Kotlin 2.2.0-RC

Changelog

Compiler

Fixes

• KT-77259 Confusing message for ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD
• KT-77219 "@Composable annotation is not applicable" on vararg @Composable () -> Unit in Kotlin 2.2.0
• KT-77397 Report UNSUPPORTED_CONTEXTUAL_DECLARATION_CALL when calling declaration with contextual function type in signature
• KT-74470 NSME on calling in runtime internal constructor of value class with default arg from tests
• KT-77137 K2: Controversial behavior allows resolving annotation arguments on a companion inside it
• KT-77150 Native: compilation fails with an assertion error
• KT-76357 K2: a nested class annotation observes member declarations of the outer class
• KT-77283 Binary compatibility of FirDeclarationChecker
• 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-76898 K2: ClassCastException when data class shadows supertype's componentX method with wrong type
• KT-77078 K2: anonymous object is wrongly allowed to implement interfaces by unsafe Delegation
• KT-77001 Leave ForbidParenthesizedLhsInAssignments as a warning

Compose compiler

• CMP-7873 Native build fails with "e: Compilation failed: Exception during generating code for following declaration"
• b/412584977 Fix false positive for overriding open functions from older dependencies

JavaScript

• KT-77418 KJS: cannot debug with whole-program granularity
• KT-77271 KJS / Serialization: "Cannot set property message of Error which has only a getter"
• KT-69591 KJS / d.ts: Wrong type of SerializerFactory for abstract classes
• 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

Native

• KT-76992 Native: update llvm for windows targets

Native. Build Infrastructure

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

Tools. Gradle

• KT-76138 Compile against Gradle API 8.14
• KT-76139 Run integration tests against Gradle 8.14
• KT-76137 Compatibility with Gradle 8.14 release
• KT-76797 KGP: StdlibDependencyManagementKt.configureStdlibVersionAlignment() triggering eager configuration realization
• KT-77288 Using 'KotlinJvmOptions' is an error - Gradle sync issue when using 2.2.0-Beta2 with Android Gradle Plugin
• KT-77035 A compiler diagnostic isn't reported when its severity is set to warning with Gradle
• KT-73142 Kotlin Gradle plugin: Remove usage of Gradle's internal ExecHandleBuilder
• KT-75823 Resources bundle with XCFrameworks for iOS

Tools. Gradle. JS

• KT-77119 KJS: Gradle: Setting custom environment variables in KotlinJsTest tasks no longer works

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

Tools. Wasm

• KT-76948 Wasm: Rename kotlinBinaryenSetup and kotlinD8Setup