Kotlin

Changelog

Compiler

• KT-72345 K2: Method 'get' without @Override annotation not called
• KT-73065 CCE with context receivers
• 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

Compose compiler

• CMP-6926 iOS compilation failure: Unresolved reference 'copy'

IR. Inlining

• KT-72884 Internal error in body lowering: IllegalStateException: Can't inline g

2.1.0-RC

Backend. Wasm

• KT-72297 [Wasm] Unused associated object class lead to compiler fail

Compiler

• KT-72281 K/N: "Failed to wait for cache to be built"
• KT-72238 Argument type mismatch in builder inside extension function after ?:
• KT-71751 K2: Skipping code in last statement of lambda
• KT-72552 AutoboxingTransformer fails on during linkage on nested lambdas with cinteroped types
• KT-71649 K2: Put operator on mutableMap<T?, V>() causes crashes on null k

Changelog

Analysis API. Caches and Invalidation

• KT-71700 Cache result of resolveToCall
• KT-71520 Analysis API: LLFirNativeForwardDeclarationsSymbolProvider spends a lot of time in indices

Analysis API. Lazy Resolution

• KT-71567 LLFirCompilerRequiredAnnotationsTargetResolver should calculate annotation arguments on demand
• KT-71584 getNonLocalContainingOrThisDeclaration treats KtParameter from functional type as non-local
• KT-71566 FirElementBuilder#getFirForNonKtFileEle

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 - tr

2.0.21-RC

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
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Changelog

Analysis. API

New Features

• KT-68603 KotlinDirectInheritorsProvider: add an option to ignore non-kotlin results
• KT-69961 resolveToCallCandidates should support properties
• KT-69960 resolveToCallCandidates should support operators

Performance Improvements

• KT-70757 Performance problem in KaFirVisibilityChecker for KaFirPsiJavaClassSymbol
• KT-70529 KaSymbol: reduce the number of cached usages

Fixes

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: NativeForwardD

Changelog

Backend. Wasm

• KT-70591 To much sources that don't exist inside SourceMap file

Compiler

• KT-70186 Kotlin 2.0.20-Beta2: Unexpected number of type arguments: 0
• 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-69995 K2: Slow compilation when star projecting mutually

2.0.20-RC

Analysis. API

• KT-69630 KAPT User project builds with KAPT4 enabled fail with Metaspace overflow

Backend. Wasm

• KT-69876 K2 Compile exception: Only IrBlockBody together with kotlinx serialization
• 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

Compiler

2.0.10-RC2

Frontend

• KT-69876 K2 Compile exception: Only IrBlockBody together with kotlinx serialization

Note: This is a technical release for IntelliJ IDEA.

Changelog

Tools. JPS

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