org.jetbrains.kotlin:atomicfu

Changelog

Compiler

• KT-52311 java.lang.VerifyError: Bad type on operand stack
• KT-52503 New green code appeared at the callable reference resolution

JavaScript

• KT-52518 Kotlin/JS IR: project with 1.6.21 fails to consume library built with 1.7.0-RC: ISE "Unexpected IrType kind: KIND_NOT_SET" at IrDeclarationDeserializer.deserializeIrTypeData()

Tools. CLI

• KT-52409 Report error when use-k2 with Multiplatform

Tools. Gradle

• KT-52509 Main variant published to Gradle plugin portal uses unshadowed artifact
• KT-52392 Gradle: 1.7.0 does not support custom gradle build configuration on Windows OS

Tools. Kapt

• KT-52284 FIR: add error in 1.7.0 branch if run with Kapt

Checksums

Changelog

Compiler

• KT-51640 FIR: remove warning about "far from being production ready"
• KT-52404 Prolong deprecation cycle for errors at contravariant usages of star projected argument from Java
• KT-51844 New errors in overload resolution involving vararg extension methods
• KT-50877 Inconsistent flexible type
• KT-51988 "NPE: getContainingDeclaration…lDeclarationType.REGULAR) must not be null" when using @BuilderInference with multiple type arguments
• KT-51925 Native: "IllegalStateException: Symbol for kotlinx.cinterop/CStructVar|null[0] is unbound" caused by inline function
• KT-52035 FIR: add error in 1.7.0 branch if run on JS / Native configuration
• KT-52037 FIR: add error in 1.7.0 branch if run with non-compatible plugins

JavaScript

• KT-52144 KJS / IR: Missing property definitions for interfaced defined properties
• KT-51973 KJS / IR overridden properties of inherited interface missing

Native. Platforms

• KT-52232 Kotlin/Native: simplify toolchain dependency override for MinGW

Native. Runtime

• KT-52365 Kotlin/Native fails to compile projects for 32-bit targets when new memory manager is enabled

Tools. Commonizer

• KT-51224 MPP: For optimistically commonized numbers missed kotlinx.cinterop.UnsafeNumber
• KT-51215 MPP: Update Kdoc description for kotlinx.cinterop.UnsafeNumber

Tools. Gradle

• KT-52187 New IC can not be enabled in an Android project using kapt
• KT-51898 Upgrading Kotlin/Kotlin Gradle plugin to 1.5.3 and above breaks 'com.android.asset-pack' plugin
• KT-51913 Gradle plugin should not add attributes to the legacy configurations
• KT-52313 No recompilation in Gradle after adding or removing function parameters, removing functions (and maybe more) in dependent modules
• KT-52141 Optimize Java class snapshotting for the kotlin.incremental.useClasspathSnapshot feature
• KT-51978 Optimize classpath snapshot cache for the kotlin.incremental.useClasspathSnapshot feature
• KT-51415 Confusing build failure reason is displayed in case kapt is used and different JDKs are used for compileKotlin and compileJava tasks

Tools. Gradle. Cocoapods

• KT-51861 Custom binary name in CocoaPods plugin isn't respected by fatFramework task

Tools. Gradle. JS

• KT-51895 K/JS: Redundant technical messages during JS tests

Tools. Gradle. Multiplatform

• KT-51947 Mark HMPP tasks as notCompatibleWithConfigurationCache for Gradle 7.4 using Reflection

Tools. Kapt

• KT-51463 KAPT: Incremental compilation not working when rerunning unit tests

Tools. Scripts

• KT-49173 Add support for nullable types in provided properties and other configuration-defined declarations
• KT-51213 Kotlin JSR223 crashes with "ScriptException: ERROR java.lang.NullPointerException:" if bindings contain one or more null values
• KT-48812 Script: "IllegalStateException: unknown classifier kind SCRIPT" when passing a function reference to a Flow
• KT-50902 Scripts loaded from the compilation cache ignore the loadDependencies eval configuration property

Checksums

Changelog

Analysis API. FIR

• KT-50864 Analysis API: ISE: "KtCallElement should always resolve to a KtCallInfo" is thrown on call resolution inside plusAssign target
• KT-50252 Analysis API: Implement FirModuleResolveStates for libraries
• KT-50862 Analsysis API: do not create use site subsitution override symbols

Analysis API. FIR Low Level API

• KT-50729 Type bound is not fully resolved
• KT-50728 Lazy resolve of extension function from 'kotlin' package breaks over unresolved type
• KT-50271 Analysis API: get rid of using FirRefWithValidityCheck

Backend. Native. Debug

• KT-50558 K/N Debugger. Error is not displayed in variables view for catch block

Compiler

New Features

• KT-45165 Remove JVM target version 1.6
• KT-51737 Kotlin/Native: Remove unnecessary safepoints on watchosArm32 and iosArm32 targets

Performance Improvements

• KT-51699 Kotlin/Native: runtime has no LTO in debug binaries
• KT-34466 Use optimized switch over enum only when all entries are constant enum entry expressions
• KT-50861 FIR: Combination of array set convention and plusAssign works exponentially
• KT-47171 For loop doesn't avoid boxing with value class iterators (JVM)
• KT-29199 'next' calls for iterators of merged primitive progressive values are not specialized
• KT-50585 JVM IR: Array constructor loop should use IINC
• KT-22429 Optimize 'for' loop code generation for reversed arrays
• KT-50074 Performance regression in String-based 'when' with single equality clause
• KT-22334 Compiler backend could generate smaller code for loops using range such as integer..array.size -1
• KT-35272 Unnecessary null check on unsafe cast after not-null assertion operator
• KT-27427 Optimize nullable check introduced with 'as' cast

Fixes

• KT-51433 FE 1.0: implement warnings about label resolve changes
• KT-52146 JVM IR: "AssertionError: Primitive array expected" on vararg of SAM types with self-type and star projection
• KT-51818 "ClassCastException: class CoroutineSingletons cannot be cast to class" with suspendCoroutineUninterceptedOrReturn and coroutines
• KT-50730 Implement error for a super class constructor call on a function interface in supertypes list
• KT-52040 JVM: ClassFormatError Illegal method name "expectFailure$<init>__proxy-0"
• KT-51927 Native: The symbol of unexpected type encountered during IR deserialization error when multiple libraries have non-conflicting declarations with the same name
• KT-50845 Postpone rxjava errors reporting in the strict mode till 1.8 due to found broken cases
• KT-48890 Revert Opt-In restriction "Overriding methods can only have opt-in annotations that are present on their basic declarations."
• KT-51979 "AssertionError: No modifier list, but modifier has been found by the analyzer" exception on incorrect Java interface override
• KT-50378 Unresolved reference for method in Jsoup library in a kts script file
• KT-34919 "Visibility is unknown yet" when named parameter in a function type used in a typealias implemented by an abstract class
• KT-51893 Duplicated [OVERRIDE_DEPRECATION] on overridden properties
• KT-41034 K2: Change evaluation semantics for combination of safe calls and convention operators
• KT-51843 Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags
• KT-51914 False positive RETURN_TYPE_MISMATCH in intellij ultimate
• KT-51711 Compiler warning is displayed in case there is 'if' else branch used with elvis
• KT-49317 "IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA" with parameter of suspend type with the default parameter
• KT-33517 Kotlin ScriptEngine does not respect async code when using bindings
• KT-44705 Deprecate using non-exhaustive if's and when's in rhs of elvis
• KT-44510 FIR DFA: smartcast after elvis with escaping lambda
• KT-44879 FIR DFA: Track inc and dec operator calls in preliminary loop visitor
• KT-51624 FIR: false-positive INAPPLICABLE_LATEINIT_MODIFIER for lateinit properties with unresolved types
• KT-51204 FIR IC: Incremental compilation fails on nested crossinline
• KT-51798 Fix ISE from IR backend when data class inherits equals/hashCode/toString with incompatible signature
• KT-51499 @file:OptIn doesn't cover override methods
• KT-46187 FIR: OVERLOAD_RESOLUTION_AMBIGUITY on SAM-converted callable reference to List::plus
• KT-49778 Support cast to DefinitelyNotNull type in Native
• KT-51718 JVM / IR: "VerifyError: Bad type on operand stack" caused by nullable variable inside suspend function
• KT-34515 NI: "AssertionError: Base expression was not processed: POSTFIX_EXPRESSION" with double not-null assertion to brackets
• KT-48546 PSI2IR: "org.jetbrains.kotlin.psi2ir.generators.ErrorExpressionException: null: KtCallExpression" with recursive property access in lazy block
• KT-28109 "AssertionError: No setter call" for incrementing parenthesized result of indexed access convention operator
• KT-46136 Unsubstituted return type inferred for a function returning anonymous object upcast to supertype
• KT-51621 FIR: visible VS invisible qualifier conflict
• KT-50468 FIR compilers fails with CCE when meets top-level destruction
• KT-51557 Inline stack frame is not shown for default inline lambda
• KT-51358 OptIn: show default warning/error message in case of empty message argument
• KT-44152 FIR2IR fails on declarations from java stdlib if java classes are loaded from PSI instead of binaries
• KT-50949 PSI2IR: NSEE from ArgumentsGenerationUtilsKt.createFunctionForSuspendConversion with providing lambda as argument with suspend type
• KT-51439 FE 1.0: implement type variance conflict deprecation on qualifier type arguments
• KT-39256 ArrayStoreException with list of anonymous objects with inferred types created in reified extension function
• KT-39883 Deprecate computing constant values of complex boolean expressions in when condition branches and conditions of loops
• KT-36952 Exception during codegen: cannot pop operand off an empty stack (reference equality, implicit boxing, type check)
• KT-51233 AssertionError in JavaLikeCounterLoopBuilder with Compose
• KT-51254 Verify Error on passing null to type parameter extending inline class
• KT-50996 [FIR] Support Int -> Long conversion for property initializers
• KT-51000 [FIR] Support Int -> Long? conversion
• KT-51003 [FIR] Consider Int -> Long conversion if expected type is type variable
• KT-51018 [FIR] Wrong type inference if one of constraints is integer literal
• KT-51446 Metadata serialization crashes with IOOBE when deserializing underlying inline class value with type table enabled
• KT-50973 Redundant line number mapping for finally block with JVM IR
• KT-51272 Incompatible types: KClass<Any> and callable reference Collection::class
• KT-51229 FIR: private constructor of internal data class treated as internal and not private
• KT-50750 [FIR] Report UNSUPPORTED on array literals not from annotation classes
• KT-49804 False positive of UPPER_BOUND_VIOLATED and RETURN_TYPE_MISMATCH
• KT-51121 Inconsistent SAM behavior in multiple cases causing AbstractMethodError (Kotlin 1.6.10)
• KT-49925 [FIR] Incorrect builder inference (different cases)
• KT-50542 "IllegalStateException: Type parameter descriptor is not initialized: T declared in sort" with definitely non-null type Any & T in generic constraint
• KT-51235 JVM / IR: "AbstractMethodError: Receiver class does not define or inherit an implementation of the resolved method" when property with inline class type is overridden to return Nothing?
• KT-51223 Report warning about conflicting inherited members from deserialized dependencies
• KT-51156 Multiplatform linkDebugFramework task throws NoSuchElementException when expect class constructors utilize nested enum constant
• KT-51017 [FIR] Ambiguity on callable reference between two functions on generic receiver with different bounds
• KT-51007 [FIR] False positive ILLEGAL_SUSPEND_FUNCTION_CALL if fun interface with suspend function declared in another module
• KT-50998 [FIR] Int.inv() cal does not considered as compile time call
• KT-51009 [FIR] Incorrect inference of lambda in position of return
• KT-50997 [FIR] Incorrect type of typealias for suspend functional type
• KT-49714 Compiler reports "'operator modifier is inapplicable" if expect class with increment operator is provided via type alias
• KT-44623 "IllegalStateException: IdSignature is allowed only for PublicApi symbols" when suspending receiver is annotated with something
• KT-46000 JVM / IR: AssertionError on isSubtypeOfClass check in copyValueParametersToStatic with Compose
• KT-50211 Annotation Instantiation with default arguments in Native
• KT-49412 Controversial "type argument is not within its bounds" reported by FIR
• KT-48044 [FIR] Investigate behavior of UPPER_BOUND_VIOLATED on complex cases
• KT-37975 Don't show deprecation of enum class itself for its own member
• KT-50737 Inheritance from SuspendFunction leads to compiler crash
• KT-50723 Implement a fix of reporting of uninitialized parameter in default values of parameters
• KT-50749 Implement UNSUPPORTED reporting on array literals inside objects in annotation classes
• KT-50753 Implement reporting errors on cycles in annotation parameter types
• KT-50758 Fix inconsistency of exceptions at init block for an enum entry with and without a qualifier name
• KT-50182 CONST_VAL_NOT_TOP_LEVEL_OR_OBJECT: clarify error message for const in object expression
• KT-50183 Fix missing apostrophe escapes in compiler error messages
• KT-50822 Analysis API: make declaration transformers machinery to be a thread safe
• KT-50835 Inline functions with suspend lambdas break the tail-call optimization
• KT-49485 JVM / IR: StackOverflowError with long when-expression conditions
• KT-35684 NI: "IllegalStateException: Expected some types" from builder-inference about intersecting empty types on trivial code
• KT-48908 Error for annotation on parameter type could have distinct ID and message referring 1.6
• KT-48907 SUPERTYPE_IS_SUSPEND_FUNCTION_TYPE error could have message referring version 1.6
• KT-34338 Parameterless main causes duplicate JVM signature error
• KT-50577 JVM_IR: No NPE when casting uninitialized value of non-null type to non-null type
• KT-50476 JVM_IR: NSME when calling 'super.removeAt(Int)' implemented in Java interface as a default method
• KT-50257 JVM_IR: Incorrect bridge delegate signature for renamed remove(I) causes SOE with Kotlin class inherited from fastutils IntArrayList
• KT-50470 FIR: inapplicable candidate in delegate inference due to nullability
• KT-32744 Inefficient compilation of null-safe call (extra null checks, unreachable code)
• KT-36095 201: False positive OVERLOAD_RESOLUTION_AMBIGUITY with Java Enum.valueOf and Enum.values() reference

IDE

• KT-50111 Resolving into KtUltraLightMethod

IDE. Decompiler, Indexing, Stubs

• KT-51248 Function and parameter names with special symbols have to backticked

IDE. Multiplatform

• KT-50952 MPP: Commonized cinterops doesn't attach/detach to source set on configuration changes

JavaScript

New Features

• KT-51735 KJS / IR: Minimize member names in production mode

Performance Improvements

• KT-51127 Kotlin/JS - IR generates plenty of useless Unit_getInstance()
• KT-50212 KJS IR: Upcast should be a no-op
• KT-16974 JS: Kotlin.charArrayOf is suboptimal due to Rhino bugs

Fixes

• KT-51125 Provide a way to use import keyword in js expressions
• KT-50504 KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields
• KT-52010 K/JS IR: both flows execute when using elvis operator
• KT-51853 JS compilation fails with "Uninitialized fast cache info" error
• KT-51205 K/JS IR: external class is mapped to any
• KT-50806 Typescript definitions contain invalid nested block comments with generic parent and type argument without @JsExport
• KT-51081 KJS / IR + IC: Passing an inline function with default params as a param to a higher-order function crashes the compiler
• KT-51084 KJS / IR + IC: Cache invalidation doesn't check generic inline functions reified qualifier
• KT-51211 K/JS IR: JsExport: Can't export nested enum
• KT-51438 KJS / IR: Duplicated import names for the same external names
• KT-50953 KJS IR: Incorrect nested commenting in d.ts
• KT-15223 JS: function that overrides external function with vararg parameter is translated incorrectly
• KT-50657 KJS / IR 1.6.20-M1-39 - Date in Kotlin JS cannot be created from long.

Language Design

• KT-49006 Support at least three previous versions of language/API
• KT-16768 Context-sensitive resolution prototype (Resolve unqualified enum constants based on expected type)
• KT-50477 Functional conversion does not work on suspending functions
• KT-32162 Allow generics for inline classes
• KT-44866 Change behavior of private constructors of sealed classes
• KT-49110 Prohibit access to members of companion of enum class from initializers of entries of this enum
• KT-29405 Switch default JVM target version to 1.8

Libraries

New Features

• KT-50484 Extensions for java.util.Optional in stdlib
• KT-50146 Reintroduce min/max(By/With) operations on collections with non-nullable return type
• KT-46132 Specialized default time source with non-allocating time marks
• KT-41890 Support named capture groups in Regex on Native
• KT-48179 Introduce API to retrieve the number of CPUs the runtime has

Performance Improvements

• KT-42178 Range and Progression should override last()

Fixes

• KT-51470 Stabilize experimental API for 1.7
• KT-51775 JS: Support named capture groups in Regex
• KT-51776 Native: Support back references to groups with multi-digit index
• KT-51082 Introduce Enum.declaringJavaClass property
• KT-48924 KJS: toString in base 36 produces different results in JS compare to JVM
• KT-50742 Regular expression is fine on jvm but throws PatternSyntaxException for native macosX64 target
• KT-50059 Stop publishing kotlin-stdlib and kotlin-test artifacts under modular classifier
• KT-26678 Rename buildSequence/buildIterator to sequence/iterator

Native

• KT-49406 Kotlin/Native: generate standalone executable for androidNative targets by default
• KT-48595 Enable Native embeddable compiler jar in Gradle plugin by default
• KT-51377 Native: synthetic forward declarations are preferred over commonized definitions
• KT-49145 Kotlin/Native static library compilation fails for androidNative*
• KT-49496 Gradle (or the KMM plugin) is caching the Xcode Command Line Tools location
• KT-49247 gradle --offline should translate into airplaneMode for kotin-native compiler

Native. C and ObjC Import

• KT-49455 Methods from Swift extensions are not resolved in Kotlin shared module
• KT-50648 Incorrect KMM cinterop conversion

Native. ObjC Export

• KT-50982 RuntimeAssertFailedPanic in iOS when Kotlin framework is initialized before loading
• KT-49937 Kotlin/Native 1.5.31: 'runtime assert: Unexpected selector clash' when 'override fun toString(): String' is used

Native. Runtime. Memory

• KT-50713 Kotlin/Native: Enable Concurrent Sweep GC by default

Native. Stdlib

• KT-50312 enhancement: kotlin native -- add alloc<TVarOf<T>>(T)

Native. Testing

• KT-50316 Kotlin/Native: Produce a list of available tests alongside the final artifact
• KT-50139 Create tests for Enter/Leave frame optimization

Reflection

• KT-27598 "KotlinReflectionInternalError" when using callBy on constructor that has inline class parameters
• KT-31141 IllegalArgumentException when reflectively accessing nullable property of inline class type

Tools. CLI

• KT-29974 Add a compiler option '-Xjdk-release' similar to javac's '--release' to control the target JDK version
• KT-51717 IllegalArgumentException: Unexpected versionNeededToExtract (0) in 1.6.20-RC2 with useFir enabled
• KT-51673 Make language version description not in capital letters
• KT-48833 -Xsuppress-version-warnings allows to suppress errors about unsupported versions
• KT-51627 kotlinc fails with java.lang.RuntimeException if /tmp/build.txt file exists on the disk
• KT-51306 Support reading language settings from an environment variable and overriding the current settings by them

Tools. Commonizer

• KT-52050 [Commonizer] 'platform.posix.DIR' not implementing 'CPointed' when commonized for 'nativeMain' on linux or windows hosts
• KT-51224 MPP: For optimistically commonized numbers missed kotlinx.cinterop.UnsafeNumber
• KT-51215 MPP: Update Kdoc description for kotlinx.cinterop.UnsafeNumber
• KT-51686 Cinterop: Overload resolution ambiguity in 1.6.20-RC2
• KT-46636 HMPP: missed classes from platform.posix.*
• KT-51332 Optimistic number commonization is disabled by default in KGP with enabled HMPP

Tools. Gradle

New Features

• KT-50869 Provide API that allow AGP to set up Kotlin compilation
• KT-48008 Consider offering a KotlinBasePlugin
• KT-49227 Support Gradle plugins variants

Fixes

• KT-52189 Provide Gradle Kotlin/DSL friendly deprecated classpath property in KotlinCompiler task
• KT-51360 Show performance difference in percent between releases
• KT-51380 Add open-source project using Kotlin/JS plugin to build regression benchmarks
• KT-51937 Toolchain usage with configuration cache prevents KotlinCompile task to be UP-TO-DATE
• KT-48276 Remove kotlin2js and kotlin-dce-plugin
• KT-52138 KSP could not access internal methods/properties in Kotlin Gradle Plugin
• KT-51342 Set minimal supported Android Gradle plugin version to 3.6.4
• KT-50494 Remove kotlin.experimental.coroutines Gradle DSL option
• KT-49733 Bump minimal supported Gradle version to 6.7.1
• KT-48831 Remove 'KotlinGradleSubplugin'
• KT-51830 Gradle: deprecate kotlin.compiler.execution.strategy system property
• KT-47763 Gradle DSL: Remove deprecated useExperimentalAnnotation and experimentalAnnotationInUse
• KT-51374 NoSuchFileException in getOrCreateSessionFlagFile()
• KT-51837 kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.
• KT-45745 Migrate only Kotlin Gradle Plugin tests to new JUnit5 DSL and run them separately on CI
• KT-47318 Remove deprecated 'kotlinPluginVersion' property in `KotlinBasePluginWrapper'
• KT-51378 Gradle 'buildSrc' compilation fails when newer version of Kotlin plugin is added to the build script classpath
• KT-46038 Gradle: kotlin_module files are corrupted in the KotlinCompile output, and gets cached
• KT-51064 Kotlin gradle build hangs on MetricsContainer.flush
• KT-31027 java.lang.NoSuchMethodError: No static method hashCode(Z)I in class Ljava/lang/Boolean; or its super classes (declaration of 'java.lang.Boolean' appears in /system/framework/core-libart.jar)

Tools. Gradle. JS

• KT-51414 Allow set up environment variables for JS tests
• KT-51623 Kotlin/JS: Mocha could not failed when external module not found
• KT-51503 Update NPM dependency versions

Tools. Gradle. Multiplatform

• KT-51765 com.android.lint in multiplatform project without android target should not trigger warning
• KT-51386 [KPM] IdeaKotlinProjectModelBuilder: Implement dependencies
• KT-51262 [KPM] IDEA import: Move model builder to KGP
• KT-51220 [KPM][Android] Implement generic data storage and import pipeline
• KT-48649 No run task generated for macosArm64 target in Gradle plugin

Tools. Gradle. Native

• KT-51884 Gradle Native: "A problem occurred starting process 'command 'xcodebuild''" when building assembleFooXCFramework task on Linux

Tools. Incremental Compile

• KT-51546 FIR incremental compilation fails with assertion "Trying to inline an anonymous object which is not part of the public ABI"
• KT-44741 Incremental compilation: inspectClassesForKotlinIC doesn't determine changes with imported constant

Tools. Kapt

• KT-51132 KAPT: Support reporting the number of generated files by each annotation processor
• KT-30172 Kapt: Shutdown kotlinc gracefully in case of error in annotation processor

Tools. Scripts

• KT-52186 Scripts: Backend Internal error: Exception during IR lowering when using symbol from a dependency inside a function
• KT-51731 Script: jsr223 memory leak in spring-boot Fat Jar
• KT-49258 Scripts: method 'void <init>()' not found with multiple evals using kotlin script JSR223
• KT-51346 Scripts: "BackendException: Exception during IR lowering" with variable of imported script inside class

Checksums

Changelog

Compiler

• KT-51979 "AssertionError: No modifier list, but modifier has been found by the analyzer" exception on incorrect Java interface override
• KT-51893 Duplicated [OVERRIDE_DEPRECATION] on overridden properties
• KT-51927 Native: The symbol of unexpected type encountered during IR deserialization error when multiple libraries have non-conflicting declarations with the same name
• KT-51843 Functional interface constructor references are incorrectly allowed in 1.6.20 without any compiler flags
• KT-51672 JVM IR: Inline class mangling issue in interface default methods split across multiple modules
• KT-51711 Compiler warning is displayed in case there is 'if' else branch used with elvis
• KT-49317 "IllegalStateException: Parent of this declaration is not a class: FUN LOCAL_FUNCTION_FOR_LAMBDA" with parameter of suspend type with the default parameter

IDE. Native

• KTIJ-20819 Native debugging support: "Debug is impossible without lldb binaries required by Kotlin/Native" on "Attach to process"

JavaScript

• KT-52010 K/JS IR: both flows execute when using elvis operator
• KT-51973 KJS / IR overridden properties of inherited interface missing
• KT-50504 KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields

Tools. Gradle

• KT-51837 kotlin-gradle-plugin:1.6.20 fails xray scan on shadowed Gson 2.8.6.

Tools. Gradle. Multiplatform

• KT-51810 MPP / Gradle: Dependency locking fails with 1.6.20
• KT-51765 com.android.lint in multiplatform project without android target should not trigger warning

Checksums

Changelog

Compiler

New Features

• KT-48217 Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used
• KT-49929 [FIR] Support programmatic creation of annotation class instances
• KT-49276 Warn about potential overload resolution change if Range/Progression starts implementing Collection
• KT-47902 Do not propagate method deprecation through overrides
• KT-49857 Require Xcode 13 for building Kotlin/Native compiler
• KT-47701 Support instantiation of annotation classes on Native
• KT-46085 Support experimental parallel compilation of a single module in the JVM backend
• KT-46603 Generate SAM-conversions to Java interfaces extending 'java.io.Serializable' as serializable using java.lang.invoke.LambdaMetafactory

Performance Improvements

• KT-50156 HMPP: Slow frontend/ide performance in OKIO (ExpectActualDeclarationChecker)
• KT-50073 Performance regression in adapted function references
• KT-50076 Performance regression in super call to an interface member in $DefaultImpls
• KT-50080 Performance regression in string template with generic property with primitive upper bound
• KT-50084 Performance regression in concatenation with 'String?'
• KT-50078 Performance regression in for-in-array loop
• KT-50039 Performance regression in inner class constructor call with default parameters
• KT-48784 An anonymous class has fields for variables that are only used in the constructor
• KT-42010 Generate IINC instruction for postfix increment in JVM_IR
• KT-48433 JVM_IR don't generate null check on 'this$0' parameter of inner class constructor
• KT-48435 JVM_IR ConstForLoopBenchmark performance regression
• KT-48507 JVM_IR ForLoopBenchmark regressions
• KT-48640 Performance regression in 'longDownToLoop' benchmarks
• KT-29822 Generate specialized bytecode for loops withIndex over unsigned arrays
• KT-48669 Generate optimizable counter loop for loops over indices of unsigned arrays
• KT-49444 Possible performance degradation with UInt downTo loop
• KT-48944 Possible performance regression with comparison of local KFunctions
• KT-17111 Eliminate redundant store/load instructions when the value stored is simple
• KT-36837 Generate more compact code for for-in-range loop in JVM_IR
• KT-48947 JVM / IR Possible performance regression with string templates
• KT-48931 JVM / IR: Performance degradation with string concatenation
• KT-36654 Generate more compact bytecode for safe call in JVM_IR

Fixes

• KT-24643 Prohibit using a type parameter declared for an extension property inside delegate
• KT-51747 Make KtCallableDeclaration.getContextReceivers default to preserve compatibility
• KT-49658 NI: False negative TYPE_MISMATCH on nullable type with when
• KT-43493 NI: @BuilderInference prevents compilation error of "Operator '==' cannot be applied to 'Long' and 'Int'"
• KT-51649 Kotlin/Native: reduce binary size of watchosArm32 and iosArm32 targets by limiting inlining of runtime functions
• KT-48626 JVM IR: incorrect behavior for captured for-loop parameter since 1.6.20-dev-723
• KT-51036 JVM / IR: "NullPointerException: Parameter specified as non-null is null" with synchronized and companion object
• KT-51471 Native: incorrect debug information when inheriting suspend fun invoke implementation
• KT-51352 "ClassCastException: class ScopeCoroutine cannot be cast to class Iterable" caused by coroutines and context receivers
• KT-51271 "ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3" with inlining of context function
• KT-47084 JVM IR: "AssertionError: inconsistent parent function for CLASS LAMBDA_IMPL" with tailrec function default parameter nested inline lambda
• KT-30616 Script: "Don't know how to generate outer expression" for top-level variable reference from static context (companion object, enum)
• KT-50520 "NPE: containingDeclaration.ac…lDeclarationType.REGULAR) must not be null" with implicit type on self-referencing lambda in a builder
• KT-51353 IncompatibleClassChangeError: Expected non-static field com.soywiz.korim.color.Colors.BLACK
• KT-48945 JVM IR: special bridge for get is not generated in a Map subclass
• KT-48499 Interface call with an inline/value parameter generates AbstractMethodError after rebuilding the module, but NOT the file.
• KT-49998 JVM: missing default value for annotation parameter of an unsigned type
• KT-49793 JVM: IncompatibleClassChangeError: Expected non-static field when property delegation uses receiver of another delegated property
• KT-51302 Kotlin/Native 1.6.20-M1 compiler fails because of assertion in NativeAnnotationImplementationTransformer
• KT-51148 "AssertionError: At this stage there should be no remaining variables with proper constraints" caused by two type parameters
• KT-50970 Kotlin/Native: use arm instruction set instead of thumb-2 for iosArm32 and watchosArm32 targets
• KT-50843 Kotlin/Native: LLVM constant merge pass does not work for Kotlin constants
• KT-51157 JVM / IR: "IndexOutOfBoundsException: Index: 1, Size: 1" caused by interface hierarchy and UInt method parameter
• KT-50498 Exception after analysing an erroneous lambda
• KT-50258 equals() returns false on the same enum instances if we check it for the second time in when
• KT-51062 Progressions resolve changing warning isn't reported for Java methods
• KT-48544 JVM / IR: "UnsupportedOperationException: Unknown structure of ADAPTER_FOR_CALLABLE_REFERENCE" with callable reference ::arrayOf
• KT-50978 [Native] Error while building static cache: NoSuchElementException at IrTypeInlineClassesSupport.getInlinedClassUnderlyingType(InlineClasses.kt:341)
• KT-50977 [Native] Error while building static cache: IllegalStateException: Class CLASS ENUM_ENTRY is not found at KonanIrlinkerKt.findClass(KonanIrlinker.kt:229)
• KT-50976 [Native] Error while building static cache: IllegalStateException: No descriptor found at DescriptorByIdSignatureFinder.findDescriptorForPublicSignature(DescriptorByIdSignatureFinder.kt:157)
• KT-51040 Type inference fails on 1.6: "Cannot use 'CapturedType(*)' as reified type parameter" with EnumSet and elvis operator
• KT-51080 Line number in mapping for the first instruction is lost
• KT-49526 JVM IR: Function reference with non-denotable intersection type argument is not inlined and is incorrectly approximated
• KT-50399 Error: unexpected variance in super type argument: out @0
• KT-50649 JVM IR: ClassCastException when returning Result as generic type
• KT-50617 JVM IR: java.lang.IndexOutOfBoundsException "Empty list doesn't contain element at index 0" when class and interface have the same name and extension function is used
• KT-50856 SAM conversion generates invalid bytecode for generics
• KT-45693 False negative INCOMPATIBLE_TYPES with when with generic subject
• KT-49903 JVM IR: InlineOnly optimization leads to behavior change for println with mutating System.out
• KT-51022 Fix error messages for resolution ambiguity with stub types
• KT-51035 PSI2IR: "org.jetbrains.kotlin.psi2ir.generators.ErrorExpressionException: null: KtCallExpression:" caused by recursive call of java function
• KT-50797 Implement fix for false negative UPPER_BOUND_VIOLATED with generic typealias using not all type parameters as arguments for underlying type
• KT-50878 Usage of contextual declarations from third-party library is allowed without -Xcontext-receivers
• KT-49829 Wrong "cast can never succeed" diagnostic with builder inference
• KT-49828 Improve builder inference diagnostics with overload resolution ambiguity
• KT-50989 CCE cause by EmptySubstitutor in ResolutionWithStubTypesChecker
• KT-49729 Implement deprecation warning for private constructors of sealed classes
• KT-49349 Implement deprecation for invalid if as expression in rhs of elvis
• KT-46285 [SEALED_SUPERTYPE_IN_LOCAL_CLASS] Error message isn't adopted to local objects and sealed interfaces
• KT-49002 Allow OptIn marker on override if base class has the same marker
• KT-48899 Report warnings on overrides with wrong types nullability
• KT-49461 Implement prohibitation of access to members of companion of enum class from initializers of entries of this enum
• KT-49754 Kotlin/JS: @JsExport on enum class reports NON_EXPORTABLE_TYPE warning
• KT-49598 Misleading error message "Using @JvmRecord is only allowed with -jvm-target 15 and -Xjvm-enable-preview flag enabled"
• KT-44133 Inline classes: class literal in annotation arguments uses underlying type
• KT-47703 ClassCastException: Programmatically created annotation can't hold Array<KClass<*>>
• KT-47549 JVM / IR: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER CONTINUATION_CLASS caused by suspend function inside "fun interface" in another file
• KT-50120 HMPP: False positive [NO_VALUE_FOR_PARAMETER] for expect function usages
• KT-49864 JVM IR: NoSuchMethodError calling default interface method with inline class return type in -Xjvm-default=all mode
• KT-49812 JVM / IR: "java.lang.VerifyError: Bad return type" when using Result type attribute + extension function with same name
• KT-49936 Extension property in a data class with the same name as the constructor parameter leads to incorrect component function being resolved and generated
• KT-48181 "ISE: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER" on creating instance of kotlin.Metadata
• KT-50215 VerifyError caused by missing cast after is check in when
• KT-49977 "Parameter specified as non-null is null" when inline class implements interface method with default parameters
• KT-50385 DUPLICATE_LABEL_IN_WHEN is reported on incorrect branches
• KT-49092 JVM: ArrayIndexOutOfBoundsException on compiling call with if expression and TODO() arguments
• KT-48987 JVM / IR: Smartcast, which never succeed, crashes the compiler
• KT-50277 Invalid bytecode generated for inline lambda in suspend function
• KT-50219 FIR DFA/CFA: no smart cast after null check and assignment
• KT-44561 FIR DFA: extract non-null info from comparison against variable with initial constant value
• KT-44560 FIR DFA: propagate non-null info to original variables in not-null assertion or cast expression
• KT-50278 FIR: accidental resolve to inaccessible value parameter
• KT-47483 JVM IR: "NoSuchElementException: Sequence contains no element matching the predicate" on compiling Array instantiation with TODO
• KT-50304 EXC_BAD_ACCESS at IntrinsicsNative.kt starting coroutine on object with suspend fun as supertype
• KT-49765 JVM: ClassCastException when trying to add object to EmptyList
• KT-46879 "AssertionError: Stack should be spilled before suspension call" with Flow and reified type
• KT-50172 "AssertionError: Not a callable reflection type" on local function reference with the same name as local variable
• KT-49443 JVM IR, Script: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" with constructor call of class that has a top-level extension function call
• KT-50193 Garbage collection is not working the same way after jvm-ir-backend change
• KT-19424 Compilation exception for script with property delegate calling operator invoke on an object
• KT-43995 Script: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" if companion object initializer calls method on list
• KT-47000 Allow graceful migration to -Xjvm-default=all-compatibility by allowing to inherit from interfaces even in the old (-Xjvm-default=disable) mode
• KT-50180 FIR: not enough information to infer type variable for definitely not null type
• KT-50163 FIR: ISE unsupported compile-time value BLOCK on complex annotations
• KT-50171 JVM IR: "UninitializedPropertyAccessException: Parent not initialized: IrVariableImpl" on SAM-converted property setter reference with Double parameter inside lambda
• KT-50140 Internal error on explicit string concatenation of generic type value with 'String' upper bound
• KT-49992 Anonymous object should not have access to private members from supertypes
• KT-49973 Check existing of default error message for all diagnostics
• KT-50019 Property delegated to callable reference: "ISE: Local class should have its name computed in InventNamesForLocalClasses" with -Xno-optimized-callable-references
• KT-49645 JVM / IR: "IllegalStateException: Local class should have its name computed" caused by default suspend function in interface and value class
• KT-50028 Incorrect implicit casts from Unit
• KT-49615 JVM / IR: "Exception during IR lowering" with list of value classes with non-trivial constructor inside suspend lambda
• KT-49127 FIR: smart cast is not performed after comparison
• KT-48708 Incorrect cast from Unit to Int
• KT-48376 FIR: False positive UNITIALIZED_VARIABLE after try/finally with return from try
• KT-48113 FIR: (false) positive EQUALITY_NOT_APPLICABLE for intersection with platform type
• KT-48305 FIR: incorrect raw type cast
• KT-48378 FIR: synthetic accessor lowering should not attempt to modify other files
• KT-48634 FIR: false property-setter-function resolve cycle
• KT-48621 FIR: SyntheticAccessorLowering should not attempt to modify other files for protected JvmField
• KT-48381 Invalid LLVM module: verification failure of createInlineClassInArgumentPosition.kt
• KT-48527 Native: top-level properties in files with @Test functions are initialized eagerly even if lazy initialization is enabled
• KT-48559 IllegalArgumentException: Unexpected super type argument: * @ 0 during IR lowering
• KT-48687 IR dump mismatch after deep copy with symbols in IR text test
• KT-44811 [FIR] Exception in body resolve of new contracts
• KT-48363 FIR behaves differently in case of resolution between classifier and top-level property
• KT-48801 "AssertionError: Stack should be spilled before suspension call" with Flow and crossinline
• KT-46389 JVM / IR: "ClassCastException: class IrGetValueImpl cannot be cast to class IrConst" with inheritance of supertypes member functions with similar signatures
• KT-47797 Regression during migration to 1.6 in compiler
• KT-47987 Can't infer a postponed type variable based on callable reference receiver type
• KT-48446 "IllegalStateException: IrErrorType (getErasedUpperBound)" caused by suspend function reference
• KT-48651 Collect intermediate annotations during type expanding
• KT-48754 JVM IR: <clinit> in EnclosingMethod leads to IncompatibleClassChangeError on Android 5.0
• KT-45034 Use the new type inference for top-level callable references
• KT-49001 OptIn marker should spread from class to its members, taking into account real dispatch receiver type
• KT-49038 Generics are discriminated during callable references resolution (false negative)
• KT-48954 JVM IR: IllegalAccessError when using Java method reference in constructor
• KT-48284 JVM / IR: "IllegalStateException: Function has no body: FUN STATIC_INLINE_CLASS_REPLACEMENT" caused by inline member toString of value class and string interpolation
• KT-49053 JVM / IR: "AssertionError: Unbound symbols not allowed" on inheriting a protected Java method that returns a package private class from a differently-named file
• KT-49106 JVM: infinite recursion with overridden default suspend interface method where override calls super
• KT-45345 FIR DFA: FirDataFlowAnalyzer seems to add wrong type constraints for type parameters
• KT-44513 FIR DFA: extract non-null info from x?.y!!
• KT-44559 FIR DFA: propagate non-null info from not-null assertion (!!)
• KT-49073 FIR: REDUNDANT_MODIFIER and DEPRECATED_MODIFIER_PAIR should be warnings
• KT-46371 FIR: Investigate FunctionType -> ExtensionFunctionType coercion
• KT-49078 FIR: false positive TYPE_VARIANCE_CONFLICT
• KT-47135 FIR: local class references does not compile
• KT-48600 NON_TAIL_RECURSIVE_CALL missing for calls inside lambda
• KT-48602 NON_TAIL_RECURSIVE_CALL missing for calls with explicit dispatch receiver to a singleton
• KT-48982 JVM / IR: KotlinNothingValueException caused by function with local object
• KT-49087 FIR: false positive REPEATED_ANNOTATION
• KT-48648 JVM IR: "AssertionError: Should be primitive or nullable primitive type" with @JvmField generic property with Number upper bound
• KT-49069 FIR: False positive INAPPLICABLE_JVM_NAME on getter
• KT-49203 JVM IR: "AssertionError: Unbound symbols not allowed" with lateinit var and plusAssign operator convention call
• KT-48993 JVM / IR: "IllegalStateException: Validation failed in file <multi-file facade ...>" using @JvmMultifileClass and one of the symbols in the file exposes a @JvmInline value class
• KT-48938 FIR: Investigate how priorities should work in case SAM-conversion + type parameters
• KT-49129 FIR: false positive of INNER_CLASS_OF_GENERIC_THROWABLE_SUBCLASS
• KT-49076 FIR: false positive "An annotation argument must be compile-time constant" on array of imports
• KT-49222 FIR: StackOverflow in MethodSignatureMapper
• KT-49083 FIR erroneously requires default value parameters for override calls when imported from object
• KT-49135 FIR: ambiguity between type alias and function
• KT-49134 FIR makes no difference between lambda with empty parameter list and without explicit parameter list
• KT-49301 FIR: Unresolved reference: <init> for object inherited from inner class
• KT-49070 FIR: ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED with type parameter / class conflict
• KT-49133 FIR: protected java.lang.Throwable constructor is not available
• KT-49407 JVM / IR: "java.lang.VerifyError: Bad local variable type" with "Int.mod" inside "Long.mod" and non-trivial argument
• KT-44975 SUBCLASS_CANT_CALL_COMPANION_PROTECTED_NON_STATIC: confusing error message
• KT-38698 MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED error message: interface is called a "class"
• KT-45001 Confusing warning message "This class can only be used with the compiler argument" for @OptIn annotation
• KT-49411 JVM / IR: NullPointerException during IR lowering with @JvmField property in loop range
• KT-49260 FIR: make FirBasedSymbol hierarchy to correspond FirDeclaration hierarchy
• KT-49289 FIR: false positive "return required" for if/else with inlined return in branch
• KT-49316 JVM / IR: "AssertionError: SyntheticAccessorLowering should not attempt to modify other files!" caused by unreachable code which try to modify val from the other package
• KT-45915 NoDescriptorForDeclarationException: Descriptor wasn't found for declaration FUN with circular module dependencies in JPS
• KT-49288 FIR2IR: consider generating all fake override calls properly
• KT-42784 FIR2IR: first create fake overrides, then bind overridden to them
• KT-48816 Kotlin/Native Symbol for public platform.darwin/NSObject|null[100] is unbound
• KT-49372 JVM / IR: Incorrect work of the loop optimization for mutable variable
• KT-49356 Native: UnsupportedOperationException: RETURNABLE_BLOCK caused by nested return with boxing and inline
• KT-49659 JVM IR: Missing value class mangling in SAM wrappers for fun interfaces from different modules
• KT-47101 Incorrect scope for supertypes in companion objects
• KT-49360 Invalid LLVM module: "inlinable function call in a function with debug info must have a !dbg location"
• KT-48430 JVM: ClassCastException with inline class as generic argument for type parameter used in a function type
• KT-49575 IllegalArgumentException: Unhandled intrinsic in ExpressionCodegen with circular module dependencies in JPS
• KT-47669 IR inliner doesn't handle inner class functions referring outer this
• KT-48668 JVM IR: "ISE: Value at CLASS must not be null for CLASS" for modules with a dependency cycle
• KT-49370 JVM / IR: "java.lang.VerifyError: Bad local variable type" with "fun Long.mod" and non-trivial argument
• KT-46744 Memory Leaks in Kotlin daemon
• KT-48806 False-negative USED_AS_EXPRESSION for unreachable catch clauses
• KT-45972 FIR: type is incorrectly resolved to private
• KT-46968 Remove FirCompositeScope from type resolve
• KT-49072 FIR: accidental resolve to private-in-file type
• KT-34822 FIR scopes: deal with nested / inner classes and type parameter priority
• KT-49702 Exception from RENDER_WHEN_MISSING_CASES diagnostic on malformed sealed class inheritor
• KT-49860 [FIR] Add smartcast expression to synthetic subj access
• KT-49836 Inference fails on lambda and adjacent function expressions with receiver
• KT-49832 Inference fails on lambda for function types with extension parameter
• KT-44022 Excessive diagnostics range for DECLARATION_CANT_BE_INLINED
• KT-48690 VERSION_REQUIREMENT_DEPRECATION_ERROR message: use current compiler version instead of language version
• KT-49609 Incorrect grammar in DATA_CLASS_NOT_PROPERTY_PARAMETER error message
• KT-49600 Misspelled error message for non-constructor properties with backing fields in @JvmRecord class
• KT-49339 Warn about synchronizing on value classes
• KT-49950 Compilation failed: An operation is not implemented: IrBasedTypeParameterDescriptor
• KT-43604 Problem with initialization order
• KT-23890 Default arguments are not transferred from expect generic member functions
• KT-48811 Expect/actual class with default constructor argument values can not be instantiated from a shared source set without passing arguments (with HMPP enabled)
• KT-48106 FIR: incorrect type inference in provideDelegate receiver
• KT-48325 Safe call operator prevents object from being garbage collected before leaving function
• KT-50004 Linking kotlinx.serialization crashes on Native and JS IR backends
• KT-49311 Missing FIR checker for unresolved references in import statement
• KT-48104 FIR does not see NotNull/Nullable annotations on type arguments
• KT-46812 [FIR] Make FIR diagnostics not related to Diagnostics from FE 1.0
• KT-37374 [FIR] Add CheckInfixModifier resolution stage
• KT-38351 FIR: Support CheckOperatorModifier resolution stage
• KT-39614 [FIR] Fix building CFG for different candidates of plus assign call
• KT-40197 [FIR] Strange Behaviour of Type Arguments
• KT-40362 [FIR] Match type arguments with type parameters of corresponding qualifier
• KT-40375 FIR: No transformation implicit type -> error type for function value parameters
• KT-40585 [FIR] Incorrect type for 1/1.0
• KT-42525 [FIR] Incorrect IR produced for java.lang.Byte.MAX_VALUE
• KT-43359 FIR: Check applicability type for callable reference with unbound receiver
• KT-43378 FIR: Support or prohibit via call checker callable references to member extensions
• KT-43289 FIR: Correctly load irrelevant override for special built-ins
• KT-44558 Annotation arguments const expr support is missing in FIR
• KT-45223 [FIR] Ambiguity between explicit and synthetic removeAt
• KT-42215 FIR: callable reference resolution with type constraints at call-sites
• KT-45520 FIR: NONE_APPLICABLE for unsafe call to function with overloads instead of UNSAFE_CALL
• KT-46410 [FIR] Transform of FirAugmentedArraySetCall leaves erroneous nodes in control flow graph
• KT-46421 FIR: Investigate builder-inference cases
• KT-43948 FIR: hidden unresolved callable reference
• KT-46558 FIR DFA: run once contract is not considered when analyzing lambda
• KT-47125 FIR: Do not avoid trivial constraints if they aren't from upper bounds
• KT-43691 FIR: false positive VARIABLE_INITIALIZER_IS_REDUNDANT with usage in try...finally
• KT-37311 [FIR] Support inference of callable references with type variable as expected type
• KT-31972 Error type encountered: org.jetbrains.kotlin.types.ErrorUtils$UninferredParameterTypeConstructor@1f5b38c2 (ErrorType).
• KT-48761 Report NO_TAIL_CALLS_FOUND on 'tailrec' modifier, not on the whole function header
• KT-47647 NI: Function reference to Java static method can't compile if passed directly as KFunction1 parameter
• KT-46995 Fix setters implicit types only resolved on full body resolve
• KT-46359 Kotlin 1.5 lambda is not Java-serializable by default
• KT-49282 FIR: suspend conversion does not work inside suspend lambda
• KT-48953 FIR: implement diagnostic DELEGATE_USES_EXTENSION_PROPERTY_TYPE_PARAMETER
• KT-38813 FIR: Report INSTANCE_ACCESS_BEFORE_SUPER_CALL diagnostic on receiver usages in secondary constructors headers
• KT-49657 FIR: accidental override with get:JvmName
• KT-49655 FIR: smart cast is not performed after update of var to not-null value in branch

Docs & Examples

• KT-50866 [Docs] [Kotlin/Native] Support non-NativeActivity Android executables
• KT-50220 [Docs] [Kotlin/JVM] New @JvmDefaultWithCompatibility annotation and changes in -Xjvm-default arguments behavior
• KT-50844 [Docs][K/JS] KJS / IR: Installation of NPM dependencies should be with ignore-scripts
• KT-50831 [Docs][K/JS] Gradle, JS: Ability to persist / reuse yarn.lock
• KT-51086 [Docs] [Build Tools] Allow to configure additional jvm arguments for 'KaptWithoutKotlincTask`
• KT-50563 [Docs] [Build Tools] Deprecate kotlin.experimental.coroutines Gradle DSL option and kotlin.coroutines property
• KT-50580 [Docs] [Kotlin/Native] Support instantiation of annotation classes on Native
• KT-50874 [Docs] [Language] Add ability to specify generic type parameters as not-null
• KT-50564 [Docs] [K/JS] Ensure that @AfterTest is invoked after the @Test function completes for asynchronous tests

IDE

New Features

• KTIJ-20169 Link to What's new in a notification about new Kotlin version

Performance Improvements

• KTIJ-20568 Optimize SubpackagesIndexService#hasSubpackages

Fixes

• KTIJ-13020 New compiler settings are applied only after the project is reloaded
• KTIJ-21154 StackOverflowError on Companion.extractPotentiallyFixableTypesForExpectedType that causes "Syntax highlighting has been temporarily turned off"
• KTIJ-20129 Load "@NotNull T" types from libraries as definitely non-nullable if any module in project loads such types as definitely non-nullable
• KTIJ-9793 UAST: KotlinAbstractUElement.equals fails for psi-less elements
• KTIJ-16203 UAST: Annotating assignment expression sometimes leads to UnknownKotlinExpression
• KTIJ-18720 UAST: @Deprecated(level=DeprecationLevel.HIDDEN) makes method visibility be dropped
• KTIJ-18039 @Deprecated(level=HIDDEN) elements return false for isDeprecated()
• KTIJ-18716 KotlinUMethodWithFakeLightDelegate.hasAnnotation() doesn't find annotations
• KTIJ-20220 Kotlin plugin crashes very often
• KTIJ-20308 Syntax highlighting is temporary suspended for file ... due to internal error
• KTIJ-6085 Exception Incorrect CachedValue... with KtUltraLightMethodForSourceDeclaration
• KTIJ-18977 Do not show warning Outdated bundled kotlin compiler if there are no compatible plugin with newer compiler
• KTIJ-20253 Consider supporting special highlighting for definitely non-null types
• KT-42194 OOME: Java heap space from incremental compilation
• KTIJ-13019 "Add '-Xopt-in=kotlin.io.path.ExperimentalPathApi' to module untitled1 compiler arguments" only works until the project is reloaded

IDE. Completion

• KTIJ-20095 Optimize FilterOutKotlinSourceFilesScope#contains
• KTIJ-16250 Completion of override with return type annotated with TYPE_USE-targeted annotation suggests two duplicate entries

IDE. Debugger

• KTIJ-20716 JVM Debugger in common code can't get JVM-specific view on common code and fails
• KTIJ-18562 JVM debugger: coroutineContext.job causes "Failed to generate expression: KtNameReferenceExpression"
• KTIJ-20019 MPP Debugger: NSFE “Field not found” on accessing property with explicit getter from common code in Evaluate expression/Watcher
• KTIJ-19990 MPP Debugger: Evaluate expression for some stdlib in common source set fails with Method threw 'java.lang.ClassNotFoundException' exception.
• KTIJ-20929 MPP Debugger: in a project with single JVM target evaluation of expect function fails with 'NoSuchMethodError' exception in common context
• KTIJ-20956 Debugger: coroutine debugger fails to load sometimes
• KTIJ-20775 MPP Debugger: Evaluate expression for actual typealiases in jvm source set fails with Method threw 'java.lang.ClassNotFoundException' exception.
• KTIJ-20712 MPP Debugger: evaluator fails when evaluating expect function
• KTIJ-19344 K/N debugger shows all types as ObjHeader in variable view.

IDE. Gradle Integration

• KTIJ-20097 HMPP+Android Project that depends on pure Android Lib fails to import in IDEA
• KTIJ-20756 MPP targeting Android and JVM reports 'The feature "multi platform projects" is experimental and should be enabled explicitly'
• KTIJ-20745 Gradle: NSEE “Key main is missing in the map.” on project import in AS 212 + Kotlin 1.6.20
• KT-47570 MPP, IDE: kotlin-test-common leaks into dependencies of platform-specific source sets
• KTIJ-19541 IDE: Kotlin Facets aren't created for Gradle projects added via includeBuild
• KT-48882 MPP IDE import: Failing cinterop Gradle tasks shall not fail import
• KTIJ-18135 MPP, IDE: False positive "No value passed for parameter" in CommonTest when expect declaration has default value and actual does not

IDE. Inspections and Intentions

New Features

• KTIJ-12437 Add inspection to detect redundant (obsolete, unused) @OptIn annotations
• KTIJ-15780 Add quickfix for migration of Experimental -> RequiresOptIn
• KTIJ-18865 Provide quick fixes for OptIn markers on forbidden targets
• KTIJ-18439 Make suggestions for applying opt-in quickfixes more distinct
• KTIJ-19985 Provide quickfix for SAFE_CALL_WILL_CHANGE_NULLABILITY diagnostic

Fixes

• KTIJ-20550 False positives in "Unnecessary @OptIn annotation" inspection
• KTIJ-20993 Quick-fix for NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS leads to unreachable code
• KTIJ-20557 Quick fix to add Any as an upper bound for type parameter to make it non-nullable
• KTIJ-20827 Process type mismatch compiler warnings to provide a corresponding quick fix
• KTIJ-12578 "Make abstract" quick fix for missing abstract members implementations could warn of potentially broken inheritance
• KTIJ-20425 Quick fix to replace @NotNull parameter type T with a definitely non-nullable type T & Any
• KTIJ-19997 Inspection "Possibly blocking call in non-blocking context could lead to thread starvation" suggests "Wrap call in 'withContext'" resulting in red code
• KTIJ-18291 Quickfix "Add @OptIn() annotation" adds the annotation to primary constructor when invoked on primary constructor parameter
• KTIJ-19512 Implement IDE support for new rules of deprecation inheritance
• KTIJ-20156 Exception when applying 'Convert to with'
• KTIJ-20290 Forbid "move to constructor" intention if class contains secondary constructor
• KTIJ-20288 Forbid "move to constructor" intention for actual classes with actual constructor
• KT-49736 Introduce import alias fails when qualifier is unresolved
• KTIJ-18743 "Redundant nullable return type" applied on actual method doesn't change the signature of expect
• KTIJ-12343 Inspection "Sealed sub-class has no state and no overridden equals" is applied incorrectly to expect/actual declarations of sealed classes with nested subclasses
• KTIJ-19406 The "Add @OptIn(...)" quick fix does not shorten the annotation when adding an argument to the existing annotation
• KTIJ-12351 generate equals & hashCode() by identity intention generates incompilable code for multiplatform project modules
• KTIJ-13227 Forbid "move property to constructor" for actual classes with actual constructor having at least one parameter already
• KTIJ-11328 No quick fixes are suggested for annotation from experimental API used with file target
• KTIJ-14427 Meta-annotation value isn't updated for all the corresponding parts of a multiplatform annotation
• KTIJ-19735 NSME org.jetbrains.kotlin.idea.quickfix.KotlinSingleIntentionActionFactory org.jetbrains.kotlin.idea.quickfix.RemoveModifierFix on IJ212 + Kotlin master

IDE. Navigation

• KTIJ-18145 IDE freeze on 'Show Usage'

IDE. Refactorings. Extract Function

• KTIJ-10026 Refactor / Extract function: Adds unnecessary nullability annotations for parameters coming from NotNull or Nullable Java methods
• KTIJ-15823 Refactor / Extract Function: resulted declaration gets no @OptIn from original function when necessary

IDE. Refactorings. Move

• KTIJ-5661 [Tests] MoveRefactoring: Fix ignored incorrect tests of crossmodule declaration moving

IDE. Wizards

• KTIJ-19232 New project wizard: delete MPP Mobile-Library and Application templates
• KTIJ-20878 Unable to create project with Kotlin Project Wizard when JDK 17 is used.
• KTIJ-20244 Compose MPP project from wizard requires minCompileSdk=31
• KTIJ-20781 Update kotlin-wrappers version in wizard

JS. Tools

• KT-47387 KJS: Support Apple Silicon for node distrib download

JavaScript

New Features

• KT-44494 KJS / IR: Allow enum classes to be exported
• KT-43224 KJS: Allow using inline classes in external types
• KT-35100 Make Char inline class in K/JS
• KT-42936 KJS IR: Support js-code test directives similar to legacy
• KT-47525 KJS / IR: Support protected members in d.ts generation
• KT-50110 KJS / IR: Enable properties lazy initialization by default

Performance Improvements

• KT-46443 KJS / IR: Improve CharArray and Char performance
• KT-45665 KJS / IR: equals on inline value classes is boxed
• KT-43644 KJS / IR: Avoid creating lambda classes

Fixes

• KT-51685 KJS / IR: TypeError: collection.iterator_jk1svi_k$ regression in Kotlin 1.6.20-RC2
• KT-51523 KJS IR: "Uncaught TypeError: a._get_length__2347802853_w7ahp7_k$ is not a function"
• KT-51700 KJS / IR: Compiler uses wrong function with List<List>
• KT-51222 KJS / IR: "RangeError: Maximum call stack size exceeded": Default function overloads marked with @JsExport are broken
• KT-45054 KJS: Export secondary constructors as class static methods
• KT-37916 KJS: .d.ts generation not working for enum classes
• KT-48199 KJS / IR: Improve error message for linkage problems
• KT-51030 KJS / IR: internal class that implements public interface is missing getters
• KT-45434 KJS: "WRONG_EXPORTED_DECLARATION" when using JsExport on interfaces
• KT-50934 KJS / IR: Re-export all JS-exports from the main module for the multi-module mode
• KT-45620 KJS / IR: Remainder of division of Int.MIN_VALUE by -1 is negative zero (-0)
• KT-44981 KJS / IR crashes on kotlin.js.js calls with complex constexpr
• KT-41964 KJS IR: Reference to local variable and parameter from js fun could be broken unexpectedly
• KT-50682 Kotlin/JS: IR + IC: TypeError "Cannot read properties of undefined" when properties from different sources refer one another in initializers
• KT-50175 Kotlin/JS, IR: with incremental compilation top level properties initialization is not lazy
• KT-40236 KJS: IR. Invalid override for external field with @JsName
• KT-46525 KJS / IR: Generate context-dependent names for lambdas and object expressions
• KT-49779 KJS / IR: Exported abstract class implementing interface not export interfaces member in d.ts
• KT-49773 KJS / IR: Exported enum implementing interface
• KT-41912 KJS / IR: generates invalid defineProperty methods for class hierarchies
• KT-46225 KJS IR: tailrec function with capturing lambda in default parameter value leads to UninitializedPropertyAccessException at compile time
• KT-50528 Kotlin/JS: IR + IC: TypeError: "combined.get_icpjjy_k$ is not a function" for code calling GlobalScope.launch {}
• KT-50512 KJS / IR: IC failed with const val in inline fun
• KT-49738 Ensure that @AfterTest is invoked after the @Test function completes for asynchronous tests
• KT-45542 KJS / IR: "IllegalStateException" for method with default argument in expect class
• KT-50464 KJS IR: Functions with optional parameters and stable names are exported without @JsExport
• KT-43374 KJS / IR: "class org.jetbrains.kotlin.js.backend.ast.JsIf cannot be cast to class org.jetbrains.kotlin.js.backend.ast.JsExpressionStatement" caused by if-else expression inside when
• KT-20791 ushr Behavior differs in Javascript and Java targets
• KT-49844 KJS / IR: "IllegalStateException: IrSimpleFunctionSymbolImpl is already bound" with callable reference
• KT-46961 KJS / IR: "IllegalStateException: Can't find name for declaration" when external object contains enum class
• KT-43191 KJS / IR: static companion field is not static in d.ts
• KT-39891 [KJS / IR] String interpolation and byte shift round Long value
• KT-50040 JS IR: "Function must be an accessor of corresponding property" exception on private properties with getter in an exported class
• KT-49878 Kotlin/JS, IR: incremental compilation fails with CCE: "class StageController cannot be cast to class WholeWorldStageController"
• KT-46202 KJS / IR: "IllegalStateException" on exported value class
• KT-42039 KJS / IR: JsQualifier annotation can cause conflicts with built-in functions
• KT-39364 KJS: Can't export sealed class/object with subclasses inside the body to typescript definition
• KT-47360 KJS / IR: js() function with string val
• KT-47376 KJS / IR: Incorrect d.ts generation for sealed classes
• KT-47767 KJS / IR: "IllegalStateException" with inline function with several lambda invocation declared through typealias
• KT-47342 KJS / IR: "StackOverflowError" on InlinerTypeRemapper.remapTypeArguments
• KT-46218 KJS / IR: Incorrect result for local tailrec function called from capturing inline lambda
• KT-45056 KJS / IR: Inconsistent ordinal property value for enum classes
• KT-47096 KJS / IR: Console.log introduces spaces between each character
• KT-47516 KJS / IR: Wrong behavior when trying to access property in enum entry
• KT-47806 KJS / IR: "IllegalStateException" with invocation of extension function with generic and lambda parameter on String.Companion
• KT-49225 KJS: Default value for value class parameter is not considered
• KT-49326 KJS / IR: Overridden properties should not be exported
• KT-49363 KJS / IR: Nested declarations inside exported object are not exported
• KT-49300 KJS: Source map generator leaks source files descriptors when source embedding is enabled
• KT-40525 KJS IR: investigate issues with using kotlin-wrappers
• KT-50197 KJS IR: using APIs in different packages but with same method name generates clashes
• KT-45958 KJS: Line breaks are missing in js files after If-expression
• KT-40213 KJS: fix and "unmute" cases from .../nonReifiedTypeParameters/ "muted" while fixing KT-38771
• KT-50152 Kotlin/JS: with incremental compilation browserRun / nodeRun produce no output
• KT-50315 Kotlin/JS: building project with some dependencies fails: IAE: "Duplicate definition"
• KT-50203 JS IR BE: new IC for lowerings
• KT-43250 KJS / IR: "Can't find name for declaration FUN" with Json#encodeToString as function reference
• KT-46992 KJS / IR: Incorrect boxing of inline classes returned by crossinline suspend lambdas
• KT-49776 KJS / IR: inliner doesn't handle inner class functions referring outer this
• KT-49849 KJS / IR: Access of exported member properties should be by its stable name
• KT-49850 KJS / IR: Member properties in exported class should be getter/setter in d.ts

Language Design

• KT-19423 Script: reference from class to script top-level member is incompilable
• KT-21197 Support cross platform common implementations
• KT-42435 Prototype multiple receivers
• KT-48385 Deprecate confusing grammar in when-with-subject
• KT-49542 FIR: Smart cast may lead to inconsistent inference result
• KT-23727 Internal declarations from other module in star imports should have lower priority than public declarations from default imports
• KT-50251 Support language version 1.3 in Kotlin 1.6.20
• KT-17765 Ambiguity between SAM adapters when one SAM interface is sub type of another
• KT-10926 False overload resolution ambiguity when both vararg and collection match
• KT-41214 JDK 17: Emit PermittedSubclasses attribute when compiling sealed classes

Libraries

• KT-44089 Java version checking doesn't work on Android
• KT-50033 Some packages of kotlin-stdlib with public API are not exported in module-info
• KT-48367 Using synchronized on captured object leads to slow JVM execution
• KT-49721 KJS: Regex("\b").findAll yields infinite sequence when a zero length match is found before a surrogate pair (e.g. emoji)

Native

New Features

• KT-49463 --dry-run flag for llvm_builder/package.py

Fixes

• KT-51359 Native: the compiler doesn't work on macOS 12.3 Beta
• KT-49144 Kotlin/Native executable early segmentation fault
• KT-49348 KONAN_NO_64BIT_ATOMIC does not guard Kotlin_AtomicLong_addAndGet
• KT-42500 KLIB: K/N compiler cannot link with a library with incorrect symbol in the name or the path
• KT-49395 K/N: After 1.5.20, compiling code including KSuspendFunction3 to framework leads to "Assertion failed at parametersAssociated"
• KT-49967 Kotlin iOS regex issue
• KT-49873 Native does not sort Strings correctly
• KT-49347 androidNativeArm32 binaries crash when using atomic operations
• KT-49597 Kotlin/Native: Exporting the Arrow library into the framework causes StackOverflowError in the Devirtualization phase
• KT-49790 "Undefined symbols" error when linking project with kotest 5.0.0.RC and Kotlin 1.6

Native. Build Infrastructure

• KT-48625 Native: distribution doesn't contain sources for kotlin.test

Native. C Export

• KT-47828 Kotlin/Native: Kotlin exception is not filtered out on interop border when producing a dynamic library with compiler caches enabled

Native. C and ObjC Import

• KT-35059 Better "could not build module" cinterop report
• KT-49768 Kotlin/Native: Add -Xoverride-konan-properties to cinterop.

Native. ObjC Export

• KT-47399 Kotlin Native - Objective-C with Swift 5.5 Async Function Needs Returning KotlinUnit
• KT-48282 Kotlin sealed class roots and abstract classes within sealed hierarchies have their constructors exposed to Objective-C/Swift
• KT-46866 Memory consumption / performance of Kotlin classes with String property in KMP project on iOS Swift

Native. Platform Libraries

• KT-50045 Kotlin/Native: Re-enable disabled Hypervisor framework
• KT-47331 Kotlin/Native: support Xcode 13 SDKs

Native. Platforms

• KT-48078 Native: Support non-NativeActivity Android executables

Native. Runtime

• KT-48424 Support resolving source locations using libbacktrace
• KT-51586 SIGSEGV on worker7 test
• KT-50491 Kotlin/Native: Deadlock in the Ktor server tests with the new memory manager

Native. Runtime. Memory

• KT-50879 Kotlin/Native: Stabilize Concurrent Sweep GC
• KT-50948 Kotlin/Native: Concurrent Sweep GC hangs on Windows in GCStateHolder::waitEpochFinished/waitScheduled
• KT-49497 iOS Swift "runtime assert: Must be positive" and "runtime assert: cycle collector shall only work with single object containers"
• KT-50026 Kotlin/Native: Make AtomicReference behave like FreezableAtomicReference with the new MM
• KT-49013 Kotlin/Native: Correctly switch thread state to native for spin locks

Native. Testing

• KT-48561 Test sideEffectInTopLevelInitializerMultiModule fails with new MM

Reflection

• KT-50198 Reflection: NPE from kotlin.jvm.internal.Intrinsics.areEqual with Spock

Tools. Android Extensions

• KT-50784 kotlin-android-extensions produces unbound symbol under _$_findViewCache
• KT-50627 NullPointerException when using kotlin-android-extensions synthetic after updating Kotlin to 1.6.10
• KT-50887 kotlin-android-extensions plugin breaks when package attribute missing from AndroidManifest.xml

Tools. CLI

• KT-51309 Add JVM target bytecode version 18
• KT-48027 "Module ... cannot be found in the module graph" with module-info in META-INF/versions
• KT-50695 Compiling into IR backends with language version 1.3 is not rejected
• KT-46329 Deprecated -Xjvm-default values are not reported
• KT-51025 JVM CLI compiler takes class file from classpath instead of input java source file
• KT-50889 AnalysisHandlerExtension multiple round execution is broken on Kotlin/MultiPlatform with expectActualLinker=true flag
• KT-48417 CLI: boolean -X arguments accept a value after '=' which is ignored
• KT-11164 Allow running class files with '.class' extension in 'kotlin' script
• KT-46171 NoClassDefFoundError produced when running kotlin script

Tools. Commonizer

• KT-48568 [Commonizer] timespec properties are not commonized in kotlinx.coroutines
• KT-46257 MPP: Stdlib included more than once for an enabled hierarchical commonization
• KT-49735 [Commonizer] :commonizeNativeDistribution fails for projects with two or more same native targets
• KT-48856 MPP: Unable to resolve c-interop dependency for test compilation in an intermediate source set with the only platform
• KT-48288 [Commonizer] platform.posix.timespec.tv_sec not commonized in OKIO
• KT-47574 [Commonizer] TypeAliasTypeCommonization: Properly substitute underlying type arguments
• KT-48221 MPP: Too few targets specified if platform test source set depends on main
• KT-47100 [Commonizer] Commonize underlying type-alias types

Tools. Compiler Plugins

• KT-50718 Unable to serialize an object with a generic field
• KT-50764 Kotlin 1.6.10 custom serializers for a generic type receive the unit serializer on jvm
• KT-46444 JVM IR, serialization: "AssertionError: No such value argument slot in IrConstructorCallImpl: 0" with KSerializer of ClosedRange<Float>

Tools. Daemon

• KT-47522 Provide reasonable resolution strategy for OutOfMemoryError during compilation
• KT-51116 OOM user-friendly message isn't displayed if there is main exception caused by out of memory

Tools. Gradle

New Features

• KT-48620 Add build information into Gradle build scan
• KT-41689 Support statistics for Configuration Cache
• KT-49299 Add more flexible way for defining Kotlin compiler execution strategy
• KT-21056 Kotlin Gradle Plugin tasks execution should be parallelized by default

Performance Improvements

• KT-50664 Compile speed regression going from Kotlin 1.5.31 to 1.6.10 for incremental changes when Java class in a dependent child module w/ kapt is modified w/o a method/class signature change
• KT-48884 Configuration performance regression in Kotlin Gradle plugin 1.5.30
• KT-49782 Improve compilation task outputs snapshot performance

Fixes

• KT-51501 Gradle: 'java.lang.NoClassDefFoundError: com/gradle/scan/plugin/BuildScanExtension' on 1.6.0-RC when applying Enterprise Plugin from initscript
• KT-51588 Restoring from build cache breaks Kotlin incremental compilation
• KT-50620 Gradle Kotlin Plugin crashes in CI due to hostname resolving issue
• KT-49921 Setup basic release performance regression tests
• KT-51177 After updating from KGP 1.5.30 to 1.6.10, KotlinCompile is non-incremental given an Android resource change
• KT-48134 Debug log level causes build cache miss
• KT-50719 Kotlin Gradle Plugin may hang on writing statistics
• KT-48849 Cache miss due to empty directories in KotlinCompile inputs
• KT-49014 Disable Explicit API is not possible
• KT-48408 Build may fail with strict JVM target validation mode when project has no Kotlin sources
• KT-49107 Configuration cache: undeclared kotlin.caching.enabled system property read
• KT-50369 Deprecate kotlin.experimental.coroutines Gradle DSL option and kotlin.coroutines property
• KT-48046 Gradle Throws Exception From Kotlin Plugin: destinationDir must not be null
• KT-50037 Kotlin compile task registers more than one task action and their order of execution is counter-intuitive
• KT-49772 Kotlin in-process compilation does not release file handles
• KT-47215 KJS: "UninitializedPropertyAccessException: lateinit property fileHasher has not been initialized" when running kotlinNpmInstall or rootPackageJson locally
• KT-46406 Remove 'kotlin.parallel.tasks.in.project' build property

Tools. Gradle. JS

Performance Improvements

• KT-49037 KJS / Gradle: Configuration cache usage on large projects lead to high memory consumption by Gradle daemon

Fixes

• KT-51060 KJS / IR: Incorrect order of libraries with IC
• KT-49061 KJS / Gradle: Custom package.json handlers break configuration cache
• KT-35640 Kotlin/JS: Gradle: DCE devMode = true setting has no effect on incremental build
• KT-49095 KJS / Gradle: KotlinJsTest tasks increase configuration cache state size depending on number of modules in project
• KT-49253 KJS / Gradle: Error while evaluating property 'filteredArgumentsMap' of task ':compileProductionExecutableKotlinJs'
• KT-49902 Kotlin/JS: Gradle: with --debug it still runs yarn without --ignore-scripts
• KT-49808 KJS / Gradle: NPE when running node.js Mocha tests with configuration cache reuse
• KT-49530 KJS: Update Node.JS and Yarn
• KT-50930 KJS / IR: Incremental compilation cache building not consider multiple artifacts
• KT-50485 KJS / IR: Enable per-module by default
• KT-49445 KJS / IR: "AssertionError: Built-in class kotlin.Unit is not found" 1.5.31 fails on consuming artifacts built with 1.6.0
• KT-38040 Make Chrome Headless use "--no-sandbox" (configurable) - for Docker

Tools. Gradle. Multiplatform

• KT-46198 [Commonizer] c-interop commonization: Support publishing libraries compiled with commonized c-interop libraries
• KT-41641 MPP: NoSuchElementException: "Collection is empty" when android library is added but android() source set isn't
• KT-50567 commonizeNativeDistribution fails when enableGranularSourceSetsMetadata is set to true
• KT-50592 [Gradle][MPP] Mitigate isolated KGP classpath issues
• KT-51176 CInteropCommonization: Warn users about disabled cinterop commonization when cinterops are present in hmpp
• KT-49089 An annotation class annotated with @OptionalExpectation can not be used in another module with HMPP enabled
• KT-48818 False positive warning about used enableDependencyPropagation flag with enabled hierarchical mpp by default
• KT-49596 Composite Metadata Jar: Read location of cinterops from KotlinProjectStructureMetadata file
• KT-41823 Default arguments not work in iosMain metadata with enableGranularSourceSetsMetadata
• KT-50574 Only enable cinterop metadata transformation when 'kotlin.mpp.enableCInteropCommonization' is set

Tools. Gradle. Native

New Features

• KT-47633 Accept version when configuring cocoapods for kotlin/native
• KT-42630 CocoaPods Gradle plugin: Allow customization of podspec properties
• KT-48553 Kotlin/Native: use Gradle Shared Build Service to read konan.properties
• KT-47529 Read list of opt-in cacheable native targets from konan.properties

Fixes

• KT-49330 commonizeNativeDistribution: "ClassCastException: KotlinJvmProjectExtension_Decorated cannot be cast to class org.jetbrains.kotlin.gradle.dsl.KotlinProjectExtension"
• KT-49484 Kotlin/Native: XCFramework should include dSYM files for release artifacts
• KT-47768 Gradle MPP plugin: K/N targets break task configuration avoidance for assemble task
• KT-49971 Make 'embedAndSignAppleFrameworkForXcode' task visible for users
• KT-43815 [CocoaPods Plugin] Pod name cannot be changed
• KT-50105 Usage of XCFramework and cocoapods plugin leads to error in prepareKotlinBuildScriptModel task
• KT-42105 Multiplatform Cocoapod kotlin plugin doesn't support repo distribution
• KT-48808 XCFramework task fails when using static debug frameworks
• KT-42755 Cocoapods plugin using backslashes on Windows

Tools. JPS

• KT-51434 Language version 1.7 is absent in Kotlin Compiler settings
• KT-48399 Internal Error: Unknown version of LookupSymbolKeyDescriptor=-6
• KT-49177 JPS: Kotlin compiler doesn't recompile file that references Java constant in class body
• KT-46506 JPS: Kotlin compiler doesn't recompile file that references Java constant
• KT-47909 UtilsKt.recordPackageLookup is slow
• KT-47857 Class loaders clash when building kotlin pr

Note truncated.

Changelog

Compiler

Fixes

• KT-51352 "ClassCastException: class ScopeCoroutine cannot be cast to class Iterable" caused by coroutines and context receivers
• KT-51271 "ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3" with inlining of context function
• KT-50520 "NPE: containingDeclaration.ac…lDeclarationType.REGULAR) must not be null" with implicit type on self-referencing lambda in a builder
• KT-51471 Native: incorrect debug information when inheriting suspend fun invoke implementation
• KT-51353 IncompatibleClassChangeError: Expected non-static field com.soywiz.korim.color.Colors.BLACK

Native

• KT-37368 Native compiler fails to compile big projects

Native. Runtime

• KT-51586 SIGSEGV on worker7 test

Tools. JPS

• KT-51434 Language version 1.7 is absent in Kotlin Compiler settings

Tools. Gradle

• KT-51588 Restoring from build cache breaks Kotlin incremental compilation

Checksums

Changelog

Compiler

• KT-51302 Kotlin/Native 1.6.20-M1 compiler fails because of assertion in NativeAnnotationImplementationTransformer
• KT-51148 "AssertionError: At this stage there should be no remaining variables with proper constraints" caused by two type parameters
• KT-50970 Kotlin/Native: use arm instruction set instead of thumb-2 for iosArm32 and watchosArm32 targets
• KT-50843 Kotlin/Native: LLVM constant merge pass does not work for Kotlin constants
• KT-51157 JVM / IR: "IndexOutOfBoundsException: Index: 1, Size: 1" caused by interface hierarchy and UInt method parameter
• KT-50498 Exception after analysing an erroneous lambda
• KT-51062 Progressions resolve changing warning isn't reported for Java methods
• KT-51040 Type inference fails on 1.6: "Cannot use 'CapturedType(*)' as reified type parameter" with EnumSet and elvis operator
• KT-51022 Fix error messages for resolution ambiguity with stub types

Native

• KT-51359 Native: the compiler doesn't work on macOS 12.3 Beta

Native. Runtime. Memory

• KT-50879 Kotlin/Native: Stabilize Concurrent Sweep GC
• KT-50948 Kotlin/Native: Concurrent Sweep GC hangs on Windows in GCStateHolder::waitEpochFinished/waitScheduled

Tools. Android Extensions

• KT-50784 kotlin-android-extensions produces unbound symbol under _$_findViewCache

Tools. CLI

• KT-51309 Add JVM target bytecode version 18
• KT-51025 JVM CLI compiler takes class file from classpath instead of input java source file

Tools. Daemon

• KT-47522 Provide reasonable resolution strategy for OutOfMemoryError during compilation
• KT-51116 OOM user-friendly message isn't displayed if there is main exception caused by out of memory

Tools. Gradle

• KT-51177 After updating from KGP 1.5.30 to 1.6.10, KotlinCompile is non-incremental given an Android resource change
• KT-50719 Kotlin Gradle Plugin may hang on writing statistics
• KT-48849 Cache miss due to empty directories in KotlinCompile inputs

Tools. Gradle. JS

• KT-51060 KJS / IR: Incorrect order of libraries with IC
• KT-50930 KJS / IR: Incremental compilation cache building not consider multiple artifacts

Tools. Gradle. Multiplatform

• KT-50592 [Gradle][MPP] Mitigate isolated KGP classpath issues
• KT-51176 CInteropCommonization: Warn users about disabled cinterop commonization when cinterops are present in hmpp

Tools. Gradle. Native

• KT-49330 commonizeNativeDistribution: "ClassCastException: KotlinJvmProjectExtension_Decorated cannot be cast to class org.jetbrains.kotlin.gradle.dsl.KotlinProjectExtension"

Tools. Kapt

• KT-48402 Kapt throws "Fatal Error: Unable to find package java.lang in classpath or bootclasspath" with JDK 16 and Kotlin 1.5.30
• KT-48450 Allow to configure additional jvm arguments for 'KaptWithoutKotlincTask`
• KT-41456 Kotlin compilation failure after successful kapt causes invalid incremental builds

Checksums

Changelog

Compiler

New Features

• KT-48217 Add an annotation JvmDefaultWithCompatibility to allow generating DefaultImpls classes if -Xjvm-default=all option is used
• KT-49857 Require Xcode 13 for building Kotlin/Native compiler
• KT-47701 Support instantiation of annotation classes on Native
• KT-46085 Support experimental parallel compilation of a single module in the JVM backend
• KT-46603 Generate SAM-conversions to Java interfaces extending 'java.io.Serializable' as serializable using java.lang.invoke.LambdaMetafactory

Performance Improvements

• KT-50156 HMPP: Slow frontend/ide performance in OKIO (ExpectActualDeclarationChecker)
• KT-50073 Performance regression in adapted function references
• KT-50076 Performance regression in super call to an interface member in $DefaultImpls
• KT-50080 Performance regression in string template with generic property with primitive upper bound
• KT-50084 Performance regression in concatenation with 'String?'
• KT-50078 Performance regression in for-in-array loop
• KT-50039 Performance regression in inner class constructor call with default parameters
• KT-48784 An anonymous class has fields for variables that are only used in the constructor
• KT-42010 Generate IINC instruction for postfix increment in JVM_IR
• KT-48433 JVM_IR don't generate null check on 'this$0' parameter of inner class constructor
• KT-48435 JVM_IR ConstForLoopBenchmark performance regression
• KT-48507 JVM_IR ForLoopBenchmark regressions
• KT-48640 Performance regression in 'longDownToLoop' benchmarks
• KT-29822 Generate specialized bytecode for loops withIndex over unsigned arrays
• KT-48669 Generate optimizable counter loop for loops over indices of unsigned arrays
• KT-49444 Possible performance degradation with UInt downTo loop
• KT-48944 Possible performance regression with comparison of local KFunctions
• KT-17111 Eliminate redundant store/load instructions when the value stored is simple
• KT-36837 Generate more compact code for for-in-range loop in JVM_IR
• KT-48947 JVM / IR Possible performance regression with string templates
• KT-48931 JVM / IR: Performance degradation with string concatenation
• KT-36654 Generate more compact bytecode for safe call in JVM_IR

Fixes

• KT-48544 JVM / IR: "UnsupportedOperationException: Unknown structure of ADAPTER_FOR_CALLABLE_REFERENCE" with callable reference ::arrayOf
• KT-49658 NI: False negative TYPE_MISMATCH on nullable type with when
• KT-50978 [Native] Error while building static cache: NoSuchElementException at IrTypeInlineClassesSupport.getInlinedClassUnderlyingType(InlineClasses.kt:341)
• KT-50977 [Native] Error while building static cache: IllegalStateException: Class CLASS ENUM_ENTRY is not found at KonanIrlinkerKt.findClass(KonanIrlinker.kt:229)
• KT-50976 [Native] Error while building static cache: IllegalStateException: No descriptor found at DescriptorByIdSignatureFinder.findDescriptorForPublicSignature(DescriptorByIdSignatureFinder.kt:157)
• KT-51080 Line number in mapping for the first instruction is lost
• KT-49526 JVM IR: Function reference with non-denotable intersection type argument is not inlined and is incorrectly approximated
• KT-50399 Error: unexpected variance in super type argument: out @0
• KT-50649 JVM IR: ClassCastException when returning Result as generic type
• KT-50617 JVM IR: java.lang.IndexOutOfBoundsException "Empty list doesn't contain element at index 0" when class and interface have the same name and extension function is used
• KT-45693 False negative INCOMPATIBLE_TYPES with when with generic subject
• KT-50797 Implement fix for false negative UPPER_BOUND_VIOLATED with generic typealias using not all type parameters as arguments for underlying type
• KT-43493 NI: @BuilderInference prevents compilation error of "Operator '==' cannot be applied to 'Long' and 'Int'"
• KT-48945 JVM IR: special bridge for get is not generated in a Map subclass
• KT-49829 Wrong "cast can never succeed" diagnostic with builder inference
• KT-49828 Improve builder inference diagnostics with overload resolution ambiguity
• KT-50989 CCE cause by EmptySubstitutor in ResolutionWithStubTypesChecker
• KT-48899 Report warnings on overrides with wrong types nullability
• KT-49461 Implement prohibitation of access to members of companion of enum class from initializers of entries of this enum
• KT-49754 Kotlin/JS: @JsExport on enum class reports NON_EXPORTABLE_TYPE warning
• KT-49598 Misleading error message "Using @JvmRecord is only allowed with -jvm-target 15 and -Xjvm-enable-preview flag enabled"
• KT-44133 Inline classes: class literal in annotation arguments uses underlying type
• KT-47703 ClassCastException: Programmatically created annotation can't hold Array<KClass<*>>
• KT-47549 JVM / IR: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER CONTINUATION_CLASS caused by suspend function inside "fun interface" in another file
• KT-50120 HMPP: False positive [NO_VALUE_FOR_PARAMETER] for expect function usages
• KT-48499 Interface call with an inline/value parameter generates AbstractMethodError after rebuilding the module, but NOT the file.
• KT-49864 JVM IR: NoSuchMethodError calling default interface method with inline class return type in -Xjvm-default=all mode
• KT-49812 JVM / IR: "java.lang.VerifyError: Bad return type" when using Result type attribute + extension function with same name
• KT-49936 Extension property in a data class with the same name as the constructor parameter leads to incorrect component function being resolved and generated
• KT-48181 "ISE: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER" on creating instance of kotlin.Metadata
• KT-50215 VerifyError caused by missing cast after is check in when
• KT-49977 "Parameter specified as non-null is null" when inline class implements interface method with default parameters
• KT-50385 DUPLICATE_LABEL_IN_WHEN is reported on incorrect branches
• KT-49092 JVM: ArrayIndexOutOfBoundsException on compiling call with if expression and TODO() arguments
• KT-48987 JVM / IR: Smartcast, which never succeed, crashes the compiler
• KT-49998 JVM: missing default value for annotation parameter of an unsigned type
• KT-50277 Invalid bytecode generated for inline lambda in suspend function
• KT-44561 FIR DFA: extract non-null info from comparison against variable with initial constant value
• KT-44560 FIR DFA: propagate non-null info to original variables in not-null assertion or cast expression
• KT-50258 equals() returns false on the same enum instances if we check it for the second time in when
• KT-47483 JVM IR: "NoSuchElementException: Sequence contains no element matching the predicate" on compiling Array instantiation with TODO
• KT-49765 JVM: ClassCastException when trying to add object to EmptyList
• KT-46879 "AssertionError: Stack should be spilled before suspension call" with Flow and reified type
• KT-50172 "AssertionError: Not a callable reflection type" on local function reference with the same name as local variable
• KT-49443 JVM IR, Script: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" with constructor call of class that has a top-level extension function call
• KT-50193 Garbage collection is not working the same way after jvm-ir-backend change
• KT-19424 Compilation exception for script with property delegate calling operator invoke on an object
• KT-43995 Script: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" if companion object initializer calls method on list
• KT-30616 Script: "Don't know how to generate outer expression" for top-level variable reference from static context (companion object, enum)
• KT-47000 Allow graceful migration to -Xjvm-default=all-compatibility by allowing to inherit from interfaces even in the old (-Xjvm-default=disable) mode
• KT-50171 JVM IR: "UninitializedPropertyAccessException: Parent not initialized: IrVariableImpl" on SAM-converted property setter reference with Double parameter inside lambda
• KT-50140 Internal error on explicit string concatenation of generic type value with 'String' upper bound
• KT-49992 Anonymous object should not have access to private members from supertypes
• KT-49973 Check existing of default error message for all diagnostics
• KT-50019 Property delegated to callable reference: "ISE: Local class should have its name computed in InventNamesForLocalClasses" with -Xno-optimized-callable-references
• KT-49645 JVM / IR: "IllegalStateException: Local class should have its name computed" caused by default suspend function in interface and value class
• KT-50028 Incorrect implicit casts from Unit
• KT-49615 JVM / IR: "Exception during IR lowering" with list of value classes with non-trivial constructor inside suspend lambda
• KT-49127 FIR: smart cast is not performed after comparison
• KT-48708 Incorrect cast from Unit to Int
• KT-48376 FIR: False positive UNITIALIZED_VARIABLE after try/finally with return from try
• KT-48113 FIR: (false) positive EQUALITY_NOT_APPLICABLE for intersection with platform type
• KT-48305 FIR: incorrect raw type cast
• KT-48378 FIR: synthetic accessor lowering should not attempt to modify other files
• KT-48634 FIR: false property-setter-function resolve cycle
• KT-48621 FIR: SyntheticAccessorLowering should not attempt to modify other files for protected JvmField
• KT-48381 Invalid LLVM module: verification failure of createInlineClassInArgumentPosition.kt
• KT-48527 Native: top-level properties in files with @Test functions are initialized eagerly even if lazy initialization is enabled
• KT-48559 IllegalArgumentException: Unexpected super type argument: * @ 0 during IR lowering
• KT-48687 IR dump mismatch after deep copy with symbols in IR text test
• KT-44811 [FIR] Exception in body resolve of new contracts
• KT-48363 FIR behaves differently in case of resolution between classifier and top-level property
• KT-48801 "AssertionError: Stack should be spilled before suspension call" with Flow and crossinline
• KT-46389 JVM / IR: "ClassCastException: class IrGetValueImpl cannot be cast to class IrConst" with inheritance of supertypes member functions with similar signatures
• KT-47797 Regression during migration to 1.6 in compiler
• KT-47987 Can't infer a postponed type variable based on callable reference receiver type
• KT-48446 "IllegalStateException: IrErrorType (getErasedUpperBound)" caused by suspend function reference
• KT-48651 Collect intermediate annotations during type expanding
• KT-48754 JVM IR: <clinit> in EnclosingMethod leads to IncompatibleClassChangeError on Android 5.0
• KT-45034 Use the new type inference for top-level callable references
• KT-49001 OptIn marker should spread from class to its members, taking into account real dispatch receiver type
• KT-49038 Generics are discriminated during callable references resolution (false negative)
• KT-48954 JVM IR: IllegalAccessError when using Java method reference in constructor
• KT-48284 JVM / IR: "IllegalStateException: Function has no body: FUN STATIC_INLINE_CLASS_REPLACEMENT" caused by inline member toString of value class and string interpolation
• KT-49053 JVM / IR: "AssertionError: Unbound symbols not allowed" on inheriting a protected Java method that returns a package private class from a differently-named file
• KT-49106 JVM: infinite recursion with overridden default suspend interface method where override calls super
• KT-45345 FIR DFA: FirDataFlowAnalyzer seems to add wrong type constraints for type parameters
• KT-44513 FIR DFA: extract non-null info from x?.y!!
• KT-44559 FIR DFA: propagate non-null info from not-null assertion (!!)
• KT-49073 FIR: REDUNDANT_MODIFIER and DEPRECATED_MODIFIER_PAIR should be warnings
• KT-46371 FIR: Investigate FunctionType -> ExtensionFunctionType coercion
• KT-49078 FIR: false positive TYPE_VARIANCE_CONFLICT
• KT-47135 FIR: local class references does not compile
• KT-48600 NON_TAIL_RECURSIVE_CALL missing for calls inside lambda
• KT-48602 NON_TAIL_RECURSIVE_CALL missing for calls with explicit dispatch receiver to a singleton
• KT-48982 JVM / IR: KotlinNothingValueException caused by function with local object
• KT-49087 FIR: false positive REPEATED_ANNOTATION
• KT-48648 JVM IR: "AssertionError: Should be primitive or nullable primitive type" with @JvmField generic property with Number upper bound
• KT-49069 FIR: False positive INAPPLICABLE_JVM_NAME on getter
• KT-49203 JVM IR: "AssertionError: Unbound symbols not allowed" with lateinit var and plusAssign operator convention call
• KT-48993 JVM / IR: "IllegalStateException: Validation failed in file <multi-file facade ...>" using @JvmMultifileClass and one of the symbols in the file exposes a @JvmInline value class
• KT-48938 FIR: Investigate how priorities should work in case SAM-conversion + type parameters
• KT-49129 FIR: false positive of INNER_CLASS_OF_GENERIC_THROWABLE_SUBCLASS
• KT-49076 FIR: false positive "An annotation argument must be compile-time constant" on array of imports
• KT-49222 FIR: StackOverflow in MethodSignatureMapper
• KT-49083 FIR erroneously requires default value parameters for override calls when imported from object
• KT-49135 FIR: ambiguity between type alias and function
• KT-49134 FIR makes no difference between lambda with empty parameter list and without explicit parameter list
• KT-49301 FIR: Unresolved reference: <init> for object inherited from inner class
• KT-49070 FIR: ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED with type parameter / class conflict
• KT-49133 FIR: protected java.lang.Throwable constructor is not available
• KT-49407 JVM / IR: "java.lang.VerifyError: Bad local variable type" with "Int.mod" inside "Long.mod" and non-trivial argument
• KT-44975 SUBCLASS_CANT_CALL_COMPANION_PROTECTED_NON_STATIC: confusing error message
• KT-38698 MANY_INTERFACES_MEMBER_NOT_IMPLEMENTED error message: interface is called a "class"
• KT-45001 Confusing warning message "This class can only be used with the compiler argument" for @OptIn annotation
• KT-49411 JVM / IR: NullPointerException during IR lowering with @JvmField property in loop range
• KT-49260 FIR: make FirBasedSymbol hierarchy to correspond FirDeclaration hierarchy
• KT-49289 FIR: false positive "return required" for if/else with inlined return in branch
• KT-49316 JVM / IR: "AssertionError: SyntheticAccessorLowering should not attempt to modify other files!" caused by unreachable code which try to modify val from the other package
• KT-45915 NoDescriptorForDeclarationException: Descriptor wasn't found for declaration FUN with circular module dependencies in JPS
• KT-49288 FIR2IR: consider generating all fake override calls properly
• KT-42784 FIR2IR: first create fake overrides, then bind overridden to them
• KT-48816 Kotlin/Native Symbol for public platform.darwin/NSObject|null[100] is unbound
• KT-49372 JVM / IR: Incorrect work of the loop optimization for mutable variable
• KT-49356 Native: UnsupportedOperationException: RETURNABLE_BLOCK caused by nested return with boxing and inline
• KT-49659 JVM IR: Missing value class mangling in SAM wrappers for fun interfaces from different modules
• KT-47101 Incorrect scope for supertypes in companion objects
• KT-49360 Invalid LLVM module: "inlinable function call in a function with debug info must have a !dbg location"
• KT-48430 JVM: ClassCastException with inline class as generic argument for type parameter used in a function type
• KT-49575 IllegalArgumentException: Unhandled intrinsic in ExpressionCodegen with circular module dependencies in JPS
• KT-47669 IR inliner doesn't handle inner class functions referring outer this
• KT-48668 JVM IR: "ISE: Value at CLASS must not be null for CLASS" for modules with a dependency cycle
• KT-49370 JVM / IR: "java.lang.VerifyError: Bad local variable type" with "fun Long.mod" and non-trivial argument
• KT-46744 Memory Leaks in Kotlin daemon
• KT-48806 False-negative USED_AS_EXPRESSION for unreachable catch clauses
• KT-45972 FIR: type is incorrectly resolved to private
• KT-46968 Remove FirCompositeScope from type resolve
• KT-49072 FIR: accidental resolve to private-in-file type
• KT-34822 FIR scopes: deal with nested / inner classes and type parameter priority
• KT-49702 Exception from RENDER_WHEN_MISSING_CASES diagnostic on malformed sealed class inheritor
• KT-49860 [FIR] Add smartcast expression to synthetic subj access
• KT-49836 Inference fails on lambda and adjacent function expressions with receiver
• KT-49832 Inference fails on lambda for function types with extension parameter
• KT-49793 JVM: IncompatibleClassChangeError: Expected non-static field when property delegation uses receiver of another delegated property
• KT-44022 Excessive diagnostics range for DECLARATION_CANT_BE_INLINED
• KT-48690 VERSION_REQUIREMENT_DEPRECATION_ERROR message: use current compiler version instead of language version
• KT-49609 Incorrect grammar in DATA_CLASS_NOT_PROPERTY_PARAMETER error message
• KT-49600 Misspelled error message for non-constructor properties with backing fields in @JvmRecord class
• KT-49339 Warn about synchronizing on value classes
• KT-49950 Compilation failed: An operation is not implemented: IrBasedTypeParameterDescriptor
• KT-23890 Default arguments are not transferred from expect generic member functions
• KT-48811 Expect/actual class with default constructor argument values can not be instantiated from a shared source set without passing arguments (with HMPP enabled)
• KT-48106 FIR: incorrect type inference in provideDelegate receiver
• KT-48325 Safe call operator prevents object from being garbage collected before leaving function
• KT-48104 FIR does not see NotNull/Nullable annotations on type arguments
• KT-46812 [FIR] Make FIR diagnostics not related to Diagnostics from FE 1.0
• KT-37374 [FIR] Add CheckInfixModifier resolution stage
• KT-38351 FIR: Support CheckOperatorModifier resolution stage
• KT-39614 [FIR] Fix building CFG for different candidates of plus assign call
• KT-40197 [FIR] Strange Behaviour of Type Arguments
• KT-40362 [FIR] Match type arguments with type parameters of corresponding qualifier
• KT-40375 FIR: No transformation implicit type -> error type for function value parameters
• KT-40585 [FIR] Incorrect type for 1/1.0
• KT-42525 [FIR] Incorrect IR produced for java.lang.Byte.MAX_VALUE
• KT-43359 FIR: Check applicability type for callable reference with unbound receiver
• KT-43378 FIR: Support or prohibit via call checker callable references to member extensions
• KT-43289 FIR: Correctly load irrelevant override for special built-ins
• KT-44558 Annotation arguments const expr support is missing in FIR
• KT-45223 [FIR] Ambiguity between explicit and synthetic removeAt
• KT-42215 FIR: callable reference resolution with type constraints at call-sites
• KT-45520 FIR: NONE_APPLICABLE for unsafe call to function with overloads instead of UNSAFE_CALL
• KT-46410 [FIR] Transform of FirAugmentedArraySetCall leaves erroneous nodes in control flow graph
• KT-46421 FIR: Investigate builder-inference cases
• KT-43948 FIR: hidden unresolved callable reference
• KT-46558 FIR DFA: run once contract is not considered when analyzing lambda
• KT-47125 FIR: Do not avoid trivial constraints if they aren't from upper bounds
• KT-43691 FIR: false positive VARIABLE_INITIALIZER_IS_REDUNDANT with usage in try...finally
• KT-37311 [FIR] Support inference of callable references with type variable as expected type
• KT-31972 Error type encountered: org.jetbrains.kotlin.types.ErrorUtils$UninferredParameterTypeConstructor@1f5b38c2 (ErrorType).
• KT-48761 Report NO_TAIL_CALLS_FOUND on 'tailrec' modifier, not on the whole function header
• KT-47647 NI: Function reference to Java static method can't compile if passed directly as KFunction1 parameter
• KT-46995 Fix setters implicit types only resolved on full body resolve
• KT-46359 Kotlin 1.5 lambda is not Java-serializable by default
• KT-49282 FIR: suspend conversion does not work inside suspend lambda
• KT-48953 FIR: implement diagnostic DELEGATE_USES_EXTENSION_PROPERTY_TYPE_PARAMETER
• KT-38813 FIR: Report INSTANCE_ACCESS_BEFORE_SUPER_CALL diagnostic on receiver usages in secondary constructors headers
• KT-49657 FIR: accidental override with get:JvmName
• KT-49655 FIR: smart cast is not performed after update of var to not-null value in branch

IDE

• KT-42194 OOME: Java heap space from incremental compilation

IDE. Gradle Integration

• KT-47570 MPP, IDE: kotlin-test-common leaks into dependencies of platform-specific source sets

JavaScript

New Features

• KT-43224 KJS: Allow using inline classes in external types
• KT-35100 Make Char inline class in K/JS
• KT-47525 KJS / IR: Support protected members in d.ts generation
• KT-44494 KJS / IR: Allow enum classes to be exported
• KT-50110 KJS / IR: Enable properties lazy initialization by default

Performance Improvements

• KT-43644 KJS / IR: Avoid creating lambda classes

Fixes

• KT-50934 KJS / IR: Re-export all JS-exports from the main module for the multi-module mode
• KT-45620 KJS / IR: Remainder of division of Int.MIN_VALUE by -1 is negative zero (-0)
• KT-46225 KJS IR: tailrec function with capturing lambda in default parameter value leads to UninitializedPropertyAccessException at compile time
• KT-50512 KJS / IR: IC failed with const val in inline fun
• KT-49738 Ensure that @AfterTest is invoked after the @Test function completes for asynchronous tests
• KT-45542 KJS / IR: "IllegalStateException" for method with default argument in expect class
• KT-50464 KJS IR: Functions with optional parameters and stable names are exported without @JsExport
• KT-43374 KJS / IR: "class org.jetbrains.kotlin.js.backend.ast.JsIf cannot be cast to class org.jetbrains.kotlin.js.backend.ast.JsExpressionStatement" caused by if-else expression inside when
• KT-20791 ushr Behavior differs in Javascript and Java targets
• KT-37916 KJS: .d.ts generation not working for enum classes
• KT-49844 KJS / IR: "IllegalStateException: IrSimpleFunctionSymbolImpl is already bound" with callable reference
• KT-46961 KJS / IR: "IllegalStateException: Can't find name for declaration" when external object contains enum class
• KT-43191 KJS / IR: static companion field is not static in d.ts
• KT-39891 [KJS / IR] String interpolation and byte shift round Long value
• KT-50040 JS IR: "Function must be an accessor of corresponding property" exception on private properties with getter in an exported class
• KT-49878 Kotlin/JS, IR: incremental compilation fails with CCE: "class StageController cannot be cast to class WholeWorldStageController"
• KT-46202 KJS / IR: "IllegalStateException" on exported value class
• KT-42039 KJS / IR: JsQualifier annotation can cause conflicts with built-in functions
• KT-39364 KJS: Can't export sealed class/object with subclasses inside the body to typescript definition
• KT-47360 KJS / IR: js() function with string val
• KT-47376 KJS / IR: Incorrect d.ts generation for sealed classes
• KT-47767 KJS / IR: "IllegalStateException" with inline function with several lambda invocation declared through typealias
• KT-47342 KJS / IR: "StackOverflowError" on InlinerTypeRemapper.remapTypeArguments
• KT-46218 KJS / IR: Incorrect result for local tailrec function called from capturing inline lambda
• KT-45056 KJS / IR: Inconsistent ordinal property value for enum classes
• KT-47096 KJS / IR: Console.log introduces spaces between each character
• KT-47516 KJS / IR: Wrong behavior when trying to access property in enum entry
• KT-47806 KJS / IR: "IllegalStateException" with invocation of extension function with generic and lambda parameter on String.Companion
• KT-49225 KJS: Default value for value class parameter is not considered
• KT-49326 KJS / IR: Overridden properties should not be exported
• KT-49363 KJS / IR: Nested declarations inside exported object are not exported
• KT-49300 KJS: Source map generator leaks source files descriptors when source embedding is enabled
• KT-50197 KJS IR: using APIs in different packages but with same method name generates clashes
• KT-50203 JS IR BE: new IC for lowerings
• KT-43250 KJS / IR: "Can't find name for declaration FUN" with Json#encodeToString as function reference
• KT-46992 KJS / IR: Incorrect boxing of inline classes returned by crossinline suspend lambdas
• KT-49776 KJS / IR: inliner doesn't handle inner class functions referring outer this
• KT-49849 KJS / IR: Access of exported member properties should be by its stable name
• KT-49850 KJS / IR: Member properties in exported class should be getter/setter in d.ts

Language Design

• KT-42435 Prototype multiple receivers
• KT-48385 Deprecate confusing grammar in when-with-subject
• KT-50251 Support language version 1.3 in Kotlin 1.6.20
• KT-19423 Script: reference from class to script top-level member is incompilable
• KT-17765 Ambiguity between SAM adapters when one SAM interface is sub type of another
• KT-10926 False overload resolution ambiguity when both vararg and collection match
• KT-41214 JDK 17: Emit PermittedSubclasses attribute when compiling sealed classes

Libraries

• KT-44089 Java version checking doesn't work on Android
• KT-50033 Some packages of kotlin-stdlib with public API are not exported in module-info
• KT-48367 Using synchronized on captured object leads to slow JVM execution
• KT-49721 KJS: Regex("\b").findAll yields infinite sequence when a zero length match is found before a surrogate pair (e.g. emoji)

Native

• KT-49348 KONAN_NO_64BIT_ATOMIC does not guard Kotlin_AtomicLong_addAndGet
• KT-42500 KLIB: K/N compiler cannot link with a library with incorrect symbol in the name or the path
• KT-49395 K/N: After 1.5.20, compiling code including KSuspendFunction3 to framework leads to "Assertion failed at parametersAssociated"
• KT-49967 Kotlin iOS regex issue
• KT-49873 Native does not sort Strings correctly
• KT-49347 androidNativeArm32 binaries crash when using atomic operations
• KT-49144 Kotlin/Native executable early segmentation fault
• KT-49463 --dry-run flag for llvm_builder/package.py
• KT-49597 Kotlin/Native: Exporting the Arrow library into the framework causes StackOverflowError in the Devirtualization phase
• KT-49790 "Undefined symbols" error when linking project with kotest 5.0.0.RC and Kotlin 1.6

Native. Build Infrastructure

• KT-48625 Native: distribution doesn't contain sources for kotlin.test

Native. C Export

• KT-47828 Kotlin/Native: Kotlin exception is not filtered out on interop border when producing a dynamic library with compiler caches enabled

Native. C and ObjC Import

• KT-35059 Better "could not build module" cinterop report
• KT-49768 Kotlin/Native: Add -Xoverride-konan-properties to cinterop.

Native. ObjC Export

• KT-47399 Kotlin Native - Objective-C with Swift 5.5 Async Function Needs Returning KotlinUnit
• KT-48282 Kotlin sealed class roots and abstract classes within sealed hierarchies have their constructors exposed to Objective-C/Swift
• KT-46866 Memory consumption / performance of Kotlin classes with String property in KMP project on iOS Swift

Native. Platform Libraries

• KT-50045 Kotlin/Native: Re-enable disabled Hypervisor framework
• KT-47331 Kotlin/Native: support Xcode 13 SDKs

Native. Runtime

• KT-50491 Kotlin/Native: Deadlock in the Ktor server tests with the new memory manager

Native. Runtime. Memory

• KT-49497 iOS Swift "runtime assert: Must be positive" and "runtime assert: cycle collector shall only work with single object containers"
• KT-50026 Kotlin/Native: Make AtomicReference behave like FreezableAtomicReference with the new MM
• KT-49013 Kotlin/Native: Correctly switch thread state to native for spin locks

Native. Testing

• KT-48561 Test sideEffectInTopLevelInitializerMultiModule fails with new MM

Reflection

• KT-50198 Reflection: NPE from kotlin.jvm.internal.Intrinsics.areEqual with Spock

Tools. Android Extensions

• KT-50627 NullPointerException when using kotlin-android-extensions synthetic after updating Kotlin to 1.6.10
• KT-50887 kotlin-android-extensions plugin breaks when package attribute missing from AndroidManifest.xml

Tools. CLI

• KT-46329 Deprecated -Xjvm-default values are not reported
• KT-48027 "Module ... cannot be found in the module graph" with module-info in META-INF/versions
• KT-48417 CLI: boolean -X arguments accept a value after '=' which is ignored
• KT-11164 Allow running class files with '.class' extension in 'kotlin' script
• KT-46171 NoClassDefFoundError produced when running kotlin script

Tools. Commonizer

• KT-48856 MPP: Unable to resolve c-interop dependency for test compilation in an intermediate source set with the only platform
• KT-46257 MPP: Stdlib included more than once for an enabled hierarchical commonization
• KT-48288 [Commonizer] platform.posix.timespec.tv_sec not commonized in OKIO
• KT-47574 [Commonizer] TypeAliasTypeCommonization: Properly substitute underlying type arguments
• KT-48221 MPP: Too few targets specified if platform test source set depends on main
• KT-47100 [Commonizer] Commonize underlying type-alias types

Tools. Compiler Plugins

• KT-50718 Unable to serialize an object with a generic field
• KT-50764 Kotlin 1.6.10 custom serializers for a generic type receive the unit serializer on jvm
• KT-46444 JVM IR, serialization: "AssertionError: No such value argument slot in IrConstructorCallImpl: 0" with KSerializer of ClosedRange<Float>

Tools. Gradle

New Features

• KT-41689 Support statistics for Configuration Cache
• KT-49299 Add more flexible way for defining Kotlin compiler execution strategy
• KT-21056 Kotlin Gradle Plugin tasks execution should be parallelized by default

Performance Improvements

• KT-50664 Compile speed regression going from Kotlin 1.5.31 to 1.6.10 for incremental changes when Java class in a dependent child module w/ kapt is modified w/o a method/class signature change
• KT-48884 Configuration performance regression in Kotlin Gradle plugin 1.5.30
• KT-49782 Improve compilation task outputs snapshot performance

Fixes

• KT-48134 Debug log level causes build cache miss
• KT-49014 Disable Explicit API is not possible
• KT-48408 Build may fail with strict JVM target validation mode when project has no Kotlin sources
• KT-50620 Gradle Kotlin Plugin crashes in CI due to hostname resolving issue
• KT-49921 Setup basic release performance regression tests
• KT-50369 Deprecate kotlin.experimental.coroutines Gradle DSL option and kotlin.coroutines property
• KT-48046 Gradle Throws Exception From Kotlin Plugin: destinationDir must not be null
• KT-50037 Kotlin compile task registers more than one task action and their order of execution is counter-intuitive
• KT-49772 Kotlin in-process compilation does not release file handles
• KT-47215 KJS: "UninitializedPropertyAccessException: lateinit property fileHasher has not been initialized" when running kotlinNpmInstall or rootPackageJson locally
• KT-46406 Remove 'kotlin.parallel.tasks.in.project' build property

Tools. Gradle. JS

• KT-49253 KJS / Gradle: Error while evaluating property 'filteredArgumentsMap' of task ':compileProductionExecutableKotlinJs'
• KT-49037 KJS / Gradle: Configuration cache usage on large projects lead to high memory consumption by Gradle daemon
• KT-49902 Kotlin/JS: Gradle: with --debug it still runs yarn without --ignore-scripts
• KT-49808 KJS / Gradle: NPE when running node.js Mocha tests with configuration cache reuse
• KT-49530 KJS: Update Node.JS and Yarn
• KT-49445 KJS / IR: "AssertionError: Built-in class kotlin.Unit is not found" 1.5.31 fails on consuming artifacts built with 1.6.0

Tools. Gradle. Multiplatform

• KT-49089 An annotation class annotated with @OptionalExpectation can not be used in another module with HMPP enabled
• KT-48818 False positive warning about used enableDependencyPropagation flag with enabled hierarchical mpp by default
• KT-49596 Composite Metadata Jar: Read location of cinterops from KotlinProjectStructureMetadata file
• KT-41823 Default arguments not work in iosMain metadata with enableGranularSourceSetsMetadata
• KT-50574 Only enable cinterop metadata transformation when 'kotlin.mpp.enableCInteropCommonization' is set

Tools. Gradle. Native

New Features

• KT-47633 Accept version when configuring cocoapods for kotlin/native
• KT-42630 CocoaPods Gradle plugin: Allow customization of podspec properties
• KT-48553 Kotlin/Native: use Gradle Shared Build Service to read konan.properties
• KT-47529 Read list of opt-in cacheable native targets from konan.properties

Fixes

• KT-49484 Kotlin/Native: XCFramework should include dSYM files for release artifacts
• KT-47768 Gradle MPP plugin: K/N targets break task configuration avoidance for assemble task
• KT-49971 Make 'embedAndSignAppleFrameworkForXcode' task visible for users
• KT-43815 [CocoaPods Plugin] Pod name cannot be changed
• KT-42105 Multiplatform Cocoapod kotlin plugin doesn't support repo distribution
• KT-48808 XCFramework task fails when using static debug frameworks
• KT-42755 Cocoapods plugin using backslashes on Windows

Tools. JPS

• KT-49177 JPS: Kotlin compiler doesn't recompile file that references Java constant in class body
• KT-46506 JPS: Kotlin compiler doesn't recompile file that references Java constant
• KT-47909 UtilsKt.recordPackageLookup is slow
• KT-47857 Class loaders clash when building kotlin project with FIR with JPS without daemon

Tools. Kapt

• KT-32596 kapt replaces class generated by annotation processor with error.NonExistentClass when the class is used as an annotation
• KT-48617 Cache miss due to empty directories in KaptGenerateStubsTask inputs
• KT-48826 Deprecate 'kapt.use.worker.api' property
• KT-47002 Kapt: warning mentions non-effective property kapt.includeCompileClasspath

Tools. Maven

• KT-50306 Configured plugin dependencies should be available in kotlin-maven-plugin scripts

Tools. Parcelize

• KT-19853 Parcelize: CREATOR field should be available from code

Tools. REPL

• KT-20488 REPL: java.lang.InternalError: "Enclosing constructor not found" for class reference on an anonymous object literal

Tools. Scripts

• KT-40497 “Cannot inline bytecode built with JVM target 1.8 into bytecode that is being built with JVM target 1.6.” for running script without specified jvm-target
• KT-49329 Kotlin scripts are compiled with jvmTarget 1.8 by default and in many scenarios there is no way to redefine it, which lead to inlining errors e.g. with JDK 17

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