack.jetbrains.com/issue/KT-76136) Switch latest stable version in Kotlin project to 2.3 - [`KT-81257`](https://youtrack.jetbrains.com/issue/KT-81257) Native: "Unexpected boolean predicate" when generating 'static\_cache' - [`KT-81525`](https://youtrack.jetbrains.com/issue/KT-81525) Report REDUNDANT\_SPREAD\_OPERATOR on (\*) instead of argument expression - [`KT-81522`](https://youtrack.jetbrains.com/issue/KT-81522) Fix Light Tree `SPREAD_OPERATOR` diagnostic positioning - [`KT-77008`](https://youtrack.jetbrains.com/issue/KT-77008) K2: Incorrectly force casting to a wrong type - [`KT-78127`](https://youtrack.jetbrains.com/issue/KT-78127) K2: Too precise inference for if/when with expected type in assignment - [`KT-80208`](https://youtrack.jetbrains.com/issue/KT-80208) K2: ClassCastException: "class java.util.ArrayList cannot be cast to class java.lang.Void" type inference picks Void for generic function - [`KT-75797`](https://youtrack.jetbrains.com/issue/KT-75797) Native: find a way to handle generates C bridges in inline functions - [`KT-78819`](https://youtrack.jetbrains.com/issue/KT-78819) K2: False positive ABSTRACT\_MEMBER\_NOT\_IMPLEMENTED in KJK hierarchy - [`KT-80003`](https://youtrack.jetbrains.com/issue/KT-80003) Kotlin/Native: deprecate eager GlobalData initialization - [`KT-79231`](https://youtrack.jetbrains.com/issue/KT-79231) Inconsistent InnerClass entry flags for abstract inner enum - [`KT-20677`](https://youtrack.jetbrains.com/issue/KT-20677) Improve diagnostic about implicit default constructor absence for expected annotation class - [`KT-81385`](https://youtrack.jetbrains.com/issue/KT-81385) Missing error of nullable expression in class literal in case of reified type parameter - [`KT-81251`](https://youtrack.jetbrains.com/issue/KT-81251) Smartcast doesn't work for an effectively private inline function - [`KT-81245`](https://youtrack.jetbrains.com/issue/KT-81245) Automatic smart cast on properties with EBF is allowed on inlined property accessors - [`KT-81222`](https://youtrack.jetbrains.com/issue/KT-81222) Custom getter is allowed on a property with redundant EBF - [`KT-80795`](https://youtrack.jetbrains.com/issue/KT-80795) Wrong type cast is added for IMPLICIT\_COERCION\_TO\_UNIT - [`KT-81141`](https://youtrack.jetbrains.com/issue/KT-81141) Fix FirUnsupportedArrayLiteralChecker to forbid array literals inside non-annotation contexts - [`KT-81383`](https://youtrack.jetbrains.com/issue/KT-81383) Return type of anonymous function used as `run` argument is incorrectly inferred to `Nothing` - [`KT-80577`](https://youtrack.jetbrains.com/issue/KT-80577) "Return type mismatch" for self-referential types used as generic parameters - [`KT-75215`](https://youtrack.jetbrains.com/issue/KT-75215) KDoc: references from `@param` tag are rendered as plain text - [`KT-79887`](https://youtrack.jetbrains.com/issue/KT-79887) K2 Compiler Internal Error in 'FirFakeOverrideGenerator.checkStatusIsResolved' Method - [`KT-78125`](https://youtrack.jetbrains.com/issue/KT-78125) false-negative shadowed contextual overload warning on local declarations - [`KT-81198`](https://youtrack.jetbrains.com/issue/KT-81198) Move type and type parameter annotations from jvm\_metadata.proto to metadata.proto - [`KT-81057`](https://youtrack.jetbrains.com/issue/KT-81057) Wrong handling of boxing during redundant casts optimization - [`KT-81191`](https://youtrack.jetbrains.com/issue/KT-81191) K2: "null cannot be cast to non-null type ConeTypeParameterLookupTag" with invalid code - [`KT-80285`](https://youtrack.jetbrains.com/issue/KT-80285) IJ monorepo: broken compilation after 2.2.20-RC update - [`KT-81115`](https://youtrack.jetbrains.com/issue/KT-81115) Allow converting lambda with explicit parameter when assigning to variable of an extension function type - [`KT-74588`](https://youtrack.jetbrains.com/issue/KT-74588) Redundant checkNotNull intrinsics instructions for Java generic methods - [`KT-78390`](https://youtrack.jetbrains.com/issue/KT-78390) Unmute `FusStatisticsIT.testKotlinxPlugins()` after AtomicFU updates `kotlin-metadata-jvm` - [`KT-79369`](https://youtrack.jetbrains.com/issue/KT-79369) Forbid typealiasing for all compiler-required annotations - [`KT-69294`](https://youtrack.jetbrains.com/issue/KT-69294) K2: Report `CONSTRUCTOR_OR_SUPERTYPE_ON_TYPEALIAS_WITH_TYPE_PROJECTION_ERROR` instead of `EXPANDED_TYPE_CANNOT_BE_INHERITED` after switching to LV 2.2 - [`KT-81064`](https://youtrack.jetbrains.com/issue/KT-81064) Wrong safe call null check handling during redundant casts optimization - [`KT-80871`](https://youtrack.jetbrains.com/issue/KT-80871) StackOverflowError on AnnotationTarget.TYPE - [`KT-80908`](https://youtrack.jetbrains.com/issue/KT-80908) K2: Compiling type annotation with self-annotated vararg fail with exception - [`KT-81018`](https://youtrack.jetbrains.com/issue/KT-81018) ISE "IR class for Foo not found" on missing dependency when lowering SAM constructor - [`KT-80936`](https://youtrack.jetbrains.com/issue/KT-80936) NON\_PUBLIC\_CALL\_FROM\_PUBLIC\_INLINE : `@PublishedApi` doesn't work for fun interfaces - [`KT-75748`](https://youtrack.jetbrains.com/issue/KT-75748) StackOverflowError when reading array from metadata annotations - [`KT-80606`](https://youtrack.jetbrains.com/issue/KT-80606) KotlinIllegalArgumentExceptionWithAttachments when using property itself in explicit backing field initialization - [`KT-80940`](https://youtrack.jetbrains.com/issue/KT-80940) K2: Exception in FIR2IR with AnnotationTarget.TYPE with self-annotated non-vararg default argument and usage in child module - [`KT-80538`](https://youtrack.jetbrains.com/issue/KT-80538) KaFirDiagnostic.EmptyRange doesn't work in most of the cases - [`KT-80524`](https://youtrack.jetbrains.com/issue/KT-80524) Class is not abstract and does not implement abstract member when compiling with kotlinc-jklib - [`KT-80597`](https://youtrack.jetbrains.com/issue/KT-80597) Apply fix for CVE-2024-7254 to our fork of protobuf 2.6.1 - [`KT-80849`](https://youtrack.jetbrains.com/issue/KT-80849) K2: `ConstValueProviderImpl` doesn't distinguish files with same name and package - [`KT-80602`](https://youtrack.jetbrains.com/issue/KT-80602) Exhaustiveness checker improvements for 2.3 - [`KT-80735`](https://youtrack.jetbrains.com/issue/KT-80735) Support || return/throw shortcut in unsed return value checker - [`KT-79651`](https://youtrack.jetbrains.com/issue/KT-79651) Report a warning about an unused return value only on the function name - [`KT-80719`](https://youtrack.jetbrains.com/issue/KT-80719) False positive: "Redundant visibility modifier": when overriding protected methods as "public" - [`KT-80434`](https://youtrack.jetbrains.com/issue/KT-80434) K2: DSL marker doesn't work with lambda fields - [`KT-80383`](https://youtrack.jetbrains.com/issue/KT-80383) Getter without a body is allowed on a property with an explicit backing field - [`KT-80446`](https://youtrack.jetbrains.com/issue/KT-80446) Explicit visibility modifiers are allowed on EBF - [`KT-80378`](https://youtrack.jetbrains.com/issue/KT-80378) ClassCastException on callable reference to a property with EBF - [`KT-80377`](https://youtrack.jetbrains.com/issue/KT-80377) Fir2Ir: "Cannot determine expected receiver type" for callable reference to a property with EBF outside of class - [`KT-80455`](https://youtrack.jetbrains.com/issue/KT-80455) K2: StackOverflowError in when exhaustiveness checker on red code - [`KT-72862`](https://youtrack.jetbrains.com/issue/KT-72862) \[Native caches] Umbrella for failing codegen/box tests for corner cases in synthetic accessors - [`KT-20278`](https://youtrack.jetbrains.com/issue/KT-20278) NO\_TYPE\_ARGUMENTS\_ON\_RHS: Confusing diagnostic for inner class of generic outer class - [`KT-80418`](https://youtrack.jetbrains.com/issue/KT-80418) Property with EBF with functional type isn't resolved if its type is Any - [`KT-80469`](https://youtrack.jetbrains.com/issue/KT-80469) Functional type from property is always used for explicit backing field - [`KT-80535`](https://youtrack.jetbrains.com/issue/KT-80535) Missing INITIALIZER\_TYPE\_MISMATCH for EBF - [`KT-80445`](https://youtrack.jetbrains.com/issue/KT-80445) Private visibility is possible for a property with EBF - [`KT-80164`](https://youtrack.jetbrains.com/issue/KT-80164) Move name generation for unnamed context parameters to frontend - [`KT-80684`](https://youtrack.jetbrains.com/issue/KT-80684) Line breaks are lost in multi-line diagnostic messages since 2.3.0 - [`KT-78112`](https://youtrack.jetbrains.com/issue/KT-78112) RETURN\_VALUE\_NOT\_USED is reported for local function even if it isn't marked with annotation in CHECKER mode - [`KT-48311`](https://youtrack.jetbrains.com/issue/KT-48311) Incorrect LINENUMBER after if with a suspend call - [`KT-80688`](https://youtrack.jetbrains.com/issue/KT-80688) Bad SourceDebugExtension caused by enhanced coroutines debugging - [`KT-73851`](https://youtrack.jetbrains.com/issue/KT-73851) Native: compilation fails with ClassCastException with genericSafeCasts=true - [`KT-77593`](https://youtrack.jetbrains.com/issue/KT-77593) Add a warning when `@IgnorableReturnValue` is inconsistent between expect/actual functions - [`KT-79386`](https://youtrack.jetbrains.com/issue/KT-79386) Confusing error message when named parameters are used for java method calls - [`KT-80600`](https://youtrack.jetbrains.com/issue/KT-80600) K2: Private and final modifiers are allowed on setter of open delegated property - [`KT-77101`](https://youtrack.jetbrains.com/issue/KT-77101) Invoke on callable reference is considered ignorable - [`KT-79923`](https://youtrack.jetbrains.com/issue/KT-79923) Remove lookup of `@IgnorableReturnValue` annotation from FirReturnValueOverrideChecker - [`KT-80517`](https://youtrack.jetbrains.com/issue/KT-80517) Synthetic kotlin.Any members in data classes are missing `@MustUseReturnValue` - [`KT-80194`](https://youtrack.jetbrains.com/issue/KT-80194) VAR\_TYPE\_MISMATCH\_ON\_OVERRIDE: doesn't mention the inferred type - [`KT-80484`](https://youtrack.jetbrains.com/issue/KT-80484) K2: ClassCastException due to fake source for implicit lambda parameter (RedundantNullableChecker) - [`KT-80592`](https://youtrack.jetbrains.com/issue/KT-80592) `UninitializedPropertyAccessException` when anayzing annotations on members of anonymous classes - [`KT-80399`](https://youtrack.jetbrains.com/issue/KT-80399) Anonymous Kotlin class incorrectly warns about deprecated java override despite '`@Deprecated`' annotation - [`KT-79610`](https://youtrack.jetbrains.com/issue/KT-79610) Adding CocoaPod to Kotlin/Native MPP triggers IR serialization failure and commonizer errors - [`KT-79951`](https://youtrack.jetbrains.com/issue/KT-79951) Infinite loop in parsing incomplete full form destructuring - [`KT-79866`](https://youtrack.jetbrains.com/issue/KT-79866) kotlinc 2.2.0 silently emits 'NonExistentClass' instead of reporting an error - [`KT-79777`](https://youtrack.jetbrains.com/issue/KT-79777) Argument type mismatch on value of complex type with a captured raw type argument - [`KT-78664`](https://youtrack.jetbrains.com/issue/KT-78664) False positive VARIABLE\_NEVER\_READ and ASSIGNED\_VALUE\_IS\_NEVER\_READ on function type variable with splited declaration and assignment - [`KT-79496`](https://youtrack.jetbrains.com/issue/KT-79496) False positive "when must be exhaustive" in triangle interface/class hierarchy - [`KT-79774`](https://youtrack.jetbrains.com/issue/KT-79774) KtDestructuringDeclaration.getLPar & getRPar are broken - [`KT-80391`](https://youtrack.jetbrains.com/issue/KT-80391) K2: Only one context parameter is mentioned in the \[NO\_CONTEXT\_ARGUMENT] diagnostic - [`KT-79785`](https://youtrack.jetbrains.com/issue/KT-79785) ktypew:kotlin.collections.List already exists error using Swift Export - [`KT-78879`](https://youtrack.jetbrains.com/issue/KT-78879) "Sealed types cannot be instantiated": Can't instantiate Java-defined sealed Class from Kotlin - [`KT-21598`](https://youtrack.jetbrains.com/issue/KT-21598) Extension is shadowed by member should not be reported when member is deprecated with HIDDEN level - [`KT-79622`](https://youtrack.jetbrains.com/issue/KT-79622) FUNCTION\_EXPECTED: Misleading 'expression cannot be invoked as a function' when inaccessible with private lambda - [`KT-80255`](https://youtrack.jetbrains.com/issue/KT-80255) \[EXTENSION\_FUNCTION\_IN\_EXTERNAL\_DECLARATION] can be attached to the receiver type of a functional type - [`KT-79816`](https://youtrack.jetbrains.com/issue/KT-79816) Java Interfaces implemented by delegation have non-null return checks - [`KT-80177`](https://youtrack.jetbrains.com/issue/KT-80177) Improve message of RECEIVER\_SHADOWED\_BY\_CONTEXT\_PARAMETER in case of member extension - [`KT-79770`](https://youtrack.jetbrains.com/issue/KT-79770) There is no RECEIVER\_SHADOWED\_BY\_CONTEXT\_PARAMETER if the usage of fun is from inside the class - [`KT-79430`](https://youtrack.jetbrains.com/issue/KT-79430) False positive EXTENSION\_SHADOWED\_BY\_MEMBER on overridden member extension - [`KT-62934`](https://youtrack.jetbrains.com/issue/KT-62934) Incorrect line mapping inside inline lambda after non-local return - [`KT-79545`](https://youtrack.jetbrains.com/issue/KT-79545) K2: no error on crossinline lambda usage in anonymous object base constructor call - [`KT-79643`](https://youtrack.jetbrains.com/issue/KT-79643) HAS\_NEXT\_FUNCTION\_AMBIGUITY and NEXT\_AMBIGUITY diagnostics are always ignored in favor of HAS\_NEXT\_FUNCTION\_NONE\_APPLICABLE and NEXT\_NONE\_APPLICABLE - [`KT-79327`](https://youtrack.jetbrains.com/issue/KT-79327) Modifier 'private' is not applicable to 'value parameter' is reported for context parameters - [`KT-76453`](https://youtrack.jetbrains.com/issue/KT-76453) K2 IDE: autocomplete freeze - [`KT-77182`](https://youtrack.jetbrains.com/issue/KT-77182) A function in a file annotated with `@file`:MustUseReturnValue doesn't produce a warning when it is used from compiled code - [`KT-78541`](https://youtrack.jetbrains.com/issue/KT-78541) Jspecify: Unsound platform type despite `@NullMarked` for an override with a generic-subclass return type - [`KT-79672`](https://youtrack.jetbrains.com/issue/KT-79672) 'when expression must be exhaustive' even after using 'require()' - [`KT-71306`](https://youtrack.jetbrains.com/issue/KT-71306) K2 IDE / Kotlin Debugger: “Cannot find local variable 'block' with type kotlin.jvm.functions.Function0” on evaluating lambda arg inside inline function - [`KT-76991`](https://youtrack.jetbrains.com/issue/KT-76991) K2 IDE / Kotlin Debugger: ISE “Couldn't find declaration file for” on evaluating local fun when the scope has also inline fun from another file call - [`KT-79877`](https://youtrack.jetbrains.com/issue/KT-79877) K2 IDE / Kotlin Debugger: failed evaluations of a code fragment capturing local data class - [`KT-77401`](https://youtrack.jetbrains.com/issue/KT-77401) \[FIR] `ParameterNameTypeAttribute.name` doesn't support `@ParameterName` with compile-time constant property argument - [`KT-79682`](https://youtrack.jetbrains.com/issue/KT-79682) Fix partially uninitialized locals after coroutine spills insertion - [`KT-79562`](https://youtrack.jetbrains.com/issue/KT-79562) NPE when passing non-lambda argument of nullable non-suspend function type into function that accepts nullable suspend function type - [`KT-79693`](https://youtrack.jetbrains.com/issue/KT-79693) NotImplementedError: An operation is not implemented: Unknown file with KMP separate compilation - [`KT-79662`](https://youtrack.jetbrains.com/issue/KT-79662) Unused return value checker doesn't work for com.google.errorprone.annotations.CheckReturnValue - [`KT-79781`](https://youtrack.jetbrains.com/issue/KT-79781) Missing MISSING\_DEPENDENCY\_CLASS when using type alias with inaccessible RHS - [`KT-77772`](https://youtrack.jetbrains.com/issue/KT-77772) Only report exposed type on qualifier if it's resolved to an object - [`KT-79765`](https://youtrack.jetbrains.com/issue/KT-79765) K2. Do not report ignore return value for unresolved reference - [`KT-79017`](https://youtrack.jetbrains.com/issue/KT-79017) False negative REDECLARATION on private nested class - [`KT-79519`](https://youtrack.jetbrains.com/issue/KT-79519) Nested type alias is unreachable from another module - [`KT-72039`](https://youtrack.jetbrains.com/issue/KT-72039) StackOverflowError on calling keySet on a Kotlin subclass of Java subclass of ConcurrentHashMap - [`KT-75843`](https://youtrack.jetbrains.com/issue/KT-75843) K2: incorrect line numbers in an if-expression with a super-call - [`KT-77504`](https://youtrack.jetbrains.com/issue/KT-77504) Add a warning when `@IgnorableReturnValue` is inconsistent on overrides - [`KT-78389`](https://youtrack.jetbrains.com/issue/KT-78389) Perform version 2.3 boostrapping - [`KT-79092`](https://youtrack.jetbrains.com/issue/KT-79092) Crash on default argument in function in fun interface - [`KT-77729`](https://youtrack.jetbrains.com/issue/KT-77729) Package-level `@NullMarked` does not work when kotlinc sees .java *source* files - [`KT-79013`](https://youtrack.jetbrains.com/issue/KT-79013) False negative `NOT_YET_SUPPORTED_IN_INLINE` on inline local functions inside inline functions - [`KT-79139`](https://youtrack.jetbrains.com/issue/KT-79139) False positive CONFLICTING\_OVERLOADS for context parameters instead of receivers - [`KT-35305`](https://youtrack.jetbrains.com/issue/KT-35305) Address the overload conflict resolution between unsigned and non-primitive types - [`KT-42096`](https://youtrack.jetbrains.com/issue/KT-42096) No diagnostic reported on `inline` modifier on an enum entry - [`KT-79355`](https://youtrack.jetbrains.com/issue/KT-79355) Failed to fix the problem of desugared `inc` with new reverse implies returns contract - [`KT-79277`](https://youtrack.jetbrains.com/issue/KT-79277) Implies returns contract doesn't affect the return type of the function if it is in the argument position - [`KT-79271`](https://youtrack.jetbrains.com/issue/KT-79271) Implies returns contract doesn't impact exhaustiveness - [`KT-79218`](https://youtrack.jetbrains.com/issue/KT-79218) SMARTCAST\_IMPOSSIBLE for top‑level extension‑property getter despite returnsNotNull contract - [`KT-79220`](https://youtrack.jetbrains.com/issue/KT-79220) returnsNotNull contract ignored on extension function with nullable receiver - [`KT-79354`](https://youtrack.jetbrains.com/issue/KT-79354) IllegalStateException: Debug metadata version mismatch. Expected: 1, got 2 with compiler 2.2.20-Beta1 and stdlib 2.2.0 - [`KT-77986`](https://youtrack.jetbrains.com/issue/KT-77986) K2: False negative: "Local classes are not yet supported in inline functions" - [`KT-79456`](https://youtrack.jetbrains.com/issue/KT-79456) Redeclaration conflict checks of private top-level classifiers rely on an incorrect containing file - [`KT-79125`](https://youtrack.jetbrains.com/issue/KT-79125) RVC full mode: delegated interfaces are not checked - [`KT-63720`](https://youtrack.jetbrains.com/issue/KT-63720) Coroutine debugger: do not optimise out local variables - [`KT-78595`](https://youtrack.jetbrains.com/issue/KT-78595) type variable leak on a generic property as a call argument given an unstable smart cast - [`KT-79076`](https://youtrack.jetbrains.com/issue/KT-79076) 'IllegalStateException: Cannot serialize error type: ERROR CLASS: Uninferred type' with Exposed column using recursive generic type - [`KT-59807`](https://youtrack.jetbrains.com/issue/KT-59807) K2: Replicate the MUST\_BE\_LATEINIT logic from K1 - [`KT-76782`](https://youtrack.jetbrains.com/issue/KT-76782) K2: Incorrect resolve into unrelated invoke operator with wrong diagnostic - [`KT-78066`](https://youtrack.jetbrains.com/issue/KT-78066) TYPE\_PARAMETER\_OF\_PROPERTY\_NOT\_USED\_IN\_RECEIVER error message does not account for context parameters - [`KT-76065`](https://youtrack.jetbrains.com/issue/KT-76065) Drop JavaTypeParameterDefaultRepresentationWithDNN feature - [`KT-77808`](https://youtrack.jetbrains.com/issue/KT-77808) Inference: recheck the code about DNN-related hacks - [`KT-24202`](https://youtrack.jetbrains.com/issue/KT-24202) NOTHING\_TO\_OVERRIDE if super-class reference misses generic arguments - [`KT-78909`](https://youtrack.jetbrains.com/issue/KT-78909) K2: Missing diagnostics \[CYCLIC\_INHERITANCE\_HIERARCHY] for recursive class inheritance leads to StackOverflowError - [`KT-75969`](https://youtrack.jetbrains.com/issue/KT-75969) java.lang.IllegalArgumentException: source must not be null on red code - [`KT-76902`](https://youtrack.jetbrains.com/issue/KT-76902) Omit type-use annotations from diagnostics - [`KT-17460`](https://youtrack.jetbrains.com/issue/KT-17460) Diagnostics and intention on suspend function that is overriden with non-suspend one. - [`KT-56665`](https://youtrack.jetbrains.com/issue/KT-56665) K2: false positive RECURSIVE\_TYPEALIAS\_EXPANSION - [`KT-78932`](https://youtrack.jetbrains.com/issue/KT-78932) Contracts are allowed for open and overridden property accessors - [`KT-77203`](https://youtrack.jetbrains.com/issue/KT-77203) FIR: Consider adding destructured type to all COMPONENT\_FUNCTION\_\* diagnostics - [`KT-77685`](https://youtrack.jetbrains.com/issue/KT-77685) "IllegalArgumentException: Sequence contains more than one matching element" - [`KT-78452`](https://youtrack.jetbrains.com/issue/KT-78452) Drop redundant frontend structures after fir2ir conversion - [`KT-70507`](https://youtrack.jetbrains.com/issue/KT-70507) Should parentheses prevent from plus/set operator desugaring? ##### Compose compiler ##### New features - [`98d3907`](https://github.com/JetBrains/kotlin/commit/98d39077a9b19c1e6c112dc59982175095ac9f41) Introduce a compose group analysis module that produces a proguard/R8 mapping from group keys in bytecode. ##### Fixes - [`b/419049140`](https://issuetracker.google.com/issues/419049140) Disabled memoization in `try` blocks - [`KT-81081`](https://youtrack.jetbrains.com/issue/KT-81081) Generate Compose-specific proguard mappings when Compose compiler plugin is applied. - [`b/431025881`](https://issuetracker.google.com/issues/431025881) \[Compose] Clean up runtime version checker - [`b/365922168`](https://issuetracker.google.com/issues/365922168) Add `java.util.Locale` to the list of known stable classes - [`b/407549020`](https://issuetracker.google.com/issues/407549020) Introduce a registry of known stable markers - [`b/417989445`](https://issuetracker.google.com/issues/417989445) Added a diagnostic to restrict usages of `runCatching` in `@Composable` functions - [`KT-80294`](https://youtrack.jetbrains.com/issue/KT-80294) Fix crash with inline `@Composable` function reference - [`b/430140896`](https://issuetracker.google.com/issues/430140896) Fix IrSourcePrinter output for when branch check and typechecks - [`CMP-9167`](https://youtrack.jetbrains.com/issue/CMP-9167) iOS: Platform declaration clash: The following functions have the same IR signature ##### IDE. Gradle Integration - [`KT-46273`](https://youtrack.jetbrains.com/issue/KT-46273) MPP: Don't fail import for case of missed platform in source set structure - [`KT-46417`](https://youtrack.jetbrains.com/issue/KT-46417) \[UNRESOLVED\_REFERENCE] For project to project dependencies of native platform test source sets - [`KT-44845`](https://youtrack.jetbrains.com/issue/KT-44845) After update to Kotlin 1.4.30 all external dependencies is unresolved in IDE with kotlin.mpp.enableGranularSourceSetsMetadata=true - [`KT-46142`](https://youtrack.jetbrains.com/issue/KT-46142) K/N distribution is unavailable from IDE with multiplatform hierarchical project structure enabled ##### IR. Actualizer - [`KT-77337`](https://youtrack.jetbrains.com/issue/KT-77337) `IrNoExpectSymbolsHandler` finds expect class reference after enabling annotation traversal in IR - [`KT-80002`](https://youtrack.jetbrains.com/issue/KT-80002) Investigate the need for map copying in IrCommonToPlatformDependencyExtractor.kt - [`KT-80131`](https://youtrack.jetbrains.com/issue/KT-80131) KMP Separate Compilation: No override for FUN IR\_EXTERNAL\_DECLARATION\_STUB name:<get-size> - [`KT-80064`](https://youtrack.jetbrains.com/issue/KT-80064) KMP Separate Compilation: ClassCastException: class org.jetbrains.kotlin.ir.symbols.impl.IrTypeAliasSymbolImpl cannot be cast to class org.jetbrains.kotlin.ir.symbols.IrClassSymbol - [`KT-80051`](https://youtrack.jetbrains.com/issue/KT-80051) KMP Separate Compilation: Actualization of common dependencies failed on 'PROPERTY FAKE\_OVERRIDE name:modCount visibility:protected modality:FINAL \[fake\_override,var]' - [`KT-79998`](https://youtrack.jetbrains.com/issue/KT-79998) KMP Separate Compilation: java.lang.IllegalStateException: No override for FUN IR\_EXTERNAL\_DECLARATION\_STUB name:<get-message> ##### IR. Inlining ##### New Features - [`KT-70360`](https://youtrack.jetbrains.com/issue/KT-70360) KLIBs: Uniformly handle`typeOf()` calls at 1st/2nd stages of compilation ##### Performance Improvements - [`KT-69497`](https://youtrack.jetbrains.com/issue/KT-69497) Crossinline lambda is allocated on K/N & JS ##### Fixes - [`KT-78673`](https://youtrack.jetbrains.com/issue/KT-78673) Make fakeOverrideLocalGenericBase not using red code - [`KT-78537`](https://youtrack.jetbrains.com/issue/KT-78537) \[Inliner] Incorrect KFunction.name of a reference to inlined local function - [`KT-74892`](https://youtrack.jetbrains.com/issue/KT-74892) Investigate passing inline lambda as argument of another inline function - [`KT-81673`](https://youtrack.jetbrains.com/issue/KT-81673) False warnings about ABI change in dependencies in library mode in 2.3.0-Beta1 - [`KT-81713`](https://youtrack.jetbrains.com/issue/KT-81713) \[Inliner] Compilation of inline function with recursive call applied to TODO() fails with an internal error - [`KT-80653`](https://youtrack.jetbrains.com/issue/KT-80653) \[IR Inliner] Space: "Local declarations should've been popped out by this point" - [`KT-78392`](https://youtrack.jetbrains.com/issue/KT-78392) CommonPrefix: Add a way of stopping execution when one of the phases is unsuccessful - [`KT-80927`](https://youtrack.jetbrains.com/issue/KT-80927) \[Native] Review intrinsics with PublishedApi - [`KT-81070`](https://youtrack.jetbrains.com/issue/KT-81070) \[Inliner] kotlin/Any is unbound - [`KT-80628`](https://youtrack.jetbrains.com/issue/KT-80628) KLIB inliner: Not enough information about the "full" mode - [`KT-69516`](https://youtrack.jetbrains.com/issue/KT-69516) Double-inlining for Native: Enable visibility checks after 1st phase of inlining - [`KT-79334`](https://youtrack.jetbrains.com/issue/KT-79334) Unify intrinsics used on 1st phase of IR inliner in KLIB-based compilers - [`KT-80610`](https://youtrack.jetbrains.com/issue/KT-80610) KLIB inliner: Always apply cross-module inlining to pre-processed inline functions - [`KT-80565`](https://youtrack.jetbrains.com/issue/KT-80565) KLIB Inliner: Add a special annotation to prohibit inlining of marked inline functions in stdlib on 1st compilation phase - [`KT-80883`](https://youtrack.jetbrains.com/issue/KT-80883) \[Inliner] Run pre-serialization lowerings in all testrunners - [`KT-77876`](https://youtrack.jetbrains.com/issue/KT-77876) IrVisibilityChecker: Different set of exceptions for 1st and 2nd compilation stages - [`KT-80693`](https://youtrack.jetbrains.com/issue/KT-80693) \[IC] Split IC invalidation tests for cross-module IR Inliner - [`KT-79718`](https://youtrack.jetbrains.com/issue/KT-79718) KLIB inliner: Emit warning on generation of `public` synthetic accessor when running in "explicit API mode" - [`KT-80226`](https://youtrack.jetbrains.com/issue/KT-80226) \[IR Inliner] Generate constructor accessors as constructors, not static functions - [`KT-80692`](https://youtrack.jetbrains.com/issue/KT-80692) \[IC] Split IC invalidation tests for intra-module IR Inliner - [`KT-77103`](https://youtrack.jetbrains.com/issue/KT-77103) \[Inliner] IrLocalDelegatedProperty was not serialized, while its symbol and IrRichPropertyReference were. - [`KT-80537`](https://youtrack.jetbrains.com/issue/KT-80537) The expected error is not emitted from FirJsKlibSyntheticAccessorsTestGenerated and NativeKlibSyntheticAccessorsTestGenerated - [`KT-78903`](https://youtrack.jetbrains.com/issue/KT-78903) Unify `codegen/boxInline` tests with `codegen/box` - [`KT-78989`](https://youtrack.jetbrains.com/issue/KT-78989) Add missing PL tests for inline functions/property accessors - [`KT-79771`](https://youtrack.jetbrains.com/issue/KT-79771) kotlinx-coroutines-core: Public synthetic accessor generated with enabled KLIB IR inliner - [`KT-79680`](https://youtrack.jetbrains.com/issue/KT-79680) `IrConstructorSymbolImpl is unbound` in lambdaWithoutNonLocalControlflow\.kt - [`KT-70849`](https://youtrack.jetbrains.com/issue/KT-70849) Ensure correct debug info for intra-module IR inlining on the first compilation phase - [`KT-79800`](https://youtrack.jetbrains.com/issue/KT-79800) JS BE errors with default values when IR inliner is enabled - [`KT-79352`](https://youtrack.jetbrains.com/issue/KT-79352) Remove excessive validations from `ValidateAfterAll...` on the first stage - [`KT-76599`](https://youtrack.jetbrains.com/issue/KT-76599) Migrate `IrValidationAfterInliningAllFunctionsPhase` to the first stage of compilation - [`KT-78245`](https://youtrack.jetbrains.com/issue/KT-78245) Synthetic Accessors incorrectly copies default values - [`KT-72594`](https://youtrack.jetbrains.com/issue/KT-72594) \[JS]\[Native] Add IrInliningFacade to test runners ##### IR. Interpreter - [`KT-72356`](https://youtrack.jetbrains.com/issue/KT-72356) K2 Native: IllegalStateException when annotation has the same source range as a constant in another file - [`KT-72881`](https://youtrack.jetbrains.com/issue/KT-72881) K2: incorrect empty array as annotation argument when parameter has default value ##### IR. Tree ##### Fixes - [`KT-79371`](https://youtrack.jetbrains.com/issue/KT-79371) Fix handling of broken SAM conversion in PL with enabled Rich References - [`KT-81952`](https://youtrack.jetbrains.com/issue/KT-81952) "IllegalStateException: Callable reference with vararg should not appear at this stage" for callable references to functions with generic vararg parameters - [`KT-79739`](https://youtrack.jetbrains.com/issue/KT-79739) Static synthetic accessors inside generic classes access its type parameters - [`KT-78100`](https://youtrack.jetbrains.com/issue/KT-78100) Track and annotate internal annotations with `@PublishedApi` to enable annotation visibility validation - [`KT-80825`](https://youtrack.jetbrains.com/issue/KT-80825) Drop `IrSerializationSettings.reuseExistingSignaturesForSymbols` setting - [`KT-79807`](https://youtrack.jetbrains.com/issue/KT-79807) Broken IR tree invariants in IrReplSnippet after FIR2IR - [`KT-77819`](https://youtrack.jetbrains.com/issue/KT-77819) \[IR] Fine-tune IrValidator's run after Fir2IR and IR plugins - [`KT-70160`](https://youtrack.jetbrains.com/issue/KT-70160) Remove IrDeclaration.parents after Anvil update - [`KT-80454`](https://youtrack.jetbrains.com/issue/KT-80454) LocalDeclarationsLowering: Clean-up the dead code - [`KT-80819`](https://youtrack.jetbrains.com/issue/KT-80819) Rework IrFileValidator to use Hashmap instead of ClassValue - [`KT-80516`](https://youtrack.jetbrains.com/issue/KT-80516) Kotlin-like IR dump: Don't render tailrec as lateinit - [`KT-78856`](https://youtrack.jetbrains.com/issue/KT-78856) Refactor LocalDeclarationsLowering to split it in smaller parts - [`KT-79439`](https://youtrack.jetbrains.com/issue/KT-79439) KLIB stdlib symbols loading: Split the result of merging of IrBuiltins with BuiltinSymbolsBase hierarchy into two parts (for 1st & 2nd phases) - [`KT-79437`](https://youtrack.jetbrains.com/issue/KT-79437) KLIB stdlib symbols loading: Drop loading functions from IrBuiltins and migrate usages to SymbolFinder functions and lazy filtering - [`KT-79569`](https://youtrack.jetbrains.com/issue/KT-79569) Unexpected error during DFG phase in Native due to PL issue with SAM conversion represented by rich reference - [`KT-76601`](https://youtrack.jetbrains.com/issue/KT-76601) IrValidatorConfig should have all checks disabled by default - [`KT-69662`](https://youtrack.jetbrains.com/issue/KT-69662) Deduplicate function `createTemporaryVariable` - [`KT-79440`](https://youtrack.jetbrains.com/issue/KT-79440) KLIB stdlib symbols loading: Drop BuiltinSymbolsBase from plugin API - [`KT-78960`](https://youtrack.jetbrains.com/issue/KT-78960) \[FO] Limit static fake overrides generation for static functions - [`KT-76813`](https://youtrack.jetbrains.com/issue/KT-76813) IR validator: not all symbols/references are visited ##### JVM. Reflection - [`KT-79020`](https://youtrack.jetbrains.com/issue/KT-79020) Suspend lambdas return type is shown as ??? in reflection - [`KT-81967`](https://youtrack.jetbrains.com/issue/KT-81967) isSubtypeOf: ClassCastException: CapturedKType cannot be cast to class AbstractKType - [`KT-76521`](https://youtrack.jetbrains.com/issue/KT-76521) Reflection: change KType representation to avoid dependency on K1 - [`KT-81619`](https://youtrack.jetbrains.com/issue/KT-81619) Reflection: Function supertype of a FunctionN class has flexible type in new implementation - [`KT-74529`](https://youtrack.jetbrains.com/issue/KT-74529) Context parameters support in reflection - [`KT-80901`](https://youtrack.jetbrains.com/issue/KT-80901) Reflection: incorrect translation of raw types in the new implementation - [`KT-74624`](https://youtrack.jetbrains.com/issue/KT-74624) Reflection: KClassifier.createType(...) ignores annotations parameter - [`KT-80203`](https://youtrack.jetbrains.com/issue/KT-80203) Reflection: provide a way to use legacy K1-based implementation - [`KT-80236`](https://youtrack.jetbrains.com/issue/KT-80236) Reflection: KType.toString for raw types no longer renders "(raw)" - [`KT-79206`](https://youtrack.jetbrains.com/issue/KT-79206) Reflection: suspend functional type classifier is null ##### JavaScript ##### New Features - [`KT-80401`](https://youtrack.jetbrains.com/issue/KT-80401) Kotlin/JS support for `default export` in generated JavaScript - [`KT-79284`](https://youtrack.jetbrains.com/issue/KT-79284) Use BigInt64Array for LongArray - [`KT-79222`](https://youtrack.jetbrains.com/issue/KT-79222) K/JS: Allow using Long in exported declarations - [`KT-79394`](https://youtrack.jetbrains.com/issue/KT-79394) Add the possibility to write common external declarations between JS and WasmJS targets ##### Performance Improvements - [`KT-57128`](https://youtrack.jetbrains.com/issue/KT-57128) KJS: Use BigInt to represent Long values in ES6 mode ##### Fixes - [`KT-79928`](https://youtrack.jetbrains.com/issue/KT-79928) Allow JsModule/JsNonModule/JsQualifier invocation on per-entity level - [`KT-79514`](https://youtrack.jetbrains.com/issue/KT-79514) java.lang.IllegalStateException: IrClassSymbolImpl is unbound. Signature: kotlin.js/Promise|null\[0] on running jsBrowserTest - [`KT-82005`](https://youtrack.jetbrains.com/issue/KT-82005) KJS: "TypeError: callAgent.jsonRpcCall\_ij3z26\_k$ is not a function" after code change in 2.3.0-Beta1/2 - [`KT-79359`](https://youtrack.jetbrains.com/issue/KT-79359) Kotlin/JS: Suspending function doesn’t return Unit on es2015 - [`KT-79089`](https://youtrack.jetbrains.com/issue/KT-79089) KJS: Could not load reporter / Cannot find module 'mocha' when running jsNode tests - [`KT-56281`](https://youtrack.jetbrains.com/issue/KT-56281) KJS: Can't export suspend functions - [`KT-79926`](https://youtrack.jetbrains.com/issue/KT-79926) Wrong export of interfaces with companions with ES Modules - [`KT-80168`](https://youtrack.jetbrains.com/issue/KT-80168) Allow `@JsStatic` inside interface companions - [`KT-70222`](https://youtrack.jetbrains.com/issue/KT-70222) Remove legacy JS BE-related CLI flags - [`KT-81424`](https://youtrack.jetbrains.com/issue/KT-81424) Kotlin/JS: Cannot Get / in a simple running application - [`KT-80873`](https://youtrack.jetbrains.com/issue/KT-80873) KJS: Stdlib requires ES2020-compatible JS engine due to BigInt type literal - [`KT-81066`](https://youtrack.jetbrains.com/issue/KT-81066) Wasm, JS: Remove redundant logging in compiler output - [`KT-72833`](https://youtrack.jetbrains.com/issue/KT-72833) KJS: Source maps have incorrect sources paths in `per-file` - [`KT-74055`](https://youtrack.jetbrains.com/issue/KT-74055) KJS: `@JsPlainObject` adds JS code even if marked interface is not used - [`KT-72474`](https://youtrack.jetbrains.com/issue/KT-72474) KJS: `@JsPlainObject` doesn't honour -XXLanguage:+JsAllowInvalidCharsIdentifiersEscaping - [`KT-79644`](https://youtrack.jetbrains.com/issue/KT-79644) BigInt enabled for ES 2015 despite being an ES 2020 feature - [`KT-52771`](https://youtrack.jetbrains.com/issue/KT-52771) KJS: Pair should be exported to JavaScript - [`KT-79704`](https://youtrack.jetbrains.com/issue/KT-79704) Unify variance rendering between JS and other backends - [`KT-69297`](https://youtrack.jetbrains.com/issue/KT-69297) Deprecate referencing inlineable lambdas in `js()` calls - [`KT-80086`](https://youtrack.jetbrains.com/issue/KT-80086) \[k/js] Resolving imported string literals - [`KT-79066`](https://youtrack.jetbrains.com/issue/KT-79066) \[Kotlin/JS] jsNodeTest fails with SyntaxError when a test file has `@file`:JsExport and useEsModules() is enabled - [`KT-77385`](https://youtrack.jetbrains.com/issue/KT-77385) Investigate partial linkage problems for JS HMPP tests - [`KT-79628`](https://youtrack.jetbrains.com/issue/KT-79628) Remove IR nodes from ExportModel - [`KT-79916`](https://youtrack.jetbrains.com/issue/KT-79916) K/JS: "Uncaught TypeError" when using 'Xes-long-as-bigint' in compose-html - [`KT-79050`](https://youtrack.jetbrains.com/issue/KT-79050) KJS / IC: "Unexpected body of primary constructor for processing irClass" - [`KT-79977`](https://youtrack.jetbrains.com/issue/KT-79977) KJS: Long.rotateLeft returns incorrect result when BigInts are enabled - [`KT-78831`](https://youtrack.jetbrains.com/issue/KT-78831) AbstractFunctionReferencesLowering: fragile fake override generation - [`KT-52230`](https://youtrack.jetbrains.com/issue/KT-52230) KSJ IR: Applying identity equality operator to Longs always returns false - [`KT-6675`](https://youtrack.jetbrains.com/issue/KT-6675) KotlinJS: toInt() on external Long throws error - [`KT-79184`](https://youtrack.jetbrains.com/issue/KT-79184) K/JS: Further intrinsify BigInt-backed Long operations ##### Klibs ##### New Features - [`KT-80761`](https://youtrack.jetbrains.com/issue/KT-80761) K2: \[K/N] Should reported klib usage include inheritance ##### Performance Improvements - [`KT-80861`](https://youtrack.jetbrains.com/issue/KT-80861) \[Klib] Deduplicate IrFileEntry.name - [`KT-80866`](https://youtrack.jetbrains.com/issue/KT-80866) \[Klib] Optimize size of IrFileEntry.line\_start\_offset - [`KT-80438`](https://youtrack.jetbrains.com/issue/KT-80438) Uncached KlibMetadataClassDataFinder.findClassData ##### Fixes - [`KT-64237`](https://youtrack.jetbrains.com/issue/KT-64237) Klib metadata: migrate to using the common annotations instead of klib-specific extensions in the compiler - [`KT-80099`](https://youtrack.jetbrains.com/issue/KT-80099) KLIB resolver: Could not find file because of missing `klib` extension in resolved symlink path - [`KT-80999`](https://youtrack.jetbrains.com/issue/KT-80999) Reuse existing `IrKotlinLibraryLayout` in `KotlinLibrary` for reading pre-processed functions - [`KT-80290`](https://youtrack.jetbrains.com/issue/KT-80290) Remove `if` and TODO in `countInAsInlinedLambdaArgumentWithPermittedNonLocalReturns` - [`KT-80298`](https://youtrack.jetbrains.com/issue/KT-80298) K/N: one-stage compilation is broken - [`KT-79958`](https://youtrack.jetbrains.com/issue/KT-79958) KLIB tool fails to render IR if there is IrErrorType in a lirbrary - [`KT-75241`](https://youtrack.jetbrains.com/issue/KT-75241) Move ExperimentalLibraryAbiReader to a publishable artifact - [`KT-76260`](https://youtrack.jetbrains.com/issue/KT-76260) Make `IrRichCallableReferencesInKlibs` lang feature stable in LV=2.3 - [`KT-61552`](https://youtrack.jetbrains.com/issue/KT-61552) \[PL] IndexOutOfBoundsException in SAM conversion with substituted function - [`KT-74417`](https://youtrack.jetbrains.com/issue/KT-74417) Deduce the metadata version based on LV in KLIB-based backends - [`KT-75980`](https://youtrack.jetbrains.com/issue/KT-75980) \[Klib] Reduce serialized size of IrFileEntries for sparse usage of another source files - [`KT-73826`](https://youtrack.jetbrains.com/issue/KT-73826) Deduplicate `IrFileEntry` that is serialized inside `IrInlinedFunctionBlock` ##### Language Design - [`KT-76926`](https://youtrack.jetbrains.com/issue/KT-76926) Allow return in expression bodies if return type is specified explicitly - [`KT-78866`](https://youtrack.jetbrains.com/issue/KT-78866) Show an error for implicit receiver shadowed by context parameter - [`KT-81561`](https://youtrack.jetbrains.com/issue/KT-81561) Update nested type aliases KEEP to reflect local type aliases support - [`KT-81015`](https://youtrack.jetbrains.com/issue/KT-81015) Stabilize nested type aliases - [`KT-32619`](https://youtrack.jetbrains.com/issue/KT-32619) JS: return Promise when `continuation` is not provided - [`KT-78976`](https://youtrack.jetbrains.com/issue/KT-78976) Decide if K2 should support local functions inside of local inline functions - [`KT-79308`](https://youtrack.jetbrains.com/issue/KT-79308) Ability to actualize empty interfaces as Any - [`KT-48872`](https://youtrack.jetbrains.com/issue/KT-48872) Provide modern and performant replacement for Enum.values() - [`KT-28850`](https://youtrack.jetbrains.com/issue/KT-28850) Prohibit protected visibility in final expected classes ##### Libraries ##### New Features - [`KT-81092`](https://youtrack.jetbrains.com/issue/KT-81092) Uuid: support generation of version 7 uuids with a given timestamp - [`KT-78463`](https://youtrack.jetbrains.com/issue/KT-78463) Annotate wasm and JS targets of kotlin-stdlib with `@IgnorableReturnValue` when appropriate - [`KT-74444`](https://youtrack.jetbrains.com/issue/KT-74444) EnumEntries type should implement RandomAccess - [`KT-78462`](https://youtrack.jetbrains.com/issue/KT-78462) Annotate kotlin-stdlib-jvm with `@IgnorableReturnValue` where appropriate ##### Performance Improvements - [`KT-72111`](https://youtrack.jetbrains.com/issue/KT-72111) Change Duration.parseOrNull logic to not throw exceptions internally ##### Fixes - [`KT-82901`](https://youtrack.jetbrains.com/issue/KT-82901) `Long.MIN_VALUE.milliseconds` produces invalid denormalized Duration - [`KT-81995`](https://youtrack.jetbrains.com/issue/KT-81995) K/N: CMP: Undefined symbol \_kfun:kotlin.time.Duration.kotlin.time.Duration - [`KT-56822`](https://youtrack.jetbrains.com/issue/KT-56822) Deprecate Number.toChar() with error deprecation level - [`KT-81078`](https://youtrack.jetbrains.com/issue/KT-81078) Increase kotlin.io.createTempDir and createTempFile deprecation level to ERROR - [`KT-74493`](https://youtrack.jetbrains.com/issue/KT-74493) Deprecate String.subSequence(start, end) with error and drop it in the future - [`KT-79192`](https://youtrack.jetbrains.com/issue/KT-79192) Increase InputStream.readBytes(Int) deprecation level to HIDDEN - [`KT-80778`](https://youtrack.jetbrains.com/issue/KT-80778) Stabilize kotlin.time.Clock and kotlin.time.Instant - [`KT-81043`](https://youtrack.jetbrains.com/issue/KT-81043) String.toBigDecimalOrNull rejects strings accepted by String.toBigDecimal - [`KT-81477`](https://youtrack.jetbrains.com/issue/KT-81477) Uuid.Companion.generateV\* are missing SinceKotlin annotation - [`KT-81478`](https://youtrack.jetbrains.com/issue/KT-81478) FileTreeWalkTest.withDirectoryFilter fails on Windows - [`KT-74411`](https://youtrack.jetbrains.com/issue/KT-74411) Introduce Uuid.generateV4() and generateV7() - [`KT-80530`](https://youtrack.jetbrains.com/issue/KT-80530) Annotate Kotlin/Native stdlib with must-use value/`@IgnorableReturnValue` when appropriate - [`KT-79791`](https://youtrack.jetbrains.com/issue/KT-79791) Duration.parse incorrectly handles negative decimal seconds in ISO-8601 format - [`KT-80619`](https://youtrack.jetbrains.com/issue/KT-80619) \[KLIBs] Enable intra-module inliner in stdlib & kotlin-test - [`KT-76773`](https://youtrack.jetbrains.com/issue/KT-76773) stdlib: contextOf's type argument can be inferred via contextOf's context argument - [`KT-71822`](https://youtrack.jetbrains.com/issue/KT-71822) Intersection with (subtraction from) an identity set may produce incorrect results - [`KT-80431`](https://youtrack.jetbrains.com/issue/KT-80431) Remove suppression of "ACTUAL\_ANNOTATIONS\_NOT\_MATCH\_EXPECT" from stdlib - [`KT-80605`](https://youtrack.jetbrains.com/issue/KT-80605) Rename MustUseReturnValue -> MustUseReturnValues - [`KT-69947`](https://youtrack.jetbrains.com/issue/KT-69947) KLIB stdlib: All intrinsics that can be used in KLIBs with inlined IR must be included in stdlib ABI dump - [`KT-59044`](https://youtrack.jetbrains.com/issue/KT-59044) Improve various aspects of TimeSource documentation - [`KT-80544`](https://youtrack.jetbrains.com/issue/KT-80544) Mark controversial path extensions (like .deleteRecursively()) as ignorable - [`KT-80603`](https://youtrack.jetbrains.com/issue/KT-80603) K/N and K/Wasm: \p{N} category is not supported - [`KT-80661`](https://youtrack.jetbrains.com/issue/KT-80661) ArrayDeque.lastIndexOf may return -1 for an element present in the deque - [`KT-80390`](https://youtrack.jetbrains.com/issue/KT-80390) ArrayDeque.indexOf(null) wrongly returns 0 after removals - [`KT-79094`](https://youtrack.jetbrains.com/issue/KT-79094) Change signature of assertFailsWith or make lambda excluded otherwise - [`KT-72028`](https://youtrack.jetbrains.com/issue/KT-72028) Incorrect parameters order in IndexedValue documentation - [`KT-80130`](https://youtrack.jetbrains.com/issue/KT-80130) \[stdlib] Commonize AssociatedObjects in commonNonJvmMain - [`KT-80107`](https://youtrack.jetbrains.com/issue/KT-80107) \[stdlib] Move CancellationException to commonNonJvmMain - [`KT-80179`](https://youtrack.jetbrains.com/issue/KT-80179) Investigate why StringBuilder.length is not enhanced automatically - [`KT-80046`](https://youtrack.jetbrains.com/issue/KT-80046) Increase test coverage of Duration.parse\[IsoString]\[OrNull] methods - [`KT-76459`](https://youtrack.jetbrains.com/issue/KT-76459) Remove comments about sorting stability in unsigned-type arrays - [`KT-79489`](https://youtrack.jetbrains.com/issue/KT-79489) Generate Stdlib API reference for webMain source set - [`KT-78243`](https://youtrack.jetbrains.com/issue/KT-78243) Drop JS- and Wasm-specific IrLinkageError classes - [`KT-79108`](https://youtrack.jetbrains.com/issue/KT-79108) Remove the default argument for `linkageError` from kotlin.js.getPropertyCallableRef - [`KT-79130`](https://youtrack.jetbrains.com/issue/KT-79130) K/JS: Remove bodies from intrinsified Long methods - [`KT-79239`](https://youtrack.jetbrains.com/issue/KT-79239) K/Wasm: elementAt extension function of Array/PrimitiveArray/UnsignedArray does not throw IndexOutOfBoundException on incorrect index - [`KT-79256`](https://youtrack.jetbrains.com/issue/KT-79256) K/Wasm: MatchResult.groups raises a trap on invalid group index - [`KT-57317`](https://youtrack.jetbrains.com/issue/KT-57317) Repack EnumEntries from stdlib into the compiler ##### Native - [`KT-80620`](https://youtrack.jetbrains.com/issue/KT-80620) Bump minimal iOS and tvOS supported versions to 14.0 - [`KT-80624`](https://youtrack.jetbrains.com/issue/KT-80624) Bump minimal watchOS supported versions to 7.0 - [`KT-79384`](https://youtrack.jetbrains.com/issue/KT-79384) K/N: Application Not Responding: Thread Deadlock - [`KT-80536`](https://youtrack.jetbrains.com/issue/KT-80536) Native: `DependencyDownloader` seems to have no timeout ##### Native. Build Infrastructure - [`KT-80147`](https://youtrack.jetbrains.com/issue/KT-80147) Set proper LV and AV for `kotlin-native/performance/buildSrc` - [`KT-79474`](https://youtrack.jetbrains.com/issue/KT-79474) Kotlin/Native: fix breakpad build - [`KT-79215`](https://youtrack.jetbrains.com/issue/KT-79215) Kotlin/Native: fix distInvalidateStaleCaches on windows ##### Native. C and ObjC Import - [`KT-79752`](https://youtrack.jetbrains.com/issue/KT-79752) Native: make cinterop generate CCall.Direct annotations - [`KT-79753`](https://youtrack.jetbrains.com/issue/KT-79753) Native: support CCall.Direct calls in the compiler - [`KT-81312`](https://youtrack.jetbrains.com/issue/KT-81312) Native: when `-Xccall-mode direct` is used, mark unsupported declarations with unresolvable symbol name instead of `@Deprecated`(ERROR) - [`KT-79571`](https://youtrack.jetbrains.com/issue/KT-79571) Xcode 26 beta 4: CInteropKT39120TestGenerated.testForwardEnum failed - [`KT-80838`](https://youtrack.jetbrains.com/issue/KT-80838) Cinterop fails with an error when Compilation works fine - [`KT-49034`](https://youtrack.jetbrains.com/issue/KT-49034) Kotlin/Native: `cnames.structs.Foo` resolves into wrong declaration ##### Native. ObjC Export - [`KT-81906`](https://youtrack.jetbrains.com/issue/KT-81906) Normalize `CFBundleIdentifier` when producing Apple framework - [`KT-78810`](https://youtrack.jetbrains.com/issue/KT-78810) \[ObjCExport] Enable explicit ObjC block parameter names by default - [`KT-80271`](https://youtrack.jetbrains.com/issue/KT-80271) ObjC/Swift Export: Remove Native platform `Cloneable` checks - [`KT-78604`](https://youtrack.jetbrains.com/issue/KT-78604) Consider not inheriting `KlibScope` from `KaScope` - [`KT-79767`](https://youtrack.jetbrains.com/issue/KT-79767) ObjCExport: private companion must not be exposed - [`KT-79724`](https://youtrack.jetbrains.com/issue/KT-79724) ObjCExport: extensions order - [`KT-79548`](https://youtrack.jetbrains.com/issue/KT-79548) ObjCExport: mangling difference between K1 and K2 when translating KotlinDurationCompanion - [`KT-79475`](https://youtrack.jetbrains.com/issue/KT-79475) ObjCExport: invalid property getter translation - [`KT-79346`](https://youtrack.jetbrains.com/issue/KT-79346) ObjCExport: Any method overrides - [`KT-78871`](https://youtrack.jetbrains.com/issue/KT-78871) ObjCExport: translation of keyword `release` with parameter generates invalid header ##### Native. Runtime. Memory - [`KT-75918`](https://youtrack.jetbrains.com/issue/KT-75918) Native: Deprecate -Xallocator=std - [`KT-80678`](https://youtrack.jetbrains.com/issue/KT-80678) Native: pagedAllocator=false sweep is slow - [`KT-75916`](https://youtrack.jetbrains.com/issue/KT-75916) Native: Enable sanitizer support with pagedAllocator=false ##### Native. Swift Export ##### Fixes - [`KT-81355`](https://youtrack.jetbrains.com/issue/KT-81355) Swift Export: Introduce a flag to turn off coroutines export - [`KT-80969`](https://youtrack.jetbrains.com/issue/KT-80969) Swift Export: Call `suspend` function as `async` on swift side - [`KT-80111`](https://youtrack.jetbrains.com/issue/KT-80111) Swift Export Build Fails Due to Errors in KotlinStdlib.swift - [`KT-80884`](https://youtrack.jetbrains.com/issue/KT-80884) Swift Export: support async in SIR - [`KT-80185`](https://youtrack.jetbrains.com/issue/KT-80185) Swift Export: IllegalArgumentException – Collection contains more than one matching element - [`KT-79889`](https://youtrack.jetbrains.com/issue/KT-79889) K/N: swift-export fails under several different conditions - [`KT-79518`](https://youtrack.jetbrains.com/issue/KT-79518) Swift export: represent kotlin.Any as swift.any - [`KT-78603`](https://youtrack.jetbrains.com/issue/KT-78603) Do not inherit SirAndKaSession from KaSession - [`KT-79227`](https://youtrack.jetbrains.com/issue/KT-79227) Swift Export: Fix First Release Issues - [`KT-79521`](https://youtrack.jetbrains.com/issue/KT-79521) '\_CoroutineScope' is inaccessible due to 'internal' protection level - [`KT-79181`](https://youtrack.jetbrains.com/issue/KT-79181) Swift Export Fails When Using T: Comparable<T> Generic Constraint in Kotlin Classes ##### Tools. Ant - [`KT-75875`](https://youtrack.jetbrains.com/issue/KT-75875) Remove Ant support ##### Tools. BCV - [`KT-80313`](https://youtrack.jetbrains.com/issue/KT-80313) Add ability to generate dump from jar files \[ABI Tools] ##### Tools. Build Tools API ##### New Features - [`KT-78194`](https://youtrack.jetbrains.com/issue/KT-78194) BTA: port the JVM prototype to the new design - [`KT-79409`](https://youtrack.jetbrains.com/issue/KT-79409) BTA: Support removed compiler arguments properly - [`KT-78193`](https://youtrack.jetbrains.com/issue/KT-78193) BTA: Implement core infrastructure according to the new design - [`KT-78196`](https://youtrack.jetbrains.com/issue/KT-78196) BTA: implement API adapter for the prototype implementation - [`KT-77999`](https://youtrack.jetbrains.com/issue/KT-77999) BTA: Generate BTA options from compiler arguments descriptions ##### Fixes - [`KT-75357`](https://youtrack.jetbrains.com/issue/KT-75357) CompilationService.loadImplementation(loader) Expects a `ClassLoader`, but Fails if its not a `URLClassLoader` - [`KT-73090`](https://youtrack.jetbrains.com/issue/KT-73090) Gradle 8.11 kotlin compilation fails when run with -Pkotlin.compiler.runViaBuildToolsApi=true - [`KT-81321`](https://youtrack.jetbrains.com/issue/KT-81321) Deprecate old BTA prototype API - [`KT-81602`](https://youtrack.jetbrains.com/issue/KT-81602) BTA: rename KotlinToolchains.jvm `@JvmName` for a more Java-friendly API - [`KT-75356`](https://youtrack.jetbrains.com/issue/KT-75356) Failing to pass a `-d` argument causes Build Tools API to NPE - [`KT-81130`](https://youtrack.jetbrains.com/issue/KT-81130) BTA: using KotlinVersion from stdlib in the API breaks when using isolated classloader - [`KT-78195`](https://youtrack.jetbrains.com/issue/KT-78195) BTA: migrate the test infrastructure from the prototype to the new design ##### Tools. CLI - [`KT-81077`](https://youtrack.jetbrains.com/issue/KT-81077) Add JVM target bytecode version 25 - [`KT-79867`](https://youtrack.jetbrains.com/issue/KT-79867) CompilerConfiguration.configureSourceRoots puts obfuscated file paths instead of ones passed on `classpath` to CLIConfigurationKeys.CONTENT\_ROOTS - [`KT-80348`](https://youtrack.jetbrains.com/issue/KT-80348) Expose 'XXLanguage' compiler argument as a normal argument - [`KT-80428`](https://youtrack.jetbrains.com/issue/KT-80428) KMP Separate Compilation: Handle friend dependencies - [`KT-74590`](https://youtrack.jetbrains.com/issue/KT-74590) Deprecate -Xjvm-default in favor of -jvm-default - [`KT-80349`](https://youtrack.jetbrains.com/issue/KT-80349) KMP Separate Compilation is enabled on non-KMP compilations - [`KT-79982`](https://youtrack.jetbrains.com/issue/KT-79982) Fix description of -Xjspecify-annotations - [`KT-79403`](https://youtrack.jetbrains.com/issue/KT-79403) Improve generator for deprecated CLI arguments - [`KT-75968`](https://youtrack.jetbrains.com/issue/KT-75968) Set proper lifecycle for all existing compiler arguments - [`KT-79293`](https://youtrack.jetbrains.com/issue/KT-79293) Create Language Features and compiler argument with parameter for new destructuring features ##### Tools. Commonizer - [`KT-49735`](https://youtrack.jetbrains.com/issue/KT-49735) \[Commonizer] :commonizeNativeDistribution fails for projects with two or more same native targets - [`KT-47523`](https://youtrack.jetbrains.com/issue/KT-47523) MPP: Unable to resolve c-interop dependency if platform is included in an intermediate source set with the only target - [`KT-48118`](https://youtrack.jetbrains.com/issue/KT-48118) Commonized c-interop lib is not attached to common main source set - [`KT-46248`](https://youtrack.jetbrains.com/issue/KT-46248) MPP: Compile KotlinMetadata fails with Unresolved reference if only one native platform from shared source set is available ##### Tools. Compiler Plugin API - [`KT-82563`](https://youtrack.jetbrains.com/issue/KT-82563) Improve compiler error messages to identify incompatible plugins causing compilation failures - [`KT-55300`](https://youtrack.jetbrains.com/issue/KT-55300) Provide a mechanism to describe ordering and dependencies for compiler plugins - [`KT-82099`](https://youtrack.jetbrains.com/issue/KT-82099) Compiler plugin ordering has no effect - [`KT-74867`](https://youtrack.jetbrains.com/issue/KT-74867) LLFirIdePredicateBasedProvider matches local classes when it shouldn't - [`KT-52665`](https://youtrack.jetbrains.com/issue/KT-52665) Deprecate `ComponentRegistrar` - [`KT-75865`](https://youtrack.jetbrains.com/issue/KT-75865) Provide an API for setting the file name for the file with top-level declarations generated by a plugin ##### Tools. Compiler Plugins ##### New Features - [`KT-81091`](https://youtrack.jetbrains.com/issue/KT-81091) \[DataFrame] Receivers from FirExpressionResolutionExtension are not resolved in CodeFragment ##### Fixes - [`KT-64339`](https://youtrack.jetbrains.com/issue/KT-64339) Symbol Light Classes: No Arg compiler plugin generates synthethic constructor which is not seen from light classes - [`KT-80429`](https://youtrack.jetbrains.com/issue/KT-80429) Power Assert with "Run test using: IntelliJ": NoClassDefFoundError (org.jetbrains.kotlin.kotlinx.collections.immutable.ExtensionsKt) during compilation - [`KT-79319`](https://youtrack.jetbrains.com/issue/KT-79319) Lombok: NullPointerException on `mvn compile` when importing Java constants - [`KT-81348`](https://youtrack.jetbrains.com/issue/KT-81348) Incorrect bytecode mentioning error class/package is generated by kotlinx-serialization when private serializer in another module is not accessible - [`KT-80944`](https://youtrack.jetbrains.com/issue/KT-80944) FirUserTypeRefImpl cannot be cast to class FirResolvedTypeRef in maven project - [`KT-80815`](https://youtrack.jetbrains.com/issue/KT-80815) NoArg compiler plugin: Promote NO\_NOARG\_CONSTRUCTOR\_IN\_SUPERCLASS diagnostic from warning to error - [`KT-80822`](https://youtrack.jetbrains.com/issue/KT-80822) False positive NO\_NOARG\_CONSTRUCTOR\_IN\_SUPERCLASS reported for a class with explicit noargs constructor already present - [`KT-53122`](https://youtrack.jetbrains.com/issue/KT-53122) Constructors generated with NoArg have no `@Metadata` and are invisible for the frontend - [`KT-74687`](https://youtrack.jetbrains.com/issue/KT-74687) Kotlin Lombok: False positive when calling builder on Java record - [`KT-80419`](https://youtrack.jetbrains.com/issue/KT-80419) Remove bundled jetbrains annotations from kotlin-dataframe-compiler-plugin - [`KT-79245`](https://youtrack.jetbrains.com/issue/KT-79245) \[AtomicFU] Drop K1/JS- and K1/Native-specific testrunners - [`KT-79197`](https://youtrack.jetbrains.com/issue/KT-79197) DataFrame: Cannot find local variable 'this`@df`' with type Scope0 - [`KT-73865`](https://youtrack.jetbrains.com/issue/KT-73865) Incorrect type is generated for irPropertyReference during K/N transformation ##### Tools. Compiler plugins. Serialization - [`KT-70345`](https://youtrack.jetbrains.com/issue/KT-70345) Promote COMPANION\_OBJECT\_IS\_SERIALIZABLE\_INSIDE\_SERIALIZABLE\_CLASS diagnostic to error - [`KT-79695`](https://youtrack.jetbrains.com/issue/KT-79695) Serialization does not exclude field-less properties in 2.2.20-Beta2 - [`KT-79246`](https://youtrack.jetbrains.com/issue/KT-79246) \[Serialization] Drop K1-specific testrunners ##### Tools. Gradle ##### New Features - [`KT-78199`](https://youtrack.jetbrains.com/issue/KT-78199) Gradle: Migrate JVM compilation in KGP to the new BTA - [`KT-45161`](https://youtrack.jetbrains.com/issue/KT-45161) Gradle: Support registering generated sources with the Kotlin model - [`KT-71602`](https://youtrack.jetbrains.com/issue/KT-71602) Introduce KotlinTopLevelExtension ##### Fixes - [`KT-67290`](https://youtrack.jetbrains.com/issue/KT-67290) Deprecate usage of HasKotlinDependencies inside KotlinCompilation - [`KT-80950`](https://youtrack.jetbrains.com/issue/KT-80950) KGP breaks configuration cache when signing plugin with GnuPG is applied - [`KT-64211`](https://youtrack.jetbrains.com/issue/KT-64211) Provide support for the kotlin.internal.compiler.arguments.log.level property while running via build tools api - [`KT-81719`](https://youtrack.jetbrains.com/issue/KT-81719) Do not register swift export related configurations when it's not required - [`KT-78741`](https://youtrack.jetbrains.com/issue/KT-78741) Add FUS analytics for klib cross-compilation - [`KT-75449`](https://youtrack.jetbrains.com/issue/KT-75449) Update deprecation of `KotlinJsTestFramework#createTestExecutionSpec` - [`KT-64273`](https://youtrack.jetbrains.com/issue/KT-64273) Gradle: remove symbols deprecated after KT-54312 - [`KT-74915`](https://youtrack.jetbrains.com/issue/KT-74915) Make ExtrasProperty.kt internal - [`KT-64992`](https://youtrack.jetbrains.com/issue/KT-64992) Remove KotlinCompilation.source - [`KT-82068`](https://youtrack.jetbrains.com/issue/KT-82068) Workaround iOS Simulator start failure in IT - [`KT-79482`](https://youtrack.jetbrains.com/issue/KT-79482) Report webMain / webTest usage in FUS metrics - [`KT-81199`](https://youtrack.jetbrains.com/issue/KT-81199) Deprecate "org.jetbrains.kotlin.android" plugin - [`KT-82244`](https://youtrack.jetbrains.com/issue/KT-82244) Conflicting warnings when using AGP 9.0.0-alpha with built-in Kotlin disabled - [`KT-81161`](https://youtrack.jetbrains.com/issue/KT-81161) Gradle plugin api reference: compiler arguments types are not available - [`KT-70251`](https://youtrack.jetbrains.com/issue/KT-70251) Gradle: hide compiler symbols in KGP - [`KT-81837`](https://youtrack.jetbrains.com/issue/KT-81837) Run integration tests against AGP 8.13 - [`KT-77457`](https://youtrack.jetbrains.com/issue/KT-77457) Compile against Gradle API 9.0 - [`KT-79238`](https://youtrack.jetbrains.com/issue/KT-79238) Bump minimal supported AGP version to 8.2.2 - [`KT-75869`](https://youtrack.jetbrains.com/issue/KT-75869) KGP JS - Update deprecated constructors - [`KT-76720`](https://youtrack.jetbrains.com/issue/KT-76720) Raise deprecation level to error for Kotlin\*Options properties - [`KT-79047`](https://youtrack.jetbrains.com/issue/KT-79047) Gradle compileKotlin fails with configuration cache - [`KT-81415`](https://youtrack.jetbrains.com/issue/KT-81415) BTA: Duplicate daemons when compiling JVM + JS in KGP - [`KT-80763`](https://youtrack.jetbrains.com/issue/KT-80763) Add redirect link to error message when 'org.jetbrains.kotlin.android' plugin is used with built-in Kotlin - [`KT-81038`](https://youtrack.jetbrains.com/issue/KT-81038) Gradle: remove support for properties disabling precise task outputs backup - [`KT-80808`](https://youtrack.jetbrains.com/issue/KT-80808) Warning from kotlin-dsl with kotlin("jvm") on Gradle < 9.0 doesn’t suggest updating Gradle - [`KT-80875`](https://youtrack.jetbrains.com/issue/KT-80875) Gradle: runToolInSeparateProcess may fail on Windows with too long command line - [`KT-79851`](https://youtrack.jetbrains.com/issue/KT-79851) Emit an actionable warning/error on unsupported AV/LV configured by `kotlin-dsl` - [`KT-77458`](https://youtrack.jetbrains.com/issue/KT-77458) Run Gradle integration tests against Gradle 9.0 - [`KT-80172`](https://youtrack.jetbrains.com/issue/KT-80172) Error message changes depending on the order of applying 'org.jetbrains.kotlin.android' and 'AGP' 9.0+ with built-in Kotlin plugin - [`KT-76177`](https://youtrack.jetbrains.com/issue/KT-76177) Remove deprecated classpath snapshot task inputs - [`KT-79339`](https://youtrack.jetbrains.com/issue/KT-79339) Remove additionalMetadata from compiler options DSL - [`KT-73478`](https://youtrack.jetbrains.com/issue/KT-73478) Add module level description - [`KT-80083`](https://youtrack.jetbrains.com/issue/KT-80083) KGP IT: fix tests on Windows - [`KT-79034`](https://youtrack.jetbrains.com/issue/KT-79034) Automatically disable cross compilation if it's not supported on the host - [`KT-79408`](https://youtrack.jetbrains.com/issue/KT-79408) A lot of errors files are created when compile Kotlin - [`KT-78827`](https://youtrack.jetbrains.com/issue/KT-78827) Rewrite Gradle compiler options DSL generator ##### Tools. Gradle. BCV - [`KT-80687`](https://youtrack.jetbrains.com/issue/KT-80687) Add description to Gradle tasks \[ABI Validation] - [`KT-80621`](https://youtrack.jetbrains.com/issue/KT-80621) Move Gradle tasks into suitable groups \[ABI Validation] - [`KT-78625`](https://youtrack.jetbrains.com/issue/KT-78625) Kotlin's built-in BCV generates empty .api files ##### Tools. Gradle. Compiler plugins - [`KT-81827`](https://youtrack.jetbrains.com/issue/KT-81827) Add a switch for mapping file tasks in Compose Gradle plugin ##### Tools. Gradle. JS ##### Fixes - [`KT-79921`](https://youtrack.jetbrains.com/issue/KT-79921) Web Tooling Gradle API does not respect webpack reconfiguration - [`KT-81009`](https://youtrack.jetbrains.com/issue/KT-81009) K/JS, Wasm: Promote deprecation of NPM and Yarn package manager internal functions - [`KT-76019`](https://youtrack.jetbrains.com/issue/KT-76019) Wasm/JS: Promote phantom-js for Karma deprecation to ERROR - [`KT-81005`](https://youtrack.jetbrains.com/issue/KT-81005) K/JS, Wasm: Promote deprecation of ExperimentalWasmDsl to Error - [`KT-81010`](https://youtrack.jetbrains.com/issue/KT-81010) K/JS, Wasm: Promote deprecation of internal JS functions to Error - [`KT-81008`](https://youtrack.jetbrains.com/issue/KT-81008) K/JS, Wasm: Promote deprecation of ExperimentalDceDsl to Error - [`KT-81007`](https://youtrack.jetbrains.com/issue/KT-81007) K/JS, Wasm: Promote deprecation of public constructors of JS declarations to Error - [`KT-81006`](https://youtrack.jetbrains.com/issue/KT-81006) K/JS, Wasm: Promote wasm declarations in "js" package deprecation to Error - [`KT-81004`](https://youtrack.jetbrains.com/issue/KT-81004) K/JS, Wasm: promote deprecation NodeJsExec.create to Error - [`KT-75621`](https://youtrack.jetbrains.com/issue/KT-75621) KJS / Gradle: Disable npm in --offline mode - [`KT-79910`](https://youtrack.jetbrains.com/issue/KT-79910) Wasm, JS: Upgrade NPM versions - [`KT-76996`](https://youtrack.jetbrains.com/issue/KT-76996) Wasm: js tasks triggers wasm subtasks - [`KT-79237`](https://youtrack.jetbrains.com/issue/KT-79237) Upgrade NPM dependencies versions ##### Tools. Gradle. Multiplatform ##### New Features - [`KT-76446`](https://youtrack.jetbrains.com/issue/KT-76446) Add kotlin-level dependency block to work the same way as commonMain/commonTest dependencies blocks ##### Fixes - [`KT-61127`](https://youtrack.jetbrains.com/issue/KT-61127) Remove scoped resolvable and intransitive DependenciesMetadata configurations used in the pre-IdeMultiplatformImport IDE import - [`KT-81980`](https://youtrack.jetbrains.com/issue/KT-81980) KGP warning gives incorrect suggestion for AGP application compatibility - [`KT-81601`](https://youtrack.jetbrains.com/issue/KT-81601) With `android.builtInKotlin=false` AGP 9.0+, using `kotlin-multiplatform` plugin will fail with a`Class Cast Exception` - [`KT-81060`](https://youtrack.jetbrains.com/issue/KT-81060) KMP stores common compilation dependency resolution in Configuration cache leading to error when deserializing (Android only) - [`KT-80720`](https://youtrack.jetbrains.com/issue/KT-80720) Gradle import of multiplatform project fails: "Failed to invoke getAssociateWith on KotlinJvmCompilation\_Decorated" - [`KT-81200`](https://youtrack.jetbrains.com/issue/KT-81200) Deprecate 'androidTarget' - [`KT-74005`](https://youtrack.jetbrains.com/issue/KT-74005) Implement a prototype of Unified Klib support in Kotlin Gradle Plugin - [`KT-77367`](https://youtrack.jetbrains.com/issue/KT-77367) \[uklib] Project dependency to kotlin-jvm module leads to failure in transform during IDE import - [`KT-80785`](https://youtrack.jetbrains.com/issue/KT-80785) With `android.builtInKotlin=false` and `android.newDsl=true`, using `kotlin-android` plugin will fail with `ClassCastException` - [`KT-81434`](https://youtrack.jetbrains.com/issue/KT-81434) \[uklib] androidCompileClasspath resolves java compatibility variant instead of android for uklib library - [`KT-81469`](https://youtrack.jetbrains.com/issue/KT-81469) \[uklib] kmpPublicationStrategy affects resolution during import for androidTarget - [`KT-81249`](https://youtrack.jetbrains.com/issue/KT-81249) Kotlin 2.2.20 broke KMP implementation of Parcelize - [`KT-77066`](https://youtrack.jetbrains.com/issue/KT-77066) Promote kotlinArtifacts deprecation to an error - [`KT-74955`](https://youtrack.jetbrains.com/issue/KT-74955) Remove resources resolution strategy completely - [`KT-62614`](https://youtrack.jetbrains.com/issue/KT-62614) Remove legacy kotlin-gradle-plugin-model - [`KT-79559`](https://youtrack.jetbrains.com/issue/KT-79559) AGP complains about configurations resolved at configuration time due to KMP partially resolved dependencies diagnostic - [`KT-78993`](https://youtrack.jetbrains.com/issue/KT-78993) The value for property '\*' property 'dependencies' is final and cannot be changed any further - [`KT-76200`](https://youtrack.jetbrains.com/issue/KT-76200) TestModuleProperties.productionModuleName for JVM module isn't present with 2.1.20-RC - [`KT-55312`](https://youtrack.jetbrains.com/issue/KT-55312) Replace "ALL\_COMPILE\_DEPENDENCIES\_METADATA" configuration with set of metadata dependencies configurations associated per set - [`KT-52216`](https://youtrack.jetbrains.com/issue/KT-52216) HMPP / KTOR: False positive "TYPE\_MISMATCH" with Throwable descendant - [`KT-54312`](https://youtrack.jetbrains.com/issue/KT-54312) TCS: Replace CompilationDetails abstract class hierarchy by composable implementation - [`KT-55230`](https://youtrack.jetbrains.com/issue/KT-55230) Remove metadata dependencies transformation for runtimeOnly scope ##### Tools. Gradle. Native - [`KT-80675`](https://youtrack.jetbrains.com/issue/KT-80675) Commonized cinterops between "test" compilations produce an import failure - [`KT-77732`](https://youtrack.jetbrains.com/issue/KT-77732) `commonizeCInterop` failed with "Unresolved classifier: platform/posix/size\_t" - [`KT-81510`](https://youtrack.jetbrains.com/issue/KT-81510) `commonizeCInterop` exception with 'kotlinNativeBundleConfiguration' not found - [`KT-81134`](https://youtrack.jetbrains.com/issue/KT-81134) Native: Gradle configuration failure likely related to Klibs cross-compilation - [`KT-77486`](https://youtrack.jetbrains.com/issue/KT-77486) Remove bitcode DSL - [`KT-64107`](https://youtrack.jetbrains.com/issue/KT-64107) Kotlin Gradle plugin allows native binaries to have both `debuggable` and `optimized` flags set to `true` - [`KT-74910`](https://youtrack.jetbrains.com/issue/KT-74910) Bump `destinationDir` in CInteropProcess to hidden - [`KT-74911`](https://youtrack.jetbrains.com/issue/KT-74911) Promote CInteropProcess.konanVersion to hidden - [`KT-74864`](https://youtrack.jetbrains.com/issue/KT-74864) Enable exporting KDocs by default to ObjC - [`KT-72705`](https://youtrack.jetbrains.com/issue/KT-72705) K/N: compile task cache can not be used due to 'artifactVersion' input property ##### Tools. Gradle. Swift Export - [`KT-81465`](https://youtrack.jetbrains.com/issue/KT-81465) Swift Export package is build with wrong target - [`KT-81460`](https://youtrack.jetbrains.com/issue/KT-81460) \[KGP] Crash in SwiftExportRunner due to older stdlib - [`KT-79524`](https://youtrack.jetbrains.com/issue/KT-79524) NoSuchMethodError: 'java.lang.String org.gradle.api.artifacts.ProjectDependency.getPath() for swift export with dependency export fro gradle < 8.11 ##### Tools. Incremental Compile - [`KT-75864`](https://youtrack.jetbrains.com/issue/KT-75864) Implement a conservative mechanism of the IC with compiler plugins generated top-level declarations - [`KT-55982`](https://youtrack.jetbrains.com/issue/KT-55982) K2: Consider global lookups from plugins in incremental compilation - [`KT-79504`](https://youtrack.jetbrains.com/issue/KT-79504) Implement an API to provide IC lookups from backend plugins - [`KT-75657`](https://youtrack.jetbrains.com/issue/KT-75657) Fix difference in incremental compilation scenarios in BTA in-process vs daemon compilation mode - [`KT-79541`](https://youtrack.jetbrains.com/issue/KT-79541) Refactor tracking of files relation in IC - [`KT-74628`](https://youtrack.jetbrains.com/issue/KT-74628) Incremental compilation runner does not check compiler exit code before mapping sources to classes ##### Tools. JPS - [`KT-77347`](https://youtrack.jetbrains.com/issue/KT-77347) Support file-less compatible IC approach ##### Tools. Kapt - [`KT-79138`](https://youtrack.jetbrains.com/issue/KT-79138) K2: KAPT Java Stub Gen: `Unresolved reference` with `@kotlin`.Metadata in Java in 2.2.0 - [`KT-79133`](https://youtrack.jetbrains.com/issue/KT-79133) K2 kapt: class literal with typealias is not expanded - [`KT-79305`](https://youtrack.jetbrains.com/issue/KT-79305) K2 kapt: ISE "Cannot evaluate IR expression in annotation" on typealias with unresolved expansion - [`KT-79136`](https://youtrack.jetbrains.com/issue/KT-79136) K2 kapt: unresolved nested class references in annotation arguments are generated without outer class names - [`KT-71786`](https://youtrack.jetbrains.com/issue/KT-71786) K2Kapt: Stubs generation does not fail on files with declaration errors - [`KT-80843`](https://youtrack.jetbrains.com/issue/KT-80843) K2: KAPT: Crash on any data class with duplicate properties: "Sequence contains more than one matching element" - [`KT-73411`](https://youtrack.jetbrains.com/issue/KT-73411) Remove `kapt.use.k2` property and code which allows to use K2 with K1 kapt - [`KT-79641`](https://youtrack.jetbrains.com/issue/KT-79641) Kapt: too much information is printed in verbose mode ##### Tools. Maven - [`KT-82180`](https://youtrack.jetbrains.com/issue/KT-82180) kotlin-maven-plugin: IC succeeds after dependent source deletion - [`KT-78201`](https://youtrack.jetbrains.com/issue/KT-78201) Maven: migrate JVM compilation to the new BTA - [`KT-81414`](https://youtrack.jetbrains.com/issue/KT-81414) 2.2.20 regression: OOM (Compressed class space) when in-process - [`KT-81435`](https://youtrack.jetbrains.com/issue/KT-81435) Maven: Improve BTA classloader reusage - [`KT-81681`](https://youtrack.jetbrains.com/issue/KT-81681) Maven: "NoClassDefFoundError" on a second test run - [`KT-81218`](https://youtrack.jetbrains.com/issue/KT-81218) Kotlin Maven Plugin 2.2.20: Java classes not resolved with enabled incremental compilation without daemon ##### Tools. Performance benchmarks - [`KT-79709`](https://youtrack.jetbrains.com/issue/KT-79709) Add `-Xdetailed-perf` CLI flag to control verbosity of performance logs - [`KT-79226`](https://youtrack.jetbrains.com/issue/KT-79226) \[K/N] Add performance measurement for native backend lowerings ##### Tools. REPL - [`KT-80062`](https://youtrack.jetbrains.com/issue/KT-80062) ReplSnippetLowering sometimes produces IrConstructorCall with too many arguments ##### Tools. Scripts - [`KT-80071`](https://youtrack.jetbrains.com/issue/KT-80071) Kotlin script mode produces invalid IR: "value that is not available in the current scope" ##### Tools. Statistics (FUS) - [`KT-77407`](https://youtrack.jetbrains.com/issue/KT-77407) Add performance measurement for prefix lowerings - [`KT-79455`](https://youtrack.jetbrains.com/issue/KT-79455) \[FUS] Collect KSP plugin version - [`KT-79090`](https://youtrack.jetbrains.com/issue/KT-79090) Integrate dynamic stats into `MarkdownReportRenderer` ##### Tools. Wasm - [`KT-82365`](https://youtrack.jetbrains.com/issue/KT-82365) K/Wasm: NodeRun tasks in Wasi depend on kotlinWasmToolingSetup - [`KT-81313`](https://youtrack.jetbrains.com/issue/KT-81313) K/Wasm: update Node.js to 24.x - [`KT-81315`](https://youtrack.jetbrains.com/issue/KT-81315) K/Wasm: update Node.js to 25.x - [`KT-80582`](https://youtrack.jetbrains.com/issue/KT-80582) Multiple reloads when using webpack dev server after 2.2.20-Beta2 - [`KT-80896`](https://youtrack.jetbrains.com/issue/KT-80896) K/Wasm: debug tests only once - [`KT-78921`](https://youtrack.jetbrains.com/issue/KT-78921) K/Wasm: don't generate empty yarn.lock file ### [`v2.2.21`](https://github.com/JetBrains/kotlin/releases/tag/v2.2.21): Kotlin 2.2.21 #### Changelog ##### Backend. Wasm - [`KT-81372`](https://youtrack.jetbrains.com/issue/KT-81372) K/Wasm: JsException: Exception was thrown while running JavaScript code on Safari 18.2/18.3 - [`KT-80018`](https://youtrack.jetbrains.com/issue/KT-80018) K/Wasm: exceptions don't work properly in JavaScriptCore (vm inside Safari, WebKit) ##### Compiler - [`KT-81191`](https://youtrack.jetbrains.com/issue/KT-81191) K2: "null cannot be cast to non-null type ConeTypeParameterLookupTag" with invalid code - [`KT-80936`](https://youtrack.jetbrains.com/issue/KT-80936) NON\_PUBLIC\_CALL\_FROM\_PUBLIC\_INLINE : `@PublishedApi` doesn't work for fun interfaces ##### JavaScript - [`KT-79926`](https://youtrack.jetbrains.com/issue/KT-79926) Wrong export of interfaces with companions with ES Modules - [`KT-81424`](https://youtrack.jetbrains.com/issue/KT-81424) Kotlin/JS: Cannot Get / in a simple running application - [`KT-80873`](https://youtrack.jetbrains.com/issue/KT-80873) KJS: Stdlib requires ES2020-compatible JS engine due to BigInt type literal ##### Native - [`KT-79384`](https://youtrack.jetbrains.com/issue/KT-79384) K/N: Application Not Responding: Thread Deadlock ##### Tools. Gradle - [`KT-79047`](https://youtrack.jetbrains.com/issue/KT-79047) Gradle compileKotlin fails with configuration cache - [`KT-81148`](https://youtrack.jetbrains.com/issue/KT-81148) Publishing helpers in KGP are incompatible with Isolated Projects - [`KT-80950`](https://youtrack.jetbrains.com/issue/KT-80950) KGP breaks configuration cache when signing plugin with GnuPG is applied ##### Tools. Gradle. Multiplatform - [`KT-61127`](https://youtrack.jetbrains.com/issue/KT-61127) Remove scoped resolvable and intransitive DependenciesMetadata configurations used in the pre-IdeMultiplatformImport IDE import - [`KT-81249`](https://youtrack.jetbrains.com/issue/KT-81249) Kotlin 2.2.20 broke KMP implementation of Parcelize ##### Tools. Gradle. Native - [`KT-81510`](https://youtrack.jetbrains.com/issue/KT-81510) `commonizeCInterop` exception with 'kotlinNativeBundleConfiguration' not found - [`KT-81134`](https://youtrack.jetbrains.com/issue/KT-81134) Native: Gradle configuration failure likely related to Klibs cross-compilation - [`KT-77732`](https://youtrack.jetbrains.com/issue/KT-77732) `commonizeCInterop` failed with "Unresolved classifier: platform/posix/size\_t" - [`KT-80675`](https://youtrack.jetbrains.com/issue/KT-80675) Commonized cinterops between "test" compilations produce an import failure ##### Tools. Maven - [`KT-81218`](https://youtrack.jetbrains.com/issue/KT-81218) Kotlin Maven Plugin 2.2.20: Java classes not resolved with enabled incremental compilation without daemon ##### Tools. Wasm - [`KT-80582`](https://youtrack.jetbrains.com/issue/KT-80582) Multiple reloads when using webpack dev server after 2.2.20-Beta2 ### [`v2.2.20`](https://github.com/JetBrains/kotlin/releases/tag/v2.2.20): Kotlin 2.2.20 ##### Changelog ##### Analysis API - [`KT-78187`](https://youtrack.jetbrains.com/issue/KT-78187) Synthetic properties not to be shown as callables - [`KT-72525`](https://youtrack.jetbrains.com/issue/KT-72525) K2. red code and KIWA on new-lines in guarded when conditions (with parentheses) - [`KT-74246`](https://youtrack.jetbrains.com/issue/KT-74246) KaVisibilityChecker.isVisible is inefficient with multiple calls on the same use-site ##### Analysis API. Code Compilation - [`KT-78382`](https://youtrack.jetbrains.com/issue/KT-78382) K2 IR lowering error when interface extends interface - [`KT-73201`](https://youtrack.jetbrains.com/issue/KT-73201) K2 IDE: Error while evaluating expressions with local classes - [`KT-78164`](https://youtrack.jetbrains.com/issue/KT-78164) Evaluator: '`@JvmName`' annotations are not recognized in other modules - [`KT-76457`](https://youtrack.jetbrains.com/issue/KT-76457) K2 IDE / KMP Debugger: KISEWA “Cannot compile a common source without a JVM counterpart” on evaluating inline fun from common module inside jvm - [`KT-73084`](https://youtrack.jetbrains.com/issue/KT-73084) K2 evaluator cannot resolve local variables standing at the closing brace ##### Analysis API. FIR ##### Performance Improvements - [`KT-76490`](https://youtrack.jetbrains.com/issue/KT-76490) Do not load ast during the contracts phase if no contracts present - [`KT-78132`](https://youtrack.jetbrains.com/issue/KT-78132) Do not check FirElementBuilder#tryGetFirWithoutBodyResolve optimization for already resolved declarations ##### Fixes - [`KT-72227`](https://youtrack.jetbrains.com/issue/KT-72227) SOE from recursive value class - [`KT-68977`](https://youtrack.jetbrains.com/issue/KT-68977) K2 IDE: Reference to companion object through typealias in a function call does not work - [`KT-72357`](https://youtrack.jetbrains.com/issue/KT-72357) Implement partial body resolution - [`KT-76932`](https://youtrack.jetbrains.com/issue/KT-76932) Support context parameters on dangling modifier list - [`KT-72407`](https://youtrack.jetbrains.com/issue/KT-72407) FirImplementationByDelegationWithDifferentGenericSignatureChecker: FirLazyExpression should be calculated before accessing - [`KT-77602`](https://youtrack.jetbrains.com/issue/KT-77602) K2 / Analysis API: KAEWA “No fir element was found for KtParameter” on incorrect context()-call - [`KT-77629`](https://youtrack.jetbrains.com/issue/KT-77629) K2: NPE: "org.jetbrains.kotlin.fir.java.declarations.FirJavaTypeParameter.performFirstRoundOfBoundsResolution" - [`KT-76855`](https://youtrack.jetbrains.com/issue/KT-76855) Analysis API: `KaType.asPsiType` returns `null` for a local inner class in dependent analysis tests - [`KT-72718`](https://youtrack.jetbrains.com/issue/KT-72718) ImplicitReceiverValue.createSnapshot creates invalid FIR if receiver is smart-casted - [`KT-76811`](https://youtrack.jetbrains.com/issue/KT-76811) Analysis API: `resolveToFirSymbol` finds a `FirPropertySymbol` for a `KtScript` in dependent analysis - [`KT-73586`](https://youtrack.jetbrains.com/issue/KT-73586) \[Analysis API] Add `lazyResolveToPhase(STATUS)` before accessing modifiers of members - [`KT-71135`](https://youtrack.jetbrains.com/issue/KT-71135) AA: exception from sealed inheritors checker when `analyzeCopy` - [`KT-75534`](https://youtrack.jetbrains.com/issue/KT-75534) K2 AA: "Containing declaration should present for nested declaration class KtNamedFunction" with dangling annotation on top-level anonymous function - [`KT-75687`](https://youtrack.jetbrains.com/issue/KT-75687) K2: local variable doesn't get to the do-while scope - [`KT-56543`](https://youtrack.jetbrains.com/issue/KT-56543) LL FIR: rework lazy transformers so transformers modify only declarations they suppose to ##### Analysis API. Infrastructure - [`KT-76809`](https://youtrack.jetbrains.com/issue/KT-76809) Analysis API: Dependent analysis tests frequently work with the original element instead of the copied element ##### Analysis API. Light Classes - [`KT-78835`](https://youtrack.jetbrains.com/issue/KT-78835) Find usages of a light constructor from a class with an empty body finds usages of class as well - [`KT-78878`](https://youtrack.jetbrains.com/issue/KT-78878) K2. Method shown as unavailable in Java when `@JvmExposeBoxed` is applied (redundantly) at both class and method level in Kotlin - [`KT-78065`](https://youtrack.jetbrains.com/issue/KT-78065) Support "Expose boxed inline value classes" in Light Classes - [`KT-78076`](https://youtrack.jetbrains.com/issue/KT-78076) DLC: KotlinDeclarationInCompiledFileSearcher missed accessors if types are boxed - [`KT-77569`](https://youtrack.jetbrains.com/issue/KT-77569) SLC: annotation missing from generated no-args constructor - [`KT-75182`](https://youtrack.jetbrains.com/issue/KT-75182) K2 AA. False positive red code "Unresolved reference" to a Kotlin method in Java when Kotlin uses a value class with `@JvmOverloads` - [`KT-77564`](https://youtrack.jetbrains.com/issue/KT-77564) Constructor with JvmOverloads and value class shouldn't mark regular constructors private - [`KT-77505`](https://youtrack.jetbrains.com/issue/KT-77505) K2: find usages on java accessor methods do not detect kotlin property accessor usages - [`KT-76789`](https://youtrack.jetbrains.com/issue/KT-76789) Annotation resolve shouldn't search through non-class members - [`KT-76907`](https://youtrack.jetbrains.com/issue/KT-76907) Wrong equality between repeatable annotation and container ##### Analysis API. Providers and Caches - [`KT-77578`](https://youtrack.jetbrains.com/issue/KT-77578) Analysis API: Performance degradation of `KaBaseResolutionScope.contains` after introduction of library restriction scopes - [`KT-78640`](https://youtrack.jetbrains.com/issue/KT-78640) Analysis API: Remove "friend builtins provider" from `FirDeclarationForCompiledElementSearcher` - [`KT-74907`](https://youtrack.jetbrains.com/issue/KT-74907) Analysis API: Apply platform-based library module content restrictions consistently - [`KT-77605`](https://youtrack.jetbrains.com/issue/KT-77605) AA: Leaking KaDanglingFileModule through IdeKotlinPackageProvider - [`KT-62474`](https://youtrack.jetbrains.com/issue/KT-62474) Analysis API: Improve mergeability and performance of custom search scopes - [`KT-77022`](https://youtrack.jetbrains.com/issue/KT-77022) Get rid of ExpectBuiltinPostProcessor workaround - [`KT-77248`](https://youtrack.jetbrains.com/issue/KT-77248) Delegation of `JavaModuleResolver` is restricted to `CliJavaModuleResolver` - [`KT-76850`](https://youtrack.jetbrains.com/issue/KT-76850) LLFirLibrarySession cannot be cast to LLFirResolvableModuleSession - [`KT-76952`](https://youtrack.jetbrains.com/issue/KT-76952) Analysis API: `when` exhaustiveness analysis fails for sealed classes in dangling files - [`KT-72390`](https://youtrack.jetbrains.com/issue/KT-72390) Kotlin project full of red code ##### Analysis API. Standalone - [`KT-78638`](https://youtrack.jetbrains.com/issue/KT-78638) Analysis API Standalone: Stdlib builtins are not indexed in `STUBS` deserialized declaration origin mode ##### Analysis API. Stubs and Decompilation - [`KT-77496`](https://youtrack.jetbrains.com/issue/KT-77496) Support HAS\_MUST\_USE\_RETURN\_VALUE metadata flags in FirStubBasedMemberDeserializer - [`KT-77778`](https://youtrack.jetbrains.com/issue/KT-77778) Function receivers doesn't have annotations - [`KT-77777`](https://youtrack.jetbrains.com/issue/KT-77777) Receiver annotations shouldn't be present on types - [`KT-77538`](https://youtrack.jetbrains.com/issue/KT-77538) Support default property accessors with annotations - [`KT-77763`](https://youtrack.jetbrains.com/issue/KT-77763) Decompiled stubs miss inline modifier for property accessors - [`KT-77309`](https://youtrack.jetbrains.com/issue/KT-77309) Decompiled property from annotation constructor with default value should have a constant initializer - [`KT-77168`](https://youtrack.jetbrains.com/issue/KT-77168) Prefer DataInputOutputUtil for serialization/deserialization - [`KT-77117`](https://youtrack.jetbrains.com/issue/KT-77117) Flaky WRONG\_ANNOTATION\_TARGET diagnostic - [`KT-76791`](https://youtrack.jetbrains.com/issue/KT-76791) Function signature types are deserialized inconsistently - [`KT-76947`](https://youtrack.jetbrains.com/issue/KT-76947) Support functional types with context parameters ##### Analysis API. Surface ##### New Features - [`KT-73473`](https://youtrack.jetbrains.com/issue/KT-73473) Provide KaExpressionInformationProvider.isUsedAsResultOfLambda - [`KT-77278`](https://youtrack.jetbrains.com/issue/KT-77278) Implement psi-based `KaFirKotlinPropertyKtPropertyBasedSymbol#hasBackingField` - [`KT-70770`](https://youtrack.jetbrains.com/issue/KT-70770) KaLocalVariableSymbol: support `isLateInit` ##### Performance Improvements - [`KT-78526`](https://youtrack.jetbrains.com/issue/KT-78526) Get rid of redundant `checkValidity` from `withPsiValidityAssertion` ##### Fixes - [`KT-77674`](https://youtrack.jetbrains.com/issue/KT-77674) Analysis API: Redundant smart cast to the original type - [`KT-76577`](https://youtrack.jetbrains.com/issue/KT-76577) Guard KaFirStopWorldCacheCleaner from deadlocks via threads waiting - [`KT-78820`](https://youtrack.jetbrains.com/issue/KT-78820) K2: ISE "FIR element class FirErrorExpressionImpl is not supported in constant evaluation" through RedundantValueArgumentInspection - [`KT-75057`](https://youtrack.jetbrains.com/issue/KT-75057) Analysis API: Reference to object through typealias in invoke operator call leads to original type - [`KT-79042`](https://youtrack.jetbrains.com/issue/KT-79042) Do not restore KaTypePointer if target kind has changed - [`KT-72421`](https://youtrack.jetbrains.com/issue/KT-72421) AA: "KtReference.resolveToSymbols" returns empty list when ASSIGN\_OPERATOR\_AMBGUITY error is present - [`KT-63464`](https://youtrack.jetbrains.com/issue/KT-63464) AA: KtPsiTypeProvider#asPsiType doesn't substitute kotlin.Unit - [`KT-75913`](https://youtrack.jetbrains.com/issue/KT-75913) K2: SymbolLightLazyAnnotation evaluates arguments and replaces them with constants - [`KT-78628`](https://youtrack.jetbrains.com/issue/KT-78628) K2. Setting Receiver=true in Change Signature produces parameter of regular function type receiver instead of extension function type - [`KT-78278`](https://youtrack.jetbrains.com/issue/KT-78278) ISE: FIR element "class org.jetbrains.kotlin.fir.expressions.impl.FirErrorResolvedQualifierImpl" is not supported in constant evaluation at org.jetbrains.uast.kotlin.internal.FirKotlinUastConstantEvaluator.evaluate - [`KT-73184`](https://youtrack.jetbrains.com/issue/KT-73184) Analysis API: KaFunctionCall.argumentMapping is unexpectedly deparenthesised - [`KT-73327`](https://youtrack.jetbrains.com/issue/KT-73327) Cover all psi inputs with scope validity assertions - [`KT-78613`](https://youtrack.jetbrains.com/issue/KT-78613) PSI: add binary compatibility checks - [`KT-74013`](https://youtrack.jetbrains.com/issue/KT-74013) Analysis API: Cover the API surface with `@SubclassOptInRequired` annotations - [`KT-76614`](https://youtrack.jetbrains.com/issue/KT-76614) Move the parser and lexer to a separate module - [`KT-78552`](https://youtrack.jetbrains.com/issue/KT-78552) `KaFunctionValueParameter` is not marked as `KaLifetimeOwner` - [`KT-71152`](https://youtrack.jetbrains.com/issue/KT-71152) Add back SubclassOptInRequired to classes in KaModule.kt - [`KT-71876`](https://youtrack.jetbrains.com/issue/KT-71876) Support storing parameter names in `KaFunctionType` - [`KT-77738`](https://youtrack.jetbrains.com/issue/KT-77738) AA: inconsistent `KaType.allSupertypes` regarding multiple iterations - [`KT-75358`](https://youtrack.jetbrains.com/issue/KT-75358) K2 AA, KaFirVisibilityChecker: private member of anonymous object is not visible inside it - [`KT-73723`](https://youtrack.jetbrains.com/issue/KT-73723) K2 AA, KaFirVisibilityChecker: protected member of superclass is not visible from anonymous object - [`KT-78057`](https://youtrack.jetbrains.com/issue/KT-78057) \[Analysis API, K2] Context parameters are not resolved in KDoc - [`KT-73758`](https://youtrack.jetbrains.com/issue/KT-73758) K2 Mode: "KaEvaluator.evaluate" does not work for simple arithmetic expressions - [`KT-72301`](https://youtrack.jetbrains.com/issue/KT-72301) K2 AA. `PSI should present for declaration built by Kotlin code` on property access syntax of generic Java getter through Kotlin subclass - [`KT-77730`](https://youtrack.jetbrains.com/issue/KT-77730) K2: Unable to get a light PSI for a nested annotation used with fully-qualified name - [`KT-73216`](https://youtrack.jetbrains.com/issue/KT-73216) K2: unresolvable references in type parameters - [`KT-71794`](https://youtrack.jetbrains.com/issue/KT-71794) Analysis API: Types with errors have unresolved qualifiers in lambda parameters position - [`KT-65846`](https://youtrack.jetbrains.com/issue/KT-65846) Support parameter names in functional type rendering - [`KT-76738`](https://youtrack.jetbrains.com/issue/KT-76738) K2 AA: rendering constructor of sealed class inserts protected modifier - [`KT-77515`](https://youtrack.jetbrains.com/issue/KT-77515) `KaTypeProvider#receiverType` should be more tolerant to an error code - [`KT-77333`](https://youtrack.jetbrains.com/issue/KT-77333) K2 AA: KaFirTypeProvider.getType: InvalidFirElementTypeException: For TYPE\_REFERENCE with text `I`, unexpected element of type: FirSuperReceiverExpressionImpl found - [`KT-76044`](https://youtrack.jetbrains.com/issue/KT-76044) K2 AA: isFun is true for restored symbol of Java interface with several methods - [`KT-77264`](https://youtrack.jetbrains.com/issue/KT-77264) `KaTypeProvider#type` should be more tolerant to an error code - [`KT-77282`](https://youtrack.jetbrains.com/issue/KT-77282) KaPropertySymbol: support `isDelegatedProperty` for libraries - [`KT-77254`](https://youtrack.jetbrains.com/issue/KT-77254) K2 AA: expectedType doesn't provide anything for parameter default value - [`KT-74777`](https://youtrack.jetbrains.com/issue/KT-74777) KaVariableSymbol.hasBackingField returns incorrect result for libraries - [`KT-77280`](https://youtrack.jetbrains.com/issue/KT-77280) Rename `KaPropertyAccessorSymbol#isCustom` to `isNotDefault` - [`KT-77210`](https://youtrack.jetbrains.com/issue/KT-77210) Analysis API: `scopeContext` shows implicit receiver with a class instance in the class constructor - [`KT-77196`](https://youtrack.jetbrains.com/issue/KT-77196) Clarify differences between KaPropertyAccessorSymbol#{isDefault, hasBody} - [`KT-76580`](https://youtrack.jetbrains.com/issue/KT-76580) K2: No expected type for the second+ vararg argument - [`KT-76750`](https://youtrack.jetbrains.com/issue/KT-76750) K2. internal exception 'Unable to provide inlay hint' on typo in nested lambdas - [`KT-73290`](https://youtrack.jetbrains.com/issue/KT-73290) Analysis API: Improve the architecture of content scopes and resolution scopes - [`KT-73055`](https://youtrack.jetbrains.com/issue/KT-73055) Get rid of the deprecated Analysis API API - [`KT-70199`](https://youtrack.jetbrains.com/issue/KT-70199) K2: ConcurrentModificationException at FirCallCompleter$LambdaAnalyzerImpl.analyzeAndGetLambdaReturnArguments ##### Backend. Wasm ##### New Features - [`KT-65721`](https://youtrack.jetbrains.com/issue/KT-65721) K/Wasm: stop unconditionally exporting any main function from the root package ##### Performance Improvements - [`KT-70097`](https://youtrack.jetbrains.com/issue/KT-70097) Optimize shared primitive variables in Native and Wasm ##### Fixes - [`KT-80106`](https://youtrack.jetbrains.com/issue/KT-80106) devServer in Kotlin/Wasm overwrites defaults, causing missing static paths - [`KT-80018`](https://youtrack.jetbrains.com/issue/KT-80018) K/Wasm: exceptions don't work properly in JavaScriptCore (vm inside Safari, WebKit) - [`KT-66072`](https://youtrack.jetbrains.com/issue/KT-66072) K/Wasm: improve how exceptions work in JS interop - [`KT-77897`](https://youtrack.jetbrains.com/issue/KT-77897) WasmJs: ClassCastException when using star-projection with nullable transformation in generic extension function - [`KT-71533`](https://youtrack.jetbrains.com/issue/KT-71533) K/Wasm + K2: no error on KClass::qualifiedName usages - [`KT-73931`](https://youtrack.jetbrains.com/issue/KT-73931) WASM: "RuntimeError: illegal cast" with nullable generic - [`KT-65403`](https://youtrack.jetbrains.com/issue/KT-65403) \[WASM] RuntimeError is thrown instead of ClassCastException - [`KT-79317`](https://youtrack.jetbrains.com/issue/KT-79317) \[Wasm] Do not throw CCE for ExcludedFromCodegen declarations - [`KT-66085`](https://youtrack.jetbrains.com/issue/KT-66085) K/WASM: Runtime error is uncaught with `catch (e: Throwable)` - [`KT-78036`](https://youtrack.jetbrains.com/issue/KT-78036) K/Wasm: generate a message with "expected" and "actual" types in case of CCE - [`KT-78384`](https://youtrack.jetbrains.com/issue/KT-78384) K/Wasm: Incorrect debug info of local declarations in inline function from another file - [`KT-72220`](https://youtrack.jetbrains.com/issue/KT-72220) Wasm: Unclear exception in case of missed dependency - [`KT-71691`](https://youtrack.jetbrains.com/issue/KT-71691) No trace on Wasm/JS if an error occurred in initializing global variables in a file with the main function - [`KT-67554`](https://youtrack.jetbrains.com/issue/KT-67554) \[Wasm] Consider to have reference equals or/and equals for function references - [`KT-71521`](https://youtrack.jetbrains.com/issue/KT-71521) K/Wasm: incorrect results on equality checks for capturing property references - [`KT-71522`](https://youtrack.jetbrains.com/issue/KT-71522) K/Wasm: incorrect results on equality checks for function references - [`KT-69570`](https://youtrack.jetbrains.com/issue/KT-69570) K/Wasm: JsExport with default parameter value compiles to invalid Wasm - [`KT-71517`](https://youtrack.jetbrains.com/issue/KT-71517) K/Wasm: KClass::qualifiedName for local classes and objects returns non-null value - [`KT-68309`](https://youtrack.jetbrains.com/issue/KT-68309) WASM: Anonymous class simpleName returns "<no name provided>" instead of null - [`KT-77272`](https://youtrack.jetbrains.com/issue/KT-77272) K/Wasm: Remove kotlin.wasm.internal.ClosureBox\* classes from the standard library - [`KT-66106`](https://youtrack.jetbrains.com/issue/KT-66106) Wasm: lambda was not invoked in test lambda2.kt - [`KT-77855`](https://youtrack.jetbrains.com/issue/KT-77855) \[Wasm] Improve virtual function calls speed for lambdas - [`KT-77501`](https://youtrack.jetbrains.com/issue/KT-77501) Wasm: unsigned vararg compiles to invalid Wasm - [`KT-76775`](https://youtrack.jetbrains.com/issue/KT-76775) \[Wasm] Inconsistent FP mod operation - [`KT-77464`](https://youtrack.jetbrains.com/issue/KT-77464) Wasm: KType.toString() has simple names even with -Xwasm-kclass-fqn - [`KT-77465`](https://youtrack.jetbrains.com/issue/KT-77465) Wasm: KTypeParamter printed without variance information ##### Compiler ##### New Features - [`KT-71768`](https://youtrack.jetbrains.com/issue/KT-71768) Enable -Xjvm-default=all-compatibility by default to generate JVM default interface methods - [`KT-78374`](https://youtrack.jetbrains.com/issue/KT-78374) Make indy lambda function name generation more consistent - [`KT-45683`](https://youtrack.jetbrains.com/issue/KT-45683) Allow generics in contract type assertions - [`KT-27090`](https://youtrack.jetbrains.com/issue/KT-27090) Support contracts in getter and setter for top-level extension properties - [`KT-76766`](https://youtrack.jetbrains.com/issue/KT-76766) Warning is missing for wrong subclass checking - [`KT-71244`](https://youtrack.jetbrains.com/issue/KT-71244) Incorporate existing `@CheckReturnValue` annotation(s) into Kotlin's unused return value checker - [`KT-73256`](https://youtrack.jetbrains.com/issue/KT-73256) Implement `all` meta-target for annotations - [`KT-78792`](https://youtrack.jetbrains.com/issue/KT-78792) Report warning for redundant return in expression body - [`KT-32313`](https://youtrack.jetbrains.com/issue/KT-32313) Support contracts for operator functions - [`KT-70722`](https://youtrack.jetbrains.com/issue/KT-70722) Implement better Kotlin warnings for value classes and JEP 390 (Warnings for Value-Based Classes) - [`KT-65688`](https://youtrack.jetbrains.com/issue/KT-65688) Generate when-expressions over final classes via invokedynamic typeSwitch + tableswitch on JDK 21+ - [`KT-54344`](https://youtrack.jetbrains.com/issue/KT-54344) Trigger the unused expression warning for interpolated strings, even when the expression may have side effects - [`KT-74807`](https://youtrack.jetbrains.com/issue/KT-74807) Implement 'full' unused return value checker mode - [`KT-77653`](https://youtrack.jetbrains.com/issue/KT-77653) K/N: an optimization pass to remove redundant type checks - [`KT-64477`](https://youtrack.jetbrains.com/issue/KT-64477) Enhance KotlinLightParser to make it able to parse scripts - [`KT-74809`](https://youtrack.jetbrains.com/issue/KT-74809) Support unnamed local variables - [`KT-72941`](https://youtrack.jetbrains.com/issue/KT-72941) ANNOTATIONS\_ON\_BLOCK\_LEVEL\_EXPRESSION\_ON\_THE\_SAME\_LINE missing in K2 - [`KT-75061`](https://youtrack.jetbrains.com/issue/KT-75061) Support context-sensitive resolution in type position ##### Performance Improvements - [`KT-77993`](https://youtrack.jetbrains.com/issue/KT-77993) Optimize old PSI/LightTree Kotlin parser - [`KT-78672`](https://youtrack.jetbrains.com/issue/KT-78672) Consider having FirCallableSymbol.callableId null for local properties / parameters - [`KT-77839`](https://youtrack.jetbrains.com/issue/KT-77839) K2: consider not creating CallableId for value parameters / variables / fields - [`KT-74981`](https://youtrack.jetbrains.com/issue/KT-74981) Kotlin/Native: large binary size for iOS target in 2.1.0(LLVM16) - [`KT-77838`](https://youtrack.jetbrains.com/issue/KT-77838) K2: consider replacing LinkedHashMap with HashMap inside scopes and scope session - [`KT-76698`](https://youtrack.jetbrains.com/issue/KT-76698) Android Studio compose preview holds read lock 700ms for KaCompilerFacility API - [`KT-68677`](https://youtrack.jetbrains.com/issue/KT-68677) Kotlin compilation issue when using EnumMap and Pair ##### Fixes - [`KT-79979`](https://youtrack.jetbrains.com/issue/KT-79979) K2: ClassCastException when overriding extension property with delegation - [`KT-67146`](https://youtrack.jetbrains.com/issue/KT-67146) `UPPER_BOUND_VIOLATED` missing on implicit type arguments - [`KT-76477`](https://youtrack.jetbrains.com/issue/KT-76477) Kotlin/Native: fix compiler performance reporting in sources->klib and klibs->binary - [`KT-79866`](https://youtrack.jetbrains.com/issue/KT-79866) kotlinc 2.2.0 silently emits 'NonExistentClass' instead of reporting an error - [`KT-78666`](https://youtrack.jetbrains.com/issue/KT-78666) "Platform declaration clash" caused by indy lambda name generation which generates conflicting names - [`KT-80285`](https://youtrack.jetbrains.com/issue/KT-80285) IJ monorepo: broken compilation after 2.2.20-RC update - [`KT-79442`](https://youtrack.jetbrains.com/issue/KT-79442) "Multiple annotations of type kotlin.coroutines.jvm.internal.DebugMetadata": 2.2.0-Beta1 generates broken code with JVM default suspend methods in interfaces - [`KT-78589`](https://youtrack.jetbrains.com/issue/KT-78589) "Class does not have member field" caused by delegation from a Java to Kotlin class - [`KT-79816`](https://youtrack.jetbrains.com/issue/KT-79816) Java Interfaces implemented by delegation have non-null return checks - [`KT-78097`](https://youtrack.jetbrains.com/issue/KT-78097) False positive NO\_ELSE\_IN\_WHEN on sealed interface with negative is check - [`KT-77182`](https://youtrack.jetbrains.com/issue/KT-77182) A function in a file annotated with `@file`:MustUseReturnValue doesn't produce a warning when it is used from compiled code - [`KT-79085`](https://youtrack.jetbrains.com/issue/KT-79085) Adding `-Xreturn-value-checker=full` to kotlinc causes "error: conflicting overloads" - [`KT-75268`](https://youtrack.jetbrains.com/issue/KT-75268) K2: Implement the new compilation scheme for MPP (compiler part) - [`KT-78843`](https://youtrack.jetbrains.com/issue/KT-78843) FIR tree: comments within String concatenation aren't visited in 2.2.0 - [`KT-77401`](https://youtrack.jetbrains.com/issue/KT-77401) \[FIR] `ParameterNameTypeAttribute.name` doesn't support `@ParameterName` with compile-time constant property argument - [`KT-73611`](https://youtrack.jetbrains.com/issue/KT-73611) Remove -Xextended-compiler-checks in favor of a deprecation cycle - [`KT-79276`](https://youtrack.jetbrains.com/issue/KT-79276) Dexing fails with "Cannot read field X because <local0> is null" with 2.2.0 - [`KT-79781`](https://youtrack.jetbrains.com/issue/KT-79781) Missing MISSING\_DEPENDENCY\_CLASS when using type alias with inaccessible RHS - [`KT-78621`](https://youtrack.jetbrains.com/issue/KT-78621) false-positive type mismatch error on value of nullable type as value of platform type - [`KT-79547`](https://youtrack.jetbrains.com/issue/KT-79547) "UnsupportedOperationException: Not supported" with inlining and value classes - [`KT-52706`](https://youtrack.jetbrains.com/issue/KT-52706) Bad signature for generic value classes with substituted type parameter - [`KT-79519`](https://youtrack.jetbrains.com/issue/KT-79519) Nested type alias is unreachable from another module - [`KT-76839`](https://youtrack.jetbrains.com/issue/KT-76839) False-negative MISSING\_DEPENDENCY\_CLASS on parameter of data class constructor - [`KT-78352`](https://youtrack.jetbrains.com/issue/KT-78352) False-positive IDENTITY\_SENSITIVE\_OPERATIONS\_WITH\_VALUE\_TYPE when comparing with equality operator (==) - [`KT-78815`](https://youtrack.jetbrains.com/issue/KT-78815) `Symbol not found: __ZNSt3__117bad_function_callD1Ev` error on iOS 15.5 simulator in Xcode 16.3 after update to 2.2.0-Beta2 - [`KT-25341`](https://youtrack.jetbrains.com/issue/KT-25341) NOT\_YET\_SUPPORTED\_IN\_INLINE reported over anonymous object border - [`KT-77099`](https://youtrack.jetbrains.com/issue/KT-77099) 'all' annotation target is not a soft keyword - [`KT-76478`](https://youtrack.jetbrains.com/issue/KT-76478) FIR: Implement IDE-only checker for types exposed in inline function - [`KT-79355`](https://youtrack.jetbrains.com/issue/KT-79355) Failed to fix the problem of desugared `inc` with new reverse implies returns contract - [`KT-79277`](https://youtrack.jetbrains.com/issue/KT-79277) Implies returns contract doesn't affect the return type of the function if it is in the argument position - [`KT-79271`](https://youtrack.jetbrains.com/issue/KT-79271) Implies returns contract doesn't impact exhaustiveness - [`KT-79218`](https://youtrack.jetbrains.com/issue/KT-79218) SMARTCAST\_IMPOSSIBLE for top‑level extension‑property getter despite returnsNotNull contract - [`KT-79220`](https://youtrack.jetbrains.com/issue/KT-79220) returnsNotNull contract ignored on extension function with nullable receiver - [`KT-79354`](https://youtrack.jetbrains.com/issue/KT-79354) IllegalStateException: Debug metadata version mismatch. Expected: 1, got 2 with compiler 2.2.20-Beta1 and stdlib 2.2.0 - [`KT-78479`](https://youtrack.jetbrains.com/issue/KT-78479) IR lowering failed / Unexpected null argument for composable call - [`KT-77986`](https://youtrack.jetbrains.com/issue/KT-77986) K2: False negative: "Local classes are not yet supported in inline functions" - [`KT-79076`](https://youtrack.jetbrains.com/issue/KT-79076) 'IllegalStateException: Cannot serialize error type: ERROR CLASS: Uninferred type' with Exposed column using recursive generic type - [`KT-78726`](https://youtrack.jetbrains.com/issue/KT-78726) Split runPsiToIr phase into runPsiToIr and runIrLinker - [`KT-77672`](https://youtrack.jetbrains.com/issue/KT-77672) K/N: come up with a fallback strategy for the casts optimization pass - [`KT-76365`](https://youtrack.jetbrains.com/issue/KT-76365) K2: Missing ABSTRACT\_SUPER\_CALL - [`KT-76585`](https://youtrack.jetbrains.com/issue/KT-76585) K2: RETURN\_IN\_FUNCTION\_WITH\_EXPRESSION\_BODY is not reported inside initializers of local variables - [`KT-79099`](https://youtrack.jetbrains.com/issue/KT-79099) K2: Do not inherit inline modifier - [`KT-76902`](https://youtrack.jetbrains.com/issue/KT-76902) Omit type-use annotations from diagnostics - [`KT-64499`](https://youtrack.jetbrains.com/issue/KT-64499) Report error on overloading by order of context parameters - [`KT-58988`](https://youtrack.jetbrains.com/issue/KT-58988) K2: Deprecate exposing package-private parameter of internal method - [`KT-77199`](https://youtrack.jetbrains.com/issue/KT-77199) OPT\_IN\_USAGE\_ERROR is still absent when calling the enum primary constructor - [`KT-72800`](https://youtrack.jetbrains.com/issue/KT-72800) K2: java.util.NoSuchElementException when introduce variable - [`KT-79056`](https://youtrack.jetbrains.com/issue/KT-79056) Add experimental language version 2.5 - [`KT-17460`](https://youtrack.jetbrains.com/issue/KT-17460) Diagnostics and intention on suspend function that is overriden with non-suspend one. - [`KT-78351`](https://youtrack.jetbrains.com/issue/KT-78351) Plugins: VIRTUAL\_MEMBER\_HIDDEN caused by FirSupertypeGenerationExtension - [`KT-78527`](https://youtrack.jetbrains.com/issue/KT-78527) No LESS\_VISIBLE\_TYPE\_ACCESS\_IN\_INLINE\_WARNING is reported when a private companion object is accessed via the class name - [`KT-79045`](https://youtrack.jetbrains.com/issue/KT-79045) FirExpectActualMatcherTransformer should not visit bodies - [`KT-74570`](https://youtrack.jetbrains.com/issue/KT-74570) K2: Linenumber for annotation on property is present in LVT - [`KT-74569`](https://youtrack.jetbrains.com/issue/KT-74569) K2: Linenumber of annotation is present in constructor's LVT - [`KT-64731`](https://youtrack.jetbrains.com/issue/KT-64731) K2: Annotation on inline function or inside inline function is hit by debugger - [`KT-77756`](https://youtrack.jetbrains.com/issue/KT-77756) Add experimental language version 2.4 - [`KT-78837`](https://youtrack.jetbrains.com/issue/KT-78837) linkReleaseFrameworkIosArm64: Compilation failed: An interface expected but was Any - [`KT-78945`](https://youtrack.jetbrains.com/issue/KT-78945) CONTRACT\_NOT\_ALLOWED is not reported for local operator functions - [`KT-78944`](https://youtrack.jetbrains.com/issue/KT-78944) ANNOTATION\_IN\_CONTRACT\_ERROR is not reported for operators and property accessors with contracts - [`KT-78943`](https://youtrack.jetbrains.com/issue/KT-78943) ERROR\_IN\_CONTRACT\_DESCRIPTION is not reported for operators and property accessors with contracts - [`KT-78932`](https://youtrack.jetbrains.com/issue/KT-78932) Contracts are allowed for open and overridden property accessors - [`KT-77203`](https://youtrack.jetbrains.com/issue/KT-77203) FIR: Consider adding destructured type to all COMPONENT\_FUNCTION\_\* diagnostics - [`KT-76635`](https://youtrack.jetbrains.com/issue/KT-76635) Implement Data-Flow Based Exhaustiveness Support - [`KT-78805`](https://youtrack.jetbrains.com/issue/KT-78805) K2: False positive METHOD\_OF\_ANY\_IMPLEMENTED\_IN\_INTERFACE - [`KT-78651`](https://youtrack.jetbrains.com/issue/KT-78651) No need to report LESS\_VISIBLE\_TYPE\_ACCESS\_IN\_INLINE\_WARNING in noinline default value lambda - [`KT-78849`](https://youtrack.jetbrains.com/issue/KT-78849) K2: \[Wasm, Fir2IR] Invalid smartcast on overloaded function call - [`KT-78793`](https://youtrack.jetbrains.com/issue/KT-78793) Make feature AllowEagerSupertypeAccessibilityChecks experimental - [`KT-78736`](https://youtrack.jetbrains.com/issue/KT-78736) Missing \[NOT\_YET\_SUPPORTED\_IN\_INLINE] diagnostics because of incorrect context update - [`KT-78324`](https://youtrack.jetbrains.com/issue/KT-78324) K2: False negative \[INCONSISTENT\_TYPE\_PARAMETER\_VALUES] - [`KT-69975`](https://youtrack.jetbrains.com/issue/KT-69975) KDoc: cannot reference elements with names in backticks - [`KT-78229`](https://youtrack.jetbrains.com/issue/KT-78229) KDoc: unable to reference a method with spaces in the name - [`KT-78047`](https://youtrack.jetbrains.com/issue/KT-78047) Render unnamed context parameters as \_ instead of <unused var> - [`KT-74621`](https://youtrack.jetbrains.com/issue/KT-74621) Debugger: AssertionError on evaluating two suspending calls - [`KT-78784`](https://youtrack.jetbrains.com/issue/KT-78784) Improve deprecation warnings about KTLC-284 - [`KT-76826`](https://youtrack.jetbrains.com/issue/KT-76826) New inference error \[NewConstraintError at Incorporate TypeVariable] caused by recursive generics and nullable expected type - [`KT-77685`](https://youtrack.jetbrains.com/issue/KT-77685) "IllegalArgumentException: Sequence contains more than one matching element" - [`KT-78028`](https://youtrack.jetbrains.com/issue/KT-78028) "FirNamedFunctionSymbol" leaks to the error message about missing infix modifier - [`KT-77245`](https://youtrack.jetbrains.com/issue/KT-77245) Add expression name to RETURN\_VALUE\_NOT\_USED diagnostic - [`KT-78071`](https://youtrack.jetbrains.com/issue/KT-78071) False-positive NO\_ELSE\_IN\_WHEN after variable reassignment - [`KT-78068`](https://youtrack.jetbrains.com/issue/KT-78068) False-positive NO\_ELSE\_IN\_WHEN after excluding enum value with inequality check - [`KT-71134`](https://youtrack.jetbrains.com/issue/KT-71134) Consider to get rid of CapturedTypeMarker.withNotNullProjection() - [`KT-77131`](https://youtrack.jetbrains.com/issue/KT-77131) getValue/setValue can be declared with more than two/three parameters - [`KT-78452`](https://youtrack.jetbrains.com/issue/KT-78452) Drop redundant frontend structures after fir2ir conversion - [`KT-78458`](https://youtrack.jetbrains.com/issue/KT-78458) Don't populate PredicateBasedProvider if no lookup predicates are registered - [`KT-78440`](https://youtrack.jetbrains.com/issue/KT-78440) Lambda with an implicitly runtime-retained annotation is generated via invokedynamic with `-Xindy-allow-annotated-lambdas=false` - [`KT-77709`](https://youtrack.jetbrains.com/issue/KT-77709) Missing diagnostics of accessing less visible objects in inline function - [`KT-77577`](https://youtrack.jetbrains.com/issue/KT-77577) False positive exposed type warnings - [`KT-77095`](https://youtrack.jetbrains.com/issue/KT-77095) FIR: Report warnings on exposure of references to invisible references in inline functions - [`KT-76981`](https://youtrack.jetbrains.com/issue/KT-76981) Move exposed type checker to regular checkers - [`KT-78252`](https://youtrack.jetbrains.com/issue/KT-78252) ClassCastException when `Array<Void>` used for compile-time vararg of `Nothing` - [`KT-77713`](https://youtrack.jetbrains.com/issue/KT-77713) Context Parameters cause compiler generate r8 incompatible bytecode - [`KT-71854`](https://youtrack.jetbrains.com/issue/KT-71854) K2 IDE. False positive red code because of external annotation on a generic parameter - [`KT-67335`](https://youtrack.jetbrains.com/issue/KT-67335) K2: Infers Int instead of Long for an ILT - [`KT-76629`](https://youtrack.jetbrains.com/issue/KT-76629) K2 Mode: False positive RedundantVisibilityModifier inspection on private constructors in sealed classes - [`KT-77728`](https://youtrack.jetbrains.com/issue/KT-77728) Drop controversial experimental checkers - [`KT-78429`](https://youtrack.jetbrains.com/issue/KT-78429) K2: Property callable reference incorrectly smart-casted to intersection of property type and KProperty - [`KT-78509`](https://youtrack.jetbrains.com/issue/KT-78509) Renamed for override copy functions are cached in scope instead of session - [`KT-17417`](https://youtrack.jetbrains.com/issue/KT-17417) Loops in delegation: no compilation error on non-abstract class with abstract method that never implemented - [`KT-75033`](https://youtrack.jetbrains.com/issue/KT-75033) Split JvmBackendPipelinePhase to be able to provide a custom implementation of writeOutputs - [`KT-75831`](https://youtrack.jetbrains.com/issue/KT-75831) K2: An extra "\[VALUE\_PARAMETER\_WITHOUT\_EXPLICIT\_TYPE] An explicit type is required on a value parameter." for a missing parameter - [`KT-78370`](https://youtrack.jetbrains.com/issue/KT-78370) All the \[something]Assign operators on dynamic return Unit as a type - [`KT-73950`](https://youtrack.jetbrains.com/issue/KT-73950) K2 IDE / Kotlin Debugger: ISE “Fake override should have at least one overridden descriptor” on evaluation of local calss in presence of bystander - [`KT-78280`](https://youtrack.jetbrains.com/issue/KT-78280) Implement the sourceless `KtDiagnostic`s - [`KT-76543`](https://youtrack.jetbrains.com/issue/KT-76543) Migrate psi2ir sources to new IR parameter API - [`KT-77716`](https://youtrack.jetbrains.com/issue/KT-77716) Kotlin/Native and -Xseparate-kmp-compilation: "Compilation failed: Several functions kotlin/native/immutableBlobOf found" - [`KT-76400`](https://youtrack.jetbrains.com/issue/KT-76400) Context-sensitive resolution doesn’t work in if-else condition passed as a function argument - [`KT-76606`](https://youtrack.jetbrains.com/issue/KT-76606) Enable 'Indy: Allow lambdas with annotations' by default - [`KT-76739`](https://youtrack.jetbrains.com/issue/KT-76739) Dubious argument type mismatch "actual type is 'String', but 'String' was expected" caused by wrong number of type arguments - [`KT-78121`](https://youtrack.jetbrains.com/issue/KT-78121) Report warning on function type with multiple implicit values that's annotated with DSL marker - [`KT-76872`](https://youtrack.jetbrains.com/issue/KT-76872) Anonymous context parameters are not visible in debugger - [`KT-74088`](https://youtrack.jetbrains.com/issue/KT-74088) Kotlin Debugger: CCE on evaluating private suspend function - [`KT-77301`](https://youtrack.jetbrains.com/issue/KT-77301) False positive Context Parameter resolution when using DslMarker - [`KT-78230`](https://youtrack.jetbrains.com/issue/KT-78230) Add more test cases to the holdsIn contracts - [`KT-78111`](https://youtrack.jetbrains.com/issue/KT-78111) K2: Approximation of captured star projection in function type produces `Function1<Nothing?, Unit>` in IR - [`KT-77273`](https://youtrack.jetbrains.com/issue/KT-77273) K/N: Remove the kotlin.native.internal.Ref class from the standard library - [`KT-73995`](https://youtrack.jetbrains.com/issue/KT-73995) JVM bytecode: Bad name for value class field - [`KT-73013`](https://youtrack.jetbrains.com/issue/KT-73013) Kotlin Debugger: ISE “No mapping for symbol: VALUE\_PARAMETER” on evaluating callable reference to local function with closure in it - [`KT-77665`](https://youtrack.jetbrains.com/issue/KT-77665) K2: unresolved annotatation on local context parameter type - [`KT-77485`](https://youtrack.jetbrains.com/issue/KT-77485) Add constraints logging to inference - [`KT-76504`](https://youtrack.jetbrains.com/issue/KT-76504) Find and deprecate actively used parts of K1 API - [`KT-75338`](https://youtrack.jetbrains.com/issue/KT-75338) K2 Mode: False positive "Redundant assignment" diagnostic on variable captured by local function - [`KT-77648`](https://youtrack.jetbrains.com/issue/KT-77648) K2: False negative DSL\_SCOPE\_VIOLATION when using named argument for lambda with annotated function type - [`KT-77355`](https://youtrack.jetbrains.com/issue/KT-77355) Report warning on overloading by a superset of another overload's context parameters - [`KT-77354`](https://youtrack.jetbrains.com/issue/KT-77354) Report warning on overloading by a subtype of another overload's context parameter - [`KT-78084`](https://youtrack.jetbrains.com/issue/KT-78084) Unify deprecation warning messages - [`KT-76776`](https://youtrack.jetbrains.com/issue/KT-76776) `@MustUseReturnValue` doesn't affect nested scopes - [`KT-77545`](https://youtrack.jetbrains.com/issue/KT-77545) `@NoInfer` on receiver type leads to false positive type mismatch when generic type is specified explicitly and closest implicit receiver is of incorrect type - [`KT-76772`](https://youtrack.jetbrains.com/issue/KT-76772) `@NoInfer` on a context parameter's type leads to a false-positive context argument ambiguity error regardless of the closest implicit values' types if there are multiple of them at the call site - [`KT-76771`](https://youtrack.jetbrains.com/issue/KT-76771) `@NoInfer` on context parameter type leads to a false-positive type mismatch when generic type is specified explicitly and closest implicit value at the call site is of a mismatching type - [`KT-77156`](https://youtrack.jetbrains.com/issue/KT-77156) INITIALIZATION\_BEFORE\_DECLARATION is not reported in anonymous object - [`KT-78060`](https://youtrack.jetbrains.com/issue/KT-78060) UNRESOLVED\_REFERENCE in fp-space - [`KT-67555`](https://youtrack.jetbrains.com/issue/KT-67555) Debug metadata: map the Continuation label to the next executable location in file - [`KT-77723`](https://youtrack.jetbrains.com/issue/KT-77723) Refine the message for ArrayEqualityCanBeReplacedWithEquals checker - [`KT-75178`](https://youtrack.jetbrains.com/issue/KT-75178) Inline functions in conjunction with `@JvmStatic` may result in bytecode errors - [`KT-77390`](https://youtrack.jetbrains.com/issue/KT-77390) Prototype lazy loading of stdlib symbols in Native - [`KT-77921`](https://youtrack.jetbrains.com/issue/KT-77921) False positive EXTENSION\_SHADOWED\_BY\_MEMBER when member has context parameters - [`KT-77895`](https://youtrack.jetbrains.com/issue/KT-77895) false-negative error on package directives with context parameter lists (even with context parameters disabled) - [`KT-76767`](https://youtrack.jetbrains.com/issue/KT-76767) AMBIGUOUS\_CONTEXT\_ARGUMENT should report the name of the context parameter in addition to the type - [`KT-77444`](https://youtrack.jetbrains.com/issue/KT-77444) K2: False negative "Unchecked cast" with casting from MutableList<out T> to MutableList<T> - [`KT-63348`](https://youtrack.jetbrains.com/issue/KT-63348) K2: FIR2IR should properly pass expected types - [`KT-77627`](https://youtrack.jetbrains.com/issue/KT-77627) K2: consider getting rid of NEW\_INFERENCE\_ERROR - [`KT-75833`](https://youtrack.jetbrains.com/issue/KT-75833) K2: Extra \[ANNOTATION\_ARGUMENT\_MUST\_BE\_CONST] when passing regex-like strings as annotation arguments - [`KT-77547`](https://youtrack.jetbrains.com/issue/KT-77547) Native: add a check that the logic looking for stdlib-related bitcode is not used when compiling sources to a klib - [`KT-77206`](https://youtrack.jetbrains.com/issue/KT-77206) Remove `PARAMETER_NAME_CHANGED_ON_OVERRIDE` suppression in KMP lexers - [`KT-77679`](https://youtrack.jetbrains.com/issue/KT-77679) Update syntax-api dependency in KMP Kotlin parser - [`KT-77705`](https://youtrack.jetbrains.com/issue/KT-77705) K2: Consuming data class compiled with kotlin 1.0.5 breaks the K2 compiler - [`KT-76583`](https://youtrack.jetbrains.com/issue/KT-76583) CCE: suspend lambda attempts to unbox value class parameter twice after lambda suspended - [`KT-76663`](https://youtrack.jetbrains.com/issue/KT-76663) KJS: KotlinNothingValueException caused by expression return since 2.1.20 - [`KT-75457`](https://youtrack.jetbrains.com/issue/KT-75457) Native: cache machinery uses stdlib cache with default runtime options even if custom runtime options are supplied when partial linkage is disabled - [`KT-77563`](https://youtrack.jetbrains.com/issue/KT-77563) False-positive smart cast with captured local in init block causes NPE - [`KT-77696`](https://youtrack.jetbrains.com/issue/KT-77696) ISE "couldn't find inline method" on kotlin/Result compiled by old Kotlin version - [`KT-76931`](https://youtrack.jetbrains.com/issue/KT-76931) K2: Annotation on do-while expression captures variables from inside the loop - [`KT-77183`](https://youtrack.jetbrains.com/issue/KT-77183) Metadata: remove multi-field value class representation - [`KT-77678`](https://youtrack.jetbrains.com/issue/KT-77678) Apply found optimization to Kotlin KMP parser - [`KT-60127`](https://youtrack.jetbrains.com/issue/KT-60127) K2: Support scripts with LightTree-based raw FIR building - [`KT-76615`](https://youtrack.jetbrains.com/issue/KT-76615) K2: "IllegalArgumentException: Inline class types should have the same representation: Lkotlin/UByte; != B" for mixed Java/Kotlin code - [`KT-77220`](https://youtrack.jetbrains.com/issue/KT-77220) Annotation with EXPRESSION is not allowed on lambdas in Kotlin 2.2.0 - [`KT-77656`](https://youtrack.jetbrains.com/issue/KT-77656) K/N: fix the super type for local delegated properties - [`KT-75907`](https://youtrack.jetbrains.com/issue/KT-75907) Inference/PCLA: consider storing semi-fixed variables in inference session - [`KT-77144`](https://youtrack.jetbrains.com/issue/KT-77144) Implement KMP Kotlin parser - [`KT-77352`](https://youtrack.jetbrains.com/issue/KT-77352) Implement KMP Expression parser - [`KT-76984`](https://youtrack.jetbrains.com/issue/KT-76984) SYNCHRONIZED\_BLOCK\_ON\_JAVA\_VALUE\_BASED\_CLASS isn't reported for primitive wrapper classes instantiated within the scope - [`KT-67471`](https://youtrack.jetbrains.com/issue/KT-67471) K2: "Unresolved reference" on incorrect term of FQ name - [`KT-77269`](https://youtrack.jetbrains.com/issue/KT-77269) \[K/N] external calls checker crashes when used with caches - [`KT-77205`](https://youtrack.jetbrains.com/issue/KT-77205) Kotlin Debugger / Context Parameters: CCE “class FirPropertySymbol cannot be cast to class FirFunctionSymbol” on evaluating class property - [`KT-74133`](https://youtrack.jetbrains.com/issue/KT-74133) FIR: use EmptyDeprecationsPerUseSite consistently in symbols - [`KT-77100`](https://youtrack.jetbrains.com/issue/KT-77100) java.lang.Void type is not ignorable - [`KT-77491`](https://youtrack.jetbrains.com/issue/KT-77491) K2: No SUPERTYPE\_IS\_EXTENSION\_FUNCTION\_TYPE when using typealias - [`KT-77490`](https://youtrack.jetbrains.com/issue/KT-77490) Report error on contextual function type in supertype - [`KT-77431`](https://youtrack.jetbrains.com/issue/KT-77431) Functional type with a context is allowed as an upper-bound - [`KT-77432`](https://youtrack.jetbrains.com/issue/KT-77432) Context isn't passed properly when functional type with a context is used as a type argument - [`KT-77417`](https://youtrack.jetbrains.com/issue/KT-77417) There is no TYPE\_VARIANCE\_CONFLICT\_ERROR when 'out' type is used in context - [`KT-62631`](https://youtrack.jetbrains.com/issue/KT-62631) Improve expect-actual "checking" incompatibilities reporting - [`KT-77481`](https://youtrack.jetbrains.com/issue/KT-77481) Support ExpectRefinement feature in HMPP compilation scheme - [`KT-77268`](https://youtrack.jetbrains.com/issue/KT-77268) Make sure that -Xreturn-value-checker also enables -XX:UnnamedLocalVariables - [`KT-65719`](https://youtrack.jetbrains.com/issue/KT-65719) K1/K2: Nullness defaults from subclass unsoundly applied to method in superclass - [`KT-53836`](https://youtrack.jetbrains.com/issue/KT-53836) In type-parameter declarations, recognize JSpecify annotations only on *bounds* - [`KT-73658`](https://youtrack.jetbrains.com/issue/KT-73658) JSpecify `@NonNull` annotation on type-parameter bound prevents type-variable usages from being platform types - [`KT-77000`](https://youtrack.jetbrains.com/issue/KT-77000) Leave ForbidInferOfInvisibleTypeAsReifiedOrVararg as a warning - [`KT-74084`](https://youtrack.jetbrains.com/issue/KT-74084) K2: False negative \[NO\_ELSE\_IN\_WHEN] - [`KT-77451`](https://youtrack.jetbrains.com/issue/KT-77451) FirLazyResolveContractViolationException for test with overridden delegate - [`KT-77397`](https://youtrack.jetbrains.com/issue/KT-77397) Report UNSUPPORTED\_CONTEXTUAL\_DECLARATION\_CALL when calling declaration with contextual function type in signature - [`KT-77137`](https://youtrack.jetbrains.com/issue/KT-77137) K2: Controversial behavior allows resolving annotation arguments on a companion inside it - [`KT-77257`](https://youtrack.jetbrains.com/issue/KT-77257) Report compilation error when in generated JVM bytecode there is a need for CHECKCAST of the conditional expression to the inaccessible interface - [`KT-77256`](https://youtrack.jetbrains.com/issue/KT-77256) Report compilation error when in generated JVM bytecode there is a need for CHECKCAST of the functional call result to the inaccessible interface - [`KT-76356`](https://youtrack.jetbrains.com/issue/KT-76356) K2 evaluation fails on evaluating inline methods if there is an inline with AutoCloseable - [`KT-73786`](https://youtrack.jetbrains.com/issue/KT-73786) Evaluator: cannot evaluate inline methods with reified parameter - [`KT-77204`](https://youtrack.jetbrains.com/issue/KT-77204) Native: XCode strip command causes flaky tests - [`KT-77351`](https://youtrack.jetbrains.com/issue/KT-77351) Implement KMP KDoc parser - [`KT-76914`](https://youtrack.jetbrains.com/issue/KT-76914) compile-time failure on a type argument placeholder in a callable reference - [`KT-76597`](https://youtrack.jetbrains.com/issue/KT-76597) False negative opt-in required on delegated constructor call - [`KT-76667`](https://youtrack.jetbrains.com/issue/KT-76667) Mark the class implementation of interface function with ACC\_BRIDGE in the class file - [`KT-77181`](https://youtrack.jetbrains.com/issue/KT-77181) K2: a nested typealias annotation observes member declarations of the outer class - [`KT-77180`](https://youtrack.jetbrains.com/issue/KT-77180) K2: Wrong scope for annotation arguments in the constructor header - [`KT-77287`](https://youtrack.jetbrains.com/issue/KT-77287) Try enforcing `source != null` when `origin == Source` - [`KT-76135`](https://youtrack.jetbrains.com/issue/KT-76135) K2: drop pre-1.8 language features from compiler code - [`KT-77231`](https://youtrack.jetbrains.com/issue/KT-77231) Reflection: CCE on resuming coroutine after callSuspend if result is a generic inline class substituted with primitive - [`KT-77031`](https://youtrack.jetbrains.com/issue/KT-77031) Investigate the actual need of deduplicating provider in HMPP compilation scheme - [`KT-77050`](https://youtrack.jetbrains.com/issue/KT-77050) Implement KMP KDoc lexer - [`KT-77048`](https://youtrack.jetbrains.com/issue/KT-77048) Implement KMP Kotlin lexer - [`KT-77044`](https://youtrack.jetbrains.com/issue/KT-77044) Consolidate, refine and update jFlex dependency - [`KT-77252`](https://youtrack.jetbrains.com/issue/KT-77252) It is impossible to declare an unnamed variable in a script - [`KT-58137`](https://youtrack.jetbrains.com/issue/KT-58137) K2: ISE "Usage of default value argument for this annotation is not yet possible" when instantiating Kotlin annotation with default parameter from another module - [`KT-77140`](https://youtrack.jetbrains.com/issue/KT-77140) Protect ConstraintSystemCompletionMode.UNTIL\_FIRST\_LAMBDA with opt-in - [`KT-76898`](https://youtrack.jetbrains.com/issue/KT-76898) K2: ClassCastException when data class shadows supertype's `componentX` method with wrong type - [`KT-75695`](https://youtrack.jetbrains.com/issue/KT-75695) Bogus "Assigned value is never read" warning for prefix ++ operator - [`KT-76805`](https://youtrack.jetbrains.com/issue/KT-76805) Wrong NPE occurs when assigning synthetic properties with platform types in Kotlin 2.1.20 - [`KT-77078`](https://youtrack.jetbrains.com/issue/KT-77078) K2: anonymous object is wrongly allowed to implement interfaces by unsafe Delegation - [`KT-72722`](https://youtrack.jetbrains.com/issue/KT-72722) Treat 'copy' calls of a data class as explicit constructor usages - [`KT-77149`](https://youtrack.jetbrains.com/issue/KT-77149) IllegalArgumentException: source must not be null - [`KT-76806`](https://youtrack.jetbrains.com/issue/KT-76806) K2: AIOOBE in FirEqualityCompatibilityChecker - [`KT-72391`](https://youtrack.jetbrains.com/issue/KT-72391) KJS: (a \* b).toDouble\_ygsx0s\_k$ is not a function - [`KT-76950`](https://youtrack.jetbrains.com/issue/KT-76950) K2: "IllegalArgumentException: Inline class types should have the same representation: Lkotlin/UByte; != B" with nullable UByte - [`KT-76043`](https://youtrack.jetbrains.com/issue/KT-76043) Native: NotImplementedError: Generation of stubs for class org.jetbrains.kotlin.ir.symbols.impl.IrFieldSymbolImpl is not supported yet - [`KT-77126`](https://youtrack.jetbrains.com/issue/KT-77126) Transitive dependency mismatch between Kotlin Gradle Plugin and Scripting dependencies - [`KT-72831`](https://youtrack.jetbrains.com/issue/KT-72831) ANNOTATION\_USED\_AS\_ANNOTATION\_ARGUMENT missing in some cases in K2 - [`KT-73707`](https://youtrack.jetbrains.com/issue/KT-73707) Remove dependency on ":compiler:backend.jvm" from Native - [`KT-75499`](https://youtrack.jetbrains.com/issue/KT-75499) CheckerContext#{containingDeclaration, containingFile} in checkers should return symbols - [`KT-76548`](https://youtrack.jetbrains.com/issue/KT-76548) False positive TYPE\_MISMATCH when resolving an expression with the expected type from the upper bound - [`KT-76142`](https://youtrack.jetbrains.com/issue/KT-76142) K2: `@RequiresOptIn` warning does not display the custom message when using concatenated strings. - [`KT-68699`](https://youtrack.jetbrains.com/issue/KT-68699) Kotlin Debugger: UPAE “lateinit property parent has not been initialized” on trying evaluate enumValues<T>(), enumEntries<T>() from inlined function with reified parameter - [`KT-63267`](https://youtrack.jetbrains.com/issue/KT-63267) K2: incorrect line numbers after smart cast of an extension receiver - [`KT-71309`](https://youtrack.jetbrains.com/issue/KT-71309) Kotlin Debugger: UnsupportedOperationException on calling method with reified type parameter - [`KT-74912`](https://youtrack.jetbrains.com/issue/KT-74912) K2: Investigate irrelevant ARGUMENT\_TYPE\_MISMATCH on top-level lambdas - [`KT-74657`](https://youtrack.jetbrains.com/issue/KT-74657) K2: Linenumber for annotation on local variable is present in LVT - [`KT-76749`](https://youtrack.jetbrains.com/issue/KT-76749) NONE\_APPLICABLE message is unreadable for stdlib context function - [`KT-74932`](https://youtrack.jetbrains.com/issue/KT-74932) Investigate false-negative ARGUMENT\_TYPE\_MISMATCH on a nested anonymous function - [`KT-74545`](https://youtrack.jetbrains.com/issue/KT-74545) Redundant TYPE\_MISMATCH in variable initializer with call - [`KT-76774`](https://youtrack.jetbrains.com/issue/KT-76774) K2: Simplify ResolutionMode.WithExpectedType contracts - [`KT-76689`](https://youtrack.jetbrains.com/issue/KT-76689) Unnamed local variable with type and without initializer is allowed - [`KT-76746`](https://youtrack.jetbrains.com/issue/KT-76746) ClassCastException: class org.jetbrains.kotlin.fir.types.impl.FirUserTypeRefImpl cannot be cast to class - [`KT-76754`](https://youtrack.jetbrains.com/issue/KT-76754) K2: Compiler doesn't check annotations on array literals (as annotation arguments) - [`KT-76674`](https://youtrack.jetbrains.com/issue/KT-76674) The function isn't called from unnamed local variable initializer - [`KT-75553`](https://youtrack.jetbrains.com/issue/KT-75553) `MISSING_DEPENDENCY_SUPERCLASS` and `MISSING_DEPENDENCY_SUPERCLASS_WARNING` is reported at the same time on the same element - [`KT-76345`](https://youtrack.jetbrains.com/issue/KT-76345) Enhance variable fixation - [`KT-73348`](https://youtrack.jetbrains.com/issue/KT-73348) AssertionError from isCompiledToJvmDefault on super call of suspend function with composable function parameter - [`KT-72305`](https://youtrack.jetbrains.com/issue/KT-72305) K2: Report error when using synthetic properties in case of mapped collections - [`KT-73527`](https://youtrack.jetbrains.com/issue/KT-73527) Prohibit (via a deprecation warning) accessing nested class through generic outer class - [`KT-59886`](https://youtrack.jetbrains.com/issue/KT-59886) K2: Disappeared ERROR\_IN\_CONTRACT\_DESCRIPTION - [`KT-61227`](https://youtrack.jetbrains.com/issue/KT-61227) Definitely non-nullable types cause "Any was expected" for `@Nullable` parameter - [`KT-57911`](https://youtrack.jetbrains.com/issue/KT-57911) K2: Contracts are not inherited by substitution overrides - [`KT-47398`](https://youtrack.jetbrains.com/issue/KT-47398) 'null' EnhancedNullability value in String-based 'when' might produce different behavior depending on whether 'when' is "optimized" or not ##### Compose compiler - [`CMP-7505`](https://youtrack.jetbrains.com/issue/CMP-7505) IrLinkageError: Function can not be called: No function found for symbol - [`b/432262806`](https://issuetracker.google.com/issues/432262806) Fix target description lookup - [`b/436870733`](https://issuetracker.google.com/issues/436870733) Prevent lambda memoization in local classes inside a composable - [`b/432485982`](https://issuetracker.google.com/issues/432485982) Fix AbstractMethodError when overriding function with default parameters - [`b/432262806`](https://issuetracker.google.com/issues/432262806) Use classId as FirApplierInferencer tokens - [`b/400371006`](https://issuetracker.google.com/issues/400371006) Gate default parameters behind language versions - [`b/245673006`](https://issuetracker.google.com/issues/245673006) Specify fqName for classes and functions in build metrics - [`b/254577243`](https://issuetracker.google.com/issues/254577243) Avoid printing complex expressions in compiler metrics - [`b/394891628`](https://issuetracker.google.com/issues/394891628) Allow specifying target version of Compose runtime - [`b/424454512`](https://issuetracker.google.com/issues/424454512) Recreate FirApplierInferencer for each check - [`b/417406922`](https://issuetracker.google.com/issues/417406922) Restrict references to `@Composable` properties - [`b/282135108`](https://issuetracker.google.com/issues/282135108), [`b/349866442`](https://issuetracker.google.com/issues/349866442) \[Compose] Enable applier checking when using FIR - [`b/307592552`](https://issuetracker.google.com/issues/307592552) Add BigInteger and BigDecimal to the list of known stable classes - [`b/414547195`](https://issuetracker.google.com/issues/414547195) Unwrap type casts when inferring `@Composable` call arguments ##### IR. Inlining ##### New Features - [`KT-70360`](https://youtrack.jetbrains.com/issue/KT-70360) KLIBs: Uniformly handle`typeOf()` calls at 1st/2nd stages of compilation ##### Fixes - [`KT-79002`](https://youtrack.jetbrains.com/issue/KT-79002) \[Inliner]\[Native]\[PL] Native backend fails for inline function that instantiates a class that was compiled implementing two interfaces, which turned into abstract classes - [`KT-78137`](https://youtrack.jetbrains.com/issue/KT-78137) Review & enable PL tests with enabled IR inliner - [`KT-72464`](https://youtrack.jetbrains.com/issue/KT-72464) \[Native]\[JS]\[Wasm] Non-local return through suspend conversion breaks the IR inliner - [`KT-69941`](https://youtrack.jetbrains.com/issue/KT-69941) Rewrite `DumpSyntheticAccessors` lowering to test handler after moving common Native/JS prefix to KLIB compilation - [`KT-78245`](https://youtrack.jetbrains.com/issue/KT-78245) Synthetic Accessors incorrectly copies default values - [`KT-76236`](https://youtrack.jetbrains.com/issue/KT-76236) Include `NativeInliningFacade` and `JsIrInliningFacade` in all Native & JS test runners - [`KT-76512`](https://youtrack.jetbrains.com/issue/KT-76512) Avoid using `originalFunction` inside `FunctionInlining` - [`KT-69457`](https://youtrack.jetbrains.com/issue/KT-69457) \[references] IR Inliner: References to inline functions are not inlined - [`KT-47521`](https://youtrack.jetbrains.com/issue/KT-47521) Native & JS: Recursive inline fun calls -> StackOverflowError - [`KT-76425`](https://youtrack.jetbrains.com/issue/KT-76425) Do not store signatures of preprocessed inline functions in KLIBs - [`KT-76763`](https://youtrack.jetbrains.com/issue/KT-76763) \[Inliner] Don't use attributeOwnerId to pass info from Inliner to non-JVM backends - [`KT-77102`](https://youtrack.jetbrains.com/issue/KT-77102) \[Inliner] Expression uses unlinked type parameter symbol - [`KT-76145`](https://youtrack.jetbrains.com/issue/KT-76145) Enhance error message about poisoned KLIBs in KLIB-based compilers - [`KT-77079`](https://youtrack.jetbrains.com/issue/KT-77079) IR: Report warnings on exposure of references to invisible declarations in inline functions - [`KT-69797`](https://youtrack.jetbrains.com/issue/KT-69797) \[references] Accessors for private function/constructor/property references are not generated - [`KT-76454`](https://youtrack.jetbrains.com/issue/KT-76454) Investigate erasure of class type parameters during inliner - [`KT-72593`](https://youtrack.jetbrains.com/issue/KT-72593) \[K/N] Add NativeIrInliningFacade to CrossCompilationIdentityTest - [`KT-70969`](https://youtrack.jetbrains.com/issue/KT-70969) IR Inliner: Ensure that common prefix at 1st phase does not affect KLIB signatures - [`KT-75937`](https://youtrack.jetbrains.com/issue/KT-75937) \[IR Inliner] Umbrella for failing tests due to public inliner - [`KT-77295`](https://youtrack.jetbrains.com/issue/KT-77295) Improve Diagnostic Message Formatting for Private API Exposure in Inline Functions - [`KT-77047`](https://youtrack.jetbrains.com/issue/KT-77047) Ir Ininler: crash on fake override in private class from more visible class - [`KT-77336`](https://youtrack.jetbrains.com/issue/KT-77336) \[references] Synthetic accessor test for private top-level function accessed via reference fails with `No function found for symbol` - [`KT-76761`](https://youtrack.jetbrains.com/issue/KT-76761) \[Inliner] non-JVM IR Inliner incorrectly uses K/JVM-specific code - [`KT-76712`](https://youtrack.jetbrains.com/issue/KT-76712) \[Inliner] No function found for symbol '/<unknown name>|?' - [`KT-76711`](https://youtrack.jetbrains.com/issue/KT-76711) \[Inliner] Reference to function 'privateMethod' can not be evaluated ##### IR. Tree - [`KT-77508`](https://youtrack.jetbrains.com/issue/KT-77508) K/JS and K/Native CompilationException Wrong number of parameters in wrapper - [`KT-78978`](https://youtrack.jetbrains.com/issue/KT-78978) PL tests: Drop `adjust*forLazyIr()` hack - [`KT-76813`](https://youtrack.jetbrains.com/issue/KT-76813) IR validator: not all symbols/references are visited - [`KT-77596`](https://youtrack.jetbrains.com/issue/KT-77596) Refine `reuseExistingSignaturesForSymbols` setting in IR serializer - [`KT-76723`](https://youtrack.jetbrains.com/issue/KT-76723) IR validator: Check visibilities of annotations - [`KT-76405`](https://youtrack.jetbrains.com/issue/KT-76405) Visit annotations in IrTypeVisitor and IrTreeSymbolsVisitor - [`KT-78033`](https://youtrack.jetbrains.com/issue/KT-78033) \[PL] Merge `IrUnimplementedOverridesStrategy` to `PartiallyLinkedIrTreePatcher` ##### JVM. Reflection - [`KT-77882`](https://youtrack.jetbrains.com/issue/KT-77882) kotlin-reflect: KParameter.name returns "<unused var>" instead of null for anonymous context parameters - [`KT-77879`](https://youtrack.jetbrains.com/issue/KT-77879) kotlin-reflect: toString overrides of KCallable implementations do not render context parameters - [`KT-74529`](https://youtrack.jetbrains.com/issue/KT-74529) Context parameters support in reflection - [`KT-52170`](https://youtrack.jetbrains.com/issue/KT-52170) Reflection: typeOf\<Array<Long>> gives classifier LongArray - [`KT-77663`](https://youtrack.jetbrains.com/issue/KT-77663) Reflection: java.util.ServiceConfigurationError: "module kotlin.reflect does not declare `uses`" when using kotlin-reflect in modular mode ##### JavaScript ##### New Features - [`KT-79222`](https://youtrack.jetbrains.com/issue/KT-79222) K/JS: Allow using Long in exported declarations - [`KT-79394`](https://youtrack.jetbrains.com/issue/KT-79394) Add the possibility to write common external declarations between JS and WasmJS targets - [`KT-70486`](https://youtrack.jetbrains.com/issue/KT-70486) K/JS: exported exception types should extend Error - [`KT-19016`](https://youtrack.jetbrains.com/issue/KT-19016) Define accessors as enumerable ##### Performance Improvements - [`KT-57128`](https://youtrack.jetbrains.com/issue/KT-57128) KJS: Use BigInt to represent Long values in ES6 mode - [`KT-54689`](https://youtrack.jetbrains.com/issue/KT-54689) KJS: Data class equals less efficient than manually written version ##### Fixes - [`KT-69297`](https://youtrack.jetbrains.com/issue/KT-69297) Deprecate referencing inlineable lambdas in `js()` calls - [`KT-77620`](https://youtrack.jetbrains.com/issue/KT-77620) Fix failing IC tests on Windows - [`KT-77372`](https://youtrack.jetbrains.com/issue/KT-77372) KJS: NullPointerException at JsIntrinsics$JsReflectionSymbols - [`KT-78316`](https://youtrack.jetbrains.com/issue/KT-78316) KJS: List is not exported to TypeScript declaration if wrapped in Promise - [`KT-79644`](https://youtrack.jetbrains.com/issue/KT-79644) BigInt enabled for ES 2015 despite being an ES 2020 feature - [`KT-79089`](https://youtrack.jetbrains.com/issue/KT-79089) KJS: Could not load reporter / Cannot find module 'mocha' when running jsNode tests - [`KT-79916`](https://youtrack.jetbrains.com/issue/KT-79916) K/JS: "Uncaught TypeError" when using 'Xes-long-as-bigint' in compose-html - [`KT-79050`](https://youtrack.jetbrains.com/issue/KT-79050) KJS / IC: "Unexpected body of primary constructor for processing irClass" - [`KT-79977`](https://youtrack.jetbrains.com/issue/KT-79977) KJS: Long.rotateLeft returns incorrect result when BigInts are enabled - [`KT-76093`](https://youtrack.jetbrains.com/issue/KT-76093) Support new callable reference nodes in partial linkage in Kotlin/JS - [`KT-78073`](https://youtrack.jetbrains.com/issue/KT-78073) K/JS: KProperty from local delegate changes after another delegate is invoked - [`KT-52230`](https://youtrack.jetbrains.com/issue/KT-52230) KSJ IR: Applying identity equality operator to Longs always returns false - [`KT-6675`](https://youtrack.jetbrains.com/issue/KT-6675) KotlinJS: toInt() on external Long throws error - [`KT-79184`](https://youtrack.jetbrains.com/issue/KT-79184) K/JS: Further intrinsify BigInt-backed Long operations - [`KT-78701`](https://youtrack.jetbrains.com/issue/KT-78701) Js and Wasm: enumValueOf does not include invalid value into an exception message - [`KT-55256`](https://youtrack.jetbrains.com/issue/KT-55256) KJS: non-exported subclass with a no-parameter function overload doesn't compile - [`KT-76034`](https://youtrack.jetbrains.com/issue/KT-76034) passProcessArgvToMainFunction contains the node path and script path - [`KT-66091`](https://youtrack.jetbrains.com/issue/KT-66091) KJS, WASM: `AssertionError: Illegal value: <T>` in test nonReified\_equality.kt - [`KT-78169`](https://youtrack.jetbrains.com/issue/KT-78169) KJS: \[NON\_EXPORTABLE\_TYPE] with `@JsExport` class if `@JsStatic` companion method returns an out type - [`KT-57192`](https://youtrack.jetbrains.com/issue/KT-57192) KJS: "Exported declaration uses non-exportable return type" caused by `@JsExport` Promise with Unit type - [`KT-61183`](https://youtrack.jetbrains.com/issue/KT-61183) KJS: "AssertionError: Assertion failed" from JsSuspendFunctionsLowering - [`KT-59326`](https://youtrack.jetbrains.com/issue/KT-59326) KJS / IR: invalid code generated when using constructor parameter named `default` - [`KT-70295`](https://youtrack.jetbrains.com/issue/KT-70295) KLIB stdlib: Unify intrinsics for boxing captured variables in lambdas across non-JVM backends - [`KT-77021`](https://youtrack.jetbrains.com/issue/KT-77021) CompilationException: Encountered a local class not previously collected on inner classes inside anonymous objects - [`KT-77320`](https://youtrack.jetbrains.com/issue/KT-77320) KJS: Big.js times() is compiled to multiply (\*) operator - [`KT-77430`](https://youtrack.jetbrains.com/issue/KT-77430) K/JS: Remove sharedBox\* intrinsics from the standard library - [`KT-73267`](https://youtrack.jetbrains.com/issue/KT-73267) KJS: IC: "FileNotFoundException": Build failures with Kotlin 2.1-RC and RC2 - [`KT-76912`](https://youtrack.jetbrains.com/issue/KT-76912) KJS: `@JsStatic` can't be used for companion objects implementing external interfaces - [`KT-77271`](https://youtrack.jetbrains.com/issue/KT-77271) KJS / Serialization: "Cannot set property message of Error which has only a getter" - [`KT-77242`](https://youtrack.jetbrains.com/issue/KT-77242) Kotlin/JS & Kotlin/Wasm backends: Artificially apply reverse topo-order after IR linkage - [`KT-77649`](https://youtrack.jetbrains.com/issue/KT-77649) KJS: es-arrow-functions requires explicit opt-in when target is ES2015 - [`KT-76235`](https://youtrack.jetbrains.com/issue/KT-76235) \[JS] Extra invalid line `tmp_0.tmp00__1 = Options;` in testSuspendFunction() - [`KT-76234`](https://youtrack.jetbrains.com/issue/KT-76234) \[JS] Extra invalid line `Parent` in testNested() - [`KT-76233`](https://youtrack.jetbrains.com/issue/KT-76233) \[JS] Extra invalid import line in testJsQualifier() - [`KT-77190`](https://youtrack.jetbrains.com/issue/KT-77190) Migrate JS diagnostic tests to the new CLI-based test facades (1st phase only) - [`KT-77418`](https://youtrack.jetbrains.com/issue/KT-77418) KJS: cannot debug with whole-program granularity - [`KT-77371`](https://youtrack.jetbrains.com/issue/KT-77371) \[K/N]\[K/JS]\[K/Wasm] Unify visibility rules for generated default argument stubs - [`KT-77148`](https://youtrack.jetbrains.com/issue/KT-77148) KJS: "Uncaught TypeError: (intermediate value).l(...).m is not a function" during production build run - [`KT-77193`](https://youtrack.jetbrains.com/issue/KT-77193) Migrate JS irText tests to the new CLI-based test facades (1st phase only) - [`KT-77192`](https://youtrack.jetbrains.com/issue/KT-77192) Migrate JS ABI reader tests to the new CLI-based test facades (1st phase only) - [`KT-77187`](https://youtrack.jetbrains.com/issue/KT-77187) Migrate JS box tests to the new CLI-based test facades (1st phase only) - [`KT-77027`](https://youtrack.jetbrains.com/issue/KT-77027) Migrate 1st phase facades to the phased CLI infrastructure in JS tests - [`KT-69591`](https://youtrack.jetbrains.com/issue/KT-69591) KJS / d.ts: Wrong type of SerializerFactory for abstract classes - [`KT-76027`](https://youtrack.jetbrains.com/issue/KT-76027) KJS: "ReferenceError: entries is not defined": Accessing entries of an enum arbitrarily fails with println() - [`KT-76232`](https://youtrack.jetbrains.com/issue/KT-76232) Suspend contextual function with extension receiver results in wrong values at runtime in JS - [`KT-42305`](https://youtrack.jetbrains.com/issue/KT-42305) KJS / IR: "Class constructor is marked as private" `@JsExport` produces wrong TS code for sealed classes - [`KT-52563`](https://youtrack.jetbrains.com/issue/KT-52563) KJS / IR: Invalid TypeScript generated for class extending base class with private constructor ##### Klibs ##### New Features - [`KT-78699`](https://youtrack.jetbrains.com/issue/KT-78699) Compiler (JS, Wasm): warn about incompatible kotlin-test/compiler pair - [`KT-78700`](https://youtrack.jetbrains.com/issue/KT-78700) Compiler (JS, Wasm): Consider making diagnostics for incompatible kotlin-stdlib/compiler and kotlin-test/compiler pairs errors instead of warnings - [`KT-74815`](https://youtrack.jetbrains.com/issue/KT-74815) KLIB resolver can't consume metadata klibs between source sets when abi\_versions diverge - [`KT-68322`](https://youtrack.jetbrains.com/issue/KT-68322) Compiler (JS, Wasm): warn about incompatible Kotlin stdlib/compiler pair ##### Fixes - [`KT-78168`](https://youtrack.jetbrains.com/issue/KT-78168) K/N: "IndexOutOfBoundsException: Index 3 out of bounds for length 3" for iOS build with Kotlin 2.2.0-RC2 - [`KT-75766`](https://youtrack.jetbrains.com/issue/KT-75766) PL: Error on building fake override with multiple overridden members with unbound symbols in return type - [`KT-75757`](https://youtrack.jetbrains.com/issue/KT-75757) PL: Error on building fake overrides with unbound symbols in value parameters - [`KT-76094`](https://youtrack.jetbrains.com/issue/KT-76094) Support new callable reference nodes in partial linkage in Kotlin/Wasm - [`KT-78771`](https://youtrack.jetbrains.com/issue/KT-78771) KLIBs: Improve `zipDirAs()` function that is used to produce KLIB (ZIP) archives - [`KT-75980`](https://youtrack.jetbrains.com/issue/KT-75980) \[Klib] Reduce serialized size of IrFileEntries for sparse usage of another source files - [`KT-78349`](https://youtrack.jetbrains.com/issue/KT-78349) \[Tests] Enable Partial Linkage in all tests - [`KT-76827`](https://youtrack.jetbrains.com/issue/KT-76827) KLIB cross-compilation tests: Don't use IR hashes and metadata hashes in test data - [`KT-76266`](https://youtrack.jetbrains.com/issue/KT-76266) Move trigger of :tools:binary-compatibility-validator:check to native/native.tests/klib-ir-inliner - [`KT-76725`](https://youtrack.jetbrains.com/issue/KT-76725) KLIB ABI export in older version: Restore legacy directories - [`KT-76061`](https://youtrack.jetbrains.com/issue/KT-76061) Add option for suppress warning of missing no-existent transitive klib dependencies - [`KT-76471`](https://youtrack.jetbrains.com/issue/KT-76471) Partial linkage: add an attribute if a class is invalid - [`KT-75192`](https://youtrack.jetbrains.com/issue/KT-75192) KLIB reader tends to extract files from the KLIB archive to a temporary directory even when this is not needed ##### Language Design - [`KT-78866`](https://youtrack.jetbrains.com/issue/KT-78866) Warn implicit receiver shadowed by context parameter - [`KT-54363`](https://youtrack.jetbrains.com/issue/KT-54363) Allow using reified types for catch parameters - [`KT-32993`](https://youtrack.jetbrains.com/issue/KT-32993) Contract to specify that a function parameter is always true inside lambda - [`KT-79308`](https://youtrack.jetbrains.com/issue/KT-79308) Ability to actualize empty interfaces as Any - [`KT-8889`](https://youtrack.jetbrains.com/issue/KT-8889) Contracts: if a given function parameter is not null, the result is not null - [`KT-22786`](https://youtrack.jetbrains.com/issue/KT-22786) Returns are not allowed for expression-body functions and are allowed when an inline lambda is added - [`KT-77836`](https://youtrack.jetbrains.com/issue/KT-77836) Support using context parameter of a `@RestrictsSuspension` type as the "restricted coroutine scope" - [`KT-77823`](https://youtrack.jetbrains.com/issue/KT-77823) Context-sensitive resolution doesn't work for subtypes of sealed types - [`KT-75977`](https://youtrack.jetbrains.com/issue/KT-75977) False positive unresolved\_reference when resolving nested member after a type check - [`KT-73557`](https://youtrack.jetbrains.com/issue/KT-73557) Allow refining expect declarations for platform groups ##### Libraries ##### New Features - [`KT-76389`](https://youtrack.jetbrains.com/issue/KT-76389) Provide `update` functions for common atomics - [`KT-78581`](https://youtrack.jetbrains.com/issue/KT-78581) Add the KClass.isInterface property to Kotlin/JS stdlib - [`KT-34132`](https://youtrack.jetbrains.com/issue/KT-34132) Contract for ClosedRange<T>.contains(T?) operator - [`KT-73853`](https://youtrack.jetbrains.com/issue/KT-73853) Provide vararg constructors for Atomic Arrays ##### Fixes - [`KT-71628`](https://youtrack.jetbrains.com/issue/KT-71628) Review deprecations in stdlib for 2.1 - [`KT-76773`](https://youtrack.jetbrains.com/issue/KT-76773) stdlib: contextOf's type argument can be inferred via contextOf's context argument - [`KT-79489`](https://youtrack.jetbrains.com/issue/KT-79489) Generate Stdlib API reference for webMain source set - [`KT-79080`](https://youtrack.jetbrains.com/issue/KT-79080) Annotate WasmImport and WasmExport as experimental API - [`KT-79121`](https://youtrack.jetbrains.com/issue/KT-79121) K/Wasm annotate JS-interop API as experimental - [`KT-78710`](https://youtrack.jetbrains.com/issue/KT-78710) kotlin.wasm and kotlin.wasm.unsafe packages are missing description - [`KT-78709`](https://youtrack.jetbrains.com/issue/KT-78709) Wasm: KClass.qualifiedName KDoc should reflect the behavior on the target - [`KT-78704`](https://youtrack.jetbrains.com/issue/KT-78704) CharSequence.subSequence and String.substring behavior with invalid indices differs between targets - [`KT-78705`](https://youtrack.jetbrains.com/issue/KT-78705) Float.sign and Double.sign behavior for negative zero is not documented - [`KT-74543`](https://youtrack.jetbrains.com/issue/KT-74543) Support for context parameters in kotlinx-metadata - [`KT-78340`](https://youtrack.jetbrains.com/issue/KT-78340) String.startsWith KDoc declares invalid exception condition - [`KT-78242`](https://youtrack.jetbrains.com/issue/KT-78242) Move IrLinkageError to the common non-JVM part of the standard library - [`KT-67819`](https://youtrack.jetbrains.com/issue/KT-67819) Document collection interfaces contracts ##### Native - [`KT-79075`](https://youtrack.jetbrains.com/issue/KT-79075) Stuck on Kotlin\_getSourceInfo\_core\_symbolication - [`KT-76178`](https://youtrack.jetbrains.com/issue/KT-76178) LLVM Update: symbol '\_\_ZnwmSt19\_\_type\_descriptor\_t' missing - [`KT-78959`](https://youtrack.jetbrains.com/issue/KT-78959) Xcode 26: fix GC stress tests - [`KT-78734`](https://youtrack.jetbrains.com/issue/KT-78734) Finish runtime crash dump generation - [`KT-74662`](https://youtrack.jetbrains.com/issue/KT-74662) Consider providing a way to enable stack canaries for Kotlin/Native binaries - [`KT-77378`](https://youtrack.jetbrains.com/issue/KT-77378) \[macos] Loading libraries with non resolved paths runs XProtectService - [`KT-61549`](https://youtrack.jetbrains.com/issue/KT-61549) Kotlin/Native: remove kotlin-native/Interop/JsRuntime - [`KT-76563`](https://youtrack.jetbrains.com/issue/KT-76563) LLVM Update: numerous "was built for newer 'macOS' version" warnings ##### Native. Build Infrastructure - [`KT-77349`](https://youtrack.jetbrains.com/issue/KT-77349) Kotlin/Native: default cache for stdlib is unused ##### Native. C and ObjC Import - [`KT-79571`](https://youtrack.jetbrains.com/issue/KT-79571) Xcode 26 beta 4: CInteropKT39120TestGenerated.testForwardEnum failed - [`KT-71400`](https://youtrack.jetbrains.com/issue/KT-71400) Fix disabled -fmodules testing for stdarg.h ##### Native. ObjC Export ##### New Features - [`KT-77488`](https://youtrack.jetbrains.com/issue/KT-77488) \[ObjCExport] Add explicit ObjCBlock parameter name in objc export - [`KT-76974`](https://youtrack.jetbrains.com/issue/KT-76974) Include conflicting element in objc export warnings - [`KT-76338`](https://youtrack.jetbrains.com/issue/KT-76338) Native, ObjCExport: Replace name mangling of special method families ##### Fixes - [`KT-55648`](https://youtrack.jetbrains.com/issue/KT-55648) Native: produce smaller binaries - [`KT-78447`](https://youtrack.jetbrains.com/issue/KT-78447) \[ObjCExport] Add missing ERROR constructors, align with K1 - [`KT-78034`](https://youtrack.jetbrains.com/issue/KT-78034) ObjCExport: primitive type extension translated as static method - [`KT-77781`](https://youtrack.jetbrains.com/issue/KT-77781) ObjCExport: support `@ObjCName` for function parameters and receiver parameters - [`KT-77592`](https://youtrack.jetbrains.com/issue/KT-77592) KMP plugin uses incorrect Swift name from ObjCName annotation - [`KT-77625`](https://youtrack.jetbrains.com/issue/KT-77625) ObjCExport: ObjCName annotation adds kotlin name swift\_name - [`KT-77484`](https://youtrack.jetbrains.com/issue/KT-77484) KotlinConf app: Invalid identifiers in `ObjCHeader.render` - [`KT-77500`](https://youtrack.jetbrains.com/issue/KT-77500) `IllegalStateException` during generating ObjC header stubs ##### Native. Runtime - [`KT-79152`](https://youtrack.jetbrains.com/issue/KT-79152) Native: unexpected thread state in kotlin::to\_string<KStringConversionMode> ##### Native. Runtime. Memory - [`KT-78925`](https://youtrack.jetbrains.com/issue/KT-78925) Crash SIGABRT on Apple Watch after updating Kotlin to 2.2.0 - [`KT-76851`](https://youtrack.jetbrains.com/issue/KT-76851) Kotlin/Native: GC scheduler MutatorAssists requestAssists and completeEpoch issue - [`KT-63143`](https://youtrack.jetbrains.com/issue/KT-63143) Kotlin/Native: execute Cleaners on the finalizer thread ##### Native. Swift Export - [`KT-79105`](https://youtrack.jetbrains.com/issue/KT-79105) ConcurrentModificationException During Swift Export Caused by Usage of Array - [`KT-79227`](https://youtrack.jetbrains.com/issue/KT-79227) Swift Export: Fix First Release Issues - [`KT-78947`](https://youtrack.jetbrains.com/issue/KT-78947) Implement FUS for Swift export - [`KT-79521`](https://youtrack.jetbrains.com/issue/KT-79521) '\_CoroutineScope' is inaccessible due to 'internal' protection level - [`KT-79181`](https://youtrack.jetbrains.com/issue/KT-79181) Swift Export Fails When Using T: Comparable<T> Generic Constraint in Kotlin Classes - [`KT-77650`](https://youtrack.jetbrains.com/issue/KT-77650) Swift export execution tests fail with caches enabled - [`KT-77634`](https://youtrack.jetbrains.com/issue/KT-77634) K/N: swift export tests started failing after hyper-existentials - [`KT-77290`](https://youtrack.jetbrains.com/issue/KT-77290) Transitive Export on swift export can duplicate declarations ##### Tools. Build Tools API - [`KT-78415`](https://youtrack.jetbrains.com/issue/KT-78415) Add a tool for performance reports analysing ##### Tools. CLI ##### New Features - [`KT-75812`](https://youtrack.jetbrains.com/issue/KT-75812) Basic DSL for compiler arguments representation ##### Fixes - [`KT-78318`](https://youtrack.jetbrains.com/issue/KT-78318) Unresolved reference when compiling kotlin/JS project on fresh master - [`KT-75968`](https://youtrack.jetbrains.com/issue/KT-75968) Set proper lifecycle for all existing compiler arguments - [`KT-77445`](https://youtrack.jetbrains.com/issue/KT-77445) UNRESOLVED\_REFERENCE when importing classes from kotlin-stdlib - [`KT-77030`](https://youtrack.jetbrains.com/issue/KT-77030) Implement setup of HMPP sessions for KLib-based compilers - [`KT-78578`](https://youtrack.jetbrains.com/issue/KT-78578) Support for placeholder (\*) and directory in `-Xdump-perf` - [`KT-78129`](https://youtrack.jetbrains.com/issue/KT-78129) Compiler cannot parse -Xfragment-dependency with a comma in the path - [`KT-76828`](https://youtrack.jetbrains.com/issue/KT-76828) Warning doesn't exist error with -Xwarning-level when the source file has no code - [`KT-76957`](https://youtrack.jetbrains.com/issue/KT-76957) Incorrect error message when severity is set with -Xsuppress-warning and -Xwarning-level for the same diagnostic - [`KT-76829`](https://youtrack.jetbrains.com/issue/KT-76829) UnsupportedOperationException when reenabling a taking place warning with -Xwarning-level - [`KT-76111`](https://youtrack.jetbrains.com/issue/KT-76111) kotlinc warns about org.fusesource.jansi.internal.JansiLoader call to System.load - [`KT-76447`](https://youtrack.jetbrains.com/issue/KT-76447) Remove -Xjps compiler argument ##### Tools. Compiler Plugin API - [`KT-78279`](https://youtrack.jetbrains.com/issue/KT-78279) Make the DiagnosticReporter default way for reporting in IR plugins - [`KT-77157`](https://youtrack.jetbrains.com/issue/KT-77157) Cannot create a symbol pointer for local class generated by FirFunctionCallRefinementExtension ##### Tools. Compiler Plugins ##### New Features - [`KT-78038`](https://youtrack.jetbrains.com/issue/KT-78038) Make jvm-abi-gen compiler plugin output classloader-friendly - [`KT-77339`](https://youtrack.jetbrains.com/issue/KT-77339) Update kotlin dataframe dependency to 1.0.0-dev-6925 ##### Fixes - [`KT-78969`](https://youtrack.jetbrains.com/issue/KT-78969) \[DataFrame] Provide source elements for plugin-generated classes - [`KT-75265`](https://youtrack.jetbrains.com/issue/KT-75265) PowerAssert: the result of invoke is displayed at the same level as value that can be confusing - [`KT-78490`](https://youtrack.jetbrains.com/issue/KT-78490) "AssertionError: SyntheticAccessorLowering should not attempt to modify other files" when calling protected open composable with default argument - [`KT-77626`](https://youtrack.jetbrains.com/issue/KT-77626) K2: AssertionError: FUN LOCAL\_FUNCTION\_FOR\_LAMBDA has no continuation - [`KT-78671`](https://youtrack.jetbrains.com/issue/KT-78671) \[DataFrame] Support type parameter types in DataSchema to fix evaluate expression - [`KT-78439`](https://youtrack.jetbrains.com/issue/KT-78439) DataFrame compiler plugin: Unresolved reference error in REPL - [`KT-75876`](https://youtrack.jetbrains.com/issue/KT-75876) PowerAssert: don't display results for assertion operator - [`KT-75514`](https://youtrack.jetbrains.com/issue/KT-75514) \[JS]\[Native] Add IrPreSerializationLoweringFacade to Atomicfu test runners - [`KT-77719`](https://youtrack.jetbrains.com/issue/KT-77719) Remove suppress INVISIBLE\_REFERENCE from DataFrame plugin - [`KT-77691`](https://youtrack.jetbrains.com/issue/KT-77691) Kotlin DataFrame plugin: IR and FIR anonymous functions have inconsistent receivers - [`KT-77455`](https://youtrack.jetbrains.com/issue/KT-77455) kotlin-dataframe plugin throws NoClassDefFoundError in IDE - [`KT-77437`](https://youtrack.jetbrains.com/issue/KT-77437) Kotlin DataFrame: Add configuration key to disable top level properties generator - [`KT-74366`](https://youtrack.jetbrains.com/issue/KT-74366) Delete kotlin-android-extensions compiler plugin - [`KT-73364`](https://youtrack.jetbrains.com/issue/KT-73364) Migrate atomicfu sources to new IR parameter API ##### Tools. Compiler plugins. Serialization - [`KT-79695`](https://youtrack.jetbrains.com/issue/KT-79695) Serialization does not exclude field-less properties in 2.2.20-Beta2 - [`KT-73365`](https://youtrack.jetbrains.com/issue/KT-73365) Migrate kotlinx-serialization sources to new IR parameter API ##### Tools. Gradle ##### New Features - [`KT-76421`](https://youtrack.jetbrains.com/issue/KT-76421) Stabilize klib cross-compilation on different platforms - [`KT-77107`](https://youtrack.jetbrains.com/issue/KT-77107) Introduce Kotlin ecosystem plugin ##### Fixes - [`KT-80172`](https://youtrack.jetbrains.com/issue/KT-80172) Error message changes depending on the order of applying 'org.jetbrains.kotlin.android' and 'AGP' 9.0+ with built-in Kotlin plugin - [`KT-77546`](https://youtrack.jetbrains.com/issue/KT-77546) Implement basic support for HMPP compilation scheme support in KGP - [`KT-79034`](https://youtrack.jetbrains.com/issue/KT-79034) Automatically disable cross compilation if it's not supported on the host - [`KT-79408`](https://youtrack.jetbrains.com/issue/KT-79408) A lot of errors files are created when compile Kotlin - [`KT-77785`](https://youtrack.jetbrains.com/issue/KT-77785) Add -fmodules option to CocoaPod dependency by default - [`KT-75921`](https://youtrack.jetbrains.com/issue/KT-75921) Make Swift Export available by default - [`KT-63383`](https://youtrack.jetbrains.com/issue/KT-63383) Add compiler performance metrics to Native build reports - [`KT-77023`](https://youtrack.jetbrains.com/issue/KT-77023) Support creating KotlinJvmAndroidCompilation in KotlinBaseApiPlugin - [`KT-74420`](https://youtrack.jetbrains.com/issue/KT-74420) Migrate kotlin-parcelize away from AGP's deprecated Variant API - [`KT-78233`](https://youtrack.jetbrains.com/issue/KT-78233) Add ExperimentalFeatureWarning unique id - [`KT-67992`](https://youtrack.jetbrains.com/issue/KT-67992) Cleanup deprecated code required for KSP1 - [`KT-72341`](https://youtrack.jetbrains.com/issue/KT-72341) Remove 'kotlin-android-extensions' plugin - [`KT-67291`](https://youtrack.jetbrains.com/issue/KT-67291) Enable Project Isolation AND/OR Configuration Cache mode for Gradle Integration tests - [`KT-78325`](https://youtrack.jetbrains.com/issue/KT-78325) Kotlin ecosystem plugin rejects compatible Gradle patch version when DCL is enabled - [`KT-76353`](https://youtrack.jetbrains.com/issue/KT-76353) Handle migration to stable -jvm-default in KGP: replace deprecated option and suppress warnings - [`KT-76797`](https://youtrack.jetbrains.com/issue/KT-76797) KGP: StdlibDependencyManagementKt.configureStdlibVersionAlignment() triggering eager configuration realization - [`KT-77163`](https://youtrack.jetbrains.com/issue/KT-77163) Migrate Swift Export IT to injections - [`KT-76282`](https://youtrack.jetbrains.com/issue/KT-76282) Add missing Android Gradle plugin versions in tests - [`KT-77011`](https://youtrack.jetbrains.com/issue/KT-77011) Update build regression benchmarks for 2.2.0 release - [`KT-76138`](https://youtrack.jetbrains.com/issue/KT-76138) Compile against Gradle API 8.14 - [`KT-76139`](https://youtrack.jetbrains.com/issue/KT-76139) Run integration tests against Gradle 8.14 - [`KT-77035`](https://youtrack.jetbrains.com/issue/KT-77035) A compiler diagnostic isn't reported when its severity is set to warning with Gradle - [`KT-76951`](https://youtrack.jetbrains.com/issue/KT-76951) 'distribution-base' plugin is only applied in Gradle 8.13 - [`KT-73142`](https://youtrack.jetbrains.com/issue/KT-73142) Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder - [`KT-76740`](https://youtrack.jetbrains.com/issue/KT-76740) Use Problems API for warning introduced in KT-75808 - [`KT-65271`](https://youtrack.jetbrains.com/issue/KT-65271) Gradle: "Mutating dependency DefaultExternalModuleDependency after it has been finalized has been deprecated " with gradle 8.6-rc-3 ##### Tools. Gradle. Cocoapods - [`KT-76035`](https://youtrack.jetbrains.com/issue/KT-76035) Allow extra command line arguments in PodBuildTask - [`KT-78387`](https://youtrack.jetbrains.com/issue/KT-78387) Kotlin Cocoapods Gradle Plugin is not compatible with Gradle isolated projects - [`KT-79429`](https://youtrack.jetbrains.com/issue/KT-79429) K/N: Cocoapods: IllegalArgumentException: "cinterop doesn't support having headers in -fmodules mode" with 2.2.20-Beta1 if explicitly not specify false for 'useClangModules' ##### Tools. Gradle. Compiler plugins - [`KT-66728`](https://youtrack.jetbrains.com/issue/KT-66728) Deprecate `kapt.use.k2` property ##### Tools. Gradle. JS ##### New Features - [`KT-75480`](https://youtrack.jetbrains.com/issue/KT-75480) Add shared source set for js and wasmJs target - [`KT-77073`](https://youtrack.jetbrains.com/issue/KT-77073) generateTypeScriptDefinitions() does not add generated .d.ts file to package.json automatically ##### Fixes - [`KT-77319`](https://youtrack.jetbrains.com/issue/KT-77319) KJS / Gradle: generateTypeScriptDefinitions() generates wrong file extension when outputting ES modules - [`KT-79921`](https://youtrack.jetbrains.com/issue/KT-79921) Web Tooling Gradle API does not respect webpack reconfiguration - [`KT-76996`](https://youtrack.jetbrains.com/issue/KT-76996) Wasm: js tasks triggers wasm subtasks - [`KT-79237`](https://youtrack.jetbrains.com/issue/KT-79237) Upgrade NPM dependencies versions - [`KT-79188`](https://youtrack.jetbrains.com/issue/KT-79188) Pre-generated accessors aren't available for webMain / webTest source sets - [`KT-78504`](https://youtrack.jetbrains.com/issue/KT-78504) \[2.2.0-RC3] NPM Tasks in 2.2 RCs produce broken/unusable build cache entries - [`KT-77443`](https://youtrack.jetbrains.com/issue/KT-77443) NPE: "NullPointerException: Cannot invoke org.gradle.api.tasks.TaskProvider.flatMap(org.gradle.api.Transformer)": ExecutableWasm.optimizeTask is accessed before initialization - [`KT-76987`](https://youtrack.jetbrains.com/issue/KT-76987) JS, Wasm: Upgrade NPM dependencies - [`KT-77119`](https://youtrack.jetbrains.com/issue/KT-77119) KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works - [`KT-74735`](https://youtrack.jetbrains.com/issue/KT-74735) KGP uses Gradle internal `CompositeProjectComponentArtifactMetadata` ##### Tools. Gradle. Multiplatform ##### New Features - [`KT-69790`](https://youtrack.jetbrains.com/issue/KT-69790) Report human-readable error when declared dependency doesn't support required target types - [`KT-76446`](https://youtrack.jetbrains.com/issue/KT-76446) Add kotlin-level dependency block to work the same way as commonMain/commonTest dependencies blocks ##### Fixes - [`KT-78297`](https://youtrack.jetbrains.com/issue/KT-78297) FileNotFoundException in generateMetadataFile task if non-packed=false - [`KT-62294`](https://youtrack.jetbrains.com/issue/KT-62294) kotlin-parcelize plugin does not support the new android kotlin multiplatform plugin - [`KT-77404`](https://youtrack.jetbrains.com/issue/KT-77404) The kotlin-stdlib and annotations are missing from commonTest dependencies with 2.2.0-Beta1 - [`KT-79559`](https://youtrack.jetbrains.com/issue/KT-79559) AGP complains about configurations resolved at configuration time due to KMP partially resolved dependencies diagnostic - [`KT-78993`](https://youtrack.jetbrains.com/issue/KT-78993) The value for property '\*' property 'dependencies' is final and cannot be changed any further - [`KT-77843`](https://youtrack.jetbrains.com/issue/KT-77843) KGP fails with Gradle 9 on `ProjectDependency.getDependencyProject()` - [`KT-79315`](https://youtrack.jetbrains.com/issue/KT-79315) Early task materialization with cross-project configuration breaks configuration due to KMP partial resolution checker - [`KT-77466`](https://youtrack.jetbrains.com/issue/KT-77466) KMP - testFixturesApi and similar configurations do not affect jvmTestFixtures source set - [`KT-78433`](https://youtrack.jetbrains.com/issue/KT-78433) Gradle: add tracking of the new KMP compilation scheme to FUS - [`KT-78431`](https://youtrack.jetbrains.com/issue/KT-78431) Gradle: in-process metadata compiler uses deprecated K2MetadataCompiler - [`KT-77414`](https://youtrack.jetbrains.com/issue/KT-77414) KMP dependencies in detached source sets cause IDE resolution to write error logs: "kotlin-project-structure-metadata.json (No such file or directory)" - [`KT-76200`](https://youtrack.jetbrains.com/issue/KT-76200) TestModuleProperties.productionModuleName for JVM module isn't present with 2.1.20-RC ##### Tools. Gradle. Native - [`KT-51301`](https://youtrack.jetbrains.com/issue/KT-51301) Remove ability to use Native non-embeddable compiler jar in Gradle plugin - [`KT-74864`](https://youtrack.jetbrains.com/issue/KT-74864) Enable exporting KDocs by default to ObjC - [`KT-77977`](https://youtrack.jetbrains.com/issue/KT-77977) "Unknown hardware platform: riscv64" on JVM project build - [`KT-78838`](https://youtrack.jetbrains.com/issue/KT-78838) Add default 3G max heap size for the commonizer JVM process - [`KT-68256`](https://youtrack.jetbrains.com/issue/KT-68256) Reduce commonizer max heap size to default 3g and allow users to configure it - [`KT-77067`](https://youtrack.jetbrains.com/issue/KT-77067) Kotlin Gradle plugin with the configuration cache passes all platform libraries to the compiler when compiling a binary for the first time ##### Tools. Gradle. Swift Export - [`KT-79554`](https://youtrack.jetbrains.com/issue/KT-79554) Swift Export status diagnostic is produced even if swift export is not configured - [`KT-78385`](https://youtrack.jetbrains.com/issue/KT-78385) Swift Export is not compatible with Gradle isolated projects - [`KT-79524`](https://youtrack.jetbrains.com/issue/KT-79524) NoSuchMethodError: 'java.lang.String org.gradle.api.artifacts.ProjectDependency.getPath() for swift export with dependency export fro gradle < 8.11 ##### Tools. Incremental Compile - [`KT-60653`](https://youtrack.jetbrains.com/issue/KT-60653) IC does not handle changes in inline functions objects/lambdas correctly - [`KT-78807`](https://youtrack.jetbrains.com/issue/KT-78807) Changing ABI fingerprint on non-ABI changes when lambda passed to inlined function - [`KT-69075`](https://youtrack.jetbrains.com/issue/KT-69075) Incremental compilation: smartcast is impossible on field with `@JvmName` ##### Tools. JPS - [`KT-77347`](https://youtrack.jetbrains.com/issue/KT-77347) Support file-less compatible IC approach - [`KT-78444`](https://youtrack.jetbrains.com/issue/KT-78444) Clean up JPS code base - [`KT-75460`](https://youtrack.jetbrains.com/issue/KT-75460) Adding `@PurelyImplements` annotation to a List does *not* cause incremental recompile of affected files - [`KT-50594`](https://youtrack.jetbrains.com/issue/KT-50594) Fix org.jetbrains.kotlin.arguments.CompilerArgumentsContentProspectorTest ##### Tools. Kapt - [`KT-79138`](https://youtrack.jetbrains.com/issue/KT-79138) K2: KAPT Java Stub Gen: `Unresolved reference` with `@kotlin`.Metadata in Java in 2.2.0 - [`KT-79641`](https://youtrack.jetbrains.com/issue/KT-79641) Kapt: too much information is printed in verbose mode - [`KT-79136`](https://youtrack.jetbrains.com/issue/KT-79136) K2 kapt: unresolved nested class references in annotation arguments are generated without outer class names - [`KT-79133`](https://youtrack.jetbrains.com/issue/KT-79133) K2 kapt: class literal with typealias is not expanded - [`KT-77853`](https://youtrack.jetbrains.com/issue/KT-77853) K2 KAPT: backend internal error: exception during IR fake override builder - [`KT-73322`](https://youtrack.jetbrains.com/issue/KT-73322) Migrate `FirKaptAnalysisHandlerExtension` compilation pipeline to the phased structure ##### Tools. Maven - [`KT-77587`](https://youtrack.jetbrains.com/issue/KT-77587) Maven: Introduce Kotlin daemon support and make it enabled by default - [`KT-63688`](https://youtrack.jetbrains.com/issue/KT-63688) Remove JS-related stuff from kotlin-maven-plugin ##### Tools. Maven. Compiler plugins - [`KT-77511`](https://youtrack.jetbrains.com/issue/KT-77511) Add maven plugin for Kotlin DataFrame plugin ##### Tools. REPL - [`KT-78755`](https://youtrack.jetbrains.com/issue/KT-78755) \[K2 Repl] Redeclaring variables does not work - [`KT-75632`](https://youtrack.jetbrains.com/issue/KT-75632) Contunue deprecation of the REPL built into `kotlinc` - [`KT-77470`](https://youtrack.jetbrains.com/issue/KT-77470) \[K2 Repl] Lazy Properties crash code generation - [`KT-76507`](https://youtrack.jetbrains.com/issue/KT-76507) \[K2 Repl] Delegated properties are not visible in the next snippet - [`KT-76508`](https://youtrack.jetbrains.com/issue/KT-76508) \[K2 Repl] Annotations on property accessors are not resolved - [`KT-75672`](https://youtrack.jetbrains.com/issue/KT-75672) \[K2 Repl] Serialization plugin crashes compiler backend ##### Tools. Scripts - [`KT-78378`](https://youtrack.jetbrains.com/issue/KT-78378) "Explain" feature of the kotlin script fails on hidden variables ##### Tools. Statistics (FUS) - [`KT-79455`](https://youtrack.jetbrains.com/issue/KT-79455) \[FUS] Collect KSP plugin version - [`KT-77755`](https://youtrack.jetbrains.com/issue/KT-77755) \[FUS Pipeline] Fus file format - [`KT-77995`](https://youtrack.jetbrains.com/issue/KT-77995) Do not collect FUS metrics on TeamCity ##### Tools. Wasm - [`KT-76842`](https://youtrack.jetbrains.com/issue/KT-76842) K/Wasm: serve project sources in \*DevRun tasks by default - [`KT-78921`](https://youtrack.jetbrains.com/issue/KT-78921) K/Wasm: don't generate empty yarn.lock file - [`KT-75714`](https://youtrack.jetbrains.com/issue/KT-75714) Wasm: Move tooling NPM dependencies outside user project - [`KT-70013`](https://youtrack.jetbrains.com/issue/KT-70013) .gradle/yarn and .gradle/node are part of Gradle configuration cache - [`KT-76838`](https://youtrack.jetbrains.com/issue/KT-76838) K/Wasm: No possible to set downloadBaseUrl to null for D8 and Binaryen - [`KT-76948`](https://youtrack.jetbrains.com/issue/KT-76948) Wasm: Rename kotlinBinaryenSetup and kotlinD8Setup ### [`v2.2.10`](https://github.com/JetBrains/kotlin/releases/tag/v2.2.10): Kotlin 2.2.10 ##### Changelog ##### Compiler - [`KT-79276`](https://youtrack.jetbrains.com/issue/KT-79276) Dexing fails with "Cannot read field X because <local0> is null" with 2.2.0 - [`KT-79442`](https://youtrack.jetbrains.com/issue/KT-79442) "Multiple annotations of type kotlin.coroutines.jvm.internal.DebugMetadata": 2.2.0-Beta1 generates broken code with JVM default suspend methods in interfaces - [`KT-78815`](https://youtrack.jetbrains.com/issue/KT-78815) `Symbol not found: __ZNSt3__117bad_function_callD1Ev` error on iOS 15.5 simulator in Xcode 16.3 after update to 2.2.0-Beta2 - [`KT-78501`](https://youtrack.jetbrains.com/issue/KT-78501) K2: Missing \[ABSTRACT\_SUPER\_CALL] diagnostics for delegated interface method leads to AssertionError: isCompiledToJvmDefault during IR lowering - [`KT-78479`](https://youtrack.jetbrains.com/issue/KT-78479) IR lowering failed / Unexpected null argument for composable call - [`KT-76477`](https://youtrack.jetbrains.com/issue/KT-76477) Kotlin/Native: fix compiler performance reporting in sources->klib and klibs->binary - [`KT-78736`](https://youtrack.jetbrains.com/issue/KT-78736) Missing \[NOT\_YET\_SUPPORTED\_IN\_INLINE] diagnostics because of incorrect context update - [`KT-77685`](https://youtrack.jetbrains.com/issue/KT-77685) "IllegalArgumentException: Sequence contains more than one matching element" - [`KT-76365`](https://youtrack.jetbrains.com/issue/KT-76365) K2: Missing ABSTRACT\_SUPER\_CALL - [`KT-78352`](https://youtrack.jetbrains.com/issue/KT-78352) False-positive IDENTITY\_SENSITIVE\_OPERATIONS\_WITH\_VALUE\_TYPE when comparing with equality operator (==) ##### Compose compiler - [`KT-78479`](https://youtrack.jetbrains.com/issue/KT-78479) Ensure that default transform affects functions entered through a call - [`KT-78490`](https://youtrack.jetbrains.com/issue/KT-78490) Fix visibility for default wrappers of protected methods - [`b/408492167`](https://issuetracker.google.com/issues/408492167) Emit parameter names in Compose source information ##### JavaScript - [`KT-79050`](https://youtrack.jetbrains.com/issue/KT-79050) KJS / IC: "Unexpected body of primary constructor for processing irClass" - [`KT-79089`](https://youtrack.jetbrains.com/issue/KT-79089) KJS: Could not load reporter / Cannot find module 'mocha' when running jsNode tests ##### Native - [`KT-79075`](https://youtrack.jetbrains.com/issue/KT-79075) Stuck on Kotlin\_getSourceInfo\_core\_symbolication - [`KT-76178`](https://youtrack.jetbrains.com/issue/KT-76178) LLVM Update: symbol '\_\_ZnwmSt19\_\_type\_descriptor\_t' missing ##### Native. Runtime. Memory - [`KT-78925`](https://youtrack.jetbrains.com/issue/KT-78925) Crash SIGABRT on Apple Watch after updating Kotlin to 2.2.0 ##### Tools. CLI - [`KT-77445`](https://youtrack.jetbrains.com/issue/KT-77445) UNRESOLVED\_REFERENCE when importing classes from kotlin-stdlib - [`KT-78263`](https://youtrack.jetbrains.com/issue/KT-78263) java.lang.NoClassDefFoundError: Could not initialize class com.intellij.psi.impl.PsiSubstitutorImpl - [`KT-78318`](https://youtrack.jetbrains.com/issue/KT-78318) Unresolved reference when compiling kotlin/JS project on fresh master ##### Tools. Compiler Plugins - [`KT-78490`](https://youtrack.jetbrains.com/issue/KT-78490) "AssertionError: SyntheticAccessorLowering should not attempt to modify other files" when calling protected open composable with default argument - [`KT-78038`](https://youtrack.jetbrains.com/issue/KT-78038) Make jvm-abi-gen compiler plugin output classloader-friendly ##### Tools. Gradle - [`KT-77023`](https://youtrack.jetbrains.com/issue/KT-77023) Support creating KotlinJvmAndroidCompilation in KotlinBaseApiPlugin ##### Tools. Gradle. JS - [`KT-78504`](https://youtrack.jetbrains.com/issue/KT-78504) \[2.2.0-RC3] NPM Tasks in 2.2 RCs produce broken/unusable build cache entries ##### Tools. Gradle. Multiplatform - [`KT-77466`](https://youtrack.jetbrains.com/issue/KT-77466) KMP - testFixturesApi and similar configurations do not affect jvmTestFixtures source set - [`KT-68646`](https://youtrack.jetbrains.com/issue/KT-68646) Compose extension's metrics/reports dir should use subdirs based on target ##### Tools. Gradle. Native - [`KT-77977`](https://youtrack.jetbrains.com/issue/KT-77977) "Unknown hardware platform: riscv64" on JVM project build ##### Tools. Incremental Compile - [`KT-78807`](https://youtrack.jetbrains.com/issue/KT-78807) Changing ABI fingerprint on non-ABI changes when lambda passed to inlined function ##### Tools. Kapt - [`KT-77853`](https://youtrack.jetbrains.com/issue/KT-77853) K2 KAPT: backend internal error: exception during IR fake override builder - [`KT-79138`](https://youtrack.jetbrains.com/issue/KT-79138) K2: KAPT Java Stub Gen: `Unresolved reference` with `@kotlin`.Metadata in Java in 2.2.0 ### [`v2.2.0`](https://github.com/JetBrains/kotlin/releases/tag/v2.2.0): Kotlin 2.2.0 ##### Changelog ##### Analysis API - [`KT-73337`](https://youtrack.jetbrains.com/issue/KT-73337) Migrate analysis sources to new IR parameter API - [`KT-75880`](https://youtrack.jetbrains.com/issue/KT-75880) K2 Mode: Typealias reference resolves to the underlying class in KMP project - [`KT-74246`](https://youtrack.jetbrains.com/issue/KT-74246) KaVisibilityChecker.isVisible is inefficient with multiple calls on the same use-site - [`KT-57733`](https://youtrack.jetbrains.com/issue/KT-57733) Analysis API: Use optimized `ModuleWithDependenciesScope`s in combined symbol providers - [`KT-69535`](https://youtrack.jetbrains.com/issue/KT-69535) Redesign 'containingSymbol' - [`KT-69950`](https://youtrack.jetbrains.com/issue/KT-69950) Analysis API: Introduce `isSubtypeOf(ClassId)` - [`KT-68393`](https://youtrack.jetbrains.com/issue/KT-68393) Analysis API: Rename `KaClassLikeSymbol. classIdIfNonLocal` to `classId` - [`KT-62924`](https://youtrack.jetbrains.com/issue/KT-62924) Analysis API: rename KtCallableSymbol.callableIdIfNonLocal -> callableId ##### Analysis API. Code Compilation - [`KT-75502`](https://youtrack.jetbrains.com/issue/KT-75502) K2: IDEA hangs when evaluating inside kotlin-stdlib modules in the Kotlin project - [`KT-73077`](https://youtrack.jetbrains.com/issue/KT-73077) Evaluation of inline functions is broken inside Kotlin project and Amper module in Idea sources - [`KT-73936`](https://youtrack.jetbrains.com/issue/KT-73936) K2: CyclicInlineDependencyException: Inline functions have a cyclic dependency in evaluator - [`KT-74582`](https://youtrack.jetbrains.com/issue/KT-74582) InterpreterMethodNotFoundError when trying to evaluate simple expressions after recent fixes - [`KT-74524`](https://youtrack.jetbrains.com/issue/KT-74524) Compilation exception with incorrect JvmName annotation arguments - [`KT-74443`](https://youtrack.jetbrains.com/issue/KT-74443) Compilation peer collector ignores inline property accessors ##### Analysis API. FIR ##### New Features - [`KT-73493`](https://youtrack.jetbrains.com/issue/KT-73493) Support context parameters ##### Performance Improvements - [`KT-75790`](https://youtrack.jetbrains.com/issue/KT-75790) Experiment with increasing DEFAULT\_LOCKING\_INTERVAL time - [`KT-72159`](https://youtrack.jetbrains.com/issue/KT-72159) LLFirCompilerRequiredAnnotationsTargetResolver: consider rewriting it to use honest jumping locks ##### Fixes - [`KT-76331`](https://youtrack.jetbrains.com/issue/KT-76331) Cleanup FileStructureElement for classes - [`KT-73117`](https://youtrack.jetbrains.com/issue/KT-73117) K2 AA: Exception "Setter is not found" when val has a setter without body - [`KT-76540`](https://youtrack.jetbrains.com/issue/KT-76540) K2: Missing library dependency on Android SDK from androidx.activity-1.8.2 causes LiveEdit failures - [`KT-73266`](https://youtrack.jetbrains.com/issue/KT-73266) K2. "Declaration should have non-local container" with unclosed annotation on top-level function - [`KT-76432`](https://youtrack.jetbrains.com/issue/KT-76432) JavaClassUseSiteMemberScope: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl - [`KT-76217`](https://youtrack.jetbrains.com/issue/KT-76217) K2 AA: "No fir element was found for KtParameter" with multiple context parameter lists - [`KT-74740`](https://youtrack.jetbrains.com/issue/KT-74740) Highlighting is broken after the built-in serialization refactoring - [`KT-76366`](https://youtrack.jetbrains.com/issue/KT-76366) ContextCollector: annotations on class members don't have the class as implicit receiver - [`KT-76352`](https://youtrack.jetbrains.com/issue/KT-76352) ContextCollector: wrong class annotation context in BODY mode - [`KT-76341`](https://youtrack.jetbrains.com/issue/KT-76341) ContextCollector: support dangling modifiers - [`KT-76332`](https://youtrack.jetbrains.com/issue/KT-76332) "Declaration should have non-local container" for declaration inside file annotation - [`KT-76115`](https://youtrack.jetbrains.com/issue/KT-76115) Disable `FirElementBuilder#getFirForElementInsideAnnotations` optimization for files, classes and scripts - [`KT-76347`](https://youtrack.jetbrains.com/issue/KT-76347) ContextCollector: avoid resolution for enum entry annotations - [`KT-76272`](https://youtrack.jetbrains.com/issue/KT-76272) Cleanup AbstractFileStructureTest - [`KT-75542`](https://youtrack.jetbrains.com/issue/KT-75542) K2 AA: "FirDeclaration was not found for class KtNamedFunction, fir is class FirErrorExpressionImpl" for unclosed annotation on member function - [`KT-73719`](https://youtrack.jetbrains.com/issue/KT-73719) K2. "FirDeclaration was not found for class KtDestructuringDeclaration, fir is class FirBlockImpl" on incorrect chain call - [`KT-72908`](https://youtrack.jetbrains.com/issue/KT-72908) K2 Analysis API: "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtFunctionLiteral" with non-local destructuring declaration without initializer before `init` block - [`KT-75532`](https://youtrack.jetbrains.com/issue/KT-75532) ContextCollector: scope for an anonymous function type parameter contains regular parameters - [`KT-74508`](https://youtrack.jetbrains.com/issue/KT-74508) `FirElementBuilder#findElementInside` should reuse logic from `KtToFirMapping#getFir` - [`KT-73066`](https://youtrack.jetbrains.com/issue/KT-73066) \[LL] Enable low-level-api-fir-native even with the disabled native part - [`KT-75132`](https://youtrack.jetbrains.com/issue/KT-75132) Investigate failures of sandbox diagnostic test - [`KT-75130`](https://youtrack.jetbrains.com/issue/KT-75130) Set up LL FIR tests for sandbox test data - [`KT-73386`](https://youtrack.jetbrains.com/issue/KT-73386) Standardize LL FIR test for compiler test data - [`KT-75125`](https://youtrack.jetbrains.com/issue/KT-75125) ISE “Value classes cannot have 0 fields” on instantiating inline class without fields - [`KT-75179`](https://youtrack.jetbrains.com/issue/KT-75179) ContextCollector: support error properties - [`KT-74632`](https://youtrack.jetbrains.com/issue/KT-74632) K2: ISE FirLazyDelegatedConstructorCall should be calculated before accessing - [`KT-74818`](https://youtrack.jetbrains.com/issue/KT-74818) K2 AA: "FirDeclaration was not found for class KtTypeParameter, fir is null" with TYPE\_PARAMETERS\_NOT\_ALLOWED on anonymous function - [`KT-73183`](https://youtrack.jetbrains.com/issue/KT-73183) Support context parameters in ContextCollectorVisitor - [`KT-60350`](https://youtrack.jetbrains.com/issue/KT-60350) K2 IDE: top level destructuring RHS should be resolvable - [`KT-74794`](https://youtrack.jetbrains.com/issue/KT-74794) K2: FirLazyExpression should be calculated before accessing with context parameter and implicit return type - [`KT-72938`](https://youtrack.jetbrains.com/issue/KT-72938) Get rid of KaFirAnnotationListForReceiverParameter - [`KT-73727`](https://youtrack.jetbrains.com/issue/KT-73727) Exception in implicit type resolution ##### Analysis API. Infrastructure - [`KT-74917`](https://youtrack.jetbrains.com/issue/KT-74917) \[Analysis API, Test Framework] Introduce a way to acquire `PsiFile` for a given `TestFile` in `KtTestModule` ##### Analysis API. Light Classes - [`KT-73405`](https://youtrack.jetbrains.com/issue/KT-73405) Get rid of KtElement#{symbolPointer, symbolPointerOfType} API usages - [`KT-75391`](https://youtrack.jetbrains.com/issue/KT-75391) Reduce the amount of psi-based logic in light classes - [`KT-70001`](https://youtrack.jetbrains.com/issue/KT-70001) SLC adds `@Override` with zero text offset on `override` member - [`KT-75755`](https://youtrack.jetbrains.com/issue/KT-75755) K2. False positive red code on vararg parameters in Kotlin class with `@JvmOverloads` when called from Java - [`KT-75397`](https://youtrack.jetbrains.com/issue/KT-75397) Constructors and functions with non-last vararg parameters are treated as varargs - [`KT-74868`](https://youtrack.jetbrains.com/issue/KT-74868) Support context parameters - [`KT-74733`](https://youtrack.jetbrains.com/issue/KT-74733) SymbolPsiLiteral.text == value for Java constant - [`KT-74620`](https://youtrack.jetbrains.com/issue/KT-74620) Delegated functions with value classes are present in light classes - [`KT-74595`](https://youtrack.jetbrains.com/issue/KT-74595) Static functions with value classes are present in light classes - [`KT-74284`](https://youtrack.jetbrains.com/issue/KT-74284) Synthetic data class methods using value class types present in LC ##### Analysis API. Providers and Caches ##### Performance Improvements - [`KT-62115`](https://youtrack.jetbrains.com/issue/KT-62115) Analysis API: Package providers are not cached per search scope - [`KT-74463`](https://youtrack.jetbrains.com/issue/KT-74463) Analysis API: `LLNativeForwardDeclarationsSymbolProvider` queries its cache even when the `ClassId` cannot represent a native forward declaration ##### Fixes - [`KT-74541`](https://youtrack.jetbrains.com/issue/KT-74541) Analysis API: Include files generated by resolve extensions in `KaModule` content scopes - [`KT-64236`](https://youtrack.jetbrains.com/issue/KT-64236) Analysis API: Introduce a separate module for fallback dependencies of library source modules - [`KT-74090`](https://youtrack.jetbrains.com/issue/KT-74090) Analysis API: Support dumb mode (restricted analysis) - [`KT-63780`](https://youtrack.jetbrains.com/issue/KT-63780) Analysis API: Invalidate resolvable library sessions when binary library modules are modified - [`KT-72388`](https://youtrack.jetbrains.com/issue/KT-72388) KaFirStopWorldCacheCleaner: Control-flow exceptions - [`KT-74943`](https://youtrack.jetbrains.com/issue/KT-74943) Analysis API: Replace `KotlinGlobalModificationService` with simpler global modification event publishing and listener-based modification trackers - [`KT-70518`](https://youtrack.jetbrains.com/issue/KT-70518) K2: Analysis API: Access indices outside of `ConcurrentMap` computation in symbol providers - [`KT-74302`](https://youtrack.jetbrains.com/issue/KT-74302) Analysis API: `LLFirProvider` should disregard self-declarations in `getFirClassifierBy*` - [`KT-67868`](https://youtrack.jetbrains.com/issue/KT-67868) Analysis API: Improve the architecture of `LLFirKotlinSymbolProvider`s ##### Analysis API. Standalone - [`KT-72810`](https://youtrack.jetbrains.com/issue/KT-72810) withMultiplatformLightClassSupport is inconvenient in Standalone ##### Analysis API. Stubs and Decompilation - [`KT-71787`](https://youtrack.jetbrains.com/issue/KT-71787) `PsiRawFirBuilder.Visitor#visitStringTemplateExpression` forces AST loading - [`KT-68484`](https://youtrack.jetbrains.com/issue/KT-68484) K2 IDE, Analysis API: "We should be able to find a symbol for function" for getting KaType of `Iterable<T>.map(transform: (T) -> R)` parameter in J2K ##### Analysis API. Surface ##### New Features - [`KT-74475`](https://youtrack.jetbrains.com/issue/KT-74475) Add `isInline` for `KaPropertySymbol` - [`KT-75063`](https://youtrack.jetbrains.com/issue/KT-75063) KaScopeContext: support context parameters ##### Performance Improvements - [`KT-73669`](https://youtrack.jetbrains.com/issue/KT-73669) Support psi-based symbol pointer for implicit primary constructors - [`KT-76008`](https://youtrack.jetbrains.com/issue/KT-76008) Provide PSI-based implementation for `KaFirNamedClassSymbol#companionObject` - [`KT-70165`](https://youtrack.jetbrains.com/issue/KT-70165) Introduce PSI-based `KaSymbol`s for K2 ##### Fixes - [`KT-72730`](https://youtrack.jetbrains.com/issue/KT-72730) K2: "Unexpected owner function: KtNamedFunction" on vararg val parameter in function - [`KT-75123`](https://youtrack.jetbrains.com/issue/KT-75123) K2. KaFirNamedFunctionSymbol should contain a receiver - [`KT-75894`](https://youtrack.jetbrains.com/issue/KT-75894) Cannot build KaFirJavaFieldSymbol for FirFieldImpl - [`KT-75115`](https://youtrack.jetbrains.com/issue/KT-75115) Analysis API: The `JavaModuleResolver` compiler class is leaked to Analysis API platform implementations - [`KT-76018`](https://youtrack.jetbrains.com/issue/KT-76018) K2: Stop the wold leads to deadlock/freeze - [`KT-76011`](https://youtrack.jetbrains.com/issue/KT-76011) `KaFirNamedClassSymbol#companionObject` doesn't provide generated objects generated by compiled plugins - [`KT-72482`](https://youtrack.jetbrains.com/issue/KT-72482) "KotlinIllegalArgumentExceptionWithAttachments: Expected all candidates to have same callableId but some of them but was different" on trying to add the import - [`KT-75586`](https://youtrack.jetbrains.com/issue/KT-75586) `KaFirPropertyGetterSymbol#isInline` and `KaFirPropertySetterSymbol#isInline` is incorrect for accessors with explicit modifier - [`KT-58572`](https://youtrack.jetbrains.com/issue/KT-58572) Analysis API: Enforcing STATUS resolve in 'KtFirNamedClassOrObjectSymbol.visibility' may cause lazy resolve contract violation - [`KT-75574`](https://youtrack.jetbrains.com/issue/KT-75574) Recognize injected code fragment copies - [`KT-75573`](https://youtrack.jetbrains.com/issue/KT-75573) Recognize physical file copies as dangling files - [`KT-74801`](https://youtrack.jetbrains.com/issue/KT-74801) Analysis API: Publish/subscribe to modification events with a single message bus topic - [`KT-73290`](https://youtrack.jetbrains.com/issue/KT-73290) Analysis API: Improve the architecture of content scopes and resolution scopes - [`KT-68901`](https://youtrack.jetbrains.com/issue/KT-68901) Constructor delegation call receiver missing in fir implementation - [`KT-72639`](https://youtrack.jetbrains.com/issue/KT-72639) Support context parameter API - [`KT-73112`](https://youtrack.jetbrains.com/issue/KT-73112) AA: FirExpression.toKtReceiverValue should handle context receivers properly - [`KT-74905`](https://youtrack.jetbrains.com/issue/KT-74905) Cannot find context receiver in FIR declaration - [`KT-74563`](https://youtrack.jetbrains.com/issue/KT-74563) `createPointer` is overloaded not for all implementations - [`KT-73722`](https://youtrack.jetbrains.com/issue/KT-73722) Analysis API: Automatically check that the API surface is fully documented - [`KT-65065`](https://youtrack.jetbrains.com/issue/KT-65065) Provide `KtTypeReference#getShortTypeText()` ##### Backend. Native. Debug - [`KT-75991`](https://youtrack.jetbrains.com/issue/KT-75991) Xcode 16.3: Fix lldb stepping test over an inline function ##### Backend. Wasm ##### New Features - [`KT-59032`](https://youtrack.jetbrains.com/issue/KT-59032) Support instantiation of annotation classes on WASM ##### Fixes - [`KT-77622`](https://youtrack.jetbrains.com/issue/KT-77622) K/Wasm: investigate CMP crash on mobile Safari - [`KT-76747`](https://youtrack.jetbrains.com/issue/KT-76747) \[Wasm] Wasm name section absent for wasm structs - [`KT-76701`](https://youtrack.jetbrains.com/issue/KT-76701) K/Wasm: custom formatters are not loaded when a project is built with incremental compilation - [`KT-66081`](https://youtrack.jetbrains.com/issue/KT-66081) K/WASM: `0/0`, `5/0` and `5%0`throw not ArithmeticException, but RuntimeError - [`KT-76287`](https://youtrack.jetbrains.com/issue/KT-76287) \[Wasm] Enable stdlib and kotlin.test tests after compiler bootstrap - [`KT-75871`](https://youtrack.jetbrains.com/issue/KT-75871) \[Wasm] Implement new RTTI approach - [`KT-75872`](https://youtrack.jetbrains.com/issue/KT-75872) Wasm / IC: IllegalStateException: IC internal error: can not find library - [`KT-74441`](https://youtrack.jetbrains.com/issue/KT-74441) K/Wasm: incorrect 1e-45.toString() - [`KT-59118`](https://youtrack.jetbrains.com/issue/KT-59118) WASM: floating point toString inconsistencies - [`KT-68948`](https://youtrack.jetbrains.com/issue/KT-68948) Wasm: float from variable is printed with many decimal points - [`KT-69107`](https://youtrack.jetbrains.com/issue/KT-69107) \[wasm] Seemingly incorrect rounding - [`KT-73362`](https://youtrack.jetbrains.com/issue/KT-73362) Migrate K/Wasm sources to new IR parameter API ##### Compiler ##### New Features - [`KT-70722`](https://youtrack.jetbrains.com/issue/KT-70722) Implement better Kotlin warnings for value classes and JEP 390 (Warnings for Value-Based Classes) - [`KT-71768`](https://youtrack.jetbrains.com/issue/KT-71768) Enable -Xjvm-default=all-compatibility by default to generate JVM default interface methods - [`KT-54205`](https://youtrack.jetbrains.com/issue/KT-54205) Support jakarta Nullability annotations - [`KT-57919`](https://youtrack.jetbrains.com/issue/KT-57919) Store all annotations in Kotlin metadata on JVM under a flag - [`KT-73255`](https://youtrack.jetbrains.com/issue/KT-73255) Change defaulting rule for annotations - [`KT-74382`](https://youtrack.jetbrains.com/issue/KT-74382) Annotating Java record components for `@JvmRecord` data class - [`KT-74811`](https://youtrack.jetbrains.com/issue/KT-74811) Prohibit usages of `@MustUseValue` / `@IgnorableValue` if RV checker is not enabled - [`KT-74806`](https://youtrack.jetbrains.com/issue/KT-74806) Implement feature flag for improved unused return value checker - [`KT-74809`](https://youtrack.jetbrains.com/issue/KT-74809) Support unnamed local variables - [`KT-73508`](https://youtrack.jetbrains.com/issue/KT-73508) Add a warning diagnostic for using kotlin.concurrent.AtomicRef<Int> - [`KT-72941`](https://youtrack.jetbrains.com/issue/KT-72941) ANNOTATIONS\_ON\_BLOCK\_LEVEL\_EXPRESSION\_ON\_THE\_SAME\_LINE missing in K2 - [`KT-74497`](https://youtrack.jetbrains.com/issue/KT-74497) Warn about incompatible Kotlin and Java targets in annotations - [`KT-75061`](https://youtrack.jetbrains.com/issue/KT-75061) Support context-sensitive resolution in type position - [`KT-75315`](https://youtrack.jetbrains.com/issue/KT-75315) Support context-sensitive resolution in the call-argument position - [`KT-75316`](https://youtrack.jetbrains.com/issue/KT-75316) Support context-sensitive resolution for expression-position with expected type - [`KT-76088`](https://youtrack.jetbrains.com/issue/KT-76088) Support context-sensitive resolution for annotation arguments - [`KT-74049`](https://youtrack.jetbrains.com/issue/KT-74049) Introduce special override rule to allow overriding T! with T & Any ##### Performance Improvements - [`KT-76395`](https://youtrack.jetbrains.com/issue/KT-76395) Performance degradation on 28.03.2025 - [`KT-76422`](https://youtrack.jetbrains.com/issue/KT-76422) FirJavaFacade#createFirJavaClass: do not compute super type references right away - [`KT-75957`](https://youtrack.jetbrains.com/issue/KT-75957) K2: PsiRawFirBuilder.Visitor#toFirExpression forces AST loading via getSpreadElement - [`KT-74824`](https://youtrack.jetbrains.com/issue/KT-74824) Exponential performance caused by nested flexible types - [`KT-62855`](https://youtrack.jetbrains.com/issue/KT-62855) K2: extra allocation for SAM conversion compared to K1 - [`KT-74977`](https://youtrack.jetbrains.com/issue/KT-74977) K/N: support stack array for Array(size) call - [`KT-74369`](https://youtrack.jetbrains.com/issue/KT-74369) Exponential compiler memory usage in specific situations with type inference ##### Fixes - [`KT-76606`](https://youtrack.jetbrains.com/issue/KT-76606) Enable 'Indy: Allow lambdas with annotations' by default - [`KT-77301`](https://youtrack.jetbrains.com/issue/KT-77301) False positive Context Parameter resolution when using DslMarker - [`KT-74389`](https://youtrack.jetbrains.com/issue/KT-74389) K2: False positive NON\_EXPORTABLE\_TYPE on non-Unit `Promise<...>` in K/JS - [`KT-77219`](https://youtrack.jetbrains.com/issue/KT-77219) "`@Composable` annotation is not applicable" on vararg `@Composable` () -> Unit in Kotlin 2.2.0 - [`KT-76357`](https://youtrack.jetbrains.com/issue/KT-76357) K2: a nested class annotation observes member declarations of the outer class - [`KT-72734`](https://youtrack.jetbrains.com/issue/KT-72734) Support new callable reference nodes in Kotlin Native - [`KT-74421`](https://youtrack.jetbrains.com/issue/KT-74421) K2: Missing "val cannot be reassigned" when trying to assign a value to parent's "val" - [`KT-63720`](https://youtrack.jetbrains.com/issue/KT-63720) Coroutine debugger: do not optimise out local variables - [`KT-74470`](https://youtrack.jetbrains.com/issue/KT-74470) NSME on calling in runtime internal constructor of value class with default arg from tests - [`KT-77640`](https://youtrack.jetbrains.com/issue/KT-77640) Context parameters: using 'contextOf()' function leads to \[NO\_CONTEXT\_ARGUMENT] - [`KT-73909`](https://youtrack.jetbrains.com/issue/KT-73909) Add an inspection discouraging usage of kotlin.concurrent Native atomics in favor of the new atomics - [`KT-76583`](https://youtrack.jetbrains.com/issue/KT-76583) CCE: suspend lambda attempts to unbox value class parameter twice after lambda suspended - [`KT-76663`](https://youtrack.jetbrains.com/issue/KT-76663) KJS: KotlinNothingValueException caused by expression return since 2.1.20 - [`KT-75457`](https://youtrack.jetbrains.com/issue/KT-75457) Native: cache machinery uses stdlib cache with default runtime options even if custom runtime options are supplied when partial linkage is disabled - [`KT-76615`](https://youtrack.jetbrains.com/issue/KT-76615) K2: "IllegalArgumentException: Inline class types should have the same representation: Lkotlin/UByte; != B" for mixed Java/Kotlin code - [`KT-77220`](https://youtrack.jetbrains.com/issue/KT-77220) Annotation with EXPRESSION is not allowed on lambdas in Kotlin 2.2.0 - [`KT-76381`](https://youtrack.jetbrains.com/issue/KT-76381) K2: Expected expression 'FirPropertyAccessExpressionImpl' to be resolved - [`KT-74739`](https://youtrack.jetbrains.com/issue/KT-74739) Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION\_REFERENCE" - [`KT-74325`](https://youtrack.jetbrains.com/issue/KT-74325) Explicit API mode does not enforce explicit return types for extension properties - [`KT-77259`](https://youtrack.jetbrains.com/issue/KT-77259) Confusing message for `ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD` - [`KT-73771`](https://youtrack.jetbrains.com/issue/KT-73771) K2: Infinite compilation caused by buildList without type - [`KT-61258`](https://youtrack.jetbrains.com/issue/KT-61258) Kotlin/Native: CLASS CLASS name:<no name provided> modality:FINAL visibility:local superTypes:\[<root>.Base] - [`KT-75317`](https://youtrack.jetbrains.com/issue/KT-75317) Kotlin/Native: segfault in kotlin::gc::Mark<kotlin::gc::mark::ConcurrentMark::MarkTraits> - [`KT-75965`](https://youtrack.jetbrains.com/issue/KT-75965) The iOS app did not run successfully in Release mode - [`KT-77397`](https://youtrack.jetbrains.com/issue/KT-77397) Report UNSUPPORTED\_CONTEXTUAL\_DECLARATION\_CALL when calling declaration with contextual function type in signature - [`KT-77137`](https://youtrack.jetbrains.com/issue/KT-77137) K2: Controversial behavior allows resolving annotation arguments on a companion inside it - [`KT-77150`](https://youtrack.jetbrains.com/issue/KT-77150) Native: compilation fails with an assertion error - [`KT-51960`](https://youtrack.jetbrains.com/issue/KT-51960) ClassCastException: Inline function with both context and extension receiver produces this when invoked - [`KT-73611`](https://youtrack.jetbrains.com/issue/KT-73611) Remove -Xextended-compiler-checks in favor of a deprecation cycle - [`KT-74649`](https://youtrack.jetbrains.com/issue/KT-74649) Deprecate language versions 1.8 and 1.9 - [`KT-77283`](https://youtrack.jetbrains.com/issue/KT-77283) Binary compatibility of FirDeclarationChecker - [`KT-73445`](https://youtrack.jetbrains.com/issue/KT-73445) K2: do not report "cannot infer visibility" when inheriting multiple implementations - [`KT-75945`](https://youtrack.jetbrains.com/issue/KT-75945) Indy: Allow lambdas with annotations - [`KT-76898`](https://youtrack.jetbrains.com/issue/KT-76898) K2: ClassCastException when data class shadows supertype's `componentX` method with wrong type - [`KT-75992`](https://youtrack.jetbrains.com/issue/KT-75992) Xcode 16.3: stacktraces on simulators are not symbolicated - [`KT-76805`](https://youtrack.jetbrains.com/issue/KT-76805) Wrong NPE occurs when assigning synthetic properties with platform types in Kotlin 2.1.20 - [`KT-76171`](https://youtrack.jetbrains.com/issue/KT-76171) "KotlinIllegalArgumentExceptionWithAttachments: Expected expression 'FirSingleExpressionBlock' to be resolved" - [`KT-77078`](https://youtrack.jetbrains.com/issue/KT-77078) K2: anonymous object is wrongly allowed to implement interfaces by unsafe Delegation - [`KT-72722`](https://youtrack.jetbrains.com/issue/KT-72722) Treat 'copy' calls of a data class as explicit constructor usages - [`KT-77001`](https://youtrack.jetbrains.com/issue/KT-77001) Leave ForbidParenthesizedLhsInAssignments as a warning - [`KT-75828`](https://youtrack.jetbrains.com/issue/KT-75828) Store backing field/delegate annotations and extension receiver annotations in metadata - [`KT-58369`](https://youtrack.jetbrains.com/issue/KT-58369) K2: enable DFA warnings - [`KT-51258`](https://youtrack.jetbrains.com/issue/KT-51258) Annotations should go before context receivers - [`KT-76253`](https://youtrack.jetbrains.com/issue/KT-76253) K2 Compiler: Less precise diagnostic COMPONENT\_FUNCTION\_AMBIGUITY for flexible type - [`KT-59526`](https://youtrack.jetbrains.com/issue/KT-59526) Store annotation default values in metadata on JVM - [`KT-63850`](https://youtrack.jetbrains.com/issue/KT-63850) K2: setter with an annotated parameter has `isNotDefault == false` flag in metadata - [`KT-75712`](https://youtrack.jetbrains.com/issue/KT-75712) -Wextra: false positive UNUSED\_LAMBDA\_EXPRESSION on functional type variable assignment with inferred type - [`KT-4779`](https://youtrack.jetbrains.com/issue/KT-4779) Generate default methods for implementations in interfaces - [`KT-69624`](https://youtrack.jetbrains.com/issue/KT-69624) Debugger: Missing local variable in Variables view (inline function) - [`KT-75518`](https://youtrack.jetbrains.com/issue/KT-75518) NO\_CONTEXT\_ARGUMENT should report the name of the context parameter in addition to the type - [`KT-76199`](https://youtrack.jetbrains.com/issue/KT-76199) Introduce -Xcontext-sensitive-resolution compiler flag - [`KT-75553`](https://youtrack.jetbrains.com/issue/KT-75553) `MISSING_DEPENDENCY_SUPERCLASS` and `MISSING_DEPENDENCY_SUPERCLASS_WARNING` is reported at the same time on the same element - [`KT-76159`](https://youtrack.jetbrains.com/issue/KT-76159) Obsolete error "'`@JvmDefaultWithCompatibility`' annotation is only allowed on interfaces" should be removed - [`KT-76660`](https://youtrack.jetbrains.com/issue/KT-76660) False negative RETURN\_NOT\_ALLOWED in lambda in default argument leads to NoClassDefFoundError: $$$$$NON\_LOCAL\_RETURN$$$$$ - [`KT-76301`](https://youtrack.jetbrains.com/issue/KT-76301) Fail to infer types after syntactical change - [`KT-74999`](https://youtrack.jetbrains.com/issue/KT-74999) K2: KotlinNothingValueException within Extension Function - [`KT-76675`](https://youtrack.jetbrains.com/issue/KT-76675) KIAEWA exception at KaFirDataFlowProvider with non-local return from nested inline call - [`KT-75756`](https://youtrack.jetbrains.com/issue/KT-75756) Backend Internal error: Exception during IR lowering when trying to access variable from providedProperties in class within kotlin custom script - [`KT-76345`](https://youtrack.jetbrains.com/issue/KT-76345) Enhance variable fixation - [`KT-76578`](https://youtrack.jetbrains.com/issue/KT-76578) \[FIR, K1/K2 Regression] `lateinit` is allowed on loop parameters - [`KT-76448`](https://youtrack.jetbrains.com/issue/KT-76448) FirOverrideChecker: class ClsMethodImpl is not a subtype of class KtNamedDeclaration for factory VIRTUAL\_MEMBER\_HIDDEN - [`KT-73360`](https://youtrack.jetbrains.com/issue/KT-73360) Migrate K/JVM sources to new IR parameter API - [`KT-74852`](https://youtrack.jetbrains.com/issue/KT-74852) Kotlin/Native: allow caches for thread state checker and sanitizers - [`KT-76130`](https://youtrack.jetbrains.com/issue/KT-76130) IR evaluator does not support array literals in annotation parameter default values - [`KT-76436`](https://youtrack.jetbrains.com/issue/KT-76436) Missing K2 checker: non-local return through lambda passed to inline f/o - [`KT-74326`](https://youtrack.jetbrains.com/issue/KT-74326) False negative: no variable must be initialized error though code doesn't compile - [`KT-76572`](https://youtrack.jetbrains.com/issue/KT-76572) FIR\_NON\_SUPPRESSIBLE\_ERROR\_NAMES does not contain deprecation errors - [`KT-75704`](https://youtrack.jetbrains.com/issue/KT-75704) Refactor `FirWhenSubjectExpression` - [`KT-76284`](https://youtrack.jetbrains.com/issue/KT-76284) Flexible captured type is not approximated in receiver position - [`KT-76192`](https://youtrack.jetbrains.com/issue/KT-76192) RETURN\_TYPE\_MISMATCH with same expected and actual type: nullability of actual type is omitted - [`KT-75944`](https://youtrack.jetbrains.com/issue/KT-75944) Allow using invokedynamic for lambdas with no 'Runtime' level retention annotations - [`KT-76396`](https://youtrack.jetbrains.com/issue/KT-76396) FirIntegerConstantOperatorScope: NoSuchElementException: Collection contains no element matching the predicate - [`KT-76209`](https://youtrack.jetbrains.com/issue/KT-76209) CONFLICTING\_UPPER\_BOUNDS on `Nothing` bound - [`KT-59506`](https://youtrack.jetbrains.com/issue/KT-59506) Context receivers: Unable to use trailing comma in receiver list - [`KT-46119`](https://youtrack.jetbrains.com/issue/KT-46119) NONE\_APPLICABLE instead of NAMED\_ARGUMENTS\_NOT\_ALLOWED with overloaded Java constructor call - [`KT-75503`](https://youtrack.jetbrains.com/issue/KT-75503) Run lazy resolution in CallableCopyTypeCalculator and use withForcedTypeCalculator everywhere in checkers - [`KT-76485`](https://youtrack.jetbrains.com/issue/KT-76485) Don't report EXTENSION\_SHADOWED\_BY\_MEMBER if extension can be called with named arguments - [`KT-76154`](https://youtrack.jetbrains.com/issue/KT-76154) False positive "EXTENSION\_SHADOWED\_BY\_MEMBER" when extension adds default values to parameters - [`KT-76527`](https://youtrack.jetbrains.com/issue/KT-76527) False positive UNSUPPORTED\_CONTEXTUAL\_DECLARATION\_CALL with -Xcontext-receivers and implicit invoke - [`KT-63246`](https://youtrack.jetbrains.com/issue/KT-63246) K2: False positive NOTHING\_TO\_OVERRIDE in generic property with context receiver in non generic class extending generic class - [`KT-58534`](https://youtrack.jetbrains.com/issue/KT-58534) K2: "Argument type mismatch" with typealias to context receiver functional type - [`KT-71792`](https://youtrack.jetbrains.com/issue/KT-71792) Switch latest stable version in Kotlin project to 2.2 - [`KT-74827`](https://youtrack.jetbrains.com/issue/KT-74827) CompilationErrorException : Could not load module in an attempt to find deserializer when trying to evaluate an expression - [`KT-70352`](https://youtrack.jetbrains.com/issue/KT-70352) K2: False-negative CONFLICTING\_UPPER\_BOUNDS on `Nothing` bound - [`KT-71481`](https://youtrack.jetbrains.com/issue/KT-71481) K2: drop pre-1.6 language features from compiler code - [`KT-74454`](https://youtrack.jetbrains.com/issue/KT-74454) Support trailing comma in context parameters - [`KT-74069`](https://youtrack.jetbrains.com/issue/KT-74069) False positive UNUSED\_EXPRESSION due to Long/Int conversion - [`KT-74337`](https://youtrack.jetbrains.com/issue/KT-74337) Local Delegated properties don't preserve their annotations and don't show up in reflection - [`KT-55187`](https://youtrack.jetbrains.com/issue/KT-55187) Context receivers in function types can have labels - [`KT-58498`](https://youtrack.jetbrains.com/issue/KT-58498) Context receivers: ClassCastException with object and extension function in interface - [`KT-58165`](https://youtrack.jetbrains.com/issue/KT-58165) K2: "IllegalArgumentException: No argument for parameter VALUE\_PARAMETER" on overridden contextual property - [`KT-75234`](https://youtrack.jetbrains.com/issue/KT-75234) Add error for callsInPlace contracts on context parameters - [`KT-73805`](https://youtrack.jetbrains.com/issue/KT-73805) K2: Investigate missing diagnostic in implicit invoke call on context function type with receiver from module with disabled context parameters - [`KT-41934`](https://youtrack.jetbrains.com/issue/KT-41934) NI: a type variable for lambda parameter has been inferred to nullable type instead of not null one - [`KT-75983`](https://youtrack.jetbrains.com/issue/KT-75983) Backend Internal error: Exception during IR lowering 'IllegalStateException: Internal error: cannot convert Any to Int' - [`KT-75535`](https://youtrack.jetbrains.com/issue/KT-75535) Compilation of typealias does not check for clashes - [`KT-72313`](https://youtrack.jetbrains.com/issue/KT-72313) K2 IDE / KMP Debugger: Evaluation of inline functions declared in a common source set causes a crash - [`KT-76290`](https://youtrack.jetbrains.com/issue/KT-76290) False positive UNUSED\_EXPRESSION while returning Unit in the when branches - [`KT-32358`](https://youtrack.jetbrains.com/issue/KT-32358) NI: Smart cast doesn't work with inline function after elvis operator - [`KT-76316`](https://youtrack.jetbrains.com/issue/KT-76316) K2: Missing NON\_PUBLIC\_CALL\_FROM\_PUBLIC\_INLINE on object extending private class in public inline function - [`KT-76324`](https://youtrack.jetbrains.com/issue/KT-76324) Frontend diagnostic says "... this will be an error in Kotlin N.M" but N.M is already released - [`KT-76058`](https://youtrack.jetbrains.com/issue/KT-76058) PCLA: compile-time failure on calling a higher-order function from another module inside a lambda assigned to a variable of a type with a postponed type variable - [`KT-75571`](https://youtrack.jetbrains.com/issue/KT-75571) K2: type mismatch error provides unsubstituted types - [`KT-31391`](https://youtrack.jetbrains.com/issue/KT-31391) 'Recursive call is not a tail call' with elvis operator in tailrec function - [`KT-73420`](https://youtrack.jetbrains.com/issue/KT-73420) False-positive `NON_TAIL_RECURSIVE_CALL` on tailrec function with elvis in the return statement - [`KT-75815`](https://youtrack.jetbrains.com/issue/KT-75815) Disable warnings about different context parameter names in overrides - [`KT-75169`](https://youtrack.jetbrains.com/issue/KT-75169) Unnecessary EXTENSION\_SHADOWED\_BY\_MEMBER on generic declarations - [`KT-75483`](https://youtrack.jetbrains.com/issue/KT-75483) Native: redundant unboxing generated with smart cast - [`KT-76339`](https://youtrack.jetbrains.com/issue/KT-76339) K2: Dangling modifier list is missed for enum entries in PSI mode - [`KT-75513`](https://youtrack.jetbrains.com/issue/KT-75513) Avoid overrides traversal without preinitialization - [`KT-74587`](https://youtrack.jetbrains.com/issue/KT-74587) Report an error when JvmDefaultWithoutCompatibility is used with -Xjvm-default=all - [`KT-76257`](https://youtrack.jetbrains.com/issue/KT-76257) Annotations with class references are not supported when marking IR declarations as visible to metadata - [`KT-71793`](https://youtrack.jetbrains.com/issue/KT-71793) Drop language versions 1.6 and 1.7 - [`KT-59272`](https://youtrack.jetbrains.com/issue/KT-59272) Incorrect bytecode generated: wrong line number table after condition - [`KT-69248`](https://youtrack.jetbrains.com/issue/KT-69248) K2: IAE “class KtDotQualifiedExpression is not a subtype of class KtCallExpression for factory ENUM\_CLASS\_CONSTRUCTOR\_CALL” with qualified enum constructor call - [`KT-73778`](https://youtrack.jetbrains.com/issue/KT-73778) Kotlin Debugger: NSFE on accessing private property from dependencies during evaluation - [`KT-74131`](https://youtrack.jetbrains.com/issue/KT-74131) Incorrect line numbers for static initializer with delegated local variable - [`KT-76320`](https://youtrack.jetbrains.com/issue/KT-76320) K2: PsiRawFirBuilder: import alias triggers ast loading - [`KT-63851`](https://youtrack.jetbrains.com/issue/KT-63851) K2: No `setterValueParameter` in metadata for property setter with an annotated parameter - [`KT-55083`](https://youtrack.jetbrains.com/issue/KT-55083) JVM: AbstractMethodError caused by lambda with sealed base interface and fun sub interface and overridden method - [`KT-16727`](https://youtrack.jetbrains.com/issue/KT-16727) Names for anonymous classes in interfaces are malformed on JDK 8 - [`KT-12466`](https://youtrack.jetbrains.com/issue/KT-12466) NoClassDefFoundError: B$DefaultImpls on super interface call through K-J-K inheritance - [`KT-71002`](https://youtrack.jetbrains.com/issue/KT-71002) Possible inheritance from nullable type through typealias - [`KT-75293`](https://youtrack.jetbrains.com/issue/KT-75293) K2: Missing \[HAS\_NEXT\_FUNCTION\_TYPE\_MISMATCH] diagnostics - [`KT-75498`](https://youtrack.jetbrains.com/issue/KT-75498) Forbid .declarations access from checkers - [`KT-72335`](https://youtrack.jetbrains.com/issue/KT-72335) KotlinIllegalArgumentExceptionWithAttachments when using illegal selector - [`KT-68375`](https://youtrack.jetbrains.com/issue/KT-68375) K2: FirPrimaryConstructorSuperTypeChecker fails on generated superclasses - [`KT-71718`](https://youtrack.jetbrains.com/issue/KT-71718) K2: drop TypePreservingVisibilityWrtHack - [`KT-75112`](https://youtrack.jetbrains.com/issue/KT-75112) FE resolves wrong receivers order for property passed to delegate - [`KT-75924`](https://youtrack.jetbrains.com/issue/KT-75924) K2. Incorrect generic type Inference "R? & Any" appears for "Add explicit type arguments" - [`KT-75969`](https://youtrack.jetbrains.com/issue/KT-75969) java.lang.IllegalArgumentException: source must not be null on red code - [`KT-75322`](https://youtrack.jetbrains.com/issue/KT-75322) ConeDiagnosticToFirDiagnosticKt: source must not be null - [`KT-73800`](https://youtrack.jetbrains.com/issue/KT-73800) Wrong method executed on super call in -Xjvm-default=all/all-compatibility with an extraneous super-interface - [`KT-38029`](https://youtrack.jetbrains.com/issue/KT-38029) Wrong method executed on super call in diamond hierarchy with covariant override - [`KT-75242`](https://youtrack.jetbrains.com/issue/KT-75242) Any use-site target can be applied to a lambda and an expression - [`KT-73051`](https://youtrack.jetbrains.com/issue/KT-73051) incorrect direction of subtyping violation in type mismatch error's message for A\<X<C>> \</: A\<Y<Tv>> given a Tv <: Rv == C constraint from a lambda return position - [`KT-75090`](https://youtrack.jetbrains.com/issue/KT-75090) Argument type mismatch: actual type is 'SuspendFunction0<Unit>', but 'SuspendFunction0<Unit>' was expected when anonymous function is passed to function expecting suspend function type - [`KT-74956`](https://youtrack.jetbrains.com/issue/KT-74956) K2: No USAGE\_IS\_NOT\_INLINABLE with compiling an inlined function call - [`KT-76049`](https://youtrack.jetbrains.com/issue/KT-76049) K2: drop explicitTypeArgumentIfMadeFlexibleSynthetically creation when DontMakeExplicitJavaTypeArgumentsFlexible is enabled - [`KT-76055`](https://youtrack.jetbrains.com/issue/KT-76055) K2: drop prepareCustomReturnTypeSubstitutorForFunctionCall logic when DontMakeExplicitJavaTypeArgumentsFlexible is enabled - [`KT-76057`](https://youtrack.jetbrains.com/issue/KT-76057) K2: don't do reverse Java overridability checks when DontMakeExplicitJavaTypeArgumentsFlexible is enabled - [`KT-75197`](https://youtrack.jetbrains.com/issue/KT-75197) K2: Missing \[COMPARE\_TO\_TYPE\_MISMATCH] diagnostics - [`KT-75639`](https://youtrack.jetbrains.com/issue/KT-75639) Inline `context` function leads to `ClassCastException` - [`KT-75677`](https://youtrack.jetbrains.com/issue/KT-75677) K2: change runtime behavior of KT-75649 case in 2.2 - [`KT-75961`](https://youtrack.jetbrains.com/issue/KT-75961) K2: `PsiRawFirBuilder.Visitor#visitSimpleNameExpression`forces AST loading via `getReferencedNameElement().node.text` - [`KT-67869`](https://youtrack.jetbrains.com/issue/KT-67869) Make inference for lambda working consistently inside and outside of the call - [`KT-74885`](https://youtrack.jetbrains.com/issue/KT-74885) K2: IAE "source must not be null" in FirCyclicTypeBoundsChecker - [`KT-75578`](https://youtrack.jetbrains.com/issue/KT-75578) K2: False negative \[SUPER\_CALL\_WITH\_DEFAULT\_PARAMETERS] when calling the upper-class implementation of a method with the default value argument - [`KT-73954`](https://youtrack.jetbrains.com/issue/KT-73954) Generate implementations in classes for inherited non-abstract methods in -Xjvm-default=all-compatibility - [`KT-75173`](https://youtrack.jetbrains.com/issue/KT-75173) Context parameters: KotlinIllegalArgumentExceptionWithAttachments if you override function with value/extension parameter by fun with context - [`KT-75742`](https://youtrack.jetbrains.com/issue/KT-75742) Native: "IllegalArgumentException: unknown pass name '' " when specifying an empty list of LLVM passes - [`KT-74819`](https://youtrack.jetbrains.com/issue/KT-74819) K2: False-positive overload resolution ambiguity for flatMap inside PCLA - [`KT-75093`](https://youtrack.jetbrains.com/issue/KT-75093) K2 IDE: "Unreachable code" highlighting range is confusing - [`KT-74572`](https://youtrack.jetbrains.com/issue/KT-74572) Context parameters: contracts don't work with context parameters - [`KT-74765`](https://youtrack.jetbrains.com/issue/KT-74765) Move K1 lazy IR implementation from 'ir.tree' to 'psi2ir' - [`KT-71425`](https://youtrack.jetbrains.com/issue/KT-71425) IR Inliner: investigate return type of an inlined block - [`KT-74764`](https://youtrack.jetbrains.com/issue/KT-74764) Native: merge init nodes generated within the same LLVM module for the same klib - [`KT-75561`](https://youtrack.jetbrains.com/issue/KT-75561) K/N: place InteropLowering after UpgradeCallableReferences phase - [`KT-73369`](https://youtrack.jetbrains.com/issue/KT-73369) K/N: move interop lowering up the pipeline - [`KT-75517`](https://youtrack.jetbrains.com/issue/KT-75517) K2: Refactor FirCallableSymbol.resolvedContextParameters to return symbols - [`KT-75821`](https://youtrack.jetbrains.com/issue/KT-75821) K2: REPL resolution doesn't take into account the property type when processing its initializer - [`KT-75705`](https://youtrack.jetbrains.com/issue/KT-75705) IllegalArgumentException when isInitialized is used with java field - [`KT-75334`](https://youtrack.jetbrains.com/issue/KT-75334) Java target shouldn't be specified if Kotlin target isn't specified - [`KT-75157`](https://youtrack.jetbrains.com/issue/KT-75157) Missing PARAMETER\_NAME\_CHANGED\_ON\_OVERRIDE and DIFFERENT\_NAMES\_FOR\_THE\_SAME\_PARAMETER\_IN\_SUPERTYPES for context parameters - [`KT-75160`](https://youtrack.jetbrains.com/issue/KT-75160) Check usages of value parameters in checkers and adapt to context parameters - [`KT-75729`](https://youtrack.jetbrains.com/issue/KT-75729) KtPsiFactory: no type-safe way to create triple-quoted KtStringTemplateExpression - [`KT-75040`](https://youtrack.jetbrains.com/issue/KT-75040) Unify `subject` and `subjectVariable` in `FirWhenExpression` - [`KT-75323`](https://youtrack.jetbrains.com/issue/KT-75323) FirSyntheticProperty: Unexpected status. Expected is FirResolvedDeclarationStatus, but was FirDeclarationStatusImpl - [`KT-75602`](https://youtrack.jetbrains.com/issue/KT-75602) Introduce concept of shared library session in Fir sessions - [`KT-75509`](https://youtrack.jetbrains.com/issue/KT-75509) PARAMETER\_NAME\_CHANGED\_ON\_OVERRIDE is reported randomly - [`KT-75124`](https://youtrack.jetbrains.com/issue/KT-75124) IAE “class org.jetbrains.kotlin.psi.KtContextReceiver is not a subtype of class org.jetbrains.kotlin.psi.KtParameter for factory EXPOSED\_PARAMETER\_TYPE” on private context receiver - [`KT-73585`](https://youtrack.jetbrains.com/issue/KT-73585) K2: ABSTRACT\_SUPER\_CALL is not reported - [`KT-75531`](https://youtrack.jetbrains.com/issue/KT-75531) K2 REPL: local name doesn't shadow one from implicit receiver - [`KT-73359`](https://youtrack.jetbrains.com/issue/KT-73359) Migrate frontend sources to new IR parameter API - [`KT-75380`](https://youtrack.jetbrains.com/issue/KT-75380) K2: Modality is configured incorrectly for some FirDefaultPropertyAccessor - [`KT-75526`](https://youtrack.jetbrains.com/issue/KT-75526) Regression in K2 scripting: local name doesn't shadow one from the implicit receiver - [`KT-59379`](https://youtrack.jetbrains.com/issue/KT-59379) K2: Missing MIXING\_NAMED\_AND\_POSITIONED\_ARGUMENTS - [`KT-75106`](https://youtrack.jetbrains.com/issue/KT-75106) K2: type parameters of anonymous functions are unresolved - [`KT-73387`](https://youtrack.jetbrains.com/issue/KT-73387) Unexpected implicit type during enhancement - [`KT-72618`](https://youtrack.jetbrains.com/issue/KT-72618) Cannot define operator inc/dec in class context - [`KT-74546`](https://youtrack.jetbrains.com/issue/KT-74546) Serialize context parameters to metadata - [`KT-68768`](https://youtrack.jetbrains.com/issue/KT-68768) K2: unsuccessful inference fork with jspecify annotations - [`KT-75345`](https://youtrack.jetbrains.com/issue/KT-75345) Add a test for KT-42271 - [`KT-75012`](https://youtrack.jetbrains.com/issue/KT-75012) K2: Compiler crash on `dynamic == null` - [`KT-75195`](https://youtrack.jetbrains.com/issue/KT-75195) IllegalStateException: No value for annotation parameter when `@all` meta-target is used with annotation with constructor - [`KT-75163`](https://youtrack.jetbrains.com/issue/KT-75163) WRONG\_ANNOTATION\_TARGET\_WITH\_USE\_SITE\_TARGET for `@all` meta-target although there are applicable targets - [`KT-75198`](https://youtrack.jetbrains.com/issue/KT-75198) `@all` meta-target should be forbidden for delegated properties - [`KT-74958`](https://youtrack.jetbrains.com/issue/KT-74958) K2: UNEXPECTED\_TRAILING\_LAMBDA\_ON\_A\_NEW\_LINE isn't reported on accidental trailing closure - [`KT-74982`](https://youtrack.jetbrains.com/issue/KT-74982) Improve UNSUPPORTED message handling - [`KT-75111`](https://youtrack.jetbrains.com/issue/KT-75111) False negative "This declaration needs opt-in" for usage of enum entry with OptIn marker in another module - [`KT-74924`](https://youtrack.jetbrains.com/issue/KT-74924) Infinite recursion in substitution of captured type with recursive supertype - [`KT-75289`](https://youtrack.jetbrains.com/issue/KT-75289) NPE: getParent(...) must not be null - [`KT-75275`](https://youtrack.jetbrains.com/issue/KT-75275) Inline class member inherited from interface is not mangled in '-Xjvm-default=all-compatibility' - [`KT-74340`](https://youtrack.jetbrains.com/issue/KT-74340) FIR: folding binary expression chains for psi parser - [`KT-73831`](https://youtrack.jetbrains.com/issue/KT-73831) Do not choose `field` target in annotation classes - [`KT-73494`](https://youtrack.jetbrains.com/issue/KT-73494) Enable first-only-warn annotation defaulting mode - [`KT-75174`](https://youtrack.jetbrains.com/issue/KT-75174) K2: incorrect influence of return type nullability on required receiver type in KJK hierarchy with property - [`KT-74920`](https://youtrack.jetbrains.com/issue/KT-74920) Overriding T! with T & Any is not allowed to the extension property receiver type - [`KT-75150`](https://youtrack.jetbrains.com/issue/KT-75150) False ambiguous context parameter reported because context is not chosen via generic parameter - [`KT-74965`](https://youtrack.jetbrains.com/issue/KT-74965) CLI compiler doesn't report syntax errors for JS, Metadata backends if light-tree mode is disabled - [`KT-74303`](https://youtrack.jetbrains.com/issue/KT-74303) K2 IDE / Kotlin Debugger: AE “Trying to inline an anonymous object which is not part of the public ABI” on evaluating private inline function with object inside - [`KT-75177`](https://youtrack.jetbrains.com/issue/KT-75177) NoSuchMethodError on suspend default interface method fake override returning inline class in -Xjvm-default=all-compatibility - [`KT-74718`](https://youtrack.jetbrains.com/issue/KT-74718) K/N: Move TestProcessor phase to the top of the pipeline - [`KT-75015`](https://youtrack.jetbrains.com/issue/KT-75015) Context parameters: it is possible to declare anonymous function with modifiers but they don't have any effect - [`KT-75092`](https://youtrack.jetbrains.com/issue/KT-75092) K2: Missing errors for modifiers on anonymous function in statement position - [`KT-75009`](https://youtrack.jetbrains.com/issue/KT-75009) Context parameters: context is unresolved inside anonymous function if passed as an argument - [`KT-75017`](https://youtrack.jetbrains.com/issue/KT-75017) Context parameters: "IllegalStateException: Cannot find variable a: R|kotlin/String| in local storage " when context from another local function is called - [`KT-75154`](https://youtrack.jetbrains.com/issue/KT-75154) Context receiver deprecation warning should depend on langauge version, not on LATEST\_STABLE - [`KT-74979`](https://youtrack.jetbrains.com/issue/KT-74979) Context parameters: anonymous functions with a context aren't parsed in complex cases - [`KT-74673`](https://youtrack.jetbrains.com/issue/KT-74673) K2: ClassCastException when passing suspending functional interface with generic - [`KT-74469`](https://youtrack.jetbrains.com/issue/KT-74469) K2: False positive: "Argument type mismatch" during Java interop - [`KT-75105`](https://youtrack.jetbrains.com/issue/KT-75105) K2: False negative NAME\_IN\_CONSTRAINT\_IS\_NOT\_A\_TYPE\_PARAMETER for type constraint of anonymous function - [`KT-74929`](https://youtrack.jetbrains.com/issue/KT-74929) False positive TYPE\_PARAMETER\_OF\_PROPERTY\_NOT\_USED\_IN\_RECEIVER if it is used with T\&Any - [`KT-74227`](https://youtrack.jetbrains.com/issue/KT-74227) K2: "Cannot infer type for this parameter. Please specify it explicitly" caused by lambda in another lambda with a parameterized function type - [`KT-64558`](https://youtrack.jetbrains.com/issue/KT-64558) K2 compiler does not report UNNECESSARY\_SAFE\_CALL, UNNECESSARY\_NOT\_NULL\_ASSERTION, USELESS\_ELVIS, while K2 IDEA does - [`KT-74728`](https://youtrack.jetbrains.com/issue/KT-74728) K2: Java method overriding Kotlin method with receiver loses vararg modifier - [`KT-70789`](https://youtrack.jetbrains.com/issue/KT-70789) CLI error "mixing legacy and modern plugin arguments is prohibited" on using -Xcompiler-plugin unless default scripting plugin is disabled - [`KT-72829`](https://youtrack.jetbrains.com/issue/KT-72829) Forbid 'entries' name of enum entry, and deprioritize it in resolve - [`KT-75037`](https://youtrack.jetbrains.com/issue/KT-75037) K2: IrGeneratedDeclarationsRegistrar.registerFunctionAsMetadataVisible doesn't handle extension receivers and context parameters - [`KT-73149`](https://youtrack.jetbrains.com/issue/KT-73149) Annotations support for context parameters - [`KT-74798`](https://youtrack.jetbrains.com/issue/KT-74798) Report error on local contextual properties - [`KT-74092`](https://youtrack.jetbrains.com/issue/KT-74092) Context parameters: it is not possible to declare an anonymous function with a context - [`KT-52152`](https://youtrack.jetbrains.com/issue/KT-52152) K2: Investigate suspicious code at SAM conversions - [`KT-75016`](https://youtrack.jetbrains.com/issue/KT-75016) K2: BackendException when context var property is declared in interface - [`KT-74474`](https://youtrack.jetbrains.com/issue/KT-74474) K2: Report more precise diagnostic when last expression of non-unit lambda is a statement - [`KT-74478`](https://youtrack.jetbrains.com/issue/KT-74478) K2: False negative RETURN TYPE\_MISMATCH if the last statement of a lambda is indexed assignment - [`KT-73685`](https://youtrack.jetbrains.com/issue/KT-73685) K2 IDE / Kotlin Debugger: NSME “Method not found” on evaluating function with constant value in `@JvmName` - [`KT-74449`](https://youtrack.jetbrains.com/issue/KT-74449) Report RETURN\_TYPE\_MISMATCH instead of ARGUMENT\_TYPE\_MISMATCH for return expressions in lambdas - [`KT-74918`](https://youtrack.jetbrains.com/issue/KT-74918) FIR: account for K/Wasm diagnostics in generateNonSuppressibleErrorNamesFile - [`KT-74897`](https://youtrack.jetbrains.com/issue/KT-74897) K2: Report UNSUPPORTED\_FEATURE instead of TOPLEVEL\_TYPEALIASES\_ONLY for nested type aliases - [`KT-74963`](https://youtrack.jetbrains.com/issue/KT-74963) K2: Fir2Ir: Avoid a situation when startOffset > endOffset in generated IrBranch - [`KT-74697`](https://youtrack.jetbrains.com/issue/KT-74697) Overriding a method that's both deprecated and non-deprecated should not cause warnings - [`KT-74928`](https://youtrack.jetbrains.com/issue/KT-74928) K2: "IllegalStateException: Cannot find cached type parameter by FIR symbol" in KJK hierarchy with extension property - [`KT-74630`](https://youtrack.jetbrains.com/issue/KT-74630) K2: local class arguments in annotations on types and type parameters are not serialized - [`KT-74445`](https://youtrack.jetbrains.com/issue/KT-74445) Commonize Native Function/Property reference lowerings - [`KT-74670`](https://youtrack.jetbrains.com/issue/KT-74670) Warning message CONTEXT\_CLASS\_OR\_CONSTRUCTOR isn't reported for context receiver on the constructor - [`KT-74617`](https://youtrack.jetbrains.com/issue/KT-74617) Trivial SMAP optimization leads to missing debug info after inline - [`KT-74812`](https://youtrack.jetbrains.com/issue/KT-74812) compile-time failure on a callable reference with an input type inferred to an inaccessible generic type - [`KT-66195`](https://youtrack.jetbrains.com/issue/KT-66195) K2: Java method is not enhanced from overridden's context receivers - [`KT-74501`](https://youtrack.jetbrains.com/issue/KT-74501) Context parameters: ABSTRACT\_MEMBER\_NOT\_IMPLEMENTED if fun with context is implemented in Java in KJK hierarchy - [`KT-74385`](https://youtrack.jetbrains.com/issue/KT-74385) Missing diagnostic on repeated suspend modifier in function type - [`KT-74749`](https://youtrack.jetbrains.com/issue/KT-74749) Provide explanation IR before script compilation - [`KT-74751`](https://youtrack.jetbrains.com/issue/KT-74751) K2: IllegalStateException: Can't apply receivers of FirPropertyAccessExpressionImpl to IrTypeOperatorCallImpl - [`KT-74729`](https://youtrack.jetbrains.com/issue/KT-74729) NPE when suspend lambda has inline class parameter - [`KT-74336`](https://youtrack.jetbrains.com/issue/KT-74336) Not supported: class org.jetbrains.kotlin.fir.types.ConeIntersectionType - [`KT-74203`](https://youtrack.jetbrains.com/issue/KT-74203) K2: False negative NO\_ELSE\_IN\_WHEN of a generic type with star projection <\*> bounded by a sealed hierarchy - [`KT-48085`](https://youtrack.jetbrains.com/issue/KT-48085) Kotlin/Native: LLD removes live code with `--gc-sections` when producing DLL - [`KT-69164`](https://youtrack.jetbrains.com/issue/KT-69164) Native: use lld from bundled LLVM distribution when compiling on Windows for a MinGW target - [`KT-74081`](https://youtrack.jetbrains.com/issue/KT-74081) Context parameters: implicit call resolves to extension when there is a context - [`KT-74682`](https://youtrack.jetbrains.com/issue/KT-74682) Implement internal type exposure via parameter bounds deprecation postponement - [`KT-74556`](https://youtrack.jetbrains.com/issue/KT-74556) K2: "IAE: class KtDestructuringDeclaration is not a subtype of class KtNamedDeclaration for factory REDECLARATION" with two non-local destructuring declarations - [`KT-73146`](https://youtrack.jetbrains.com/issue/KT-73146) Context parameters CLI & diagnostics - [`KT-72104`](https://youtrack.jetbrains.com/issue/KT-72104) Consider enabling check for unbound symbols in JVM before lowerings - [`KT-74568`](https://youtrack.jetbrains.com/issue/KT-74568) Synthetic nested classes missing JVM attributes - [`KT-73703`](https://youtrack.jetbrains.com/issue/KT-73703) \[Native] Move KonanIrLinker to `serialization.native` module - [`KT-61175`](https://youtrack.jetbrains.com/issue/KT-61175) K2: FirReceiverParameter does not extend FirDeclaration - [`KT-73961`](https://youtrack.jetbrains.com/issue/KT-73961) 'lateinit is unnecessary' on transient properties should not be reported for serializable classes - [`KT-73858`](https://youtrack.jetbrains.com/issue/KT-73858) Compose / iOS: NullPointerException on building - [`KT-62953`](https://youtrack.jetbrains.com/issue/KT-62953) JVM IR: Use `SimpleNamedCompilerPhase` instead of `NamedCompilerPhase` - [`KT-72929`](https://youtrack.jetbrains.com/issue/KT-72929) Consider caching typealiased constructor symbols created by TypeAliasConstructorsSubstitutingScope - [`KT-74459`](https://youtrack.jetbrains.com/issue/KT-74459) K2: false positive MISSING\_DEPENDENCY\_CLASS for types inside default argument - [`KT-73705`](https://youtrack.jetbrains.com/issue/KT-73705) \[Native] Decouple native caches support from KonanIrLinker and KonanPartialModuleDeserializer - [`KT-74091`](https://youtrack.jetbrains.com/issue/KT-74091) K2: `@JvmOverloads`-produced overloads have generated line number table - [`KT-69754`](https://youtrack.jetbrains.com/issue/KT-69754) Drop -Xuse-k2 compiler flag - [`KT-73352`](https://youtrack.jetbrains.com/issue/KT-73352) K2: false negative ARRAY\_EQUALITY\_OPERATOR\_CAN\_BE\_REPLACED\_WITH\_EQUALS - [`KT-72962`](https://youtrack.jetbrains.com/issue/KT-72962) Consider enabling ConsiderForkPointsWhenCheckingContradictions LF earlier - [`KT-73027`](https://youtrack.jetbrains.com/issue/KT-73027) IllegalStateException: Annotation argument value cannot be null: since - [`KT-74242`](https://youtrack.jetbrains.com/issue/KT-74242) Freeze on `runCatching` call in `finally` block inside SAM conversion - [`KT-29222`](https://youtrack.jetbrains.com/issue/KT-29222) FIR: consider folding binary expression chains - [`KT-73760`](https://youtrack.jetbrains.com/issue/KT-73760) Cannot implement two Java interfaces with `@NotNull`-annotated type argument and Kotlin's plain (nullable) type parameter - [`KT-58933`](https://youtrack.jetbrains.com/issue/KT-58933) Applying suggested signature from WRONG\_NULLABILITY\_FOR\_JAVA\_OVERRIDE leads to red code - [`KT-70507`](https://youtrack.jetbrains.com/issue/KT-70507) Should parentheses prevent from plus/set operator desugaring? - [`KT-67520`](https://youtrack.jetbrains.com/issue/KT-67520) Change of behaviour of inline function with safe cast on value type - [`KT-67518`](https://youtrack.jetbrains.com/issue/KT-67518) Value classes leak their carrier type implementation details via inlining - [`KT-72305`](https://youtrack.jetbrains.com/issue/KT-72305) K2: Report error when using synthetic properties in case of mapped collections - [`KT-71226`](https://youtrack.jetbrains.com/issue/KT-71226) K2 Evaluator: Code fragment compilation with unresolved classes does not fail with exception - [`KT-70233`](https://youtrack.jetbrains.com/issue/KT-70233) Implement a deprecation error for FIELD-targeted annotations on annotation properties - [`KT-67517`](https://youtrack.jetbrains.com/issue/KT-67517) Value class upcast to Any leaks carrier type interfaces - [`KT-72814`](https://youtrack.jetbrains.com/issue/KT-72814) FIR: don't use function references in FirThisReference - [`KT-73153`](https://youtrack.jetbrains.com/issue/KT-73153) K2: Standalone diagnostics on type arguments are not reported - [`KT-73011`](https://youtrack.jetbrains.com/issue/KT-73011) K2: Allow overloads resolution for callable references based on expected type variable with constraints - [`KT-70139`](https://youtrack.jetbrains.com/issue/KT-70139) Remove dependencies of debugger on K1 and old JVM backend - [`KT-69223`](https://youtrack.jetbrains.com/issue/KT-69223) Drop parallel lowering mode in JVM backend - [`KT-7461`](https://youtrack.jetbrains.com/issue/KT-7461) Forbid using projection modifiers inside top-level Array in annotation's value parameter - [`KT-53804`](https://youtrack.jetbrains.com/issue/KT-53804) Restore old and incorrect logic of generating InnerClasses attributes for kotlin-stdlib - [`KT-52774`](https://youtrack.jetbrains.com/issue/KT-52774) Resolve unqualified enum constants based on expected type ##### Compose compiler ##### New features - [`5f7e5d1`](https://github.com/JetBrains/kotlin/commit/5f7e5d1518e839c1f8514a5c145aad52b1ce1739) Enabled PausableComposition feature flag by default - [`e49ba7a`](https://github.com/JetBrains/kotlin/commit/e49ba7a4e60da8c4bd5020376a69749484d39f6c) Enabled OptimizeNonSkippingGroups feature flag by default - ##### Fixes - [`b/420729503`](https://issuetracker.google.com/issues/420729503) Avoid copying `@Deprecated` annotations on Compose compiler stubs - [`b/417412949`](https://issuetracker.google.com/issues/417412949) Emit fake line number for `skipToGroupEnd` branch - [`b/412584977`](https://issuetracker.google.com/issues/412584977) Fix false positive for overriding open functions from older dependencies - [`b/409238521`](https://issuetracker.google.com/issues/409238521) Fix crash when searching for ComposableLambda::invoke function on JS - [`b/408752831`](https://issuetracker.google.com/issues/408752831) Fix early return with value from `key` groups - [`b/388505454`](https://issuetracker.google.com/issues/388505454) Treat context parameters the same way as extension receiver - [`b/408013789`](https://issuetracker.google.com/issues/408013789) Add missing return for the default function wrappers - [`b/405541364`](https://issuetracker.google.com/issues/405541364) Realize coalescable children in the body of `key` call - [`b/305035807`](https://issuetracker.google.com/issues/305035807) Add support for `@Composable` function references with K2 - [`b/401484249`](https://issuetracker.google.com/issues/401484249) Generate a group around `Array` constructor call - [`b/400380396`](https://issuetracker.google.com/issues/400380396) Fix missing `endMovableGroup` call with early return in `key` function - [`b/397855145`](https://issuetracker.google.com/issues/397855145) Fix "Unknown file" error in target annotation inference - [`b/274898109`](https://issuetracker.google.com/issues/274898109) Fix off-by-one error when calculating changed arg count for lambdas - [`b/377499888`](https://issuetracker.google.com/issues/377499888) Allow restarting overridden functions in a final class - [`b/393400768`](https://issuetracker.google.com/issues/393400768) Use -1 for `.changed` call if nullable enum parameter is `null` - [`b/390151896`](https://issuetracker.google.com/issues/390151896) Fix default arguments with varargs in `@Composable` functions - [`b/388030459`](https://issuetracker.google.com/issues/388030459), [`b/377737816`](https://issuetracker.google.com/issues/377737816) Prevent usage of transitive captures in lambda memoization - [`b/310004740`](https://issuetracker.google.com/issues/310004740) Check vararg parameter length in skipping logic - [`b/367066334`](https://issuetracker.google.com/issues/367066334) Add diagnostic to restrict `@Composable` annotation to function types only - [`b/388505454`](https://issuetracker.google.com/issues/388505454) Change order of $changed bits with context parameters - [`CMP-7873`](https://youtrack.jetbrains.com/issue/CMP-7873) Native build fails with "e: Compilation failed: Exception during generating code for following declaration" ##### IDE - [`KT-54804`](https://youtrack.jetbrains.com/issue/KT-54804) Generate synthetic functions for annotations on properties in light classes ##### IR. Actualizer - [`KT-70907`](https://youtrack.jetbrains.com/issue/KT-70907) Actualize fake override symbols in Ir Actualizer ##### IR. Inlining ##### Fixes - [`KT-76145`](https://youtrack.jetbrains.com/issue/KT-76145) Enhance error message about poisoned KLIBs in KLIB-based compilers - [`KT-70916`](https://youtrack.jetbrains.com/issue/KT-70916) IR: Report errors on exposure of private types in non-private inline functions - [`KT-73155`](https://youtrack.jetbrains.com/issue/KT-73155) Move `Mapping` from `LoweringContext` back to `CommonBackendContext` - [`KT-76186`](https://youtrack.jetbrains.com/issue/KT-76186) \[IR] Sanitize deserialized IR dump of anonymous classes - [`KT-75788`](https://youtrack.jetbrains.com/issue/KT-75788) IR inliner: Serialize preprocessed inline functions in a separate place inside KLIBs - [`KT-71416`](https://youtrack.jetbrains.com/issue/KT-71416) Perform IR-level visibility diagnostics for inline functions after the first phase of inlining - [`KT-76224`](https://youtrack.jetbrains.com/issue/KT-76224) \[IR]\[Inliner] Dumb file is unsuported in IrSymbolBase.getDescriptor() - [`KT-75793`](https://youtrack.jetbrains.com/issue/KT-75793) IR inliner: Stop injecting the deserialized function body to LazyIR inline function - [`KT-75791`](https://youtrack.jetbrains.com/issue/KT-75791) IR inliner: `NonLinkingIrInlineFunctionDeserializer` should load inline functions from a separate location in a KLIB - [`KT-73708`](https://youtrack.jetbrains.com/issue/KT-73708) Use some marker in KLIBs produced with IR inliner - [`KT-76024`](https://youtrack.jetbrains.com/issue/KT-76024) \[JS]\[IR Inliner] Partial linkage: No function found for symbol in `kotlin` package - [`KT-75733`](https://youtrack.jetbrains.com/issue/KT-75733) Reorganize execution of the common prefix at 1st phase of compilation - [`KT-75986`](https://youtrack.jetbrains.com/issue/KT-75986) Add an option to the `DumpIrTreeOptions` to dump IR signature if available - [`KT-75951`](https://youtrack.jetbrains.com/issue/KT-75951) \[IR Inliner] Illegal non-local return reported by the partial linkage engine - [`KT-75932`](https://youtrack.jetbrains.com/issue/KT-75932) Fix a problem with already bound symbol with public IR inline enabled - [`KT-64812`](https://youtrack.jetbrains.com/issue/KT-64812) Investigate and fix remaining owner usages in inliner - [`KT-74732`](https://youtrack.jetbrains.com/issue/KT-74732) IR: Exposure of private type is reported at wrong source location - [`KT-76007`](https://youtrack.jetbrains.com/issue/KT-76007) IR deserialization tests w/ enabled IR inliner: undefined offsets in IrInlinedFunctionBlock.inlinedFunctionSymbol - [`KT-74734`](https://youtrack.jetbrains.com/issue/KT-74734) \[Native] Use NativeInliningFacade in new subclass of AbstractFirNativeSerializationTest - [`KT-73985`](https://youtrack.jetbrains.com/issue/KT-73985) KLIB Synthetic Accessors Dump Format: Include local declarations - [`KT-72594`](https://youtrack.jetbrains.com/issue/KT-72594) \[JS]\[Native] Add IrInliningFacade to test runners - [`KT-74456`](https://youtrack.jetbrains.com/issue/KT-74456) SerializedIrDumpHandler: Compare IR dumps with source offsets - [`KT-73624`](https://youtrack.jetbrains.com/issue/KT-73624) \[Native] Implement inlining facade - [`KT-70370`](https://youtrack.jetbrains.com/issue/KT-70370) SyntheticAccessorLowering: Turn on mode with narrowing visibility on 1st phase of compilation - [`KT-70452`](https://youtrack.jetbrains.com/issue/KT-70452) OuterThisInInlineFunctionsSpecialAccessorLowering - run it after inlining of private functions - [`KT-70451`](https://youtrack.jetbrains.com/issue/KT-70451) Enable double-inlining in Native & JS backends unconditionally - [`KT-69681`](https://youtrack.jetbrains.com/issue/KT-69681) IR: Report warnings on exposure of private types in non-private inline functions ##### IR. Interpreter - [`KT-74581`](https://youtrack.jetbrains.com/issue/KT-74581) Support `IrRich*Reference` in IR interpreter ##### IR. Tree ##### Fixes - [`KT-73189`](https://youtrack.jetbrains.com/issue/KT-73189) Migrate compiler sources to new IR parameter API - [`KT-77508`](https://youtrack.jetbrains.com/issue/KT-77508) K/JS and K/Native CompilationException Wrong number of parameters in wrapper - [`KT-74331`](https://youtrack.jetbrains.com/issue/KT-74331) Implement IrElement.copyAttributes as a true attribute map copy - [`KT-76600`](https://youtrack.jetbrains.com/issue/KT-76600) Use a language feature to check error on cross-file IrGetField operations generated by compiler plugins - [`KT-75628`](https://youtrack.jetbrains.com/issue/KT-75628) IR validator: Forbid IrExpressionBody for IrFunction - [`KT-75679`](https://youtrack.jetbrains.com/issue/KT-75679) Extract common `invokeFunction` in IrRichCallableReference - [`KT-74799`](https://youtrack.jetbrains.com/issue/KT-74799) \[Native]\[IR] Excessive FUNCTION\_INTERFACE\_CLASS after deserialization - [`KT-71138`](https://youtrack.jetbrains.com/issue/KT-71138) Report error on cross-file IrGetField operations generated by compiler plugins - [`KT-75196`](https://youtrack.jetbrains.com/issue/KT-75196) \[IR] Make startOffset and endOffset mutable - [`KT-73206`](https://youtrack.jetbrains.com/issue/KT-73206) Extract common parts from new IrRichFunctionReference/IrRichPropertyReference nodes - [`KT-73190`](https://youtrack.jetbrains.com/issue/KT-73190) Migrate common backend sources to new IR parameter API - [`KT-73225`](https://youtrack.jetbrains.com/issue/KT-73225) Migrate `compiler.ir.serialization.common` to new IR parameter API - [`KT-73220`](https://youtrack.jetbrains.com/issue/KT-73220) Migrate `compiler.ir.tree` to new IR parameter API - [`KT-75189`](https://youtrack.jetbrains.com/issue/KT-75189) Add an IR validation for the correspondingPropertySymbol - [`KT-74275`](https://youtrack.jetbrains.com/issue/KT-74275) Adjust IR dump format for context parameters & new parameter API - [`KT-74269`](https://youtrack.jetbrains.com/issue/KT-74269) Drop IrElementVisitor, IrElementVisitorVoid and IrElementTransformer interfaces - [`KT-72739`](https://youtrack.jetbrains.com/issue/KT-72739) Create a lowering to replace old callable reference nodes with new ones - [`KT-73120`](https://youtrack.jetbrains.com/issue/KT-73120) Get rid of `Ir` class - [`KT-73045`](https://youtrack.jetbrains.com/issue/KT-73045) Fix inconsistency between shapes of IR calls vs callee - [`KT-69714`](https://youtrack.jetbrains.com/issue/KT-69714) \[IR] Remove IrErrorDeclaration - [`KT-73609`](https://youtrack.jetbrains.com/issue/KT-73609) Tests: Implement DeserializerFacade for Kotlin/Native - [`KT-73813`](https://youtrack.jetbrains.com/issue/KT-73813) Implement tests for all IR validator checkers - [`KT-73171`](https://youtrack.jetbrains.com/issue/KT-73171) Choose the approach for testing IR serialization/deserialization wrt IR inliner - [`KT-73430`](https://youtrack.jetbrains.com/issue/KT-73430) \[IR] Get rid of SymbolFinder usages outside of `Symbols` hierarchy - [`KT-74455`](https://youtrack.jetbrains.com/issue/KT-74455) IR dump: Support dumping source offsets - [`KT-73433`](https://youtrack.jetbrains.com/issue/KT-73433) \[IR] Get rid of some symbols lookup methods ##### JVM. Reflection - [`KT-75505`](https://youtrack.jetbrains.com/issue/KT-75505) Reflection: use kotlin-metadata-jvm to implement class visibility, modality, modifiers, etc - [`KT-77663`](https://youtrack.jetbrains.com/issue/KT-77663) Reflection: java.util.ServiceConfigurationError: "module kotlin.reflect does not declare `uses`" when using kotlin-reflect in modular mode - [`KT-75464`](https://youtrack.jetbrains.com/issue/KT-75464) Bundle kotlin-metadata-jvm into kotlin-reflect - [`KT-71832`](https://youtrack.jetbrains.com/issue/KT-71832) kotlin.jvm.internal.ClassReference static overhead is 11,060 bytes ##### JavaScript ##### New Features - [`KT-31493`](https://youtrack.jetbrains.com/issue/KT-31493) \[Kotlin/JS] Can't put typealias in file marked with JsModule annotation ##### Performance Improvements - [`KT-74533`](https://youtrack.jetbrains.com/issue/KT-74533) K/JS: avoid number to char calls in charSequenceGet intrinsic ##### Fixes - [`KT-77021`](https://youtrack.jetbrains.com/issue/KT-77021) CompilationException: Encountered a local class not previously collected on inner classes inside anonymous objects - [`KT-78073`](https://youtrack.jetbrains.com/issue/KT-78073) K/JS: KProperty from local delegate changes after another delegate is invoked - [`KT-77271`](https://youtrack.jetbrains.com/issue/KT-77271) KJS / Serialization: "Cannot set property message of Error which has only a getter" - [`KT-76235`](https://youtrack.jetbrains.com/issue/KT-76235) \[JS] Extra invalid line `tmp_0.tmp00__1 = Options;` in testSuspendFunction() - [`KT-76234`](https://youtrack.jetbrains.com/issue/KT-76234) \[JS] Extra invalid line `Parent` in testNested() - [`KT-76233`](https://youtrack.jetbrains.com/issue/KT-76233) \[JS] Extra invalid import line in testJsQualifier() - [`KT-74839`](https://youtrack.jetbrains.com/issue/KT-74839) AssociatedObjectKey metadata doesn't survive incremental compilation - [`KT-77418`](https://youtrack.jetbrains.com/issue/KT-77418) KJS: cannot debug with whole-program granularity - [`KT-76463`](https://youtrack.jetbrains.com/issue/KT-76463) KJS: `@JsPlainObject` fails in parent count is 8+ - [`KT-75606`](https://youtrack.jetbrains.com/issue/KT-75606) KJS: java.lang.AssertionError: Different declarations with the same signatures were detected - [`KT-69591`](https://youtrack.jetbrains.com/issue/KT-69591) KJS / d.ts: Wrong type of SerializerFactory for abstract classes - [`KT-72437`](https://youtrack.jetbrains.com/issue/KT-72437) KJS. Invalid `copy` method for inherited JSO with type parameters - [`KT-57192`](https://youtrack.jetbrains.com/issue/KT-57192) KJS: "Exported declaration uses non-exportable return type" caused by `@JsExport` Promise with Unit type - [`KT-73226`](https://youtrack.jetbrains.com/issue/KT-73226) Migrate K/JS to new IR parameter API - [`KT-75254`](https://youtrack.jetbrains.com/issue/KT-75254) KJS: Merge AbstractSuspendFunctionsLowering from Common and JS backends - [`KT-76440`](https://youtrack.jetbrains.com/issue/KT-76440) `@JsPlainObject` compiles broken code when inlining suspend function and non suspend function - [`KT-71169`](https://youtrack.jetbrains.com/issue/KT-71169) `@JsPlainObject` copy produces the wrong type when copied property is nullable in parent interface - [`KT-75772`](https://youtrack.jetbrains.com/issue/KT-75772) KJS: NullPointerException caused by reference of private class with `@JsExport` - [`KT-73363`](https://youtrack.jetbrains.com/issue/KT-73363) Migrate `js-plain-objects` plugin to new IR parameter API - [`KT-64927`](https://youtrack.jetbrains.com/issue/KT-64927) \[JS] TypeError when abstract class with override var property extends an exported abstract class with val property - [`KT-70623`](https://youtrack.jetbrains.com/issue/KT-70623) Kotlin/JS: Incremental compilation fails when granularity is changed - [`KT-74384`](https://youtrack.jetbrains.com/issue/KT-74384) Support new callable reference nodes in JS backend - [`KT-70652`](https://youtrack.jetbrains.com/issue/KT-70652) Kotlin/JS: `@JsExport` doesn't work with granularity per-file - [`KT-71365`](https://youtrack.jetbrains.com/issue/KT-71365) KJS. File-level export support - [`KT-68775`](https://youtrack.jetbrains.com/issue/KT-68775) Kotlin/JS infinite loop for exception message override that calls super.message - [`KT-42271`](https://youtrack.jetbrains.com/issue/KT-42271) K/JS: isInitialized for not-lateinit property isn't marked as error as in JVM project - [`KT-70664`](https://youtrack.jetbrains.com/issue/KT-70664) Extending a `@JsPlainObject` interface with a generic type parameter fails with a compile error - [`KT-71656`](https://youtrack.jetbrains.com/issue/KT-71656) K2 JS: "IllegalStateException: Class has no primary constructor: kotlin.ULong" - [`KT-42305`](https://youtrack.jetbrains.com/issue/KT-42305) KJS / IR: "Class constructor is marked as private" `@JsExport` produces wrong TS code for sealed classes - [`KT-52563`](https://youtrack.jetbrains.com/issue/KT-52563) KJS / IR: Invalid TypeScript generated for class extending base class with private constructor ##### Klibs ##### New Features - [`KT-72296`](https://youtrack.jetbrains.com/issue/KT-72296) Use specialized signatures for serialized local fake overrides ##### Fixes - [`KT-78168`](https://youtrack.jetbrains.com/issue/KT-78168) K/N: "IndexOutOfBoundsException: Index 3 out of bounds for length 3" for iOS build with Kotlin 2.2.0-RC2 - [`KT-74635`](https://youtrack.jetbrains.com/issue/KT-74635) KLIBs: Change call serialization scheme to store all arguments in a single list - [`KT-76061`](https://youtrack.jetbrains.com/issue/KT-76061) Add option for suppress warning of missing no-existent transitive klib dependencies - [`KT-70146`](https://youtrack.jetbrains.com/issue/KT-70146) \[KLIB Resolve] Don't fail on nonexistent transitive dependency - [`KT-75624`](https://youtrack.jetbrains.com/issue/KT-75624) Don't fail on an attempt to deserialize "unknown" IrStatementOrigin and IrDeclarationOrigin - [`KT-55808`](https://youtrack.jetbrains.com/issue/KT-55808) Support metadata version checks for klibs in the compiler - [`KT-56062`](https://youtrack.jetbrains.com/issue/KT-56062) Support `-Xmetadata-version` for KLIB-based compilers - [`KT-76158`](https://youtrack.jetbrains.com/issue/KT-76158) Drop "description" from local signatures - [`KT-75749`](https://youtrack.jetbrains.com/issue/KT-75749) KLIB: Fail with error on attempt to serialize/deserialize SpecialFakeOverrideSignature - [`KT-75941`](https://youtrack.jetbrains.com/issue/KT-75941) \[IR Inliner] Abstract function is not implemented in non-abstract anonymous object - [`KT-75867`](https://youtrack.jetbrains.com/issue/KT-75867) The CLI argument -Xabi-version allows versions with multiple 0 and -0 - [`KT-75192`](https://youtrack.jetbrains.com/issue/KT-75192) KLIB reader tends to extract files from the KLIB archive to a temporary directory even when this is not needed - [`KT-75013`](https://youtrack.jetbrains.com/issue/KT-75013) Make klib reader more flexible: allow empty directories to be omitted - [`KT-75680`](https://youtrack.jetbrains.com/issue/KT-75680) KLIB: Drop obsolete IrPerFileLibraryImpl & IrPerFileWriterImpl - [`KT-73779`](https://youtrack.jetbrains.com/issue/KT-73779) \[Native] Context parameters: extension receiver is preferred over context parameters - [`KT-65375`](https://youtrack.jetbrains.com/issue/KT-65375) Clean-up the logic for serialization of error types in metadata and in IR - [`KT-73826`](https://youtrack.jetbrains.com/issue/KT-73826) Deduplicate `IrFileEntry` that is serialized inside `IrInlinedFunctionBlock` - [`KT-75091`](https://youtrack.jetbrains.com/issue/KT-75091) Drop `targets/$target_name/kotlin` directory from klibs - [`KT-74352`](https://youtrack.jetbrains.com/issue/KT-74352) API4ABI: Fix representation of context parameters - [`KT-71007`](https://youtrack.jetbrains.com/issue/KT-71007) Align KLIB ABI version with the language version - [`KT-73672`](https://youtrack.jetbrains.com/issue/KT-73672) Bump KLIB ABI version in 2.2.0 - [`KT-74080`](https://youtrack.jetbrains.com/issue/KT-74080) API4ABI: Adapt API for value parameter kinds - [`KT-74396`](https://youtrack.jetbrains.com/issue/KT-74396) Support context parameters in klibs - [`KT-72931`](https://youtrack.jetbrains.com/issue/KT-72931) Support new callable reference nodes in KLIB \[de]serializer ##### Language Design ##### New Features - [`KT-2425`](https://youtrack.jetbrains.com/issue/KT-2425) Multidollar interpolation: improve handling of $ in string literals - [`KT-1436`](https://youtrack.jetbrains.com/issue/KT-1436) Support non-local break and continue - [`KT-13626`](https://youtrack.jetbrains.com/issue/KT-13626) Guard conditions in when-with-subject - [`KT-54206`](https://youtrack.jetbrains.com/issue/KT-54206) Support local contextual functions ##### Fixes - [`KT-53673`](https://youtrack.jetbrains.com/issue/KT-53673) Support `@DslMarker` annotations on contextual receivers - [`KT-73557`](https://youtrack.jetbrains.com/issue/KT-73557) Allow refining expect declarations for platform groups - [`KT-72417`](https://youtrack.jetbrains.com/issue/KT-72417) Annotation with target RECORD\_COMPONENT cannot be used on `@JvmRecord` data class components - [`KT-67977`](https://youtrack.jetbrains.com/issue/KT-67977) Compile results of annotations assigned to JvmRecord properties as in Java - [`KT-73502`](https://youtrack.jetbrains.com/issue/KT-73502) Context parameters: it is not possible to declare local function with a context - [`KT-73632`](https://youtrack.jetbrains.com/issue/KT-73632) Expect class redeclaration is allowed - [`KT-70002`](https://youtrack.jetbrains.com/issue/KT-70002) \[LC] Forbid using projection modifiers inside top-level Array in annotation's value parameter ##### Libraries ##### New Features - [`KT-76163`](https://youtrack.jetbrains.com/issue/KT-76163) K/N: Hide or remove CreateNSStringFromKString/CreateKStringFromNSString - [`KT-70456`](https://youtrack.jetbrains.com/issue/KT-70456) Base64: Support lineLength parameter for Mime - [`KT-76394`](https://youtrack.jetbrains.com/issue/KT-76394) kotlin.time.TimeSource.asClock missing - [`KT-31857`](https://youtrack.jetbrains.com/issue/KT-31857) Provide easy way to retrieve annotations for kotlinx-metadata - [`KT-76528`](https://youtrack.jetbrains.com/issue/KT-76528) Instant.parseOrNull - [`KT-74804`](https://youtrack.jetbrains.com/issue/KT-74804) Add `@MustUseValue` and `@IgnorableValue` / `@Discardable` to kotlin-stdlib - [`KT-74422`](https://youtrack.jetbrains.com/issue/KT-74422) KotlinWebsiteSampleRewriter should filter individual imports from samples package ##### Performance Improvements - [`KT-68860`](https://youtrack.jetbrains.com/issue/KT-68860) K/JS: optimize listOf(element) - [`KT-75647`](https://youtrack.jetbrains.com/issue/KT-75647) Optimized sequenceOf(T) overload is missing ##### Fixes - [`KT-72138`](https://youtrack.jetbrains.com/issue/KT-72138) Stabilize experimental API for 2.2 - [`KT-76831`](https://youtrack.jetbrains.com/issue/KT-76831) Atomic types: inconsistent behavior on JS and Wasm targets - [`KT-76795`](https://youtrack.jetbrains.com/issue/KT-76795) RecursiveDeletionTest.deleteRelativeSymbolicLink fails on Windows for unprivileged users - [`KT-75290`](https://youtrack.jetbrains.com/issue/KT-75290) kotlin-metadata: deprecate hasAnnotations flag, add JVM-only hasAnnotationsInBytecode instead - [`KT-76193`](https://youtrack.jetbrains.com/issue/KT-76193) Common Atomics: 'AtomicArray.compareAndSetAt' and 'compareAndExchangeAt' docs incorrectly suggest they use `==` when actually they use `===` - [`KT-54077`](https://youtrack.jetbrains.com/issue/KT-54077) Consider using SecureDirectoryStream in deleteRecursively even when Path.parent is null - [`KT-72866`](https://youtrack.jetbrains.com/issue/KT-72866) Standard library functions to work with context parameters - [`KT-76743`](https://youtrack.jetbrains.com/issue/KT-76743) Add kotlin-scripting-jvm to projectsUsedInIntelliJKotlinPlugin list - [`KT-72483`](https://youtrack.jetbrains.com/issue/KT-72483) Clean up redundant stdlib code for Kotlin 2.2 - [`KT-76385`](https://youtrack.jetbrains.com/issue/KT-76385) Remove suppression from functions to work with context parameters - [`KT-75337`](https://youtrack.jetbrains.com/issue/KT-75337) Remove suppress annotations from `@IgnorableReturnValue` - [`KT-72137`](https://youtrack.jetbrains.com/issue/KT-72137) Review deprecations in stdlib for 2.2 - [`KT-75491`](https://youtrack.jetbrains.com/issue/KT-75491) Non intuitive work of 'in' (contains) with String range - [`KT-75933`](https://youtrack.jetbrains.com/issue/KT-75933) Update readLine's KDoc to suggest alternative functions - [`KT-46360`](https://youtrack.jetbrains.com/issue/KT-46360) Type inference fails to infer type for sumOf call with integer literal: "Overload resolution ambiguity TypeVariable(T)) -> Int / Long" - [`KT-73590`](https://youtrack.jetbrains.com/issue/KT-73590) Samplify string.split - [`KT-75759`](https://youtrack.jetbrains.com/issue/KT-75759) Add the serializer for kotlin.time.Instant to the list of standard serializers - [`KT-71628`](https://youtrack.jetbrains.com/issue/KT-71628) Review deprecations in stdlib for 2.1 - [`KT-73726`](https://youtrack.jetbrains.com/issue/KT-73726) A link from shuffle's KDoc is not rendered properly - [`KT-74173`](https://youtrack.jetbrains.com/issue/KT-74173) The sample code of `lazy` on stdlib can not run on playground due to "samples" package import - [`KT-50081`](https://youtrack.jetbrains.com/issue/KT-50081) AbstractList sublist leads to StackOverflow ##### Native - [`KT-76992`](https://youtrack.jetbrains.com/issue/KT-76992) Native: update llvm for windows targets - [`KT-56107`](https://youtrack.jetbrains.com/issue/KT-56107) Support Enum.entries for C/ObjC interop enums - [`KT-76552`](https://youtrack.jetbrains.com/issue/KT-76552) LLVM Update: rebase the LLVM branch - [`KT-76662`](https://youtrack.jetbrains.com/issue/KT-76662) LLVM 19 update: documentation - [`KT-76560`](https://youtrack.jetbrains.com/issue/KT-76560) LLVM Update: investigate changes in filterStdargH test - [`KT-76283`](https://youtrack.jetbrains.com/issue/KT-76283) LLVM Update: pass all tests - [`KT-74377`](https://youtrack.jetbrains.com/issue/KT-74377) Kotlin Native: release executable crashes with error 139 - [`KT-75829`](https://youtrack.jetbrains.com/issue/KT-75829) LLVM Update: port K/N on LLVM 19 - [`KT-76280`](https://youtrack.jetbrains.com/issue/KT-76280) LLVM Update: benchmarksAnalyzer build failed - [`KT-70202`](https://youtrack.jetbrains.com/issue/KT-70202) Xcode 16 Linker fails with SIGBUS ##### Native. Build Infrastructure - [`KT-77349`](https://youtrack.jetbrains.com/issue/KT-77349) Kotlin/Native: default cache for stdlib is unused ##### Native. C and ObjC Import - [`KT-75598`](https://youtrack.jetbrains.com/issue/KT-75598) Native: fix samples/objc test - [`KT-76551`](https://youtrack.jetbrains.com/issue/KT-76551) LLVM Update: investigate CXFile equality problem further - [`KT-75781`](https://youtrack.jetbrains.com/issue/KT-75781) Xcode 16.3: Fix cinterop tests failing with fatal error: could not build module '\_stdint' - [`KT-74549`](https://youtrack.jetbrains.com/issue/KT-74549) Native: replace clang\_Type\_getNumProtocols/clang\_Type\_getProtocol with standard libclang functions ##### Native. Platforms - [`KT-74702`](https://youtrack.jetbrains.com/issue/KT-74702) Deprecate Windows 7 support ##### Native. Runtime - [`KT-71534`](https://youtrack.jetbrains.com/issue/KT-71534) Native: Support Latin-1 encoded strings at runtime - [`KT-67741`](https://youtrack.jetbrains.com/issue/KT-67741) Kotlin/Native: Unify SpecialRef handling ##### Native. Runtime. Memory - [`KT-74831`](https://youtrack.jetbrains.com/issue/KT-74831) Kotlin/Native: investigate mmap usage in custom allocator - [`KT-74432`](https://youtrack.jetbrains.com/issue/KT-74432) Native: add an option to allocate everything in SingleObjectPage - [`KT-74975`](https://youtrack.jetbrains.com/issue/KT-74975) Enable CMS by default in Swift export - [`KT-60928`](https://youtrack.jetbrains.com/issue/KT-60928) Kotlin/Native: refactor allocator code - [`KT-50291`](https://youtrack.jetbrains.com/issue/KT-50291) Kotlin/Native: remove dependency of mm on gc implementation ##### Native. Swift Export - [`KT-75166`](https://youtrack.jetbrains.com/issue/KT-75166) Support export of platform libraries types in Swift export - [`KT-75079`](https://youtrack.jetbrains.com/issue/KT-75079) Swift export: add dependency from sir-compiler-bridge to Analysis API - [`KT-72413`](https://youtrack.jetbrains.com/issue/KT-72413) Swift Export: potential memory leak when best-fitting class is different from the formal type - [`KT-72107`](https://youtrack.jetbrains.com/issue/KT-72107) Remove IntoSingleModule stratagy ##### Tools. Ant - [`KT-73116`](https://youtrack.jetbrains.com/issue/KT-73116) Deprecate Ant support ##### Tools. BCV - [`KT-75686`](https://youtrack.jetbrains.com/issue/KT-75686) Improve DSL for BCV in KGP - [`KT-76129`](https://youtrack.jetbrains.com/issue/KT-76129) Abi validation filtering functionality for included classes doesn't work - [`KT-75999`](https://youtrack.jetbrains.com/issue/KT-75999) ABI validation filter doesn't apply excluded kotlin files - [`KT-75981`](https://youtrack.jetbrains.com/issue/KT-75981) ABI validation filter not applying excluded classes without package names - [`KT-71168`](https://youtrack.jetbrains.com/issue/KT-71168) Implement a prototype of ABI Validation in Kotlin Gradle Plugin ##### Tools. Build Tools API - [`KT-76455`](https://youtrack.jetbrains.com/issue/KT-76455) BTA: Compilation is always non-incremental if BTA API >= 2.2.0 is used together with BTA impl < 2.2.0 - [`KT-76060`](https://youtrack.jetbrains.com/issue/KT-76060) BTA: Java sources passed for IC may fail compilation in non-incremental mode - [`KT-74041`](https://youtrack.jetbrains.com/issue/KT-74041) Build Tools API: Lower level or remove compiler arguments log ##### Tools. CLI ##### New Features - [`KT-73606`](https://youtrack.jetbrains.com/issue/KT-73606) Provide a unified interface for managing the reporting of compiler warnings - [`KT-24746`](https://youtrack.jetbrains.com/issue/KT-24746) Provide ability to exclude specific warnings from compiler option Werror (all warnings as errors) - [`KT-18783`](https://youtrack.jetbrains.com/issue/KT-18783) Option to treat a specific compiler warning as an error - [`KT-76095`](https://youtrack.jetbrains.com/issue/KT-76095) Add JVM target bytecode version 24 - [`KT-73007`](https://youtrack.jetbrains.com/issue/KT-73007) Add stable compiler argument -jvm-default instead of -Xjvm-default ##### Performance Improvements - [`KT-75641`](https://youtrack.jetbrains.com/issue/KT-75641) kotlinc -help spends almost 1 second on Usage.render() ##### Fixes - [`KT-77445`](https://youtrack.jetbrains.com/issue/KT-77445) UNRESOLVED\_REFERENCE when importing classes from kotlin-stdlib - [`KT-75300`](https://youtrack.jetbrains.com/issue/KT-75300) Lenient compiler mode which generates stubs for missing actuals - [`KT-76829`](https://youtrack.jetbrains.com/issue/KT-76829) UnsupportedOperationException when reenabling a taking place warning with -Xwarning-level - [`KT-75588`](https://youtrack.jetbrains.com/issue/KT-75588) \[2.1.20-RC] "was compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" warnings despite using the same compiler version - [`KT-74663`](https://youtrack.jetbrains.com/issue/KT-74663) kotlinc-js CLI: not providing -ir-output-dir results in NullPointerException - [`KT-75967`](https://youtrack.jetbrains.com/issue/KT-75967) Implement generation of CLI arguments in compiler using new single representation - [`KT-75966`](https://youtrack.jetbrains.com/issue/KT-75966) Declare all existing CLI arguments using the new DSL - [`KT-76498`](https://youtrack.jetbrains.com/issue/KT-76498) Implement JSON dumper for performance stats - [`KT-75970`](https://youtrack.jetbrains.com/issue/KT-75970) Extract all non-trivial logic from `CommonCompilerArguments` and its inheritors - [`KT-73595`](https://youtrack.jetbrains.com/issue/KT-73595) Kapt.use.k2=true is ignored silently for language-version 1.9 or less - [`KT-75043`](https://youtrack.jetbrains.com/issue/KT-75043) Migrate Metadata compilation pipeline to the phased structure - [`KT-75113`](https://youtrack.jetbrains.com/issue/KT-75113) TEST\_ONLY LanguageFeature doesn't abort the compilation ##### Tools. CLI. Native - [`KT-69485`](https://youtrack.jetbrains.com/issue/KT-69485) Native: remove adding $llvmDir\bin to PATH on Windows ##### Tools. Commonizer - [`KT-74623`](https://youtrack.jetbrains.com/issue/KT-74623) Drop metadata version check from KLIB commonizer ##### Tools. Compiler Plugin API - [`KT-74640`](https://youtrack.jetbrains.com/issue/KT-74640) \[FIR] Support setting `source` in declaration generators ##### Tools. Compiler Plugins ##### Fixes - [`KT-76162`](https://youtrack.jetbrains.com/issue/KT-76162) "IllegalStateException: No mapping for symbol: VALUE\_PARAMETER INSTANCE\_RECEIVER" after updating to 2.1.20 - [`KT-61584`](https://youtrack.jetbrains.com/issue/KT-61584) \[atomicfu]: prohibit declaration of AtomicReference to the value class in the compiler plugin - [`KT-70982`](https://youtrack.jetbrains.com/issue/KT-70982) Deprecate declaration of atomic properties marked with `@PublishedApi` with error - [`KT-73367`](https://youtrack.jetbrains.com/issue/KT-73367) Migrate compose plugin to new IR parameter API - [`KT-76429`](https://youtrack.jetbrains.com/issue/KT-76429) Migrate kotlin-dataframe plugin to new IR parameter API - [`KT-75263`](https://youtrack.jetbrains.com/issue/KT-75263) PowerAssert: no additional info is displayed for 'when' with subject - [`KT-75614`](https://youtrack.jetbrains.com/issue/KT-75614) PowerAssert: handling of exceptions doesn't work inside assert function - [`KT-75264`](https://youtrack.jetbrains.com/issue/KT-75264) PowerAssert: the diagram for try-catch with boolean expressions isn't clear - [`KT-75663`](https://youtrack.jetbrains.com/issue/KT-75663) PowerAssert: 'contains' result for strings is displayed under the first parameter instead of 'in' - [`KT-73897`](https://youtrack.jetbrains.com/issue/KT-73897) PowerAssert: Implicit argument detection is brittle in a number of cases - [`KT-74315`](https://youtrack.jetbrains.com/issue/KT-74315) Kotlin Lombok: "Unresolved reference" on generating `@Builder` for static inner class where outer class is also using `@Builder` - [`KT-72172`](https://youtrack.jetbrains.com/issue/KT-72172) File Leak occurring in Kotlin Daemon - [`KT-75159`](https://youtrack.jetbrains.com/issue/KT-75159) Compose: Missing 'FunctionKeyMeta' annotation on lamdas declared in non-composable function - [`KT-72877`](https://youtrack.jetbrains.com/issue/KT-72877) Power-Assert should provide IrExpression transformation API - [`KT-73871`](https://youtrack.jetbrains.com/issue/KT-73871) PowerAssert: Comparison via operator overload results in confusing diagram - [`KT-73898`](https://youtrack.jetbrains.com/issue/KT-73898) PowerAssert: Operator calls with multiple receivers incorrectly aligned - [`KT-73870`](https://youtrack.jetbrains.com/issue/KT-73870) PowerAssert: Object should not be displayed ##### Tools. Compiler plugins. Serialization - [`KT-49632`](https://youtrack.jetbrains.com/issue/KT-49632) Provide diagnostic when custom serializer for generic type does not have required constructor signature ( ISE Null argument in ExpressionCodegen for parameter VALUE\_PARAMETER) ##### Tools. Gradle ##### New Features - [`KT-75823`](https://youtrack.jetbrains.com/issue/KT-75823) Resources bundle with XCFrameworks for iOS - [`KT-73418`](https://youtrack.jetbrains.com/issue/KT-73418) Gradle '--warning-mode' value should affect Gradle plugin diagnostics - [`KT-73906`](https://youtrack.jetbrains.com/issue/KT-73906) Improve ToolingDiagnostic CLI rendering - [`KT-73285`](https://youtrack.jetbrains.com/issue/KT-73285) Integrate Gradle Problem API with KGP diagnostics - [`KT-61649`](https://youtrack.jetbrains.com/issue/KT-61649) Add Gradle compiler option for jvm-default - [`KT-68659`](https://youtrack.jetbrains.com/issue/KT-68659) Collect reported Kotlin Gradle Plugin diagnostics into one HTML/Text file report instead of writing it to log ##### Fixes - [`KT-75188`](https://youtrack.jetbrains.com/issue/KT-75188) Groovy plugin breaks access to internal members of test friendPaths classes in kotlin compilation - [`KT-54110`](https://youtrack.jetbrains.com/issue/KT-54110) Change deprecation level to ERROR for kotlinOptions DSL - [`KT-74277`](https://youtrack.jetbrains.com/issue/KT-74277) KGP / FreeBSD: "TargetSupportException: Unknown operating system: FreeBSD" during the build - [`KT-75820`](https://youtrack.jetbrains.com/issue/KT-75820) Gradle: "ClassNotFoundException: intellij.util.containers.Stack" while parsing compilation warnings with IN\_PROCESS execution strategy - [`KT-64991`](https://youtrack.jetbrains.com/issue/KT-64991) Change deprecation level to error for KotlinCompilation.source - [`KT-75107`](https://youtrack.jetbrains.com/issue/KT-75107) Add Gradle property to use new FIR IC runner - [`KT-66133`](https://youtrack.jetbrains.com/issue/KT-66133) Finalize resolution strategy for resources and remove the one that is unused - [`KT-59632`](https://youtrack.jetbrains.com/issue/KT-59632) KotlinCompileTool.setSource() should replace existing sources - [`KT-62963`](https://youtrack.jetbrains.com/issue/KT-62963) Remove "kotlin.incremental.useClasspathSnapshot" property - [`KT-76137`](https://youtrack.jetbrains.com/issue/KT-76137) Compatibility with Gradle 8.14 release - [`KT-76797`](https://youtrack.jetbrains.com/issue/KT-76797) KGP: StdlibDependencyManagementKt.configureStdlibVersionAlignment() triggering eager configuration realization - [`KT-76282`](https://youtrack.jetbrains.com/issue/KT-76282) Add missing Android Gradle plugin versions in tests - [`KT-77011`](https://youtrack.jetbrains.com/issue/KT-77011) Update build regression benchmarks for 2.2.0 release - [`KT-76138`](https://youtrack.jetbrains.com/issue/KT-76138) Compile against Gradle API 8.14 - [`KT-76139`](https://youtrack.jetbrains.com/issue/KT-76139) Run integration tests against Gradle 8.14 - [`KT-74007`](https://youtrack.jetbrains.com/issue/KT-74007) Not all the DSL features related to kotlinOptions are deprecated - [`KT-77288`](https://youtrack.jetbrains.com/issue/KT-77288) Using 'KotlinJvmOptions' is an error - Gradle sync issue when using 2.2.0-Beta2 with Android Gradle Plugin - [`KT-74887`](https://youtrack.jetbrains.com/issue/KT-74887) Compatibility with Gradle 8.13 release - [`KT-73682`](https://youtrack.jetbrains.com/issue/KT-73682) Compatibility with Gradle 8.12 release - [`KT-77035`](https://youtrack.jetbrains.com/issue/KT-77035) A compiler diagnostic isn't reported when its severity is set to warning with Gradle - [`KT-70620`](https://youtrack.jetbrains.com/issue/KT-70620) Raise to error deprecation for KotlinCompilationOutput#resourcesDirProvider - [`KT-68597`](https://youtrack.jetbrains.com/issue/KT-68597) Update KGP deprecations before 2.2 - [`KT-68325`](https://youtrack.jetbrains.com/issue/KT-68325) Add to Compiler Types DSL exceptions message possible ways of a solution - [`KT-76951`](https://youtrack.jetbrains.com/issue/KT-76951) 'distribution-base' plugin is only applied in Gradle 8.13 - [`KT-73142`](https://youtrack.jetbrains.com/issue/KT-73142) Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder - [`KT-73968`](https://youtrack.jetbrains.com/issue/KT-73968) KotlinDependencyManagement tries to mutate configuration after it was resolved - [`KT-74890`](https://youtrack.jetbrains.com/issue/KT-74890) Run Gradle integrations test against Gradle 8.13 release - [`KT-74889`](https://youtrack.jetbrains.com/issue/KT-74889) Compile against Gradle 8.13 API - [`KT-76052`](https://youtrack.jetbrains.com/issue/KT-76052) Support Gradle 8.13 for Problems API - [`KT-73684`](https://youtrack.jetbrains.com/issue/KT-73684) Run integration tests against Gradle 8.12 - [`KT-76377`](https://youtrack.jetbrains.com/issue/KT-76377) Add integration tests for Problems API - [`KT-74551`](https://youtrack.jetbrains.com/issue/KT-74551) Improve KGP-IT withDebug for tests with environment variables - [`KT-74717`](https://youtrack.jetbrains.com/issue/KT-74717) Test publication with dependency constraints - [`KT-75164`](https://youtrack.jetbrains.com/issue/KT-75164) Run Gradle incremental compilation tests with FIR runner - [`KT-72694`](https://youtrack.jetbrains.com/issue/KT-72694) Accessing Task.project during execution is being deprecated in Gradle 8.12 - [`KT-76374`](https://youtrack.jetbrains.com/issue/KT-76374) Investigate and fix failing tests with configuration cache in KotlinDaemonIT: testDaemonMultiproject and testMultipleCompilations - [`KT-76379`](https://youtrack.jetbrains.com/issue/KT-76379) Gradle: KotlinGradleFinishBuildHandler does not perform cleanup on configuration cache reuse - [`KT-61911`](https://youtrack.jetbrains.com/issue/KT-61911) Gradle: make KGP to depend on fixated version of stdlib - [`KT-76026`](https://youtrack.jetbrains.com/issue/KT-76026) \[ToolingDiagnostic] Gradle warning mode=fail: no emoji replacement, title color unchanged - [`KT-76025`](https://youtrack.jetbrains.com/issue/KT-76025) ToolingDiagnostic with FATAL Severity: ANSI escape codes are not rendered properly in the Build tool window in IntelliJ IDEA - [`KT-70252`](https://youtrack.jetbrains.com/issue/KT-70252) Gradle: remove Intellij dependencies from KGP runtime - [`KT-74333`](https://youtrack.jetbrains.com/issue/KT-74333) improve ToolingDiagnosticBuilder - [`KT-73683`](https://youtrack.jetbrains.com/issue/KT-73683) Compile against Gradle API 8.12 - [`KT-75187`](https://youtrack.jetbrains.com/issue/KT-75187) Make KotlinToolingDiagnostics internal - [`KT-75568`](https://youtrack.jetbrains.com/issue/KT-75568) Do not use env variables registered as CC inputs - [`KT-73842`](https://youtrack.jetbrains.com/issue/KT-73842) Gradle: AGP failing tests with "Failed to calculate the value of property 'generalConfigurationMetrics'" using KGP - [`KT-75262`](https://youtrack.jetbrains.com/issue/KT-75262) Gradle test-fixtures plugin apply order breaks the project - [`KT-75277`](https://youtrack.jetbrains.com/issue/KT-75277) FUS statistics: 'java.lang.IllegalStateException: The value for this property cannot be changed any further' exception is thrown during project import - [`KT-75026`](https://youtrack.jetbrains.com/issue/KT-75026) Corrupted NonSynchronizedMetricsContainer in parallel Gradle build - [`KT-73849`](https://youtrack.jetbrains.com/issue/KT-73849) Categorize ToolingDiagnostics - [`KT-74462`](https://youtrack.jetbrains.com/issue/KT-74462) Flaky Kotlin Gradle Plugin Tests: IsInIdeaEnvironmentValueSource$Inject not found - [`KT-72329`](https://youtrack.jetbrains.com/issue/KT-72329) Consider bumping apiVersion for projects with compatibility setup - [`KT-74772`](https://youtrack.jetbrains.com/issue/KT-74772) ToolingDiagnostic: title is not displayed on Windows - [`KT-74485`](https://youtrack.jetbrains.com/issue/KT-74485) BuildFinishedListenerService is not thread-safe - [`KT-74639`](https://youtrack.jetbrains.com/issue/KT-74639) Executable binaries for JVM test cannot be created unless an additional suffix is set in Groovy - [`KT-72187`](https://youtrack.jetbrains.com/issue/KT-72187) Gradle tests are using incorrect Kotlin/Native distribution - [`KT-57653`](https://youtrack.jetbrains.com/issue/KT-57653) Explicit API mode is not enabled when free compiler arguments are specified in Gradle project - [`KT-51378`](https://youtrack.jetbrains.com/issue/KT-51378) Gradle 'buildSrc' compilation fails when newer version of Kotlin plugin is added to the build script classpath ##### Tools. Gradle. Compiler plugins - [`KT-58009`](https://youtrack.jetbrains.com/issue/KT-58009) `BaseKapt.annotationProcessorOptionProviders` should be a `List<CommandLineArgumentProvider>` instead of `List<Any>` - [`KT-61928`](https://youtrack.jetbrains.com/issue/KT-61928) Clarify parameter types in KaptArguments and KaptJavacOption ##### Tools. Gradle. JS - [`KT-74859`](https://youtrack.jetbrains.com/issue/KT-74859) Gradle configuration cache issues related to RootPackageJsonTask - [`KT-70357`](https://youtrack.jetbrains.com/issue/KT-70357) Remove JS/Dce deprecated Gradle DSL - [`KT-71217`](https://youtrack.jetbrains.com/issue/KT-71217) KJS: 'Per-file' "Module not found: Error: Can't resolve void.mjs" - [`KT-77119`](https://youtrack.jetbrains.com/issue/KT-77119) KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works - [`KT-74735`](https://youtrack.jetbrains.com/issue/KT-74735) KGP uses Gradle internal `CompositeProjectComponentArtifactMetadata` - [`KT-71879`](https://youtrack.jetbrains.com/issue/KT-71879) Notice of upcoming deprecation for Boolean 'is-' properties in Gradle Groovy scripts - [`KT-75863`](https://youtrack.jetbrains.com/issue/KT-75863) Wasm/JS: Deprecate phantom-js for Karma - [`KT-75485`](https://youtrack.jetbrains.com/issue/KT-75485) KJS: "Module not found: Error: Can't resolve 'style-loader' and 'css-loader'" in 2.1.20-RC - [`KT-74869`](https://youtrack.jetbrains.com/issue/KT-74869) KJS: `jsBrowserProductionWebpack` does not minify output with 2.1.20-Beta2 ##### Tools. Gradle. Multiplatform ##### New Features - [`KT-60623`](https://youtrack.jetbrains.com/issue/KT-60623) Deprecate `publishAllLibraryVariants` in kotlin-android ##### Fixes - [`KT-75161`](https://youtrack.jetbrains.com/issue/KT-75161) Deprecate commonization parameters in KGP with an error - [`KT-74005`](https://youtrack.jetbrains.com/issue/KT-74005) Implement a prototype of Unified Klib support in Kotlin Gradle Plugin - [`KT-61817`](https://youtrack.jetbrains.com/issue/KT-61817) Remove support for Legacy Metadata Compilation with support of Compatibility Metadata Variant - [`KT-71634`](https://youtrack.jetbrains.com/issue/KT-71634) KGP: Remove KotlinTarget.useDisambiguationClassifierAsSourceSetNamePrefix and overrideDisambiguationClassifierOnIdeImport - [`KT-77404`](https://youtrack.jetbrains.com/issue/KT-77404) The kotlin-stdlib and annotations are missing from commonTest dependencies with 2.2.0-Beta1 - [`KT-62643`](https://youtrack.jetbrains.com/issue/KT-62643) Increase DeprecationLevel to 'Error' on deprecated 'ExtrasProperty.kt' (Kotlin 2.2) - [`KT-75605`](https://youtrack.jetbrains.com/issue/KT-75605) Dependency resolution fails in commonTest/nativeTest source sets for KMP module when depending on another project due to missing PSM - [`KT-71698`](https://youtrack.jetbrains.com/issue/KT-71698) Remove preset APIs - [`KT-68015`](https://youtrack.jetbrains.com/issue/KT-68015) Remove legacy KMP flags - [`KT-74727`](https://youtrack.jetbrains.com/issue/KT-74727) Dependency resolve from a single target KMP module to another kmp module fails on non-found PSM - [`KT-75808`](https://youtrack.jetbrains.com/issue/KT-75808) KGP: MPP with jvm target and Gradle java-test-fixtures is broken - [`KT-59315`](https://youtrack.jetbrains.com/issue/KT-59315) Improve the readability of KGP diagnostics in CLI build output - [`KT-58231`](https://youtrack.jetbrains.com/issue/KT-58231) Kotlin Gradle Plugin: set deprecation level to Error for KotlinTarget.useDisambiguationClassifierAsSourceSetNamePrefix and overrideDisambiguationClassifierOnIdeImport - [`KT-66423`](https://youtrack.jetbrains.com/issue/KT-66423) Configuration cache false recalculation because of Kotlin Native downloading during the execution phase - [`KT-74888`](https://youtrack.jetbrains.com/issue/KT-74888) Use 'distribution-base' plugin in KMP/JVM - [`KT-76659`](https://youtrack.jetbrains.com/issue/KT-76659) Write proper diagnostics for Uklib checks - [`KT-70493`](https://youtrack.jetbrains.com/issue/KT-70493) Improve gray-box testing experience in KGP-IT - [`KT-71608`](https://youtrack.jetbrains.com/issue/KT-71608) Remove 'android()' target - [`KT-75512`](https://youtrack.jetbrains.com/issue/KT-75512) Maven-publish: ArtifactId is not correct in`pom` file with customized `withXml` - [`KT-72203`](https://youtrack.jetbrains.com/issue/KT-72203) Swift Export: Unclear failure for invalid module name - [`KT-74278`](https://youtrack.jetbrains.com/issue/KT-74278) KSP tasks don't trigger a K/N distribution downloading - [`KT-74669`](https://youtrack.jetbrains.com/issue/KT-74669) Executable binaries for JVM: a jar generated by jvmJar task isn't added to the build/install/testAppName/lib directory - [`KT-69200`](https://youtrack.jetbrains.com/issue/KT-69200) Module 'intellij.kotlin.gradle.multiplatformTests' transitively depends on K1/K2 implementation - [`KT-71454`](https://youtrack.jetbrains.com/issue/KT-71454) Remove not compatible with Project Isolation PomDependenciesRewriter - [`KT-73536`](https://youtrack.jetbrains.com/issue/KT-73536) Enable kmp isolated projects support for kotlin-test and patch PSM.json ##### Tools. Gradle. Native - [`KT-77067`](https://youtrack.jetbrains.com/issue/KT-77067) Kotlin Gradle plugin with the configuration cache passes all platform libraries to the compiler when compiling a binary for the first time - [`KT-74953`](https://youtrack.jetbrains.com/issue/KT-74953) Deprecate kotlinArtifacts with a warning - [`KT-71069`](https://youtrack.jetbrains.com/issue/KT-71069) Remove `konanVersion ` from CInteropProcess - [`KT-75171`](https://youtrack.jetbrains.com/issue/KT-75171) Provide custom freeCompilerArgs to Swift Export's link task - [`KT-74591`](https://youtrack.jetbrains.com/issue/KT-74591) HostManager.isMingw isLinux and isMac are not accessible in groovy scripts - [`KT-65692`](https://youtrack.jetbrains.com/issue/KT-65692) Remove Kotlin Native Performance plugin - [`KT-74403`](https://youtrack.jetbrains.com/issue/KT-74403) :commonizeNativeDistribution fails when configured native targets cannot be built on machine ##### Tools. Gradle. Xcode - [`KT-66262`](https://youtrack.jetbrains.com/issue/KT-66262) Deprecate and remove support for bitcode embedding from the Kotlin Gradle plugin ##### Tools. Incremental Compile - [`KT-62555`](https://youtrack.jetbrains.com/issue/KT-62555) Wrong ABI fingerprint for inline function containing a lambda - [`KT-75883`](https://youtrack.jetbrains.com/issue/KT-75883) Follow-up: switch from INSTANCE heuristic to outerClass chain - [`KT-75276`](https://youtrack.jetbrains.com/issue/KT-75276) Test IC issues with first-round failures that might be fixed by Fir runner - [`KT-76041`](https://youtrack.jetbrains.com/issue/KT-76041) Make lenient mode work with IC - [`KT-75155`](https://youtrack.jetbrains.com/issue/KT-75155) Split HistoryFileJvmIncrementalCompilerRunner and the current one - [`KT-74628`](https://youtrack.jetbrains.com/issue/KT-74628) Incremental compilation runner does not check compiler exit code before mapping sources to classes ##### Tools. JPS - [`KT-60914`](https://youtrack.jetbrains.com/issue/KT-60914) IC misses dependency to recompile when named kt file with JvmField instructed property was replaced with an object with the same name - [`KT-76495`](https://youtrack.jetbrains.com/issue/KT-76495) JPS: delegated Maven builds use embeddable version of kotlin-serialization compiler plugin with non-embeddable Kotlin compiler - [`KT-76461`](https://youtrack.jetbrains.com/issue/KT-76461) Fix "compilation of typealias does not check for clashes" for JPS - [`KT-75917`](https://youtrack.jetbrains.com/issue/KT-75917) Unused imports may lead to inc compilation failure - [`KT-73379`](https://youtrack.jetbrains.com/issue/KT-73379) Review the usage of JavaBuilder.IS\_ENABLED inside the KotlinBuilder JSP builder - [`KT-63707`](https://youtrack.jetbrains.com/issue/KT-63707) JPS: "Multiple values are not allowed for" caused by Compose ##### Tools. Kapt - [`KT-75936`](https://youtrack.jetbrains.com/issue/KT-75936) K2 KAPT: unsupported FIR element kinds in constant evaluation - [`KT-64385`](https://youtrack.jetbrains.com/issue/KT-64385) K2: Enable K2 KAPT by default - [`KT-76546`](https://youtrack.jetbrains.com/issue/KT-76546) Kapt / CLI: ""compile" mode is not supported in Kotlin 2.x" with -version flag - [`KT-75942`](https://youtrack.jetbrains.com/issue/KT-75942) K2 KAPT: underscore not allowed here - [`KT-40485`](https://youtrack.jetbrains.com/issue/KT-40485) -Xjvm-default=all causes private interface methods to be generated in JVM target < 9 which is not supported in annotation processing - [`KT-75202`](https://youtrack.jetbrains.com/issue/KT-75202) K2 kapt: mapped type class literal is converted incorrectly - [`KT-70797`](https://youtrack.jetbrains.com/issue/KT-70797) Remove obsolete K2 kapt implementation based on Analysis API ##### Tools. Maven - [`KT-73012`](https://youtrack.jetbrains.com/issue/KT-73012) Migrate Kotlin Maven plugin to the Build Tools API - [`KT-77036`](https://youtrack.jetbrains.com/issue/KT-77036) Kotlin Maven plugin: ClassNotFoundException com.google.common.base.Joiner with compiler plugins in debug mode - [`KT-61285`](https://youtrack.jetbrains.com/issue/KT-61285) Remove multiplatform "support" from Maven Plugin ##### Tools. Performance benchmarks - [`KT-75563`](https://youtrack.jetbrains.com/issue/KT-75563) Fix crash on kotlin compiler server user project related to performance measurements ##### Tools. REPL ##### Fixes - [`KT-75632`](https://youtrack.jetbrains.com/issue/KT-75632) Contunue deprecation of the REPL built into `kotlinc` - [`KT-76507`](https://youtrack.jetbrains.com/issue/KT-76507) \[K2 Repl] Delegated properties are not visible in the next snippet - [`KT-76508`](https://youtrack.jetbrains.com/issue/KT-76508) \[K2 Repl] Annotations on property accessors are not resolved - [`KT-75672`](https://youtrack.jetbrains.com/issue/KT-75672) \[K2 Repl] Serialization plugin crashes compiler backend - [`KT-76009`](https://youtrack.jetbrains.com/issue/KT-76009) \[K2 Repl] Kotlin-specific imports does not work if dependency is added to the classpath after 1st snippet - [`KT-75580`](https://youtrack.jetbrains.com/issue/KT-75580) \[K2 Repl] Cannot access snippet properties using Kotlin reflection - [`KT-75616`](https://youtrack.jetbrains.com/issue/KT-75616) \[K2 Repl] Sealed hierarchies causes a FileAnalysisException - [`KT-75593`](https://youtrack.jetbrains.com/issue/KT-75593) \[K2 Repl] Custom Delegates crash code gen - [`KT-75607`](https://youtrack.jetbrains.com/issue/KT-75607) \[K2 Repl] ScriptingConfiguration.jvm.jvmTarget is not respected - [`KT-74607`](https://youtrack.jetbrains.com/issue/KT-74607) \[K2 Repl] Lambda statement crashes code generation - [`KT-74615`](https://youtrack.jetbrains.com/issue/KT-74615) \[K2 REPL] Anonymous objects crash code generation - [`KT-74856`](https://youtrack.jetbrains.com/issue/KT-74856) \[K2 Repl] Snippet class files are missing Kotlin metadata - [`KT-74768`](https://youtrack.jetbrains.com/issue/KT-74768) \[K2 Repl] refineConfiguration does not update the classpath correctly - [`KT-74593`](https://youtrack.jetbrains.com/issue/KT-74593) \[K2 Repl] defaultImports does not work in ScriptCompilationConfiguration ##### Tools. Scripts - [`KT-75589`](https://youtrack.jetbrains.com/issue/KT-75589) Scripts: "IndexOutOfBoundsException in jdk.internal.util.Preconditions.outOfBounds" when trying to extend a class which uses global variable - [`KT-76424`](https://youtrack.jetbrains.com/issue/KT-76424) Dependencies in main.kts not working with 2.1.20 - [`KT-76296`](https://youtrack.jetbrains.com/issue/KT-76296) Kotlin script compiler crashes when secondary constructor calls a function - [`KT-76430`](https://youtrack.jetbrains.com/issue/KT-76430) Migrate scripting plugin to new IR parameter API - [`KT-74004`](https://youtrack.jetbrains.com/issue/KT-74004) "Evaluate expression" fails in scripts ##### Tools. Wasm - [`KT-76161`](https://youtrack.jetbrains.com/issue/KT-76161) Wasm: "export startUnitTests was not found" after updating to Kotlin 2.1.20 - [`KT-73398`](https://youtrack.jetbrains.com/issue/KT-73398) K/Wasm: Separate from JS NPM infrastructure - [`KT-76948`](https://youtrack.jetbrains.com/issue/KT-76948) Wasm: Rename kotlinBinaryenSetup and kotlinD8Setup - [`KT-74840`](https://youtrack.jetbrains.com/issue/KT-74840) Wasm: Binaryen setup per project - [`KT-76657`](https://youtrack.jetbrains.com/issue/KT-76657) K/Wasm: Composite build does not work with wasm tasks - [`KT-76656`](https://youtrack.jetbrains.com/issue/KT-76656) K/Wasm: Change NPM project name of wasm projects - [`KT-76587`](https://youtrack.jetbrains.com/issue/KT-76587) Wasm lock check failure says to run the JS lock upgrade - [`KT-76330`](https://youtrack.jetbrains.com/issue/KT-76330) K/Wasm: update binaryen to 123 or newer - [`KT-74480`](https://youtrack.jetbrains.com/issue/KT-74480) Projects using Compose don't run in Android Studio started from 2.1.20- Kotlin version ### [`v2.1.21`](https://github.com/JetBrains/kotlin/releases/tag/v2.1.21): Kotlin 2.1.21 ##### Changelog ##### Backend. Native. Debug - [`KT-75991`](https://youtrack.jetbrains.com/issue/KT-75991) Xcode 16.3: Fix lldb stepping test over an inline function ##### Compiler - [`KT-75992`](https://youtrack.jetbrains.com/issue/KT-75992) Xcode 16.3: stacktraces on simulators are not symbolicated - [`KT-76663`](https://youtrack.jetbrains.com/issue/KT-76663) KJS: KotlinNothingValueException caused by expression return since 2.1.20 - [`KT-75756`](https://youtrack.jetbrains.com/issue/KT-75756) Backend Internal error: Exception during IR lowering when trying to access variable from providedProperties in class within kotlin custom script - [`KT-76209`](https://youtrack.jetbrains.com/issue/KT-76209) CONFLICTING\_UPPER\_BOUNDS on `Nothing` bound - [`KT-70352`](https://youtrack.jetbrains.com/issue/KT-70352) K2: False-negative CONFLICTING\_UPPER\_BOUNDS on `Nothing` bound - [`KT-74739`](https://youtrack.jetbrains.com/issue/KT-74739) Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION\_REFERENCE" - [`KT-75483`](https://youtrack.jetbrains.com/issue/KT-75483) Native: redundant unboxing generated with smart cast - [`KT-71425`](https://youtrack.jetbrains.com/issue/KT-71425) IR Inliner: investigate return type of an inlined block ##### Native - [`KT-76252`](https://youtrack.jetbrains.com/issue/KT-76252) Native: executable crash with generic value classes with 2.1.20 ##### Native. C and ObjC Import - [`KT-75781`](https://youtrack.jetbrains.com/issue/KT-75781) Xcode 16.3: Fix cinterop tests failing with fatal error: could not build module '\_stdint' ##### Native. Runtime. Memory - [`KT-74280`](https://youtrack.jetbrains.com/issue/KT-74280) Native: GC.collect crashes with -Xallocator=std ##### Tools. CLI - [`KT-75588`](https://youtrack.jetbrains.com/issue/KT-75588) \[2.1.20-RC] "was compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" warnings despite using the same compiler version - [`KT-74663`](https://youtrack.jetbrains.com/issue/KT-74663) kotlinc-js CLI: not providing -ir-output-dir results in NullPointerException ##### Tools. Compiler Plugins - [`KT-76162`](https://youtrack.jetbrains.com/issue/KT-76162) "IllegalStateException: No mapping for symbol: VALUE\_PARAMETER INSTANCE\_RECEIVER" after updating to 2.1.20 ##### Tools. Gradle - [`KT-73682`](https://youtrack.jetbrains.com/issue/KT-73682) Compatibility with Gradle 8.12 release - [`KT-73142`](https://youtrack.jetbrains.com/issue/KT-73142) Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder - [`KT-36004`](https://youtrack.jetbrains.com/issue/KT-36004) Update 'org.gradle.usage' attribute rules to support the 'JAVA\_API' and 'JAVA\_RUNTIME' value - [`KT-73968`](https://youtrack.jetbrains.com/issue/KT-73968) KotlinDependencyManagement tries to mutate configuration after it was resolved - [`KT-73684`](https://youtrack.jetbrains.com/issue/KT-73684) Run integration tests against Gradle 8.12 - [`KT-72694`](https://youtrack.jetbrains.com/issue/KT-72694) Accessing Task.project during execution is being deprecated in Gradle 8.12 - [`KT-73683`](https://youtrack.jetbrains.com/issue/KT-73683) Compile against Gradle API 8.12 ##### Tools. Gradle. JS - [`KT-77119`](https://youtrack.jetbrains.com/issue/KT-77119) KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works - [`KT-74735`](https://youtrack.jetbrains.com/issue/KT-74735) KGP uses Gradle internal `CompositeProjectComponentArtifactMetadata` - [`KT-71879`](https://youtrack.jetbrains.com/issue/KT-71879) Notice of upcoming deprecation for Boolean 'is-' properties in Gradle Groovy scripts ##### Tools. Gradle. Multiplatform - [`KT-75808`](https://youtrack.jetbrains.com/issue/KT-75808) KGP: MPP with jvm target and Gradle java-test-fixtures is broken - [`KT-75605`](https://youtrack.jetbrains.com/issue/KT-75605) Dependency resolution fails in commonTest/nativeTest source sets for KMP module when depending on another project due to missing PSM - [`KT-75512`](https://youtrack.jetbrains.com/issue/KT-75512) Maven-publish: ArtifactId is not correct in`pom` file with customized `withXml` ##### Tools. Incremental Compile - [`KT-62555`](https://youtrack.jetbrains.com/issue/KT-62555) Wrong ABI fingerprint for inline function containing a lambda - [`KT-75883`](https://youtrack.jetbrains.com/issue/KT-75883) Follow-up: switch from INSTANCE heuristic to outerClass chain ##### Tools. Kapt - [`KT-75936`](https://youtrack.jetbrains.com/issue/KT-75936) K2 KAPT: unsupported FIR element kinds in constant evaluation - [`KT-75942`](https://youtrack.jetbrains.com/issue/KT-75942) K2 KAPT: underscore not allowed here ##### Tools. Scripts - [`KT-76424`](https://youtrack.jetbrains.com/issue/KT-76424) Dependencies in main.kts not working with 2.1.20 - [`KT-76296`](https://youtrack.jetbrains.com/issue/KT-76296) Kotlin script compiler crashes when secondary constructor calls a function - [`KT-75589`](https://youtrack.jetbrains.com/issue/KT-75589) Scripts: "IndexOutOfBoundsException in jdk.internal.util.Preconditions.outOfBounds" when trying to extend a class which uses global variable ##### Tools. Wasm - [`KT-76161`](https://youtrack.jetbrains.com/issue/KT-76161) Wasm: "export startUnitTests was not found" after updating to Kotlin 2.1.20 ### [`v2.1.20`](https://github.com/JetBrains/kotlin/releases/tag/v2.1.20): Kotlin 2.1.20 ##### Changelog ##### Analysis API ##### Fixes - [`KT-68198`](https://youtrack.jetbrains.com/issue/KT-68198) Analysis API: Support application service registration in plugin XMLs - [`KT-57733`](https://youtrack.jetbrains.com/issue/KT-57733) Analysis API: Use optimized `ModuleWithDependenciesScope`s in combined symbol providers - [`KT-73156`](https://youtrack.jetbrains.com/issue/KT-73156) AA: type retrieval for erroneous typealias crashes - [`KT-71907`](https://youtrack.jetbrains.com/issue/KT-71907) K2 debugger evaluator failed when cannot resolve unrelated annotation - [`KT-69128`](https://youtrack.jetbrains.com/issue/KT-69128) K2 IDE: "Unresolved reference in KDoc" reports existing Java class in reference to its own nested class - [`KT-71613`](https://youtrack.jetbrains.com/issue/KT-71613) KaFirPsiJavaTypeParameterSymbol cannot be cast to KaFirTypeParameterSymbol - [`KT-71741`](https://youtrack.jetbrains.com/issue/KT-71741) K2 IDE. Classifier was found in KtFile but was not found in FirFile in `libraries/tools/kotlin-gradle-plugin-integration-tests/build.gradle.kts` in `kotlin.git` and broken analysis - [`KT-71942`](https://youtrack.jetbrains.com/issue/KT-71942) Need to rethrow Intellij Platform exceptions, like ProcessCanceledException - [`KT-70949`](https://youtrack.jetbrains.com/issue/KT-70949) Analysis API: "containingDeclaration" does not work on nested Java classes in K2 implementation - [`KT-69736`](https://youtrack.jetbrains.com/issue/KT-69736) K2 IDE: False positive resolution from KDoc for `value` - [`KT-69047`](https://youtrack.jetbrains.com/issue/KT-69047) Analysis API: Unresolved KDoc reference to extensions with the same name - [`KT-70815`](https://youtrack.jetbrains.com/issue/KT-70815) Analysis API: Implement stop-the-world session invalidation - [`KT-69630`](https://youtrack.jetbrains.com/issue/KT-69630) KAPT User project builds with KAPT4 enabled fail with Metaspace overflow ##### Analysis API. Code Compilation - [`KT-71263`](https://youtrack.jetbrains.com/issue/KT-71263) K2 evaluator: Error in evaluating self property with extension receiver ##### Analysis API. FIR ##### Performance Improvements - [`KT-72025`](https://youtrack.jetbrains.com/issue/KT-72025) FileStructureElement: reduce redundant resolve - [`KT-74012`](https://youtrack.jetbrains.com/issue/KT-74012) Redundant `FirAbstractBodyResolveTransformerDispatcher.<init>` CPU consumption - [`KT-73900`](https://youtrack.jetbrains.com/issue/KT-73900) ContextCollectorVisitor#computeContext may spend significant time on `createSnapshot` - [`KT-73665`](https://youtrack.jetbrains.com/issue/KT-73665) FirElementFinder is inefficient in large files - [`KT-73330`](https://youtrack.jetbrains.com/issue/KT-73330) Remove bodies from functions without contracts after the CONTRACTS phase - [`KT-73017`](https://youtrack.jetbrains.com/issue/KT-73017) Analysis API: `FirReferenceResolveHelper.getSymbolsByResolvedImport` searches for classes even when the selected `FqName` is a known package ##### Fixes - [`KT-72308`](https://youtrack.jetbrains.com/issue/KT-72308) getOrBuildFir returns null for this expression for plusAssign operator - [`KT-72660`](https://youtrack.jetbrains.com/issue/KT-72660) ISE: Recursive update at org.jetbrains.kotlin.analysis.low\.level.api.fir.caches.FirCaffeineCache.getValue - [`KT-74097`](https://youtrack.jetbrains.com/issue/KT-74097) ISE: Recursive update at org.jetbrains.kotlin.analysis.low\.level.api.fir.caches.FirCaffeineCache.getValue - [`KT-74098`](https://youtrack.jetbrains.com/issue/KT-74098) ISE: Recursive update at org.jetbrains.kotlin.analysis.low\.level.api.fir.caches.FirCaffeineCache.getValue - [`KT-72148`](https://youtrack.jetbrains.com/issue/KT-72148) K2: KISEWA: Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirValueParameterImpl(DataClassMember) but FirArgumentListImpl found - [`KT-73079`](https://youtrack.jetbrains.com/issue/KT-73079) K2: Internal compiler error when conflicting type aliases are present - [`KT-73456`](https://youtrack.jetbrains.com/issue/KT-73456) Expected FirResolvedContractDescription but FirRawContractDescriptionImpl found for FirSimpleFunctionImpl - [`KT-73259`](https://youtrack.jetbrains.com/issue/KT-73259) Expected FirResolvedContractDescription but FirLegacyRawContractDescriptionImpl found for FirSimpleFunctionImpl - [`KT-72740`](https://youtrack.jetbrains.com/issue/KT-72740) FirDanglingModifierList: `lazyResolveToPhase(STATUS)` cannot be called from a transformer with a phase STATUS - [`KT-66132`](https://youtrack.jetbrains.com/issue/KT-66132) K2: FirRegularClass expected, but FirFileImpl found | Containing declaration is not found - [`KT-72196`](https://youtrack.jetbrains.com/issue/KT-72196) K2. KMP. IllegalStateException: expect-actual matching is only possible for code with sources - [`KT-72652`](https://youtrack.jetbrains.com/issue/KT-72652) `FirProvider#getContainingClass` should support `FirDanglingModifierSymbol` - [`KT-73105`](https://youtrack.jetbrains.com/issue/KT-73105) Lazy resolve contract violation (BODY\_RESOLVE from BODY\_RESOLVE) - [`KT-66261`](https://youtrack.jetbrains.com/issue/KT-66261) K2: Analysis API: "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtProperty, fir is null" with MULTIPLE\_LABELS\_ARE\_FORBIDDEN K2 error - [`KT-72315`](https://youtrack.jetbrains.com/issue/KT-72315) K2. KIWA on usage of always-true OR in guard condition - [`KT-65707`](https://youtrack.jetbrains.com/issue/KT-65707) K2 IDE: unresolved calls of callables imported with typealias as qualifier - [`KT-61516`](https://youtrack.jetbrains.com/issue/KT-61516) K2: Provide an LL FIR implementation for `getContainingClassSymbol` (in `FirHelpers`) - [`KT-72853`](https://youtrack.jetbrains.com/issue/KT-72853) Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirContextReceiverImpl(Source) but FirArgumentListImpl found - [`KT-64215`](https://youtrack.jetbrains.com/issue/KT-64215) K2: do not resolve type annotations of receiver if it is used as an implicit return type - [`KT-64248`](https://youtrack.jetbrains.com/issue/KT-64248) K2: do not resolve type annotations of context receiver if it is used as an implicit return type - [`KT-72821`](https://youtrack.jetbrains.com/issue/KT-72821) Add assertion to diagnostic tests to check that all declarations have BODY\_RESOLVE phase at the end - [`KT-64056`](https://youtrack.jetbrains.com/issue/KT-64056) K2: K2: FirLazyBodiesCalculator shouldn't calculate annotation arguments on type phase - [`KT-71651`](https://youtrack.jetbrains.com/issue/KT-71651) K2 IDE: False positive NON\_LOCAL\_SUSPENSION\_POINT in suspend function call - [`KT-72164`](https://youtrack.jetbrains.com/issue/KT-72164) K2. IllegalArgumentException when pre and post increment are used simultaneously in assignment - [`KT-71174`](https://youtrack.jetbrains.com/issue/KT-71174) Illegal scope used - [`KT-72407`](https://youtrack.jetbrains.com/issue/KT-72407) FirImplementationByDelegationWithDifferentGenericSignatureChecker: FirLazyExpression should be calculated before accessing - [`KT-72228`](https://youtrack.jetbrains.com/issue/KT-72228) K2: Reformat doesn't work in project with Kotlin `2.0.21` - [`KT-69671`](https://youtrack.jetbrains.com/issue/KT-69671) TYPES phase contract violation through JavaSymbolProvider - [`KT-71348`](https://youtrack.jetbrains.com/issue/KT-71348) K2: KotlinIllegalStateExceptionWithAttachments: 'By now the annotations argument mapping should have been resolved' during code inspection - [`KT-72024`](https://youtrack.jetbrains.com/issue/KT-72024) FirClassVarianceChecker: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource - [`KT-71746`](https://youtrack.jetbrains.com/issue/KT-71746) K2 IDE. `ISE: Zero or multiple overrides found for descriptor in FirRegularClassSymbol serializing/ExternalSerializer` and red code on `@Serializer`(forClass) \` usage ##### Analysis API. Infrastructure - [`KT-72922`](https://youtrack.jetbrains.com/issue/KT-72922) KotlinFakeClsStubsCache project leakage - [`KT-71988`](https://youtrack.jetbrains.com/issue/KT-71988) Improve scripts test coverage by LL FIR - [`KT-64687`](https://youtrack.jetbrains.com/issue/KT-64687) K2: Analysis API: migrate AbstractFirLibraryModuleDeclarationResolveTest to kotlin repo ##### Analysis API. Light Classes - [`KT-73492`](https://youtrack.jetbrains.com/issue/KT-73492) K2. FP error in Java file when using `@JvmSuppressWildcards` annotation without arguments - [`KT-66763`](https://youtrack.jetbrains.com/issue/KT-66763) K2: Get rid of context receivers in Analysis API and LL API - [`KT-71781`](https://youtrack.jetbrains.com/issue/KT-71781) SLC: migrate SLC from KotlinModificationTrackerService to KotlinModificationTrackerFactory - [`KT-67963`](https://youtrack.jetbrains.com/issue/KT-67963) K2: PsiInvalidElementAccessException on redeclaration of class with constructor - [`KT-71407`](https://youtrack.jetbrains.com/issue/KT-71407) K2: Do not report `@JvmField` default value as PsiField initializer in K2 - [`KT-72078`](https://youtrack.jetbrains.com/issue/KT-72078) K2 PSI change for constructor parameter with value class type ##### Analysis API. Providers and Caches - [`KT-69247`](https://youtrack.jetbrains.com/issue/KT-69247) Analysis API: Invalidate sessions after builtins modification events - [`KT-72704`](https://youtrack.jetbrains.com/issue/KT-72704) ISE: No 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter'(53) in array owner: LLFirBuiltinsAndCloneableSession for Builtins for JS/wasm-js (JS) - [`KT-67148`](https://youtrack.jetbrains.com/issue/KT-67148) Analysis API: Introduce a weak reference cache for the original `KtSymbol` in `KtSymbolPointer` - [`KT-73395`](https://youtrack.jetbrains.com/issue/KT-73395) Analysis API: `JavaElementPsiSourceWithSmartPointer` contains strong references to PSI - [`KT-72390`](https://youtrack.jetbrains.com/issue/KT-72390) Kotlin project full of red code - [`KT-72388`](https://youtrack.jetbrains.com/issue/KT-72388) KaFirStopWorldCacheCleaner: Control-flow exceptions - [`KT-72644`](https://youtrack.jetbrains.com/issue/KT-72644) "PSI has changed since creation" reason is misleading ##### Analysis API. Standalone - [`KT-73776`](https://youtrack.jetbrains.com/issue/KT-73776) Analysis API Standalone: Application services are missing registrations in tests and Dokka - [`KT-70346`](https://youtrack.jetbrains.com/issue/KT-70346) Analysis API Standalone: Remove the custom class loader option in Standalone session creation ##### Analysis API. Stubs and Decompilation - [`KT-69398`](https://youtrack.jetbrains.com/issue/KT-69398) K2 IDE: SOE on editing top level private variable name - [`KT-72897`](https://youtrack.jetbrains.com/issue/KT-72897) Analysis API: Smart PSI element pointers for `KtEnumEntry` stubs cannot be restored - [`KT-71565`](https://youtrack.jetbrains.com/issue/KT-71565) KtClassOrObject should use isLocal from greenStub ##### Analysis API. Surface ##### New Features - [`KT-73414`](https://youtrack.jetbrains.com/issue/KT-73414) Analysis API: Support typealiased constructors in KaConstructorSymbol - [`KT-70301`](https://youtrack.jetbrains.com/issue/KT-70301) Analysis API: 'KaSamConstructorSymbol' does not allow to find the constructed SAM type - [`KT-68236`](https://youtrack.jetbrains.com/issue/KT-68236) Analysis API: add `isExternal` property for KtPropertySymbol - [`KT-68598`](https://youtrack.jetbrains.com/issue/KT-68598) Analysis API: missed getClassLikeSymbolByClassId API ##### Performance Improvements - [`KT-74112`](https://youtrack.jetbrains.com/issue/KT-74112) UI freeze: `AnyThreadWriteThreadingSupport.getWritePermit` - [`KT-73942`](https://youtrack.jetbrains.com/issue/KT-73942) Extend resolveToSymbols cache to all references - [`KT-73622`](https://youtrack.jetbrains.com/issue/KT-73622) Cache `resolveToSymbols` result - [`KT-72684`](https://youtrack.jetbrains.com/issue/KT-72684) Drop explicit resolve from KaFirJavaInteroperabilityComponent#asPsiTypeElement - [`KT-60486`](https://youtrack.jetbrains.com/issue/KT-60486) Analysis API: optimize KaExpressionTypeProvider.returnType for simple cases ##### Fixes - [`KT-70114`](https://youtrack.jetbrains.com/issue/KT-70114) K2: Analysis API: do not lazy resolve declarations without deprecation to get it deprecation - [`KT-73406`](https://youtrack.jetbrains.com/issue/KT-73406) \[Analysis API] Allow extending KaModule resolution scope for all KaModules - [`KT-65850`](https://youtrack.jetbrains.com/issue/KT-65850) Cover Analysis API with KDocs - [`KT-72099`](https://youtrack.jetbrains.com/issue/KT-72099) Analysis API: implement an API to retrieve default imports - [`KT-73662`](https://youtrack.jetbrains.com/issue/KT-73662) KotlinIllegalArgumentExceptionWithAttachments: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl - [`KT-70108`](https://youtrack.jetbrains.com/issue/KT-70108) Analysis API: "KaScopeProvider.scopeContext" provides scopes from implicit companion objects with inaccessible classifiers - [`KT-68954`](https://youtrack.jetbrains.com/issue/KT-68954) Remove JAR publications with old artifact names (high-level-api family) - [`KT-70134`](https://youtrack.jetbrains.com/issue/KT-70134) Analysis API: Port API documentation from the guide to KDoc - [`KT-72973`](https://youtrack.jetbrains.com/issue/KT-72973) Introduce KaSymbolOrigin.TYPE\_ALIAS\_CONSTRUCTOR - [`KT-70356`](https://youtrack.jetbrains.com/issue/KT-70356) analyzeCopy with IGNORE\_SELF cannot find private members - [`KT-66783`](https://youtrack.jetbrains.com/issue/KT-66783) Analysis API: `KtFirSymbolProvider` creates symbols when given PSI from unrelated modules - [`KT-72937`](https://youtrack.jetbrains.com/issue/KT-72937) Migrate KaFirReceiverParameterSymbol to KaFirSymbol/KaFirKtBasedSymbol - [`KT-70243`](https://youtrack.jetbrains.com/issue/KT-70243) K2 IDE: PsiMethod.callableSymbol returns `null` for constructor - [`KT-66608`](https://youtrack.jetbrains.com/issue/KT-66608) Support `OperatorFunctionChecks#isOperator` in AA - [`KT-73068`](https://youtrack.jetbrains.com/issue/KT-73068) Analysis API: A `KaFirJavaFieldSymbol` for a static Java field is open instead of final - [`KT-73055`](https://youtrack.jetbrains.com/issue/KT-73055) Get rid of the deprecated Analysis API API - [`KT-65065`](https://youtrack.jetbrains.com/issue/KT-65065) Provide `KtTypeReference#getShortTypeText()` - [`KT-63800`](https://youtrack.jetbrains.com/issue/KT-63800) AA: this reference shortener doesn't simplify label - [`KT-72793`](https://youtrack.jetbrains.com/issue/KT-72793) Analysis API: 'expressionType' returns raw type for typealiased constructors calls - [`KT-72658`](https://youtrack.jetbrains.com/issue/KT-72658) `resolveToCall` doesn't work for `KtSafeQualifiedExpression` - [`KT-69930`](https://youtrack.jetbrains.com/issue/KT-69930) K2 IDE: Kotlin/JS project: ISE: "Unsupported type DYNAMIC\_TYPE" - [`KT-71373`](https://youtrack.jetbrains.com/issue/KT-71373) Make KaSessionProvider the internal API - [`KT-71869`](https://youtrack.jetbrains.com/issue/KT-71869) KaClassSymbol.superTypes for kotlin.Any contains kotlin.Any itself (K1-only) - [`KT-64190`](https://youtrack.jetbrains.com/issue/KT-64190) K2 IDE: Analysis API: KDoc link leads to a function instead of interface - [`KT-72075`](https://youtrack.jetbrains.com/issue/KT-72075) `defaultType` should be available for `KaClassifierSymbol` instead of `KaNamedClassSymbol` - [`KT-72002`](https://youtrack.jetbrains.com/issue/KT-72002) Analysis API: psi KaTypeParameterSymbol for default Java constructor is null ##### Backend. Native. Debug - [`KT-73306`](https://youtrack.jetbrains.com/issue/KT-73306) Native: add a way to specify a dir for the debug compilation unit file - [`KT-68536`](https://youtrack.jetbrains.com/issue/KT-68536) Native: bridges and trampolines affect stepping in the debugger - [`KT-72398`](https://youtrack.jetbrains.com/issue/KT-72398) Native: use `DW_AT_trampoline` for `objc2kotlin_*` functions instead of `KonanHook` in `konan_lldb.py` ##### Backend. Wasm - [`KT-71868`](https://youtrack.jetbrains.com/issue/KT-71868) K/Wasm: support generating debug information in DWARF format - [`KT-71645`](https://youtrack.jetbrains.com/issue/KT-71645) \[Wasm] Check wasm test runner for groupByPackage=true case - [`KT-72232`](https://youtrack.jetbrains.com/issue/KT-72232) Wasm, IC: Compilation exception on renaming of file - [`KT-73907`](https://youtrack.jetbrains.com/issue/KT-73907) Wasm: Duplication of files in browser distribution - [`KT-72223`](https://youtrack.jetbrains.com/issue/KT-72223) Compiler generates an invalid glue-code for externals with backquoted identifiers - [`KT-73015`](https://youtrack.jetbrains.com/issue/KT-73015) \[Wasm, IC] Implement possibility for readonly IC cache - [`KT-71763`](https://youtrack.jetbrains.com/issue/KT-71763) K/Wasm: compiler generates incorrect code for is check on JsAny - [`KT-72156`](https://youtrack.jetbrains.com/issue/KT-72156) custom-formatters.js exists in JAR after publishToMavenLocal but not in the published artifact in Maven public - [`KT-71037`](https://youtrack.jetbrains.com/issue/KT-71037) \[Wasm, IC] Investigate how make kotlin.test not fully loaded in IC ##### Compiler ##### New Features - [`KT-74049`](https://youtrack.jetbrains.com/issue/KT-74049) Introduce special override rule to allow overriding T! with T & Any - [`KT-73256`](https://youtrack.jetbrains.com/issue/KT-73256) Implement `all` meta-target for annotations - [`KT-73255`](https://youtrack.jetbrains.com/issue/KT-73255) Change defaulting rule for annotations - [`KT-61447`](https://youtrack.jetbrains.com/issue/KT-61447) Support context receivers overloads in Kotlin multiplatform - [`KT-67034`](https://youtrack.jetbrains.com/issue/KT-67034) Warning when a property hides a Java field from superclass - [`KT-71092`](https://youtrack.jetbrains.com/issue/KT-71092) Native: Write out used dependencies - [`KT-71094`](https://youtrack.jetbrains.com/issue/KT-71094) Kotlin/Native incremental compilation: fail compilation if cache build failed - [`KT-71569`](https://youtrack.jetbrains.com/issue/KT-71569) Improve diagnostic precision for OPT\_IN\_ARGUMENT\_IS\_NOT\_MARKER ##### Performance Improvements - [`KT-73434`](https://youtrack.jetbrains.com/issue/KT-73434) Slow / infinite compile involving ConeInferenceContext - [`KT-73328`](https://youtrack.jetbrains.com/issue/KT-73328) Do not spill `this` to a local variable in coroutines - [`KT-69995`](https://youtrack.jetbrains.com/issue/KT-69995) K2: Slow compilation when star projecting mutually recursive bounds from java - [`KT-73687`](https://youtrack.jetbrains.com/issue/KT-73687) Inefficient KtCommonFile#getFileAnnotationList - [`KT-45452`](https://youtrack.jetbrains.com/issue/KT-45452) K/N optimization: inline simple functions that aren't marked with `inline` keyword - [`KT-64898`](https://youtrack.jetbrains.com/issue/KT-64898) K2: toFirProperty call in PsiRawFirBuilder forces AST loading - [`KT-71673`](https://youtrack.jetbrains.com/issue/KT-71673) Consider making EnhancementSymbolsCache. enhancedFunctions using simple cache - [`KT-71973`](https://youtrack.jetbrains.com/issue/KT-71973) KtPsiUtil#getEnclosingElementForLocalDeclaration shouldn't iterate over directories ##### Fixes - [`KT-75965`](https://youtrack.jetbrains.com/issue/KT-75965) The iOS app did not run successfully in Release mode - [`KT-57696`](https://youtrack.jetbrains.com/issue/KT-57696) Deprecate JvmDefault annotation with level HIDDEN - [`KT-75578`](https://youtrack.jetbrains.com/issue/KT-75578) K2: False negative \[SUPER\_CALL\_WITH\_DEFAULT\_PARAMETERS] when calling the upper-class implementation of a method with the default value argument - [`KT-74764`](https://youtrack.jetbrains.com/issue/KT-74764) Native: merge init nodes generated within the same LLVM module for the same klib - [`KT-75444`](https://youtrack.jetbrains.com/issue/KT-75444) Contradictions in the constraint system are ignored in case of multiple constraints from forking points - [`KT-75649`](https://youtrack.jetbrains.com/issue/KT-75649) K2: NPE on assigning platform type value to non-nullable lateinit var - [`KT-75483`](https://youtrack.jetbrains.com/issue/KT-75483) Native: redundant unboxing generated with smart cast - [`KT-73028`](https://youtrack.jetbrains.com/issue/KT-73028) K2. FileAnalysisException on private property in Context - [`KT-73937`](https://youtrack.jetbrains.com/issue/KT-73937) Context parameters: IllegalArgumentException: source must not be null on lateinit var with a context - [`KT-74104`](https://youtrack.jetbrains.com/issue/KT-74104) Native: SynchronizedLazyImpl produces NPE on 2.1.20-Beta1 on mingwX64 - [`KT-71752`](https://youtrack.jetbrains.com/issue/KT-71752) K2: Absent non-null check for platform types in assignments - [`KT-75526`](https://youtrack.jetbrains.com/issue/KT-75526) Regression in K2 scripting: local name doesn't shadow one from the implicit receiver - [`KT-68131`](https://youtrack.jetbrains.com/issue/KT-68131) K2: build Grazie monorepo main branch - [`KT-72618`](https://youtrack.jetbrains.com/issue/KT-72618) Cannot define operator inc/dec in class context - [`KT-74739`](https://youtrack.jetbrains.com/issue/KT-74739) Native: "IllegalArgumentException: All constructors should've been lowered: FUNCTION\_REFERENCE" - [`KT-68768`](https://youtrack.jetbrains.com/issue/KT-68768) K2: unsuccessful inference fork with jspecify annotations - [`KT-71943`](https://youtrack.jetbrains.com/issue/KT-71943) K2: IAE "source must not be null" in FirJvmModuleAccessibilityQualifiedAccessChecker - [`KT-75111`](https://youtrack.jetbrains.com/issue/KT-75111) False negative "This declaration needs opt-in" for usage of enum entry with OptIn marker in another module - [`KT-73831`](https://youtrack.jetbrains.com/issue/KT-73831) Do not choose `field` target in annotation classes - [`KT-73494`](https://youtrack.jetbrains.com/issue/KT-73494) Enable first-only-warn annotation defaulting mode - [`KT-74929`](https://youtrack.jetbrains.com/issue/KT-74929) False positive TYPE\_PARAMETER\_OF\_PROPERTY\_NOT\_USED\_IN\_RECEIVER if it is used with T\&Any - [`KT-74227`](https://youtrack.jetbrains.com/issue/KT-74227) K2: "Cannot infer type for this parameter. Please specify it explicitly" caused by lambda in another lambda with a parameterized function type - [`KT-70789`](https://youtrack.jetbrains.com/issue/KT-70789) CLI error "mixing legacy and modern plugin arguments is prohibited" on using -Xcompiler-plugin unless default scripting plugin is disabled - [`KT-73903`](https://youtrack.jetbrains.com/issue/KT-73903) Design 'replaceWith' / 'test-only' kinds for the 'LanguageFeature' class - [`KT-74474`](https://youtrack.jetbrains.com/issue/KT-74474) K2: Report more precise diagnostic when last expression of non-unit lambda is a statement - [`KT-74478`](https://youtrack.jetbrains.com/issue/KT-74478) K2: False negative RETURN TYPE\_MISMATCH if the last statement of a lambda is indexed assignment - [`KT-67480`](https://youtrack.jetbrains.com/issue/KT-67480) K/N: a separate inlining phase after the lowerings - [`KT-72154`](https://youtrack.jetbrains.com/issue/KT-72154) Dokka fails with `not array: KClass<out Annotation>` on Kotlin 2.1.20-dev with `@SubclassOptInRequired` - [`KT-72040`](https://youtrack.jetbrains.com/issue/KT-72040) Extra checkers: false-positive unused parameter warnings on anonymous lambda parameters - [`KT-74203`](https://youtrack.jetbrains.com/issue/KT-74203) K2: False negative NO\_ELSE\_IN\_WHEN of a generic type with star projection <\*> bounded by a sealed hierarchy - [`KT-63720`](https://youtrack.jetbrains.com/issue/KT-63720) Coroutine debugger: do not optimise out local variables - [`KT-74024`](https://youtrack.jetbrains.com/issue/KT-74024) K2: Prohibit declaring local type aliases - [`KT-73146`](https://youtrack.jetbrains.com/issue/KT-73146) Context parameters CLI & diagnostics - [`KT-73251`](https://youtrack.jetbrains.com/issue/KT-73251) Warn users about removal of context classes and constructors - [`KT-72222`](https://youtrack.jetbrains.com/issue/KT-72222) Context parameters parsing & resolution part 1 - [`KT-61175`](https://youtrack.jetbrains.com/issue/KT-61175) K2: FirReceiverParameter does not extend FirDeclaration - [`KT-73858`](https://youtrack.jetbrains.com/issue/KT-73858) Compose / iOS: NullPointerException on building - [`KT-73864`](https://youtrack.jetbrains.com/issue/KT-73864) \[Native] Decouple `IrType.computePrimitiveBinaryTypeOrNull` from backend.native - [`KT-73122`](https://youtrack.jetbrains.com/issue/KT-73122) Move the upgrade references lowering to be first one in Native pipeline - [`KT-73608`](https://youtrack.jetbrains.com/issue/KT-73608) K2: "Initializer type mismatch" with map and typealias to object - [`KT-73691`](https://youtrack.jetbrains.com/issue/KT-73691) DCE removes static initializer function, which is actually called - [`KT-74147`](https://youtrack.jetbrains.com/issue/KT-74147) K2: False negative INCONSISTENT\_TYPE\_PARAMETER\_VALUES - [`KT-73454`](https://youtrack.jetbrains.com/issue/KT-73454) K2: Fix type parameters mapping for typealiases with inner RHS - [`KT-73043`](https://youtrack.jetbrains.com/issue/KT-73043) K2 Compiler does not allow references to inner constructors with typealiases - [`KT-74040`](https://youtrack.jetbrains.com/issue/KT-74040) Compilation of inner class usage does not check the visibility of parent class during compilation in different rounds - [`KT-74195`](https://youtrack.jetbrains.com/issue/KT-74195) Fully qualified names in error messages make them complicated - [`KT-74221`](https://youtrack.jetbrains.com/issue/KT-74221) Make `FirSupertypesChecker` a platform checker - [`KT-72962`](https://youtrack.jetbrains.com/issue/KT-72962) Consider enabling ConsiderForkPointsWhenCheckingContradictions LF earlier - [`KT-74242`](https://youtrack.jetbrains.com/issue/KT-74242) Freeze on `runCatching` call in `finally` block inside SAM conversion - [`KT-29222`](https://youtrack.jetbrains.com/issue/KT-29222) FIR: consider folding binary expression chains - [`KT-73760`](https://youtrack.jetbrains.com/issue/KT-73760) Cannot implement two Java interfaces with `@NotNull`-annotated type argument and Kotlin's plain (nullable) type parameter - [`KT-58933`](https://youtrack.jetbrains.com/issue/KT-58933) Applying suggested signature from WRONG\_NULLABILITY\_FOR\_JAVA\_OVERRIDE leads to red code - [`KT-74107`](https://youtrack.jetbrains.com/issue/KT-74107) K2: Calling type alias constructor with inner RHS in static scope causes runtime crash - [`KT-74244`](https://youtrack.jetbrains.com/issue/KT-74244) Context parameters: context isn't checked for expect/actual property declaration - [`KT-74276`](https://youtrack.jetbrains.com/issue/KT-74276) Update ASM from 9.0 to 9.6.1 - [`KT-72737`](https://youtrack.jetbrains.com/issue/KT-72737) Avoid function references creation in lowerings after FunctionReferenceLowering - [`KT-72295`](https://youtrack.jetbrains.com/issue/KT-72295) K2: Generated accessors for delegated property should have property source - [`KT-73150`](https://youtrack.jetbrains.com/issue/KT-73150) Investigate/test approximation of context parameter type in completion - [`KT-73862`](https://youtrack.jetbrains.com/issue/KT-73862) \[Native] Decouple NativePreSerializationLoweringContext from backend.native - [`KT-70507`](https://youtrack.jetbrains.com/issue/KT-70507) Should parentheses prevent from plus/set operator desugaring? - [`KT-72677`](https://youtrack.jetbrains.com/issue/KT-72677) K2 IDE / Kotlin Debugger: “Couldn't find virtual file for p1/MainKt$foo$iface$1” on evaluating inline function from another module - [`KT-72672`](https://youtrack.jetbrains.com/issue/KT-72672) K2 IDE / Kotlin Debugger: “Couldn't find virtual file” on evaluating inline function for enum class entries from test module - [`KT-73912`](https://youtrack.jetbrains.com/issue/KT-73912) Cannot evaluate inline methods from another module in KMP project - [`KT-73765`](https://youtrack.jetbrains.com/issue/KT-73765) K2: Prohibit nested type aliases with inner RHS when it captures type parameters implicitly - [`KT-73869`](https://youtrack.jetbrains.com/issue/KT-73869) \[Native] Move KonanSymbols out of `backend.native` - [`KT-73823`](https://youtrack.jetbrains.com/issue/KT-73823) Kotlin/Native: IndexOutOfBounds for java.util.Map::getOrDefault - [`KT-73755`](https://youtrack.jetbrains.com/issue/KT-73755) K2: type mismatch error contains unsubstituted type parameter types - [`KT-72837`](https://youtrack.jetbrains.com/issue/KT-72837) ERROR\_IN\_CONTRACT\_DESCRIPTION message contains compiler internals - [`KT-73771`](https://youtrack.jetbrains.com/issue/KT-73771) K2: Infinite compilation caused by buildList without type - [`KT-67520`](https://youtrack.jetbrains.com/issue/KT-67520) Change of behaviour of inline function with safe cast on value type - [`KT-67518`](https://youtrack.jetbrains.com/issue/KT-67518) Value classes leak their carrier type implementation details via inlining - [`KT-71767`](https://youtrack.jetbrains.com/issue/KT-71767) Generate default compatibility bridges in -Xjvm-default=all/all-compatibility mode - [`KT-73716`](https://youtrack.jetbrains.com/issue/KT-73716) Context parameters expose visibility - [`KT-73671`](https://youtrack.jetbrains.com/issue/KT-73671) Context parameters: val/var on context parameter on a property is possible - [`KT-73510`](https://youtrack.jetbrains.com/issue/KT-73510) Context parameters: It is possible to declare a context for init block - [`KT-72305`](https://youtrack.jetbrains.com/issue/KT-72305) K2: Report error when using synthetic properties in case of mapped collections - [`KT-72429`](https://youtrack.jetbrains.com/issue/KT-72429) StackOverflowError when compiling large files - [`KT-72500`](https://youtrack.jetbrains.com/issue/KT-72500) K2 Debugger: NSME on evaluating lambda with a call to internal class field - [`KT-73845`](https://youtrack.jetbrains.com/issue/KT-73845) K2: IllegalArgumentException during FIR2IR transformation when processing nested default values in annotations - [`KT-73538`](https://youtrack.jetbrains.com/issue/KT-73538) K2 IDE / Kotlin Debugger: ISE “couldn't find inline method" on evaluating internal inline function with default arg from main module in test module - [`KT-73347`](https://youtrack.jetbrains.com/issue/KT-73347) K2: Expected is FirResolvedDeclarationStatus - [`KT-71226`](https://youtrack.jetbrains.com/issue/KT-71226) K2 Evaluator: Code fragment compilation with unresolved classes does not fail with exception - [`KT-73902`](https://youtrack.jetbrains.com/issue/KT-73902) Clean-up code around lateinit inline/value classes - [`KT-73693`](https://youtrack.jetbrains.com/issue/KT-73693) K2: DslMarker checker doesn't report violation for callable reference with bound receiver - [`KT-73667`](https://youtrack.jetbrains.com/issue/KT-73667) K2: DslMarker checker ignores function type annotations for invokeExtension - [`KT-72797`](https://youtrack.jetbrains.com/issue/KT-72797) K2 IDE / Kotlin Debugger: AE “No such value argument slot in IrCallImpl” on evaluating inc()-operator for private field - [`KT-68388`](https://youtrack.jetbrains.com/issue/KT-68388) Compiler crash on convesion to fun interface with extension receiver - [`KT-73801`](https://youtrack.jetbrains.com/issue/KT-73801) False positive CONFLICTING\_OVERLOADS between base suspend fun and derived property - [`KT-62833`](https://youtrack.jetbrains.com/issue/KT-62833) K2: Run smoke FP tests with SLOW\_ASSERTIONS enabled - [`KT-54068`](https://youtrack.jetbrains.com/issue/KT-54068) Context receivers with lambda nesting result in Type mismatch - [`KT-51383`](https://youtrack.jetbrains.com/issue/KT-51383) Lambdas with context receivers do not accept context receivers from scope - [`KT-73331`](https://youtrack.jetbrains.com/issue/KT-73331) Context parameters implicit invoke - [`KT-73650`](https://youtrack.jetbrains.com/issue/KT-73650) Implement DIFFERENT\_NAMES\_FOR\_THE\_SAME\_PARAMETER\_IN\_SUPERTYPES for K2 - [`KT-73745`](https://youtrack.jetbrains.com/issue/KT-73745) Migrate modularized tests to the latest stable version - [`KT-70233`](https://youtrack.jetbrains.com/issue/KT-70233) Implement a deprecation error for FIELD-targeted annotations on annotation properties - [`KT-72996`](https://youtrack.jetbrains.com/issue/KT-72996) false-positive unresolved reference error on an overloaded callable reference in a lambda return position on the left-hand size of an elvis operator - [`KT-73791`](https://youtrack.jetbrains.com/issue/KT-73791) Forbid using `inline` and `value` class modifiers together - [`KT-73704`](https://youtrack.jetbrains.com/issue/KT-73704) \[Native] Decouple KonanIrLinker from cinterop deserialization - [`KT-73641`](https://youtrack.jetbrains.com/issue/KT-73641) Context parameters DSL marker support - [`KT-59880`](https://youtrack.jetbrains.com/issue/KT-59880) K2: Disappeared CONFLICTING\_OVERLOADS - [`KT-73339`](https://youtrack.jetbrains.com/issue/KT-73339) K2: "VerifyError: Bad type on operand stack" because of missing implicit cast on generic field receiver with star projection - [`KT-72585`](https://youtrack.jetbrains.com/issue/KT-72585) K2: Compilation failure when upgrading to Kotlin 2.0.20+: Cannot replace top-level type with star projection: S - [`KT-59443`](https://youtrack.jetbrains.com/issue/KT-59443) K2: Implement missing K1 diagnostics - [`KT-67517`](https://youtrack.jetbrains.com/issue/KT-67517) Value class upcast to Any leaks carrier type interfaces - [`KT-73527`](https://youtrack.jetbrains.com/issue/KT-73527) Prohibit (via a deprecation warning) accessing nested class through generic outer class - [`KT-72852`](https://youtrack.jetbrains.com/issue/KT-72852) JAVA\_CLASS\_ON\_COMPANION compiler warning missing in K2 - [`KT-71704`](https://youtrack.jetbrains.com/issue/KT-71704) K2: subAtom already initialized - [`KT-73399`](https://youtrack.jetbrains.com/issue/KT-73399) compile-time JVM codegen failure on a KProperty argument of a KSuspendFunction parameter - [`KT-72281`](https://youtrack.jetbrains.com/issue/KT-72281) K/N: "Failed to wait for cache to be built" - [`KT-73049`](https://youtrack.jetbrains.com/issue/KT-73049) Kotlin Debugger: CNFE on evaluating local function inside lambda - [`KT-72725`](https://youtrack.jetbrains.com/issue/KT-72725) KMP: Unsupported actualization of inherited java field in expect class - [`KT-73476`](https://youtrack.jetbrains.com/issue/KT-73476) K2: Visibility of nested type aliases is not respected if RHS is inner - [`KT-72957`](https://youtrack.jetbrains.com/issue/KT-72957) K2: Don't use offsets for mapping annotations from IR plugins injected into metadata - [`KT-72814`](https://youtrack.jetbrains.com/issue/KT-72814) FIR: don't use function references in FirThisReference - [`KT-73143`](https://youtrack.jetbrains.com/issue/KT-73143) Context parameters resolution leftovers - [`KT-71649`](https://youtrack.jetbrains.com/issue/KT-71649) K2: Put operator on mutableMap\<T?, V>() causes crashes on null key - [`KT-72832`](https://youtrack.jetbrains.com/issue/KT-72832) Erroneous implicit cast inserted by smartcast - [`KT-72930`](https://youtrack.jetbrains.com/issue/KT-72930) K2 IDE / Kotlin Debugger: ISE “couldn't find inline method” on evaluating internal inline function from main module in test module - [`KT-73095`](https://youtrack.jetbrains.com/issue/KT-73095) K2: "Failed to find functional supertype for ConeIntersectionType" - [`KT-70366`](https://youtrack.jetbrains.com/issue/KT-70366) K2: "KotlinIllegalArgumentExceptionWithAttachments: Failed to find functional supertype for class " - [`KT-73260`](https://youtrack.jetbrains.com/issue/KT-73260) Rename context receivers to context parameters in frontend - [`KT-73375`](https://youtrack.jetbrains.com/issue/KT-73375) K2/JVM: -Xuse-type-table generates incorrect metadata for local delegated properties - [`KT-72470`](https://youtrack.jetbrains.com/issue/KT-72470) Annotations on effect declarations are unresolved - [`KT-72409`](https://youtrack.jetbrains.com/issue/KT-72409) False negative "Type parameter is forbidden for catch parameter" - [`KT-72723`](https://youtrack.jetbrains.com/issue/KT-72723) K2: Replace unused FIR properties required by inheritence with computed properties - [`KT-72246`](https://youtrack.jetbrains.com/issue/KT-72246) Exception from FirReceiverAccessBeforeSuperCallChecker on red code - [`KT-47289`](https://youtrack.jetbrains.com/issue/KT-47289) No error on companion object inside inner class in enum constructor call - [`KT-46120`](https://youtrack.jetbrains.com/issue/KT-46120) No error reported when Java interface method is implemented by delegation to Java class where corresponding method has different generic signature - [`KT-72746`](https://youtrack.jetbrains.com/issue/KT-72746) K2: No IR overriddens generated for Nothing.toString - [`KT-70389`](https://youtrack.jetbrains.com/issue/KT-70389) K2: StackOverflowError at org.jetbrains.kotlin.fir.resolve.calls.CreateFreshTypeVariableSubstitutorStage.shouldBeFlexible - [`KT-72537`](https://youtrack.jetbrains.com/issue/KT-72537) \[FIR Analysis] 'IllegalArgumentException: source must not be null' when typing '++++' (four pluses) - [`KT-73010`](https://youtrack.jetbrains.com/issue/KT-73010) K2: Refactor `DispatchReceiverMemberScopeTowerLevel.processMembers` - [`KT-72924`](https://youtrack.jetbrains.com/issue/KT-72924) Extension property declaration shouldn't be possible in when - [`KT-72826`](https://youtrack.jetbrains.com/issue/KT-72826) UNUSED\_LAMBDA\_EXPRESSION compiler warning missing in K2 - [`KT-25513`](https://youtrack.jetbrains.com/issue/KT-25513) Report compilation error when in generated JVM bytecode there is a need for CHECKCAST to inaccessible interface - [`KT-73153`](https://youtrack.jetbrains.com/issue/KT-73153) K2: Standalone diagnostics on type arguments are not reported - [`KT-71252`](https://youtrack.jetbrains.com/issue/KT-71252) JVM: Set the proper visibility to backing fields of lateinit properties - [`KT-73213`](https://youtrack.jetbrains.com/issue/KT-73213) K2: Initialize outer type parameter refs for inner (local) type aliases during FIR building - [`KT-73215`](https://youtrack.jetbrains.com/issue/KT-73215) Set up isInner property for inner type aliases during FIR building - [`KT-73088`](https://youtrack.jetbrains.com/issue/KT-73088) K2: Introduce NestedTypeAliases experimental feature - [`KT-73192`](https://youtrack.jetbrains.com/issue/KT-73192) K2: FirJavaField has incorrect modality - [`KT-60310`](https://youtrack.jetbrains.com/issue/KT-60310) K2: introduce FirErrorContractDescription to distinguish unresolved contract from error one - [`KT-73008`](https://youtrack.jetbrains.com/issue/KT-73008) K2: Resolve nested type aliases in derived classes - [`KT-73009`](https://youtrack.jetbrains.com/issue/KT-73009) K2: Treat nested type aliases as classes during supertypes resolution (they are not inner by default) - [`KT-59886`](https://youtrack.jetbrains.com/issue/KT-59886) K2: Disappeared ERROR\_IN\_CONTRACT\_DESCRIPTION - [`KT-72839`](https://youtrack.jetbrains.com/issue/KT-72839) Rewrite processConstraintStorageFromExpression using resolution atoms - [`KT-73147`](https://youtrack.jetbrains.com/issue/KT-73147) Context parameters FIR2IR support - [`KT-72789`](https://youtrack.jetbrains.com/issue/KT-72789) Fix inconsistent IR produced by ScriptsToClassesLowering for script instance feature - [`KT-66711`](https://youtrack.jetbrains.com/issue/KT-66711) K2: INITIALIZER\_TYPE\_MISMATCH is reported on the whole lambda instead of RETURN\_TYPE\_MISMATCH on each return expression - [`KT-73011`](https://youtrack.jetbrains.com/issue/KT-73011) K2: Allow overloads resolution for callable references based on expected type variable with constraints - [`KT-73031`](https://youtrack.jetbrains.com/issue/KT-73031) K2: Callable reference unresolved inside elvis with a complex function type - [`KT-66161`](https://youtrack.jetbrains.com/issue/KT-66161) K2: False-positive REDUNDANT\_VISIBILITY\_MODIFIER for protected modifier in private class - [`KT-73065`](https://youtrack.jetbrains.com/issue/KT-73065) CCE with context receivers - [`KT-72345`](https://youtrack.jetbrains.com/issue/KT-72345) K2: Method 'get' without `@Override` annotation not called - [`KT-69981`](https://youtrack.jetbrains.com/issue/KT-69981) K2: Refactor ResolutionMode.WithExpectedType.expectedType to be a ConeKotlinType - [`KT-68363`](https://youtrack.jetbrains.com/issue/KT-68363) `ABSTRACT_MEMBER_NOT_IMPLEMENTED` diagnostic reported only for the first not implemented function - [`KT-72105`](https://youtrack.jetbrains.com/issue/KT-72105) JVM: typeOf() result is sometimes incorrectly optimized to null in bytecode - [`KT-72813`](https://youtrack.jetbrains.com/issue/KT-72813) FIR: fix containing declaration for annotations of a receiver parameter - [`KT-72552`](https://youtrack.jetbrains.com/issue/KT-72552) AutoboxingTransformer fails on during linkage on nested lambdas with cinteroped types - [`KT-71751`](https://youtrack.jetbrains.com/issue/KT-71751) K2: Skipping code in last statement of lambda - [`KT-72863`](https://youtrack.jetbrains.com/issue/KT-72863) K2: failed compilation for a context receiver with an annotated type - [`KT-68984`](https://youtrack.jetbrains.com/issue/KT-68984) K2: Typealiased SAM constructors resolve to the expanded interface - [`KT-57471`](https://youtrack.jetbrains.com/issue/KT-57471) K2: Wrong diagnostics for named lambda arguments - [`KT-69560`](https://youtrack.jetbrains.com/issue/KT-69560) Tidy up test data that affected by `PrioritizedEnumEntries` or `ProperUninitializedEnumEntryAccessAnalysis` features - [`KT-72894`](https://youtrack.jetbrains.com/issue/KT-72894) "Placeholder projection cannot be mapped." error from resolve when using placeholder in a typealias - [`KT-70886`](https://youtrack.jetbrains.com/issue/KT-70886) FIR/AA: Reduce strong memory footprint of cached symbol names providers - [`KT-72238`](https://youtrack.jetbrains.com/issue/KT-72238) Argument type mismatch in builder inside extension function after ?: - [`KT-72738`](https://youtrack.jetbrains.com/issue/KT-72738) Simplify naming scheme for function references - [`KT-72340`](https://youtrack.jetbrains.com/issue/KT-72340) K1/K2 difference in de-duplication of OPT\_IN\_USAGE and OPT\_IN\_TO\_INHERITANCE - [`KT-61272`](https://youtrack.jetbrains.com/issue/KT-61272) Frontend: error message "feature ... is experimental and should be enabled explicitly" does not explain how to do it - [`KT-72664`](https://youtrack.jetbrains.com/issue/KT-72664) K2: Function type kind is not propagated for parameters of incomplete calls - [`KT-64247`](https://youtrack.jetbrains.com/issue/KT-64247) K2: FirContextReceiver does not extend FirDeclaration - [`KT-67383`](https://youtrack.jetbrains.com/issue/KT-67383) Incorrect optimisation when optimising for loop with UByte - [`KT-70975`](https://youtrack.jetbrains.com/issue/KT-70975) K2: Confusing INVISIBLE\_REFERENCE message when accessing nested class in private-in-file class - [`KT-72743`](https://youtrack.jetbrains.com/issue/KT-72743) CCE in `FirUninitializedEnumChecker`: `FirPropertySymbol` cannot be cast to `FirEnumEntrySymbol` - [`KT-71708`](https://youtrack.jetbrains.com/issue/KT-71708) False negative UNSUPPORTED for collection literals as trailing return value - [`KT-67707`](https://youtrack.jetbrains.com/issue/KT-67707) K2: CCE "ArrayMapImpl cannot be cast to class OneElementArrayMap" from FIR evaluator - [`KT-71966`](https://youtrack.jetbrains.com/issue/KT-71966) Seemingly bug in SupertypeComputationSession#breakLoopFor - [`KT-17455`](https://youtrack.jetbrains.com/issue/KT-17455) Confusing error message "There's a cycle in the inheritance hierarchy for this type" when outer class inherits nested class - [`KT-71119`](https://youtrack.jetbrains.com/issue/KT-71119) K2: "AssertionError: Should be primitive or nullable primitive type" caused by comparing Double/Float and Any successor type - [`KT-57527`](https://youtrack.jetbrains.com/issue/KT-57527) K1/K2: "IllegalArgumentException: Some properties have the same names" with inline class - [`KT-57851`](https://youtrack.jetbrains.com/issue/KT-57851) Wrong ValueClassRepresentation inside value class - [`KT-67998`](https://youtrack.jetbrains.com/issue/KT-67998) K2: CANNOT\_INFER\_PARAMETER\_TYPE on incomplete call inside if in a Java SAM - [`KT-71961`](https://youtrack.jetbrains.com/issue/KT-71961) K2 debugger evaluation ClassCastException in IrElementsCreationUtilsKt#createFilesWithBuiltinsSyntheticDeclarationsIfNeeded - [`KT-72504`](https://youtrack.jetbrains.com/issue/KT-72504) Optimize `KotlinLocalVirtualFile.isDirectory` for parent virtual files - [`KT-71399`](https://youtrack.jetbrains.com/issue/KT-71399) Kotlin Script: NPE on type resolve - [`KT-69283`](https://youtrack.jetbrains.com/issue/KT-69283) Incorrect synthetic line numbers when inlining suspend funs - [`KT-52929`](https://youtrack.jetbrains.com/issue/KT-52929) Java cannot extend instantiations of generic Kotlin collections in the presence of instantiated Kotlin subclasses - [`KT-71885`](https://youtrack.jetbrains.com/issue/KT-71885) K2: confusing message when lateinit var is assigned once - [`KT-69920`](https://youtrack.jetbrains.com/issue/KT-69920) K2: java.lang.IllegalArgumentException: FirNamedArgumentExpressionImpl.replaceConeTypeOrNull() during Space project compilation - [`KT-55894`](https://youtrack.jetbrains.com/issue/KT-55894) NI: Compile errors for out-projected types are more cryptic than previously - [`KT-72231`](https://youtrack.jetbrains.com/issue/KT-72231) K2: NONE\_APPLICABLE instead of NAMED\_ARGUMENTS\_NOT\_ALLOWED for non-Kotlin functions with overloads - [`KT-72422`](https://youtrack.jetbrains.com/issue/KT-72422) KMP: False-positive report of ACTUAL\_ANNOTATIONS\_NOT\_MATCH\_EXPECT on SublcassOptInRequired - [`KT-72257`](https://youtrack.jetbrains.com/issue/KT-72257) 'javaClass' method cannot be evaluated in Kotlin project itself - [`KT-72408`](https://youtrack.jetbrains.com/issue/KT-72408) Introduce new TYPE\_VARIANCE\_CONFLICT diagnostics - [`KT-71508`](https://youtrack.jetbrains.com/issue/KT-71508) JAVA\_CLASS\_INHERITS\_KT\_PRIVATE\_CLASS isn't reported when java class is inherited from an effectively private class - [`KT-72177`](https://youtrack.jetbrains.com/issue/KT-72177) K2: Argument type mismatch when using star projection - [`KT-72245`](https://youtrack.jetbrains.com/issue/KT-72245) K2: When Java source roots are passed by file, fully qualified deep packages are unresolved - [`KT-63923`](https://youtrack.jetbrains.com/issue/KT-63923) Confusing error messages for TYPE\_MISMATCH from inference - [`KT-57708`](https://youtrack.jetbrains.com/issue/KT-57708) Unclear TYPE\_MISMATCH messages in certain situations with generics - [`KT-72178`](https://youtrack.jetbrains.com/issue/KT-72178) K2: "Unexpected FirPlaceholderProjectionImpl" exception when using "\_" as key type in EnumMap - [`KT-62455`](https://youtrack.jetbrains.com/issue/KT-62455) "NullPointerException" with 'multi-field value class' - [`KT-72302`](https://youtrack.jetbrains.com/issue/KT-72302) K2: no error on type operator in annotation parameter default value - [`KT-72212`](https://youtrack.jetbrains.com/issue/KT-72212) \[Scripting] Guava dependency is not packaged correctly - [`KT-71662`](https://youtrack.jetbrains.com/issue/KT-71662) PCLA: a type variable is not fixed on demand to a type containing a not-fixed type variable - [`KT-72229`](https://youtrack.jetbrains.com/issue/KT-72229) K2: Change LV of ProhibitConstructorAndSupertypeOnTypealiasWithTypeProjection to 2.2 - [`KT-70256`](https://youtrack.jetbrains.com/issue/KT-70256) K2: Check for `MISSING_BUILT_IN_DECLARATION` not only for JVM but for all platforms - [`KT-72173`](https://youtrack.jetbrains.com/issue/KT-72173) K2: simple object names from root package are resolved without imports in non-root packages when used as values - [`KT-71480`](https://youtrack.jetbrains.com/issue/KT-71480) JAVA\_CLASS\_INHERITS\_KT\_PRIVATE\_CLASS isn't reported while java object isn't created - [`KT-60034`](https://youtrack.jetbrains.com/issue/KT-60034) K2: Introduced NO\_GET\_METHOD - [`KT-72199`](https://youtrack.jetbrains.com/issue/KT-72199) K1: Match the shape of references to synthetic Java properties to the shape of their getters - [`KT-15672`](https://youtrack.jetbrains.com/issue/KT-15672) Improve diagnostics for accessing Enum companion object from enum constructor - [`KT-71321`](https://youtrack.jetbrains.com/issue/KT-71321) K2: ClassCastException caused by missed type mismatch when passing a method reference - [`KT-72041`](https://youtrack.jetbrains.com/issue/KT-72041) Extra checkers: false-positive unused parameter warnings on implicit lambda parameters - [`KT-71959`](https://youtrack.jetbrains.com/issue/KT-71959) NO\_VALUE\_FOR\_PARAMETER should use actual lambda parameter name - [`KT-69985`](https://youtrack.jetbrains.com/issue/KT-69985) K2: simple classifier names from root package are resolved without imports in non-root packages - [`KT-70139`](https://youtrack.jetbrains.com/issue/KT-70139) Remove dependencies of debugger on K1 and old JVM backend - [`KT-72142`](https://youtrack.jetbrains.com/issue/KT-72142) PSI: unrelated enums are treated as equivalent - [`KT-57358`](https://youtrack.jetbrains.com/issue/KT-57358) False positive "Const 'val' initializer should be a constant value" caused by equality with literals - [`KT-71753`](https://youtrack.jetbrains.com/issue/KT-71753) PCLA: false-negative operator ambiguity error on fixing a type variable on demand for an operator assignment - [`KT-70844`](https://youtrack.jetbrains.com/issue/KT-70844) K2 IDE: deprecated marker shouldn't highlight not deprecated type argument - [`KT-70854`](https://youtrack.jetbrains.com/issue/KT-70854) K2 IDE: annotation on delegation causes illegal argument exception - [`KT-56901`](https://youtrack.jetbrains.com/issue/KT-56901) NI: Missing error on passing star-projection to reified type argument - [`KT-70856`](https://youtrack.jetbrains.com/issue/KT-70856) K2: IllegalStateException: Non-empty unresolved argument list - [`KT-71897`](https://youtrack.jetbrains.com/issue/KT-71897) K2: Don't erase in projections in SAM conversion if -Xsam-conversion=class like in K1 - [`KT-66464`](https://youtrack.jetbrains.com/issue/KT-66464) Introduce `isInlineable` parameter for `FunctionTypeKind` - [`KT-71590`](https://youtrack.jetbrains.com/issue/KT-71590) K2: false alarm from `UselessCallOnNotNullChecker` - [`KT-71919`](https://youtrack.jetbrains.com/issue/KT-71919) Wrapped ProcessCanceledException in GenerationState#loadClassBuilderInterceptors - [`KT-70922`](https://youtrack.jetbrains.com/issue/KT-70922) PSI for KtPropertyAccessor is inconsistent with KtNamedFunction - [`KT-28598`](https://youtrack.jetbrains.com/issue/KT-28598) Type is inferred incorrectly to Any on a deep generic type with out projection - [`KT-71490`](https://youtrack.jetbrains.com/issue/KT-71490) K2: missing REDUNDANT\_ELSE\_IN\_WHEN - [`KT-36107`](https://youtrack.jetbrains.com/issue/KT-36107) Remove deprecated mod operator convention - [`KT-71166`](https://youtrack.jetbrains.com/issue/KT-71166) Generic synthetic property is unresolved when parameterized with Unit - [`KT-71738`](https://youtrack.jetbrains.com/issue/KT-71738) K2: False negative REDECLARATION inside object expression - [`KT-59908`](https://youtrack.jetbrains.com/issue/KT-59908) K2: Disappeared RECURSIVE\_TYPEALIAS\_EXPANSION - [`KT-69937`](https://youtrack.jetbrains.com/issue/KT-69937) Define & enforce user-friendly terminology for extended checkers - [`KT-68834`](https://youtrack.jetbrains.com/issue/KT-68834) Parentheses don't influence calls of any convention operators (except invoke operator) after safe navigation operator - [`KT-58437`](https://youtrack.jetbrains.com/issue/KT-58437) K2: Do not use descriptors in KonanSymbols - [`KT-18563`](https://youtrack.jetbrains.com/issue/KT-18563) Do not generate inline reified functions as private in bytecode ##### Compose compiler - [`b/397855145`](https://issuetracker.google.com/issues/397855145) Fix "Unknown file" error in target annotation inference - [`b/377499888`](https://issuetracker.google.com/issues/377499888) Allow restarting overridden functions in a final class - [`b/390151896`](https://issuetracker.google.com/issues/390151896) Fix default arguments with varargs in `@Composable` functions - [`b/388030459`](https://issuetracker.google.com/issues/388030459) Kotlin compiler backend exception when lambda with anonymous object is memoized - [`b/310004740`](https://issuetracker.google.com/issues/310004740) Check vararg parameter length in skipping logic - [`b/393400768`](https://issuetracker.google.com/issues/393400768) Use -1 for `.changed` call if nullable enum parameter is `null` - [`b/388505454`](https://issuetracker.google.com/issues/388505454) Change order of $changed bits with context parameters - [`b/165812010`](https://issuetracker.google.com/issues/165812010) Support default values in open `@Composable` functions (K2 only) - [`b/285336821`](https://issuetracker.google.com/issues/285336821) Use stability of parent class in stability inference - [`b/353744956`](https://issuetracker.google.com/issues/353744956) Fix context receiver/parameter handling in Compose - [`b/195200551`](https://issuetracker.google.com/issues/195200551) Call `Enum#ordinal` on enum values passed to Composer#changed - [`b/378697545`](https://issuetracker.google.com/issues/378697545) Avoid using ComposableSingletons inside public inline functions - [`b/376148043`](https://issuetracker.google.com/issues/376148043) Use remember function source key for intrinsic remember - [`b/345204571`](https://issuetracker.google.com/issues/345204571) Remove IR offsets for conditions generated by Compose compiler - [`b/376058538`](https://issuetracker.google.com/issues/376058538) Fix stack overflow when inferring stability of indirect generic loop - [`b/339322843`](https://issuetracker.google.com/issues/339322843) Transform `@Composable` property delegate references - [`CMP-7571`](https://youtrack.jetbrains.com/issue/CMP-7571) 1.8.0-alpha03 incompatible with Compose based on k1 ##### IDE - [`KT-59445`](https://youtrack.jetbrains.com/issue/KT-59445) Recursion detected on input: JavaAnnotationImpl ##### IR. Actualizer - [`KT-68830`](https://youtrack.jetbrains.com/issue/KT-68830) Compiler crash on missing actual class - [`KT-71809`](https://youtrack.jetbrains.com/issue/KT-71809) Kotlin-to-Java direct actualization: the property isn't actualized by overridden getter - [`KT-71817`](https://youtrack.jetbrains.com/issue/KT-71817) Actualization of static members is broken for non-JVM platforms ##### IR. Inlining ##### Fixes - [`KT-69681`](https://youtrack.jetbrains.com/issue/KT-69681) IR: Report warnings on exposure of private types in non-private inline functions - [`KT-72776`](https://youtrack.jetbrains.com/issue/KT-72776) \[JS] Add lowerings around inlining of private functions to the common prefix at the 1st phase of compilation - [`KT-72775`](https://youtrack.jetbrains.com/issue/KT-72775) \[JS] Add lowerings up to "cache private inline functions" to the common prefix at the 1st phase of compilation - [`KT-72440`](https://youtrack.jetbrains.com/issue/KT-72440) \[Native] Add lowerings around inlining of private functions to the common prefix at the 1st phase of compilation - [`KT-72439`](https://youtrack.jetbrains.com/issue/KT-72439) \[Native] Add lowerings up to "cache private inline functions" to the common prefix at the 1st phase of compilation - [`KT-74039`](https://youtrack.jetbrains.com/issue/KT-74039) IR proto: Rename properties of IrInlinedFunctionBlock - [`KT-73987`](https://youtrack.jetbrains.com/issue/KT-73987) Cherry-pick the fix for KT-73482 to 2.1.20-Beta1 - [`KT-73475`](https://youtrack.jetbrains.com/issue/KT-73475) Fix validation errors for `sharedBox...` methods - [`KT-73588`](https://youtrack.jetbrains.com/issue/KT-73588) Support serialization/deserialization of IrReturnableBlock and IrInlinedFunctionBlock - [`KT-69009`](https://youtrack.jetbrains.com/issue/KT-69009) Merge -Xverify-ir-visibility-after-inlining and -Xverify-ir-visibility CLI flags - [`KT-72915`](https://youtrack.jetbrains.com/issue/KT-72915) Use `LoweringContext` instead of `CommonBackendContext` for the first stage of compilation - [`KT-73101`](https://youtrack.jetbrains.com/issue/KT-73101) Try to unbound `JsIntrinsic` from `JsIrBackendContext` - [`KT-73110`](https://youtrack.jetbrains.com/issue/KT-73110) Unbind JS version of `Symbols` from `SymbolTable` - [`KT-73108`](https://youtrack.jetbrains.com/issue/KT-73108) Unbind JS version of `Symbols` from context - [`KT-71864`](https://youtrack.jetbrains.com/issue/KT-71864) \[JS] Run IrValidator as the first lowering in 1st compilation phase - [`KT-73103`](https://youtrack.jetbrains.com/issue/KT-73103) Switch `InlineCallableReferenceToLambdaPhase` to use `LoweringContext` - [`KT-73098`](https://youtrack.jetbrains.com/issue/KT-73098) Use `LoweringContext` for `NativeInlineFunctionResolver` - [`KT-73096`](https://youtrack.jetbrains.com/issue/KT-73096) Change `LateinitLowering` to use `LoweringContext` instead of `CommonBackendContext` - [`KT-71141`](https://youtrack.jetbrains.com/issue/KT-71141) Merge lateinit-related lowerings - [`KT-73099`](https://youtrack.jetbrains.com/issue/KT-73099) Use `BackendContext` for the `JsCodeOutliningLowering` - [`KT-73097`](https://youtrack.jetbrains.com/issue/KT-73097) Try to use `BackendContext` for `LocalDeclarationsLowering` - [`KT-73035`](https://youtrack.jetbrains.com/issue/KT-73035) Remove field of type SymbolTable from Symbols - [`KT-72919`](https://youtrack.jetbrains.com/issue/KT-72919) Move `JsCommonBackendContext.coroutineSymbols` into `Symbols` - [`KT-72916`](https://youtrack.jetbrains.com/issue/KT-72916) Drop `symbolTable` reference from `BuiltinSymbolsBase` - [`KT-72912`](https://youtrack.jetbrains.com/issue/KT-72912) Rewrite `andAllOuterClasses` located in `FunctionInlining` - [`KT-72910`](https://youtrack.jetbrains.com/issue/KT-72910) Move `isSideEffectFree` to the `Symbols` - [`KT-72907`](https://youtrack.jetbrains.com/issue/KT-72907) Extract `SharedVariablesManager` from `BackendContext` - [`KT-72905`](https://youtrack.jetbrains.com/issue/KT-72905) Unbind `KonanSharedVariablesManager` from `KonanBackendContext` - [`KT-70961`](https://youtrack.jetbrains.com/issue/KT-70961) \[K/N] Test IR inliner on 1st stage with box tests - [`KT-72884`](https://youtrack.jetbrains.com/issue/KT-72884) Internal error in body lowering: IllegalStateException: Can't inline given reference, it should've been lowered - [`KT-72920`](https://youtrack.jetbrains.com/issue/KT-72920) Drop `context` parameter from `JsCommonCoroutineSymbols` - [`KT-72906`](https://youtrack.jetbrains.com/issue/KT-72906) Unbind `JsSharedVariablesManager` from `JsIrBackendContext` - [`KT-67298`](https://youtrack.jetbrains.com/issue/KT-67298) Write tests for deserialization/serialization of unbound IR - [`KT-72521`](https://youtrack.jetbrains.com/issue/KT-72521) Kotlin/Native: java.lang.AssertionError: kfun:androidx.compose.runtime#access$\<get-androidx\_compose\_runtime\_ProvidedValue$stable>$p$tComposerKt(){}kotlin.Int - [`KT-67220`](https://youtrack.jetbrains.com/issue/KT-67220) Drop caching of deserialized/lowered inline functions - [`KT-72623`](https://youtrack.jetbrains.com/issue/KT-72623) Don't generate synthetic accessors in files other than the one being lowered - [`KT-71859`](https://youtrack.jetbrains.com/issue/KT-71859) \[K/N] Run IrValidator as the first lowering in 1st compilation phase - [`KT-67292`](https://youtrack.jetbrains.com/issue/KT-67292) Handling assertions before the IR inliner - [`KT-70423`](https://youtrack.jetbrains.com/issue/KT-70423) KLIB: SyntheticAccessorLowering - generate static factory functions instead of synthetic constructors - [`KT-69765`](https://youtrack.jetbrains.com/issue/KT-69765) Add language feature to enable IR inliner in K2 1st phase ##### IR. Interpreter - [`KT-72356`](https://youtrack.jetbrains.com/issue/KT-72356) K2 Native: IllegalStateException when annotation has the same source range as a constant in another file - [`KT-71903`](https://youtrack.jetbrains.com/issue/KT-71903) \[K/N] Find a way to set up a synchronization point for the IR interpreter - [`KT-66450`](https://youtrack.jetbrains.com/issue/KT-66450) IR interpreter can't handle entries of lowered enums - [`KT-71971`](https://youtrack.jetbrains.com/issue/KT-71971) K2 evaluator error on casting object of value type ##### IR. Tree ##### Performance Improvements - [`KT-74496`](https://youtrack.jetbrains.com/issue/KT-74496) 8% performance regression in lowerings - [`KT-72211`](https://youtrack.jetbrains.com/issue/KT-72211) Refactor IrValidator to speed up ##### Fixes - [`KT-73553`](https://youtrack.jetbrains.com/issue/KT-73553) \[Native] Create testrunners for serialization tests - [`KT-73224`](https://youtrack.jetbrains.com/issue/KT-73224) Migrate `compiler.ir.interpreter` to new IR parameter API - [`KT-73179`](https://youtrack.jetbrains.com/issue/KT-73179) Drop IrAttributeContainer - [`KT-67545`](https://youtrack.jetbrains.com/issue/KT-67545) Autogenerate DeepCopyIrTreeWithSymbols - [`KT-73222`](https://youtrack.jetbrains.com/issue/KT-73222) Migrate `compiler.ir.inline` to new IR parameter API - [`KT-72735`](https://youtrack.jetbrains.com/issue/KT-72735) Add new IR nodes for callable references - [`KT-73248`](https://youtrack.jetbrains.com/issue/KT-73248) Merge `FileValidator` and `CheckIrElementVisitor` into `IrValidator` - [`KT-73221`](https://youtrack.jetbrains.com/issue/KT-73221) Migrate `compiler.ir.actualization` to new IR parameter API - [`KT-73219`](https://youtrack.jetbrains.com/issue/KT-73219) Migrate `compiler.tests-compiler-utils` to new IR parameter API - [`KT-73194`](https://youtrack.jetbrains.com/issue/KT-73194) \[IR] Consider moving platform-independent funs from SymbolLookupUtils to SymbolFinder - [`KT-73218`](https://youtrack.jetbrains.com/issue/KT-73218) Migrate `compiler.tests-common-new` to new IR parameter API - [`KT-73227`](https://youtrack.jetbrains.com/issue/KT-73227) Migrate `js:js.tests` to new IR parameter API - [`KT-73258`](https://youtrack.jetbrains.com/issue/KT-73258) \[IR] Separate new lookup functionality from IrBuiltins - [`KT-73063`](https://youtrack.jetbrains.com/issue/KT-73063) \[JS]\[Wasm] Simplify ExpectDeclarationsRemoveLowering - [`KT-73350`](https://youtrack.jetbrains.com/issue/KT-73350) Migrate `:native.tests:klib-ir-inliner` to new IR parameter API - [`KT-68992`](https://youtrack.jetbrains.com/issue/KT-68992) Fix IR serializer to handle IR with unbound symbols - [`KT-64866`](https://youtrack.jetbrains.com/issue/KT-64866) Support deserializing and serializing unbound IR - [`KT-72619`](https://youtrack.jetbrains.com/issue/KT-72619) \[IR] Steer checks for vararg types with new test directive - [`KT-69498`](https://youtrack.jetbrains.com/issue/KT-69498) \[IR] Merge two `IrTypeUtils.kt` sources - [`KT-72376`](https://youtrack.jetbrains.com/issue/KT-72376) Disable vararg types checking in org.jetbrains.kotlin.fir.pipeline.ConvertToIrKt#runMandatoryIrValidation - [`KT-69454`](https://youtrack.jetbrains.com/issue/KT-69454) \[IR] Check vararg types in IrValidator - [`KT-68314`](https://youtrack.jetbrains.com/issue/KT-68314) Remove IrBuiltins from IrModule - [`KT-71944`](https://youtrack.jetbrains.com/issue/KT-71944) Move IR lowering phase descriptions to kdoc - [`KT-71826`](https://youtrack.jetbrains.com/issue/KT-71826) stdlib fails to compile with `-Xserialize-ir=all` ##### JavaScript ##### Performance Improvements - [`KT-16379`](https://youtrack.jetbrains.com/issue/KT-16379) KotlinJs - ArrayList get is now slow - [`KT-71199`](https://youtrack.jetbrains.com/issue/KT-71199) K/JS: charSequenceGet intrinsic should bypass Char range checks - [`KT-73759`](https://youtrack.jetbrains.com/issue/KT-73759) KJS: do not fillArrayVal if using an Array init function - [`KT-72180`](https://youtrack.jetbrains.com/issue/KT-72180) Fix problems with memory spikes during JS Codegen/Box tests ##### Fixes - [`KT-70987`](https://youtrack.jetbrains.com/issue/KT-70987) KJS: `@JsExport`: NullPointerException with private data class - [`KT-75606`](https://youtrack.jetbrains.com/issue/KT-75606) KJS: java.lang.AssertionError: Different declarations with the same signatures were detected - [`KT-58797`](https://youtrack.jetbrains.com/issue/KT-58797) Optimize the code generated for objects on JS and Wasm backends - [`KT-48468`](https://youtrack.jetbrains.com/issue/KT-48468) KJS / IR: "StackOverflowError" when long and complex `js` used - [`KT-72437`](https://youtrack.jetbrains.com/issue/KT-72437) KJS. Invalid `copy` method for inherited JSO with type parameters - [`KT-72974`](https://youtrack.jetbrains.com/issue/KT-72974) KJS / ESModules: EagerInitialization annotation has no effect on unused properties - [`KT-71788`](https://youtrack.jetbrains.com/issue/KT-71788) KJS: NPE when use `@JsExport` with `@JsPlainObject` - [`KT-43567`](https://youtrack.jetbrains.com/issue/KT-43567) KJS: toString() method and string interpolation of variable produce different code - [`KT-70778`](https://youtrack.jetbrains.com/issue/KT-70778) Kotlin Js companion is undefined in production build - [`KT-73130`](https://youtrack.jetbrains.com/issue/KT-73130) KJS: Missed `break` for do/while in generated JS code - [`KT-68067`](https://youtrack.jetbrains.com/issue/KT-68067) KJS: Overriding methods with default parameters doesn't work - [`KT-71656`](https://youtrack.jetbrains.com/issue/KT-71656) K2 JS: "IllegalStateException: Class has no primary constructor: kotlin.ULong" - [`KT-72598`](https://youtrack.jetbrains.com/issue/KT-72598) KJS: Nested `@JsPlainObject` does not work - [`KT-70078`](https://youtrack.jetbrains.com/issue/KT-70078) `@JsPlainObject` compiles broken code when inlining suspend function - [`KT-68904`](https://youtrack.jetbrains.com/issue/KT-68904) `@JsPlainObject` breaks when inside a file with `@file`:JsQualifier - [`KT-74067`](https://youtrack.jetbrains.com/issue/KT-74067) KJS: ES class constructor is generated with 'return this' - [`KT-72883`](https://youtrack.jetbrains.com/issue/KT-72883) \[JS] AbstractSuspendFunctionsLowering crashes on private top level suspend fun - [`KT-70533`](https://youtrack.jetbrains.com/issue/KT-70533) KJS: changed string concatenation behavior in 2.0 - [`KT-71949`](https://youtrack.jetbrains.com/issue/KT-71949) K/JS: investigate test failures in MPP codegen tests with friend dependencies - [`KT-71857`](https://youtrack.jetbrains.com/issue/KT-71857) \[JS] Add new step to codegen tests for IR inliner invocation - [`KT-14013`](https://youtrack.jetbrains.com/issue/KT-14013) JS toString produces different result for nullable/non-nullable ref to the same array - [`KT-70803`](https://youtrack.jetbrains.com/issue/KT-70803) Investigate generating call with invalid argument count in Js Backend - [`KT-72200`](https://youtrack.jetbrains.com/issue/KT-72200) Remove legacy JS test executors - [`KT-68332`](https://youtrack.jetbrains.com/issue/KT-68332) Remove legacy Nashorn script engine - [`KT-39337`](https://youtrack.jetbrains.com/issue/KT-39337) KJS: remove LabeledBlockToDoWhileTransformation and related things - [`KT-72732`](https://youtrack.jetbrains.com/issue/KT-72732) KJS / ES6: "SyntaxError: 'super' keyword unexpected here" with enabled `-Xir-generate-inline-anonymous-functions` and disabled arrow functions - [`KT-71821`](https://youtrack.jetbrains.com/issue/KT-71821) K/JS tests are failing with coroutines flow and turbine on timeout - [`KT-70227`](https://youtrack.jetbrains.com/issue/KT-70227) Remove JS from the `org.jetbrains.kotlin.test.TargetBackend` enum - [`KT-71855`](https://youtrack.jetbrains.com/issue/KT-71855) ES6ConstructorLowering sets extensionReceiver to a function without extension receiver - [`KT-70226`](https://youtrack.jetbrains.com/issue/KT-70226) Delete JS tests that were only run with the legacy JS backend ##### KMM Plugin - [`KT-66458`](https://youtrack.jetbrains.com/issue/KT-66458) KMM Wizards: Get rid of deprecated 'kotlinOptions' ##### Klibs ##### Fixes - [`KT-70146`](https://youtrack.jetbrains.com/issue/KT-70146) \[KLIB Resolve] Don't fail on nonexistent transitive dependency - [`KT-75393`](https://youtrack.jetbrains.com/issue/KT-75393) Non-JVM artifacts from Kotlin 2.1.20-RC fail on 2.1.x releases due to IMPLICIT\_ARGUMENT - [`KT-74045`](https://youtrack.jetbrains.com/issue/KT-74045) Context parameters: conflicting signatures for properties with/without context on the non-JVM backends - [`KT-74050`](https://youtrack.jetbrains.com/issue/KT-74050) Kotlin 2.1.0 with K1 throws a signature mismatch of Ir and Descriptor for Composable lambda - [`KT-73589`](https://youtrack.jetbrains.com/issue/KT-73589) Design & implement signatures for context parameters - [`KT-73721`](https://youtrack.jetbrains.com/issue/KT-73721) NativeLibraryAbiReaderWithManifestTest - move to Common BE tests - [`KT-73855`](https://youtrack.jetbrains.com/issue/KT-73855) \[Klibs] Changing function body causes change to header klib - [`KT-73474`](https://youtrack.jetbrains.com/issue/KT-73474) Create `NonLinkingIrInlineFunctionDeserializer` directly inside inline function resolver - [`KT-72627`](https://youtrack.jetbrains.com/issue/KT-72627) IrInstanceInitializer is always deserialized having kotlin/Unit type - [`KT-71500`](https://youtrack.jetbrains.com/issue/KT-71500) Improve "incompatible ABI version" error message - [`KT-72965`](https://youtrack.jetbrains.com/issue/KT-72965) Ignore subclassOptInRequired constructor warning - [`KT-69309`](https://youtrack.jetbrains.com/issue/KT-69309) Separate pure KLIB tests from Kotlin/Native tests - [`KT-71917`](https://youtrack.jetbrains.com/issue/KT-71917) \[JS] Make it possible to run IR lowerings before serializing to KLIBs - [`KT-67474`](https://youtrack.jetbrains.com/issue/KT-67474) K2: Missing `@ExtensionFunctionType` in metadata in KLIBs - [`KT-68756`](https://youtrack.jetbrains.com/issue/KT-68756) \[K/N] Make it possible to run IR lowerings before serializing to KLIBs - [`KT-72333`](https://youtrack.jetbrains.com/issue/KT-72333) Ensure KLIBs with old local signatures (< 2.1.20) are mutually compatible with KLIBs with new local signatures (>= 2.1.20) - [`KT-71633`](https://youtrack.jetbrains.com/issue/KT-71633) \[2.1.0] Suspicious "Argument type mismatch" error - [`KT-71333`](https://youtrack.jetbrains.com/issue/KT-71333) KLIB cross-compilation: Add additional tests ##### Libraries ##### New Features - [`KT-72480`](https://youtrack.jetbrains.com/issue/KT-72480) Move Instant and Clock from kotlinx-datetime to stdlib - [`KT-31880`](https://youtrack.jetbrains.com/issue/KT-31880) UUID functionality to fix Java bugs as well as extend it - [`KT-54606`](https://youtrack.jetbrains.com/issue/KT-54606) Print program name in Kotlin/Native executables ##### Performance Improvements - [`KT-72492`](https://youtrack.jetbrains.com/issue/KT-72492) Improve String.toFloatOrNull performance - [`KT-70695`](https://youtrack.jetbrains.com/issue/KT-70695) Float/Double.isFinite can be optimized ##### Fixes - [`KT-73654`](https://youtrack.jetbrains.com/issue/KT-73654) Remove org.w3c packages from stdlib documentation - [`KT-62423`](https://youtrack.jetbrains.com/issue/KT-62423) Consider providing Common atomic types - [`KT-28492`](https://youtrack.jetbrains.com/issue/KT-28492) Merge sources when building kotlin-osgi-bundle - [`KT-74173`](https://youtrack.jetbrains.com/issue/KT-74173) The sample code of `lazy` on stdlib can not run on playground due to "samples" package import - [`KT-73695`](https://youtrack.jetbrains.com/issue/KT-73695) PublishedApi KDoc's link to inline functions page is not rendered properly - [`KT-73817`](https://youtrack.jetbrains.com/issue/KT-73817) Part 1. Moving Atomics to kotlin.concurrent.atomics: bootstrap updates - [`KT-73743`](https://youtrack.jetbrains.com/issue/KT-73743) UninitializedPropertyAccessException on AtomicReference initialization - [`KT-73820`](https://youtrack.jetbrains.com/issue/KT-73820) Part 2. Moving Atomics to kotlin.concurrent.atomics: move the API to the new package - [`KT-73816`](https://youtrack.jetbrains.com/issue/KT-73816) Moving common Atomics to kotlin.concurrent.atomics package - [`KT-73747`](https://youtrack.jetbrains.com/issue/KT-73747) AtomicBoolean.asJavaAtomic() and AtomicBoolean.asKotlinAtomic() have unnecessary type parameter - [`KT-74641`](https://youtrack.jetbrains.com/issue/KT-74641) k.t.Clock: bypass thread state validation for std::chrono::system\_clock::now() - [`KT-74676`](https://youtrack.jetbrains.com/issue/KT-74676) Wasm: common atomic API actualizations are annotated with wrong experimental annotation - [`KT-74600`](https://youtrack.jetbrains.com/issue/KT-74600) Common atomic types could be used without explicit opt-in - [`KT-73291`](https://youtrack.jetbrains.com/issue/KT-73291) Uuid.random() requires security context in WasmJs - [`KT-69575`](https://youtrack.jetbrains.com/issue/KT-69575) kotlin.uuid.Uuid is not Comparable - [`KT-54859`](https://youtrack.jetbrains.com/issue/KT-54859) `kotlin.repeat` should document behavior in the case of negative arguments - [`KT-74294`](https://youtrack.jetbrains.com/issue/KT-74294) Make the Uuid.parse function able to parse multiple formats - [`KT-74279`](https://youtrack.jetbrains.com/issue/KT-74279) Introduce Uuid.parseHexDash() and toHexDashString() - [`KT-74272`](https://youtrack.jetbrains.com/issue/KT-74272) Introduce Uuid.fromUByteArray and toUByteArray - [`KT-74314`](https://youtrack.jetbrains.com/issue/KT-74314) Reduce bitwise operations on Longs in Uuid implementation - [`KT-73391`](https://youtrack.jetbrains.com/issue/KT-73391) Provide samples for common atomics API - [`KT-73890`](https://youtrack.jetbrains.com/issue/KT-73890) Add kotlin-metadata-jvm to .zip compiler distribution - [`KT-71099`](https://youtrack.jetbrains.com/issue/KT-71099) Mention that selector for maxBy/minBy family is not invoked for 1-element collections - [`KT-71762`](https://youtrack.jetbrains.com/issue/KT-71762) ReplaceWith properties kdoc is rendered with extra spaces - [`KT-73740`](https://youtrack.jetbrains.com/issue/KT-73740) Unresolved reference 'AtomicBoolean' in 2.1.20-Beta1 - [`KT-73762`](https://youtrack.jetbrains.com/issue/KT-73762) Warn about `@Transient` being not sound to use with non-nullable types - [`KT-50395`](https://youtrack.jetbrains.com/issue/KT-50395) Stdlib documentation for StringBuilder.removeRange is unclear - [`KT-36863`](https://youtrack.jetbrains.com/issue/KT-36863) Specify which element is returned from max/min functions if multiple elements are equal to min/max - [`KT-71606`](https://youtrack.jetbrains.com/issue/KT-71606) Provide Atomic and AtomicArray builtins in a bootstrap compiler - [`KT-73064`](https://youtrack.jetbrains.com/issue/KT-73064) Samplification of the Optional extensions documentation - [`KT-69545`](https://youtrack.jetbrains.com/issue/KT-69545) Kotlin/Native: Deprecate API marked with FreezingIsDeprecated to error - [`KT-61184`](https://youtrack.jetbrains.com/issue/KT-61184) Drop redundant `@Suppress` from some classes in stdlib. After stdlib migration to K2 - [`KT-72380`](https://youtrack.jetbrains.com/issue/KT-72380) Incorrect Duration parsing with extra leading zeros in components and multiple signs - [`KT-72278`](https://youtrack.jetbrains.com/issue/KT-72278) Clean up redundant stdlib code for Kotlin 2.1 - [`KT-49026`](https://youtrack.jetbrains.com/issue/KT-49026) Add Regex.replace/replaceFirst samples ##### Native - [`KT-75807`](https://youtrack.jetbrains.com/issue/KT-75807) CMP caching fails for iOS with Kotlin 2.1.20-RC2 - [`KT-70202`](https://youtrack.jetbrains.com/issue/KT-70202) Xcode 16 Linker fails with SIGBUS - [`KT-74377`](https://youtrack.jetbrains.com/issue/KT-74377) Kotlin Native: release executable crashes with error 139 - [`KT-73559`](https://youtrack.jetbrains.com/issue/KT-73559) K/Native: AndroidNativeArm64 linking fails starting from Kotlin 2.1.0 - [`KT-71976`](https://youtrack.jetbrains.com/issue/KT-71976) \[Native]\[KLIB Resolve]: compilation error if libraries have the same `unique_name` and the strategy is allow-all-with-warning or allow-first-with-warning ##### Native. Build Infrastructure - [`KT-72063`](https://youtrack.jetbrains.com/issue/KT-72063) Jars using `native` in their name are incompatible with JPMS - [`KT-70990`](https://youtrack.jetbrains.com/issue/KT-70990) Kotlin/Native: fix stdlib building task - [`KT-71820`](https://youtrack.jetbrains.com/issue/KT-71820) Update the coroutines version used in kotlin-native build infrastructure - [`KT-71261`](https://youtrack.jetbrains.com/issue/KT-71261) Kotlin/Native: enable gradle caching for runtime building tasks ##### Native. C and ObjC Import - [`KT-74043`](https://youtrack.jetbrains.com/issue/KT-74043) Drop obsolete parts of Skia (aka ad-hoc C++) import ##### Native. ObjC Export - [`KT-72673`](https://youtrack.jetbrains.com/issue/KT-72673) Native: objc2kotlin "virtual" bridges have no debug info ##### Native. Swift Export - [`KT-73623`](https://youtrack.jetbrains.com/issue/KT-73623) Swift Export: Interfaces: Add protocol printing - [`KT-72703`](https://youtrack.jetbrains.com/issue/KT-72703) Translate valueOf into static func - [`KT-72102`](https://youtrack.jetbrains.com/issue/KT-72102) Create test infra for swift export in IDE - [`KT-72096`](https://youtrack.jetbrains.com/issue/KT-72096) Create module for swift-export-in-ide - [`KT-71898`](https://youtrack.jetbrains.com/issue/KT-71898) Swift Export: support List in overrides ##### Test Infrastructure - [`KT-67281`](https://youtrack.jetbrains.com/issue/KT-67281) \[Tests] Introduce an obligatory diagnostics test directive to choose a test runner - [`KT-62472`](https://youtrack.jetbrains.com/issue/KT-62472) Remove suppressions of warnings which are presented only in K2 but not in K1 compiler in Kotlin project - [`KT-72094`](https://youtrack.jetbrains.com/issue/KT-72094) K2: switch DEBUG\_INFO\_EXPRESSION\_TYPE to regular FIR infrastructure for type rendering ##### Tools. CLI - [`KT-73319`](https://youtrack.jetbrains.com/issue/KT-73319) Migrate the main JVM CLI pipeline to the phased structure - [`KT-74099`](https://youtrack.jetbrains.com/issue/KT-74099) Add CLI argument to enable nested type aliases feature - [`KT-69384`](https://youtrack.jetbrains.com/issue/KT-69384) Add a way to force colored compiler diagnostic output - [`KT-73320`](https://youtrack.jetbrains.com/issue/KT-73320) Migrate the main JS CLI pipeline to the phased structure - [`KT-73922`](https://youtrack.jetbrains.com/issue/KT-73922) `CompileEnvironmentUtil.writeToJar` is unbuffered - [`KT-73967`](https://youtrack.jetbrains.com/issue/KT-73967) JDK 25: "IllegalArgumentException: 25-ea" with EA builds - [`KT-72927`](https://youtrack.jetbrains.com/issue/KT-72927) Combine `FlexiblePhaseConfig` and `PhaseConfig` - [`KT-73244`](https://youtrack.jetbrains.com/issue/KT-73244) `:compiler:cli-base` depends on `:compiler:ir.serialization.jvm` to read a single property - [`KT-70179`](https://youtrack.jetbrains.com/issue/KT-70179) K2: Building a file with kotlin-test-junit without junit does not include annotations - [`KT-41756`](https://youtrack.jetbrains.com/issue/KT-41756) Sanitize stack trace in 'kotlin' runner CLI script ##### Tools. Commonizer - [`KT-74623`](https://youtrack.jetbrains.com/issue/KT-74623) Drop metadata version check from KLIB commonizer ##### Tools. Compiler Plugin API - [`KT-71212`](https://youtrack.jetbrains.com/issue/KT-71212) Allow compiler plugins to write custom data to declarations metadata ##### Tools. Compiler Plugins ##### New Features - [`KT-53563`](https://youtrack.jetbrains.com/issue/KT-53563) Kotlin Lombok: Support `@SuperBuilder` - [`KT-71547`](https://youtrack.jetbrains.com/issue/KT-71547) Lombok Compiler Plugin Does Not Support `@Builder` on Constructors ##### Fixes - [`KT-73897`](https://youtrack.jetbrains.com/issue/KT-73897) PowerAssert: Implicit argument detection is brittle in a number of cases - [`KT-74315`](https://youtrack.jetbrains.com/issue/KT-74315) Kotlin Lombok: "Unresolved reference" on generating `@Builder` for static inner class where outer class is also using `@Builder` - [`KT-74102`](https://youtrack.jetbrains.com/issue/KT-74102) "Lambda cannot be cast to class kotlin.jvm.functions.Function0" in 2.1.20-Beta1 with Compose - [`KT-75159`](https://youtrack.jetbrains.com/issue/KT-75159) Compose: Missing 'FunctionKeyMeta' annotation on lamdas declared in non-composable function - [`KT-58695`](https://youtrack.jetbrains.com/issue/KT-58695) Lombok Builders's subclassing leads to 'Unresolved reference' - [`KT-73871`](https://youtrack.jetbrains.com/issue/KT-73871) PowerAssert: Comparison via operator overload results in confusing diagram - [`KT-73898`](https://youtrack.jetbrains.com/issue/KT-73898) PowerAssert: Operator calls with multiple receivers incorrectly aligned - [`KT-73870`](https://youtrack.jetbrains.com/issue/KT-73870) PowerAssert: Object should not be displayed - [`KT-73895`](https://youtrack.jetbrains.com/issue/KT-73895) jvm-abi-gen: $serializer class name is written incorrectly to InnerClasses attribute - [`KT-73349`](https://youtrack.jetbrains.com/issue/KT-73349) Migrate power-assert sources to new IR parameter API - [`KT-73366`](https://youtrack.jetbrains.com/issue/KT-73366) Migrate parcelize sources to new IR parameter API - [`KT-72824`](https://youtrack.jetbrains.com/issue/KT-72824) Kotlin power-assert plugin StringIndexOutOfBoundsException ##### Tools. Compiler plugins. Serialization - [`KT-71072`](https://youtrack.jetbrains.com/issue/KT-71072) KxSerialization: KeepGeneratedSerializer and sealed class in Map causes initialization-error - [`KT-73830`](https://youtrack.jetbrains.com/issue/KT-73830) \[Kotlin/Wasm] CompileError: WebAssembly.Module(): Compiling function [#&#8203;10198](https://github.com/JetBrains/kotlin/issues/10198):"kotlinx.serialization.$serializer.serialize" failed ##### Tools. Daemon - [`KT-73311`](https://youtrack.jetbrains.com/issue/KT-73311) "Unable to release compile session, maybe daemon is already down" flakiness - [`KT-70556`](https://youtrack.jetbrains.com/issue/KT-70556) Add support for SourcesChanges.ToBeCalculated - [`KT-72530`](https://youtrack.jetbrains.com/issue/KT-72530) The daemon has terminated unexpectedly on startup attempt [#&#8203;1](https://github.com/JetBrains/kotlin/issues/1) with error code: Unknown - [`KT-72373`](https://youtrack.jetbrains.com/issue/KT-72373) Fix naming for the new daemon symbols added after KT-69929 ##### Tools. Fleet. ObjC Export - [`KT-73237`](https://youtrack.jetbrains.com/issue/KT-73237) ObjCExport: immutable property translated as mutable ##### Tools. Gradle ##### New Features - [`KT-41409`](https://youtrack.jetbrains.com/issue/KT-41409) Gradle: Support binaries.executable for jvm targets - [`KT-58830`](https://youtrack.jetbrains.com/issue/KT-58830) Expose AdhocComponentWithVariants API on KGP generated component - [`KT-72320`](https://youtrack.jetbrains.com/issue/KT-72320) Gradle Plugin Diagnostics Reporter: add emojis to increase visibility ##### Performance Improvements - [`KT-69613`](https://youtrack.jetbrains.com/issue/KT-69613) Remove usages of `getCanonicalPath` and `getCanonicalFile` in plugins code - [`KT-68136`](https://youtrack.jetbrains.com/issue/KT-68136) Gradle: improve classloaders cache eviction ##### Fixes - [`KT-73842`](https://youtrack.jetbrains.com/issue/KT-73842) Gradle: AGP failing tests with "Failed to calculate the value of property 'generalConfigurationMetrics'" using KGP - [`KT-74394`](https://youtrack.jetbrains.com/issue/KT-74394) KGP + isolated projects: "Something has been appended to this collector already" - [`KT-75262`](https://youtrack.jetbrains.com/issue/KT-75262) Gradle test-fixtures plugin apply order breaks the project - [`KT-75277`](https://youtrack.jetbrains.com/issue/KT-75277) FUS statistics: 'java.lang.IllegalStateException: The value for this property cannot be changed any further' exception is thrown during project import - [`KT-75026`](https://youtrack.jetbrains.com/issue/KT-75026) Corrupted NonSynchronizedMetricsContainer in parallel Gradle build - [`KT-74997`](https://youtrack.jetbrains.com/issue/KT-74997) Unexpected KGP warnings about kotlin scripting plugin - [`KT-74322`](https://youtrack.jetbrains.com/issue/KT-74322) Enable source information by default in Compose compiler gradle plugin - [`KT-72337`](https://youtrack.jetbrains.com/issue/KT-72337) kotlin-android-extensions plugin should fail the build on apply - [`KT-72967`](https://youtrack.jetbrains.com/issue/KT-72967) Remove deprecated KotlinPlatformJsPlugin - [`KT-74846`](https://youtrack.jetbrains.com/issue/KT-74846) Gradle Configuration Cache miss on second build with 2.1.20-Beta2 - [`KT-74462`](https://youtrack.jetbrains.com/issue/KT-74462) Flaky Kotlin Gradle Plugin Tests: IsInIdeaEnvironmentValueSource$Inject not found - [`KT-74415`](https://youtrack.jetbrains.com/issue/KT-74415) Make composeCompiler.includeSourceInformation true by default - [`KT-73782`](https://youtrack.jetbrains.com/issue/KT-73782) KGP diagnostics reporter: emojis added to KGP warning/errors are displayed broken on Windows - [`KT-74095`](https://youtrack.jetbrains.com/issue/KT-74095) Make ToolingDiagnosticBuilder internal API - [`KT-74124`](https://youtrack.jetbrains.com/issue/KT-74124) Gradle: error message regression of incompatible Gradle version usage - [`KT-74639`](https://youtrack.jetbrains.com/issue/KT-74639) Executable binaries for JVM test cannot be created unless an additional suffix is set in Groovy - [`KT-73728`](https://youtrack.jetbrains.com/issue/KT-73728) 'generatePomFileForMavenPublication' creates pom with dependencies with 'unspecified' version - [`KT-73974`](https://youtrack.jetbrains.com/issue/KT-73974) Configuration cache when run Xcode tasks without xcode's environment - [`KT-74476`](https://youtrack.jetbrains.com/issue/KT-74476) KGP uses internal Gradle API, DefaultArtifactPublicationSet - [`KT-62273`](https://youtrack.jetbrains.com/issue/KT-62273) Use new FUS plugin in Kotlin - [`KT-72963`](https://youtrack.jetbrains.com/issue/KT-72963) Remove deprecated KotlinPlatformAndroidPlugin - [`KT-74017`](https://youtrack.jetbrains.com/issue/KT-74017) Remove kotlin.androidExtensionsPlugin.enabled flag - [`KT-73749`](https://youtrack.jetbrains.com/issue/KT-73749) KGP diagnostics reporter: emojis are duplicated if a gradle task is executed from the IDEA UI - [`KT-72467`](https://youtrack.jetbrains.com/issue/KT-72467) kotlin.sourceSets extension not added for KotlinBaseApiPlugin.createKotlinAndroidExtension() - [`KT-74143`](https://youtrack.jetbrains.com/issue/KT-74143) Gradle: Add workaround for [gradle/gradle#31881](https://github.com/gradle/gradle/issues/31881) - [`KT-72384`](https://youtrack.jetbrains.com/issue/KT-72384) Run Gradle Integration tests against Gradle 8.11 - [`KT-70150`](https://youtrack.jetbrains.com/issue/KT-70150) Android Kotlin Compile Task has ClassPath Backwards - [`KT-72495`](https://youtrack.jetbrains.com/issue/KT-72495) Warn about kotlin-compiler-embeddable loaded along KGP - [`KT-71549`](https://youtrack.jetbrains.com/issue/KT-71549) K2: NoSuchMethodError: org.jetbrains.kotlin.incremental.storage.ExternalizersKt.saveToFile with dependency locking - [`KT-67277`](https://youtrack.jetbrains.com/issue/KT-67277) Gradle: decommission properties to disable precise task outputs backup - [`KT-73795`](https://youtrack.jetbrains.com/issue/KT-73795) Fix failing checkNodeJsSetup test on Windows - [`KT-72383`](https://youtrack.jetbrains.com/issue/KT-72383) Compatibility with Gradle 8.11 release - [`KT-72394`](https://youtrack.jetbrains.com/issue/KT-72394) ProjectDependency.getDependencyProject() is deprecated in Gradle 8.11 - [`KT-72385`](https://youtrack.jetbrains.com/issue/KT-72385) Compile against Gradle API 8.11 - [`KT-71711`](https://youtrack.jetbrains.com/issue/KT-71711) KGP: Kotlin Stdlib is leaking when KGP is applied in buildSrc - [`KT-73128`](https://youtrack.jetbrains.com/issue/KT-73128) Apply Kotlinlang template for partial HTMLs - [`KT-58858`](https://youtrack.jetbrains.com/issue/KT-58858) Add KDoc documentation for Kotlin Gradle plugin API - [`KT-73076`](https://youtrack.jetbrains.com/issue/KT-73076) Kotlin Gradle Plugin API Reference: adjust settings - [`KT-72651`](https://youtrack.jetbrains.com/issue/KT-72651) Unable to use `target` for KotlinBaseApiPlugin.createKotlin(Jvm/Android)Extension() - [`KT-72303`](https://youtrack.jetbrains.com/issue/KT-72303) KGP 2.1.0-Beta2 broke compatibility with KSP - [`KT-71405`](https://youtrack.jetbrains.com/issue/KT-71405) Compose compiler gradle plugin: project.layout.file can't be used as a value of the 'stabilityConfigurationFiles' option - [`KT-71948`](https://youtrack.jetbrains.com/issue/KT-71948) KotlinJvmFactory : get rid of replaces with TODO() - [`KT-72092`](https://youtrack.jetbrains.com/issue/KT-72092) Gradle: use packed klib variant as the default when no packaging attribute is present ##### Tools. Gradle. JS - [`KT-75485`](https://youtrack.jetbrains.com/issue/KT-75485) KJS: "Module not found: Error: Can't resolve 'style-loader' and 'css-loader'" in 2.1.20-RC - [`KT-74869`](https://youtrack.jetbrains.com/issue/KT-74869) KJS: `jsBrowserProductionWebpack` does not minify output with 2.1.20-Beta2 - [`KT-74859`](https://youtrack.jetbrains.com/issue/KT-74859) Gradle configuration cache issues related to RootPackageJsonTask - [`KT-72175`](https://youtrack.jetbrains.com/issue/KT-72175) JS, Wasm: Deprecate non-Provider API in JS infrastructure extensions - [`KT-66388`](https://youtrack.jetbrains.com/issue/KT-66388) KJS / Gradle: Allow using an insecure protocol to download Node.js/Yarn when setting up project using Gradle >= 7 - [`KT-73614`](https://youtrack.jetbrains.com/issue/KT-73614) org.jetbrains.kotlin.gradle.targets.jsAbstractSetupTask.destinationProvider should be public - [`KT-72027`](https://youtrack.jetbrains.com/issue/KT-72027) JS target build fails on ARM64 Windows - [`KT-71362`](https://youtrack.jetbrains.com/issue/KT-71362) KGP/JS: moduleName is not compatible with convention plugins - [`KT-72874`](https://youtrack.jetbrains.com/issue/KT-72874) KJS: NodeJsRootExtension: "'download: Boolean' is deprecated. Use download from NodeJsExtension (not NodeJsRootExtension) instead You can find this extension after applying NodeJsPlugin. This will be removed in 2.2" - [`KT-72872`](https://youtrack.jetbrains.com/issue/KT-72872) Js, Wasm: downloadBaseUrl in NodeJsEnvSpec could not be disabled ##### Tools. Gradle. Multiplatform ##### Performance Improvements - [`KT-71888`](https://youtrack.jetbrains.com/issue/KT-71888) Default Target Hierarchy results in very large heap usage/OoM when resolving IDE dependencies in larger projects ##### Fixes - [`KT-66542`](https://youtrack.jetbrains.com/issue/KT-66542) Gradle: JVM target with `withJava()` produces a deprecation warning - [`KT-71074`](https://youtrack.jetbrains.com/issue/KT-71074) Optimize Granular Metadata Dependencies Transformation for Import after adding support for Project Isolation - [`KT-74669`](https://youtrack.jetbrains.com/issue/KT-74669) Executable binaries for JVM: a jar generated by jvmJar task isn't added to the build/install/testAppName/lib directory - [`KT-37964`](https://youtrack.jetbrains.com/issue/KT-37964) Gradle application/distribution plugin does not copy and name jar files correctly when using installDist task for multiplatform project - [`KT-30878`](https://youtrack.jetbrains.com/issue/KT-30878) It's impossible to have .java sources in a Multiplatform Gradle Project with Android, because `android()` and `jvm { withJava() }` targets can not be applied to one and the same Gradle Project - [`KT-66962`](https://youtrack.jetbrains.com/issue/KT-66962) Kapt with Kotlin Multiplatform: Cannot query the value of this provider because it has no value available - [`KT-74898`](https://youtrack.jetbrains.com/issue/KT-74898) The wording for the warning about incompatible 'application' plugin should be updated to suggest using the new binaries DSL - [`KT-72488`](https://youtrack.jetbrains.com/issue/KT-72488) Unify freeCompilerArgs property in swiftExport and compilerArgs - [`KT-74727`](https://youtrack.jetbrains.com/issue/KT-74727) Dependency resolve from a single target KMP module to another kmp module fails on non-found PSM - [`KT-75062`](https://youtrack.jetbrains.com/issue/KT-75062) Remove usage of deprecated ProjectDependency.getDependencyProject - [`KT-71130`](https://youtrack.jetbrains.com/issue/KT-71130) Enable Isolated Projects support by default for KMP - [`KT-74832`](https://youtrack.jetbrains.com/issue/KT-74832) Relax JVM target validation diagnostic in KMP/Jvm projects - [`KT-57280`](https://youtrack.jetbrains.com/issue/KT-57280) Expose Kotlin Project Structure metadata via consumable configurations instead of accessing all gradle projects directly - [`KT-72130`](https://youtrack.jetbrains.com/issue/KT-72130) Gradle Project Isolation Violation in build.gradle due to KGP - [`KT-74298`](https://youtrack.jetbrains.com/issue/KT-74298) Incorrect DSL for swift export settings under the export node - [`KT-73620`](https://youtrack.jetbrains.com/issue/KT-73620) KMP 2.1.0: Transitive dependency is broken when setting publication groupId - [`KT-72112`](https://youtrack.jetbrains.com/issue/KT-72112) KotlinNativeLink task fetches configuration that might not exist - [`KT-49155`](https://youtrack.jetbrains.com/issue/KT-49155) MPP, Gradle: Cannot use `test-retry-gradle-plugin` with Kotlin multiplatform tests - [`KT-61816`](https://youtrack.jetbrains.com/issue/KT-61816) Remove Legacy Multiplatform Gradle Plugin - [`KT-72068`](https://youtrack.jetbrains.com/issue/KT-72068) Distribution for klib cross-compilation is not downloaded during compile tasks - [`KT-64998`](https://youtrack.jetbrains.com/issue/KT-64998) Granular Metadata Dependencies Transformation is not compatible with Project Isolation - [`KT-72454`](https://youtrack.jetbrains.com/issue/KT-72454) Revert changes made in KT-69899 i.e. make kotlin.android.buildTypeAttribute.keep = false by default again - [`KT-70380`](https://youtrack.jetbrains.com/issue/KT-70380) KMM App failed to consume android binary lib - [`KT-71529`](https://youtrack.jetbrains.com/issue/KT-71529) Deprecate targetFromPreset API with an error ##### Tools. Gradle. Native - [`KT-71398`](https://youtrack.jetbrains.com/issue/KT-71398) kotlinNativeBundleConfiguration should not contain dependencies on unsupported platforms - [`KT-74403`](https://youtrack.jetbrains.com/issue/KT-74403) :commonizeNativeDistribution fails when configured native targets cannot be built on machine - [`KT-62826`](https://youtrack.jetbrains.com/issue/KT-62826) Show a warning when KGP and K/N versions mismatch - [`KT-73572`](https://youtrack.jetbrains.com/issue/KT-73572) \[Gradle] `kotlin.native.cacheKind=none` doesn't work anymore - [`KT-71722`](https://youtrack.jetbrains.com/issue/KT-71722) kotlinNativeBundleConfiguration present in JVM-only Gradle project - [`KT-72686`](https://youtrack.jetbrains.com/issue/KT-72686) Add warning about Kotlin native home conflict declaration - [`KT-71419`](https://youtrack.jetbrains.com/issue/KT-71419) Light bundle KGP IT run against a stable K/N version - [`KT-70558`](https://youtrack.jetbrains.com/issue/KT-70558) False positive up-to-date status for CInterop tasks after changes in .h files ##### Tools. Gradle. Xcode - [`KT-71535`](https://youtrack.jetbrains.com/issue/KT-71535) embedSwiftExportForXcode doesn't report configuration error about missed dependency - [`KT-72485`](https://youtrack.jetbrains.com/issue/KT-72485) Swift Export DSL exposes unused options in `binaries` section - [`KT-66894`](https://youtrack.jetbrains.com/issue/KT-66894) XCFramework task fails when name passed to xcframework DSL is different from framework's name - [`KT-65675`](https://youtrack.jetbrains.com/issue/KT-65675) XCFrameworkTask produces an xcframework with mismatched casing in embedded frameworks ##### Tools. Incremental Compile - [`KT-69333`](https://youtrack.jetbrains.com/issue/KT-69333) Remove built-in ABI snapshot implementation - [`KT-55940`](https://youtrack.jetbrains.com/issue/KT-55940) Kotlin 1.8.0 compiler hangs indefinitely - [`KT-29860`](https://youtrack.jetbrains.com/issue/KT-29860) Incremental compilation looping or incorrect results ##### Tools. JPS - [`KT-73688`](https://youtrack.jetbrains.com/issue/KT-73688) Make it possible to build and run JPS locally - [`KT-73607`](https://youtrack.jetbrains.com/issue/KT-73607) JPS incremental compilation is broken after KT-71549 - [`KT-68565`](https://youtrack.jetbrains.com/issue/KT-68565) K2: IllegalStateException: Source classes should be created separately before referencing ##### Tools. Kapt - [`KT-75202`](https://youtrack.jetbrains.com/issue/KT-75202) K2 kapt: mapped type class literal is converted incorrectly - [`KT-64385`](https://youtrack.jetbrains.com/issue/KT-64385) K2: Enable K2 KAPT by default - [`KT-71154`](https://youtrack.jetbrains.com/issue/KT-71154) Kapt tests: EXPECTED\_ERROR directive is checked incorrectly - [`KT-71776`](https://youtrack.jetbrains.com/issue/KT-71776) K2 Kapt in 2.1.0-Beta1 fails with `e: java.lang.IllegalStateException: FIR symbol "class org.jetbrains.kotlin.fir.symbols.impl.FirValueParameterSymbol" is not supported in constant evaluation` ##### Tools. Maven - [`KT-69231`](https://youtrack.jetbrains.com/issue/KT-69231) PowerAssert: Create maven plugin for power-assert ##### Tools. Scripts - [`KT-72277`](https://youtrack.jetbrains.com/issue/KT-72277) Legacy REPL implementation is still based on the old backend ##### Tools. Wasm - [`KT-72157`](https://youtrack.jetbrains.com/issue/KT-72157) Turn on custom formatters feature by default in development builds - [`KT-71361`](https://youtrack.jetbrains.com/issue/KT-71361) \[Wasm] Make all production-mode binaries optimised with binaryen ### [`v2.1.10`](https://github.com/JetBrains/kotlin/releases/tag/v2.1.10): Kotlin 2.1.10 ##### Changelog ##### Compiler - [`KT-73858`](https://youtrack.jetbrains.com/issue/KT-73858) Compose / iOS: NullPointerException on building - [`KT-73454`](https://youtrack.jetbrains.com/issue/KT-73454) K2: Fix type parameters mapping for typealiases with inner RHS - [`KT-73043`](https://youtrack.jetbrains.com/issue/KT-73043) K2 Compiler does not allow references to inner constructors with typealiases - [`KT-74040`](https://youtrack.jetbrains.com/issue/KT-74040) Compilation of inner class usage does not check the visibility of parent class during compilation in different rounds - [`KT-73339`](https://youtrack.jetbrains.com/issue/KT-73339) K2: "VerifyError: Bad type on operand stack" because of missing implicit cast on generic field receiver with star projection - [`KT-72585`](https://youtrack.jetbrains.com/issue/KT-72585) K2: Compilation failure when upgrading to Kotlin 2.0.20+: Cannot replace top-level type with star projection: S - [`KT-73399`](https://youtrack.jetbrains.com/issue/KT-73399) compile-time JVM codegen failure on a KProperty argument of a KSuspendFunction parameter - [`KT-72725`](https://youtrack.jetbrains.com/issue/KT-72725) KMP: Unsupported actualization of inherited java field in expect class - [`KT-73153`](https://youtrack.jetbrains.com/issue/KT-73153) K2: Standalone diagnostics on type arguments are not reported ##### Compose compiler - [`CMP-5680`](https://youtrack.jetbrains.com/issue/CMP-5680) Compose compiler: unexpected stability warnings for classes compiled with 2.0.10 - [`b/381407900`](https://issuetracker.google.com/issues/381407900) Avoid adding Compose annotations on synthetic classes ##### IR. Inlining - [`KT-73981`](https://youtrack.jetbrains.com/issue/KT-73981) \[2.1.10] Suppress `checkIncorrectCrossFileDeclarationAccess` warning for Compose `<class>$stable` field access ##### JavaScript - [`KT-70778`](https://youtrack.jetbrains.com/issue/KT-70778) Kotlin Js companion is undefined in production build - [`KT-73130`](https://youtrack.jetbrains.com/issue/KT-73130) KJS: Missed `break` for do/while in generated JS code - [`KT-58797`](https://youtrack.jetbrains.com/issue/KT-58797) Optimize the code generated for objects on JS and Wasm backends ##### Klibs - [`KT-70146`](https://youtrack.jetbrains.com/issue/KT-70146) \[KLIB Resolve] Don't fail on nonexistent transitive dependency - [`KT-73951`](https://youtrack.jetbrains.com/issue/KT-73951) Workaround for "Partial linkage engine may not patch some discrepancies in IR when compiling Kotlin/Native static caches" in 2.1.10 ##### Native - [`KT-73559`](https://youtrack.jetbrains.com/issue/KT-73559) K/Native: AndroidNativeArm64 linking fails starting from Kotlin 2.1.0 ##### Tools. CLI - [`KT-73967`](https://youtrack.jetbrains.com/issue/KT-73967) JDK 25: "IllegalArgumentException: 25-ea" with EA builds ##### Tools. Daemon - [`KT-73311`](https://youtrack.jetbrains.com/issue/KT-73311) "Unable to release compile session, maybe daemon is already down" flakiness ##### Tools. Gradle - [`KT-73728`](https://youtrack.jetbrains.com/issue/KT-73728) 'generatePomFileForMavenPublication' creates pom with dependencies with 'unspecified' version ##### Tools. Gradle. Multiplatform - [`KT-73620`](https://youtrack.jetbrains.com/issue/KT-73620) KMP 2.1.0: Transitive dependency is broken when setting publication groupId ##### Tools. Gradle. Native - [`KT-73572`](https://youtrack.jetbrains.com/issue/KT-73572) \[Gradle] `kotlin.native.cacheKind=none` doesn't work anymore - [`KT-71419`](https://youtrack.jetbrains.com/issue/KT-71419) Light bundle KGP IT run against a stable K/N version ### [`v2.1.0`](https://github.com/JetBrains/kotlin/releases/tag/v2.1.0): Kotlin 2.1.0 ##### Changelog ##### Analysis API ##### New Features - [`KT-68603`](https://youtrack.jetbrains.com/issue/KT-68603) KotlinDirectInheritorsProvider: add an option to ignore non-kotlin results ##### Performance Improvements - [`KT-70757`](https://youtrack.jetbrains.com/issue/KT-70757) Performance problem in KaFirVisibilityChecker for KaFirPsiJavaClassSymbol ##### Fixes - [`KT-70437`](https://youtrack.jetbrains.com/issue/KT-70437) Class reference is not resolvable - [`KT-57733`](https://youtrack.jetbrains.com/issue/KT-57733) Analysis API: Use optimized `ModuleWithDependenciesScope`s in combined symbol providers - [`KT-72389`](https://youtrack.jetbrains.com/issue/KT-72389) K2: False positive "Redundant 'protected' modifier" for protected property inside protected constructor from private or internal class - [`KT-69190`](https://youtrack.jetbrains.com/issue/KT-69190) K2: False-positive "redundant private modifier" - [`KT-64984`](https://youtrack.jetbrains.com/issue/KT-64984) Analysis API: Support Wasm target - [`KT-70375`](https://youtrack.jetbrains.com/issue/KT-70375) K2: NPE at org.jetbrains.kotlin.analysis.api.fir.symbols.KaFirNamedClassSymbolBase.createPointer - [`KT-71259`](https://youtrack.jetbrains.com/issue/KT-71259) K2 evaluator: Invalid smart cast info collecting for Code Fragments - [`KT-69360`](https://youtrack.jetbrains.com/issue/KT-69360) Lack of implicit receiver for the last statement under lambda in scripts - [`KT-70890`](https://youtrack.jetbrains.com/issue/KT-70890) Analysis API: Experiment with weak references to LL FIR/analysis sessions in session caches - [`KT-70657`](https://youtrack.jetbrains.com/issue/KT-70657) Analysis API: Inner types from classes with generics are incorrectly represented by the compiled jars - [`KT-71055`](https://youtrack.jetbrains.com/issue/KT-71055) Suspend calls inside 'analyze()' break the block guarantees - [`KT-70815`](https://youtrack.jetbrains.com/issue/KT-70815) Analysis API: Implement stop-the-world session invalidation - [`KT-69819`](https://youtrack.jetbrains.com/issue/KT-69819) K2 IDE: LHS type in callable references is unresolved when it has type arguments and is qualified - [`KT-68761`](https://youtrack.jetbrains.com/issue/KT-68761) Analysis API: Experiment with limited-size cache in `KaFirSessionProvider` - [`KT-70384`](https://youtrack.jetbrains.com/issue/KT-70384) Analysis API Standalone: The same class in the same two renamed jars is unresolved - [`KT-71067`](https://youtrack.jetbrains.com/issue/KT-71067) Exceptions from references cancel Find Usages - [`KT-69535`](https://youtrack.jetbrains.com/issue/KT-69535) Redesign 'containingSymbol' - [`KT-71025`](https://youtrack.jetbrains.com/issue/KT-71025) K2 IDE: Scopes in "importingScopeContext" have reversed ordering and "indexInTower" values - [`KT-67483`](https://youtrack.jetbrains.com/issue/KT-67483) K2 IDE: Serializable plugin causes infinite resolve recursion when there is a star import from a class with annotation call - [`KT-69416`](https://youtrack.jetbrains.com/issue/KT-69416) K2 IDE / Completion: “No classifier found” on simple value creating - [`KT-70257`](https://youtrack.jetbrains.com/issue/KT-70257) CCE: class kotlin.UInt cannot be cast to class java.lang.Number - [`KT-70376`](https://youtrack.jetbrains.com/issue/KT-70376) K2 IDE / Kotlin Debugger: IAE “Only componentN functions should be cached this way, but got: toString” on evaluating toString() method for value class - [`KT-70264`](https://youtrack.jetbrains.com/issue/KT-70264) AA: service registration via XML fails with AbstractMethodError in Lint CLI - [`KT-69950`](https://youtrack.jetbrains.com/issue/KT-69950) Analysis API: Introduce `isSubtypeOf(ClassId)` - [`KT-68625`](https://youtrack.jetbrains.com/issue/KT-68625) K2: “`lazyResolveToPhase(STATUS)` cannot be called from a transformer with a phase STATUS.” - [`KT-67665`](https://youtrack.jetbrains.com/issue/KT-67665) K2: contract violation for value class with a constructor parameter with an implicit type - [`KT-67009`](https://youtrack.jetbrains.com/issue/KT-67009) Analysis API: Add abbreviated type tests for type aliases from source modules - [`KT-69977`](https://youtrack.jetbrains.com/issue/KT-69977) KaFirFunctionalType#getAbbreviation is always null - [`KT-68341`](https://youtrack.jetbrains.com/issue/KT-68341) Analysis API: Expanded function types from libraries don't have an abbreviated type - [`KT-68857`](https://youtrack.jetbrains.com/issue/KT-68857) Analysis API: Refactor annotations - [`KT-70386`](https://youtrack.jetbrains.com/issue/KT-70386) Do not filter out overloads from different libraries in dangling files - [`KT-65552`](https://youtrack.jetbrains.com/issue/KT-65552) K2: CANNOT\_CHECK\_FOR\_ERASED in KtTypeCodeFragment - [`KT-65803`](https://youtrack.jetbrains.com/issue/KT-65803) K2: Analysis API: KtFirTypeProvider#getSubstitutedSuperTypes throws an exception in the case of "Wrong number of type arguments" - [`KT-68896`](https://youtrack.jetbrains.com/issue/KT-68896) Support VirtualFile binary dependency inputs to Analysis API modules - [`KT-69395`](https://youtrack.jetbrains.com/issue/KT-69395) K2 IDE: incorrect overload selection from binary dependencies in a shared native source set - [`KT-68573`](https://youtrack.jetbrains.com/issue/KT-68573) ISE: "Unexpected constant value (kotlin/annotation/AnnotationTarget, CLASS)" at Kt1DescUtilsKt.toKtConstantValue() - [`KT-69576`](https://youtrack.jetbrains.com/issue/KT-69576) Analysis API: FIR implementation of "isImplicitReferenceToCompanion" returns false for companion references in implicit invoke operator calls - [`KT-69568`](https://youtrack.jetbrains.com/issue/KT-69568) Analysis API: FIR implementation of "isImplicitReferenceToCompanion" returns true for non-companion references in qualified calls - [`KT-69436`](https://youtrack.jetbrains.com/issue/KT-69436) Analysis API Platform: Encapsulate `LLFirDeclarationModificationService` as an engine service - [`KT-63004`](https://youtrack.jetbrains.com/issue/KT-63004) K2: Analysis API: Design API for querying declarations generated by compiler plugins (similar to indices) - [`KT-69452`](https://youtrack.jetbrains.com/issue/KT-69452) AA FIR: wrong source PSI after compile-time evaluation - [`KT-69598`](https://youtrack.jetbrains.com/issue/KT-69598) AA: definitely not-null type at receiver position should be wrapped in parenthesis - [`KT-60484`](https://youtrack.jetbrains.com/issue/KT-60484) Analysis API: add support for KtType pointers similar to KtSymbolPointer - [`KT-68884`](https://youtrack.jetbrains.com/issue/KT-68884) Analysis API: Rename/deprecate/remove declarations as part of Stabilization - [`KT-69453`](https://youtrack.jetbrains.com/issue/KT-69453) AA FIR: miss to handle expected type of lambda with explicit label - [`KT-69533`](https://youtrack.jetbrains.com/issue/KT-69533) Protect implementation parts of Analysis API with opt-in annotations ##### Analysis API. FIR ##### Performance Improvements - [`KT-71566`](https://youtrack.jetbrains.com/issue/KT-71566) FirElementBuilder#getFirForNonKtFileElement should iterate a Psi file over and over - [`KT-71224`](https://youtrack.jetbrains.com/issue/KT-71224) Analysis API: `FirElementFinder.collectDesignationPath` relies on naive iteration through FIR files ##### Fixes - [`KT-70327`](https://youtrack.jetbrains.com/issue/KT-70327) Analysis API: Batch inspection causes deadlock in `ValueWithPostCompute` - [`KT-69070`](https://youtrack.jetbrains.com/issue/KT-69070) Analysis API: Querying declared member scope for Java symbols results in exception in some use cases - [`KT-68268`](https://youtrack.jetbrains.com/issue/KT-68268) LLSealedInheritorsProvider: reduce scope to kotlin files - [`KT-69671`](https://youtrack.jetbrains.com/issue/KT-69671) TYPES phase contract violation through JavaSymbolProvider - [`KT-70624`](https://youtrack.jetbrains.com/issue/KT-70624) Declaration symbols from code fragments are treated as not local - [`KT-70662`](https://youtrack.jetbrains.com/issue/KT-70662) NPE: FirLazyBodiesCalculatorKt.calculateLazyBodyForProperty - [`KT-70859`](https://youtrack.jetbrains.com/issue/KT-70859) Do not fail highlighting due to resolution problems - [`KT-70474`](https://youtrack.jetbrains.com/issue/KT-70474) FirLazyResolveContractViolationException from JavaSymbolProvider - [`KT-70323`](https://youtrack.jetbrains.com/issue/KT-70323) FirLazyResolveContractViolationException: `lazyResolveToPhase(TYPES)` cannot be called from a transformer with a phase TYPES - [`KT-71567`](https://youtrack.jetbrains.com/issue/KT-71567) LLFirCompilerRequiredAnnotationsTargetResolver should calculate annotation arguments on demand - [`KT-71584`](https://youtrack.jetbrains.com/issue/KT-71584) `getNonLocalContainingOrThisDeclaration` treats KtParameter from functional type as non-local ##### Analysis API. Light Classes ##### Performance Improvements - [`KT-69998`](https://youtrack.jetbrains.com/issue/KT-69998) Drop redundant cache from ClassInnerStuffCache ##### Fixes - [`KT-69833`](https://youtrack.jetbrains.com/issue/KT-69833) Support value classes - [`KT-71693`](https://youtrack.jetbrains.com/issue/KT-71693) Wrong name mangling for JvmField class property and companion property clash - [`KT-71469`](https://youtrack.jetbrains.com/issue/KT-71469) KtLightClassForDecompiledDeclaration: missed kotlinOrigin - [`KT-70710`](https://youtrack.jetbrains.com/issue/KT-70710) Provide light classes for KMP modules in Android Lint - [`KT-70548`](https://youtrack.jetbrains.com/issue/KT-70548) SLC: text of class object access expression is not the same as raw text - [`KT-70572`](https://youtrack.jetbrains.com/issue/KT-70572) SLC: missing `isInheritor` implementation for type parameter - [`KT-70491`](https://youtrack.jetbrains.com/issue/KT-70491) SLC: inconsistent source PSI of no-arg constructor for all default values - [`KT-70458`](https://youtrack.jetbrains.com/issue/KT-70458) SLC: missed `auxiliaryOriginalElement` for delegated property - [`KT-70232`](https://youtrack.jetbrains.com/issue/KT-70232) Support a companion object inside value classes - [`KT-70349`](https://youtrack.jetbrains.com/issue/KT-70349) `@delegate`:\` annotations are missed for light class fields - [`KT-68328`](https://youtrack.jetbrains.com/issue/KT-68328) Move KtLightClassBase to ULC ##### Analysis API. Providers and Caches - [`KT-65618`](https://youtrack.jetbrains.com/issue/KT-65618) K2: resulted FirClass.psi != requested PsiClass from completion - [`KT-69292`](https://youtrack.jetbrains.com/issue/KT-69292) K2: Analysis API: A property's `MUST_BE_INITIALIZED` diagnostic is not updated after changing `field` usage in an accessor - [`KT-71468`](https://youtrack.jetbrains.com/issue/KT-71468) Drop redundant logic from LLFirJavaFacadeForBinaries - [`KT-71700`](https://youtrack.jetbrains.com/issue/KT-71700) Cache result of resolveToCall - [`KT-71520`](https://youtrack.jetbrains.com/issue/KT-71520) Analysis API: `LLFirNativeForwardDeclarationsSymbolProvider` spends a lot of time in indices ##### Analysis API. Standalone - [`KT-65110`](https://youtrack.jetbrains.com/issue/KT-65110) Analysis API: In Standalone mode the order of symbols is unstable ##### Analysis API. Stubs and Decompilation - [`KT-71565`](https://youtrack.jetbrains.com/issue/KT-71565) KtClassOrObject should use isLocal from greenStub ##### Analysis API. Surface ##### New Features - [`KT-69960`](https://youtrack.jetbrains.com/issue/KT-69960) `resolveToCallCandidates` should support operators - [`KT-69961`](https://youtrack.jetbrains.com/issue/KT-69961) `resolveToCallCandidates` should support properties ##### Performance Improvements - [`KT-70529`](https://youtrack.jetbrains.com/issue/KT-70529) KaSymbol: reduce the number of `cached` usages - [`KT-70165`](https://youtrack.jetbrains.com/issue/KT-70165) Introduce PSI-based `KaSymbol`s for K2 ##### Fixes - [`KT-69371`](https://youtrack.jetbrains.com/issue/KT-69371) Analysis API: expose only interfaces/abstract classes for the resolution API - [`KT-69696`](https://youtrack.jetbrains.com/issue/KT-69696) KaSymbolByFirBuilder should filter call-site substitutions - [`KT-69679`](https://youtrack.jetbrains.com/issue/KT-69679) KaDelegatedConstructorCall should have substituted signature - [`KT-70206`](https://youtrack.jetbrains.com/issue/KT-70206) `anonymousSymbol` API throws an exception for regular functions - [`KT-69699`](https://youtrack.jetbrains.com/issue/KT-69699) Receiver type is not substituted in the case of conflict declarations - [`KT-69381`](https://youtrack.jetbrains.com/issue/KT-69381) Analysis API: Investigate the viability of current `KaSymbol` caches - [`KT-70199`](https://youtrack.jetbrains.com/issue/KT-70199) K2: ConcurrentModificationException at FirCallCompleter$LambdaAnalyzerImpl.analyzeAndGetLambdaReturnArguments - [`KT-70661`](https://youtrack.jetbrains.com/issue/KT-70661) Invalid FirDeclarationOrigin ScriptTopLevelDestructuringDeclarationContainer - [`KT-70663`](https://youtrack.jetbrains.com/issue/KT-70663) KaFirDestructuringDeclarationSymbol: Failed requirement - [`KT-63490`](https://youtrack.jetbrains.com/issue/KT-63490) Analysis API: Accessing the Analysis API should be prohibited during dumb mode - [`KT-63390`](https://youtrack.jetbrains.com/issue/KT-63390) K2: Analysis API: add annotations to KtClassInitializerSymbol - [`KT-55124`](https://youtrack.jetbrains.com/issue/KT-55124) Design common ancestor for KtValueParameter and KtReceiverParameterSymbol - [`KT-71731`](https://youtrack.jetbrains.com/issue/KT-71731) directlyOverridenSymbols/allOverridenSymbols works incorrectly for intersection overrides ##### Apple Ecosystem - [`KT-66262`](https://youtrack.jetbrains.com/issue/KT-66262) Deprecate and remove support for bitcode embedding from the Kotlin Gradle plugin - [`KT-66894`](https://youtrack.jetbrains.com/issue/KT-66894) XCFramework task fails when name passed to xcframework DSL is different from framework's name - [`KT-65675`](https://youtrack.jetbrains.com/issue/KT-65675) XCFrameworkTask produces an xcframework with mismatched casing in embedded frameworks - [`KT-69119`](https://youtrack.jetbrains.com/issue/KT-69119) xcodeVersion task fails if Xcode isn't installed and apple-specific native targets aren't declared ##### Backend. Wasm ##### New Features - [`KT-70786`](https://youtrack.jetbrains.com/issue/KT-70786) Improve DX of the variable view during debugging in Chrome/Firefox for Kotlin/Wasm - [`KT-70331`](https://youtrack.jetbrains.com/issue/KT-70331) Support incremental compilation for the Wasm backend - [`KT-71686`](https://youtrack.jetbrains.com/issue/KT-71686) K/Wasm: Add functions to convert between Kotlin and JS array types - [`KT-68185`](https://youtrack.jetbrains.com/issue/KT-68185) \[WasmJs] Attach js exception object to JsException ##### Fixes - [`KT-71294`](https://youtrack.jetbrains.com/issue/KT-71294) Wasm Artifacts/Resource are being loaded relatively instead of absolutely - [`KT-71473`](https://youtrack.jetbrains.com/issue/KT-71473) K/Wasm: Use `--closed-world` and related options for Binaryen - [`KT-72297`](https://youtrack.jetbrains.com/issue/KT-72297) \[Wasm] Unused associated object class lead to compiler fail - [`KT-72156`](https://youtrack.jetbrains.com/issue/KT-72156) custom-formatters.js exists in JAR after publishToMavenLocal but not in the published artifact in Maven public - [`KT-65799`](https://youtrack.jetbrains.com/issue/KT-65799) K/Wasm: remove default exports from wasm exports - [`KT-71800`](https://youtrack.jetbrains.com/issue/KT-71800) Wasm compiler: Fix member generation for data classes with an array-type property - [`KT-71580`](https://youtrack.jetbrains.com/issue/KT-71580) String::toFloat on wasm behaves differently compared to other targets - [`KT-71523`](https://youtrack.jetbrains.com/issue/KT-71523) K/Wasm: cleanup after fix for KT-71474 - [`KT-71475`](https://youtrack.jetbrains.com/issue/KT-71475) K/Wasm: KClass::qualifiedName returns incorrect result for nested or companion objects - [`KT-71474`](https://youtrack.jetbrains.com/issue/KT-71474) K/Wasm: KProperty\*Impl equals work incorrectly for clabbale reference created in different files or modules - [`KT-61130`](https://youtrack.jetbrains.com/issue/KT-61130) K/Wasm: Function signatures may clash with base class internal methods from a friend module - [`KT-70820`](https://youtrack.jetbrains.com/issue/KT-70820) \[Kotlin QG] wasm-validator fails when running compile\[...]KotlinWasmJsOptimize - [`KT-70819`](https://youtrack.jetbrains.com/issue/KT-70819) \[Kotlin QG] node.js fails when running wasmJs\[...]Test KGP tasks - [`KT-70394`](https://youtrack.jetbrains.com/issue/KT-70394) Investigate increased wasm binary size after switching stdlib compilation to K2 - [`KT-69627`](https://youtrack.jetbrains.com/issue/KT-69627) Remove `create###Array` functions from WASM stdlib - [`KT-68509`](https://youtrack.jetbrains.com/issue/KT-68509) Fatal: error validating input in compileProductionExecutableKotlinWasmJsOptimize ##### Compiler ##### New Features - [`KT-71094`](https://youtrack.jetbrains.com/issue/KT-71094) Kotlin/Native incremental compilation: fail compilation if cache build failed - [`KT-21908`](https://youtrack.jetbrains.com/issue/KT-21908) Support 'when' exhaustiveness checking for generic type parameter with sealed class upper bound - [`KT-70679`](https://youtrack.jetbrains.com/issue/KT-70679) Kotlin/Native: fill WritableTypeInfo from Swift Export type mapping - [`KT-59798`](https://youtrack.jetbrains.com/issue/KT-59798) Builder inference is not working when combined with `let` expression - [`KT-54227`](https://youtrack.jetbrains.com/issue/KT-54227) Cannot use nullable Nothing as reified type parameter - [`KT-71430`](https://youtrack.jetbrains.com/issue/KT-71430) Kotlin-to-Java direct actualization implementation - [`KT-68163`](https://youtrack.jetbrains.com/issue/KT-68163) Expose supplementary compiler warnings via CLI - [`KT-69321`](https://youtrack.jetbrains.com/issue/KT-69321) Swift export: enable auto-linkage of binary dependencies - [`KT-11526`](https://youtrack.jetbrains.com/issue/KT-11526) Improve diagnostics for "X overrides nothing" - [`KT-49710`](https://youtrack.jetbrains.com/issue/KT-49710) False positive NO\_ELSE\_IN\_WHEN with nullable type as receiver - [`KT-69729`](https://youtrack.jetbrains.com/issue/KT-69729) Support calling super interface Java methods from Kotlin interface - [`KT-69508`](https://youtrack.jetbrains.com/issue/KT-69508) Improve "Public-API inline function cannot access non-public-API" check for the inline property accessors ##### Performance Improvements - [`KT-71353`](https://youtrack.jetbrains.com/issue/KT-71353) FP Kotlin performance degradation (around Cone types hierarchy changes) - [`KT-71159`](https://youtrack.jetbrains.com/issue/KT-71159) \[K2] OOM on large enum classes with fields - [`KT-69718`](https://youtrack.jetbrains.com/issue/KT-69718) K2: Check for jvm nullability annotations in fir2ir is slow - [`KT-68417`](https://youtrack.jetbrains.com/issue/KT-68417) Native: LLVM 16 inliner is slow on K/N-produced modules - [`KT-63971`](https://youtrack.jetbrains.com/issue/KT-63971) K2: Redundant `@ParameterName` in abbreviated type in metadata ##### Fixes - [`KT-71550`](https://youtrack.jetbrains.com/issue/KT-71550) JVM IR: NPE on identity equals of boolean true with null - [`KT-72214`](https://youtrack.jetbrains.com/issue/KT-72214) -fpass-plugin (clangFlags) is not applied since Kotlin 2.0.20 - [`KT-68933`](https://youtrack.jetbrains.com/issue/KT-68933) CompilationException: Back-end: Could not get inlined class - [`KT-72255`](https://youtrack.jetbrains.com/issue/KT-72255) Promote jspecify from warning to error - [`KT-73065`](https://youtrack.jetbrains.com/issue/KT-73065) CCE with context receivers - [`KT-61033`](https://youtrack.jetbrains.com/issue/KT-61033) K2: implement a diagnostic corresponding to K1's MISSING\_BUILT\_IN\_DECLARATION - [`KT-72345`](https://youtrack.jetbrains.com/issue/KT-72345) K2: Method 'get' without `@Override` annotation not called - [`KT-71260`](https://youtrack.jetbrains.com/issue/KT-71260) K2: Internal compiler error in IrFakeOverrideSymbolBase.getOwner when there is no actual for expect - [`KT-72996`](https://youtrack.jetbrains.com/issue/KT-72996) false-positive unresolved reference error on an overloaded callable reference in a lambda return position on the left-hand size of an elvis operator - [`KT-72552`](https://youtrack.jetbrains.com/issue/KT-72552) AutoboxingTransformer fails on during linkage on nested lambdas with cinteroped types - [`KT-71751`](https://youtrack.jetbrains.com/issue/KT-71751) K2: Skipping code in last statement of lambda - [`KT-71121`](https://youtrack.jetbrains.com/issue/KT-71121) Kotlin/JS incremental compilation fails with KotlinIllegalArgumentExceptionWithAttachments - [`KT-60521`](https://youtrack.jetbrains.com/issue/KT-60521) Drop language versions 1.4 and 1.5 - [`KT-70461`](https://youtrack.jetbrains.com/issue/KT-70461) K2: "Inline class types should have the same representation" caused by value class and smart check - [`KT-72238`](https://youtrack.jetbrains.com/issue/KT-72238) Argument type mismatch in builder inside extension function after ?: - [`KT-70306`](https://youtrack.jetbrains.com/issue/KT-70306) K2: Lambdas are unserializable: inferred from Java param `? super I` - [`KT-67383`](https://youtrack.jetbrains.com/issue/KT-67383) Incorrect optimisation when optimising for loop with UByte - [`KT-68653`](https://youtrack.jetbrains.com/issue/KT-68653) Switch latest stable language version in Kotlin project to 2.1 - [`KT-71708`](https://youtrack.jetbrains.com/issue/KT-71708) False negative UNSUPPORTED for collection literals as trailing return value - [`KT-72281`](https://youtrack.jetbrains.com/issue/KT-72281) K/N: "Failed to wait for cache to be built" - [`KT-72017`](https://youtrack.jetbrains.com/issue/KT-72017) Enum property reflection returning null KClassifier property for Enum classes defined inside Kotlin Scripts - [`KT-69040`](https://youtrack.jetbrains.com/issue/KT-69040) PCLA: deal with "deep" calls that can be fully analyzed properly - [`KT-69920`](https://youtrack.jetbrains.com/issue/KT-69920) K2: java.lang.IllegalArgumentException: FirNamedArgumentExpressionImpl.replaceConeTypeOrNull() during Space project compilation - [`KT-69549`](https://youtrack.jetbrains.com/issue/KT-69549) Try to move callable reference transformation earlier in pipeline - [`KT-63944`](https://youtrack.jetbrains.com/issue/KT-63944) Kotlin/Native: Cache flavor selection doesn't respect GC kind - [`KT-71649`](https://youtrack.jetbrains.com/issue/KT-71649) K2: Put operator on mutableMap\<T?, V>() causes crashes on null key - [`KT-70667`](https://youtrack.jetbrains.com/issue/KT-70667) K2: "Type parameter \* has inconsistent bounds" caused by wildcard and where-clause - [`KT-70562`](https://youtrack.jetbrains.com/issue/KT-70562) `@SubclassOptInRequired` cannot accept multiple experimental marker - [`KT-69407`](https://youtrack.jetbrains.com/issue/KT-69407) K2: Compiler crash (Shouldn't be here) due to unresolved reference in FirProjectionRelationChecker - [`KT-71508`](https://youtrack.jetbrains.com/issue/KT-71508) JAVA\_CLASS\_INHERITS\_KT\_PRIVATE\_CLASS isn't reported when java class is inherited from an effectively private class - [`KT-72178`](https://youtrack.jetbrains.com/issue/KT-72178) K2: "Unexpected FirPlaceholderProjectionImpl" exception when using "\_" as key type in EnumMap - [`KT-70407`](https://youtrack.jetbrains.com/issue/KT-70407) Error/warning message for `@SubclassOptInRequired`-annotated class should provide more context - [`KT-72302`](https://youtrack.jetbrains.com/issue/KT-72302) K2: no error on type operator in annotation parameter default value - [`KT-58820`](https://youtrack.jetbrains.com/issue/KT-58820) OPT\_IN\_USAGE\_ERROR's message text does not account for SubclassOptInRequired - [`KT-71662`](https://youtrack.jetbrains.com/issue/KT-71662) PCLA: a type variable is not fixed on demand to a type containing a not-fixed type variable - [`KT-69739`](https://youtrack.jetbrains.com/issue/KT-69739) K2: "KotlinIllegalArgumentExceptionWithAttachments: Unexpected FirPlaceholderProjectionImpl" caused by unresolved references - [`KT-72154`](https://youtrack.jetbrains.com/issue/KT-72154) Dokka fails with `not array: KClass<out Annotation>` on Kotlin 2.1.20-dev with `@SubclassOptInRequired` - [`KT-70756`](https://youtrack.jetbrains.com/issue/KT-70756) K2. Compiler crash with FileAnalysisException on incorrect symbol in nesting lambda - [`KT-72173`](https://youtrack.jetbrains.com/issue/KT-72173) K2: simple object names from root package are resolved without imports in non-root packages when used as values - [`KT-71480`](https://youtrack.jetbrains.com/issue/KT-71480) JAVA\_CLASS\_INHERITS\_KT\_PRIVATE\_CLASS isn't reported while java object isn't created - [`KT-71034`](https://youtrack.jetbrains.com/issue/KT-71034) Failing compiler/testData/codegen/box/inlineClasses/kt70461.kt - [`KT-71016`](https://youtrack.jetbrains.com/issue/KT-71016) K/Wasm: Failing compiler/testData/codegen/box/inlineClasses/kt70461.kt - [`KT-52469`](https://youtrack.jetbrains.com/issue/KT-52469) Deprecate reified type parameter instantiating into intersection types - [`KT-71753`](https://youtrack.jetbrains.com/issue/KT-71753) PCLA: false-negative operator ambiguity error on fixing a type variable on demand for an operator assignment - [`KT-59871`](https://youtrack.jetbrains.com/issue/KT-59871) K2: Fix introduced diagnostics - [`KT-71563`](https://youtrack.jetbrains.com/issue/KT-71563) 'llegalStateException: Source classes should be created separately before referencing' when actualized through typealias and java direct actualization - [`KT-64741`](https://youtrack.jetbrains.com/issue/KT-64741) Avoid leaking ConeTypeVariable types in diagnostics from PCLA - [`KT-60447`](https://youtrack.jetbrains.com/issue/KT-60447) Builder inference fails to infer generic type argument from local class - [`KT-69170`](https://youtrack.jetbrains.com/issue/KT-69170) K2: "Unresolved reference" caused by generics and fun interfaces - [`KT-71756`](https://youtrack.jetbrains.com/issue/KT-71756) K2 evaluator: broken resolve of private members during debug of Kotlin project itself - [`KT-68893`](https://youtrack.jetbrains.com/issue/KT-68893) Invalid annotation in contract crashes with K2 - [`KT-71490`](https://youtrack.jetbrains.com/issue/KT-71490) K2: missing REDUNDANT\_ELSE\_IN\_WHEN - [`KT-64403`](https://youtrack.jetbrains.com/issue/KT-64403) Implement BlackBoxCodegenTestSpecGenerated for K2 - [`KT-71551`](https://youtrack.jetbrains.com/issue/KT-71551) JVM IR K1: NPE on generating a function imported from an object from another module - [`KT-71210`](https://youtrack.jetbrains.com/issue/KT-71210) K2: false negative FUNCTION\_CALL\_EXPECTED / NESTED\_CLASS\_ACCESSED\_VIA\_INSTANCE\_REFERENCE with companion objects - [`KT-71528`](https://youtrack.jetbrains.com/issue/KT-71528) K2/JVM: ClassCastException around Array\<Nothing?> - [`KT-71228`](https://youtrack.jetbrains.com/issue/KT-71228) K2: "IllegalArgumentException: Failed requirement" caused by lambda parameter and class type - [`KT-71738`](https://youtrack.jetbrains.com/issue/KT-71738) K2: False negative REDECLARATION inside object expression - [`KT-71701`](https://youtrack.jetbrains.com/issue/KT-71701) K2: false positive CAN\_BE\_VAL with lateinit and non-in-place lambda - [`KT-68694`](https://youtrack.jetbrains.com/issue/KT-68694) K2 IDE / Kotlin Debugger: AE “Unresolved reference: \<HIDDEN: samples/gen/classes/enum class/EnumClass.lam is invisible” on evaluating private lambda inside enum entry - [`KT-70970`](https://youtrack.jetbrains.com/issue/KT-70970) K2 IDE / Kotlin Debugger: AE “Only assignable IrValues can be set” on calling overloaded inc() operator on interface - [`KT-70824`](https://youtrack.jetbrains.com/issue/KT-70824) K2: NoSuchFieldException when evaluating private extension property - [`KT-70390`](https://youtrack.jetbrains.com/issue/KT-70390) K2 IDE / Kotlin Debugger: can't invoke lambda from private class during evaluation - [`KT-68701`](https://youtrack.jetbrains.com/issue/KT-68701) K2 IDE / Kotlin Debugger: AE “ERROR\_CALL 'Unresolved reference: \<HIDDEN: /privateLambda is invisible>#' type=IrErrorType(null)” on evaluating private top-level lambda - [`KT-68695`](https://youtrack.jetbrains.com/issue/KT-68695) K2 IDE / Kotlin Debugger: AE “Unsupported callable reference” on evaluating ::lateinitStr on private lateinit property - [`KT-70861`](https://youtrack.jetbrains.com/issue/KT-70861) K2 IDE / Kotlin Debugger: can't evaluate Clazz::class call for private class - [`KT-34911`](https://youtrack.jetbrains.com/issue/KT-34911) Improve error message for WRONG\_ANNOTATION\_TARGET: list applicable targets - [`KT-71601`](https://youtrack.jetbrains.com/issue/KT-71601) K2: When with a subject of type dynamic always considered exhaustive - [`KT-33091`](https://youtrack.jetbrains.com/issue/KT-33091) Kotlin/Native: Compiler crashes if an external class is declared - [`KT-59651`](https://youtrack.jetbrains.com/issue/KT-59651) K1/K2: Assertion error on external enum usage attempt - [`KT-69939`](https://youtrack.jetbrains.com/issue/KT-69939) Extract a category of internal FIR checkers from supplementary FIR checkers - [`KT-70850`](https://youtrack.jetbrains.com/issue/KT-70850) Pull down typeArguments from ConeKotlinType to ConeClassLikeType - [`KT-71117`](https://youtrack.jetbrains.com/issue/KT-71117) K2: "IllegalArgumentException: No type for StarProjection" with star projection and function type - [`KT-71251`](https://youtrack.jetbrains.com/issue/KT-71251) Native & JS K2: Missing check for calling `isInitialized` inside inline fun - [`KT-70161`](https://youtrack.jetbrains.com/issue/KT-70161) Native: extracting LLVM 16 on Linux makes the compiler print many "Ignoring unknown extended header keyword 'LIBARCHIVE.creationtime'" messages - [`KT-71215`](https://youtrack.jetbrains.com/issue/KT-71215) K2: UB due to the erroneous greening of the red code with multiple delegation with java - [`KT-59386`](https://youtrack.jetbrains.com/issue/KT-59386) K2: Missing CONSTANT\_EXPECTED\_TYPE\_MISMATCH - [`KT-69564`](https://youtrack.jetbrains.com/issue/KT-69564) Make using -Xuse-k2 compiler flag an error - [`KT-69756`](https://youtrack.jetbrains.com/issue/KT-69756) TypeOfLowering: don't create constant object nodes before inlining - [`KT-66328`](https://youtrack.jetbrains.com/issue/KT-66328) K2: implement an error for KT-66324 - [`KT-71046`](https://youtrack.jetbrains.com/issue/KT-71046) K/N: a separate lowering to convert function reference to IrConstantObject - [`KT-69223`](https://youtrack.jetbrains.com/issue/KT-69223) Drop parallel lowering mode in JVM backend - [`KT-70260`](https://youtrack.jetbrains.com/issue/KT-70260) `@JsPlainObject`: improve compiler error if a method is present - [`KT-67739`](https://youtrack.jetbrains.com/issue/KT-67739) Improve error message when JDK used in -Xjdk-release has corrupted class files - [`KT-63964`](https://youtrack.jetbrains.com/issue/KT-63964) K2: different naming of classes defined in script in metadata - [`KT-70014`](https://youtrack.jetbrains.com/issue/KT-70014) Common inference: introduce rigidTypeMarker - [`KT-71352`](https://youtrack.jetbrains.com/issue/KT-71352) Cannot load script definition class org.gradle.kotlin.dsl.KotlinProjectScriptTemplate - [`KT-63502`](https://youtrack.jetbrains.com/issue/KT-63502) Getting java.lang.ClassNotFoundException: javaslang.λ during compilation - [`KT-66316`](https://youtrack.jetbrains.com/issue/KT-66316) Kotlin/Native: make `@Escapes` annotation required for all external functions - [`KT-69653`](https://youtrack.jetbrains.com/issue/KT-69653) Prohibit exposing types via type parameters' bounds - [`KT-68451`](https://youtrack.jetbrains.com/issue/KT-68451) Inconsistent rules of CFA in enum initialization block - [`KT-70893`](https://youtrack.jetbrains.com/issue/KT-70893) K2: Bogus NO\_COMPANION\_OBJECT on resolve to private qualifier - [`KT-70965`](https://youtrack.jetbrains.com/issue/KT-70965) FIR/AA: Initializers for Java annotation arguments mapping capture use-site sessions - [`KT-63945`](https://youtrack.jetbrains.com/issue/KT-63945) K2: Prevent possible diagnostic loss - [`KT-64453`](https://youtrack.jetbrains.com/issue/KT-64453) K2: Implement ComposeLikeIr...TestGenerated for K2 - [`KT-30424`](https://youtrack.jetbrains.com/issue/KT-30424) Confusing error message "modality is different" - [`KT-70846`](https://youtrack.jetbrains.com/issue/KT-70846) Replace `ConeKotlinType.nullability` with `isMarkedNullable` on specific types - [`KT-56720`](https://youtrack.jetbrains.com/issue/KT-56720) K2: false positive MANY\_IMPL\_MEMBER\_NOT\_IMPLEMENTED in case of delegation in diamond inheritance - [`KT-69937`](https://youtrack.jetbrains.com/issue/KT-69937) Define & enforce user-friendly terminology for extended checkers - [`KT-64406`](https://youtrack.jetbrains.com/issue/KT-64406) K2: Implement CompileKotlinAgainstJavaTestGenerated for K2 - [`KT-69938`](https://youtrack.jetbrains.com/issue/KT-69938) Validate sets of default compiler warnings and supplementary compiler warnings - [`KT-68971`](https://youtrack.jetbrains.com/issue/KT-68971) Investigate suspicious fragmentation of FIR trees for string literals with interpolation - [`KT-71073`](https://youtrack.jetbrains.com/issue/KT-71073) Multi-dollar strings: parser grabs too much if backticks follow a short sequence of '$' - [`KT-71213`](https://youtrack.jetbrains.com/issue/KT-71213) Rethrow exceptions in checkers with some useful attachments - [`KT-70395`](https://youtrack.jetbrains.com/issue/KT-70395) K2: "Captured Type does not have a classifier" caused by `out` type and interface hierarchy - [`KT-70133`](https://youtrack.jetbrains.com/issue/KT-70133) K2: false negative UNINITIALIZED\_VARIABLE when postponed lambda is created before initialization - [`KT-70625`](https://youtrack.jetbrains.com/issue/KT-70625) K2: ClassCastException caused by function reference, star projection and invariant type parameter - [`KT-70835`](https://youtrack.jetbrains.com/issue/KT-70835) K2: "TYPE\_MISMATCH" caused by operator assignment - [`KT-70366`](https://youtrack.jetbrains.com/issue/KT-70366) K2: "KotlinIllegalArgumentExceptionWithAttachments: Failed to find functional supertype for class " - [`KT-68834`](https://youtrack.jetbrains.com/issue/KT-68834) Parentheses don't influence calls of any convention operators (except invoke operator) after safe navigation operator - [`KT-70358`](https://youtrack.jetbrains.com/issue/KT-70358) K2: "java.lang.IllegalArgumentException: No type for StarProjection" when using a star projection on a function type - [`KT-69298`](https://youtrack.jetbrains.com/issue/KT-69298) K2: "Initializer type mismatch" caused by elvis operator type inference for nullable typealias - [`KT-71189`](https://youtrack.jetbrains.com/issue/KT-71189) K2: emit 'DELEGATE\_SPECIAL\_FUNCTION\_MISSING' and 'DELEGATE\_SPECIAL\_FUNCTION\_NONE\_APPLICABLE' on 'by' keyword - [`KT-71178`](https://youtrack.jetbrains.com/issue/KT-71178) K2: False negative NO\_ELSE\_IN\_WHEN in when over nullable type with `!is Nothing?` check - [`KT-70812`](https://youtrack.jetbrains.com/issue/KT-70812) False positive NO\_ELSE\_IN\_WHEN with nullable type argument as subject - [`KT-70947`](https://youtrack.jetbrains.com/issue/KT-70947) False positive NO\_ELSE\_IN\_WHEN with DNN subject and nullable sealed class upper bound - [`KT-70752`](https://youtrack.jetbrains.com/issue/KT-70752) Review diagnostics with whole declaration as range - [`KT-71160`](https://youtrack.jetbrains.com/issue/KT-71160) K2: Rendering of flexible collection types and arrays is too verbose - [`KT-61227`](https://youtrack.jetbrains.com/issue/KT-61227) Definitely non-nullable types cause "Any was expected" for `@Nullable` parameter - [`KT-69389`](https://youtrack.jetbrains.com/issue/KT-69389) K2: NONE\_APPLICABLE instead of more useful "type mismatch" error with overloads and parameter nullability mismatch - [`KT-69829`](https://youtrack.jetbrains.com/issue/KT-69829) Missed UNRESOLVED\_LABEL for label in returns and loops - [`KT-61223`](https://youtrack.jetbrains.com/issue/KT-61223) JDK 21: new addFirst/addLast and putFirst/putLast methods allow adding nullable value for non-null types - [`KT-66742`](https://youtrack.jetbrains.com/issue/KT-66742) Supertypes with inaccessible type arguments are allowed - [`KT-62906`](https://youtrack.jetbrains.com/issue/KT-62906) Type system: consider changing simple type & DNN type relation - [`KT-70104`](https://youtrack.jetbrains.com/issue/KT-70104) Update the error message for calling super Java interface methods case - [`KT-69794`](https://youtrack.jetbrains.com/issue/KT-69794) K2: Wrong target is reported for EXPOSED\_SUPER\_INTERFACE diagnostic - [`KT-70724`](https://youtrack.jetbrains.com/issue/KT-70724) False-positive UNINITIALIZED\_VARIABLE for inline constructor with late-initialized variables - [`KT-70749`](https://youtrack.jetbrains.com/issue/KT-70749) False-positive UNINITIALIZED\_VARIABLE for inline fun with crossinline modifier - [`KT-65805`](https://youtrack.jetbrains.com/issue/KT-65805) Migrate builtins serializer to K2 - [`KT-71004`](https://youtrack.jetbrains.com/issue/KT-71004) FirSignatureEnhancement#enhance mutates attributes on the original function - [`KT-70813`](https://youtrack.jetbrains.com/issue/KT-70813) Questionable behavior for calls on ILT receivers - [`KT-70208`](https://youtrack.jetbrains.com/issue/KT-70208) 'when' is not exhaustive for expect Boolean - [`KT-69210`](https://youtrack.jetbrains.com/issue/KT-69210) Native: tune LLVM optimization pipeline - [`KT-70753`](https://youtrack.jetbrains.com/issue/KT-70753) K2: Missing non-null assertion on the return value of try-catch block - [`KT-70012`](https://youtrack.jetbrains.com/issue/KT-70012) EXTENSION\_SHADOWED\_BY\_MEMBER shouldn't be reported for actual declarations - [`KT-70837`](https://youtrack.jetbrains.com/issue/KT-70837) K2. "Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource" on incorrect call with extension fun - [`KT-66751`](https://youtrack.jetbrains.com/issue/KT-66751) Implement a general deprecation of types with inaccessible type arguments - [`KT-68748`](https://youtrack.jetbrains.com/issue/KT-68748) K2: Remove `irFactory` from `Fir2IrComponents` - [`KT-61659`](https://youtrack.jetbrains.com/issue/KT-61659) K2: Implement the `EXTENSION_SHADOWED_BY_MEMBER` warning - [`KT-70709`](https://youtrack.jetbrains.com/issue/KT-70709) Range for MUST\_BE\_INITIALIZED shouldn't include property annotations - [`KT-63294`](https://youtrack.jetbrains.com/issue/KT-63294) Do not use duplicated compiler argument names across the codebase - [`KT-70673`](https://youtrack.jetbrains.com/issue/KT-70673) False positive NO\_ELSE\_IN\_WHEN with nullable Boolean as subject - [`KT-70672`](https://youtrack.jetbrains.com/issue/KT-70672) False positive NO\_ELSE\_IN\_WHEN with nullable Enum as subject - [`KT-69207`](https://youtrack.jetbrains.com/issue/KT-69207) Native: use lld when the compiler produces binaries for a Linux target - [`KT-67696`](https://youtrack.jetbrains.com/issue/KT-67696) Native: compiler crashes when loading an LLVM bitcode file of unsupported version - [`KT-69767`](https://youtrack.jetbrains.com/issue/KT-69767) K2: Investigate differences in tests without alias behavior for cyclic expansion - [`KT-70617`](https://youtrack.jetbrains.com/issue/KT-70617) K2: ClassCastException caused by Java enum with overridden `name` property - [`KT-68796`](https://youtrack.jetbrains.com/issue/KT-68796) Non-first invoke operator calls break chained calls of convention operators after safe navigation operator - [`KT-67772`](https://youtrack.jetbrains.com/issue/KT-67772) K2: Metadata misses NoInfer annotation for unsafeCast result - [`KT-70304`](https://youtrack.jetbrains.com/issue/KT-70304) \[FIR2IR] Missing `@NoInfer` - [`KT-65085`](https://youtrack.jetbrains.com/issue/KT-65085) K2: Get rid of special check for unresolved array literals on argument mapping phase - [`KT-65066`](https://youtrack.jetbrains.com/issue/KT-65066) K1 crashes, K2 doesn't report type mismatch on array literal inside nested annotation call - [`KT-49235`](https://youtrack.jetbrains.com/issue/KT-49235) Kotlin interface limited to 1000 super types - [`KT-69991`](https://youtrack.jetbrains.com/issue/KT-69991) K2/JVM: Backend crash with functional types and KFunctions - [`KT-7461`](https://youtrack.jetbrains.com/issue/KT-7461) Forbid using projection modifiers inside top-level Array in annotation's value parameter - [`KT-52315`](https://youtrack.jetbrains.com/issue/KT-52315) Legacy keywords (header, impl) break enum definitions - [`KT-69499`](https://youtrack.jetbrains.com/issue/KT-69499) Native: aggressive inline of runtime procedures causes compiler crash in debug builds - [`KT-69737`](https://youtrack.jetbrains.com/issue/KT-69737) Native: incompatible target-cpu attributes between runtime and Kotlin code - [`KT-69911`](https://youtrack.jetbrains.com/issue/KT-69911) Unexpected line numbers in default setter - [`KT-61529`](https://youtrack.jetbrains.com/issue/KT-61529) K2: Unexpected FirClassLikeSymbol null with -no-jdk - [`KT-69475`](https://youtrack.jetbrains.com/issue/KT-69475) K2: No "Name contains illegal characters" for package name with dots inside - [`KT-69484`](https://youtrack.jetbrains.com/issue/KT-69484) Native: remove default values for `isObjectType` - [`KT-70352`](https://youtrack.jetbrains.com/issue/KT-70352) K2: False-negative CONFLICTING\_UPPER\_BOUNDS on `Nothing` bound - [`KT-59781`](https://youtrack.jetbrains.com/issue/KT-59781) K2: investigate implicit cast generation in fir2ir vs psi2ir - [`KT-70036`](https://youtrack.jetbrains.com/issue/KT-70036) \[FIR2IR] Fix param name in overridden setter - [`KT-68718`](https://youtrack.jetbrains.com/issue/KT-68718) \[JVM] Generic function is instantiated with wrong type argument - [`KT-67983`](https://youtrack.jetbrains.com/issue/KT-67983) K2: False negative "Recursive type alias in expansion" at recursive typealiases - [`KT-70328`](https://youtrack.jetbrains.com/issue/KT-70328) K2: `@UnsafeVariance` stored in the metadata despite the Source retention - [`KT-70313`](https://youtrack.jetbrains.com/issue/KT-70313) K2: Don't add `Any` supertype to `kotlin.Nothing` compiled from sources - [`KT-69982`](https://youtrack.jetbrains.com/issue/KT-69982) K2: New errors when executing `:kotlin-stdlib:jvmJar` - [`KT-70169`](https://youtrack.jetbrains.com/issue/KT-70169) K2: implement a deprecation error for Synchronized, Throws, JvmField on annotation parameters - [`KT-67651`](https://youtrack.jetbrains.com/issue/KT-67651) K2: inconsistency in behavior for SAM constructor with flexible type - [`KT-63857`](https://youtrack.jetbrains.com/issue/KT-63857) K2: Extra `operator` modifier in metadata - [`KT-70182`](https://youtrack.jetbrains.com/issue/KT-70182) K2: Set up `isOperator` flag according to operator naming conventions during building synthetic overrides for Java methods - [`KT-20798`](https://youtrack.jetbrains.com/issue/KT-20798) Implement a deprecation warning for reified modifier on type parameters of type alias - [`KT-68697`](https://youtrack.jetbrains.com/issue/KT-68697) K2 IDE / Kotlin Debugger: NSEE “List is empty.” when method reference is used in some place in code - [`KT-70157`](https://youtrack.jetbrains.com/issue/KT-70157) K2: false positive JAVA\_CLASS\_INHERITS\_KT\_PRIVATE\_CLASS for a Java private class - [`KT-68702`](https://youtrack.jetbrains.com/issue/KT-68702) K2 IDE: AE “SyntheticAccessorLowering should not attempt to modify other files!” on evaluating of supermethods toString() and hashCode() - [`KT-69509`](https://youtrack.jetbrains.com/issue/KT-69509) K2 IDE / Kotlin Debugger: exception in lowering ReplaceKFunctionInvokeWithFunctionInvoke when compiling code fragment - [`KT-66323`](https://youtrack.jetbrains.com/issue/KT-66323) K2: Clarify contracts of `ConeSubstitutorByMap` - [`KT-69652`](https://youtrack.jetbrains.com/issue/KT-69652) K2: False positive "Redundant visibility modifier" with explicitApi() - [`KT-65815`](https://youtrack.jetbrains.com/issue/KT-65815) K2: False-positive NO\_RETURN\_IN\_FUNCTION\_WITH\_BLOCK\_BODY with inline function returning Nothing? - [`KT-60508`](https://youtrack.jetbrains.com/issue/KT-60508) K2/stdlib: compilation of common code fails if built-in types are provided as platform sources - [`KT-70037`](https://youtrack.jetbrains.com/issue/KT-70037) K2: Generate IR body for `Any` constructor despite that fact it's empty - [`KT-69870`](https://youtrack.jetbrains.com/issue/KT-69870) K2: False positive NO\_VALUE\_FOR\_PARAMETER for override without default but base with default and with enabled KMP - [`KT-69599`](https://youtrack.jetbrains.com/issue/KT-69599) K2: Investiage and fix lots of `UNRESOLVED_REFERENCE` during building stdlib native with K2 - [`KT-68375`](https://youtrack.jetbrains.com/issue/KT-68375) K2: FirPrimaryConstructorSuperTypeChecker fails on generated superclasses - [`KT-58309`](https://youtrack.jetbrains.com/issue/KT-58309) Deal with test failures inside FirTypeEnhancementTestGenerated - [`KT-27112`](https://youtrack.jetbrains.com/issue/KT-27112) Implement prohibition of exposing types via type parameters' bounds - [`KT-69831`](https://youtrack.jetbrains.com/issue/KT-69831) Add long FastJarFS tests to the `nightlyFirCompilerTest` configuration - [`KT-69537`](https://youtrack.jetbrains.com/issue/KT-69537) K2: Unintentional behavior caused by InferMoreImplicationsFromBooleanExpressions - [`KT-59814`](https://youtrack.jetbrains.com/issue/KT-59814) K2: Explore why `FirDataFlowAnalyzer` strips away value parameters of non top-level-functions - [`KT-69069`](https://youtrack.jetbrains.com/issue/KT-69069) K2: expect overloads are deprioritized in common code - [`KT-69511`](https://youtrack.jetbrains.com/issue/KT-69511) KJS / K2: False positive IMPLICIT\_BOXING\_IN\_IDENTITY\_EQUALS when comparing dynamic with primitive - [`KT-69500`](https://youtrack.jetbrains.com/issue/KT-69500) Native: introduce an option to inline less "ALWAYS\_INLINE" runtime procedures - [`KT-69717`](https://youtrack.jetbrains.com/issue/KT-69717) K2: Don't call `coneType`/`coneTypeOrNull` extensions on `FirResolvedTypeRef` - [`KT-60440`](https://youtrack.jetbrains.com/issue/KT-60440) K2/Java: investigate constructor own type parameters enhancement - [`KT-69871`](https://youtrack.jetbrains.com/issue/KT-69871) K2 allows modifier keywords on `package` declaration - [`KT-61271`](https://youtrack.jetbrains.com/issue/KT-61271) Frontend: "The label does not denote a loop." error message is used even if the label does denote a loop - [`KT-69768`](https://youtrack.jetbrains.com/issue/KT-69768) K2: Investigate differences in tests without alias behavior with typealias to enum entry - [`KT-63846`](https://youtrack.jetbrains.com/issue/KT-63846) K2: incorrect type argument inferred for smart cast value of a generic type - [`KT-69774`](https://youtrack.jetbrains.com/issue/KT-69774) Don't report overload resolution ambiguity if extension receiver contains error type - [`KT-61316`](https://youtrack.jetbrains.com/issue/KT-61316) K2: Consider throwing exception when replaceType is called on special FirExpressions with immutable types - [`KT-69201`](https://youtrack.jetbrains.com/issue/KT-69201) Discard expect candidate in overload conflict resolver if there is no actual - [`KT-69557`](https://youtrack.jetbrains.com/issue/KT-69557) K2: Investigate failures with enabled assertion in `ConeResolvedAtom` constructor - [`KT-69783`](https://youtrack.jetbrains.com/issue/KT-69783) K2: Make FirTypeProjection sealed - [`KT-68000`](https://youtrack.jetbrains.com/issue/KT-68000) Investigate getting container functions in checkers - [`KT-69649`](https://youtrack.jetbrains.com/issue/KT-69649) K2: Cleanup various utilities about `toSymbol` conversion - [`KT-69185`](https://youtrack.jetbrains.com/issue/KT-69185) K2: Prepare a test runner for diagnostic tests with type aliases non-expanded automatically - [`KT-69390`](https://youtrack.jetbrains.com/issue/KT-69390) UNRESOLVED\_REFERENCE on call with lambda argument turns whole call red - [`KT-68794`](https://youtrack.jetbrains.com/issue/KT-68794) K2 IDE / Kotlin Debugger: ISE “No real overrides for FUN FAKE\_OVERRIDE name:privateFun visibility:private modality:FINAL” on calling private function from superclass in debugger - [`KT-69315`](https://youtrack.jetbrains.com/issue/KT-69315) FirJavaGenericVarianceViolationTypeChecker: StackOverflowError - [`KT-49962`](https://youtrack.jetbrains.com/issue/KT-49962) "Visibility inherited is not allowed in forVisibility" when analyzing broken file - [`KT-24212`](https://youtrack.jetbrains.com/issue/KT-24212) Report "This class shouldn't be used in Kotlin" on calling constructor of Java class with Kotlin analog - [`KT-64195`](https://youtrack.jetbrains.com/issue/KT-64195) K2: Consider make `FirAnonymousInitializer. containingDeclarationSymbol` not null - [`KT-64254`](https://youtrack.jetbrains.com/issue/KT-64254) "Projections are not allowed on type arguments of functions and properties": Type-project type arguments of properties - [`KT-40533`](https://youtrack.jetbrains.com/issue/KT-40533) Error message PROPERTY\_WITH\_NO\_TYPE\_NO\_INITIALIZER for interface property is not fully correct - [`KT-20014`](https://youtrack.jetbrains.com/issue/KT-20014) Improve diagnostics for lateinit property without initializer and type annotation - [`KT-51366`](https://youtrack.jetbrains.com/issue/KT-51366) False positive error "Value class cannot extend classes" when extending generic interface with wrong number of type arguments - [`KT-68277`](https://youtrack.jetbrains.com/issue/KT-68277) K2: false positive UNREACHABLE\_CODE for non-local `return`/`break` - [`KT-69544`](https://youtrack.jetbrains.com/issue/KT-69544) K2: Mapped Java `@Target` annotation's vararg argument has swapped type and elementType - [`KT-68998`](https://youtrack.jetbrains.com/issue/KT-68998) K2: Refactor postponed atoms - [`KT-69288`](https://youtrack.jetbrains.com/issue/KT-69288) Native: Apple LLVM 16 fork can't read bitcode with memory attribute produced by upstream LLVM 16 - [`KT-67808`](https://youtrack.jetbrains.com/issue/KT-67808) K2: Inconsistent properties initialization analysis in init blocks in presence of smartcast on this - [`KT-69035`](https://youtrack.jetbrains.com/issue/KT-69035) K2: Investigate potential removal of FirMangler - [`KT-69473`](https://youtrack.jetbrains.com/issue/KT-69473) Missing suspend-conversion for lambda in the last statement of when with expected type - [`KT-64640`](https://youtrack.jetbrains.com/issue/KT-64640) Prevent mutating SequenceCollection methods from JDK 21 be available on read-only collections - [`KT-65441`](https://youtrack.jetbrains.com/issue/KT-65441) K1: Remove JDK 21 getFirst()/getLast() in (Mutable)List interfaces - [`KT-54792`](https://youtrack.jetbrains.com/issue/KT-54792) Store program order of properties inside `@kotlin`.Metadata - [`KT-59832`](https://youtrack.jetbrains.com/issue/KT-59832) K2: Fix the TODO about merging values for labels in UnusedChecker ##### Compose compiler ##### New features - [`b/328817808`](https://issuetracker.google.com/issues/328817808) Added the PausableComposition feature flags - [`83c48a0`](https://github.com/JetBrains/kotlin/commit/83c48a0dc54c8b48bd46805c84c5df215558134d) Decoy support for JS target is removed from Compose compiler ##### Fixes - [`CMP-6926`](https://youtrack.jetbrains.com/issue/CMP-6926) iOS compilation failure: Unresolved reference 'copy' - [`CMP-6842`](https://youtrack.jetbrains.com/issue/CMP-6842) FAKE\_OVERRIDE declarations are not preserved in metadata and should not be marked with annotations - [`CMP-6788`](https://youtrack.jetbrains.com/issue/CMP-6788) non-private field compilation warnings (stableprop & ComposableSingletons) - [`CMP-6685`](https://youtrack.jetbrains.com/issue/CMP-6685) Native/WASM compilation failure on Composable function with value-type arg + return - [`b/376058538`](https://issuetracker.google.com/issues/376058538) Fix stack overflow when inferring stability of indirect generic loop - [`b/339322843`](https://issuetracker.google.com/issues/339322843) Transform `@Composable` property delegate references - [`b/366040842`](https://issuetracker.google.com/issues/366040842), [`b/365066530`](https://issuetracker.google.com/issues/365066530) Replace deep copy in Compose plugin with in-place type mutation - [`b/329477544`](https://issuetracker.google.com/issues/329477544) Force open / overridden Composable functions to be non-restartable. - [`b/361652128`](https://issuetracker.google.com/issues/361652128) Disable live literal transform if the corresponding flag is disabled - [`b/325004814`](https://issuetracker.google.com/issues/325004814) \[Compose] Fix infinite recursion in target analysis - [`b/357878245`](https://issuetracker.google.com/issues/357878245) Disallow open `@Composable` functions with default params to fix binary compatibility issues. - [`b/338597078`](https://issuetracker.google.com/issues/338597078) \[Compose] Fix target warning message - [`b/351858979`](https://issuetracker.google.com/issues/351858979) Fix stability inferencing of interfaces on incremental compilation - [`b/346821372`](https://issuetracker.google.com/issues/346821372) \[Compose] Fix code generation for group optimization - [`b/339311821`](https://issuetracker.google.com/issues/339311821) Give warning when stability configuration file is not found - [`b/346821372`](https://issuetracker.google.com/issues/346821372) Fixes group generation for if statements when nonSkippingGroupOptimization is enabled. ##### IDE. Gradle Integration - [`KT-48554`](https://youtrack.jetbrains.com/issue/KT-48554) \[Multiplatform Import] Ensure consistency between `GradleImportProperties` and `PropertiesProvider` ##### IR. Actualizer - [`KT-71631`](https://youtrack.jetbrains.com/issue/KT-71631) Kotlin-to-Java direct actualization: java annotation element isn't actualized - [`KT-71597`](https://youtrack.jetbrains.com/issue/KT-71597) Kotlin-to-Java direct actualization: it is possible to actualize a function with default parameters - [`KT-71592`](https://youtrack.jetbrains.com/issue/KT-71592) Kotlin-to-Java direct actualization: constructor of nested class can't be actualized - [`KT-71577`](https://youtrack.jetbrains.com/issue/KT-71577) Kotlin-to-Java direct actualization: method can be actualized by java static method - [`KT-69632`](https://youtrack.jetbrains.com/issue/KT-69632) K2: Expect actual mismatch on actualization with alias to expect class - [`KT-71817`](https://youtrack.jetbrains.com/issue/KT-71817) Actualization of static members is broken for non-JVM platforms ##### IR. Inlining ##### New Features - [`KT-69527`](https://youtrack.jetbrains.com/issue/KT-69527) Set the right visibility for synthetic accessors in SyntheticAccessorLowering ##### Fixes - [`KT-71232`](https://youtrack.jetbrains.com/issue/KT-71232) Implement an IR validation check that ensures that all IrFields are private on non-JVM backends - [`KT-69307`](https://youtrack.jetbrains.com/issue/KT-69307) Source offsets seem incorrect after IR inlining - [`KT-72884`](https://youtrack.jetbrains.com/issue/KT-72884) Internal error in body lowering: IllegalStateException: Can't inline given reference, it should've been lowered - [`KT-71659`](https://youtrack.jetbrains.com/issue/KT-71659) IR Inliner fails to inline function expressions due to implicit cast from the 1st phase of inlining - [`KT-69681`](https://youtrack.jetbrains.com/issue/KT-69681) IR: Report warnings on exposure of private types in non-private inline functions - [`KT-72521`](https://youtrack.jetbrains.com/issue/KT-72521) Kotlin/Native: java.lang.AssertionError: kfun:androidx.compose.runtime#access$\<get-androidx\_compose\_runtime\_ProvidedValue$stable>$p$tComposerKt(){}kotlin.Int - [`KT-72623`](https://youtrack.jetbrains.com/issue/KT-72623) Don't generate synthetic accessors in files other than the one being lowered - [`KT-70420`](https://youtrack.jetbrains.com/issue/KT-70420) Enable double-inlining in Native & JS backends by default - [`KT-67292`](https://youtrack.jetbrains.com/issue/KT-67292) Handling assertions before the IR inliner - [`KT-70423`](https://youtrack.jetbrains.com/issue/KT-70423) KLIB: SyntheticAccessorLowering - generate static factory functions instead of synthetic constructors - [`KT-69565`](https://youtrack.jetbrains.com/issue/KT-69565) Don't generate synthetic accessors for private symbols inside local classes - [`KT-69787`](https://youtrack.jetbrains.com/issue/KT-69787) Handle clashes of synthetic accessors generated for top-level callables - [`KT-71137`](https://youtrack.jetbrains.com/issue/KT-71137) Generate synthetic accessors for backing fields - [`KT-67172`](https://youtrack.jetbrains.com/issue/KT-67172) Native & JS: Introduce OuterThisInInlineFunctionsSpecialAccessorLowering - [`KT-64865`](https://youtrack.jetbrains.com/issue/KT-64865) Explicitly generate accessors for private declarations in inline functions - [`KT-71657`](https://youtrack.jetbrains.com/issue/KT-71657) K/JS: Double-inlining causes failures in IC with top-level synthetic accessors - [`KT-71078`](https://youtrack.jetbrains.com/issue/KT-71078) Inline all functions in local classes at the 1st stage of inlining - [`KT-69802`](https://youtrack.jetbrains.com/issue/KT-69802) Don't extract local classes from inline functions in double inlining mode - [`KT-66508`](https://youtrack.jetbrains.com/issue/KT-66508) IR inliner: Add implicit cast for initializer of temporary variables - [`KT-66507`](https://youtrack.jetbrains.com/issue/KT-66507) IR inliner: Enable implicit casts in all KLib backends - [`KT-69466`](https://youtrack.jetbrains.com/issue/KT-69466) IrInlinedFunctionBlock: Refactor it to make it possible to serialize in KLIBs - [`KT-69317`](https://youtrack.jetbrains.com/issue/KT-69317) IR Inlining. Try to place inlined arguments outside `IrInlinedFunctionBlock` - [`KT-67149`](https://youtrack.jetbrains.com/issue/KT-67149) Common Native/JS lowering prefix at the 2nd phase of compilation - [`KT-69172`](https://youtrack.jetbrains.com/issue/KT-69172) Implement double-inlining for Native - [`KT-67304`](https://youtrack.jetbrains.com/issue/KT-67304) Keep in common prefix: Shared variables + local classes in inline lambdas - [`KT-67170`](https://youtrack.jetbrains.com/issue/KT-67170) ArrayConstructorReferenceLowering is missing in Native - [`KT-70583`](https://youtrack.jetbrains.com/issue/KT-70583) Internal error in body lowering: java.lang.IllegalStateException: An attempt to generate an accessor after all accessors have been already added to their containers - [`KT-69700`](https://youtrack.jetbrains.com/issue/KT-69700) Inline `stub_for_inlining` use sites survive after the inliner - [`KT-69462`](https://youtrack.jetbrains.com/issue/KT-69462) Support dumping IR after inlining in compiler tests - [`KT-70693`](https://youtrack.jetbrains.com/issue/KT-70693) IR: replace IrReturnableBlock.inlineFucntion with IrInlinedFunctionBlock.inlineFucntion - [`KT-70763`](https://youtrack.jetbrains.com/issue/KT-70763) IR inline: consider storing stub\_for\_inline as an inlined function for callable reference - [`KT-69168`](https://youtrack.jetbrains.com/issue/KT-69168) Wrap assertion calls before IR inliner - [`KT-69167`](https://youtrack.jetbrains.com/issue/KT-69167) Create intrinsics in stdlib for handling assertions in KLIB-based backends - [`KT-69169`](https://youtrack.jetbrains.com/issue/KT-69169) Expand assertion intrinsics in backend based on CLI parameters - [`KT-69174`](https://youtrack.jetbrains.com/issue/KT-69174) Implement the basic Synthetic Accessors Lowering for KLIB-based backends ##### IR. Interpreter - [`KT-70388`](https://youtrack.jetbrains.com/issue/KT-70388) K2 IDE / Kotlin Debugger: InterpreterError “Unsupported number of arguments for invocation as builtin function: INT\_MAX\_POWER\_OF\_TWO” during evaluation ##### IR. Tree ##### Fixes - [`KT-69644`](https://youtrack.jetbrains.com/issue/KT-69644) Report warning on cross-file IrGetField operations generated by compiler plugins - [`KT-68789`](https://youtrack.jetbrains.com/issue/KT-68789) Prepare tests for testing visibility (non-)violation in inlined IR - [`KT-71826`](https://youtrack.jetbrains.com/issue/KT-71826) stdlib fails to compile with `-Xserialize-ir=all` - [`KT-70333`](https://youtrack.jetbrains.com/issue/KT-70333) IR: remove ability to apply compiler plugins during KAPT stub generation phase - [`KT-67752`](https://youtrack.jetbrains.com/issue/KT-67752) Make copyRemappedTypeArgumentsFrom and transformValueArguments methods in DeepCopyIrTreeWithSymbols protected instead of private - [`KT-68151`](https://youtrack.jetbrains.com/issue/KT-68151) Setup testing visibility of referenced declarations in IR - [`KT-68988`](https://youtrack.jetbrains.com/issue/KT-68988) \[Tests] Streamline the order of irFiles in IR- and Kotlin-like dumps - [`KT-65773`](https://youtrack.jetbrains.com/issue/KT-65773) Auto generate IR implementation classes - [`KT-70330`](https://youtrack.jetbrains.com/issue/KT-70330) Automatically keep track of IrValueParameter.index - [`KT-68495`](https://youtrack.jetbrains.com/issue/KT-68495) Compile-time failure on bounded generic value used in a contains-check with range - [`KT-68974`](https://youtrack.jetbrains.com/issue/KT-68974) Validate scopes of IrValueParameters in IrValidator ##### JavaScript ##### New Features - [`KT-70254`](https://youtrack.jetbrains.com/issue/KT-70254) K/JS: Generate arrows in ES6 mode instead of anonymous functions - [`KT-70283`](https://youtrack.jetbrains.com/issue/KT-70283) KJS / ES6: Don't generate bind(this) calls for anonymous functions that capture `this` ##### Fixes - [`KT-43567`](https://youtrack.jetbrains.com/issue/KT-43567) KJS: toString() method and string interpolation of variable produce different code - [`KT-70533`](https://youtrack.jetbrains.com/issue/KT-70533) KJS: changed string concatenation behavior in 2.0 - [`KT-14013`](https://youtrack.jetbrains.com/issue/KT-14013) JS toString produces different result for nullable/non-nullable ref to the same array - [`KT-72732`](https://youtrack.jetbrains.com/issue/KT-72732) KJS / ES6: "SyntaxError: 'super' keyword unexpected here" with enabled `-Xir-generate-inline-anonymous-functions` and disabled arrow functions - [`KT-69408`](https://youtrack.jetbrains.com/issue/KT-69408) \[JS] Enable insertAdditionalImplicitCasts=true (as in other KLIB-based backends) - [`KT-71821`](https://youtrack.jetbrains.com/issue/KT-71821) K/JS tests are failing with coroutines flow and turbine on timeout - [`KT-31799`](https://youtrack.jetbrains.com/issue/KT-31799) Allow non-identifier characters in Kotlin/JS (backquoted properties, `@JsName`) - [`KT-55869`](https://youtrack.jetbrains.com/issue/KT-55869) Coroutine is not intercepted, when the coroutine is started calling `startCoroutineUninterceptedOrReturn` using callable reference - [`KT-70117`](https://youtrack.jetbrains.com/issue/KT-70117) Generate debug info for code from `js` call - [`KT-69642`](https://youtrack.jetbrains.com/issue/KT-69642) ES generator-based coroutines rely on eval - [`KT-67452`](https://youtrack.jetbrains.com/issue/KT-67452) K2: Consider hiding dynamic type creation under FlexibleTypeFactory for JS only - [`KT-70226`](https://youtrack.jetbrains.com/issue/KT-70226) Delete JS tests that were only run with the legacy JS backend - [`KT-71338`](https://youtrack.jetbrains.com/issue/KT-71338) K/JS: Add a flag for switching generating arrow functions on & off - [`KT-69173`](https://youtrack.jetbrains.com/issue/KT-69173) Implement double-inlining for JS - [`KT-67327`](https://youtrack.jetbrains.com/issue/KT-67327) JS: Remove error tolerance - [`KT-69892`](https://youtrack.jetbrains.com/issue/KT-69892) Array.isArray() returns false for an instance returned by KtList.asReadonlyArrayView() - [`KT-70231`](https://youtrack.jetbrains.com/issue/KT-70231) Delete the org.jetbrains.kotlin.cli.js.dce.K2JSDce class - [`KT-69928`](https://youtrack.jetbrains.com/issue/KT-69928) KJS: keys() and values() of KtMap's JS view don't behave as expected - [`KT-70707`](https://youtrack.jetbrains.com/issue/KT-70707) KJS: asJsReadonlyMapView does not implement ReadonlyMap correctly - [`KT-71220`](https://youtrack.jetbrains.com/issue/KT-71220) Fix invalid IrFunctionReference creation in InnerClassConstructorCallsLowering - [`KT-70393`](https://youtrack.jetbrains.com/issue/KT-70393) Investigate failing JS test after switch stdlib compilation to K2 - [`KT-64429`](https://youtrack.jetbrains.com/issue/KT-64429) K2: Implement KlibJsIrTextTestCaseGenerated for K2 - [`KT-69587`](https://youtrack.jetbrains.com/issue/KT-69587) \[Tests] Fix multi-module deserialization in JS irText tests - [`KT-70219`](https://youtrack.jetbrains.com/issue/KT-70219) Delete the org.jetbrains.kotlin.cli.js.K2JSCompiler class - [`KT-70221`](https://youtrack.jetbrains.com/issue/KT-70221) Rename org.jetbrains.kotlin.cli.js.K2JsIrCompiler to K2JSCompiler - [`KT-70229`](https://youtrack.jetbrains.com/issue/KT-70229) Remove test classes related to the legacy JS backend - [`KT-70359`](https://youtrack.jetbrains.com/issue/KT-70359) Remove legacy backend-related test directives from Kotlin/JS tests - [`KT-70362`](https://youtrack.jetbrains.com/issue/KT-70362) Clean up Gradle tasks for running JS tests against the legacy JS backend - [`KT-66181`](https://youtrack.jetbrains.com/issue/KT-66181) Reorganize JsCodeOutliningLowering and keep it before the IR inliner - [`KT-30016`](https://youtrack.jetbrains.com/issue/KT-30016) JS BE does not generate special bridge methods - [`KT-68975`](https://youtrack.jetbrains.com/issue/KT-68975) KJS: Investigate calling `js(...)` from inline functions ##### KMM Plugin - [`KT-71011`](https://youtrack.jetbrains.com/issue/KT-71011) AS KMP plugin: ios application can't start for 2024.2.1 ##### Klibs ##### New Features - [`KT-64169`](https://youtrack.jetbrains.com/issue/KT-64169) \[KLIB Resolve] Don't skip libraries that happen to have the same `unique_name` - [`KT-68322`](https://youtrack.jetbrains.com/issue/KT-68322) Compiler (JS, Wasm): warn about incompatible Kotlin stdlib/compiler pair ##### Fixes - [`KT-61098`](https://youtrack.jetbrains.com/issue/KT-61098) \[KLIB Resolve] Don't allow working with KLIB "repositories" - [`KT-72965`](https://youtrack.jetbrains.com/issue/KT-72965) Ignore subclassOptInRequired constructor warning - [`KT-68792`](https://youtrack.jetbrains.com/issue/KT-68792) Bump KLIB ABI version in 2.1 - [`KT-67474`](https://youtrack.jetbrains.com/issue/KT-67474) K2: Missing `@ExtensionFunctionType` in metadata in KLIBs - [`KT-71633`](https://youtrack.jetbrains.com/issue/KT-71633) \[2.1.0] Suspicious "Argument type mismatch" error - [`KT-70146`](https://youtrack.jetbrains.com/issue/KT-70146) \[KLIB Resolve] Don't fail on nonexistent transitive dependency - [`KT-71455`](https://youtrack.jetbrains.com/issue/KT-71455) \[KLIB Resolve] Forbid passing KLIB unique names via CLI - [`KT-67448`](https://youtrack.jetbrains.com/issue/KT-67448) \[KLIB Resolve] Deprecate passing KLIB unique names via CLI - [`KT-67450`](https://youtrack.jetbrains.com/issue/KT-67450) \[KLIB Resolve] Kotlin/Native: Only one implicit repository should remain for the compiler ("dist") - [`KT-70285`](https://youtrack.jetbrains.com/issue/KT-70285) Warning about incompatible stdlib (JS/Wasm) is not reported if stdlib is unpacked - [`KT-66218`](https://youtrack.jetbrains.com/issue/KT-66218) Clean-up the code for serialization & deserialization of DFGs to & from KLIBs - [`KT-71414`](https://youtrack.jetbrains.com/issue/KT-71414) KotlinLibraryResolver.resolveWithDependencies was evolved in binary incompatible way - [`KT-68195`](https://youtrack.jetbrains.com/issue/KT-68195) move KlibMetadataProtoBuf to frondend-independent module ##### Language Design - [`KT-54617`](https://youtrack.jetbrains.com/issue/KT-54617) Stabilize `@SubclassOptInRequired`: ability to require opt-in for interface implementation - [`KT-54458`](https://youtrack.jetbrains.com/issue/KT-54458) Preview of non-local break and continue - [`KT-69924`](https://youtrack.jetbrains.com/issue/KT-69924) Mention 'if' guard when '&&' is used incorrectly - [`KT-71222`](https://youtrack.jetbrains.com/issue/KT-71222) Remove `@ExperimentalSubclassOptIn` from SubclassOptInRequired - [`KT-67675`](https://youtrack.jetbrains.com/issue/KT-67675) Allow usage of Array\<Nothing?> - [`KT-70754`](https://youtrack.jetbrains.com/issue/KT-70754) Changes in typeOf behaviour for Kotlin/Native - [`KT-58659`](https://youtrack.jetbrains.com/issue/KT-58659) Prohibit implementing a var property with an inherited val property ##### Libraries ##### Performance Improvements - [`KT-66715`](https://youtrack.jetbrains.com/issue/KT-66715) Performance: faster alternative to String.lines() ##### Fixes - [`KT-71628`](https://youtrack.jetbrains.com/issue/KT-71628) Review deprecations in stdlib for 2.1 - [`KT-69545`](https://youtrack.jetbrains.com/issue/KT-69545) Kotlin/Native: Deprecate API marked with FreezingIsDeprecated to error - [`KT-56076`](https://youtrack.jetbrains.com/issue/KT-56076) K2: build Kotlin standard library - [`KT-71660`](https://youtrack.jetbrains.com/issue/KT-71660) Stabilize experimental API for 2.1 - [`KT-54299`](https://youtrack.jetbrains.com/issue/KT-54299) Extract org.w3c declarations to separate library from K/Wasm Stdlib - [`KT-68027`](https://youtrack.jetbrains.com/issue/KT-68027) Document caveats and deincentivise usage of measureTimeMillis - [`KT-71581`](https://youtrack.jetbrains.com/issue/KT-71581) Update outdated documentation to common lazy and provide samples - [`KT-71796`](https://youtrack.jetbrains.com/issue/KT-71796) Improve documentation for Path.walk and Path.visitFileTree functions - [`KT-68019`](https://youtrack.jetbrains.com/issue/KT-68019) Fill in missing package descriptions for standard library documentation - [`KT-52181`](https://youtrack.jetbrains.com/issue/KT-52181) Native: Inconsistent behaviour of LinkedHashMap#entries on JVM and Native - [`KT-71570`](https://youtrack.jetbrains.com/issue/KT-71570) Document suspend lambda builder - [`KT-65526`](https://youtrack.jetbrains.com/issue/KT-65526) Rewrite builtins as expect-actual - [`KT-68502`](https://youtrack.jetbrains.com/issue/KT-68502) K2: Fix or suppress stdlib K2 warnings - [`KT-68731`](https://youtrack.jetbrains.com/issue/KT-68731) K2: Handle some formally incompatible expect/actual classes in JVM stdlib - [`KT-70378`](https://youtrack.jetbrains.com/issue/KT-70378) Implement custom serialization for Uuid - [`KT-70005`](https://youtrack.jetbrains.com/issue/KT-70005) K/Wasm and K/Native: IntArray.sort - array element access out of bounds - [`KT-66764`](https://youtrack.jetbrains.com/issue/KT-66764) kotlinx-benchmark: rework on kotlin-compiler-embeddable - [`KT-69817`](https://youtrack.jetbrains.com/issue/KT-69817) Set up klib binary API validation for stdlib - [`KT-68396`](https://youtrack.jetbrains.com/issue/KT-68396) Handle some formally incompatible top-level expects/actuals callables - [`KT-69524`](https://youtrack.jetbrains.com/issue/KT-69524) kotlin.uuid.Uuid: checkHyphenAt - error message always specified index 8 - [`KT-69327`](https://youtrack.jetbrains.com/issue/KT-69327) \[native] FloatingPointParser.initialParse works incorrectly for some inputs - [`KT-46785`](https://youtrack.jetbrains.com/issue/KT-46785) Get rid of !! after readLine() in the standard library ##### Native - [`KT-71435`](https://youtrack.jetbrains.com/issue/KT-71435) Native: cannot access class 'objcnames.classes.Protocol' - [`KT-49279`](https://youtrack.jetbrains.com/issue/KT-49279) Kotlin/Native: update LLVM from 11.1.0 to 16.0.0 - [`KT-61299`](https://youtrack.jetbrains.com/issue/KT-61299) Native: patch LLVM to prevent it from using signal handlers incompatibly with JVM - [`KT-69637`](https://youtrack.jetbrains.com/issue/KT-69637) Native: our LLVM shouldn't advise submitting bugs to the upstream - [`KT-64636`](https://youtrack.jetbrains.com/issue/KT-64636) kotlin.incremental.native=true causes IrLinkageError - [`KT-69142`](https://youtrack.jetbrains.com/issue/KT-69142) ObsoleteWorkersApi and FreezingIsDeprecated is not displayed on targets in webdocs ##### Native. Build Infrastructure - [`KT-71820`](https://youtrack.jetbrains.com/issue/KT-71820) Update the coroutines version used in kotlin-native build infrastructure - [`KT-69479`](https://youtrack.jetbrains.com/issue/KT-69479) Native: remove custom python version building from the LLVM builder container image - [`KT-63214`](https://youtrack.jetbrains.com/issue/KT-63214) \[K/N] llvm build script fails with MacOSX14.0.sdk sysroot ##### Native. ObjC Export - [`KT-62997`](https://youtrack.jetbrains.com/issue/KT-62997) IllegalStateException for hashCode(): KClass for Objective-C classes is not supported yet - [`KT-59497`](https://youtrack.jetbrains.com/issue/KT-59497) KClass.simpleName returns null in ObjC-inherited class ##### Native. Platform Libraries - [`KT-70032`](https://youtrack.jetbrains.com/issue/KT-70032) Rebuild platform libraries in 2.1.0 with Xcode 16 - [`KT-69448`](https://youtrack.jetbrains.com/issue/KT-69448) LLVM 16 clang with Xcode 16 headers: 'sys/cdefs.h' file not found ##### Native. Runtime - [`KT-70680`](https://youtrack.jetbrains.com/issue/KT-70680) Kotlin/Native: Use WritableTypeInfo when creating Swift wrapper from the runtime - [`KT-70568`](https://youtrack.jetbrains.com/issue/KT-70568) Native: revert workaround for debug with LLVM 16 - [`KT-67730`](https://youtrack.jetbrains.com/issue/KT-67730) Native: fix runtime compilation warnings after update to LLVM 16 ##### Native. Runtime. Memory - [`KT-72624`](https://youtrack.jetbrains.com/issue/KT-72624) Native: testRelease\_on\_unattached\_thread sometimes fails with Releasing StableRef with rc 0 - [`KT-71401`](https://youtrack.jetbrains.com/issue/KT-71401) K/N: CMS barrier can be executed on an unregisterred thread - [`KT-70364`](https://youtrack.jetbrains.com/issue/KT-70364) Kotlin/Native: data race during GC initialization - [`KT-68544`](https://youtrack.jetbrains.com/issue/KT-68544) \[Native] Implement heap dump tool - [`KT-70365`](https://youtrack.jetbrains.com/issue/KT-70365) Kotlin/Native: make thread id be pointer size ##### Native. Swift Export ##### New Features - [`KT-71539`](https://youtrack.jetbrains.com/issue/KT-71539) Swift Export: export class member overrides - [`KT-70442`](https://youtrack.jetbrains.com/issue/KT-70442) Swift Export: export class inheritance - [`KT-68864`](https://youtrack.jetbrains.com/issue/KT-68864) Refactor internal details of swift-export-standalone ##### Fixes - [`KT-70678`](https://youtrack.jetbrains.com/issue/KT-70678) Swift Export: generate Kotlin<->Swift type mapping - [`KT-70920`](https://youtrack.jetbrains.com/issue/KT-70920) Swift Export Nullability: primitive type - [`KT-71087`](https://youtrack.jetbrains.com/issue/KT-71087) Swift Export: Nullability: Never - [`KT-71086`](https://youtrack.jetbrains.com/issue/KT-71086) Swift Export: Nullability: Strings - [`KT-70919`](https://youtrack.jetbrains.com/issue/KT-70919) Swift Export Nullability: reference type - [`KT-71026`](https://youtrack.jetbrains.com/issue/KT-71026) Swift Export: function overloading with ref types does not work - [`KT-70960`](https://youtrack.jetbrains.com/issue/KT-70960) Swift Export nullability: add nullability to sir and printer - [`KT-70063`](https://youtrack.jetbrains.com/issue/KT-70063) Swift export generates invalid Swift code for class and function with the same name - [`KT-70069`](https://youtrack.jetbrains.com/issue/KT-70069) Swift export: filter out extension properties - [`KT-70068`](https://youtrack.jetbrains.com/issue/KT-70068) Swift export: nullable types are not marked as unsupported - [`KT-69287`](https://youtrack.jetbrains.com/issue/KT-69287) Swift Export: support leaking dependencies - [`KT-69633`](https://youtrack.jetbrains.com/issue/KT-69633) Provide interface for multiple module translation - [`KT-69286`](https://youtrack.jetbrains.com/issue/KT-69286) \[Swift Export]\[TestInfra] Support translating multiple roots - [`KT-69376`](https://youtrack.jetbrains.com/issue/KT-69376) Property with Any type does not force addition of import ##### Reflection - [`KT-71378`](https://youtrack.jetbrains.com/issue/KT-71378) KotlinReflectionInternalError: Inconsistent number of parameters in the descriptor and Java reflection object ##### Specification - [`KT-53427`](https://youtrack.jetbrains.com/issue/KT-53427) Specify `@SubclassOptInRequired` ##### Tools. CLI ##### New Features - [`KT-8087`](https://youtrack.jetbrains.com/issue/KT-8087) Make it possible to suppress warnings globally in compiler (via command-line option) - [`KT-71537`](https://youtrack.jetbrains.com/issue/KT-71537) Add JVM target bytecode version 23 ##### Fixes - [`KT-70991`](https://youtrack.jetbrains.com/issue/KT-70991) K2: Compilation fails if project version has a comma - [`KT-70179`](https://youtrack.jetbrains.com/issue/KT-70179) K2: Building a file with kotlin-test-junit without junit does not include annotations - [`KT-72311`](https://youtrack.jetbrains.com/issue/KT-72311) KotlinCliJavaFileManagerImpl caches empty result and broke repeated analyses - [`KT-61745`](https://youtrack.jetbrains.com/issue/KT-61745) K2: support light tree in multi-module chunk mode - [`KT-70885`](https://youtrack.jetbrains.com/issue/KT-70885) Errors are not reported for wrong arguments in -Xsuppress-warning flag for non-jvm backends - [`KT-69541`](https://youtrack.jetbrains.com/issue/KT-69541) K2: "IllegalArgumentException: Unexpected versionNeededToExtract" on using JAR packaged as ZIP64 - [`KT-69434`](https://youtrack.jetbrains.com/issue/KT-69434) K2: Kotlin compiler JarFS can't handle large dependencies (>2GB) - [`KT-70959`](https://youtrack.jetbrains.com/issue/KT-70959) K2: Support legacy metadata jar format in K2 compiler - [`KT-70337`](https://youtrack.jetbrains.com/issue/KT-70337) Obsolete code is not removed after refactoring - `JvmEnvironmentConfigurator.registerModuleDependencies` - [`KT-70322`](https://youtrack.jetbrains.com/issue/KT-70322) Merge CLITool and CLICompiler classes ##### Tools. CLI. Native - [`KT-68673`](https://youtrack.jetbrains.com/issue/KT-68673) Kotlin/Native "You have not specified any compilation arguments. No output has been produced" when no source nor `-Xinclude` is passed ##### Tools. Compiler Plugins ##### Fixes - [`KT-72804`](https://youtrack.jetbrains.com/issue/KT-72804) Regression in Kotlin 2.1.0: compilation fails when building iOS - [`KT-72824`](https://youtrack.jetbrains.com/issue/KT-72824) Kotlin power-assert plugin StringIndexOutOfBoundsException - [`KT-71658`](https://youtrack.jetbrains.com/issue/KT-71658) Transform top-level atomic properties to Java boxed atomics - [`KT-65645`](https://youtrack.jetbrains.com/issue/KT-65645) Atomicfu-plugin: compilation hangs on a long string concatenation - [`KT-69038`](https://youtrack.jetbrains.com/issue/KT-69038) Power-Assert does not display const vals - [`KT-71525`](https://youtrack.jetbrains.com/issue/KT-71525) Setting JvmAbiConfigurationKeys.REMOVE\_PRIVATE\_CLASSES = true triggers java.util.ConcurrentModificationException - [`KT-41888`](https://youtrack.jetbrains.com/issue/KT-41888) IrExpression startOffset and endOffset are inconsistent with raw file text - [`KT-69856`](https://youtrack.jetbrains.com/issue/KT-69856) Compose Plugin: IrType.erasedUpperBound throws NullPointerException when evaluating IrScript nodes due to missing targetClass - [`KT-69410`](https://youtrack.jetbrains.com/issue/KT-69410) PowerAssert: Cannot find overload of requireNotNull without existing message - [`KT-66293`](https://youtrack.jetbrains.com/issue/KT-66293) Atomicfu-plugin: wrong return types for lowered extension functions - [`KT-69646`](https://youtrack.jetbrains.com/issue/KT-69646) PowerAssert: result of array access operator is unaligned - [`KT-70112`](https://youtrack.jetbrains.com/issue/KT-70112) Power Assert: multiline assertion support - [`KT-70504`](https://youtrack.jetbrains.com/issue/KT-70504) \[atomicfu-plugin] Incremental compilation fails for atomic extensions on JVM - [`KT-70351`](https://youtrack.jetbrains.com/issue/KT-70351) K2 CodeGen API exception triggered by a compose compiler plugin lowering transformer for data class example - [`KT-70113`](https://youtrack.jetbrains.com/issue/KT-70113) Power Assert: tab support - [`KT-69806`](https://youtrack.jetbrains.com/issue/KT-69806) K2: SOE on nested plugin-like annotation in class annotated with itself - [`KT-69538`](https://youtrack.jetbrains.com/issue/KT-69538) jvm-abi-gen: Remove copy$default if data class constructor is private and ConsistentCopyVisibility is used ##### Tools. Compiler plugins. Serialization - [`KT-70110`](https://youtrack.jetbrains.com/issue/KT-70110) Prohibit `@Serializable` on companion object of another `@Serializable` class - [`KT-69388`](https://youtrack.jetbrains.com/issue/KT-69388) Serialization: "You should use ConeClassLookupTagWithFixedSymbol" caused by `@Serializable` on local generic class ##### Tools. Daemon - [`KT-69929`](https://youtrack.jetbrains.com/issue/KT-69929) compileKotlin task reports that daemon has terminated unexpectedly - [`KT-72530`](https://youtrack.jetbrains.com/issue/KT-72530) The daemon has terminated unexpectedly on startup attempt [#&#8203;1](https://github.com/JetBrains/kotlin/issues/1) with error code: Unknown ##### Tools. Fleet. ObjC Export ##### Fixes - [`KT-71162`](https://youtrack.jetbrains.com/issue/KT-71162) ObjCExport: nullable functional type with reference arguments - [`KT-71022`](https://youtrack.jetbrains.com/issue/KT-71022) ObjCExport: enum c keywords translation - [`KT-71082`](https://youtrack.jetbrains.com/issue/KT-71082) ObjCExport: KotlinUnit translated as Function1 - [`KT-70781`](https://youtrack.jetbrains.com/issue/KT-70781) ObjCExport: classifiers and callables type parameters translation - [`KT-70943`](https://youtrack.jetbrains.com/issue/KT-70943) ObjCExport: extension order - [`KT-70840`](https://youtrack.jetbrains.com/issue/KT-70840) ObjCExport: duplicated interfaces - [`KT-70642`](https://youtrack.jetbrains.com/issue/KT-70642) ObjCExport: translate collection type arguments as id - [`KT-70546`](https://youtrack.jetbrains.com/issue/KT-70546) ObjCExport: method generic parameter is lost and translated as id - [`KT-70329`](https://youtrack.jetbrains.com/issue/KT-70329) ObjCExport: translation and forward of super generic types - [`KT-70263`](https://youtrack.jetbrains.com/issue/KT-70263) ObjCExport: generic extension support - [`KT-69685`](https://youtrack.jetbrains.com/issue/KT-69685) ObjCExport: extension translated as not extension - [`KT-70318`](https://youtrack.jetbrains.com/issue/KT-70318) ObjCExport: translate companion type - [`KT-69252`](https://youtrack.jetbrains.com/issue/KT-69252) ObjCExport: Get rid of context receivers from ./native/objcexport-header-generator ##### Tools. Gradle ##### New Features - [`KT-69940`](https://youtrack.jetbrains.com/issue/KT-69940) Expose supplementary compiler warnings via KGP - [`KT-71603`](https://youtrack.jetbrains.com/issue/KT-71603) Introduce KotlinJvmExtension and KotlinAndroidExtension - [`KT-70383`](https://youtrack.jetbrains.com/issue/KT-70383) KotlinJvmFactory registerKaptGenerateStubsTask() function should also request compilation task provider - [`KT-65125`](https://youtrack.jetbrains.com/issue/KT-65125) Provide basic support for Swift Export in Kotlin Gradle Plugin - [`KT-71602`](https://youtrack.jetbrains.com/issue/KT-71602) Introduce KotlinTopLevelExtension - [`KT-69927`](https://youtrack.jetbrains.com/issue/KT-69927) Need ability to pass KotlinJvmCompilerOptions to registerKotlinJvmCompileTask() - [`KT-71227`](https://youtrack.jetbrains.com/issue/KT-71227) \[Compose] Add PausableComposition feature flag to the Compose Gradle Plugin - [`KT-68345`](https://youtrack.jetbrains.com/issue/KT-68345) 'composeCompiler#stabilityConfigurationFile' doesn't allow setting multiple stability configuration files ##### Performance Improvements - [`KT-65285`](https://youtrack.jetbrains.com/issue/KT-65285) Use uncompressed Klibs ##### Fixes - [`KT-71411`](https://youtrack.jetbrains.com/issue/KT-71411) Add FUS statistics for new Dokka tasks - [`KT-72495`](https://youtrack.jetbrains.com/issue/KT-72495) Warn about kotlin-compiler-embeddable loaded along KGP - [`KT-70543`](https://youtrack.jetbrains.com/issue/KT-70543) Gradle: create migration guide for those who are using Kotlin compiler classes indirectly available in buildscripts - [`KT-69329`](https://youtrack.jetbrains.com/issue/KT-69329) Compatibility with Gradle 8.9 release - [`KT-71291`](https://youtrack.jetbrains.com/issue/KT-71291) Log plugins from the list as Gradle plugins - [`KT-69255`](https://youtrack.jetbrains.com/issue/KT-69255) Deprecate KotlinCompilationOutput#resourcesDirProvider - [`KT-61706`](https://youtrack.jetbrains.com/issue/KT-61706) Gradle: remove kotlin-compiler-embeddable from build runtime dependencies - [`KT-73128`](https://youtrack.jetbrains.com/issue/KT-73128) Apply Kotlinlang template for partial HTMLs - [`KT-47897`](https://youtrack.jetbrains.com/issue/KT-47897) Official Kotlin Gradle plugin api - [`KT-58858`](https://youtrack.jetbrains.com/issue/KT-58858) Add KDoc documentation for Kotlin Gradle plugin API - [`KT-73076`](https://youtrack.jetbrains.com/issue/KT-73076) Kotlin Gradle Plugin API Reference: adjust settings - [`KT-72387`](https://youtrack.jetbrains.com/issue/KT-72387) KGP 2.1.0-RC-227 changes cause KSP to crash calling produceUnpackedKlib - [`KT-53280`](https://youtrack.jetbrains.com/issue/KT-53280) Gradle plugin leaks some compiler related extensions into API - [`KT-69851`](https://youtrack.jetbrains.com/issue/KT-69851) Compatibility with Gradle 8.10 release - [`KT-65565`](https://youtrack.jetbrains.com/issue/KT-65565) Remove deprecated common platform plugin id - [`KT-69719`](https://youtrack.jetbrains.com/issue/KT-69719) Bump minimal supported Gradle version to 7.6.3 - [`KT-69721`](https://youtrack.jetbrains.com/issue/KT-69721) Bump minimal supported Android Gradle plugin version to 7.3.1 - [`KT-66944`](https://youtrack.jetbrains.com/issue/KT-66944) Relax host requirements on Kotlin klib compilation - [`KT-72651`](https://youtrack.jetbrains.com/issue/KT-72651) Unable to use `target` for KotlinBaseApiPlugin.createKotlin(Jvm/Android)Extension() - [`KT-72467`](https://youtrack.jetbrains.com/issue/KT-72467) kotlin.sourceSets extension not added for KotlinBaseApiPlugin.createKotlinAndroidExtension() - [`KT-72303`](https://youtrack.jetbrains.com/issue/KT-72303) KGP 2.1.0-Beta2 broke compatibility with KSP - [`KT-68596`](https://youtrack.jetbrains.com/issue/KT-68596) Update KGP deprecations before 2.1 - [`KT-67951`](https://youtrack.jetbrains.com/issue/KT-67951) Update Compose extension KDoc - [`KT-66049`](https://youtrack.jetbrains.com/issue/KT-66049) KGP JVM: Publishing isn't compatible with isolated projects and project dependencies - [`KT-71405`](https://youtrack.jetbrains.com/issue/KT-71405) Compose compiler gradle plugin: project.layout.file can't be used as a value of the 'stabilityConfigurationFiles' option - [`KT-71948`](https://youtrack.jetbrains.com/issue/KT-71948) KotlinJvmFactory : get rid of replaces with TODO() - [`KT-72092`](https://youtrack.jetbrains.com/issue/KT-72092) Gradle: use packed klib variant as the default when no packaging attribute is present - [`KT-58956`](https://youtrack.jetbrains.com/issue/KT-58956) Offer a shared interface for JVM and Android compilerOptions in Project extension - [`KT-70251`](https://youtrack.jetbrains.com/issue/KT-70251) Gradle: hide compiler symbols in KGP - [`KT-70430`](https://youtrack.jetbrains.com/issue/KT-70430) Clean-up obsolete Gradle plugin variants for Gradle versions <7.6 - [`KT-69853`](https://youtrack.jetbrains.com/issue/KT-69853) Compile against Gradle API 8.10 - [`KT-69852`](https://youtrack.jetbrains.com/issue/KT-69852) Run Gradle integration tests against Gradle 8.10 release - [`KT-65990`](https://youtrack.jetbrains.com/issue/KT-65990) Update `GradleDeprecatedOption.level` values for arguments removed from the DSL after 2.1 - [`KT-69331`](https://youtrack.jetbrains.com/issue/KT-69331) Run tests against Gradle 8.9 release - [`KT-69332`](https://youtrack.jetbrains.com/issue/KT-69332) Compile against Gradle 8.9 API - [`KT-67174`](https://youtrack.jetbrains.com/issue/KT-67174) Cleanup old Test DSL - [`KT-71071`](https://youtrack.jetbrains.com/issue/KT-71071) BuildFusStatisticsIT.testInvalidFusReportDir test failes on Windows - [`KT-69585`](https://youtrack.jetbrains.com/issue/KT-69585) KGP / Composite Build: "Could not apply withXml() to generated POM" during publishing - [`KT-59769`](https://youtrack.jetbrains.com/issue/KT-59769) Many "Unexpected exception happened" warnings during build without internet connection ##### Tools. Gradle. Cocoapods - [`KT-63811`](https://youtrack.jetbrains.com/issue/KT-63811) cinterop fails to build klib for iosArm64 target when iOS simulator SDK isn't installed - [`KT-70500`](https://youtrack.jetbrains.com/issue/KT-70500) Remove useLibraries from CocoaPods plugin - [`KT-56947`](https://youtrack.jetbrains.com/issue/KT-56947) Replace AFNetworking with a smaller library in tests ##### Tools. Gradle. JS - [`KT-69628`](https://youtrack.jetbrains.com/issue/KT-69628) K/Wasm: Node.js version per project - [`KT-71578`](https://youtrack.jetbrains.com/issue/KT-71578) KotlinJS. Webpack does not recompile on changes with `per-file` - [`KT-71536`](https://youtrack.jetbrains.com/issue/KT-71536) \[JS, Wasm] Stop collecting information about KLIB IC in Kotlin2JsCompile - [`KT-70621`](https://youtrack.jetbrains.com/issue/KT-70621) Move kotlin-test-js-runner out of Kotlin repository - [`KT-67442`](https://youtrack.jetbrains.com/issue/KT-67442) KJS / Gradle: `kotlinStorePackageLock` fails due to OS-dependent lockfile with npm package manager ##### Tools. Gradle. Multiplatform ##### New Features - [`KT-70469`](https://youtrack.jetbrains.com/issue/KT-70469) Add feature flag for Project Isolation and Kotlin Multiplatform - [`KT-70897`](https://youtrack.jetbrains.com/issue/KT-70897) Add KotlinBaseApiPlugin.kotlinAndroidExtension ##### Fixes - [`KT-71206`](https://youtrack.jetbrains.com/issue/KT-71206) KGP: Test source set may get duplicated KLIBs of different versions - [`KT-71209`](https://youtrack.jetbrains.com/issue/KT-71209) Drop Hierarchy Template diagnostic about used shortcuts - [`KT-69412`](https://youtrack.jetbrains.com/issue/KT-69412) Change `KotlinTargetAlreadyDeclaredChecker`'s severity from warning to error - [`KT-70060`](https://youtrack.jetbrains.com/issue/KT-70060) KGP: handleHierarchicalStructureFlagsMigration doesn't support project isolation - [`KT-57280`](https://youtrack.jetbrains.com/issue/KT-57280) Expose Kotlin Project Structure metadata via consumable configurations instead of accessing all gradle projects directly - [`KT-64999`](https://youtrack.jetbrains.com/issue/KT-64999) Support Project Isolation with Kotlin Native tasks (XCode integration, Cocoapods etc) - [`KT-64998`](https://youtrack.jetbrains.com/issue/KT-64998) Granular Metadata Dependencies Transformation is not compatible with Project Isolation - [`KT-70650`](https://youtrack.jetbrains.com/issue/KT-70650) GenerateProjectStructureMetadata is not compatible with Project Isolation - [`KT-71675`](https://youtrack.jetbrains.com/issue/KT-71675) checkSandboxAndWriteProtection collides with Compose's syncComposeResources - [`KT-66461`](https://youtrack.jetbrains.com/issue/KT-66461) Promote compiler options DSL for multiplatform projects to stable - [`KT-69323`](https://youtrack.jetbrains.com/issue/KT-69323) Don't pass platform dependencies to metadata compilation - [`KT-72454`](https://youtrack.jetbrains.com/issue/KT-72454) Revert changes made in KT-69899 i.e. make kotlin.android.buildTypeAttribute.keep = false by default again - [`KT-70380`](https://youtrack.jetbrains.com/issue/KT-70380) KMM App failed to consume android binary lib - [`KT-71423`](https://youtrack.jetbrains.com/issue/KT-71423) Xcode archive missing dSYM files since Kotlin 2.0.20 - [`KT-69899`](https://youtrack.jetbrains.com/issue/KT-69899) KMP: Publish BuildType by default for android publications with multiple variants - [`KT-71428`](https://youtrack.jetbrains.com/issue/KT-71428) Change deprecation message for KMP target shorcuts - [`KT-58231`](https://youtrack.jetbrains.com/issue/KT-58231) Kotlin Gradle Plugin: set deprecation level to Error for KotlinTarget.useDisambiguationClassifierAsSourceSetNamePrefix and overrideDisambiguationClassifierOnIdeImport - [`KT-72068`](https://youtrack.jetbrains.com/issue/KT-72068) Distribution for klib cross-compilation is not downloaded during compile tasks - [`KT-70612`](https://youtrack.jetbrains.com/issue/KT-70612) Report incompatibility warning when Project Isolation enabled and Included builds are used - [`KT-71529`](https://youtrack.jetbrains.com/issue/KT-71529) Deprecate targetFromPreset API with an error - [`KT-69614`](https://youtrack.jetbrains.com/issue/KT-69614) Deprecate with error ios/tvos/watchos presets - [`KT-69974`](https://youtrack.jetbrains.com/issue/KT-69974) KMP: POM dependency rewriter doesn't work with Included Builds OR dependencySubstitution - [`KT-69472`](https://youtrack.jetbrains.com/issue/KT-69472) Remove IncompatibleAgpVersionTooHighWarning diagnostic - [`KT-64996`](https://youtrack.jetbrains.com/issue/KT-64996) Commonize Native Distribution task is not compatible with Project Isolation - [`KT-62911`](https://youtrack.jetbrains.com/issue/KT-62911) Export Kotlin Multipaltform Project Coordinates as a secondary variant of apiMetadataElements - [`KT-70888`](https://youtrack.jetbrains.com/issue/KT-70888) Project isolation: Project cannot dynamically look up a property in the parent project at PropertiesProvider.propertiesWithPrefix - [`KT-70688`](https://youtrack.jetbrains.com/issue/KT-70688) Move ExperimentalSwiftExportDsl to another package - [`KT-58298`](https://youtrack.jetbrains.com/issue/KT-58298) AndroidAndJavaConsumeMppLibIT maintenance: Convert to new infrastructure and add test for newer AGP versions - [`KT-68976`](https://youtrack.jetbrains.com/issue/KT-68976) K2 IDE: Unresolved FileSystem.SYSTEM from OKIO in shared source sets ##### Tools. Gradle. Native - [`KT-67162`](https://youtrack.jetbrains.com/issue/KT-67162) KGP: Kotlin/Native with Isolated Projects: kotlinNativeBundleBuildService cannot be changed any futher - [`KT-72366`](https://youtrack.jetbrains.com/issue/KT-72366) KGP 2.1.0-Beta2 doesn't download `kotlin-native-prebuilt` when running Dokka - [`KT-45559`](https://youtrack.jetbrains.com/issue/KT-45559) CInteropProcess: Changes to header files are not recognized; Task is still UP-TO-DATE - [`KT-71051`](https://youtrack.jetbrains.com/issue/KT-71051) K/N dependencies are re-downloaded multiple times on Windows - [`KT-71398`](https://youtrack.jetbrains.com/issue/KT-71398) kotlinNativeBundleConfiguration should not contain dependencies on unsupported platforms - [`KT-71722`](https://youtrack.jetbrains.com/issue/KT-71722) kotlinNativeBundleConfiguration present in JVM-only Gradle project - [`KT-55832`](https://youtrack.jetbrains.com/issue/KT-55832) Support passing errors to Xcode when configuration cache is enabled - [`KT-70690`](https://youtrack.jetbrains.com/issue/KT-70690) not possible to build iOS app with Swift Export and Xcode 16 - [`KT-65838`](https://youtrack.jetbrains.com/issue/KT-65838) Remove project usage from PlatformLibrariesGenerator - [`KT-70875`](https://youtrack.jetbrains.com/issue/KT-70875) KSP1 native tasks fail on configuration phase ##### Tools. Incremental Compile - [`KT-69123`](https://youtrack.jetbrains.com/issue/KT-69123) IC: "NoSuchFieldError: No instance field". Not tracking changes to Android ViewBinding class ##### Tools. JPS - [`KT-68565`](https://youtrack.jetbrains.com/issue/KT-68565) K2: IllegalStateException: Source classes should be created separately before referencing - [`KT-71042`](https://youtrack.jetbrains.com/issue/KT-71042) `JAVA_MODULE_DOES_NOT_READ_UNNAMED_MODULE` when compiling IntelliJ ##### Tools. Kapt - [`KT-72249`](https://youtrack.jetbrains.com/issue/KT-72249) K2 KAPT Not picking up use site annontation like K1 Kapt - [`KT-69860`](https://youtrack.jetbrains.com/issue/KT-69860) K2 kapt: use compiler directly instead of Analysis API - [`KT-71776`](https://youtrack.jetbrains.com/issue/KT-71776) K2 Kapt in 2.1.0-Beta1 fails with `e: java.lang.IllegalStateException: FIR symbol "class org.jetbrains.kotlin.fir.symbols.impl.FirValueParameterSymbol" is not supported in constant evaluation` - [`KT-70879`](https://youtrack.jetbrains.com/issue/KT-70879) Kapt: check that Kotlin 2.1 language features are ignored correctly by K1 kapt - [`KT-71431`](https://youtrack.jetbrains.com/issue/KT-71431) K2KAPT fails on modules without any annotation processors - [`KT-70600`](https://youtrack.jetbrains.com/issue/KT-70600) K2 KAPT: inline reified function has a null signature - [`KT-70718`](https://youtrack.jetbrains.com/issue/KT-70718) Kapt: "error: could not load module <Error module>" on error type in data class component - [`KT-69861`](https://youtrack.jetbrains.com/issue/KT-69861) Kapt: use IR to obtain line information instead of PSI ##### Tools. REPL - [`KT-71109`](https://youtrack.jetbrains.com/issue/KT-71109) Kotlin Scripting REPL doesn't support keyboard shortcuts ##### Tools. Scripts - [`KT-68685`](https://youtrack.jetbrains.com/issue/KT-68685) K2 / Script: "KotlinReflectionInternalError: Unresolved class:" caused by main.kts script with nested classes and reflection - [`KT-68545`](https://youtrack.jetbrains.com/issue/KT-68545) Using labeled `this` access to implicit receivers fails in scripts ##### Tools. Wasm - [`KT-67797`](https://youtrack.jetbrains.com/issue/KT-67797) Improve the variable view during debugging in Fleet for Kotlin/Wasm - [`KT-71506`](https://youtrack.jetbrains.com/issue/KT-71506) \[Wasm, IC] FUS report for builds with incremental compilation - [`KT-70100`](https://youtrack.jetbrains.com/issue/KT-70100) wasmJs Target Fails to Compile on ARM64 Linux - [`KT-70367`](https://youtrack.jetbrains.com/issue/KT-70367) Update binaryen once we get a release with PR 6793 - [`KT-67863`](https://youtrack.jetbrains.com/issue/KT-67863) K/Wasm: Remove ChromeWasmGc - [`KT-71360`](https://youtrack.jetbrains.com/issue/KT-71360) K/JS & K/Wasm: Upgrade NPM dependencies - [`KT-70297`](https://youtrack.jetbrains.com/issue/KT-70297) Wasm: Incorrect kotlinJsTestRunner version set in Multi-Project Builds with mixed kotlin-stdlibs ### [`v2.0.21`](https://github.com/JetBrains/kotlin/releases/tag/v2.0.21): Kotlin 2.0.21 ##### Changelog ##### Apple Ecosystem - [`KT-69093`](https://youtrack.jetbrains.com/issue/KT-69093) Xcode 16 support in Kotlin ##### Backend. Native. Debug - [`KT-71374`](https://youtrack.jetbrains.com/issue/KT-71374) lldb: step out breaks breaking in Xcode 16 ##### Compiler ##### Fixes - [`KT-69735`](https://youtrack.jetbrains.com/issue/KT-69735) K2: Static fields are missing from the declaration list of corresponding IrClass for java class - [`KT-71122`](https://youtrack.jetbrains.com/issue/KT-71122) Regression in Kotlin Compiler 2.0 causing NPE in the runtime - [`KT-70931`](https://youtrack.jetbrains.com/issue/KT-70931) K2 / Scripts: "cannot convert IrExpression to ConstantValue" when using function annotation - [`KT-70584`](https://youtrack.jetbrains.com/issue/KT-70584) K2: "IllegalStateException: flow for PostponedLambdaExitNode not initialized - traversing nodes in wrong order?" - [`KT-70808`](https://youtrack.jetbrains.com/issue/KT-70808) K2: "node has already been visited" with anonymous object in dead code - [`KT-69985`](https://youtrack.jetbrains.com/issue/KT-69985) K2: Classifier declarations from root package are resolved without imports in non-root packages - [`KT-70683`](https://youtrack.jetbrains.com/issue/KT-70683) K2: Internal compiler error in IrFakeOverrideSymbolBase.getOwner - [`KT-70901`](https://youtrack.jetbrains.com/issue/KT-70901) False positive Public-API inline function cannot access non-public-API property accessor - [`KT-70930`](https://youtrack.jetbrains.com/issue/KT-70930) K2: Java annotations not present on ENUM\_ENTRY IR elements - [`KT-70194`](https://youtrack.jetbrains.com/issue/KT-70194) K2 IDE: exception on a very red file - [`KT-69399`](https://youtrack.jetbrains.com/issue/KT-69399) Native: IllegalStateException: "Failed to build cache" ##### Compose compiler ##### Fixes - [`b/329477544`](https://issuetracker.google.com/issues/329477544) Force open / overridden Composable functions to be non-restartable. - [`b/361652128`](https://issuetracker.google.com/issues/361652128) Disable live literal transform if the corresponding flag is disabled ##### IR. Actualizer - [`KT-70894`](https://youtrack.jetbrains.com/issue/KT-70894) IR crash. Unprocessed `IrFunctionFakeOverrideSymbol` when actualize to Java ##### IR. Tree - [`KT-71191`](https://youtrack.jetbrains.com/issue/KT-71191) SymbolTable: Check if the provided signature is public before adding a symbol to the SymbolTable ##### Native. Build Infrastructure - [`KT-71485`](https://youtrack.jetbrains.com/issue/KT-71485) K/N runtime parts don't build due to \_Float16 issues on x86\_64 macOS ##### Native. C Export - [`KT-69507`](https://youtrack.jetbrains.com/issue/KT-69507) LLVM 11 clang with Xcode 16 headers: standard c++ headers ##### Native. C and ObjC Import - [`KT-71029`](https://youtrack.jetbrains.com/issue/KT-71029) Investigate why stdarg.h declarations leak into testModuleA ##### Native. Platform Libraries - [`KT-70566`](https://youtrack.jetbrains.com/issue/KT-70566) LLVM 11 clang with Xcode 16 headers: 'sys/cdefs.h' file not found - [`KT-71624`](https://youtrack.jetbrains.com/issue/KT-71624) Eliminate remaining UIKit/AppKit removed signatures - [`KT-70031`](https://youtrack.jetbrains.com/issue/KT-70031) Rebuild platform libraries in 2.0.21 with Xcode 16 ##### Native. Testing - [`KT-70603`](https://youtrack.jetbrains.com/issue/KT-70603) C++ with -fmodules: cyclic dependency in module 'std': std -> \_wctype -> \_\_wctype -> std in dev llvm toolchains ##### Tools. CLI. Native - [`KT-71262`](https://youtrack.jetbrains.com/issue/KT-71262) KotlinNativeLink tasks fetching from network despite -Xoverride-konan-properties=dependenciesUrl= being set ##### Tools. Compiler Plugins - [`KT-71038`](https://youtrack.jetbrains.com/issue/KT-71038) PowerAssert: Constant on RHS of elvis operator leads to compiler crash ##### Tools. Daemon - [`KT-35381`](https://youtrack.jetbrains.com/issue/KT-35381) Get rid of the native-platform usage in kotlin compiler ##### Tools. Gradle. Multiplatform - [`KT-71444`](https://youtrack.jetbrains.com/issue/KT-71444) Certain POMs produced by Kotlin 2.0.20 cannot be consumed by KMP projects with Android targets - [`KT-70700`](https://youtrack.jetbrains.com/issue/KT-70700) Gradle 8.10: The value for task ':commonizeNativeDistribution' property 'kotlinNativeBundleBuildService' cannot be changed any further - [`KT-71396`](https://youtrack.jetbrains.com/issue/KT-71396) Gradle client side JVM explodes with OOM due to xcodebuild logs ##### Tools. Gradle. Native - [`KT-71419`](https://youtrack.jetbrains.com/issue/KT-71419) Light bundle KGP IT run against a stable K/N version ##### Tools. JPS - [`KT-71450`](https://youtrack.jetbrains.com/issue/KT-71450) Constant build failure: com.intellij.util.io.ClosedStorageException: storage is already closed ### [`v2.0.20`](https://github.com/JetBrains/kotlin/releases/tag/v2.0.20): Kotlin 2.0.20 ##### Changelog ##### Analysis. API ##### New Features - [`KT-68143`](https://youtrack.jetbrains.com/issue/KT-68143) Analysis API: support KtWhenConditionInRange call resolution ##### Performance Improvements - [`KT-67195`](https://youtrack.jetbrains.com/issue/KT-67195) K2: do not call redundant resolve on body resolution phase for classes ##### Fixes - [`KT-67360`](https://youtrack.jetbrains.com/issue/KT-67360) Analysis API: KtDestructuringDeclarationSymbol#entries shouldn't be KtLocalVariableSymbol - [`KT-67748`](https://youtrack.jetbrains.com/issue/KT-67748) K2: AllCandidatesResolver modifies the original FirDelegatedConstructorCall - [`KT-68198`](https://youtrack.jetbrains.com/issue/KT-68198) Analysis API: Support application service registration in plugin XMLs - [`KT-62936`](https://youtrack.jetbrains.com/issue/KT-62936) Analysis API: NativeForwardDeclarationsSymbolProvider is not supported for Kotlin/Native - [`KT-68689`](https://youtrack.jetbrains.com/issue/KT-68689) LL API: support analysis from builtins module - [`KT-69630`](https://youtrack.jetbrains.com/issue/KT-69630) KAPT User project builds with KAPT4 enabled fail with Metaspace overflow - [`KT-65417`](https://youtrack.jetbrains.com/issue/KT-65417) K2 IDE: KTOR false positive expect-actual matching error on enum class because of implicit clone() in non-JVM source sets - [`KT-68882`](https://youtrack.jetbrains.com/issue/KT-68882) Analysis API: Refactor `KaSymbol`s - [`KT-65413`](https://youtrack.jetbrains.com/issue/KT-65413) K2 IDE: KTOR unresolved serializer() call for `@Serializable` class in common code - [`KT-67996`](https://youtrack.jetbrains.com/issue/KT-67996) Analysis API: rename Kt prefix to Ka - [`KT-67775`](https://youtrack.jetbrains.com/issue/KT-67775) Analysis API: expose only interfaces/abstract classes for the user surface - [`KT-68009`](https://youtrack.jetbrains.com/issue/KT-68009) K2: lowering transformers of Compose compiler plugin access AbstractFir2IrLazyFunction modality, which results in null point exception - [`KT-68918`](https://youtrack.jetbrains.com/issue/KT-68918) collectCallCandidates works incorrectly for parenthesis invoke - [`KT-68462`](https://youtrack.jetbrains.com/issue/KT-68462) Analysis API: Integrate `project-structure` module into `analysis-api` and `analysis-api-platform-interface` - [`KT-69131`](https://youtrack.jetbrains.com/issue/KT-69131) AA: "provideDelegate" operator is not resolved from the delegation reference in FIR implementation - [`KT-69055`](https://youtrack.jetbrains.com/issue/KT-69055) Analysis API: Stabilize `KaScope`s - [`KT-66216`](https://youtrack.jetbrains.com/issue/KT-66216) K2 IDE. "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtProperty, fir is null" on incorrect string template - [`KT-68959`](https://youtrack.jetbrains.com/issue/KT-68959) Introduce KaSeverity - [`KT-53669`](https://youtrack.jetbrains.com/issue/KT-53669) Analysis API: redesign KtSymbolOrigin to distinguish kotlin/java source/library declarations - [`KT-68846`](https://youtrack.jetbrains.com/issue/KT-68846) Mark KaFirReference and all implementations with internal modifier - [`KT-68845`](https://youtrack.jetbrains.com/issue/KT-68845) Move KaSymbolBasedReference to resolution package - [`KT-68844`](https://youtrack.jetbrains.com/issue/KT-68844) Move KaTypeProjection to types package - [`KT-65849`](https://youtrack.jetbrains.com/issue/KT-65849) K2: Rename 'high-level-api' family of JARs to 'analysis-api' - [`KT-62540`](https://youtrack.jetbrains.com/issue/KT-62540) Remove uses of TypeInfo.fromString and TypeInfo.createTypeText from Kotlin plugin - [`KT-62889`](https://youtrack.jetbrains.com/issue/KT-62889) K2 IDE. FP `MISSING_DEPENDENCY_CLASS` on not available type alias with available underlying type - [`KT-68155`](https://youtrack.jetbrains.com/issue/KT-68155) Analysis API: Add PSI validity check to `analyze` - [`KT-62343`](https://youtrack.jetbrains.com/issue/KT-62343) Analysis API: fix binary incopatibility problems cause by `KtAnalysisSessionProvider.analyze` being inline - [`KT-68498`](https://youtrack.jetbrains.com/issue/KT-68498) To get reference symbol the one should be KtSymbolBasedReference - [`KT-68393`](https://youtrack.jetbrains.com/issue/KT-68393) Analysis API: Rename `KaClassLikeSymbol. classIdIfNonLocal` to `classId` - [`KT-62924`](https://youtrack.jetbrains.com/issue/KT-62924) Analysis API: rename KtCallableSymbol.callableIdIfNonLocal -> callableId - [`KT-66712`](https://youtrack.jetbrains.com/issue/KT-66712) K2 IDE. SOE on settings string template for string variable with the same name - [`KT-65892`](https://youtrack.jetbrains.com/issue/KT-65892) K2: "We should be able to find a symbol" for findNonLocalFunction - [`KT-68273`](https://youtrack.jetbrains.com/issue/KT-68273) AA: support `KtFirKDocReference#isReferenceToImportAlias` - [`KT-68272`](https://youtrack.jetbrains.com/issue/KT-68272) AA: KtFirReference.isReferenceToImportAlias doesn't work for references on constructor - [`KT-66996`](https://youtrack.jetbrains.com/issue/KT-66996) Analysis API: Expose the abbreviated type of an expanded `KtType` - [`KT-66646`](https://youtrack.jetbrains.com/issue/KT-66646) K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl from FirJsHelpersKt.isExportedObject - [`KT-68203`](https://youtrack.jetbrains.com/issue/KT-68203) K2: Analysis API: wrong type of receiver value in case of imported object member - [`KT-68031`](https://youtrack.jetbrains.com/issue/KT-68031) LL resolve crash in case of PCLA inference with local object - [`KT-67851`](https://youtrack.jetbrains.com/issue/KT-67851) K2: `PsiReference#isReferenceTo` always returns false for references to Java getters - [`KT-68076`](https://youtrack.jetbrains.com/issue/KT-68076) AA: use type code fragments for import alias detection - [`KT-65915`](https://youtrack.jetbrains.com/issue/KT-65915) K2: Analysis API: extract services registration into xml file - [`KT-68049`](https://youtrack.jetbrains.com/issue/KT-68049) Analysis API: do not expose imported symbols - [`KT-68075`](https://youtrack.jetbrains.com/issue/KT-68075) K2: Analysis API: Type arguments for delegation constructor to java constructor with type parameters not supported - [`KT-65190`](https://youtrack.jetbrains.com/issue/KT-65190) AA: reference to the super type is not resolved - [`KT-68070`](https://youtrack.jetbrains.com/issue/KT-68070) AA: KtExpressionInfoProvider#isUsedAsExpression doesn't work for KtPropertyDelegate - [`KT-67743`](https://youtrack.jetbrains.com/issue/KT-67743) K2: Stubs & AbbreviatedTypeAttribute - [`KT-67706`](https://youtrack.jetbrains.com/issue/KT-67706) K2: "KtDotQualifiedExpression is not a subtype of class KtNamedDeclaration" from UnusedChecker - [`KT-68021`](https://youtrack.jetbrains.com/issue/KT-68021) Analysis API: do not break the diagnostic collection in a case of exception from some collector - [`KT-67973`](https://youtrack.jetbrains.com/issue/KT-67973) AA FIR: wrong KtCall modeling for == from type bound - [`KT-67949`](https://youtrack.jetbrains.com/issue/KT-67949) AA: Type arguments of Java methods' calls are not reported as used by KtFirImportOptimizer - [`KT-67988`](https://youtrack.jetbrains.com/issue/KT-67988) AA: functional type at receiver position should be wrapped in parenthesis - [`KT-66536`](https://youtrack.jetbrains.com/issue/KT-66536) Analysis API: ContextCollector doesn't provide implicit receivers from FirExpressionResolutionExtension - [`KT-67321`](https://youtrack.jetbrains.com/issue/KT-67321) AA: Type arguments of Java methods' calls are not resolved - [`KT-64158`](https://youtrack.jetbrains.com/issue/KT-64158) K2: "KotlinIllegalArgumentExceptionWithAttachments: No fir element was found for KtParameter" - [`KT-60344`](https://youtrack.jetbrains.com/issue/KT-60344) K2 IDE. "KotlinExceptionWithAttachments: expect `createKtCall` to succeed for resolvable case with callable symbol" on attempt to assign value to param named getParam - [`KT-64599`](https://youtrack.jetbrains.com/issue/KT-64599) K2: "expect `createKtCall` to succeed for resolvable case with callable" for unfinished if statement - [`KT-60330`](https://youtrack.jetbrains.com/issue/KT-60330) K2 IDE. ".KotlinExceptionWithAttachments: expect `createKtCall` to succeed for resolvable case with callable symbol" on attempt to assign or compare true with something - [`KT-66672`](https://youtrack.jetbrains.com/issue/KT-66672) K2 IDE. False positive INVISIBLE\_REFERENCE on accessing private subclass as type argument in parent class declaration - [`KT-67750`](https://youtrack.jetbrains.com/issue/KT-67750) Analysis API: Remove `infix` modifiers from type equality and subtyping functions - [`KT-67655`](https://youtrack.jetbrains.com/issue/KT-67655) Analysis API: declare a rule how to deal with parameters in KtLifetimeOwner - [`KT-61775`](https://youtrack.jetbrains.com/issue/KT-61775) Analysis API: KtKClassAnnotationValue lacks complete type information - [`KT-67168`](https://youtrack.jetbrains.com/issue/KT-67168) K2: Analysis API: Rendering is broken for JSR-305 enhanced Java types - [`KT-66689`](https://youtrack.jetbrains.com/issue/KT-66689) Analysis API: KtFirPackageScope shouldn't rely on KotlinDeclarationProvider for binary dependencies in standalone mode - [`KT-60483`](https://youtrack.jetbrains.com/issue/KT-60483) Analysis API: add isTailrec property to KtFunctionSymbol - [`KT-67472`](https://youtrack.jetbrains.com/issue/KT-67472) K2: Analysis API FIR: KtFunctionCall misses argument with desugared expressions - [`KT-65759`](https://youtrack.jetbrains.com/issue/KT-65759) Analysis API: Avoid hard references to `LLFirSession` in session validity trackers - [`KT-60272`](https://youtrack.jetbrains.com/issue/KT-60272) K2: Implement active invalidation of `KtAnalysisSession`s - [`KT-66765`](https://youtrack.jetbrains.com/issue/KT-66765) K2: Analysis API: support classpath substitution with library dependencies in super type transformer - [`KT-67265`](https://youtrack.jetbrains.com/issue/KT-67265) K2: status phase should resolve original declarations in the case of classpath subsitution - [`KT-67244`](https://youtrack.jetbrains.com/issue/KT-67244) K2: StackOverflowError in the case of cyclic type hierarchy and library classpath substitution - [`KT-67080`](https://youtrack.jetbrains.com/issue/KT-67080) K2: clearer contract for lazyResolveToPhaseWithCallableMembers - [`KT-66713`](https://youtrack.jetbrains.com/issue/KT-66713) K2 FIR: Expose a way to get the module name used for name mangling - [`KT-61892`](https://youtrack.jetbrains.com/issue/KT-61892) KtType#asPsiType could provide nullability annotations - [`KT-66122`](https://youtrack.jetbrains.com/issue/KT-66122) Analysis API: Pass `KtTestModule` instead of `TestModule` to tests based on `AbstractAnalysisApiBasedTest` ##### Analysis. Light Classes - [`KT-65714`](https://youtrack.jetbrains.com/issue/KT-65714) K2: IDE K2: "org.jetbrains.kotlin.analysis.api.fir.symbols.pointers.KtFirClassLikeSymbolPointer pointer already disposed" - [`KT-65835`](https://youtrack.jetbrains.com/issue/KT-65835) `SymbolLightClassForClassLike.getName` returns `null` for a companion object instead of `Companion` - [`KT-68261`](https://youtrack.jetbrains.com/issue/KT-68261) SLC: Constructors of sealed classes should be private - [`KT-68696`](https://youtrack.jetbrains.com/issue/KT-68696) Drop `DecompiledPsiDeclarationProvider`-related stuff - [`KT-68404`](https://youtrack.jetbrains.com/issue/KT-68404) SLC: wrong binary resolution to declaration with `@JvmName` - [`KT-68275`](https://youtrack.jetbrains.com/issue/KT-68275) LC: no arg constructor is not visible in light classes - [`KT-66687`](https://youtrack.jetbrains.com/issue/KT-66687) Symbol Light Classes: Duplicate field names for classes with companion objects - [`KT-66804`](https://youtrack.jetbrains.com/issue/KT-66804) Symbol Light Classes: Fields from the parent interface's companion are added to DefaultImpls ##### Apple Ecosystem - [`KT-65542`](https://youtrack.jetbrains.com/issue/KT-65542) Cinterop tasks fails if Xcode 15.3 is used ##### Backend. Native. Debug - [`KT-67567`](https://youtrack.jetbrains.com/issue/KT-67567) Native: after updating to LLVM 16 lldb hangs when smooth stepping ##### Backend. Wasm - [`KT-70591`](https://youtrack.jetbrains.com/issue/KT-70591) To much sources that don't exist inside SourceMap file - [`KT-69529`](https://youtrack.jetbrains.com/issue/KT-69529) compileProductionExecutableKotlinWasmJs FAILED: No such value argument slot in IrConstructorCallImpl: 1 (total=1) - [`KT-68088`](https://youtrack.jetbrains.com/issue/KT-68088) Wasm: "UNREACHABLE executed at Precompute.cpp:838" running gradle task wasmJsBrowserDistribution for compose multiplatform on Windows - [`KT-65798`](https://youtrack.jetbrains.com/issue/KT-65798) K/Wasm: make an error on default export usage - [`KT-68828`](https://youtrack.jetbrains.com/issue/KT-68828) Wasm test failure. expect-actual. private constructor in expect - [`KT-68453`](https://youtrack.jetbrains.com/issue/KT-68453) K/Wasm: "Supported JS engine not detected" in Web Worker - [`KT-64565`](https://youtrack.jetbrains.com/issue/KT-64565) Kotlin/wasm removeEventListener function did not remove the event listener - [`KT-65322`](https://youtrack.jetbrains.com/issue/KT-65322) \[Wasm] Clean-up bootstrap code - [`KT-66099`](https://youtrack.jetbrains.com/issue/KT-66099) Wasm: local.get of type f64 has to be in the same reference type hierarchy as (ref 686) @&#8203;+237036 - [`KT-63230`](https://youtrack.jetbrains.com/issue/KT-63230) \[WASM] `println(null)` prints 'ul' ##### Compiler ##### New Features - [`KT-58310`](https://youtrack.jetbrains.com/issue/KT-58310) Consider non-functional type constraints for type variable which is an expected type for lambda argument - [`KT-68969`](https://youtrack.jetbrains.com/issue/KT-68969) Consider implementing general "redundant interpolation prefix" warning - [`KT-57872`](https://youtrack.jetbrains.com/issue/KT-57872) Improve "Public-API inline function cannot access non-public-API" check - [`KT-68165`](https://youtrack.jetbrains.com/issue/KT-68165) Native: type checks on generic types boundary - [`KT-67611`](https://youtrack.jetbrains.com/issue/KT-67611) Implement improved handling of $ in literals - [`KT-67787`](https://youtrack.jetbrains.com/issue/KT-67787) Implement guard conditions for when-with-subject - [`KT-39868`](https://youtrack.jetbrains.com/issue/KT-39868) Allow access to protected consts and fields from a super companion object - [`KT-66169`](https://youtrack.jetbrains.com/issue/KT-66169) `useContents` lacks a `contract` - [`KT-67767`](https://youtrack.jetbrains.com/issue/KT-67767) Introduce an ability to enforce explicit return types for public declarations without enabling Explicit API mode - [`KT-65841`](https://youtrack.jetbrains.com/issue/KT-65841) Allow to actualize expect types in kotlin stdlib to builtins in JVM - [`KT-53834`](https://youtrack.jetbrains.com/issue/KT-53834) Support for JSpecify `@NullUnmarked` ##### Performance Improvements - [`KT-69995`](https://youtrack.jetbrains.com/issue/KT-69995) K2: Slow compilation when star projecting mutually recursive bounds from java - [`KT-69723`](https://youtrack.jetbrains.com/issue/KT-69723) K2: code analysis taking too long - [`KT-69898`](https://youtrack.jetbrains.com/issue/KT-69898) K2: Performance degradation in fir2ir caused by changes around intersection types - [`KT-68034`](https://youtrack.jetbrains.com/issue/KT-68034) Devirtualization analysis fails to devirtualize string.get ##### Fixes - [`KT-67102`](https://youtrack.jetbrains.com/issue/KT-67102) IR Evaluator: NoSuchFieldException when accessing a private delegated property - [`KT-35305`](https://youtrack.jetbrains.com/issue/KT-35305) "Overload resolution ambiguity" on function for unsigned types (UByte, UShort, UInt, ULong) - [`KT-69211`](https://youtrack.jetbrains.com/issue/KT-69211) K2: java.lang.IllegalArgumentException: Failed requirement - [`KT-68874`](https://youtrack.jetbrains.com/issue/KT-68874) Types with different captured types as type arguments are rendered incorrectly - [`KT-66086`](https://youtrack.jetbrains.com/issue/KT-66086) K/N: Unchecked illegal cast is not thrown - [`KT-70186`](https://youtrack.jetbrains.com/issue/KT-70186) Kotlin 2.0.20-Beta2: Unexpected number of type arguments: 0 - [`KT-68889`](https://youtrack.jetbrains.com/issue/KT-68889) K2: type variable should not be fixed - [`KT-69835`](https://youtrack.jetbrains.com/issue/KT-69835) K2 / Native: kotlin.native.binary.gc=cms throws library cached but its dependency isn't error - [`KT-70417`](https://youtrack.jetbrains.com/issue/KT-70417) DELEGATED\_MEMBER\_HIDES\_SUPERTYPE\_OVERRIDE leads to NPE in BE - [`KT-69964`](https://youtrack.jetbrains.com/issue/KT-69964) K2: Returning from an in-place lambda doesn't compile - [`KT-69773`](https://youtrack.jetbrains.com/issue/KT-69773) K2: "Overload resolution ambiguity between candidate" with arrays - [`KT-60261`](https://youtrack.jetbrains.com/issue/KT-60261) K2: No origin is set for composite assignment operators - [`KT-15388`](https://youtrack.jetbrains.com/issue/KT-15388) Forbid delegated property to have external getter/setter - [`KT-70238`](https://youtrack.jetbrains.com/issue/KT-70238) K2: false negative VOLATILE\_ON\_VALUE for constructor properties - [`KT-68669`](https://youtrack.jetbrains.com/issue/KT-68669) K2: Generate inherited delegated members after actualization - [`KT-63828`](https://youtrack.jetbrains.com/issue/KT-63828) K2: Missing `signature` metadata for accessors of properties inherited from delegate - [`KT-63871`](https://youtrack.jetbrains.com/issue/KT-63871) K2: different value of `isNotDefault ` flag for property inherited from delegate - [`KT-67119`](https://youtrack.jetbrains.com/issue/KT-67119) Migration warning from context receivers to context parameters - [`KT-68997`](https://youtrack.jetbrains.com/issue/KT-68997) K2: "No accessor found" for an inline value class when query the value of a delegated class by reflection - [`KT-64106`](https://youtrack.jetbrains.com/issue/KT-64106) Native: the compiler allows using `-opt` and `-g` at the same time - [`KT-69766`](https://youtrack.jetbrains.com/issue/KT-69766) K2: False negative: Internal setter of generic class is accessible from another module - [`KT-68364`](https://youtrack.jetbrains.com/issue/KT-68364) JVM: ISE "Bad exception handler end" on a non-local break/continue inside try with finally - [`KT-69494`](https://youtrack.jetbrains.com/issue/KT-69494) StackOverflowError in CfgTraverserKt.getPreviousCfgNodes - [`KT-56880`](https://youtrack.jetbrains.com/issue/KT-56880) K2. Conflicting overloads for main() isn't shown when language version is set to 2.0 - [`KT-69282`](https://youtrack.jetbrains.com/issue/KT-69282) K2: equality of unsigned types with nullability works incorrectly - [`KT-68492`](https://youtrack.jetbrains.com/issue/KT-68492) JVM IR backend: IDE / Kotlin Debugger: AE “Non-reified type parameter under ::class should be rejected by type checker” on evaluating private generic function - [`KT-70039`](https://youtrack.jetbrains.com/issue/KT-70039) K2: inconsistent stability of vals of captured receivers - [`KT-44139`](https://youtrack.jetbrains.com/issue/KT-44139) Don't report overload resolution ambiguities if arguments contain an error type - [`KT-68996`](https://youtrack.jetbrains.com/issue/KT-68996) K2: "Not enough information to infer type argument" caused by typealias annotation with fixed generic argument - [`KT-55851`](https://youtrack.jetbrains.com/issue/KT-55851) K2: reference to a field from package private class crashes in runtime - [`KT-65038`](https://youtrack.jetbrains.com/issue/KT-65038) K2: Type alias from indirect dependency causes `MISSING_DEPENDENCY_CLASS` error - [`KT-61875`](https://youtrack.jetbrains.com/issue/KT-61875) Native: remove support for bitcode embedding - [`KT-67693`](https://youtrack.jetbrains.com/issue/KT-67693) Implement checkers for K1 compiler which will check the usage of K2 new features and report that they are not supported in K1 compiler - [`KT-68556`](https://youtrack.jetbrains.com/issue/KT-68556) K2: false negative PROPERTY\_WITH\_NO\_TYPE\_NO\_INITIALIZER on uninitialized property without type - [`KT-60445`](https://youtrack.jetbrains.com/issue/KT-60445) K2/Java: investigate possible symbol clash while enhancing Java class type parameter bounds - [`KT-64193`](https://youtrack.jetbrains.com/issue/KT-64193) K2: No smartcast with two boolean expressions in a row - [`KT-65546`](https://youtrack.jetbrains.com/issue/KT-65546) K2. implement extended checker for unused anonymous parameter in lambda - [`KT-68358`](https://youtrack.jetbrains.com/issue/KT-68358) `@EnhancedNullability` is missing on value parameter type after inheritance by delegation with strict JSpecify enabled - [`KT-67791`](https://youtrack.jetbrains.com/issue/KT-67791) False negative "Synchronizing by Meters is forbidden" with inline value classes - [`KT-69495`](https://youtrack.jetbrains.com/issue/KT-69495) k2: inconsistent output of unsigned number in string templates - [`KT-69619`](https://youtrack.jetbrains.com/issue/KT-69619) K2. JAVA\_TYPE\_MISMATCH when Kotlin out generic type used in Java - [`KT-69563`](https://youtrack.jetbrains.com/issue/KT-69563) trying to call `.source` on `FirPackageFragmentDescriptor` results in exception - [`KT-69611`](https://youtrack.jetbrains.com/issue/KT-69611) Internal annotation FlexibleArrayElementVariance is written to output jar - [`KT-69463`](https://youtrack.jetbrains.com/issue/KT-69463) K2: false negative SUPER\_CALL\_WITH\_DEFAULT\_PARAMETERS with expect/actual declarations - [`KT-68724`](https://youtrack.jetbrains.com/issue/KT-68724) K2: "ABSTRACT\_MEMBER\_NOT\_IMPLEMENTED" caused by open modifier on interface - [`KT-69182`](https://youtrack.jetbrains.com/issue/KT-69182) K2: OptIn on enum companion blocks enum constants - [`KT-69191`](https://youtrack.jetbrains.com/issue/KT-69191) K2: "Unresolved reference" caused by nested data objects - [`KT-69569`](https://youtrack.jetbrains.com/issue/KT-69569) Wrong paths when one type has multiple annotated arguments - [`KT-55128`](https://youtrack.jetbrains.com/issue/KT-55128) Wrong type path in type annotations when type arguments are compiled to wildcards - [`KT-67692`](https://youtrack.jetbrains.com/issue/KT-67692) Native: support LLVM opaque pointers in the compiler - [`KT-69402`](https://youtrack.jetbrains.com/issue/KT-69402) FirSupertypeResolverVisitor: ConcurrentModificationException - [`KT-69062`](https://youtrack.jetbrains.com/issue/KT-69062) K1: false-negative "unsupported feature" error on multi-dollar interpolation - [`KT-68967`](https://youtrack.jetbrains.com/issue/KT-68967) Consider demoting warnings about multi-dollar interpolation to IJ inspections - [`KT-68957`](https://youtrack.jetbrains.com/issue/KT-68957) False-negative diagnostics about multi-dollar interpolation on string literals without interpolation - [`KT-69476`](https://youtrack.jetbrains.com/issue/KT-69476) False negative NO\_ELSE\_IN\_WHEN on when over intersection type with expect enum/sealed class - [`KT-67069`](https://youtrack.jetbrains.com/issue/KT-67069) K2: Delegated member calls interface method instead of fake override - [`KT-63864`](https://youtrack.jetbrains.com/issue/KT-63864) K2: Missing abbreviated type in metadata - [`KT-59833`](https://youtrack.jetbrains.com/issue/KT-59833) K2: Stop modifying values of enum entries - [`KT-69421`](https://youtrack.jetbrains.com/issue/KT-69421) K2: Resolve changed from delegated function to java default function - [`KT-69392`](https://youtrack.jetbrains.com/issue/KT-69392) K2: "UNSAFE\_CALL": when with some variable subjects does not smartcast the variable - [`KT-69053`](https://youtrack.jetbrains.com/issue/KT-69053) K2: Unsupported intersection overrides for fields - [`KT-69227`](https://youtrack.jetbrains.com/issue/KT-69227) K2: "Argument type mismatch" caused by generic typealias and upper bound - [`KT-31371`](https://youtrack.jetbrains.com/issue/KT-31371) NOT\_YET\_SUPPORTED\_IN\_INLINE: incorrect error message for local inline function - [`KT-49473`](https://youtrack.jetbrains.com/issue/KT-49473) PROTECTED\_CALL\_FROM\_PUBLIC\_INLINE\_ERROR: specialize error message for 'inline' property - [`KT-49474`](https://youtrack.jetbrains.com/issue/KT-49474) NON\_PUBLIC\_CALL\_FROM\_PUBLIC\_INLINE: specialize error message for 'inline' property - [`KT-49503`](https://youtrack.jetbrains.com/issue/KT-49503) SUPER\_CALL\_FROM\_PUBLIC\_INLINE\_ERROR: specialize error message for 'inline' property - [`KT-11302`](https://youtrack.jetbrains.com/issue/KT-11302) On inapplicable '`@JvmStatic`' annotation, highlight only the annotation, not the function signature - [`KT-59510`](https://youtrack.jetbrains.com/issue/KT-59510) K2: do not render annotations in the deprecation diagnostic - [`KT-68532`](https://youtrack.jetbrains.com/issue/KT-68532) "This code uses error suppression for 'INAPPLICABLE\_JVM\_NAME'. While it might compile and work, the compiler behavior is UNSPECIFIED and WON'T BE PRESERVED" - [`KT-68859`](https://youtrack.jetbrains.com/issue/KT-68859) K2: unable to suppress only "JAVA\_MODULE\_DOES\_NOT\_EXPORT\_PACKAGE" - [`KT-68469`](https://youtrack.jetbrains.com/issue/KT-68469) \[K2] MISSING\_DEPENDENCY\_CLASS caused by redundant `@file`:JvmName - [`KT-68999`](https://youtrack.jetbrains.com/issue/KT-68999) K2: Unify the style of FIR generator with IR and SIR tree-generators - [`KT-66061`](https://youtrack.jetbrains.com/issue/KT-66061) Kotlin/Native - building shared module for iOS - Argument list too long - [`KT-49420`](https://youtrack.jetbrains.com/issue/KT-49420) Suspicious behaviour of frontend in case of DefinitelyNotNull type overload - [`KT-59752`](https://youtrack.jetbrains.com/issue/KT-59752) K2: "Conflicting overloads" if function with same signature added to different contexts - [`KT-68618`](https://youtrack.jetbrains.com/issue/KT-68618) K1: Unresolved reference for qualified this in implicit type - [`KT-25341`](https://youtrack.jetbrains.com/issue/KT-25341) NOT\_YET\_SUPPORTED\_IN\_INLINE reported over anonymous object border - [`KT-69215`](https://youtrack.jetbrains.com/issue/KT-69215) K2: IllegalArgumentException for delegated function in anonymous object with captured type parameters - [`KT-69044`](https://youtrack.jetbrains.com/issue/KT-69044) Destructuring declaration shouldn't be possible in declaration in when - [`KT-69028`](https://youtrack.jetbrains.com/issue/KT-69028) K2: `FirJvmActualizingBuiltinSymbolProvider` returns `null` on builtins declarations if common source-set is not presented - [`KT-15704`](https://youtrack.jetbrains.com/issue/KT-15704) Rethink usage of term "type annotation" in error messages - [`KT-68970`](https://youtrack.jetbrains.com/issue/KT-68970) K2. Argument type mismatch caused by out projection in inferred type from if - else - [`KT-68800`](https://youtrack.jetbrains.com/issue/KT-68800) K2: Delete `ConeAttributes.plus` method - [`KT-59389`](https://youtrack.jetbrains.com/issue/KT-59389) K2: Missing AMBIGUOUS\_LABEL - [`KT-68803`](https://youtrack.jetbrains.com/issue/KT-68803) K2: Smart cast fails with "Unresolved reference" when `@Suppress`("UNCHECKED\_CAST") used in statement - [`KT-68968`](https://youtrack.jetbrains.com/issue/KT-68968) K2: Missing ILLEGAL\_SUSPEND\_FUNCTION\_CALL diagnostic in initialization code of a local class inside suspend function - [`KT-68336`](https://youtrack.jetbrains.com/issue/KT-68336) K2 does not seem to pass the right constructor arguments to custom scripts - [`KT-68517`](https://youtrack.jetbrains.com/issue/KT-68517) "IrSimpleFunctionSymbolImpl is unbound" for actual class containing non-actual functions - [`KT-59678`](https://youtrack.jetbrains.com/issue/KT-59678) K2: Investigate `ConeKotlinType.unCapture()` - [`KT-69027`](https://youtrack.jetbrains.com/issue/KT-69027) K2: Initialize `FirStdlibBuiltinSyntheticFunctionInterfaceProvider` in library session - [`KT-62818`](https://youtrack.jetbrains.com/issue/KT-62818) K2: improve VAR\_OVERRIDDEN\_BY\_VAL diagnostic message - [`KT-68214`](https://youtrack.jetbrains.com/issue/KT-68214) Rename TypeApproximatorConfiguration properties for clarity - [`KT-68093`](https://youtrack.jetbrains.com/issue/KT-68093) Implement deprecation of smartcasts on class-delegated properties - [`KT-67270`](https://youtrack.jetbrains.com/issue/KT-67270) Native: report more performance metrics from the compiler - [`KT-68621`](https://youtrack.jetbrains.com/issue/KT-68621) DATA\_CLASS\_INVISIBLE\_COPY\_USAGE false negative for inline fun - [`KT-68568`](https://youtrack.jetbrains.com/issue/KT-68568) K2: False-positive ACCIDENTAL\_OVERRIDE caused by missing dependency class - [`KT-66723`](https://youtrack.jetbrains.com/issue/KT-66723) K2: NO\_ACTUAL\_CLASS\_MEMBER\_FOR\_EXPECTED\_CLASS for actual typealias that extends to Java class with complicated hierarchy that includes default method - [`KT-69000`](https://youtrack.jetbrains.com/issue/KT-69000) Can't render constructor of intersection type - [`KT-68849`](https://youtrack.jetbrains.com/issue/KT-68849) K2: "ClassCastException: cannot be cast to kotlin.jvm.functions.Function2" caused by passing lambda to SAM constructor results - [`KT-61744`](https://youtrack.jetbrains.com/issue/KT-61744) Native: -Xsave-llvm-ir-after fails to check errors from LLVMPrintModuleToFile - [`KT-67103`](https://youtrack.jetbrains.com/issue/KT-67103) Support AbbreviatedTypeAttribute for aliased types from the source code - [`KT-63921`](https://youtrack.jetbrains.com/issue/KT-63921) K2: different representation of recursive type aliases - [`KT-68679`](https://youtrack.jetbrains.com/issue/KT-68679) K2: "Override has incorrect nullability in its signature compared to the overridden declaration" caused by subclass of Android HashMap - [`KT-64335`](https://youtrack.jetbrains.com/issue/KT-64335) K2: improve rendering of captured types in diagnostic messages - [`KT-68820`](https://youtrack.jetbrains.com/issue/KT-68820) K2: "Unresolved reference" on calling function with "contract" name - [`KT-67933`](https://youtrack.jetbrains.com/issue/KT-67933) K2: no conversion between fun interfaces if target has `suspend` - [`KT-68230`](https://youtrack.jetbrains.com/issue/KT-68230) K2: FirMissingDependencyClassChecker: Not supported: ConeFlexibleType - [`KT-68531`](https://youtrack.jetbrains.com/issue/KT-68531) K2: False-negative error on assignment to enum entry - [`KT-68446`](https://youtrack.jetbrains.com/issue/KT-68446) K2: compile-time failure on smart-casted generic value used as a when-subject in a contains-check with range - [`KT-68678`](https://youtrack.jetbrains.com/issue/KT-68678) K2: Drop using `FirBuiltinSymbolProvider` while compiling JVM stdlib - [`KT-68382`](https://youtrack.jetbrains.com/issue/KT-68382) Get rid of context receivers in FirScript implementation - [`KT-68585`](https://youtrack.jetbrains.com/issue/KT-68585) Implement new rules for CFA about enum entries - [`KT-68110`](https://youtrack.jetbrains.com/issue/KT-68110) K2: "Java type mismatch" caused by spring.Nullable - [`KT-68613`](https://youtrack.jetbrains.com/issue/KT-68613) K2: False positive `CONFLICTING_PROJECTION` after fixing KT-67764 - [`KT-67764`](https://youtrack.jetbrains.com/issue/KT-67764) K2: False negative: Projection problem is not reported in `is` expression - [`KT-67887`](https://youtrack.jetbrains.com/issue/KT-67887) Expection on assigning to private field of value type - [`KT-67801`](https://youtrack.jetbrains.com/issue/KT-67801) NSME on evaluating private member function with value class parameter - [`KT-67800`](https://youtrack.jetbrains.com/issue/KT-67800) NSME on evaluating private top-level function with value class parameter - [`KT-68542`](https://youtrack.jetbrains.com/issue/KT-68542) K2: Fix referecing to `@ExtensionFunctionType` if it's declared in source - [`KT-68188`](https://youtrack.jetbrains.com/issue/KT-68188) K2: Properly support FunctionN creation for stdlib compilation - [`KT-67946`](https://youtrack.jetbrains.com/issue/KT-67946) K2: Crash on red code: `Instead use FirErrorTypeRef for ERROR CLASS: Cannot infer argument for type parameter T` - [`KT-68526`](https://youtrack.jetbrains.com/issue/KT-68526) K2: false-negative inconsistent data class copy visibility warning on call to generic data class copy function - [`KT-68528`](https://youtrack.jetbrains.com/issue/KT-68528) K2: false-positive inconsistent data class copy visibility warning on call to function from another module with identical value parameter types and return type - [`KT-68525`](https://youtrack.jetbrains.com/issue/KT-68525) K2: false-negative inconsistent data class copy visibility warning on callable reference to data class copy function - [`KT-68617`](https://youtrack.jetbrains.com/issue/KT-68617) K2: Secondary constructors in a sealed class have private visibility instead of protected in the generated IR - [`KT-63920`](https://youtrack.jetbrains.com/issue/KT-63920) K2: Private secondary sealed class constructor is private in metadata, but protected in K1 - [`KT-57996`](https://youtrack.jetbrains.com/issue/KT-57996) Usages of `Foo` `@Nullable` \[]`produce only warnings even with`-Xtype-enhancement-improvements-strict-mode -Xjspecify-annotations=strict\` - [`KT-68207`](https://youtrack.jetbrains.com/issue/KT-68207) K2: Investigate if losing ConeIntersectionType.upperBoundForApproximation during approximation leads to any issues - [`KT-64990`](https://youtrack.jetbrains.com/issue/KT-64990) K2: Remove usages of SymbolTable from FIR2IR - [`KT-67798`](https://youtrack.jetbrains.com/issue/KT-67798) NSME on assigning to private delegated property of value class - [`KT-68264`](https://youtrack.jetbrains.com/issue/KT-68264) K2: confusing INVISIBLE\_\* error when typealias is involved - [`KT-68529`](https://youtrack.jetbrains.com/issue/KT-68529) K2: false-negative redundant annotation warning on `@ExposedCopyVisibility` on data class with public constructor - [`KT-67943`](https://youtrack.jetbrains.com/issue/KT-67943) Approximation should not generate types with UPPER\_BOUND\_VIOLATION errors - [`KT-67503`](https://youtrack.jetbrains.com/issue/KT-67503) K2: False negative "Type Expected" when attempting to annotate a wildcard type argument - [`KT-68187`](https://youtrack.jetbrains.com/issue/KT-68187) K2: Create IrBuiltins in fir2ir only after IR actualization - [`KT-66443`](https://youtrack.jetbrains.com/issue/KT-66443) K2: ArrayIterationHandler doesn't work if UIntArray declared in sources - [`KT-68291`](https://youtrack.jetbrains.com/issue/KT-68291) K2 / Contracts: Non-existent invocation kind is suggested as a fix - [`KT-68209`](https://youtrack.jetbrains.com/issue/KT-68209) K2: Strange import suggestion when lambda body contains invalid code - [`KT-67368`](https://youtrack.jetbrains.com/issue/KT-67368) "NullPointerException: Parameter specified as non-null is null" local lambda creates new not-null checks with 2.0.0-Beta5 - [`KT-51433`](https://youtrack.jetbrains.com/issue/KT-51433) FE 1.0: implement warnings about label resolve changes - [`KT-66554`](https://youtrack.jetbrains.com/issue/KT-66554) K2. Drop FIR based fake-override generator from fir2ir - [`KT-64202`](https://youtrack.jetbrains.com/issue/KT-64202) K2: Drop old methods for calculation of overridden symbols for lazy declarations - [`KT-67895`](https://youtrack.jetbrains.com/issue/KT-67895) K2: Properly implement generation of fake-overrides for fields - [`KT-54496`](https://youtrack.jetbrains.com/issue/KT-54496) K2: `REDUNDANT_MODALITY_MODIFIER` diagnostic disregards compiler plugins - [`KT-63745`](https://youtrack.jetbrains.com/issue/KT-63745) K2: Approximation of DNN with nullability warning attribute leads to attribute incorrectly becoming not-null - [`KT-63362`](https://youtrack.jetbrains.com/issue/KT-63362) AbstractTypeApproximator fixes only first local type in hierarchy - [`KT-67769`](https://youtrack.jetbrains.com/issue/KT-67769) K2: "variable must be initialized" on unreachable access in constructor - [`KT-51195`](https://youtrack.jetbrains.com/issue/KT-51195) FIR IC: Incremental compilation fails with `@PublishedApi` property - [`KT-67966`](https://youtrack.jetbrains.com/issue/KT-67966) No JVM type annotation is generated on a class supertype - [`KT-46640`](https://youtrack.jetbrains.com/issue/KT-46640) Generate JVM type annotations on wildcard bounds - [`KT-67952`](https://youtrack.jetbrains.com/issue/KT-67952) Annotations on type parameters are not generated for parameters other than the first - [`KT-68012`](https://youtrack.jetbrains.com/issue/KT-68012) K2. No `'operator' modifier is required on 'component'` error in K2 - [`KT-61835`](https://youtrack.jetbrains.com/issue/KT-61835) K2: FirStubTypeTransformer receives unresolved expressions in builder inference session - [`KT-63596`](https://youtrack.jetbrains.com/issue/KT-63596) K1/K2: Different behavior for lambda with different return type - [`KT-67688`](https://youtrack.jetbrains.com/issue/KT-67688) K2: False positive CANNOT\_INFER\_PARAMETER\_TYPE for Unit constraint type variable - [`KT-62080`](https://youtrack.jetbrains.com/issue/KT-62080) False positive UNUSED\_VARIABLE for variable that is used in lambda and in further code with several conditions - [`KT-60726`](https://youtrack.jetbrains.com/issue/KT-60726) K2: Missed TYPE\_MISMATCH error: inferred type non-suspend function but suspend function was expected - [`KT-41835`](https://youtrack.jetbrains.com/issue/KT-41835) \[FIR] Green code turns to red in presence of smartcasts and redundant type arguments - [`KT-67579`](https://youtrack.jetbrains.com/issue/KT-67579) K1/JVM: false-negative annotation-based diagnostics on usages of ABI compiled with non-trivially configured generation of default methods - [`KT-67493`](https://youtrack.jetbrains.com/issue/KT-67493) K2: argument type mismatch: actual type is 'T', but 'T' was expected - [`KT-64900`](https://youtrack.jetbrains.com/issue/KT-64900) K2: `getConstructorKeyword` call in `PsiRawFirBuilder.toFirConstructor` forces AST load - [`KT-67648`](https://youtrack.jetbrains.com/issue/KT-67648) K2: wrong exposed visibility errors with WRONG\_MODIFIER\_CONTAINING\_DECLARATION on top-level enum class - [`KT-58686`](https://youtrack.jetbrains.com/issue/KT-58686) FIR2IR: Don't use global counters - [`KT-67592`](https://youtrack.jetbrains.com/issue/KT-67592) K2: Success execution of `:kotlin-stdlib:compileKotlinMetadata` - [`KT-60398`](https://youtrack.jetbrains.com/issue/KT-60398) K2: consider forbidding FirBasedSymbol rebind - [`KT-54918`](https://youtrack.jetbrains.com/issue/KT-54918) Refactor transformAnonymousFunctionWithExpectedType - [`KT-63360`](https://youtrack.jetbrains.com/issue/KT-63360) K2: Malformed type mismatch error with functional type - [`KT-67266`](https://youtrack.jetbrains.com/issue/KT-67266) K2: disappeared INLINE\_CLASS\_DEPRECATED - [`KT-67569`](https://youtrack.jetbrains.com/issue/KT-67569) K2: Fix default value parameters of Enum's constructor if it's declared in source code - [`KT-67378`](https://youtrack.jetbrains.com/issue/KT-67378) K2: Don't use `wrapScopeWithJvmMapped` for common source sets - [`KT-67738`](https://youtrack.jetbrains.com/issue/KT-67738) K2: Introduce `kotlin.internal.ActualizeByJvmBuiltinProvider` annotation - [`KT-64456`](https://youtrack.jetbrains.com/issue/KT-64456) K2: Port \*VersionRequirementTest to K2 - [`KT-67136`](https://youtrack.jetbrains.com/issue/KT-67136) Put $this parameter to LVT for suspend lambdas - [`KT-62538`](https://youtrack.jetbrains.com/issue/KT-62538) K2: Declarations inside external classes should be implicitly external - [`KT-67627`](https://youtrack.jetbrains.com/issue/KT-67627) K2: External interface companion isn't external in IR - [`KT-60290`](https://youtrack.jetbrains.com/issue/KT-60290) K2: origin is not set for !in operator - [`KT-67512`](https://youtrack.jetbrains.com/issue/KT-67512) K2: false positive WRONG\_GETTER\_RETURN\_TYPE when getter return type is annotated - [`KT-67635`](https://youtrack.jetbrains.com/issue/KT-67635) K2: No warning TYPE\_MISMATCH\_WHEN\_FLEXIBILITY\_CHANGES for SAM constructor with inferred type - [`KT-60501`](https://youtrack.jetbrains.com/issue/KT-60501) K2 Scripting: investigate metadata difference between K1 and K2 - [`KT-67598`](https://youtrack.jetbrains.com/issue/KT-67598) K2: Fix incorrect casting `UByte` to `Number` in `FirToConstantValueTransformer` - [`KT-56564`](https://youtrack.jetbrains.com/issue/KT-56564) False positive "non-exhaustive when" in case of intersection type - [`KT-63969`](https://youtrack.jetbrains.com/issue/KT-63969) K2: extra property in metadata - [`KT-63968`](https://youtrack.jetbrains.com/issue/KT-63968) K2: extra property in metadata for anonymous variable in script - [`KT-67547`](https://youtrack.jetbrains.com/issue/KT-67547) K/N can't build caches, fails with "clang++: error=2, No such file or directory" - [`KT-67469`](https://youtrack.jetbrains.com/issue/KT-67469) K2: Failing module in FP-intellij - [`KT-64033`](https://youtrack.jetbrains.com/issue/KT-64033) K2: Investigate ForbidInferringPostponedTypeVariableIntoDeclaredUpperBound - [`KT-64457`](https://youtrack.jetbrains.com/issue/KT-64457) K2: Fix DecompiledKnmStubConsistencyK2TestGenerated - [`KT-66377`](https://youtrack.jetbrains.com/issue/KT-66377) IR Evaluator: "no container found for type parameter" when evaluating nested generics - [`KT-66378`](https://youtrack.jetbrains.com/issue/KT-66378) IR Evaluator: Symbol is unbound - [`KT-64506`](https://youtrack.jetbrains.com/issue/KT-64506) IDE, IR Evaluator: NPE in ReflectiveAccessLowering.fieldLocationAndReceiver when evaluating private static properties - [`KT-67380`](https://youtrack.jetbrains.com/issue/KT-67380) K2: Don't check for `equals` overriding for class `Any` - [`KT-67038`](https://youtrack.jetbrains.com/issue/KT-67038) K2: Missing type of FirLiteralExpression causes an exception for property initializer type resolution - [`KT-59813`](https://youtrack.jetbrains.com/issue/KT-59813) K2: Fix the TODO about `firEffect.source` in `FirReturnsImpliesAnalyzer` - [`KT-59834`](https://youtrack.jetbrains.com/issue/KT-59834) K2: Fix the TODO about `merge(other)` in `UnusedChecker` - [`KT-59188`](https://youtrack.jetbrains.com/issue/KT-59188) K2: Change positioning strategy for `WRONG_NUMBER_OF_TYPE_ARGUMENTS` error - [`KT-59108`](https://youtrack.jetbrains.com/issue/KT-59108) K2. SMARTCAST\_IMPOSSIBLE instead of UNSAFE\_IMPLICIT\_INVOKE\_CALL - [`KT-65503`](https://youtrack.jetbrains.com/issue/KT-65503) The inline processor cannot handle objects inside the lambda correctly when calling an inline function from another module - [`KT-30696`](https://youtrack.jetbrains.com/issue/KT-30696) NoSuchMethodError if nested anonymous objects are used with propagation reified type parameter - [`KT-58966`](https://youtrack.jetbrains.com/issue/KT-58966) Incorrect type inference for parameters with omitted type of anonymous function that is being analyzed as value of function type with receiver - [`KT-67458`](https://youtrack.jetbrains.com/issue/KT-67458) Use `@PhaseDescription` for JVM backend lowering phases - [`KT-65647`](https://youtrack.jetbrains.com/issue/KT-65647) K2 ignores diagnostics on sourceless `FirTypeRef`s - [`KT-64489`](https://youtrack.jetbrains.com/issue/KT-64489) K2: Rename FirAugmentedArraySet - [`KT-67394`](https://youtrack.jetbrains.com/issue/KT-67394) FIR: Make FIR repr of For from PSI and LightTree the same - [`KT-66724`](https://youtrack.jetbrains.com/issue/KT-66724) K2 IDE. False positive errors because of wrong type inference in complex case of delegated property and type arguments - [`KT-40248`](https://youtrack.jetbrains.com/issue/KT-40248) Confusing error message NO\_RETURN\_IN\_FUNCTION\_WITH\_BLOCK\_BODY - [`KT-66947`](https://youtrack.jetbrains.com/issue/KT-66947) K2: false-positive JSpecify nullability enhancement warning on Java wildcard type argument with same base type but different nullabilities as upper and lower bounds - [`KT-66974`](https://youtrack.jetbrains.com/issue/KT-66974) K2: false-negative JSpecify nullability enhancement warning on nullable projection of Java wildcard type argument with non-null bounds in out-position - [`KT-66946`](https://youtrack.jetbrains.com/issue/KT-66946) K2: false-negative JSpecify nullability enhancement warning on Java wildcard type argument with nullable upper bound in out-position - [`KT-66442`](https://youtrack.jetbrains.com/issue/KT-66442) K2: No visibility error on importing private aliases - [`KT-66598`](https://youtrack.jetbrains.com/issue/KT-66598) K2: Allow comparisons, `is`-checks and casts between Kotlin and platform types - [`KT-55966`](https://youtrack.jetbrains.com/issue/KT-55966) K2: Not enough information to infer type variable K if smartcast is used - [`KT-64894`](https://youtrack.jetbrains.com/issue/KT-64894) OPT\_IN\_ARGUMENT\_IS\_NOT\_MARKER diagnostic message is unclear - [`KT-67019`](https://youtrack.jetbrains.com/issue/KT-67019) K2: IR has incorrect EQ origins for some inplace updating operators - [`KT-59810`](https://youtrack.jetbrains.com/issue/KT-59810) K2: Support other ConstraintPosition-s - [`KT-55383`](https://youtrack.jetbrains.com/issue/KT-55383) K1/K2: isClassTypeConstructor behaves differently for stub types - [`KT-60089`](https://youtrack.jetbrains.com/issue/KT-60089) K2: Introduced ERROR\_IN\_CONTRACT\_DESCRIPTION - [`KT-60382`](https://youtrack.jetbrains.com/issue/KT-60382) K2: Refactor ExpectActualCollector - [`KT-62929`](https://youtrack.jetbrains.com/issue/KT-62929) K2: investigate if guessArrayTypeIfNeeded is necessary in annotation loader - [`KT-65642`](https://youtrack.jetbrains.com/issue/KT-65642) K2: IR: Array access desugaring doesn't have origins - [`KT-24807`](https://youtrack.jetbrains.com/issue/KT-24807) No smartcast to Boolean in subject of when-expression when subject type is non-nullable - [`KT-66057`](https://youtrack.jetbrains.com/issue/KT-66057) K2: incorrect supertype leads to class declaration being highlighted red - [`KT-63958`](https://youtrack.jetbrains.com/issue/KT-63958) K2: drop support of UseBuilderInferenceOnlyIfNeeded=false - [`KT-63959`](https://youtrack.jetbrains.com/issue/KT-63959) K2: treat stub types as non-nullable for isReceiverNullable check - [`KT-65100`](https://youtrack.jetbrains.com/issue/KT-65100) IrFakeOverrideBuilder: support custom 'remove(Int)' handling logic in MutableCollection subclasses ##### Compose compiler ##### New features - [`cdfe659`](https://github.com/JetBrains/kotlin/commit/cdfe65911490eef21892098494986af1af14fa64) Changed how compiler features being rolled out are enabled and disabled in compiler plugin CLI. Features, such as strong skipping and non-skipping group optimizations are now enabled through the "featureFlag" option instead of their own option. - [`192e556`](https://github.com/JetBrains/kotlin/commit/192e5565f484b399b33ed9e959793922f0aeb3d0) Strong skipping is now enabled by default - [`842a9e8`](https://github.com/JetBrains/kotlin/commit/842a9e87e3c1e1d219313caedcc9e9fae895e53f) Add support for default parameters in abstract and open `@Composable` functions [`b/165812010`](https://issuetracker.google.com/issues/165812010) ##### Fixes - [`e207b05`](https://github.com/JetBrains/kotlin/commit/e207b05f1fcbba38b71030be0fc30b378e9b5308) Fixes group generation for if statements when nonSkippingGroupOptimization is enabled [`b/346821372`](https://issuetracker.google.com/issues/346821372) - [`f64fc3a`](https://github.com/JetBrains/kotlin/commit/f64fc3ae5f9be6f2a066b3b9350f830bdd4e854c) Fixes `endToMarker` generation in early return from inline lambdas that caused start/end imbalance [`b/346808602`](https://issuetracker.google.com/issues/346808602) - [`d6ac8a5`](https://github.com/JetBrains/kotlin/commit/d6ac8a50a4eb4ce1c6464cb5103d2d9b04f67019) Stop memoizing lambdas with captured property delegates [`b/342557697`](https://issuetracker.google.com/issues/342557697) - [`f38d5a3`](https://github.com/JetBrains/kotlin/commit/f38d5a3c047edb3b38eb0eaebcdcedc2aa1c04d8) Stop capturing parameter meta across crossinline boundary [`b/343801379`](https://issuetracker.google.com/issues/343801379) - [`770fe8d`](https://github.com/JetBrains/kotlin/commit/770fe8dda6a8a801b47cb84f5026f93555c4b452) Propagate annotations from inferred function types when serializing [`b/345261077`](https://issuetracker.google.com/issues/345261077) - [`3c67cda`](https://github.com/JetBrains/kotlin/commit/3c67cda09099f9acdd10b944183a75958e023141) Fix memoization of captureless lambdas when K2 compiler is used [`b/340582180`](https://issuetracker.google.com/issues/340582180) - [`3281e53`](https://github.com/JetBrains/kotlin/commit/3281e53a1bb15af932157d42178184aed55e6d71) Allow memoizing lambdas in composable inline functions [`b/340606661`](https://issuetracker.google.com/issues/340606661) - [`b/351858979`](https://issuetracker.google.com/issues/351858979) Fix stability inferencing of interfaces on incremental compilation - [`b/346821372`](https://issuetracker.google.com/issues/346821372) \[Compose] Fix code generation for group optimization - [`b/357878245`](https://issuetracker.google.com/issues/357878245) Disallow open `@Composable` functions with default params to fix binary compatibility issues. ##### IR. Actualizer - [`KT-68830`](https://youtrack.jetbrains.com/issue/KT-68830) Compiler crash on missing actual class - [`KT-69024`](https://youtrack.jetbrains.com/issue/KT-69024) K2: Children of expect annotation with `@OptionalExpectation` should be actualized - [`KT-68742`](https://youtrack.jetbrains.com/issue/KT-68742) Allow expect protected to Java protected actualization - [`KT-66436`](https://youtrack.jetbrains.com/issue/KT-66436) K2. Actualizing modCount property with a field in AbstractMutableList - [`KT-68741`](https://youtrack.jetbrains.com/issue/KT-68741) Support actualization of AbstractMutableList.modCount - [`KT-68801`](https://youtrack.jetbrains.com/issue/KT-68801) Crash on access of fake override of function actualized by fake override - [`KT-66307`](https://youtrack.jetbrains.com/issue/KT-66307) K2: property fake override isn't generated for protected field ##### IR. Inlining - [`KT-67208`](https://youtrack.jetbrains.com/issue/KT-67208) KJS: put ReplaceSuspendIntrinsicLowering after IR inliner - [`KT-68100`](https://youtrack.jetbrains.com/issue/KT-68100) Run IR validation in the beginning and the end of the common prefix - [`KT-69171`](https://youtrack.jetbrains.com/issue/KT-69171) Introduce a temporary `-X` CLI parameter that enables double-inlining - [`KT-69006`](https://youtrack.jetbrains.com/issue/KT-69006) Enable IR visibility checks after IR inlining - [`KT-69183`](https://youtrack.jetbrains.com/issue/KT-69183) IR inlining: properly handle defaults that depends on previous value parameters - [`KT-67660`](https://youtrack.jetbrains.com/issue/KT-67660) Suspicious package part FQN calculation in InventNamesForLocalClasses - [`KT-68558`](https://youtrack.jetbrains.com/issue/KT-68558) Move `InlineCallableReferenceToLambdaPhase` into `ir.inline` module - [`KT-56466`](https://youtrack.jetbrains.com/issue/KT-56466) Support non-local break/continue in IR inliner - [`KT-64958`](https://youtrack.jetbrains.com/issue/KT-64958) KJS: Put as many as possible lowerings after the inliner - [`KT-67297`](https://youtrack.jetbrains.com/issue/KT-67297) Implement IR deserializer with unbound symbols ##### IR. Interpreter - [`KT-66938`](https://youtrack.jetbrains.com/issue/KT-66938) Internal error in file lowering: java.lang.AssertionError: Error occurred while optimizing an expression: CALL 'public final fun less (arg0: kotlin.Int, arg1: kotlin.Int): kotlin.Boolean declared in kotlin.internal.ir' ##### IR. Tree ##### Performance Improvements - [`KT-67695`](https://youtrack.jetbrains.com/issue/KT-67695) ForLoopsLowering fails to handle a loop over an imprecise typed iterable ##### Fixes - [`KT-68784`](https://youtrack.jetbrains.com/issue/KT-68784) Support validating visibility of referenced declarations in IrValidator - [`KT-68174`](https://youtrack.jetbrains.com/issue/KT-68174) Delete the IrMessageLogger interface - [`KT-67082`](https://youtrack.jetbrains.com/issue/KT-67082) Introduce attributes on IrElement - [`KT-68716`](https://youtrack.jetbrains.com/issue/KT-68716) `DeepCopyIrTreeWithSymbols.visitConst` should remap const type - [`KT-67650`](https://youtrack.jetbrains.com/issue/KT-67650) Add default implementations to methods for non-leaf IrSymbol subclasses from SymbolRemapper - [`KT-67649`](https://youtrack.jetbrains.com/issue/KT-67649) Autogenerate IrSymbol interface hierarchy - [`KT-44721`](https://youtrack.jetbrains.com/issue/KT-44721) IR: merge IrPrivateSymbolBase and IrPublicSymbolBase hierarchies - [`KT-67580`](https://youtrack.jetbrains.com/issue/KT-67580) Autogenerate SymbolRemapper - [`KT-67457`](https://youtrack.jetbrains.com/issue/KT-67457) Introduce a way to simplify IR lowering phase creation - [`KT-67060`](https://youtrack.jetbrains.com/issue/KT-67060) NoSuchMethodError for org.jetbrains.kotlin.ir.expressions.impl.IrCompositeImpl in the Flysto ##### JavaScript ##### New Features - [`KT-69133`](https://youtrack.jetbrains.com/issue/KT-69133) Kotlin/JS: Add support for collection instantiation in JavaScript - [`KT-18891`](https://youtrack.jetbrains.com/issue/KT-18891) JS: provide a way to declare static members (JsStatic?) ##### Fixes - [`KT-68943`](https://youtrack.jetbrains.com/issue/KT-68943) `@JsPlainObject` breaks when interface has type parameters - [`KT-70592`](https://youtrack.jetbrains.com/issue/KT-70592) "Error: HttpClientCall expected" on HTTP request when targeting es2015 with KTOR - [`KT-67273`](https://youtrack.jetbrains.com/issue/KT-67273) Creating Kotlin Collections from JS collections - [`KT-65018`](https://youtrack.jetbrains.com/issue/KT-65018) JS: Deprecate error tolerance - [`KT-67355`](https://youtrack.jetbrains.com/issue/KT-67355) KJS / ES6: 'super' in lambda with enabled `-Xir-generate-inline-anonymous-functions` leads to JS errors - [`KT-69353`](https://youtrack.jetbrains.com/issue/KT-69353) KJS / d.ts: Kotlin does not export base collection classes along with their mutable collection counterparts - [`KT-66898`](https://youtrack.jetbrains.com/issue/KT-66898) KJS: Reserved keywords not escaped when `-Xir-generate-inline-anonymous-functions` is enabled - [`KT-69710`](https://youtrack.jetbrains.com/issue/KT-69710) JS IR generates bad code for inner param default referring to outer members - [`KT-68632`](https://youtrack.jetbrains.com/issue/KT-68632) K2: allow JS\_NAME\_CLASH suppression - [`KT-69400`](https://youtrack.jetbrains.com/issue/KT-69400) Use correct type for references on local functions when transforming them into lambda - [`KT-68554`](https://youtrack.jetbrains.com/issue/KT-68554) Legalize marker interface as parent for JSO (interface marked with `@JsPlainObject`) - [`KT-68740`](https://youtrack.jetbrains.com/issue/KT-68740) Kotlin/JS 2.0.0 IrLinkageError with dynamic function parameters inside data classes - [`KT-68944`](https://youtrack.jetbrains.com/issue/KT-68944) `@JsPlainObject` require properties, when type - nullable alias - [`KT-68891`](https://youtrack.jetbrains.com/issue/KT-68891) `@JsPlainObject` fails to compile when encountering reserved keywords as interface properties - [`KT-69023`](https://youtrack.jetbrains.com/issue/KT-69023) KJS / IR: `globalThis` is mandatory, breaking older browsers support - [`KT-68641`](https://youtrack.jetbrains.com/issue/KT-68641) KJS: 'export was not found' with per-file mode on case-insensitive filesystem - [`KT-68053`](https://youtrack.jetbrains.com/issue/KT-68053) K2: NON\_EXPORTABLE\_TYPE on a typealias of primitive type - [`KT-62304`](https://youtrack.jetbrains.com/issue/KT-62304) K/JS: Investigate the compiler assertion crash in JS FIR with backend tests - [`KT-68620`](https://youtrack.jetbrains.com/issue/KT-68620) \[wasm]\[js] Default param in inner class method fails if we are referring generic extension property - [`KT-64801`](https://youtrack.jetbrains.com/issue/KT-64801) K2 + JS and WASM: Inner with default inner doesn't work properly - [`KT-67248`](https://youtrack.jetbrains.com/issue/KT-67248) ModuleDescriptor in JS Linker contains incorrect friend dependecies - [`KT-64424`](https://youtrack.jetbrains.com/issue/KT-64424) K2: Migrate JsProtoComparisonTestGenerated to K2 - [`KT-52602`](https://youtrack.jetbrains.com/issue/KT-52602) Kotlin/JS + IR: incompatible ABI version is not reported when no declarations are actually used by a Gradle compilation - [`KT-66092`](https://youtrack.jetbrains.com/issue/KT-66092) K/JS & Wasm: .isReified for reified upper bound is wrongly false - [`KT-67112`](https://youtrack.jetbrains.com/issue/KT-67112) Unable to apply `@JsStatic` for common sources: \[NO\_CONSTRUCTOR] - [`KT-62329`](https://youtrack.jetbrains.com/issue/KT-62329) KJS: "UnsupportedOperationException: Empty collection can't be reduced" caused by external enum with "`@JsExport`" - [`KT-67018`](https://youtrack.jetbrains.com/issue/KT-67018) K/JS: Executable js file for module-kind=umd contains top level this instead of globalThis - [`KT-64776`](https://youtrack.jetbrains.com/issue/KT-64776) Test infra for JS can't process dependency in mpp module - [`KT-65076`](https://youtrack.jetbrains.com/issue/KT-65076) Use the same instance when a fun interface doesn't capture or capture only singletons ##### Klibs - [`KT-66557`](https://youtrack.jetbrains.com/issue/KT-66557) Check, that no bad metadata in klib is produced, when we failed to compute constant value - [`KT-66968`](https://youtrack.jetbrains.com/issue/KT-66968) Provide K/N platforms libs for all available targets - [`KT-66967`](https://youtrack.jetbrains.com/issue/KT-66967) Provide K/N stdlib for all available targets in all distributions - [`KT-66605`](https://youtrack.jetbrains.com/issue/KT-66605) \[KLIB] Excessive creation of `BaseKotlinLibrary` during resolving libs - [`KT-68824`](https://youtrack.jetbrains.com/issue/KT-68824) API 4 ABI: Don't show sealed class constructors - [`KT-68202`](https://youtrack.jetbrains.com/issue/KT-68202) KLIB metadata: nested classes are sometimes inside a different 'knm' chunk - [`KT-65834`](https://youtrack.jetbrains.com/issue/KT-65834) \[KLIB Resolve] Drop library versions in KLIB manifests - [`KT-67446`](https://youtrack.jetbrains.com/issue/KT-67446) \[KLIB Tool] Drop "-repository <path>" CLI parameter - [`KT-67445`](https://youtrack.jetbrains.com/issue/KT-67445) \[KLIB Tool] Drop "install" and "remove" commands ##### Language Design - [`KT-58920`](https://youtrack.jetbrains.com/issue/KT-58920) K2: Prioritize Enum.entries resolve - [`KT-11914`](https://youtrack.jetbrains.com/issue/KT-11914) Confusing data class copy with private constructor - [`KT-68636`](https://youtrack.jetbrains.com/issue/KT-68636) Incorrect private\_to\_this visibility for data class with a private constructor ##### Libraries ##### New Features - [`KT-31880`](https://youtrack.jetbrains.com/issue/KT-31880) UUID functionality to fix Java bugs as well as extend it - [`KT-57998`](https://youtrack.jetbrains.com/issue/KT-57998) implement Base64.withoutPadding ##### Performance Improvements - [`KT-67023`](https://youtrack.jetbrains.com/issue/KT-67023) Optimize Int.sign and Long.sign for js and wasmJs targets ##### Fixes - [`KT-70196`](https://youtrack.jetbrains.com/issue/KT-70196) Introduce ExperimentalUuidApi annotation for marking Uuid API - [`KT-60787`](https://youtrack.jetbrains.com/issue/KT-60787) Cannot ignore alpha when formatting with HexFormat - [`KT-68025`](https://youtrack.jetbrains.com/issue/KT-68025) Improve documentation for Hex - [`KT-66129`](https://youtrack.jetbrains.com/issue/KT-66129) Minor issues with HexFormat - [`KT-67511`](https://youtrack.jetbrains.com/issue/KT-67511) provide equals() and hashCode() implementations for kotlinx.metadata.KmType - [`KT-68240`](https://youtrack.jetbrains.com/issue/KT-68240) stdlib: proper expects for internal API used in intermediate shared source sets - [`KT-68840`](https://youtrack.jetbrains.com/issue/KT-68840) atomicfu-runtime: annotate some internal functions with `@PublishedApi` - [`KT-68839`](https://youtrack.jetbrains.com/issue/KT-68839) Annotate `kotlin.js.VOID` property with `@PublishedApi` - [`KT-68023`](https://youtrack.jetbrains.com/issue/KT-68023) Improve documentation for Base64 - [`KT-51483`](https://youtrack.jetbrains.com/issue/KT-51483) Documentation of trimMargin is (partly) difficult to understand - [`KT-64649`](https://youtrack.jetbrains.com/issue/KT-64649) Add explanation to "A compileOnly dependency is used in the Kotlin/Native target" warning message - [`KT-67807`](https://youtrack.jetbrains.com/issue/KT-67807) JS/Wasm: ByteArray.decodeToString incorrectly handles ill-formed 4-byte sequences with a 2nd byte not being continuation byte - [`KT-67768`](https://youtrack.jetbrains.com/issue/KT-67768) Wasm: ByteArray.decodeToString throws out-of-bounds exception if the last byte is a start of a 4-byte sequence - [`KT-66896`](https://youtrack.jetbrains.com/issue/KT-66896) Improve Array contentEquals and contentDeepEquals documentation ##### Native - [`KT-70166`](https://youtrack.jetbrains.com/issue/KT-70166) Native: EXC\_BAD\_ACCESS on watchOS when using Dispatchers - [`KT-69246`](https://youtrack.jetbrains.com/issue/KT-69246) K2: linkPodDebugFrameworkIosArm64 takes 15 (!!) times longer - [`KT-67694`](https://youtrack.jetbrains.com/issue/KT-67694) Native: WeakRefBenchmark degradation due to nonoptimized IntProgression iteration - [`KT-69206`](https://youtrack.jetbrains.com/issue/KT-69206) Native: updating to LLVM 16 breaks debugging in lldb on Linux - [`KT-68640`](https://youtrack.jetbrains.com/issue/KT-68640) Native: updating to LLVM 16 changes behavior of `used` attribute in C/C++ code - [`KT-58097`](https://youtrack.jetbrains.com/issue/KT-58097) Kotlin/Native: improve the error message if Xcode is not properly configured - [`KT-67583`](https://youtrack.jetbrains.com/issue/KT-67583) compileKotlin-task unexpectedly downloads K/N dependencies on Linux (but doesn't on Mac) ##### Native. Build Infrastructure - [`KT-69781`](https://youtrack.jetbrains.com/issue/KT-69781) Kotlin/Native performance tests fail to compile with bitcode ##### Native. C and ObjC Import - [`KT-69094`](https://youtrack.jetbrains.com/issue/KT-69094) LLVM 11 clang: cinterops fail with "\_Float16 is not supported on this target" - [`KT-68254`](https://youtrack.jetbrains.com/issue/KT-68254) Native: flaky testForwardEnum test in Kotlin/Native on MacOS - [`KT-65260`](https://youtrack.jetbrains.com/issue/KT-65260) Native: compiler crashes when casting to an Obj-C class companion ##### Native. ObjC Export - [`KT-65666`](https://youtrack.jetbrains.com/issue/KT-65666) Native: enable objcExportSuspendFunctionLaunchThreadRestriction=none by default - [`KT-57496`](https://youtrack.jetbrains.com/issue/KT-57496) linkReleaseFrameworkIosArm64: e: Compilation failed: An operation is not implemented ##### Native. Platform Libraries - [`KT-69382`](https://youtrack.jetbrains.com/issue/KT-69382) LLVM 11 clang: symbol not found when running the linker ##### Native. Runtime - [`KT-70043`](https://youtrack.jetbrains.com/issue/KT-70043) Native: EXC\_BAD\_ACCESS on watchOS when using Random - [`KT-68928`](https://youtrack.jetbrains.com/issue/KT-68928) EXC\_BREAKPOINT: BUG IN CLIENT OF LIBPLATFORM: Trying to recursively lock an os\_unfair\_lock ##### Native. Runtime. Memory - [`KT-66644`](https://youtrack.jetbrains.com/issue/KT-66644) Native: threads are too often paused to assist GC (with concurrent mark) - [`KT-68871`](https://youtrack.jetbrains.com/issue/KT-68871) Native: Unexpected barriers phase during STW: weak-processing - [`KT-67779`](https://youtrack.jetbrains.com/issue/KT-67779) Native: SpecialRefRegistry::ThradData publication prolongs the pause in CMS - [`KT-66918`](https://youtrack.jetbrains.com/issue/KT-66918) Native: scan global root set concurrently ##### Native. Swift Export - [`KT-69469`](https://youtrack.jetbrains.com/issue/KT-69469) Exporting object twice causing crash - [`KT-69251`](https://youtrack.jetbrains.com/issue/KT-69251) Get rid of context receivers from ./native/.../lazyWithSessions.kt - [`KT-68865`](https://youtrack.jetbrains.com/issue/KT-68865) Move config into test-directives - [`KT-68259`](https://youtrack.jetbrains.com/issue/KT-68259) Swift export: secondary constructs lead to compilation errors - [`KT-67095`](https://youtrack.jetbrains.com/issue/KT-67095) Native: fix testNativeRefs export test - [`KT-67099`](https://youtrack.jetbrains.com/issue/KT-67099) Remove SirVisitor and SirTransformer from code - [`KT-67003`](https://youtrack.jetbrains.com/issue/KT-67003) Abandon PackageInflator implementation in favour of PackageProvider component ##### Native. Testing - [`KT-69235`](https://youtrack.jetbrains.com/issue/KT-69235) Incorrect handling of friend dependencies in Native test infra - [`KT-67436`](https://youtrack.jetbrains.com/issue/KT-67436) Native: support CLI tests - [`KT-68416`](https://youtrack.jetbrains.com/issue/KT-68416) Native: when using test grouping, a whole group gets ignored on non-Mac hosts if it has Objective-C tests - [`KT-68500`](https://youtrack.jetbrains.com/issue/KT-68500) Native: Drop custom logic in ExtTestCaseGroupProvider, mute codegen/box tests explicitly ##### Reflection - [`KT-69433`](https://youtrack.jetbrains.com/issue/KT-69433) KotlinReflectionInternalError on non-reified type parameter in typeOf inside an inline lambda - [`KT-68675`](https://youtrack.jetbrains.com/issue/KT-68675) K2: KotlinReflectionInternalError on non-reified type parameter in typeOf inside a lambda ##### Tools. Build Tools API - [`KT-68555`](https://youtrack.jetbrains.com/issue/KT-68555) BTA test infra: top level declarations are invisible across modules ##### Tools. CLI - [`KT-69792`](https://youtrack.jetbrains.com/issue/KT-69792) Add the possibility to disable fast jar fs in K2 - [`KT-68838`](https://youtrack.jetbrains.com/issue/KT-68838) OutOfMemory when compiling in CLI - [`KT-67939`](https://youtrack.jetbrains.com/issue/KT-67939) Add CLI argument to enable when guards feature - [`KT-68743`](https://youtrack.jetbrains.com/issue/KT-68743) Extract common CLI arguments for all KLIB-based backends - [`KT-68450`](https://youtrack.jetbrains.com/issue/KT-68450) CLI: errors related to module-info are reported even if there are no Kotlin source files - [`KT-68060`](https://youtrack.jetbrains.com/issue/KT-68060) FastJarFS fails on empty jars ##### Tools. CLI. Native - [`KT-66952`](https://youtrack.jetbrains.com/issue/KT-66952) Native: konanc fails when KONAN\_HOME is under path with spaces - [`KT-64524`](https://youtrack.jetbrains.com/issue/KT-64524) Introduce a CLI argument to override native\_targets field in klib manifest ##### Tools. Commonizer - [`KT-68835`](https://youtrack.jetbrains.com/issue/KT-68835) Command line length overflow on Linux/Windows while invoking commonizer via :commonizeDistribution ##### Tools. Compiler Plugin API - [`KT-68020`](https://youtrack.jetbrains.com/issue/KT-68020) K2: run FirSupertypeGenerationExtension over generated declarations ##### Tools. Compiler Plugins - [`KT-64425`](https://youtrack.jetbrains.com/issue/KT-64425) K2: Implement Atomicfu\*IrTestGenerated for K2 - [`KT-69401`](https://youtrack.jetbrains.com/issue/KT-69401) Kotlin power assert plugin doesn't work correctly with safe cast operator - [`KT-69290`](https://youtrack.jetbrains.com/issue/KT-69290) PowerAssert: implicit receivers included in power-assert generated diagram - [`KT-68511`](https://youtrack.jetbrains.com/issue/KT-68511) Power Assert kotlinx.assertEquals message display problem - [`KT-68807`](https://youtrack.jetbrains.com/issue/KT-68807) Power-Assert crashes the Kotlin compiler when if expression used as assertion parameter - [`KT-68162`](https://youtrack.jetbrains.com/issue/KT-68162) K2 Parcelize implementation breaks compiler phase contracts - [`KT-67605`](https://youtrack.jetbrains.com/issue/KT-67605) K2 parcelize: false positive NOTHING\_TO\_OVERRIDE in one test - [`KT-64455`](https://youtrack.jetbrains.com/issue/KT-64455) K2: Implement ParcelizeIrBoxTestWithSerializableLikeExtension for K2 ##### Tools. Compiler plugins. Serialization - [`KT-70516`](https://youtrack.jetbrains.com/issue/KT-70516) KxSerialization: `@KeepGeneratedSerializer` and sealed class cause initialization error - [`KT-68752`](https://youtrack.jetbrains.com/issue/KT-68752) Serializable annotation on Java class is not taken into account in K2 checker - [`KT-68931`](https://youtrack.jetbrains.com/issue/KT-68931) JS/Native + serialization: partial linkage error - [`KT-69039`](https://youtrack.jetbrains.com/issue/KT-69039) FIR: Implement IDE-only checker for kotlinx.serialization compiler plugin to report IDE-only diagnostics ##### Tools. Fleet. ObjC Export - [`KT-68826`](https://youtrack.jetbrains.com/issue/KT-68826) ObjCExport: SerializersModuleBuilder - [`KT-68841`](https://youtrack.jetbrains.com/issue/KT-68841) ObjCExport: `@Deprecated` support - [`KT-68887`](https://youtrack.jetbrains.com/issue/KT-68887) ObjCExport: K1 text fixture `@Deprecated` support - [`KT-68051`](https://youtrack.jetbrains.com/issue/KT-68051) \[ObjCExport] Support reserved method names ##### Tools. Gradle ##### New Features - [`KT-68651`](https://youtrack.jetbrains.com/issue/KT-68651) Compose: provide a single place in extension to configure all compose flags ##### Performance Improvements - [`KT-61861`](https://youtrack.jetbrains.com/issue/KT-61861) Gradle: Kotlin compilations depend on packed artifacts ##### Fixes - [`KT-69809`](https://youtrack.jetbrains.com/issue/KT-69809) Compose Gradle Plugin: AGP doesn't override configuration properties like traceMarkersEnabled - [`KT-65820`](https://youtrack.jetbrains.com/issue/KT-65820) Compatibility with Gradle 8.7 release - [`KT-69444`](https://youtrack.jetbrains.com/issue/KT-69444) Don't warn about missing Compose Compiler Gradle plugin in some cases - [`KT-67888`](https://youtrack.jetbrains.com/issue/KT-67888) Remove usages of deprecated Configuration.fileCollection() method - [`KT-68843`](https://youtrack.jetbrains.com/issue/KT-68843) Gradle: Kotlin plugin changes source set 'main' to 'null/main' - [`KT-67395`](https://youtrack.jetbrains.com/issue/KT-67395) Add new plugins to collector kotlin gradle performance - [`KT-68661`](https://youtrack.jetbrains.com/issue/KT-68661) Move ExperimentalWasmDsl to kotlin-gradle-plugin-annotations - [`KT-69837`](https://youtrack.jetbrains.com/issue/KT-69837) Deprecation warning for file-based IC is issued when the property is set to true, altering the intended meaning of the message - [`KT-69291`](https://youtrack.jetbrains.com/issue/KT-69291) Compose Gradle plugin: Enable strong skipping by default - [`KT-67766`](https://youtrack.jetbrains.com/issue/KT-67766) Build against Gradle API 8.7 - [`KT-67889`](https://youtrack.jetbrains.com/issue/KT-67889) Run tests against Gradle 8.8 release - [`KT-65271`](https://youtrack.jetbrains.com/issue/KT-65271) Gradle: "Mutating dependency DefaultExternalModuleDependency after it has been finalized has been deprecated " with gradle 8.6-rc-3 - [`KT-67822`](https://youtrack.jetbrains.com/issue/KT-67822) Deprecate JVM history files based incremental compilation - [`KT-64378`](https://youtrack.jetbrains.com/issue/KT-64378) Compatibility with Gradle 8.6 release - [`KT-69414`](https://youtrack.jetbrains.com/issue/KT-69414) Compose: featureFlags override values of the deprecated compose options - [`KT-67771`](https://youtrack.jetbrains.com/issue/KT-67771) Compatibility with Gradle 8.8 release - [`KT-65528`](https://youtrack.jetbrains.com/issue/KT-65528) Migrate rest of Gradle integration tests to new Test DSL - [`KT-68306`](https://youtrack.jetbrains.com/issue/KT-68306) Project isolation for FUS statistics: Cannot access project ':' from project ':app' at org.jetbrains.kotlin.gradle.report.BuildMetricsService$ Companion.initBuildScanExtensionHolder - [`KT-67890`](https://youtrack.jetbrains.com/issue/KT-67890) Compile against Gradle 8.8 API artifact - [`KT-68773`](https://youtrack.jetbrains.com/issue/KT-68773) Kotlin 2.0.0 with Gradle 8.8: ConcurrentModificationException on BuildFusService configurationMetrics - [`KT-68308`](https://youtrack.jetbrains.com/issue/KT-68308) Project isolation for FUS statistics: An error is thrown at org.gradle.configurationcache.ProblemReportingCrossProjectModelAccess$ProblemReportingProject.getLayout - [`KT-61574`](https://youtrack.jetbrains.com/issue/KT-61574) Add project-isolation test for Kotlin/Android plugin - [`KT-65936`](https://youtrack.jetbrains.com/issue/KT-65936) Provide a detailed error for changing kotlin native version dependency. - [`KT-62684`](https://youtrack.jetbrains.com/issue/KT-62684) PropertiesBuildService should load extraProperties only once - [`KT-67288`](https://youtrack.jetbrains.com/issue/KT-67288) Test DSL should not fail the test if build scan publishing has failed - [`KT-58280`](https://youtrack.jetbrains.com/issue/KT-58280) org.jetbrains.kotlin.jvm Gradle plugin contributes build directories to the test compile classpath ##### Tools. Gradle. JS - [`KT-70077`](https://youtrack.jetbrains.com/issue/KT-70077) \[2.0.20-Beta2] KGP reports confusing warnings about js/wasmJS source sets - [`KT-69805`](https://youtrack.jetbrains.com/issue/KT-69805) YarnSetupTask does not work for custom downloadBaseUrl - [`KT-67444`](https://youtrack.jetbrains.com/issue/KT-67444) Gradle / JS: wrong type commonWebpackConfig.devServer.proxy - [`KT-42923`](https://youtrack.jetbrains.com/issue/KT-42923) KJS: Resources are not available when running Karma tests - [`KT-68482`](https://youtrack.jetbrains.com/issue/KT-68482) KotlinNpmInstallTask is not compatible with configuration cache - [`KT-68072`](https://youtrack.jetbrains.com/issue/KT-68072) K/JS, K/Wasm: Module not found in transitive case - [`KT-68103`](https://youtrack.jetbrains.com/issue/KT-68103) K/JS, K/Wasm: Generation of test compilation's package.json requires main compilation - [`KT-67924`](https://youtrack.jetbrains.com/issue/KT-67924) K/JS, K/Wasm: kotlinNpmInstall can rewrite root package.json ##### Tools. Gradle. Kapt - [`KT-64627`](https://youtrack.jetbrains.com/issue/KT-64627) Kapt3KotlinGradleSubplugin uses property lookup that breaks project isolation - [`KT-61928`](https://youtrack.jetbrains.com/issue/KT-61928) Clarify parameter types in KaptArguments and KaptJavacOption ##### Tools. Gradle. Multiplatform ##### New Features - [`KT-56566`](https://youtrack.jetbrains.com/issue/KT-56566) Consider pre-generating DSL accessors for source sets with names corresponding to the default target hierarchy ##### Fixes - [`KT-66568`](https://youtrack.jetbrains.com/issue/KT-66568) w: KLIB resolver: The same 'unique\_name=...' found in more than one library - [`KT-65754`](https://youtrack.jetbrains.com/issue/KT-65754) Gradle: Commonized cinterop dependency configuration changes project description - [`KT-69406`](https://youtrack.jetbrains.com/issue/KT-69406) Deprecate combinations of KMP plugin with some Gradle Java plugins - [`KT-64109`](https://youtrack.jetbrains.com/issue/KT-64109) Using compileOnly/runtimeOnly dependencies in K/N-related configurations leads to odd behaviour - [`KT-69311`](https://youtrack.jetbrains.com/issue/KT-69311) runDebugExecutable task fails with "this.compilation" is null with enabled configuration cache - [`KT-69310`](https://youtrack.jetbrains.com/issue/KT-69310) w: KLIB resolver: The same 'unique\_name=...' found in more than one library for diamond source set structures - [`KT-61793`](https://youtrack.jetbrains.com/issue/KT-61793) KMP/AGP compatibility: Update the maximum tested AGP version to 8.3 - [`KT-66209`](https://youtrack.jetbrains.com/issue/KT-66209) Accessing the source sets by name is confusing - [`KT-62368`](https://youtrack.jetbrains.com/issue/KT-62368) Kotlin 1.9.X fails to detect kotlin.test.Test annotation reference on commonTest source set when targeting JVM+Android - [`KT-67110`](https://youtrack.jetbrains.com/issue/KT-67110) Usage of BuildOperationExecutor.getCurrentOpeartion internal Gradle API - [`KT-58319`](https://youtrack.jetbrains.com/issue/KT-58319) kotlin.git: ProjectMetadataProviderImpl "Unexpected source set 'commonMain'" ##### Tools. Gradle. Native - [`KT-69918`](https://youtrack.jetbrains.com/issue/KT-69918) java.lang.NullPointerException: Cannot invoke "org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeCompilation.getTarget()" because "this.compilation" is null - [`KT-67935`](https://youtrack.jetbrains.com/issue/KT-67935) OverriddenKotlinNativeHomeChecker does not work well with relative paths - [`KT-64430`](https://youtrack.jetbrains.com/issue/KT-64430) Remove deprecated KotlinToolRunner(project) constructor - [`KT-64427`](https://youtrack.jetbrains.com/issue/KT-64427) Stop using deprecated KotlinToolRunner(project) constructor call ##### Tools. Incremental Compile - [`KT-69042`](https://youtrack.jetbrains.com/issue/KT-69042) K2: changing a Java constant won't cause Kotlin usages to recompile - [`KT-63476`](https://youtrack.jetbrains.com/issue/KT-63476) Investigate the debug output of JVM compilation in KMP IC smoke tests ##### Tools. JPS - [`KT-63707`](https://youtrack.jetbrains.com/issue/KT-63707) JPS: "Multiple values are not allowed for" caused by Compose ##### Tools. Kapt - [`KT-68145`](https://youtrack.jetbrains.com/issue/KT-68145) K2 KAPT: missing $annotations methods for const properties and private properties without accessors - [`KT-67495`](https://youtrack.jetbrains.com/issue/KT-67495) File leak in when building with kapt - [`KT-66780`](https://youtrack.jetbrains.com/issue/KT-66780) K2 KAPT Kotlinc should exit with an exit code 1 (compilation error) if a Kapt task fails - [`KT-66998`](https://youtrack.jetbrains.com/issue/KT-66998) K2 KAPT: Reimplement support for DefaultImpls ##### Tools. Scripts - [`KT-69296`](https://youtrack.jetbrains.com/issue/KT-69296) scripting dependency resolution does not authenticate towards maven mirrors - [`KT-67575`](https://youtrack.jetbrains.com/issue/KT-67575) FromConfigurationsBase script definition unexpected behaviour with regex from gradle templates - [`KT-67066`](https://youtrack.jetbrains.com/issue/KT-67066) DeepCopyIrTreeWithSymbols does not copy IrScript nodes correctly - [`KT-67071`](https://youtrack.jetbrains.com/issue/KT-67071) K2: ScriptCompilationConfigurationFromDefinition is not serializable - [`KT-67063`](https://youtrack.jetbrains.com/issue/KT-67063) LauncherReplTest flaky on Windows ##### Tools. Wasm - [`KT-70220`](https://youtrack.jetbrains.com/issue/KT-70220) K/Wasm: Upgrade NPM dependencies - [`KT-69245`](https://youtrack.jetbrains.com/issue/KT-69245) K/Wasm: Remove warning of working-in-progress - [`KT-69154`](https://youtrack.jetbrains.com/issue/KT-69154) K/Wasm: wasmJsBrowserProductionRun flaky crash with "WebAssembly.instantiate(): Import ... function import requires a callable" - [`KT-68930`](https://youtrack.jetbrains.com/issue/KT-68930) K/Wasm: Production run doesn not use optimize task result - [`KT-67901`](https://youtrack.jetbrains.com/issue/KT-67901) K/Wasm: Add kotlin-wasm-examples to CI - [`KT-67468`](https://youtrack.jetbrains.com/issue/KT-67468) Gradle task build (allTests) fails on default web project - [`KT-67980`](https://youtrack.jetbrains.com/issue/KT-67980) Wasm: Incorrect "Please choose a JavaScript environment to build distributions and run tests" when WASM is not configured - [`KT-67862`](https://youtrack.jetbrains.com/issue/KT-67862) K/Wasm: Make usage of ChromeWasmGc an error ### [`v2.0.10`](https://github.com/JetBrains/kotlin/releases/tag/v2.0.10): Kotlin 2.0.10 ##### 2.0.10 ##### Apple Ecosystem - [`KT-68257`](https://youtrack.jetbrains.com/issue/KT-68257) Xcode incorrectly reuses embedAndSign framework when moving to and from 2.0.0 ##### Compiler ##### Fixes - [`KT-69876`](https://youtrack.jetbrains.com/issue/KT-69876) K2 Compile exception: Only IrBlockBody together with kotlinx serialization - [`KT-68521`](https://youtrack.jetbrains.com/issue/KT-68521) K2: Property's private setters can be bypassed when using plusAssign and minusAssign operators - [`KT-68667`](https://youtrack.jetbrains.com/issue/KT-68667) K2: Compiler hangs on mapNotNull and elvis inside lambda - [`KT-68747`](https://youtrack.jetbrains.com/issue/KT-68747) K2: Long compilation time because of constraint solving when using typealias in different modules - [`KT-68940`](https://youtrack.jetbrains.com/issue/KT-68940) K2: "IllegalArgumentException: All variables should be fixed to something" - [`KT-68797`](https://youtrack.jetbrains.com/issue/KT-68797) K2 / Native: "java.lang.IllegalStateException: FIELD" caused by enabled caching - [`KT-68362`](https://youtrack.jetbrains.com/issue/KT-68362) False-positive ABSTRACT\_MEMBER\_NOT\_IMPLEMENTED for inheritor of java class which directly implements java.util.Map - [`KT-68449`](https://youtrack.jetbrains.com/issue/KT-68449) K2: "when" expression returns Unit - [`KT-67072`](https://youtrack.jetbrains.com/issue/KT-67072) K2: inconsistent stability of open vals on receivers of final type - [`KT-68570`](https://youtrack.jetbrains.com/issue/KT-68570) K2: "Unresolved reference" in call with lambda argument and nested lambda argument - [`KT-69159`](https://youtrack.jetbrains.com/issue/KT-69159) K2: KotlinNothingValueException in Exposed - [`KT-68623`](https://youtrack.jetbrains.com/issue/KT-68623) K2: "Only safe or null-asserted calls are allowed" on safe call - [`KT-68193`](https://youtrack.jetbrains.com/issue/KT-68193) JDK 21: new MutableList.addFirst/addLast methods allow adding nullable value for non-null types - [`KT-67804`](https://youtrack.jetbrains.com/issue/KT-67804) removeFirst and removeLast return type with Java 21 - [`KT-68727`](https://youtrack.jetbrains.com/issue/KT-68727) K2: "Null argument in ExpressionCodegen for parameter VALUE\_PARAMETER" caused by an enum class with default parameter in a different module - [`KT-68383`](https://youtrack.jetbrains.com/issue/KT-68383) K2: "Argument type mismatch: actual type is 'kotlin.String', but 'T & Any' was expected." with intersection types - [`KT-68546`](https://youtrack.jetbrains.com/issue/KT-68546) K2: false-positive conflicting overloads error on inheriting generic type with inherited generic and non-generic member overloads - [`KT-68626`](https://youtrack.jetbrains.com/issue/KT-68626) K2: "Conflicting Overloads" for function if inherited from generic type - [`KT-68351`](https://youtrack.jetbrains.com/issue/KT-68351) K2: "Suspension functions can only be called within coroutine body" - [`KT-68489`](https://youtrack.jetbrains.com/issue/KT-68489) K2: WRONG\_ANNOTATION\_TARGET with Java and Kotlin `@Target` annotation positions - [`KT-69058`](https://youtrack.jetbrains.com/issue/KT-69058) K2: Java-defined property annotations not persisted - [`KT-64515`](https://youtrack.jetbrains.com/issue/KT-64515) K2 IDE: \[NEW\_INFERENCE\_ERROR] in a build.gradle.kts script while applying "jvm-test-suite" plugin and then configuring targets for test suites - [`KT-68016`](https://youtrack.jetbrains.com/issue/KT-68016) K2: Gradle repo test `should compile correctly with Kotlin explicit api mode` fails on K2 - [`KT-68575`](https://youtrack.jetbrains.com/issue/KT-68575) K2: `@ParameterName` annotation is not erased when inferring the type of `it` in lambdas - [`KT-67999`](https://youtrack.jetbrains.com/issue/KT-67999) K2: lost flexibility on parameters of Java SAM - [`KT-59679`](https://youtrack.jetbrains.com/issue/KT-59679) K2: Investigate extracting uncompleted candidates from blocks - [`KT-68401`](https://youtrack.jetbrains.com/issue/KT-68401) K2: "IllegalAccessError: failed to access class" caused by package private super Java type, when inferencing a common super type of if or when branches on JVM - [`KT-68806`](https://youtrack.jetbrains.com/issue/KT-68806) K/Wasm RuntimeError: unreachable on Sequence::toList - [`KT-68455`](https://youtrack.jetbrains.com/issue/KT-68455) K2: False negative UPPER\_BOUND\_VIOLATED\_BASED\_ON\_JAVA\_ANNOTATIONS - [`KT-68538`](https://youtrack.jetbrains.com/issue/KT-68538) KJS/K2: using `while` with `break` inside inline lambdas leads to an endless cycle - [`KT-68798`](https://youtrack.jetbrains.com/issue/KT-68798) JVM compiler crashes on calling private expect constructor with a default parameter - [`KT-68734`](https://youtrack.jetbrains.com/issue/KT-68734) K2: enum class in KMP: Expect declaration `MMKVLogLevel` is incompatible with actual `MMKVLogLevel` because modality is different - [`KT-68674`](https://youtrack.jetbrains.com/issue/KT-68674) False positive ACTUAL\_WITHOUT\_EXPECT in K2 - [`KT-68350`](https://youtrack.jetbrains.com/issue/KT-68350) K2: "Inapplicable candidate(s)" caused by parameter reference of local class with type parameters from function - [`KT-68571`](https://youtrack.jetbrains.com/issue/KT-68571) K2: "IllegalStateException: Fake override should have at least one overridden descriptor" caused by exceptions and when statement - [`KT-68523`](https://youtrack.jetbrains.com/issue/KT-68523) K2: FileAnalysisException when using Definitely non-nullable types - [`KT-68339`](https://youtrack.jetbrains.com/issue/KT-68339) K2: "Enum entry \* is uninitialized here" caused by lazy property with enum in `when` expression - [`KT-66688`](https://youtrack.jetbrains.com/issue/KT-66688) K2: false-negative "upper bound violated" error in extension receiver - [`KT-68630`](https://youtrack.jetbrains.com/issue/KT-68630) DiagnosticsSuppressor is not invoked with Kotlin 2.0 - [`KT-68222`](https://youtrack.jetbrains.com/issue/KT-68222) K2. KMP. False negative `Expected declaration must not have a body` for expected top-level property with getter/setter - [`KT-64103`](https://youtrack.jetbrains.com/issue/KT-64103) FirExpectActualDeclarationChecker reports diagnostic error for KtPsiSimpleDiagnostic with KtFakeSourceElement - [`KT-68191`](https://youtrack.jetbrains.com/issue/KT-68191) K2. Static fake-overrides are not generated for kotlin Fir2IrLazyClass - [`KT-68024`](https://youtrack.jetbrains.com/issue/KT-68024) K2: Gradle repo test `accessors to kotlin internal task types...` fails on K2 - [`KT-64957`](https://youtrack.jetbrains.com/issue/KT-64957) K1: drop ModuleAnnotationResolver ##### Compose compiler - [`0c5a858`](https://github.com/JetBrains/kotlin/commit/0c5a858604da726792d5b3c16374bb6cba5baf2f) Fix memoization of captureless lambdas when K2 compiler is used [b/340582180](https://issuetracker.google.com/issues/340582180) - [`a8249d6`](https://github.com/JetBrains/kotlin/commit/a8249d60c7cd14a459469fe0ef2099721d3dd699) Allow memoizing lambdas in composable inline functions [b/340606661](https://issuetracker.google.com/issues/340606661) ##### Native - [`KT-68094`](https://youtrack.jetbrains.com/issue/KT-68094) K2/Native: Member inherits different '`@Throws`' when inheriting from generic type ##### Tools. Compiler Plugins - [`KT-69187`](https://youtrack.jetbrains.com/issue/KT-69187) Compose compiler for web doesn't support rememberComposableLambda - [`KT-68557`](https://youtrack.jetbrains.com/issue/KT-68557) K2. Supertypes resolution of KJK hierarchy fails in presence of allopen plugin ##### Tools. Compiler plugins. Serialization - [`KT-68850`](https://youtrack.jetbrains.com/issue/KT-68850) Compose lambda type not transformed with KGP 2 + new Compose plugin ##### Tools. Daemon - [`KT-68297`](https://youtrack.jetbrains.com/issue/KT-68297) KGP 2.0 regression: JAVA\_TOOL\_OPTIONS is not considered in Kotlin daemon creation ##### Tools. Gradle - [`KT-69330`](https://youtrack.jetbrains.com/issue/KT-69330) KotlinCompile friendPathsSet property is racy due causing build cache invalidation - [`KT-69026`](https://youtrack.jetbrains.com/issue/KT-69026) Mark AGP 8.5.0 as compatible with KGP - [`KT-68447`](https://youtrack.jetbrains.com/issue/KT-68447) ill-added intentionally-broken dependency source configurations - [`KT-69078`](https://youtrack.jetbrains.com/issue/KT-69078) Gradle: Add option to disable FUS Service - [`KT-68278`](https://youtrack.jetbrains.com/issue/KT-68278) Spring resource loading in combination with `java-test-fixtures` plugin broken - [`KT-66452`](https://youtrack.jetbrains.com/issue/KT-66452) Gradle produces false positive configuration cache problem for Project usage at execution time - [`KT-68242`](https://youtrack.jetbrains.com/issue/KT-68242) Run tests against AGP 8.4.0 ##### Tools. Gradle. Multiplatform - [`KT-68805`](https://youtrack.jetbrains.com/issue/KT-68805) KMP project (re-)import took a long time for downloading platform libs - [`KT-68248`](https://youtrack.jetbrains.com/issue/KT-68248) kotlin multiplatform project fail to build on Fedora with corretto ##### Tools. Gradle. Native - [`KT-68638`](https://youtrack.jetbrains.com/issue/KT-68638) KGP 2.0 breaks native test with api dependencies and configuration cache - [`KT-65761`](https://youtrack.jetbrains.com/issue/KT-65761) Missing JDK Platform ClassLoader when compiling Kotlin native in daemon ##### Tools. JPS - [`KT-69204`](https://youtrack.jetbrains.com/issue/KT-69204) Generate lookups in dumb mode for compatibility with ref index ##### Tools. Kapt - [`KT-68171`](https://youtrack.jetbrains.com/issue/KT-68171) K2KAPT: boxed return types in overridden methods changed to primitives ##### Tools. Scripts - [`KT-68681`](https://youtrack.jetbrains.com/issue/KT-68681) K2 / CLI / Script: "NullPointerException: getService(...) must not be null" caused by `@DependsOn` - [`KT-67747`](https://youtrack.jetbrains.com/issue/KT-67747) K2: regression in Spring unit tests using `javax.script.ScriptEngine` ### [`v2.0.0`](https://github.com/JetBrains/kotlin/releases/tag/v2.0.0): Kotlin 2.0.0 ##### Changelog ##### Analysis. API ##### New Features - [`KT-65327`](https://youtrack.jetbrains.com/issue/KT-65327) Support reading klib contents in Analysis API ##### Performance Improvements - [`KT-65560`](https://youtrack.jetbrains.com/issue/KT-65560) K2: Anaysis API: ContextCollector triggers redundant resolution in the case of file elements - [`KT-64987`](https://youtrack.jetbrains.com/issue/KT-64987) Analysis API: 50GB memory allocation on creating empty kotlinx.collections.immutable.persistentMapOf - [`KT-61789`](https://youtrack.jetbrains.com/issue/KT-61789) K2: optimize getFirForNonKtFileElement for references inside super type reference - [`KT-59498`](https://youtrack.jetbrains.com/issue/KT-59498) K2: getOnAirGetTowerContextProvider took too much time due to on air resolve - [`KT-61728`](https://youtrack.jetbrains.com/issue/KT-61728) Analysis API: optimize AllCandidatesResolver.getAllCandidates ##### Fixes - [`KT-65561`](https://youtrack.jetbrains.com/issue/KT-65561) Analysis API: dummy.kt is not a physical file - [`KT-65616`](https://youtrack.jetbrains.com/issue/KT-65616) K2: FirDeclarationStatusImpl cannot be cast to FirResolvedDeclarationStatus from STATUS - [`KT-65600`](https://youtrack.jetbrains.com/issue/KT-65600) Analysis Api: FirFile for KtCodeFragments are created and not updated on changes - [`KT-64919`](https://youtrack.jetbrains.com/issue/KT-64919) K2 IDE: Implement KMP support for sealed class inheritors - [`KT-64241`](https://youtrack.jetbrains.com/issue/KT-64241) K2: Unresolved calls to functions in scripts depending on included projects - [`KT-65813`](https://youtrack.jetbrains.com/issue/KT-65813) Analysis API Standalone: `FirDeclarationForCompiledElementSearcher` does not find compiled elements - [`KT-66052`](https://youtrack.jetbrains.com/issue/KT-66052) AA: render expect/actual modifier - [`KT-66795`](https://youtrack.jetbrains.com/issue/KT-66795) KtCodeFragment.clone() is broken - [`KT-66532`](https://youtrack.jetbrains.com/issue/KT-66532) K2 CodeGen AA: missing annotation setup for function in source module but not in a compile target file - [`KT-64833`](https://youtrack.jetbrains.com/issue/KT-64833) Analysis API: Members implemented by delegation have no overridden symbols - [`KT-62405`](https://youtrack.jetbrains.com/issue/KT-62405) Analysis API: Symbols `SUBSTITUTION_OVERRIDE` have no overridden symbols - [`KT-66749`](https://youtrack.jetbrains.com/issue/KT-66749) K2: "Collection contains no element matching the predicate" on an unresolved call - [`KT-62832`](https://youtrack.jetbrains.com/issue/KT-62832) K2: ClassCastException: FirDeclarationStatusImpl cannot be cast to FirResolvedDeclarationStatus - [`KT-66719`](https://youtrack.jetbrains.com/issue/KT-66719) AbstractGetKlibSourceFileNameTest: The dependency to ":native:analysis-api-klib-reader" breaks JPS compilation - [`KT-66603`](https://youtrack.jetbrains.com/issue/KT-66603) Analysis API: support type annotations in KtPsiTypeProviderMixIn#asPsiType - [`KT-64505`](https://youtrack.jetbrains.com/issue/KT-64505) Analysis API Standalone: Remove test-specific calculation of sealed class inheritors - [`KT-66013`](https://youtrack.jetbrains.com/issue/KT-66013) Analysis API Standalone: Sealed inheritors aren't correctly calculated for source classes - [`KT-62880`](https://youtrack.jetbrains.com/issue/KT-62880) K2 IDE: Unresolved java annotation methods in KDoc - [`KT-66530`](https://youtrack.jetbrains.com/issue/KT-66530) K2: Analysis API: KtPsiTypeProvider#asKtType crashes on PsiClassType for Java type parameter with wrong use site - [`KT-65571`](https://youtrack.jetbrains.com/issue/KT-65571) Support VirtualFile inputs to Analysis API modules - [`KT-66485`](https://youtrack.jetbrains.com/issue/KT-66485) Substituted types are not provided for callable references - [`KT-66498`](https://youtrack.jetbrains.com/issue/KT-66498) Analysis API: 'KtFe10SymbolDeclarationOverridesProvider' considers a class to be a subclass of itself - [`KT-64579`](https://youtrack.jetbrains.com/issue/KT-64579) K2 IDE: "Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirValueParameterImpl(Source) but FirArgumentListImpl found" - [`KT-65978`](https://youtrack.jetbrains.com/issue/KT-65978) Analysis API: Use soft references in `FileStructureCache` - [`KT-64051`](https://youtrack.jetbrains.com/issue/KT-64051) K2 IDE: Analysis API: Unresolved links to typealias in KDoc - [`KT-66189`](https://youtrack.jetbrains.com/issue/KT-66189) K2 / IDE: KtFirExpressionTypeProvider bugs - [`KT-61422`](https://youtrack.jetbrains.com/issue/KT-61422) K2 IDE: "No array element type for vararg value parameter: org.jetbrains.kotlin.fir.declarations.impl.FirValueParameterImpl" - [`KT-66276`](https://youtrack.jetbrains.com/issue/KT-66276) K2: Analysis API: `TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM` false positive for script parameter - [`KT-66232`](https://youtrack.jetbrains.com/issue/KT-66232) K2: Analysis API: cover ScriptWithCustomDefDiagnosticsTestBaseGenerated by LL FIR tests - [`KT-60996`](https://youtrack.jetbrains.com/issue/KT-60996) K2: Stub Based Deserializer: Set versionRequirements to enable VERSION\_REQUIREMENT\_DEPRECATION diagnostics - [`KT-66306`](https://youtrack.jetbrains.com/issue/KT-66306) K2: Analysis API: drop ability to enable global phase resolve lock - [`KT-55750`](https://youtrack.jetbrains.com/issue/KT-55750) LL FIR: Implement multi-threaded resolve - [`KT-65563`](https://youtrack.jetbrains.com/issue/KT-65563) Analysis API: Missing session component `FirExpectActualMatchingContextFactory` in `LLFirLibrarySession` - [`KT-66173`](https://youtrack.jetbrains.com/issue/KT-66173) K2: No 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter' in array owner: LLFirLibrarySession - [`KT-66238`](https://youtrack.jetbrains.com/issue/KT-66238) Gradle kotlin build scripts - a lot of unresolved symbols after latest changes in kotlin master - [`KT-65099`](https://youtrack.jetbrains.com/issue/KT-65099) K2: Recursive local storage cache check for Fir2IrDeclarationStorage::createAndCacheIrPropertySymbols() - [`KT-65265`](https://youtrack.jetbrains.com/issue/KT-65265) Analysis API: Add library session invalidation tests - [`KT-56288`](https://youtrack.jetbrains.com/issue/KT-56288) Analysis API: Add tests for session invalidation on the Analysis API side - [`KT-64000`](https://youtrack.jetbrains.com/issue/KT-64000) K2: make AnnotationArgumentsStateKeepers more accurate - [`KT-63606`](https://youtrack.jetbrains.com/issue/KT-63606) K2: Analysis API: rewrite FirLazyAnnotationTransformer to avoid redundant transformations - [`KT-65191`](https://youtrack.jetbrains.com/issue/KT-65191) KtFirMultiplatformInfoProvider#getExpectForActual doesn't return expect function for slightly broken code - [`KT-62136`](https://youtrack.jetbrains.com/issue/KT-62136) Analysis API: Add concurrent tests for `CleanableSoftValueCache` - [`KT-61222`](https://youtrack.jetbrains.com/issue/KT-61222) K2: Add lifecycle management for `KtResolveExtension` - [`KT-65960`](https://youtrack.jetbrains.com/issue/KT-65960) Analysis API: Test infrastructure indexes binary libraries from decompiled files instead of stubs during IDE mode tests - [`KT-65240`](https://youtrack.jetbrains.com/issue/KT-65240) K2: CodeGen API fails to resolve Annotation parameter type when it runs FIR2IR for a class with a parent class from other module if the parent class has an annotation from another module - [`KT-65344`](https://youtrack.jetbrains.com/issue/KT-65344) K2: make FirScript statements (declarations) independent - [`KT-65930`](https://youtrack.jetbrains.com/issue/KT-65930) AA: receiver type for `Int?::foo` misses nullability - [`KT-65914`](https://youtrack.jetbrains.com/issue/KT-65914) AA: receiver type for `this::foo` returns return type of the target callable - [`KT-62071`](https://youtrack.jetbrains.com/issue/KT-62071) Analysis API: KtFirScopeProvider.getScopeContextForPosition throws exception when ImplicitReceiverValue.implicitScope is null - [`KT-65780`](https://youtrack.jetbrains.com/issue/KT-65780) K2: polish FileStructure implementation for FirFile - [`KT-62840`](https://youtrack.jetbrains.com/issue/KT-62840) K2 Script: everything around destructuring declaration on top level of scripts are broken - [`KT-64528`](https://youtrack.jetbrains.com/issue/KT-64528) K2 IDE: MPP: unregistered component 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter' - [`KT-64921`](https://youtrack.jetbrains.com/issue/KT-64921) K2 IDE: references in platform code resolve to expect classifier instead of actual - [`KT-61296`](https://youtrack.jetbrains.com/issue/KT-61296) K2: do not resolve the entire file on lazyResolve call if FirFile is passed - [`KT-65683`](https://youtrack.jetbrains.com/issue/KT-65683) Analysis API: Dangling file session creation causes a `computeIfAbsent` contract violation - [`KT-64884`](https://youtrack.jetbrains.com/issue/KT-64884) K2 IDE. FP \[NAMED\_PARAMETER\_NOT\_FOUND] for copy method of library data class when class has not parameter-properties - [`KT-65763`](https://youtrack.jetbrains.com/issue/KT-65763) K2: value parameter from library data class copy have RAW\_FIR phase - [`KT-65665`](https://youtrack.jetbrains.com/issue/KT-65665) Analysis API: support `KtDelegatedSuperTypeEntry` in `KtFirExpressionInfoProvider.isUsedAsExpression` - [`KT-62899`](https://youtrack.jetbrains.com/issue/KT-62899) K2 IDE. IDE ignores `@Suppress` annotation for errors - [`KT-65655`](https://youtrack.jetbrains.com/issue/KT-65655) Analysis API: `KtCodeCompilationException` should not strongly reference FIR sessions - [`KT-62302`](https://youtrack.jetbrains.com/issue/KT-62302) Support PsiType -> KtType conversion - [`KT-64604`](https://youtrack.jetbrains.com/issue/KT-64604) K2: IDE K2: "Modules are inconsistent during performance tests" - [`KT-65345`](https://youtrack.jetbrains.com/issue/KT-65345) K2: unify FirDesignation and LLFirResolveTarget - [`KT-61757`](https://youtrack.jetbrains.com/issue/KT-61757) K2 IDE: resolution to buitlins does not work for from common module - [`KT-65268`](https://youtrack.jetbrains.com/issue/KT-65268) K2: Checking the presence of the delegated constructor call forces AST loading - [`KT-63330`](https://youtrack.jetbrains.com/issue/KT-63330) Analysis API: Stub-based deserialized symbol providers provide unresolved enum entry annotation arguments - [`KT-65418`](https://youtrack.jetbrains.com/issue/KT-65418) Analysis API: `LLFirAbstractSessionFactory` loads anchor module sessions eagerly - [`KT-64718`](https://youtrack.jetbrains.com/issue/KT-64718) Analysis API: do not expose SealedClassInheritorsProvider and FirRegularClass to IDE Plugin - [`KT-65075`](https://youtrack.jetbrains.com/issue/KT-65075) K2: getContainingDeclaration() is broken for declarations inside code fragments - [`KT-61332`](https://youtrack.jetbrains.com/issue/KT-61332) Support `KtTypeCodeFragment` in `PsiRawFirBuilder` - [`KT-65150`](https://youtrack.jetbrains.com/issue/KT-65150) AA: incorrect result from `KtTypeProvider#getReceiverTypeForDoubleColonExpression` for Java static method - [`KT-56551`](https://youtrack.jetbrains.com/issue/KT-56551) LL FIR: implement parallel resolve for jumping phases - [`KT-65223`](https://youtrack.jetbrains.com/issue/KT-65223) Psi: avoid KtFile usages - [`KT-65307`](https://youtrack.jetbrains.com/issue/KT-65307) Analysis API FE10: support KtFe10AnalysisSessionProvider.getAnalysisSessionByUseSiteKtModule - [`KT-62695`](https://youtrack.jetbrains.com/issue/KT-62695) K2 IDE: Unresolved extension functions in KDoc - [`KT-65152`](https://youtrack.jetbrains.com/issue/KT-65152) Analysis API: KDoc references to packages are not fully resolved - [`KT-64988`](https://youtrack.jetbrains.com/issue/KT-64988) K2 IDE: Navigation from the named argument in safe call does not work - [`KT-63195`](https://youtrack.jetbrains.com/issue/KT-63195) AA: incorrect results from `KtTypeProvider#getReceiverTypeForDoubleColonExpression` - [`KT-64074`](https://youtrack.jetbrains.com/issue/KT-64074) K2: Investigate LL divergence for Script.testTopLevelPropertyInitialization - [`KT-62441`](https://youtrack.jetbrains.com/issue/KT-62441) K2: IDE K2: "No dangling modifier found" - [`KT-62895`](https://youtrack.jetbrains.com/issue/KT-62895) K2 IDE. FP `'when' expression must be exhaustive` with sealed interface from library - [`KT-64993`](https://youtrack.jetbrains.com/issue/KT-64993) Analysis API: KtExpressionTypeProvider.getExpectedType works incorrectly for arguments of safe calls - [`KT-64883`](https://youtrack.jetbrains.com/issue/KT-64883) Allow direct creation of KtCommonFile - [`KT-64646`](https://youtrack.jetbrains.com/issue/KT-64646) K2: properly forbid ast loading during raw fir phase in tests - [`KT-64862`](https://youtrack.jetbrains.com/issue/KT-64862) Psi: missed parenthesis in type reference presentation - [`KT-62893`](https://youtrack.jetbrains.com/issue/KT-62893) K2 IDE. FP 'when' expression must be exhaustive with Java sealed interface from library - [`KT-63795`](https://youtrack.jetbrains.com/issue/KT-63795) K2: `lazyResolveToPhase(BODY_RESOLVE)` cannot be called from a transformer with a phase BODY\_RESOLVE from SealedClassInheritorsProviderIdeImpl - [`KT-64805`](https://youtrack.jetbrains.com/issue/KT-64805) Analysis API: introduce common entry point for multi-file test cases - [`KT-64714`](https://youtrack.jetbrains.com/issue/KT-64714) K2: Analysis API: CollectionsKt.map doesn't resolves from Java in kotlin repo - [`KT-64647`](https://youtrack.jetbrains.com/issue/KT-64647) K2: Allow to calculate decompiled inheritors for sealed classes in tests - [`KT-64595`](https://youtrack.jetbrains.com/issue/KT-64595) AA: stackoverflow while simplifying a type with a recursive type parameter - [`KT-64825`](https://youtrack.jetbrains.com/issue/KT-64825) Analysis API. Cannot compute containing PSI for unknown source kind 'org.jetbrains.kotlin.KtFakeSourceElementKind$DefaultAccessor' exception on getContainingSymbol call for default setter parameter - [`KT-64080`](https://youtrack.jetbrains.com/issue/KT-64080) K2: Analysis API: On-air resolve does not trigger resolution of delegated super call arguments - [`KT-64243`](https://youtrack.jetbrains.com/issue/KT-64243) K2: proper lazy resolution for fake overrides - [`KT-62891`](https://youtrack.jetbrains.com/issue/KT-62891) K2 IDE. FP \[EXPOSED\_FUNCTION\_RETURN\_TYPE] on overriding library method which returns protected type - [`KT-62667`](https://youtrack.jetbrains.com/issue/KT-62667) K2: Cannot find enclosing declaration for KtNameReferenceExpression (on-air, imports) - [`KT-61890`](https://youtrack.jetbrains.com/issue/KT-61890) Analysis API: Migrate KtFirScopeProvider to ContextCollector instead of onAirResolve - [`KT-64197`](https://youtrack.jetbrains.com/issue/KT-64197) K2: Code fragments are only supported in JVM - [`KT-62357`](https://youtrack.jetbrains.com/issue/KT-62357) K2 IDE. False positive on generated component methods and false negative on getter of `@JvmRecord` classes in Java - [`KT-62892`](https://youtrack.jetbrains.com/issue/KT-62892) K2 IDE. Java outer class from other module is not resolved when nested class is accessed with fq name in a type position - [`KT-62888`](https://youtrack.jetbrains.com/issue/KT-62888) K2 IDE. IDE infers reference to `KMutableProperty` as reference to just `KProperty` - [`KT-64584`](https://youtrack.jetbrains.com/issue/KT-64584) K2: StubBasedFirDeserializedSymbolProvider: support deserialization of delegated declarations - [`KT-60324`](https://youtrack.jetbrains.com/issue/KT-60324) K2 IDE: "NoSuchElementException: List is empty at JavaOverrideChecker#buildErasure" - [`KT-62896`](https://youtrack.jetbrains.com/issue/KT-62896) K2 IDE. FP ABSTRACT\_MEMBER\_NOT\_IMPLEMENTED on inheriting class from library which implements interface by delegation - [`KT-62947`](https://youtrack.jetbrains.com/issue/KT-62947) Analysis API: Error while resolving FirPropertyImpl - [`KT-64468`](https://youtrack.jetbrains.com/issue/KT-64468) Analysis API: Implement mixed multi-module tests which support different kinds of `KtModule`s - [`KT-56541`](https://youtrack.jetbrains.com/issue/KT-56541) Symbol Light Classes: No `@NotNull` annotations are generated for accessors of lateinit properties of unresolved types - [`KT-63547`](https://youtrack.jetbrains.com/issue/KT-63547) K2 IDE. False Positive AMBIGUOUS\_ANNOTATION\_ARGUMENT - [`KT-64205`](https://youtrack.jetbrains.com/issue/KT-64205) Analysis API: Do not import non-top-level callables by default - [`KT-63056`](https://youtrack.jetbrains.com/issue/KT-63056) K2: Cannot mutate an immutable ImplicitReceiverValue on FirCodeFragment analysis - [`KT-64108`](https://youtrack.jetbrains.com/issue/KT-64108) K2: KtFirSymbolDeclarationOverridesProvider shouldn't provide fake overrides - [`KT-63752`](https://youtrack.jetbrains.com/issue/KT-63752) K2: java.lang.StackOverflowError FirFieldSymbol.getHasInitializer - [`KT-63718`](https://youtrack.jetbrains.com/issue/KT-63718) Analysis API: Stub-based dependency symbol providers of library source sessions compute the wrong package name sets - [`KT-64225`](https://youtrack.jetbrains.com/issue/KT-64225) K2: IDE K2: "FirLazyBlock should be calculated before accessing" in evaluate debuger completion - [`KT-64186`](https://youtrack.jetbrains.com/issue/KT-64186) Analysis API: ContextCollector provides incorrect scopes for anonymous objects - [`KT-63979`](https://youtrack.jetbrains.com/issue/KT-63979) K2 IDE: presentation of types in completion is too verbose - [`KT-63681`](https://youtrack.jetbrains.com/issue/KT-63681) K2: LL FIR: Improve isResolved check coverage of after lazy resolution - [`KT-62982`](https://youtrack.jetbrains.com/issue/KT-62982) K2: Cannot get a PSI element for 'Enum.values' - [`KT-59732`](https://youtrack.jetbrains.com/issue/KT-59732) FirLazyResolveContractViolationException: `lazyResolveToPhase(IMPORTS)` cannot be called from a transformer with a phase IMPORTS from serialisation plugin - [`KT-62676`](https://youtrack.jetbrains.com/issue/KT-62676) K2 IDE: Reference shortener does not recoginize redundant this references - [`KT-63627`](https://youtrack.jetbrains.com/issue/KT-63627) K2 IDE: shorten reference shortens required qualifier - [`KT-62675`](https://youtrack.jetbrains.com/issue/KT-62675) K2 IDE: Reference shortener does not recoginize redundant labels - [`KT-60957`](https://youtrack.jetbrains.com/issue/KT-60957) K2: Analysis API: Reference shortener does not work correctly with invoke function calls on properties - [`KT-63771`](https://youtrack.jetbrains.com/issue/KT-63771) fe10: KtNamedClassOrObjectSymbol#isInline does not cover value classes - [`KT-60327`](https://youtrack.jetbrains.com/issue/KT-60327) K2 IDE. "IllegalArgumentException: source must not be null" during delegation declaration - [`KT-62421`](https://youtrack.jetbrains.com/issue/KT-62421) K2: IDE K2: "`lazyResolveToPhase(BODY_RESOLVE)` cannot be called from a transformer with a phase BODY\_RESOLVE." - [`KT-62587`](https://youtrack.jetbrains.com/issue/KT-62587) K2 IDE. FP unresolved reference on accessing nested class in annotation argument - [`KT-63700`](https://youtrack.jetbrains.com/issue/KT-63700) K2: "FirLazyExpression should be calculated before accessing" in the case of secondary constructor - [`KT-61383`](https://youtrack.jetbrains.com/issue/KT-61383) K2: 'KtCompilerFacility' fails on code fragment compilation in library sources with duplicated dependencies - [`KT-62111`](https://youtrack.jetbrains.com/issue/KT-62111) K2 IDE. IllegalArgumentException on for loop with iterator declaration attempt - [`KT-63538`](https://youtrack.jetbrains.com/issue/KT-63538) Analysis API: Removing a contract statement via `PsiElement.delete()` does not trigger an out-of-block modification - [`KT-63694`](https://youtrack.jetbrains.com/issue/KT-63694) K1/K2 IDE. "RuntimeException: Broken stub format, most likely version of kotlin.FILE (kotlin.FILE) was not updated after serialization changes" exception on incorrect class name - [`KT-63660`](https://youtrack.jetbrains.com/issue/KT-63660) K2: expect-actual gutter icons must be shown when declarations are matched but incompatible - [`KT-63560`](https://youtrack.jetbrains.com/issue/KT-63560) Analysis API: Modifiable PSI tests cannot rely on the cached application environment to allow write access - [`KT-62980`](https://youtrack.jetbrains.com/issue/KT-62980) Implement `KtFirSimpleNameReference#getImportAlias` - [`KT-63130`](https://youtrack.jetbrains.com/issue/KT-63130) Analysis API: No receiver found for broken code during commit document - [`KT-62705`](https://youtrack.jetbrains.com/issue/KT-62705) K2: "lazyResolveToPhase(IMPORTS) cannot be called..." from light classes - [`KT-60170`](https://youtrack.jetbrains.com/issue/KT-60170) K2 IDE: CCE from KtFirCallResolver on invalid code with wrong implicit invoke - [`KT-61783`](https://youtrack.jetbrains.com/issue/KT-61783) K2: Analyze 'KtCodeFragment' in a separate session - [`KT-62010`](https://youtrack.jetbrains.com/issue/KT-62010) K2: IDE K2: "ConeClassLikeTypeImpl is not resolved to symbol for on-error type" - [`KT-62957`](https://youtrack.jetbrains.com/issue/KT-62957) Analysis API: NullPointerException on call resolution when builtins are not available - [`KT-61252`](https://youtrack.jetbrains.com/issue/KT-61252) K2: IDE K2: "By now the annotations argument mapping should have been resolved" - [`KT-62935`](https://youtrack.jetbrains.com/issue/KT-62935) Analysis API: `kotlin.Cloneable` should not be available in Kotlin/Native sources - [`KT-62910`](https://youtrack.jetbrains.com/issue/KT-62910) Analysis API: create AbstractFirPsiNativeDiagnosticsTest for LL FIR - [`KT-63096`](https://youtrack.jetbrains.com/issue/KT-63096) K2: Analysis API: KotlinAnnotationsResolver for IDE is created with incorrect scope - [`KT-62310`](https://youtrack.jetbrains.com/issue/KT-62310) K2 IDE. False positives errors with external annotations - [`KT-63282`](https://youtrack.jetbrains.com/issue/KT-63282) K2 Script: annotation arguments phase should resolve propagated annotations - [`KT-62397`](https://youtrack.jetbrains.com/issue/KT-62397) K2 IDE. FP Error in the editor on `RequiresOptIn` annotation from the lib despite the warning level - [`KT-63223`](https://youtrack.jetbrains.com/issue/KT-63223) Analysis API: reference to declarations with kotlin\* package are not resolved - [`KT-62626`](https://youtrack.jetbrains.com/issue/KT-62626) IllegalStateException: Cannot build symbol for class org.jetbrains.kotlin.psi.KtScriptInitializer - [`KT-62693`](https://youtrack.jetbrains.com/issue/KT-62693) K2: IDE K2: "PSI should present for declaration built by Kotlin code" - [`KT-62674`](https://youtrack.jetbrains.com/issue/KT-62674) K2: "Scope for type ConeClassLikeTypeImpl" is null from transitive dependencies - [`KT-61889`](https://youtrack.jetbrains.com/issue/KT-61889) Analysis API: Migrate KtFirReferenceShortener to ContextCollector instead of FirResolveContextCollector - [`KT-62772`](https://youtrack.jetbrains.com/issue/KT-62772) Analysis API: No 'org.jetbrains.kotlin.fir.java.FirSyntheticPropertiesStorage'(31) in array owner: LLFirSourcesSession when analysing builtins in a context of common code - [`KT-60319`](https://youtrack.jetbrains.com/issue/KT-60319) K2 IDE: "Stability for initialized variable always should be computable" - [`KT-62859`](https://youtrack.jetbrains.com/issue/KT-62859) K2 IDE: "Evaluate expression" throws exception when calling "Any?.toString()" - [`KT-63058`](https://youtrack.jetbrains.com/issue/KT-63058) K2 IDE: Code completion unexpectedly imports static/companion object method - [`KT-62588`](https://youtrack.jetbrains.com/issue/KT-62588) getExpectedType should not calculate type of the expression - [`KT-61990`](https://youtrack.jetbrains.com/issue/KT-61990) K2: Unexpected returnTypeRef for FirSyntheticProperty - [`KT-62625`](https://youtrack.jetbrains.com/issue/KT-62625) K2: 'FirLazyExpression should be calculated before accessing' for unresolved super type - [`KT-62691`](https://youtrack.jetbrains.com/issue/KT-62691) K2: optimize getFirForNonKtFileElement for references inside 'where' - [`KT-62834`](https://youtrack.jetbrains.com/issue/KT-62834) K2: missing file node level in control flow builder - [`KT-62768`](https://youtrack.jetbrains.com/issue/KT-62768) Analysis API: No 'org.jetbrains.kotlin.fir.scopes.impl.FirDelegatedMembersFilter'(44) in array owner: LLFirSourcesSession exception on analysing common code - [`KT-62874`](https://youtrack.jetbrains.com/issue/KT-62874) K2: FirLazyExpression should be calculated before accessing - [`KT-62407`](https://youtrack.jetbrains.com/issue/KT-62407) Analysis API: resolve `[this]` in KDoc to extension receiver - [`KT-61204`](https://youtrack.jetbrains.com/issue/KT-61204) K2: "FirLazyExpression should be calculated before accessing in ktor HttpBinApplication" - [`KT-61901`](https://youtrack.jetbrains.com/issue/KT-61901) Analysis API: Declared member scopes for Java classes are missing static members - [`KT-61800`](https://youtrack.jetbrains.com/issue/KT-61800) Analysis API: Provide separate declared member scopes for non-static and static callables - [`KT-61255`](https://youtrack.jetbrains.com/issue/KT-61255) Analysis API: Get rid of `valueOf`, `values` and `entries` from a declared member scope - [`KT-62466`](https://youtrack.jetbrains.com/issue/KT-62466) Expected type for functional expression should include inferred types - [`KT-61203`](https://youtrack.jetbrains.com/issue/KT-61203) IDE K2: "Expected FirResolvedArgumentList for FirAnnotationCallImpl of FirRegularClassImpl(Source) but FirArgumentListImpl found" - [`KT-61791`](https://youtrack.jetbrains.com/issue/KT-61791) Analysis API: Implement combined `getPackage` for combined Kotlin symbol providers - [`KT-62437`](https://youtrack.jetbrains.com/issue/KT-62437) K2 IDE. Resolution does not work inside lambda expression in constructor argument in supertypes - [`KT-62244`](https://youtrack.jetbrains.com/issue/KT-62244) K2: Analysis API Standalone: Resolving klib dependencies from binary roots terminates application - [`KT-62897`](https://youtrack.jetbrains.com/issue/KT-62897) K2 IDE. Unresolved declarations from libraries which are doubled in `intellij` project libraries - [`KT-61615`](https://youtrack.jetbrains.com/issue/KT-61615) K2: No 'org.jetbrains.kotlin.fir.analysis.js.checkers.FirJsModuleKind' in array owner: LLFirSourcesSession - [`KT-59334`](https://youtrack.jetbrains.com/issue/KT-59334) K2: LLFirImplicitTypesLazyResolver problems - [`KT-62038`](https://youtrack.jetbrains.com/issue/KT-62038) K2: Nested classes are missing in symbol light class structure tests for libraries - [`KT-61788`](https://youtrack.jetbrains.com/issue/KT-61788) Analysis API: Symbol for `FirAnonymousInitializer` cannot be null - [`KT-62139`](https://youtrack.jetbrains.com/issue/KT-62139) Analysis API: KtFe10AnalysisSession.createContextDependentCopy does not need validity check - [`KT-62090`](https://youtrack.jetbrains.com/issue/KT-62090) Analysis API: introduce an API to get a substitution formed by class inheritance - [`KT-62268`](https://youtrack.jetbrains.com/issue/KT-62268) K2 IDE. No autocompletion and IllegalStateException for Pair - [`KT-60325`](https://youtrack.jetbrains.com/issue/KT-60325) K2 IDE. "IllegalArgumentException: source must not be null" on `throw` usage attempt - [`KT-61431`](https://youtrack.jetbrains.com/issue/KT-61431) K2: KtPropertyAccessorSymbolPointer pointer already disposed for $$result script property - [`KT-58490`](https://youtrack.jetbrains.com/issue/KT-58490) K2: LLFirTypeLazyResolver problems - [`KT-58494`](https://youtrack.jetbrains.com/issue/KT-58494) K2: LLFirAnnotationArgumentsLazyResolver problems - [`KT-58492`](https://youtrack.jetbrains.com/issue/KT-58492) K2: LLFirBodyLazyResolver problems - [`KT-58769`](https://youtrack.jetbrains.com/issue/KT-58769) K2: LL FIR: implement platform-dependent session factories - [`KT-60343`](https://youtrack.jetbrains.com/issue/KT-60343) K2 IDE. IllegalArgumentException on passing incorrect type parameter to function - [`KT-61842`](https://youtrack.jetbrains.com/issue/KT-61842) K2: reduce number of "in-block modification" events - [`KT-62012`](https://youtrack.jetbrains.com/issue/KT-62012) K2: "KtReadActionConfinementLifetimeToken is inaccessible: Called outside analyse method" - [`KT-61371`](https://youtrack.jetbrains.com/issue/KT-61371) K2: Analysis API standalone: register compiler symbol provider for libraries in standalone mode - [`KT-60611`](https://youtrack.jetbrains.com/issue/KT-60611) K2: reduce number of "in-block modification" events - [`KT-61425`](https://youtrack.jetbrains.com/issue/KT-61425) Analysis API: Provide a way to get a declared member scope for an enum entry's initializing anonymous object - [`KT-61405`](https://youtrack.jetbrains.com/issue/KT-61405) Analysis API: An enum entry should not be a `KtSymbolWithMembers` - [`KT-55504`](https://youtrack.jetbrains.com/issue/KT-55504) AA: remove dependency on :compiler:cli from standalone AA - [`KT-60904`](https://youtrack.jetbrains.com/issue/KT-60904) K2: IDE K2: "For DESTRUCTURING\_DECLARATION\_ENTRY with text `_`, one of element types expected, but FirValueParameterSymbol found" - [`KT-61260`](https://youtrack.jetbrains.com/issue/KT-61260) K2 Scripts: Containing function should be not null for KtParameter - [`KT-61568`](https://youtrack.jetbrains.com/issue/KT-61568) FIR Analysis API: `collectCallCandidates` gives presence to the top level functions in the presence of more suitable overrides - [`KT-60610`](https://youtrack.jetbrains.com/issue/KT-60610) K2 IDE: move "out of block" processing logic into LL FIR - [`KT-61597`](https://youtrack.jetbrains.com/issue/KT-61597) Analysis API: KotlinIllegalStateExceptionWithAttachments: expected as maximum one `expect` for the actual on errorneous code with multiple expects - [`KT-59793`](https://youtrack.jetbrains.com/issue/KT-59793) K2: class org.jetbrains.kotlin.fir.declarations.impl.FirErrorImportImpl cannot be cast to class org.jetbrains.kotlin.fir.declarations.FirResolvedImport - [`KT-61599`](https://youtrack.jetbrains.com/issue/KT-61599) K2: ContextCollector: Support smart cast collection - [`KT-61689`](https://youtrack.jetbrains.com/issue/KT-61689) Analysis API: ContextCollector provides incorrect context in scripts - [`KT-61683`](https://youtrack.jetbrains.com/issue/KT-61683) Analysis API: resolve ambiguities in kotlin project - [`KT-61245`](https://youtrack.jetbrains.com/issue/KT-61245) Analysis API: ContextCollector provides incorrect context for supertype constructor calls - [`KT-60384`](https://youtrack.jetbrains.com/issue/KT-60384) K2: Opening `@JvmName` source in IDEA: NPE at PsiRawFirBuilder$Visitor.toFirConstructor() - [`KT-60918`](https://youtrack.jetbrains.com/issue/KT-60918) K2 IDE: "FirDeclaration was not found for class org.jetbrains.kotlin.psi.KtDestructuringDeclarationEntry, fir is null" - [`KT-61013`](https://youtrack.jetbrains.com/issue/KT-61013) K2 Scripts: LLFirReturnTypeCalculatorWithJump: No designation of local declaration - [`KT-59517`](https://youtrack.jetbrains.com/issue/KT-59517) K2 IDE: KotlinExceptionWithAttachments: Modules are inconsistent - [`KT-61331`](https://youtrack.jetbrains.com/issue/KT-61331) K2: add cache restoring in case of existing context - [`KT-61408`](https://youtrack.jetbrains.com/issue/KT-61408) K2: IDE K2: "Inconsistency in the cache. Someone without context put a null value in the cache" ##### Analysis. Light Classes ##### Performance Improvements - [`KT-63486`](https://youtrack.jetbrains.com/issue/KT-63486) SLC: a lot of RAM is allocated in `org.jetbrains.kotlin.asJava.LightClassUtil.isMangled` ##### Fixes - [`KT-66692`](https://youtrack.jetbrains.com/issue/KT-66692) SLC: `findAttributeValue` for attribute w/ default value in Java returns `null` - [`KT-61734`](https://youtrack.jetbrains.com/issue/KT-61734) SLC: wildcard suppression not honored - [`KT-65112`](https://youtrack.jetbrains.com/issue/KT-65112) Symbol Light Classes don't support annotations on type parameters - [`KT-65843`](https://youtrack.jetbrains.com/issue/KT-65843) K2: Light method returns `kotlin.Unit` type for `TestResult` return type - [`KT-65653`](https://youtrack.jetbrains.com/issue/KT-65653) SLC: wrong binary resolution to function with value class - [`KT-65393`](https://youtrack.jetbrains.com/issue/KT-65393) SLC: missing deprecated-hidden property - [`KT-64772`](https://youtrack.jetbrains.com/issue/KT-64772) SLC: presence of source PSI for compiler-generated declaration - [`KT-65425`](https://youtrack.jetbrains.com/issue/KT-65425) K2 IDE: Seeing a reference to the class generated by compiler plugin exposed from Java code caused NPE from light classes - [`KT-64937`](https://youtrack.jetbrains.com/issue/KT-64937) SLC: internal setters are not mangled - [`KT-63949`](https://youtrack.jetbrains.com/issue/KT-63949) K2 IDE. Analyze hang on `@Autowired` constructor analysis - [`KT-63087`](https://youtrack.jetbrains.com/issue/KT-63087) K2 IDE: in .java source reference to JvmName names on unsigned type / value class are unresolved - [`KT-64605`](https://youtrack.jetbrains.com/issue/KT-64605) K2 IDE: usage of `@Repeatable` annotation in Java: false positive "Duplicate annotation" - [`KT-64795`](https://youtrack.jetbrains.com/issue/KT-64795) SLC: distinguish last v.s. non-last `vararg` value parameter type during binary resolution - [`KT-61605`](https://youtrack.jetbrains.com/issue/KT-61605) K2 IDE: Light elements do not obey platform contracts - [`KT-57536`](https://youtrack.jetbrains.com/issue/KT-57536) SLC: no need to populate members with `expect` modifier - [`KT-64320`](https://youtrack.jetbrains.com/issue/KT-64320) Decouple kotlin psi from java PSI - [`KT-64282`](https://youtrack.jetbrains.com/issue/KT-64282) Decouple KotlinIconProviderService from java PSI - [`KT-63552`](https://youtrack.jetbrains.com/issue/KT-63552) Symbol Light Classes don't support arrayOf and similar without parameters in property initializers and default parameter values ##### Apple Ecosystem - [`KT-63821`](https://youtrack.jetbrains.com/issue/KT-63821) Copy framework to BUILT\_PRODUCTS\_DIR in the embedAndSign task - [`KT-67892`](https://youtrack.jetbrains.com/issue/KT-67892) KotlinNativeLink task instantiates with a fixed list of apiFiles - [`KT-64096`](https://youtrack.jetbrains.com/issue/KT-64096) Diagnostic when embedAndSign used for framework with cocoapods-dependencies - [`KT-66446`](https://youtrack.jetbrains.com/issue/KT-66446) Diagnostic never showed, and build fails when CocoaPods dependency is used with embedAndSign task and linking type is dynamic - [`KT-66445`](https://youtrack.jetbrains.com/issue/KT-66445) Diagnostic never showed when CocoaPods dependency is used with embedAndSign task and linking type is static - [`KT-62373`](https://youtrack.jetbrains.com/issue/KT-62373) "Xcode higher than tested" diagnostic - [`KT-63212`](https://youtrack.jetbrains.com/issue/KT-63212) podInstall task fails without a proper diagnostic when xcodeproj gem is outdated ##### Backend. Native. Debug - [`KT-65553`](https://youtrack.jetbrains.com/issue/KT-65553) K2: Native: kt42208WithPassingLambdaToAnotherFunction test fails with K2 - [`KT-57365`](https://youtrack.jetbrains.com/issue/KT-57365) \[Native] Incorrect debug info on inline function call site ##### Backend. Wasm ##### New Features - [`KT-65009`](https://youtrack.jetbrains.com/issue/KT-65009) Generate TypeScript definitions for the `@JsExport` declarations in K/Wasm - [`KT-58088`](https://youtrack.jetbrains.com/issue/KT-58088) \[PL] Support & enable partial linkage for Wasm - [`KT-66327`](https://youtrack.jetbrains.com/issue/KT-66327) Include information about particular Wasm target into KLib manifest ##### Fixes - [`KT-66465`](https://youtrack.jetbrains.com/issue/KT-66465) WASM support doesn't appear to be able to see some common declarations - [`KT-66905`](https://youtrack.jetbrains.com/issue/KT-66905) K/Wasm: support new version of exception handling proposal - [`KT-66515`](https://youtrack.jetbrains.com/issue/KT-66515) Wasm: "call param types must match" during the build - [`KT-67435`](https://youtrack.jetbrains.com/issue/KT-67435) K/Wasm: import.meta.url transforming into absolute local path in webpack - [`KT-65777`](https://youtrack.jetbrains.com/issue/KT-65777) Implement named export for Kotlin/Wasm - [`KT-65660`](https://youtrack.jetbrains.com/issue/KT-65660) \[WasmJs] Support catching JS exceptions - [`KT-65824`](https://youtrack.jetbrains.com/issue/KT-65824) Wasm: Allow unsigned primitives to be used inside functions annotated with `@JsExport` - [`KT-66103`](https://youtrack.jetbrains.com/issue/KT-66103) Wasm: companion object is not initialized in test initializers1.kt - [`KT-66471`](https://youtrack.jetbrains.com/issue/KT-66471) Null method reference with Kotlin/Wasm on 2.0.0-Beta4 - [`KT-65210`](https://youtrack.jetbrains.com/issue/KT-65210) K/Wasm `::class` operator produces Number KClass for Short expression - [`KT-66065`](https://youtrack.jetbrains.com/issue/KT-66065) \[Wasm] Make specialisations for closured primitive values - [`KT-64890`](https://youtrack.jetbrains.com/issue/KT-64890) K/Wasm compiler crash with external class and Kodein - [`KT-66104`](https://youtrack.jetbrains.com/issue/KT-66104) Wasm: compiler crash: NoSuchElementException: Sequence contains no element matching the predicate - [`KT-65778`](https://youtrack.jetbrains.com/issue/KT-65778) Create the same TypeScript tests infrastructure for Kotlin/Wasm that we have now for Kotlin/JS - [`KT-65411`](https://youtrack.jetbrains.com/issue/KT-65411) Kotlin/Wasm: Boolean boxed instances are not the same - [`KT-65713`](https://youtrack.jetbrains.com/issue/KT-65713) Kotlin/Wasm generates a wrapper that cannot run in Deno - [`KT-63939`](https://youtrack.jetbrains.com/issue/KT-63939) Kotlin/Wasm Support lazy associated object initialisation - [`KT-61888`](https://youtrack.jetbrains.com/issue/KT-61888) \[Kotlin/wasm] in kotlin.test support for `@AfterTest` for async tests - [`KT-64803`](https://youtrack.jetbrains.com/issue/KT-64803) K/Wasm: non-capturing lambdas are not singleton unlike same lambdas in jvm - [`KT-64449`](https://youtrack.jetbrains.com/issue/KT-64449) K2: Implement K1WasmWasiCodegenBoxTestGenerated for K2 - [`KT-64829`](https://youtrack.jetbrains.com/issue/KT-64829) K/Wasm: division remainder has a wrong sign - [`KT-58852`](https://youtrack.jetbrains.com/issue/KT-58852) WASM: two methods with different varargs: Class korlibs.template.dynamic.DynamicShape has 2 methods with the same signature \[register(kotlin.Array<T of kotlin.Array>) - [`KT-61263`](https://youtrack.jetbrains.com/issue/KT-61263) K/Wasm: add a way to turn on k2 in wasm examples using Compose - [`KT-62863`](https://youtrack.jetbrains.com/issue/KT-62863) Execution failed for task ':kotlinx-serialization-properties:wasmJsD8Test' in serialization in the K2 QG - [`KT-62657`](https://youtrack.jetbrains.com/issue/KT-62657) K/Wasm: switch to json repots for Kotlin Wasm Benchmarks - [`KT-62147`](https://youtrack.jetbrains.com/issue/KT-62147) \[Kotlin/Wasm] Nothing typed when expression cause a backend error - [`KT-61958`](https://youtrack.jetbrains.com/issue/KT-61958) Update SpiderMonkey and return its usage in box tests when they switch to the final opcodes for GC and FTR proposals - [`KT-60828`](https://youtrack.jetbrains.com/issue/KT-60828) K/Wasm: return br\_on\_cast\_fail usages - [`KT-59084`](https://youtrack.jetbrains.com/issue/KT-59084) WASM: "RuntimeError: illegal cast" caused by inline class and JsAny - [`KT-60700`](https://youtrack.jetbrains.com/issue/KT-60700) \[WASM] test FirWasmCodegenBoxTestGenerated.testSuspendUnitConversion failed after KT-60259 ##### Compiler ##### New Features - [`KT-45375`](https://youtrack.jetbrains.com/issue/KT-45375) Generate all Kotlin lambdas via invokedynamic + LambdaMetafactory by default - [`KT-24664`](https://youtrack.jetbrains.com/issue/KT-24664) No smartcast on stable property if receiver had non-null assertion - [`KT-23915`](https://youtrack.jetbrains.com/issue/KT-23915) Add smart cast to non-nullable type after elvis operator - [`KT-61077`](https://youtrack.jetbrains.com/issue/KT-61077) Support provideDelegate inference from var property type - [`KT-59688`](https://youtrack.jetbrains.com/issue/KT-59688) K2: consider removing smartcasts only from the only visibile property with specific name, not from all of them - [`KT-7389`](https://youtrack.jetbrains.com/issue/KT-7389) Intersection type for type parameter with multiple upper bounds in star projection - [`KT-63477`](https://youtrack.jetbrains.com/issue/KT-63477) Consider supporting builder-style type inference from Unit coercion of last statements in lambdas - [`KT-61907`](https://youtrack.jetbrains.com/issue/KT-61907) K2: builder inference works with assignments to member properties - [`KT-61909`](https://youtrack.jetbrains.com/issue/KT-61909) K2: builder inference infers correct types from assignments to extension properties - [`KT-59551`](https://youtrack.jetbrains.com/issue/KT-59551) K2: builder inference works with anonymous functions if builder parameter has a receiver with a postponed type variable - [`KT-65443`](https://youtrack.jetbrains.com/issue/KT-65443) \[K/N] Implement header caches - [`KT-4113`](https://youtrack.jetbrains.com/issue/KT-4113) Smart casts for properties to not-null functional types at `invoke` calls - [`KT-65681`](https://youtrack.jetbrains.com/issue/KT-65681) K2: Improve error message of UPPER\_BOUND\_VIOLATED when upper bound is a captured type or other non-denotable type - [`KT-32754`](https://youtrack.jetbrains.com/issue/KT-32754) Choose existing extensions over additional built-ins members from JDK except overrides - [`KT-57800`](https://youtrack.jetbrains.com/issue/KT-57800) Support synthetic properties on `super` receiver - [`KT-64350`](https://youtrack.jetbrains.com/issue/KT-64350) K2: deprecate using typealias as a callable qualifier in imports - [`KT-26565`](https://youtrack.jetbrains.com/issue/KT-26565) Choose existing extensions over additional built-ins members from JDK - [`KT-65478`](https://youtrack.jetbrains.com/issue/KT-65478) JVM: Change inlined variable naming format - [`KT-64702`](https://youtrack.jetbrains.com/issue/KT-64702) Upper bound of type parameter is ignored when capturing of in-projection appears in out position - [`KT-60274`](https://youtrack.jetbrains.com/issue/KT-60274) K2: builder inference works through a delegated local variable inside builder argument - [`KT-65859`](https://youtrack.jetbrains.com/issue/KT-65859) Calls refinement extension point - [`KT-15220`](https://youtrack.jetbrains.com/issue/KT-15220) Reuse resolution results of common code for platform modules in multiplatform projects - [`KT-60476`](https://youtrack.jetbrains.com/issue/KT-60476) K2: False positive NO\_VALUE\_FOR\_PARAMETER in platform code for value class with default parameter in common declaration - [`KT-65153`](https://youtrack.jetbrains.com/issue/KT-65153) K/N: extract liveness analysis to a separate phase - [`KT-59098`](https://youtrack.jetbrains.com/issue/KT-59098) Support -Xjdk-release=1.6/1.7 with -jvm-target 1.8 - [`KT-63670`](https://youtrack.jetbrains.com/issue/KT-63670) Implement platform specific declaration clash diagnostics across all backends - [`KT-62547`](https://youtrack.jetbrains.com/issue/KT-62547) Introduce a language feature flag for smartcasts based on "memory" variables - [`KT-60820`](https://youtrack.jetbrains.com/issue/KT-60820) K1: Empty vararg value is inserted in serialized annotation call with expect default vararg value - [`KT-58172`](https://youtrack.jetbrains.com/issue/KT-58172) Forbid `expect class A actual constructor` - [`KT-54443`](https://youtrack.jetbrains.com/issue/KT-54443) Smart cast to non-null after safe-call in require - [`KT-25747`](https://youtrack.jetbrains.com/issue/KT-25747) DFA variables: propagate smart cast results from local variables - [`KT-22997`](https://youtrack.jetbrains.com/issue/KT-22997) Smart-cast should merge is-check for non-nullable type and a null check to a nullable type - [`KT-22996`](https://youtrack.jetbrains.com/issue/KT-22996) Smart casts should observe nullability after is-check with a nullable subject type - [`KT-22004`](https://youtrack.jetbrains.com/issue/KT-22004) Allow to resolve CONFLICTING\_OVERLOADS with Deprecated(HIDDEN) - [`KT-61955`](https://youtrack.jetbrains.com/issue/KT-61955) Support more wider actual member visibility, if the expect member is effectively final - [`KT-59504`](https://youtrack.jetbrains.com/issue/KT-59504) K2 compiler does not require resolved 'componentX' functions for the placeholder ('\_') variables in the destructuring declarations - [`KT-62239`](https://youtrack.jetbrains.com/issue/KT-62239) Allow enum entries without parentheses uniformly - [`KT-11712`](https://youtrack.jetbrains.com/issue/KT-11712) Smart cast is not applied for invisible setter ##### Performance Improvements - [`KT-47545`](https://youtrack.jetbrains.com/issue/KT-47545) NI: Slow type inference involving large when-expression (ConstraintInjector.processConstraints) - [`KT-62714`](https://youtrack.jetbrains.com/issue/KT-62714) Do not add nullability annotations to the methods of inner classes in enum entries - [`KT-62903`](https://youtrack.jetbrains.com/issue/KT-62903) Unoptimzied `when` compilation - [`KT-67388`](https://youtrack.jetbrains.com/issue/KT-67388) FP intellij: performance degradation in build 611 - [`KT-67507`](https://youtrack.jetbrains.com/issue/KT-67507) K2: Slow compilation times when a class has a lot of possibly conflicting declarations - [`KT-65005`](https://youtrack.jetbrains.com/issue/KT-65005) K2: Investigate testCommonSuperTypeContravariant performance - [`KT-65996`](https://youtrack.jetbrains.com/issue/KT-65996) Compiler enters endless loop - [`KT-66341`](https://youtrack.jetbrains.com/issue/KT-66341) K2: Don't build IdSignatures in FIR2IR with IR f/o builder - [`KT-66172`](https://youtrack.jetbrains.com/issue/KT-66172) K2: Improve memory consumption of `KtPsiSourceElement` - [`KT-50860`](https://youtrack.jetbrains.com/issue/KT-50860) Combination of array set convention and plusAssign works exponentially - [`KT-62798`](https://youtrack.jetbrains.com/issue/KT-62798) 'in' range checks are not intrinsified in kotlin-stdlib - [`KT-65579`](https://youtrack.jetbrains.com/issue/KT-65579) K2: performance regression in FP Space - [`KT-61635`](https://youtrack.jetbrains.com/issue/KT-61635) K2: `getConstructorKeyword` call in `PsiRawFirBuilder.toFirConstructor` forces AST load - [`KT-62619`](https://youtrack.jetbrains.com/issue/KT-62619) FIR: Checker performance regression due to MISSING\_DEPENDENCY checkers - [`KT-62044`](https://youtrack.jetbrains.com/issue/KT-62044) Do not add nullability annotations to the methods of anonymous class - [`KT-62706`](https://youtrack.jetbrains.com/issue/KT-62706) Optimize KtSourceElement.findChild() - [`KT-62513`](https://youtrack.jetbrains.com/issue/KT-62513) Do not add nullability annotations to the methods of local classes - [`KT-61991`](https://youtrack.jetbrains.com/issue/KT-61991) K2: avoid redundant full body resolution for properties during implicit type phase - [`KT-61604`](https://youtrack.jetbrains.com/issue/KT-61604) \[K/N] Bitcode dependency linking is slow for large compilations - [`KT-61121`](https://youtrack.jetbrains.com/issue/KT-61121) \[K/N] Kotlin Native compiler performance is slow when generating large frameworks - [`KT-57616`](https://youtrack.jetbrains.com/issue/KT-57616) K2: Consider optimizing reversed versions of persistent lists in FirTowerDataContext ##### Fixes - [`KT-67993`](https://youtrack.jetbrains.com/issue/KT-67993) K2: PCLA Inference throws exception with local objects - [`KT-61768`](https://youtrack.jetbrains.com/issue/KT-61768) Wrong bytecode index in LineNumberTable when there is an incremental operation - [`KT-63580`](https://youtrack.jetbrains.com/issue/KT-63580) "AssertionError: access of const val: GET\_FIELD" caused by const value and variable with delegation - [`KT-63567`](https://youtrack.jetbrains.com/issue/KT-63567) "NoSuchMethodError" on getting value of lazily initialized property by companion's const value - [`KT-56078`](https://youtrack.jetbrains.com/issue/KT-56078) K2: build kotlinx.coroutines - [`KT-67609`](https://youtrack.jetbrains.com/issue/KT-67609) K2: False negative INFERRED\_TYPE\_VARIABLE\_INTO\_EMPTY\_INTERSECTION\_ERROR - [`KT-57750`](https://youtrack.jetbrains.com/issue/KT-57750) Report ambiguity error when resolving types and having the same-named classes star imported - [`KT-65603`](https://youtrack.jetbrains.com/issue/KT-65603) K2: No approximation is done on public, but effectively private property - [`KT-59932`](https://youtrack.jetbrains.com/issue/KT-59932) K2: Disappeared AMBIGUOUS\_ANONYMOUS\_TYPE\_INFERRED - [`KT-59906`](https://youtrack.jetbrains.com/issue/KT-59906) K2: Disappeared CAPTURED\_VAL\_INITIALIZATION - [`KT-53886`](https://youtrack.jetbrains.com/issue/KT-53886) NoSuchMethodError exception in Kotlin/Native compiler - [`KT-57678`](https://youtrack.jetbrains.com/issue/KT-57678) K2: Inconsistency in how K2 analyzes unresolved code for loops and changing closures - [`KT-57871`](https://youtrack.jetbrains.com/issue/KT-57871) K1/K2 inconsistency on if-conditional without else-branch in parenthesis - [`KT-56384`](https://youtrack.jetbrains.com/issue/KT-56384) K2: build IntelliJ monorepo master branch - [`KT-49191`](https://youtrack.jetbrains.com/issue/KT-49191) Leaked integer literals from lambda with flexible return type - [`KT-65812`](https://youtrack.jetbrains.com/issue/KT-65812) K2: "OutOfMemoryError: Java heap space" in kotlin.utils.SmartList.add - [`KT-67224`](https://youtrack.jetbrains.com/issue/KT-67224) K2/Native: Member overrides different '`@Throws`' filter from separate module - [`KT-65623`](https://youtrack.jetbrains.com/issue/KT-65623) K2: Unresolved reference in connection with casts - [`KT-64136`](https://youtrack.jetbrains.com/issue/KT-64136) K2: NSME with Anvil compiler plugin - [`KT-51241`](https://youtrack.jetbrains.com/issue/KT-51241) Provide a error when override method has different set of context receivers - [`KT-52920`](https://youtrack.jetbrains.com/issue/KT-52920) Confusing "Multiple arguments applicable for context receiver" error message - [`KT-67912`](https://youtrack.jetbrains.com/issue/KT-67912) K2: Cannot inference type properly from inline function with Type parameter - [`KT-68056`](https://youtrack.jetbrains.com/issue/KT-68056) Prohibit referencing java field in case of conflict with property from companion object of the derived class - [`KT-61129`](https://youtrack.jetbrains.com/issue/KT-61129) K2: Implement error suppression warning - [`KT-67367`](https://youtrack.jetbrains.com/issue/KT-67367) K2: Incorrect resolution to top-level function with less specific signature in presence of SAM constructor on the same tower level - [`KT-50179`](https://youtrack.jetbrains.com/issue/KT-50179) Fix DUPLICATE\_LABEL\_IN\_WHEN warning with new rules of complex boolean constants - [`KT-45334`](https://youtrack.jetbrains.com/issue/KT-45334) Prohibit referencing constructors of sealed classes by its inner members - [`KT-59943`](https://youtrack.jetbrains.com/issue/KT-59943) K2: Disappeared OPERATOR\_MODIFIER\_REQUIRED - [`KT-67875`](https://youtrack.jetbrains.com/issue/KT-67875) K2: Resolution ambiguity between Iterable and varargs - [`KT-67699`](https://youtrack.jetbrains.com/issue/KT-67699) Not enough information to infer type argument for 'Error' using Arrow's Raise context receiver since Kotlin 2.0.0-Beta3 - [`KT-67486`](https://youtrack.jetbrains.com/issue/KT-67486) K2: Calling method from a Java (implementing a Kotlin class) with named parameters is no longer possible if Java method has different parameter names - [`KT-66527`](https://youtrack.jetbrains.com/issue/KT-66527) K2: type mismatch on override for <anonymous> type - [`KT-59897`](https://youtrack.jetbrains.com/issue/KT-59897) K2: Disappeared PACKAGE\_OR\_CLASSIFIER\_REDECLARATION - [`KT-50020`](https://youtrack.jetbrains.com/issue/KT-50020) K2: False-negative USAGE\_IS\_NOT\_INLINEABLE when lambda in receiver position - [`KT-44557`](https://youtrack.jetbrains.com/issue/KT-44557) Implement main function detection to FIR - [`KT-67810`](https://youtrack.jetbrains.com/issue/KT-67810) K2: public-API inline function cannot access non-public-API annotation enum - [`KT-66447`](https://youtrack.jetbrains.com/issue/KT-66447) Implement KT-59138 under a language feature - [`KT-54862`](https://youtrack.jetbrains.com/issue/KT-54862) Anonymous type can be exposed from private inline function from type argument - [`KT-37592`](https://youtrack.jetbrains.com/issue/KT-37592) Property invoke of a functional type with receiver is preferred over extension function invoke - [`KT-51194`](https://youtrack.jetbrains.com/issue/KT-51194) False negative CONFLICTING\_INHERITED\_MEMBERS when dependency class contained in two different versions of the same dependency - [`KT-67221`](https://youtrack.jetbrains.com/issue/KT-67221) K2: "new inference error \[NewConstraintError at Incorporate TypeVariable" for captured type - [`KT-66701`](https://youtrack.jetbrains.com/issue/KT-66701) K2: Java interface method override via Kotlin class rejected - [`KT-60604`](https://youtrack.jetbrains.com/issue/KT-60604) K2: introduced NON\_PUBLIC\_CALL\_FROM\_PUBLIC\_INLINE, `@PublishedApi` needed for constants in annotations - [`KT-64309`](https://youtrack.jetbrains.com/issue/KT-64309) Generate a variable mapping for continuation parameter in suspend methods just from the start - [`KT-65438`](https://youtrack.jetbrains.com/issue/KT-65438) K2: Introduce WEAKLY\_HIDDEN concept to built-in-JDK content mapping - [`KT-65235`](https://youtrack.jetbrains.com/issue/KT-65235) JDK 21 might lead to change in overloads resolution - [`KT-66768`](https://youtrack.jetbrains.com/issue/KT-66768) K1: False positive UNRESOLVED\_REFERENCE in super.getFirst/getLast call - [`KT-67106`](https://youtrack.jetbrains.com/issue/KT-67106) Platforms libs-dependant autotests for ObjC checkers - [`KT-65440`](https://youtrack.jetbrains.com/issue/KT-65440) K2: Mark all potential implementations of List.getFirst()/getLast() as deprecated independently of JDK - [`KT-65594`](https://youtrack.jetbrains.com/issue/KT-65594) K2: Type inference fails on NullMarked object with star type - [`KT-62849`](https://youtrack.jetbrains.com/issue/KT-62849) Unoptimised bytecode for Java synthetic property references - [`KT-60174`](https://youtrack.jetbrains.com/issue/KT-60174) JVM IR inline: accidental reification in various cases - [`KT-57609`](https://youtrack.jetbrains.com/issue/KT-57609) K2: Stop relying on the presence of `@UnsafeVariance` using for contravariant parameters - [`KT-54316`](https://youtrack.jetbrains.com/issue/KT-54316) Out-of-call reference to companion object's member has invalid signature - [`KT-66976`](https://youtrack.jetbrains.com/issue/KT-66976) Some value class diagnostics are missed - [`KT-57426`](https://youtrack.jetbrains.com/issue/KT-57426) Incorrect error message on inapplicable smartcast from alien property - [`KT-55111`](https://youtrack.jetbrains.com/issue/KT-55111) OptIn: forbid constructor calls with default arguments under marker - [`KT-49856`](https://youtrack.jetbrains.com/issue/KT-49856) Incorrect smartcast on var assigned in try-catch block - [`KT-41237`](https://youtrack.jetbrains.com/issue/KT-41237) ReturnsImplies contract for receiver of member function does not work (no smartcast) - [`KT-37878`](https://youtrack.jetbrains.com/issue/KT-37878) No Smart cast for class literal reference of nullable generic type - [`KT-35846`](https://youtrack.jetbrains.com/issue/KT-35846) Smart cast with unchecked cast leads to unresolved call that was resolved before (both old and new inference) - [`KT-30867`](https://youtrack.jetbrains.com/issue/KT-30867) Unsound smartcast if smartcast source and break is placed in for-in header as function arguments - [`KT-30267`](https://youtrack.jetbrains.com/issue/KT-30267) Inconsistent smart casts in while (true) - [`KT-33917`](https://youtrack.jetbrains.com/issue/KT-33917) Prohibit to expose anonymous types from private inline functions - [`KT-28889`](https://youtrack.jetbrains.com/issue/KT-28889) Smart cast does not work with boolean `and` infix function - [`KT-54790`](https://youtrack.jetbrains.com/issue/KT-54790) False positive NO\_ELSE\_IN\_WHEN when all interfaces are sealed - [`KT-54920`](https://youtrack.jetbrains.com/issue/KT-54920) K2: `when` with a single branch stops being exhaustive the second time it's done - [`KT-53364`](https://youtrack.jetbrains.com/issue/KT-53364) False positive UNUSED\_VARIABLE warning for variable that is used across multiple blocks - [`KT-43234`](https://youtrack.jetbrains.com/issue/KT-43234) False positive INVALID\_IF\_AS\_EXPRESSION caused by `if` without `else` inside `else` inside synchronized() - [`KT-38490`](https://youtrack.jetbrains.com/issue/KT-38490) False negative INVALID\_IF\_AS\_EXPRESSION with unreachable code and coercion to Unit - [`KT-35510`](https://youtrack.jetbrains.com/issue/KT-35510) No INVALID\_IF\_AS\_EXPRESSION ("'if' must have both main and 'else' branches if used as an expression") diagnostic for if-expression with only one branch and Nothing type condition - [`KT-34016`](https://youtrack.jetbrains.com/issue/KT-34016) Contracts - variable cannot be initialized before declaration - [`KT-56408`](https://youtrack.jetbrains.com/issue/KT-56408) Inconsistent rules of CFA in class initialization block between K1 and K2 - [`KT-33829`](https://youtrack.jetbrains.com/issue/KT-33829) False positive SENSELESS\_COMPARISON with assignment in catch block - [`KT-30717`](https://youtrack.jetbrains.com/issue/KT-30717) False positive UNUSED\_VARIABLE with local var used in inline lambda block with loop, return and other lambda - [`KT-28232`](https://youtrack.jetbrains.com/issue/KT-28232) RETURN\_NOT\_ALLOWED in inline lambda argument of '\[... ]' operator convention - [`KT-26116`](https://youtrack.jetbrains.com/issue/KT-26116) No error when class member val is referenced in inline function before it is assigned later on - [`KT-25311`](https://youtrack.jetbrains.com/issue/KT-25311) Calls on error type values lead to false-positive unreachable code - [`KT-24372`](https://youtrack.jetbrains.com/issue/KT-24372) Misleading warning on unused setter parameter in some cases - [`KT-23680`](https://youtrack.jetbrains.com/issue/KT-23680) False positive UNREACHABLE\_CODE on `throw` with a `return` inside `finally` clause - [`KT-23502`](https://youtrack.jetbrains.com/issue/KT-23502) When exhaustiveness is not checked for unreachable code, resulting in JVM back-end error - [`KT-22621`](https://youtrack.jetbrains.com/issue/KT-22621) "throw throw Exception()": False negative UNREACHABLE\_CODE warning - [`KT-22317`](https://youtrack.jetbrains.com/issue/KT-22317) No INITIALIZATION\_BEFORE\_DECLARATION without primary constructor - [`KT-67307`](https://youtrack.jetbrains.com/issue/KT-67307) K2: "Cannot find cached type parameter by FIR symbol" in JpaRepository.saveAll - [`KT-67185`](https://youtrack.jetbrains.com/issue/KT-67185) K2: Incorrect coercion-to-Unit leading to CCE at runtime - [`KT-64891`](https://youtrack.jetbrains.com/issue/KT-64891) K2: consider supporting/forbidding foo.(bar)() syntax - [`KT-59480`](https://youtrack.jetbrains.com/issue/KT-59480) K2: build moko-resources - [`KT-65771`](https://youtrack.jetbrains.com/issue/KT-65771) K2: "IndexOutOfBoundsException: Cannot pop operand off an empty stack" when calling method imported using typealias as callable qualifier - [`KT-67502`](https://youtrack.jetbrains.com/issue/KT-67502) K2: "property must be initialized or be abstract" with try-finally in secondary constructor - [`KT-67456`](https://youtrack.jetbrains.com/issue/KT-67456) K2: "property must be initialized or be abstract" depending on constructor declaration order - [`KT-63524`](https://youtrack.jetbrains.com/issue/KT-63524) K2: "Not enough information to infer type argument" - [`KT-67628`](https://youtrack.jetbrains.com/issue/KT-67628) K2: "IllegalArgumentException: Expected nullable type" — alias of nullable type analyzed as non-nullable in type parameter - [`KT-67625`](https://youtrack.jetbrains.com/issue/KT-67625) K2: Array aliases can't be used as vararg values - [`KT-67624`](https://youtrack.jetbrains.com/issue/KT-67624) K2: False negative "The feature "break continue in inline lambdas" is experimental and should be enabled explicitly" in elvis operator - [`KT-61787`](https://youtrack.jetbrains.com/issue/KT-61787) K2 doesn't report warnings for some Gradle tasks - [`KT-62550`](https://youtrack.jetbrains.com/issue/KT-62550) K2: Different JVM signature of lambda with `Unit` return type - [`KT-65120`](https://youtrack.jetbrains.com/issue/KT-65120) K2 Consider turn into platform checkers ones which checks for objC - [`KT-60271`](https://youtrack.jetbrains.com/issue/KT-60271) K2: origins are not set on compare operators - [`KT-28695`](https://youtrack.jetbrains.com/issue/KT-28695) Compiler does not detect uninitialized property in lambda - [`KT-67593`](https://youtrack.jetbrains.com/issue/KT-67593) K2: false negative SUPER\_CALL\_WITH\_DEFAULT\_PARAMETERS - [`KT-67484`](https://youtrack.jetbrains.com/issue/KT-67484) K2: FIR2IR generates incorrect access to f/o of lateinit internal var - [`KT-47382`](https://youtrack.jetbrains.com/issue/KT-47382) JVM / IR: "AssertionError: Unbound private symbol IrFieldSymbolImpl" caused by string template in constructor and extension property - [`KT-67581`](https://youtrack.jetbrains.com/issue/KT-67581) K2: Compiler fails on actualizing abstract class with sealed Java class via type alias - [`KT-49404`](https://youtrack.jetbrains.com/issue/KT-49404) Fix type unsoundness for contravariant captured type based on Java class - [`KT-22379`](https://youtrack.jetbrains.com/issue/KT-22379) Condition of while-loop with break can produce unsound smartcast - [`KT-67021`](https://youtrack.jetbrains.com/issue/KT-67021) K2: Cannot find cached type parameter by FIR symbol: E of the owner: FirRegularClassSymbol Function - [`KT-67014`](https://youtrack.jetbrains.com/issue/KT-67014) K1/K2 handle when expression as annotation target differently - [`KT-67254`](https://youtrack.jetbrains.com/issue/KT-67254) K1/K2 both allow annotations on loops, assignments, array sets - [`KT-66960`](https://youtrack.jetbrains.com/issue/KT-66960) K2. KMP. False negative ` 'when' expression must be exhaustive` without sealed class inheritor from common source-set - [`KT-65578`](https://youtrack.jetbrains.com/issue/KT-65578) K2: implement a deprecation warning for KT-57014 (wrong nullability returned from JDK SAM constructor lambda) - [`KT-63466`](https://youtrack.jetbrains.com/issue/KT-63466) `@NonNull` on a type-variable usage doesn't take precedence over a wildcard type argument - [`KT-56134`](https://youtrack.jetbrains.com/issue/KT-56134) K2: NEW\_INFERENCE\_NO\_INFORMATION\_FOR\_PARAMETER diagnostic is reported for the wrong symbol - [`KT-66196`](https://youtrack.jetbrains.com/issue/KT-66196) Convert INFERRED\_TYPE\_VARIABLE\_INTO\_EMPTY\_INTERSECTION\_ERROR to warning - [`KT-66793`](https://youtrack.jetbrains.com/issue/KT-66793) K2: "assigning single elements to varargs in named form is prohibited." caused by varargs supplied from java with elvis operator - [`KT-59872`](https://youtrack.jetbrains.com/issue/KT-59872) K2: Disappeared TYPE\_MISMATCH - [`KT-67192`](https://youtrack.jetbrains.com/issue/KT-67192) K2: Disappeared TYPE\_MISMATCH \[3] - [`KT-63319`](https://youtrack.jetbrains.com/issue/KT-63319) K1/K2: inconsistent behavior around NullMarked and type parameter based types - [`KT-59882`](https://youtrack.jetbrains.com/issue/KT-59882) K2: Disappeared CANNOT\_INFER\_PARAMETER\_TYPE - [`KT-67191`](https://youtrack.jetbrains.com/issue/KT-67191) K2: Disappeared TYPE\_MISMATCH \[4] - [`KT-53752`](https://youtrack.jetbrains.com/issue/KT-53752) Missed subtyping check for an intersection type - [`KT-52628`](https://youtrack.jetbrains.com/issue/KT-52628) Deprecate SAM constructor usages which require OptIn without annotation - [`KT-54066`](https://youtrack.jetbrains.com/issue/KT-54066) Deprecate upper bound violation in typealias constructors - [`KT-64860`](https://youtrack.jetbrains.com/issue/KT-64860) K2: Consider using different ConstraintPosition when fixing variables for PCLA - [`KT-67189`](https://youtrack.jetbrains.com/issue/KT-67189) K2: Disappeared TYPE\_MISMATCH \[5] - [`KT-67551`](https://youtrack.jetbrains.com/issue/KT-67551) K2: No wrong annotation target error for `for` statement - [`KT-67374`](https://youtrack.jetbrains.com/issue/KT-67374) K2: Object is not smartcasted to type parameter type - [`KT-67264`](https://youtrack.jetbrains.com/issue/KT-67264) K2: "argument type mismatch" with suspend lambda and java wildcard - [`KT-63257`](https://youtrack.jetbrains.com/issue/KT-63257) K2: FIR2IR inserts incorrect implicit cast for smartcasted variable - [`KT-66902`](https://youtrack.jetbrains.com/issue/KT-66902) K2: "Named arguments are prohibited for non-Kotlin functions" with Java interop - [`KT-67311`](https://youtrack.jetbrains.com/issue/KT-67311) K2: "Argument type mismatch" caused by lambda type when using named arguments - [`KT-57011`](https://youtrack.jetbrains.com/issue/KT-57011) Make real type of a destructuring variable consistent with explicit type when specified - [`KT-62043`](https://youtrack.jetbrains.com/issue/KT-62043) K2: Fix FirCompileKotlinAgainstCustomBinariesTest.testRawTypes - [`KT-66256`](https://youtrack.jetbrains.com/issue/KT-66256) K2: compiler FIR2IR crash on SAM-conversion to value parameter of in-projected type - [`KT-67124`](https://youtrack.jetbrains.com/issue/KT-67124) "Unstable inference behaviour with multiple generic lambdas" compilation error - [`KT-59791`](https://youtrack.jetbrains.com/issue/KT-59791) K2: Implement partially constrained lambda analysis - [`KT-66743`](https://youtrack.jetbrains.com/issue/KT-66743) Lambda receivers and anonymous function parameters of inaccessible types are allowed - [`KT-67315`](https://youtrack.jetbrains.com/issue/KT-67315) K2: Some default imports are not excluded - [`KT-56126`](https://youtrack.jetbrains.com/issue/KT-56126) Avoid using descriptors at JvmPlatformAnalyzerServices::computePlatformSpecificDefaultImports - [`KT-66513`](https://youtrack.jetbrains.com/issue/KT-66513) K2: Suppressing OPT\_IN\_USAGE\_ERROR is now a warning in K2, preventing safe code gen compatible with -Werror - [`KT-67233`](https://youtrack.jetbrains.com/issue/KT-67233) False negative UNSAFE\_CALL with type check after null coalescing with 'OR' - [`KT-52802`](https://youtrack.jetbrains.com/issue/KT-52802) Report ambiguity resolving between property/field and enum entry - [`KT-64920`](https://youtrack.jetbrains.com/issue/KT-64920) Json.encodeToString yields different results depending on whether typealias is used - [`KT-58260`](https://youtrack.jetbrains.com/issue/KT-58260) Make invoke convention work consistently with expected desugaring - [`KT-67314`](https://youtrack.jetbrains.com/issue/KT-67314) PCLA works inconsistently with smart-cast related CS forks - [`KT-66797`](https://youtrack.jetbrains.com/issue/KT-66797) K2 JS: Primary constructor property annotation with target VALUE\_PARAMETER is put on property instead of parameter - [`KT-55179`](https://youtrack.jetbrains.com/issue/KT-55179) False negative PRIVATE\_CLASS\_MEMBER\_FROM\_INLINE on calling private class companion object member from internal inline function - [`KT-54663`](https://youtrack.jetbrains.com/issue/KT-54663) Projected types don't take into account in-place not null types - [`KT-58191`](https://youtrack.jetbrains.com/issue/KT-58191) K2: capturing closures successors that are already resolved (thanks to backward edges) must be taken into account for allowing smart casts - [`KT-67144`](https://youtrack.jetbrains.com/issue/KT-67144) K2: potential NPE when assigning to unstable vars - [`KT-66971`](https://youtrack.jetbrains.com/issue/KT-66971) K2: missing SMARTCAST\_IMPOSSIBLE on open val declared in another module - [`KT-66904`](https://youtrack.jetbrains.com/issue/KT-66904) K2: possible NPE when reassigning captured variables - [`KT-57031`](https://youtrack.jetbrains.com/issue/KT-57031) operator assignment, increment/decrement should be considered as variable reassigning in terms of DFA. green in K1 -> red in K2 for unsound code - [`KT-67212`](https://youtrack.jetbrains.com/issue/KT-67212) K2: "Failed to find functional supertype for class org.jetbrains.kotlin.fir.types.ConeCapturedType" - [`KT-67283`](https://youtrack.jetbrains.com/issue/KT-67283) K2: No SAM conversion for fun interface with abstract toString - [`KT-67318`](https://youtrack.jetbrains.com/issue/KT-67318) Compiler fails with OutOfMemoryError on combination of PCLA+smart cast - [`KT-66956`](https://youtrack.jetbrains.com/issue/KT-66956) K2: false negative CONST\_VAL\_WITH\_NON\_CONST\_INITIALIZER for inc/dec operators - [`KT-64233`](https://youtrack.jetbrains.com/issue/KT-64233) K2: K1/K2: ensure JVM ABI consistency for quality gates projects - [`KT-63535`](https://youtrack.jetbrains.com/issue/KT-63535) K2: Apply DFA implications for nullable Nothing to both sides - [`KT-63413`](https://youtrack.jetbrains.com/issue/KT-63413) K2 / kotlinx-atomicfu: "IllegalStateException: Expected some types" - [`KT-62931`](https://youtrack.jetbrains.com/issue/KT-62931) K2: extra class files for `@OptionalExpectation` marked annotations - [`KT-34307`](https://youtrack.jetbrains.com/issue/KT-34307) Confusing error message on lambda return type mismatch - [`KT-62151`](https://youtrack.jetbrains.com/issue/KT-62151) K2. overload resolution ambiguity for calls of Java record compact constructors - [`KT-60732`](https://youtrack.jetbrains.com/issue/KT-60732) K2 Scripting: TeamCity DSL test - [`KT-65062`](https://youtrack.jetbrains.com/issue/KT-65062) K2: build kotlinx.collections.immutable and pass to CI - [`KT-59467`](https://youtrack.jetbrains.com/issue/KT-59467) K2: build toolbox-enterprise - [`KT-67205`](https://youtrack.jetbrains.com/issue/KT-67205) K2: can't deserialize annotation with local class as argument - [`KT-52175`](https://youtrack.jetbrains.com/issue/KT-52175) K2: WRONG\_ANNOTATION\_TARGET for annotation that used inside if - [`KT-65449`](https://youtrack.jetbrains.com/issue/KT-65449) K2: build KAPT user project and pass it to CI - [`KT-61384`](https://youtrack.jetbrains.com/issue/KT-61384) IrFakeOverrideBuilder incorrectly checks visibility for friend modules - [`KT-67142`](https://youtrack.jetbrains.com/issue/KT-67142) K2: IrFakeOverrideBuilder: AbstractMethodError on raw type argument in a Java superclass - [`KT-65105`](https://youtrack.jetbrains.com/issue/KT-65105) K2 / Native: Member overrides different '`@Throws`' filter - [`KT-62570`](https://youtrack.jetbrains.com/issue/KT-62570) IncompatibleClassChangeError due to overriding final method - [`KT-57812`](https://youtrack.jetbrains.com/issue/KT-57812) K2: support serialization of type annotation's arguments - [`KT-67190`](https://youtrack.jetbrains.com/issue/KT-67190) K2: Disappeared TYPE\_MISMATCH \[2] - [`KT-56683`](https://youtrack.jetbrains.com/issue/KT-56683) K2: No control flow analysis for top-level properties - [`KT-67188`](https://youtrack.jetbrains.com/issue/KT-67188) K2: Disappeared TYPE\_MISMATCH \[6] - [`KT-62063`](https://youtrack.jetbrains.com/issue/KT-62063) K2: drop pre-release flag in 2.0-RC - [`KT-67187`](https://youtrack.jetbrains.com/issue/KT-67187) K2: Disappeared TYPE\_MISMATCH \[1] - [`KT-66909`](https://youtrack.jetbrains.com/issue/KT-66909) K2: Implement a diagnostic for returning null from a lambda with expected return type Unit! - [`KT-66534`](https://youtrack.jetbrains.com/issue/KT-66534) False positive ASSIGNMENT\_TYPE\_MISMATCH in lambdas with expected return type Unit! - [`KT-63381`](https://youtrack.jetbrains.com/issue/KT-63381) IrFakeOverrideBuilder: PublishedApi affects overridability of internal members - [`KT-63836`](https://youtrack.jetbrains.com/issue/KT-63836) K2: No deprecation error message in common metadata compilation - [`KT-57618`](https://youtrack.jetbrains.com/issue/KT-57618) K2: complex deprecation messages are not printed in the error - [`KT-59856`](https://youtrack.jetbrains.com/issue/KT-59856) K2: Check ConeDiagnostics that are not mapped to KtDiagnostics - [`KT-57502`](https://youtrack.jetbrains.com/issue/KT-57502) K2: Smart casts should be forbidden if variable that remembers the smart cast is declared by delegation - [`KT-63967`](https://youtrack.jetbrains.com/issue/KT-63967) K2: Missing getterSignature in metadata for script variables - [`KT-59372`](https://youtrack.jetbrains.com/issue/KT-59372) K2: Missing SELF\_CALL\_IN\_NESTED\_OBJECT\_CONSTRUCTOR\_ERROR - [`KT-60526`](https://youtrack.jetbrains.com/issue/KT-60526) K2: Fix the TODO in `convertToIr.kt` - [`KT-67090`](https://youtrack.jetbrains.com/issue/KT-67090) K2: Exception from metadata compilation when compiling class with annotations from dependencies - [`KT-59479`](https://youtrack.jetbrains.com/issue/KT-59479) K2: build KorGE - [`KT-64502`](https://youtrack.jetbrains.com/issue/KT-64502) K2: Internal error on calling function before declaration - [`KT-62560`](https://youtrack.jetbrains.com/issue/KT-62560) K2: KAPT4: annotation `@ReplaceWith` is missing a default value for the element 'imports' - [`KT-67027`](https://youtrack.jetbrains.com/issue/KT-67027) K2: Review all use-sites of annotation arguments utilities - [`KT-65012`](https://youtrack.jetbrains.com/issue/KT-65012) IR Evaluator: `NoSuchFieldException` when evaluating protected/private fields of superclasses - [`KT-66953`](https://youtrack.jetbrains.com/issue/KT-66953) K2: toByte() call on Char leads to ClassCastException for klib backends - [`KT-60096`](https://youtrack.jetbrains.com/issue/KT-60096) K2: Introduced API\_NOT\_AVAILABLE - [`KT-59484`](https://youtrack.jetbrains.com/issue/KT-59484) K2: build trustwallet sample - [`KT-64151`](https://youtrack.jetbrains.com/issue/KT-64151) K2: consider implementing FIR-level constant evaluation - [`KT-65787`](https://youtrack.jetbrains.com/issue/KT-65787) K2: "KotlinIllegalArgumentExceptionWithAttachments: Expected FirResolvedTypeRef with ConeKotlinType" caused by passing lambda expression with multiple labels to function - [`KT-53629`](https://youtrack.jetbrains.com/issue/KT-53629) K2: forbid multiple labels per statement - [`KT-65255`](https://youtrack.jetbrains.com/issue/KT-65255) K2 / KJS: "IllegalArgumentException: Candidate is not successful, but system has no contradiction" - [`KT-65195`](https://youtrack.jetbrains.com/issue/KT-65195) K2: Unexpected exception when executing dynamic array element inc/dec - [`KT-63416`](https://youtrack.jetbrains.com/issue/KT-63416) K2 / Contracts: False positive "Leaked in-place lambda" warning caused by suspend lambda with callsInPlace contract - [`KT-66717`](https://youtrack.jetbrains.com/issue/KT-66717) Incorrect diagnostics around intersection property overrides - [`KT-63540`](https://youtrack.jetbrains.com/issue/KT-63540) Restrict the CONFLICTING\_OVERLOADS + DeprecatedLevel.HIDDEN ignore to final callables - [`KT-56587`](https://youtrack.jetbrains.com/issue/KT-56587) There are no warnings in some cases when Enum.entries is shadowed - [`KT-65111`](https://youtrack.jetbrains.com/issue/KT-65111) K2: Java star imports don't work in KJK interdependencies - [`KT-63709`](https://youtrack.jetbrains.com/issue/KT-63709) K2: Argument smartcasting impacting receiver and call resolution for implicit invoke - [`KT-63530`](https://youtrack.jetbrains.com/issue/KT-63530) K2: Disable passing data flow info from in-place lambdas - [`KT-65377`](https://youtrack.jetbrains.com/issue/KT-65377) K2: "Argument type mismatch" caused by approximated captured type argument of generic type - [`KT-59400`](https://youtrack.jetbrains.com/issue/KT-59400) K2: Missing CANNOT\_INFER\_VISIBILITY - [`KT-62305`](https://youtrack.jetbrains.com/issue/KT-62305) K2: Missing Fir metadata serialization support for scripts - [`KT-64534`](https://youtrack.jetbrains.com/issue/KT-64534) K2: org.jetbrains.kotlin.util.FileAnalysisException: Somewhere in file - [`KT-57555`](https://youtrack.jetbrains.com/issue/KT-57555) \[LC] Forbid deferred initialization of open properties with backing field - [`KT-65776`](https://youtrack.jetbrains.com/issue/KT-65776) \[LC] K2 breaks `false && ...` and `false || ...` - [`KT-64641`](https://youtrack.jetbrains.com/issue/KT-64641) K2: Change in inference of supertype of function types with receiver - [`KT-65649`](https://youtrack.jetbrains.com/issue/KT-65649) K2: IR has incorrect origins for some inplace updating operators - [`KT-64295`](https://youtrack.jetbrains.com/issue/KT-64295) Forbid recursive resolve in case of potential ambiguity on upper tower level - [`KT-62866`](https://youtrack.jetbrains.com/issue/KT-62866) K2: Change qualifier resolution behavior when companion object is preferred against static scope - [`KT-55446`](https://youtrack.jetbrains.com/issue/KT-55446) Change impact of *private-to-this* visibility to resolution - [`KT-64255`](https://youtrack.jetbrains.com/issue/KT-64255) Forbid accessing internal setter from a derived class in another module - [`KT-64966`](https://youtrack.jetbrains.com/issue/KT-64966) Forbid generic delegating constructor calls with wrong type for generic parameter - [`KT-63389`](https://youtrack.jetbrains.com/issue/KT-63389) K2: `WRONG_ANNOTATION_TARGET` is reported on incompatible annotations of a type wrapped into `()?` - [`KT-66748`](https://youtrack.jetbrains.com/issue/KT-66748) K2: False-positive AMBIGUOUS\_SUPER in toString - [`KT-67013`](https://youtrack.jetbrains.com/issue/KT-67013) K2: ClassCastException: class FirConstructorSymbol cannot be cast to class FirNamedFunctionSymbol - [`KT-64872`](https://youtrack.jetbrains.com/issue/KT-64872) K2: do-while condition able to access uninitialized variable - [`KT-66350`](https://youtrack.jetbrains.com/issue/KT-66350) K2: "IllegalStateException: Unsupported compile-time value STRING\_CONCATENATION" when evaluating an annotation argument string - [`KT-61798`](https://youtrack.jetbrains.com/issue/KT-61798) K2 incorrectly calculates modality of property accessors - [`KT-65035`](https://youtrack.jetbrains.com/issue/KT-65035) IrFakeOverrideBuilder: AbstractMethodError on inheritance from Java subclass of CharSequence with inherited implementations - [`KT-61579`](https://youtrack.jetbrains.com/issue/KT-61579) K2: Inconsistent reporting `UNINITIALIZED_VARIABLE` for top-level properties - [`KT-66730`](https://youtrack.jetbrains.com/issue/KT-66730) K2: False positive RETURN\_TYPE\_MISMATCH in return statement in SAM constructor - [`KT-66570`](https://youtrack.jetbrains.com/issue/KT-66570) Generic wildcard upper bound inference error - [`KT-65272`](https://youtrack.jetbrains.com/issue/KT-65272) K2: invoke operator applies "restricted suspending call" error differently than K1 - [`KT-66148`](https://youtrack.jetbrains.com/issue/KT-66148) K2. Sources of receivers updated twice because of PCLA - [`KT-62525`](https://youtrack.jetbrains.com/issue/KT-62525) K2: IllegalStateException: Can't find KotlinType in IrErrorType: IrErrorType(null) - [`KT-64266`](https://youtrack.jetbrains.com/issue/KT-64266) K2: don't report MISSING\_DEPENDENCY\_CLASS on lambda parameter for non-generic types - [`KT-65300`](https://youtrack.jetbrains.com/issue/KT-65300) K2: this-expressions in initializers and local declarations don't introduce type information to either BI or PCLA - [`KT-66463`](https://youtrack.jetbrains.com/issue/KT-66463) K2: false positive ACCIDENTAL\_OVERRIDE\_CLASH\_BY\_JVM\_SIGNATURE - [`KT-62356`](https://youtrack.jetbrains.com/issue/KT-62356) Prohibit using property+invoke for iterator - [`KT-63631`](https://youtrack.jetbrains.com/issue/KT-63631) K2: constant value UByte.MAX\_VALUE is incorrectly deserialized from metadata - [`KT-65386`](https://youtrack.jetbrains.com/issue/KT-65386) K2: Different signature of invoke for Unit lambda - [`KT-60574`](https://youtrack.jetbrains.com/issue/KT-60574) K2: generated IR for `suspendCoroutineUninterceptedOrReturn` is different from K1 (K2 uses Any? instead of Unit) - [`KT-66512`](https://youtrack.jetbrains.com/issue/KT-66512) K2: Incorrect diagnostic in lambda whose expected type is a type alias to Unit - [`KT-66279`](https://youtrack.jetbrains.com/issue/KT-66279) K2: False positive INITIALIZER\_TYPE\_MISMATCH with `return Unit` in a lambda with the expected type `() -> Unit` - [`KT-66277`](https://youtrack.jetbrains.com/issue/KT-66277) K2: False negative RETURN\_TYPE\_MISMATCH with empty return in lambda assigned to a property - [`KT-66654`](https://youtrack.jetbrains.com/issue/KT-66654) K2 FIR resolution: Mismatch between actual type and expected type for a value parameter when the parameter type is a function type with special function kind - [`KT-66638`](https://youtrack.jetbrains.com/issue/KT-66638) Cannot access properties of a generic type with wildcards - [`KT-66690`](https://youtrack.jetbrains.com/issue/KT-66690) K2: don't report MISSING\_DEPENDENCY\_CLASS on expression without errors for generic type arguments - [`KT-66767`](https://youtrack.jetbrains.com/issue/KT-66767) K2: Destructuring declaration inside initializer failure - [`KT-63695`](https://youtrack.jetbrains.com/issue/KT-63695) JVM: Don't use plugin extensions when compiling code fragment - [`KT-65727`](https://youtrack.jetbrains.com/issue/KT-65727) K2: add proper package for properties generated from destructuring declarations - [`KT-64854`](https://youtrack.jetbrains.com/issue/KT-64854) K2: Trying to access private field on runtime with contracts - [`KT-65388`](https://youtrack.jetbrains.com/issue/KT-65388) IrFakeOverrideBuilder - custom annotation is available in fake getter/setter - [`KT-66595`](https://youtrack.jetbrains.com/issue/KT-66595) K2: compiler FIR checking crash on destructuring declarations calling hidden componentN declarations - [`KT-62129`](https://youtrack.jetbrains.com/issue/KT-62129) K2: Verification error on calling an extension from an env with 2+ context receivers - [`KT-41607`](https://youtrack.jetbrains.com/issue/KT-41607) NI: UNSAFE\_CALL caused by try catch block assigning to a nullable variable - [`KT-63932`](https://youtrack.jetbrains.com/issue/KT-63932) K2/Native codegen test failures around builder inference - [`KT-66352`](https://youtrack.jetbrains.com/issue/KT-66352) K2: difference between LL FIR and FIR for componentN functions - [`KT-66686`](https://youtrack.jetbrains.com/issue/KT-66686) K2 Script: Unresolved reference of script-specific entities on out-of-order resolve - [`KT-65523`](https://youtrack.jetbrains.com/issue/KT-65523) K2: add proper package for result$$ property - [`KT-66699`](https://youtrack.jetbrains.com/issue/KT-66699) Restore HostManager ABI - [`KT-60533`](https://youtrack.jetbrains.com/issue/KT-60533) Inliner incorrectly captures non-null value as null in coroutines - [`KT-57925`](https://youtrack.jetbrains.com/issue/KT-57925) K2: Consider removing FirEmptyContractDescription - [`KT-61893`](https://youtrack.jetbrains.com/issue/KT-61893) K2: should not resolve to Java function with Kotlin hidden-level deprecation - [`KT-59669`](https://youtrack.jetbrains.com/issue/KT-59669) K2: Explore assignments in in-place lambdas - [`KT-66271`](https://youtrack.jetbrains.com/issue/KT-66271) Fir: Deserialize classFile, functionFile and propertyFile from KlibMetadataProtoBuf - [`KT-57957`](https://youtrack.jetbrains.com/issue/KT-57957) K2: Symbol providers are frequently queried with error-named class IDs - [`KT-66046`](https://youtrack.jetbrains.com/issue/KT-66046) K2: false negative CANNOT\_WEAKEN\_ACCESS\_PRIVILEGE on property - [`KT-66677`](https://youtrack.jetbrains.com/issue/KT-66677) K2: OVERRIDE\_DEPRECATION isn't reported for WEAKLY\_HIDDEN method toArray() - [`KT-62793`](https://youtrack.jetbrains.com/issue/KT-62793) K2: slightly different bytecode of suspend conversions - [`KT-57244`](https://youtrack.jetbrains.com/issue/KT-57244) K2: slightly different naming scheme for suspend conversion adapters - [`KT-60256`](https://youtrack.jetbrains.com/issue/KT-60256) K2: types are not substituted in suspend conversion - [`KT-66673`](https://youtrack.jetbrains.com/issue/KT-66673) K2/JS: FirJsInheritanceClassChecker doesn't expand type aliases to supertypes - [`KT-66475`](https://youtrack.jetbrains.com/issue/KT-66475) K2/KMP/Wasm: report WRONG\_JS\_INTEROP\_TYPE from a platform checker - [`KT-66474`](https://youtrack.jetbrains.com/issue/KT-66474) K2/KMP/JS: report EXTERNAL\_TYPE\_EXTENDS\_NON\_EXTERNAL\_TYPE from a platform checker - [`KT-66473`](https://youtrack.jetbrains.com/issue/KT-66473) K2/Wasm: FirWasmExternalInheritanceChecker doesn't expand type aliases - [`KT-64407`](https://youtrack.jetbrains.com/issue/KT-64407) Implement WriteSignatureTestGenerated for K2 - [`KT-64438`](https://youtrack.jetbrains.com/issue/KT-64438) K2: Port CodegenTestCase to K2 - [`KT-64404`](https://youtrack.jetbrains.com/issue/KT-64404) Implement WriteFlagsTestGenerated for K2 - [`KT-66491`](https://youtrack.jetbrains.com/issue/KT-66491) K2 / KJS: "Name contains illegal characters." caused by backticks in import - [`KT-66275`](https://youtrack.jetbrains.com/issue/KT-66275) K2: false-positive "Java module does not depend on module" error on access to inherited member from twice-transitive dependency via class from transitive dependency - [`KT-65801`](https://youtrack.jetbrains.com/issue/KT-65801) IrFakeOverrideBuilder - visibility is lost for setter in KJK hierarchy - [`KT-65576`](https://youtrack.jetbrains.com/issue/KT-65576) K2: Incorrect resolution of variable+invoke when the property type is not computed - [`KT-58575`](https://youtrack.jetbrains.com/issue/KT-58575) Private Kotlin property prevents use of Java get- and set-methods from Java-Kotlin-Java hierarchy - [`KT-61282`](https://youtrack.jetbrains.com/issue/KT-61282) K2: Incorrect overridden function for `java.nio.CharBuffer.get` - [`KT-65464`](https://youtrack.jetbrains.com/issue/KT-65464) K2: False positive UNRESOLVED\_REFERENCE on extension property call defined in KJK hierarchy - [`KT-59470`](https://youtrack.jetbrains.com/issue/KT-59470) K2: build KaMPKit - [`KT-60510`](https://youtrack.jetbrains.com/issue/KT-60510) Smartcast to functional type does not work in when exprssion - [`KT-59677`](https://youtrack.jetbrains.com/issue/KT-59677) K2: Report diagnostics about missing receiver for delegated constructor call to inner class - [`KT-65183`](https://youtrack.jetbrains.com/issue/KT-65183) K2: Remove workaround for `@OnlyInputTypes` and captured types with recursive supertypes from inference - [`KT-66120`](https://youtrack.jetbrains.com/issue/KT-66120) IrFakeOverrideBuilder: wrong return type in intersection with 3 classes - [`KT-65939`](https://youtrack.jetbrains.com/issue/KT-65939) IrFakeOverrideBuilder - nullability annotation is lost in intersection without annotation - [`KT-59473`](https://youtrack.jetbrains.com/issue/KT-59473) K2: build firebase-kotlin-sdk - [`KT-66356`](https://youtrack.jetbrains.com/issue/KT-66356) K2: type mismatch error when generic type with inaccessible generic type as type argument is produced and consumed by declarations from dependencies - [`KT-65193`](https://youtrack.jetbrains.com/issue/KT-65193) K2: "JAVA\_TYPE\_MISMATCH" caused by MutableList - [`KT-66636`](https://youtrack.jetbrains.com/issue/KT-66636) NoSuchMethodError: 'void org.jetbrains.kotlin.ir.expressions.impl.IrCompositeImpl.<init> in the FLysto K2 QG - [`KT-63941`](https://youtrack.jetbrains.com/issue/KT-63941) K2: "IllegalStateException: Unsupported compile-time value STRING\_CONCATENATION" caused by class reference in string expression as annotation parameter - [`KT-65704`](https://youtrack.jetbrains.com/issue/KT-65704) K2: `computeCommonSuperType` of flexible type with recursive captured type argument produces giant multi-level-deep type - [`KT-65410`](https://youtrack.jetbrains.com/issue/KT-65410) K2: ABSTRACT\_CLASS\_MEMBER\_NOT\_IMPLEMENTED for 'removeAt' in KJK hierarchy - [`KT-65184`](https://youtrack.jetbrains.com/issue/KT-65184) K2: disappeared TYPE\_MISMATCH for java collections - [`KT-66392`](https://youtrack.jetbrains.com/issue/KT-66392) K2: Exception in KJK hierarchy with implicit types - [`KT-66551`](https://youtrack.jetbrains.com/issue/KT-66551) Revert temporary commits after KT-62063 and bootstrapping - [`KT-65218`](https://youtrack.jetbrains.com/issue/KT-65218) FIR LL and DiagnosticFE10 tests start to fail in case of adding any new declaration into stdlib commonMain - [`KT-66552`](https://youtrack.jetbrains.com/issue/KT-66552) K2: build of intellij crashes the compiler - [`KT-63746`](https://youtrack.jetbrains.com/issue/KT-63746) K2: JSpecify: If a class has a `@Nullable` type-parameter bound, Kotlin should still treat unbounded wildcards like platform types - [`KT-66504`](https://youtrack.jetbrains.com/issue/KT-66504) K2: plusAssign operator call is resolved differently than function call - [`KT-48515`](https://youtrack.jetbrains.com/issue/KT-48515) JSpecify: If a class has a `@Nullable` type-parameter bound, Kotlin should still treat unbounded wildcards like platform types - [`KT-57588`](https://youtrack.jetbrains.com/issue/KT-57588) K2/Native: False positive '"CONFLICTING\_OVERLOADS", "PARAMETER\_NAME\_CHANGED\_ON\_OVERRIDE" on overriding objc methods - [`KT-58892`](https://youtrack.jetbrains.com/issue/KT-58892) K2: Parcelize doesn't work in common code when expect annotation is actualized with typealias to `@Parcelize` - [`KT-65882`](https://youtrack.jetbrains.com/issue/KT-65882) K2: "KotlinNothingValueException" caused by unsafe cast and Nothing::class - [`KT-66124`](https://youtrack.jetbrains.com/issue/KT-66124) K2: Remove FirLambdaArgumentExpression and FirNamedArgumentExpression after resolution - [`KT-65959`](https://youtrack.jetbrains.com/issue/KT-65959) K2: Incorrect warnings about inline function impact - [`KT-64994`](https://youtrack.jetbrains.com/issue/KT-64994) K2: `@Composable` lambda type is not resolved from other modules - [`KT-66048`](https://youtrack.jetbrains.com/issue/KT-66048) K2: property becomes nullable in KJK hierarchy if base declaration has implicit return type - [`KT-47843`](https://youtrack.jetbrains.com/issue/KT-47843) No error reported on assigning "continue" to a companion object - [`KT-47530`](https://youtrack.jetbrains.com/issue/KT-47530) NI: Unexpected TYPE\_MISMATCH when combining nested conditional and contravariant type argument - [`KT-49583`](https://youtrack.jetbrains.com/issue/KT-49583) NI: NullPointerException on compiling anonymous function returning a method reference - [`KT-42782`](https://youtrack.jetbrains.com/issue/KT-42782) NI: Smart casting for generic type doesn't work if the variable is already smart cast - [`KT-38031`](https://youtrack.jetbrains.com/issue/KT-38031) FIR: Discrepancy in call resolution for qualifiers with old FE - [`KT-65789`](https://youtrack.jetbrains.com/issue/KT-65789) K1/K2: Resolve change in constructor/top-level function ambiguity - [`KT-66150`](https://youtrack.jetbrains.com/issue/KT-66150) K2: expects type argument in super qualifier - [`KT-60971`](https://youtrack.jetbrains.com/issue/KT-60971) Incorrect "cannot inline bytecode built with JVM target ..." on property setter if only getter is inline - [`KT-61514`](https://youtrack.jetbrains.com/issue/KT-61514) K2: Build fake overrides using IR during Fir2IR - [`KT-65584`](https://youtrack.jetbrains.com/issue/KT-65584) K2: "Duplicate parameter name in a function type" - [`KT-50008`](https://youtrack.jetbrains.com/issue/KT-50008) JSpecify `@Nullable` annotation on type-parameter bound prevents type-variable usages from being platform types - [`KT-37000`](https://youtrack.jetbrains.com/issue/KT-37000) IndexOutOfBoundsException from TypeResolver on typealias with cyclic references - [`KT-56988`](https://youtrack.jetbrains.com/issue/KT-56988) CFG, smart casts: red in K1 -> green in K2 for invalid code - [`KT-62118`](https://youtrack.jetbrains.com/issue/KT-62118) FIR: "HashMap.entry" has invalid enhanced type - [`KT-64840`](https://youtrack.jetbrains.com/issue/KT-64840) K2: Bare type are not allowed for TV based values during PCLA - [`KT-65415`](https://youtrack.jetbrains.com/issue/KT-65415) K2: Stdlib K2 build error: IrConstructorSymbolImpl is already bound - [`KT-66449`](https://youtrack.jetbrains.com/issue/KT-66449) Make DiagnosticSuppressor a project-level extension - [`KT-66411`](https://youtrack.jetbrains.com/issue/KT-66411) FIR: Real source on fake block around assignment expression in the "when" branch affects resolve in K2 Analysis API and IDE - [`KT-65249`](https://youtrack.jetbrains.com/issue/KT-65249) K2: False positive modality is different for native compilation - [`KT-65982`](https://youtrack.jetbrains.com/issue/KT-65982) K2 Scripts cannot disambiguate declarations imported from default and explicit imports - [`KT-65677`](https://youtrack.jetbrains.com/issue/KT-65677) K2: Unable to resolve parent class from companion object - [`KT-47310`](https://youtrack.jetbrains.com/issue/KT-47310) Change qualifier resolution behavior when companion property is preferred against enum entry - [`KT-41034`](https://youtrack.jetbrains.com/issue/KT-41034) K2: Change evaluation semantics for combination of safe calls and convention operators - [`KT-63529`](https://youtrack.jetbrains.com/issue/KT-63529) K2: Compiler does not detect tailrec call with nullable type - [`KT-66441`](https://youtrack.jetbrains.com/issue/KT-66441) Remove symbol table from IR fake override builder in Fir2Ir - [`KT-64846`](https://youtrack.jetbrains.com/issue/KT-64846) K2: false negative CONFLICTING\_JVM\_DECLARATIONS on inheritance from Java collection subclass with a conflicting override - [`KT-62312`](https://youtrack.jetbrains.com/issue/KT-62312) \[K2/N] revert putting stdlib to the beginning of libraries list in the compiler - [`KT-58203`](https://youtrack.jetbrains.com/issue/KT-58203) K2: false-negative incompatible types error on is-check with unrelated type - [`KT-65722`](https://youtrack.jetbrains.com/issue/KT-65722) K2: Property reference refers to non-existent functions - [`KT-65878`](https://youtrack.jetbrains.com/issue/KT-65878) K2: "ClassCastException" when passing nun-suspend lambda to SAM constructor with named argument - [`KT-66379`](https://youtrack.jetbrains.com/issue/KT-66379) K2: No extra message in UPPER\_BOUND\_VIOLATED for cases with CapturedType - [`KT-59475`](https://youtrack.jetbrains.com/issue/KT-59475) K2: build nowinandroid - [`KT-65926`](https://youtrack.jetbrains.com/issue/KT-65926) K2: add tests for all fixed-in-k2 / not-reproducible-in-k2 unresolved issues - [`KT-59481`](https://youtrack.jetbrains.com/issue/KT-59481) K2: build aws-sdk-kotlin + smithy-kotlin - [`KT-65022`](https://youtrack.jetbrains.com/issue/KT-65022) K2: Compiler crashes when array literal is used in delegate expression - [`KT-62836`](https://youtrack.jetbrains.com/issue/KT-62836) K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImplWithoutSource - [`KT-64727`](https://youtrack.jetbrains.com/issue/KT-64727) K1: Closing bracket of object inside crossinline lambda or inside lambda in inline function is not hit on step-over - [`KT-64726`](https://youtrack.jetbrains.com/issue/KT-64726) K1: Cannot stop on closing bracket of crossinline lambda inside of another crossinline lambda - [`KT-64725`](https://youtrack.jetbrains.com/issue/KT-64725) K1: Cannot stop on closing bracket of lambda of inline-only function - [`KT-66272`](https://youtrack.jetbrains.com/issue/KT-66272) Could not load module <Error module> with a combination of type parameters - [`KT-66243`](https://youtrack.jetbrains.com/issue/KT-66243) Could not load module <Error module> in a builder inference with lambda with typed parameter - [`KT-66229`](https://youtrack.jetbrains.com/issue/KT-66229) Could not load module <Error module> in a builder inference with Map.Entry - [`KT-66313`](https://youtrack.jetbrains.com/issue/KT-66313) K2: declaration-order-dependent false-positive "recursive problem in type checker" error on `getX` declaration with implicit return type that calls `x` declaration via intermediate declaration in `getX`'s expression body - [`KT-61041`](https://youtrack.jetbrains.com/issue/KT-61041) K2: Consider getting rid of confusing shouldRunCompletion and shouldAvoidFullCompletion function in FirInferenceSession - [`KT-66267`](https://youtrack.jetbrains.com/issue/KT-66267) K2: generic function's type parameter is erased if present as type argument in type of callable reference to member of generic function's local class - [`KT-61448`](https://youtrack.jetbrains.com/issue/KT-61448) K2: Disappeared DEPRECATION in testWithModifiedMockJdk - [`KT-60106`](https://youtrack.jetbrains.com/issue/KT-60106) K2: Introduced REIFIED\_TYPE\_FORBIDDEN\_SUBSTITUTION - [`KT-58279`](https://youtrack.jetbrains.com/issue/KT-58279) K2. False-negative `Smart cast to is impossible, because is a public API property declared in different module` for Java static field - [`KT-61626`](https://youtrack.jetbrains.com/issue/KT-61626) K2: Module "com.soywiz.korlibs.kmem:kmem" has a reference to symbol korlibs.memory/Buffer|null\[1] - [`KT-57427`](https://youtrack.jetbrains.com/issue/KT-57427) Fix inconsistencies in name manglers that use different declaration representations - [`KT-66258`](https://youtrack.jetbrains.com/issue/KT-66258) K2: accessor-targeted `@Suppress` annotation is ignored on primary constructor property - [`KT-29559`](https://youtrack.jetbrains.com/issue/KT-29559) Smart Cast functionality doesn't behave in an expected way in all cases - [`KT-60777`](https://youtrack.jetbrains.com/issue/KT-60777) K2: missing INLINE\_FROM\_HIGHER\_PLATFORM - [`KT-66260`](https://youtrack.jetbrains.com/issue/KT-66260) K2: false-positive "abstract function in non-abstract class" error on abstract member function of open interface - [`KT-66067`](https://youtrack.jetbrains.com/issue/KT-66067) K2: different overrides are created in a complex hierarchy with raw types and upper-bounded type parameters - [`KT-65821`](https://youtrack.jetbrains.com/issue/KT-65821) K2: \[NONE\_APPLICABLE] None of the following functions is applicable: \[constructor(message: String?): Throwable, constructor(cause: Throwable?): Throwable, constructor(): Throwable, ...] - [`KT-66268`](https://youtrack.jetbrains.com/issue/KT-66268) K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirUserTypeRefImpl - [`KT-63563`](https://youtrack.jetbrains.com/issue/KT-63563) K2: False negative RETURN\_TYPE\_MISMATCH with empty return - [`KT-60797`](https://youtrack.jetbrains.com/issue/KT-60797) K2: implement JAVA\_MODULE\_DOES\_NOT\_EXPORT\_PACKAGE - [`KT-28159`](https://youtrack.jetbrains.com/issue/KT-28159) Smartcasts don't work with Nothing? values (Nothing? considered a null constant => an unstable value) - [`KT-28262`](https://youtrack.jetbrains.com/issue/KT-28262) Smartcasts for reference equality don't work if explicit true check is used - [`KT-66000`](https://youtrack.jetbrains.com/issue/KT-66000) K2: inherited inline getter has not been inlined - [`KT-66158`](https://youtrack.jetbrains.com/issue/KT-66158) K2: not nullable return type for upper-bounded kotlin type parameter in KJK hierarchy - [`KT-57268`](https://youtrack.jetbrains.com/issue/KT-57268) K2: extra methods `remove` and/or `getOrDefault` are generated for Map subclasses with JDK 1.6 in dependencies - [`KT-63577`](https://youtrack.jetbrains.com/issue/KT-63577) K2: false-positive "wrong number of type arguments" error on callable reference to member of generic function's local class - [`KT-62352`](https://youtrack.jetbrains.com/issue/KT-62352) jspecify NonNull annotation seems not supported - [`KT-65636`](https://youtrack.jetbrains.com/issue/KT-65636) PowerAssert: Negative contains operator not aligned correctly in K2 - [`KT-64271`](https://youtrack.jetbrains.com/issue/KT-64271) K2: Wrong overriddenSymbols for toString of data class - [`KT-62779`](https://youtrack.jetbrains.com/issue/KT-62779) K2: Difference in fake override generation - [`KT-61941`](https://youtrack.jetbrains.com/issue/KT-61941) K2: FIR2IR incorrectly generates f/o structure for complex java/kotlin hierarchies with remapped jvm declarations - [`KT-60283`](https://youtrack.jetbrains.com/issue/KT-60283) K2: fake override for java static method is not generated - [`KT-65095`](https://youtrack.jetbrains.com/issue/KT-65095) K2: no bridge generated for getOrDefault when inheriting from Java Map implementation - [`KT-57301`](https://youtrack.jetbrains.com/issue/KT-57301) K2: `getOrDefault` and bridges are not generated for certain Map subclasses - [`KT-50916`](https://youtrack.jetbrains.com/issue/KT-50916) K2: store resolved type inside ConeStubType after builder inference - [`KT-65857`](https://youtrack.jetbrains.com/issue/KT-65857) K2: java.lang.IllegalArgumentException: Unknown visibility: unknown - [`KT-66174`](https://youtrack.jetbrains.com/issue/KT-66174) -Xjdk-release 6 and 7 have a misleading error message - [`KT-66175`](https://youtrack.jetbrains.com/issue/KT-66175) Wrong supported options list for -jvm-target compiler option - [`KT-58814`](https://youtrack.jetbrains.com/issue/KT-58814) Too eager subtype inference in when expression - [`KT-65408`](https://youtrack.jetbrains.com/issue/KT-65408) K1: "There are still 2 unbound symbols after generation of IR module" caused by data object's `copy` function usage - [`KT-65844`](https://youtrack.jetbrains.com/issue/KT-65844) False Positive "This class can only be used as an annotation or as an argument to `@OptIn`" when passing as an array - [`KT-58697`](https://youtrack.jetbrains.com/issue/KT-58697) K2: Tests: Assert no dump files exist when dump directive isn't present - [`KT-63258`](https://youtrack.jetbrains.com/issue/KT-63258) NPE with function reference from within lambda during init - [`KT-60597`](https://youtrack.jetbrains.com/issue/KT-60597) K1: IllegalArgumentException: fromIndex(0) > toIndex(-1) when wrapping receiver with backticks - [`KT-33108`](https://youtrack.jetbrains.com/issue/KT-33108) USELESS\_CAST false positive for cast inside lambda - [`KT-58458`](https://youtrack.jetbrains.com/issue/KT-58458) K1: "java.lang.NullPointerException" with 'var equals' or 'val equals' as argument in when - [`KT-58447`](https://youtrack.jetbrains.com/issue/KT-58447) K1: "AssertionError: Recursion detected on input" with `@ParameterName` and extension - [`KT-41013`](https://youtrack.jetbrains.com/issue/KT-41013) OVERLOAD\_RESOLUTION\_AMBIGUITY for functions takes lambda: can not resolve it, but only named lambda parameter - [`KT-56032`](https://youtrack.jetbrains.com/issue/KT-56032) \[LC issue] Incorrect wrapping when passing java vararg method to inline function - [`KT-65588`](https://youtrack.jetbrains.com/issue/KT-65588) K2: typealias of primitive type in vararg causes ABI incompatibility - [`KT-23873`](https://youtrack.jetbrains.com/issue/KT-23873) Indexed access operator can cause false USELESS\_CAST warning - [`KT-31191`](https://youtrack.jetbrains.com/issue/KT-31191) Contract not smartcasting for extension functions in if-statement with multiple conditions - [`KT-28725`](https://youtrack.jetbrains.com/issue/KT-28725) ReenteringLazyValueComputationException during resolution & inference - [`KT-35429`](https://youtrack.jetbrains.com/issue/KT-35429) ReenteringLazyValueComputationException when accessing property with same name - [`KT-63826`](https://youtrack.jetbrains.com/issue/KT-63826) K2: expect for expect crashes the compiler - [`KT-25668`](https://youtrack.jetbrains.com/issue/KT-25668) False-positive error on restricted suspending function call with callable reference - [`KT-18055`](https://youtrack.jetbrains.com/issue/KT-18055) SMARTCAST\_IMPOSSIBLE on mutable data class variable with a read-only property - [`KT-15904`](https://youtrack.jetbrains.com/issue/KT-15904) Improve error message when type of generic extension call is inferred from receiver - [`KT-66186`](https://youtrack.jetbrains.com/issue/KT-66186) K1 diagnostics miss some reporting messages - [`KT-65101`](https://youtrack.jetbrains.com/issue/KT-65101) Generics behaving different when parenthesized - [`KT-63444`](https://youtrack.jetbrains.com/issue/KT-63444) TYPE\_MISMATCH caused by Inner class with nullable type and star projection - [`KT-62022`](https://youtrack.jetbrains.com/issue/KT-62022) K1 False positive EXPOSED\_FUNCTION\_RETURN\_TYPE on generics with anonymous object types - [`KT-58751`](https://youtrack.jetbrains.com/issue/KT-58751) Definitely non-nullable type gets lost with star projection - [`KT-56624`](https://youtrack.jetbrains.com/issue/KT-56624) "Unresolved reference" with import alias and enum constructor call - [`KT-54726`](https://youtrack.jetbrains.com/issue/KT-54726) K1: StackOverflowError on mutually recursive typealiases - [`KT-35134`](https://youtrack.jetbrains.com/issue/KT-35134) False negative INCOMPATIBLE\_TYPES, EQUALITY\_NOT\_APPLICABLE when comparing smartcast value to Boolean - [`KT-20617`](https://youtrack.jetbrains.com/issue/KT-20617) Qualified this`@property` does not work in extension properties with body expression - [`KT-10879`](https://youtrack.jetbrains.com/issue/KT-10879) OVERLOAD\_RESOLUTION\_AMBIGUITY for synthetic property accessor with smartcasted receiver - [`KT-26768`](https://youtrack.jetbrains.com/issue/KT-26768) K1 IDE: False positive "Smart cast to '$CLASS$' is impossible", on local variable in run closure - [`KT-63525`](https://youtrack.jetbrains.com/issue/KT-63525) K2: "IllegalStateException: Fake override should have at least one overridden descriptor" caused by unreachable code - [`KT-65333`](https://youtrack.jetbrains.com/issue/KT-65333) K2: UNRESOLVED\_REFERENCE for java inner class in intersection scope - [`KT-61060`](https://youtrack.jetbrains.com/issue/KT-61060) K2: Rewrite delegate inference - [`KT-63712`](https://youtrack.jetbrains.com/issue/KT-63712) Make it possible to add new stdlib API with SinceKotlin(2.0) - [`KT-63741`](https://youtrack.jetbrains.com/issue/KT-63741) K2: fix visibility inference with overridden + inherited member - [`KT-64488`](https://youtrack.jetbrains.com/issue/KT-64488) K2: False positive DEPRECATED\_ACCESS\_TO\_ENTRY\_PROPERTY\_FROM\_ENUM with context receivers - [`KT-62283`](https://youtrack.jetbrains.com/issue/KT-62283) K2: build Dokka with K2 user project and pass it to CI - [`KT-57585`](https://youtrack.jetbrains.com/issue/KT-57585) K2/MPP: false-negative errors on expect/actual modifiers mismatch - [`KT-66077`](https://youtrack.jetbrains.com/issue/KT-66077) IrFakeOverrideBuilder: NPE from IrJavaIncompatibilityRulesOverridabilityCondition.doesJavaOverrideHaveIncompatibleValueParameterKinds - [`KT-57044`](https://youtrack.jetbrains.com/issue/KT-57044) K2 LL Tests: false-positive 'Overload resolution ambiguity between candidates: \[`@Override`() fun test(): Unit , fun test(): Unit]' - [`KT-66020`](https://youtrack.jetbrains.com/issue/KT-66020) K2: ISE "IrPropertySymbolImpl is unbound. Signature: null" on a property with getter with `@JvmName` - [`KT-62135`](https://youtrack.jetbrains.com/issue/KT-62135) K2, KLIB: Classes are still sorted before serializing them to metadata - [`KT-65866`](https://youtrack.jetbrains.com/issue/KT-65866) \[K/N] Fix java.lang.IllegalArgumentException: Unknown visibility: unknown - [`KT-66005`](https://youtrack.jetbrains.com/issue/KT-66005) K2: "Should not be here: class org.jetbrains.kotlin.fir.expressions.impl.FirResolvedReifiedParameterReferenceImpl" on incorrect comparison of reified type parameter - [`KT-65840`](https://youtrack.jetbrains.com/issue/KT-65840) \[K2] Initializer type mismatch: expected 'Type', actual 'Type' - [`KT-65002`](https://youtrack.jetbrains.com/issue/KT-65002) K2: Incorrect suspend conversion if argument is an aliased functional type - [`KT-65984`](https://youtrack.jetbrains.com/issue/KT-65984) K2 scripting: failure on processing SUPPRESS annotation in the last script statement - [`KT-65680`](https://youtrack.jetbrains.com/issue/KT-65680) K2: Class redeclaration leads to BackendException during IR fake override builder - [`KT-66028`](https://youtrack.jetbrains.com/issue/KT-66028) K2: Convert FirExpectActualDeclarationChecker to platform checker - [`KT-65592`](https://youtrack.jetbrains.com/issue/KT-65592) K2: IrFakeOverrideBuilder: ISE "should not be called" on diamond hierarchy with explicit dependency on annotations.jar - [`KT-65277`](https://youtrack.jetbrains.com/issue/KT-65277) IrFakeOverrideBuilder: NPE from IrJavaIncompatibilityRulesOverridabilityCondition.doesJavaOverrideHaveIncompatibleValueParameterKinds - [`KT-65983`](https://youtrack.jetbrains.com/issue/KT-65983) K2 gradle scripting: "'val' cannot be reassigned" errors - [`KT-60452`](https://youtrack.jetbrains.com/issue/KT-60452) K2 Scripting: implement overriding of the script params - [`KT-65975`](https://youtrack.jetbrains.com/issue/KT-65975) K2: Implicit receivers resolution order in K2 scripting - [`KT-60249`](https://youtrack.jetbrains.com/issue/KT-60249) K2: No unit coercion generated for loops body - [`KT-65937`](https://youtrack.jetbrains.com/issue/KT-65937) K2: order of enum entries changed - [`KT-65933`](https://youtrack.jetbrains.com/issue/KT-65933) K2: Type missmatch in arrays in annotations - [`KT-65343`](https://youtrack.jetbrains.com/issue/KT-65343) JVM IR: Source parameter is lost when copying with DeepCopyIrTreeWithSymbols - [`KT-65103`](https://youtrack.jetbrains.com/issue/KT-65103) K2: IllegalArgumentException: IrErrorCallExpressionImpl(5388, 5392, "Unresolved reference: R?C|<local>/cont|") found but error code is not allowed - [`KT-62788`](https://youtrack.jetbrains.com/issue/KT-62788) K2: difference in annotation inheritance in overriddings - [`KT-65669`](https://youtrack.jetbrains.com/issue/KT-65669) K2: ClassCastException class FirDeclarationStatusImpl cannot be cast to class FirResolvedDeclarationStatus - [`KT-65493`](https://youtrack.jetbrains.com/issue/KT-65493) IrFakeOverrideBuilder: difference in return type for intersection with raw type - [`KT-65207`](https://youtrack.jetbrains.com/issue/KT-65207) IrFakeOverrideBuilder - nullable return type for intersection override - [`KT-65972`](https://youtrack.jetbrains.com/issue/KT-65972) Fix problems related to Unknown visibility in \[FP] intellij - [`KT-65246`](https://youtrack.jetbrains.com/issue/KT-65246) K2: Overiding java method that takes vararg parameter causes WRONG\_NULLABILITY\_FOR\_JAVA\_OVERRIDE warning - [`KT-59883`](https://youtrack.jetbrains.com/issue/KT-59883) K2: Disappeared INVALID\_IF\_AS\_EXPRESSION - [`KT-57300`](https://youtrack.jetbrains.com/issue/KT-57300) K2: subclass of MutableCollection with primitive element type has methods with boxed type - [`KT-58476`](https://youtrack.jetbrains.com/issue/KT-58476) Context receivers: "No mapping for symbol: VALUE\_PARAMETER" with context-receiver inside suspended lambda calling another suspended function - [`KT-52213`](https://youtrack.jetbrains.com/issue/KT-52213) Context receivers: "No mapping for symbol: VALUE\_PARAMETER" caused by contextual suspending function type with receiver - [`KT-56545`](https://youtrack.jetbrains.com/issue/KT-56545) Fix incorrect functions mangling in JVM backend in case of accidental clashing overload in a Java subclass - [`KT-13650`](https://youtrack.jetbrains.com/issue/KT-13650) Right-hand side of a safe assignment is not always evaluated, which can fool smart-casts - [`KT-61823`](https://youtrack.jetbrains.com/issue/KT-61823) K2: Render list of declarations in diagnostic messages with linebreak as separator - [`KT-65302`](https://youtrack.jetbrains.com/issue/KT-65302) IrFakeOverrideBuilder - missing `@EnhancedNullability` - [`KT-65241`](https://youtrack.jetbrains.com/issue/KT-65241) K2: \[LT] Compiler crash on assignment expression with incorrect lvalue - [`KT-60006`](https://youtrack.jetbrains.com/issue/KT-60006) K2: Disappeared EXPRESSION\_EXPECTED - [`KT-65817`](https://youtrack.jetbrains.com/issue/KT-65817) K2: Check if callable reference vararg adaption can be affected by primitive type aliases - [`KT-62847`](https://youtrack.jetbrains.com/issue/KT-62847) K2: Introduce FIR node for SAM conversion - [`KT-65920`](https://youtrack.jetbrains.com/issue/KT-65920) K2: no field for delegation is created - [`KT-65487`](https://youtrack.jetbrains.com/issue/KT-65487) K2: Different fake overrides and false positive NOTHING\_TO\_OVERRIDE for intersection/override with Collection.remove - [`KT-65460`](https://youtrack.jetbrains.com/issue/KT-65460) Don't compare order of functions in IR dump - [`KT-64276`](https://youtrack.jetbrains.com/issue/KT-64276) \[K/N]\[K2] K2 behaviorial difference with inconsistent inheritance of ObjCName - [`KT-65572`](https://youtrack.jetbrains.com/issue/KT-65572) \[K/N]\[K2] INCOMPATIBLE\_OBJC\_NAME\_OVERRIDE error message changed from K1 - [`KT-63420`](https://youtrack.jetbrains.com/issue/KT-63420) Prevent weakening visibility in implicit overrides - [`KT-64635`](https://youtrack.jetbrains.com/issue/KT-64635) K2: "KotlinIllegalArgumentExceptionWithAttachments: Expected expression 'FirAnonymousFunctionExpressionImpl' to be resolved" when provideDelegate is extension of function with receiver - [`KT-63879`](https://youtrack.jetbrains.com/issue/KT-63879) K2: Redundant flag `declaresDefaultValue` for parameter of function inherited from delegate - [`KT-56744`](https://youtrack.jetbrains.com/issue/KT-56744) Prepare language committee ticket about DFA/Smart-cast related changes in K2 - [`KT-65790`](https://youtrack.jetbrains.com/issue/KT-65790) K2: Move check for *private-to-this* visibility into checker - [`KT-65551`](https://youtrack.jetbrains.com/issue/KT-65551) K2: Property redeclaration on native compilation leads to NotImplementedError - [`KT-65770`](https://youtrack.jetbrains.com/issue/KT-65770) K2: Diagnostic rendering of `vararg Foo` parameter produces `vararg Array<Foo>` - [`KT-65555`](https://youtrack.jetbrains.com/issue/KT-65555) K2: must override 'spliterator' because it inherits multiple implementations for it - [`KT-59921`](https://youtrack.jetbrains.com/issue/KT-59921) K2: Disappeared NULL\_FOR\_NONNULL\_TYPE - [`KT-65290`](https://youtrack.jetbrains.com/issue/KT-65290) K2: No override for FUN DEFAULT\_PROPERTY\_ACCESSOR - [`KT-19446`](https://youtrack.jetbrains.com/issue/KT-19446) False positive "Smart cast to 'Foo' is impossible" due to same variable names in different closures - [`KT-65337`](https://youtrack.jetbrains.com/issue/KT-65337) K2: False positive UNRESOLVED\_REFERENCE when lambda labeled by illegal label and operator-invoked - [`KT-65448`](https://youtrack.jetbrains.com/issue/KT-65448) K2: fake overrides are not generated for 'containsAll', 'removeAll', 'retainAll' if inherited from raw type - [`KT-65298`](https://youtrack.jetbrains.com/issue/KT-65298) K2: not nullable return type and parameter for raw types - [`KT-63377`](https://youtrack.jetbrains.com/issue/KT-63377) K2: conflict between type parameter and nested class - [`KT-63286`](https://youtrack.jetbrains.com/issue/KT-63286) K2: Top-level properties in scripts are missing initialization checks - [`KT-59744`](https://youtrack.jetbrains.com/issue/KT-59744) K2: false negative VAL\_REASSIGNMENT in case of reassignment inside custom setter - [`KT-58579`](https://youtrack.jetbrains.com/issue/KT-58579) K2: false-positive new inference error on invoking a generic function on Java wildcard type bounded by raw-typed Java inner class - [`KT-60258`](https://youtrack.jetbrains.com/issue/KT-60258) Support java-kotlin interop for `@SubclassOptInRequired` - [`KT-60262`](https://youtrack.jetbrains.com/issue/KT-60262) Support for inter-module interaction for `@SubclassOptInRequired` - [`KT-62878`](https://youtrack.jetbrains.com/issue/KT-62878) K2: missing implicit coercion to unit - [`KT-59715`](https://youtrack.jetbrains.com/issue/KT-59715) K2: Check behaviour of property + operator in operator position - [`KT-63441`](https://youtrack.jetbrains.com/issue/KT-63441) IrFakeOverrideBuilder: "accidental override" when implementing a Java function taking an array parameter - [`KT-65706`](https://youtrack.jetbrains.com/issue/KT-65706) K2: IrFakeOverrideBuilder: ISE "Fake override should have at least one overridden descriptor" on J-K-J-K hierarchy with interface delegation - [`KT-61362`](https://youtrack.jetbrains.com/issue/KT-61362) K2: Properties/fields are missing from system libraries - [`KT-63344`](https://youtrack.jetbrains.com/issue/KT-63344) K2: False positive ABSTRACT\_CLASS\_MEMBER\_NOT\_IMPLEMENTED - [`KT-58845`](https://youtrack.jetbrains.com/issue/KT-58845) K2: SAM checker can run incorrectly in presence of an expect supertype - [`KT-61843`](https://youtrack.jetbrains.com/issue/KT-61843) K2: Missing TYPE\_MISMATCH for nested array literals - [`KT-62752`](https://youtrack.jetbrains.com/issue/KT-62752) expect-actual matcher/checker: return type must be "checking" incompatibility - [`KT-59887`](https://youtrack.jetbrains.com/issue/KT-59887) K2: Disappeared ACTUAL\_MISSING - [`KT-65604`](https://youtrack.jetbrains.com/issue/KT-65604) K2: INAPPLICABLE\_JVM\_NAME: effective modality - [`KT-65637`](https://youtrack.jetbrains.com/issue/KT-65637) Prepare documentation for PCLA implementation - [`KT-65341`](https://youtrack.jetbrains.com/issue/KT-65341) K2: "Cannot find cached type parameter by FIR symbol" caused by not-null assertion operator inside string in throw - [`KT-49283`](https://youtrack.jetbrains.com/issue/KT-49283) Support contribution type info from a nested builder inference call - [`KT-64077`](https://youtrack.jetbrains.com/issue/KT-64077) K2: Builder inference ignores constraints from nested builder inference - [`KT-49160`](https://youtrack.jetbrains.com/issue/KT-49160) Couldn't infer a type argument through several builder inference calls broken by a local class - [`KT-63827`](https://youtrack.jetbrains.com/issue/KT-63827) K2: Array += desugaring doesn't have origin - [`KT-65057`](https://youtrack.jetbrains.com/issue/KT-65057) K2: Wrong type inferred in code with heavy use of generics - [`KT-63514`](https://youtrack.jetbrains.com/issue/KT-63514) ISE “Inline class types should have the same representation: \[I != I” during compilation on submitting UIntArray to vararg - [`KT-61088`](https://youtrack.jetbrains.com/issue/KT-61088) K2: return types of non-last-expression calls to `@PolymorphicSignature` methods inside try-expressions don't resolve to void when required - [`KT-62476`](https://youtrack.jetbrains.com/issue/KT-62476) K2: Enable building fake overrides by ir on non-JVM targets - [`KT-59839`](https://youtrack.jetbrains.com/issue/KT-59839) Prohibit `header` and `impl` in MPP - [`KT-61310`](https://youtrack.jetbrains.com/issue/KT-61310) K2: "Not enough information to infer type variable R" for transformLatest - [`KT-63733`](https://youtrack.jetbrains.com/issue/KT-63733) Builder-style type inference can't resolve to extension overloads when they're more applicable than member ones - [`KT-57707`](https://youtrack.jetbrains.com/issue/KT-57707) K1: inconsistent TYPE\_MISMATCH in builder inference - [`KT-55057`](https://youtrack.jetbrains.com/issue/KT-55057) Builder inference changes behaviour sporadically based on BI annotation on unrelated call - [`KT-60663`](https://youtrack.jetbrains.com/issue/KT-60663) Builder inference does not work inside a nested unrelated builder inference lambda - [`KT-53639`](https://youtrack.jetbrains.com/issue/KT-53639) TYPE\_MISMATCH: compiler can't infer the list's type when using `buildList {}` builder or `Collection#isNotEmpty` - [`KT-60291`](https://youtrack.jetbrains.com/issue/KT-60291) K2: "IllegalStateException: Cannot serialize error type: ERROR CLASS: Cannot infer argument for type parameter T" during FIR serialization - [`KT-65033`](https://youtrack.jetbrains.com/issue/KT-65033) K2: Fir2LazyIr: Lazy type aliases not supported - [`KT-57709`](https://youtrack.jetbrains.com/issue/KT-57709) Inconsistent extension function call resolution in builder inference - [`KT-53740`](https://youtrack.jetbrains.com/issue/KT-53740) Builder inference with multiple lambdas leads to unsound type - [`KT-60877`](https://youtrack.jetbrains.com/issue/KT-60877) Builder inference from the null literal results in Nothing instead of Nothing? for producing positions of the postponed type variable - [`KT-53553`](https://youtrack.jetbrains.com/issue/KT-53553) Builder inference: inconsistent types in different lambda scopes - [`KT-54400`](https://youtrack.jetbrains.com/issue/KT-54400) K2: builder inference does not work with assignments of literals to member properties - [`KT-63840`](https://youtrack.jetbrains.com/issue/KT-63840) Builder inference fails on calls to identity-shaped functions with postponed type variables inside select-constructions - [`KT-65262`](https://youtrack.jetbrains.com/issue/KT-65262) K2: Exception in DFA for combination of try-finally + PCLA + DI - [`KT-58169`](https://youtrack.jetbrains.com/issue/KT-58169) K2: make equals bounded smart casts work the same as in K1 - [`KT-64967`](https://youtrack.jetbrains.com/issue/KT-64967) K2: false positive TYPE\_MISMATCH with generic type parameters - [`KT-64102`](https://youtrack.jetbrains.com/issue/KT-64102) K2: Missing (disappeared in this case) DELEGATE\_USES\_EXTENSION\_PROPERTY\_TYPE\_PARAMETER\_ERROR - [`KT-63988`](https://youtrack.jetbrains.com/issue/KT-63988) K2: Reflection cannot find type of local class of local class - [`KT-63901`](https://youtrack.jetbrains.com/issue/KT-63901) K2: Different naming of inner class in metadata - [`KT-63655`](https://youtrack.jetbrains.com/issue/KT-63655) K2: incorrect short class name in metadata for anonymous object inside a local class - [`KT-59664`](https://youtrack.jetbrains.com/issue/KT-59664) Inline modifier can be added to a constructor parameter, but it does not have any effect - [`KT-59418`](https://youtrack.jetbrains.com/issue/KT-59418) K2: Missing DUPLICATE\_PARAMETER\_NAME\_IN\_FUNCTION\_TYPE - [`KT-63612`](https://youtrack.jetbrains.com/issue/KT-63612) K2: Class is not abstract and does not implement abstract member - [`KT-63737`](https://youtrack.jetbrains.com/issue/KT-63737) Wasm: revise external declaration FE checker for WASI mode - [`KT-59782`](https://youtrack.jetbrains.com/issue/KT-59782) K2: Forbid local delegated properties with private accessors in public inline functions - [`KT-65482`](https://youtrack.jetbrains.com/issue/KT-65482) K2: NoSuchFieldError due to using unboxed type - [`KT-61182`](https://youtrack.jetbrains.com/issue/KT-61182) Unit conversion is accidentally allowed to be used for expressions on variables + invoke resolution - [`KT-62998`](https://youtrack.jetbrains.com/issue/KT-62998) Forbid assignment of a nullable to a not-null Java field as a selector of unsafe assignment - [`KT-63208`](https://youtrack.jetbrains.com/issue/KT-63208) K2: Implement deprecation cycle and fix missing errors for error-level nullable arguments of warning-level Java types - [`KT-57600`](https://youtrack.jetbrains.com/issue/KT-57600) Forbid overriding of Java method with raw-typed parameter with generic typed parameter - [`KT-63147`](https://youtrack.jetbrains.com/issue/KT-63147) K2: False negative DSL\_SCOPE\_VIOLATION when member is annotated with `@LowPriorityInOverloadResolution` - [`KT-62134`](https://youtrack.jetbrains.com/issue/KT-62134) K2: handle non-simple types during FirStatusResolver.isPrivateToThis check - [`KT-42020`](https://youtrack.jetbrains.com/issue/KT-42020) Psi2ir: IllegalStateException: "IrSimpleFunctionPublicSymbolImpl for public \[...] is already bound" on generic function whose substitution leads to IdSignature clash ##### See the full 2.0.0 ChangeLog here - <https://github.com/JetBrains/kotlin/blob/2.0.0/ChangeLog.md> </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about these updates again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4xMDQuMSIsInVwZGF0ZWRJblZlciI6IjQzLjEwNC4xIiwidGFyZ2V0QnJhbmNoIjoiZGV2ZWxvcCIsImxhYmVscyI6W119-->

renovate added 1 commit 2026-04-13 00:11:39 +02:00

Update kotlin.version to v2 ff4158aa49

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