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

• KT-69494 StackOverflowError in CfgTraverserKt.getPreviousCfgNodes
• KT-69723 K2: code analysis taking too long
• KT-56880 K2. Conflicting overloads for main() isn't shown when language version is set to 2.0
• KT-69170 K2: "Unresolved reference" caused by generics and fun interfaces
• KT-70039 K2: inconsistent stability of vals of captured receivers
• KT-68996 K2: "Not enough information to infer type argument" caused by typealias annotation with fixed generic argument
• KT-68889 K2: type variable should not be fixed
• KT-15388 Forbid delegated property to have external getter/setter

Compose compiler

• b/351858979 Fix stability inferencing of interfaces on incremental compilation
• b/346821372 [Compose] Fix code generation for group optimization

JavaScript

• KT-69353 KJS / d.ts: Kotlin does not export base collection classes along with their mutable collection counterparts

Libraries

• KT-68025 Improve documentation for Hex

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"

Native. Platform Libraries

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

Native. Runtime

• KT-68928 EXC_BREAKPOINT: BUG IN CLIENT OF LIBPLATFORM: Trying to recursively lock an os_unfair_lock

Tools. CLI

• KT-69792 Add the possibility to disable fast jar fs in K2

Tools. Gradle

• KT-69809 Compose Gradle Plugin: AGP doesn't override configuration properties like traceMarkersEnabled
• KT-68843 Gradle: Kotlin plugin changes source set 'main' to 'null/main'
• KT-69837 Deprecation warning for file-based IC is issued when the property is set to true, altering the intended meaning of the message

Tools. Gradle. JS

• KT-69805 YarnSetupTask does not work for custom downloadBaseUrl

Tools. Gradle. Multiplatform

• KT-69311 runDebugExecutable task fails with "this.compilation" is null with enabled configuration cache

Tools. Gradle. Native

• KT-69918 java.lang.NullPointerException: Cannot invoke "org.jetbrains.kotlin.gradle.plugin.mpp.KotlinNativeCompilation.getTarget()" because "this.compilation" is null

Tools. Incremental Compile

• KT-69042 K2: changing a Java constant won't cause Kotlin usages to recompile

Tools. JPS

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