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v2.2.0: Kotlin 2.2.0

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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<Int>
• 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<C>> </: A<Y<Tv>> given a Tv <: Rv == C constraint from a lambda return position
• 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 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