Kotlin 1.7.0-RC

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

File	Sha256
kotlin-compiler-1.7.0-RC.zip	d972048a5f36902a4a6fdaaa177c49369a0e7041795a5c7930d22677c274fa76
kotlin-native-linux-x86_64-1.7.0-RC.tar.gz	070810e586d7211aedcc0194b9cdd9260e07d794caec6c6d37ba6ce91706908e
kotlin-native-macos-x86_64-1.7.0-RC.tar.gz	ac62923ed577c5c7f777490f486b8b03979c41cb0964b05883e878d56d0cc6c6
kotlin-native-macos-aarch64-1.7.0-RC.tar.gz	caba10128994de0da58c670429960b5882d1d13756ef2e6254a6886bd5b6a0c7
kotlin-native-windows-x86_64-1.7.0-RC.zip	3d23ffe9b9d5d61e7592e003e7a16de97e4e4fcf37ffb06280db2d9f8522ef58

Kotlin 1.7.0-Beta

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$__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](https://youtrack.j...

Kotlin 1.6.21

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

File	Sha256
kotlin-compiler-1.6.21.zip	632166fed89f3f430482f5aa07f2e20b923b72ef688c8f5a7df3aa1502c6d8ba
kotlin-native-linux-x86_64-1.6.21.tar.gz	14e7b9bee2e9ef7bff9a69881fef44d287bbb3adaa05396e0c03e77dfc9b0d3d
kotlin-native-macos-x86_64-1.6.21.tar.gz	61dfee00b11f3c27e349854b9a9d530ed86a882e6c8a81f77f16acecf9660eeb
kotlin-native-macos-aarch64-1.6.21.tar.gz	c2734c651e680b85805c17488f31125220d96eca8e3ba89b5b58f07c61ff5239
kotlin-native-windows-x86_64-1.6.21.zip	db8560138580038c23e88a7ceb6eb4e8a3ec7d7fd66218e82096d52402f280a8

Kotlin 1.6.20

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.IndexOutOfBound...

Kotlin 1.6.20-RC2

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

File	Sha256
kotlin-compiler-1.6.20-RC2.zip	038da980d17432a44c41299b528b81040ca2578b634b0fd066661b45871711f2
kotlin-native-linux-x86_64-1.6.20-RC2.tar.gz	0b6007c30a92adc534cbcd6253ee061c098edad0f39b7dd2e4a6b26ddfa900a4
kotlin-native-macos-x86_64-1.6.20-RC2.tar.gz	5dc256210c6cc5a04d58ca0b2b607e4354fe1cec5c05ea1fc2f9e8fd44e34280
kotlin-native-macos-aarch64-1.6.20-RC2.tar.gz	8252ef6392f13a0927e9c0cd96e99eed890680c5f5342e8d7bdc0a833ea4c21b
kotlin-native-windows-x86_64-1.6.20-RC2.zip	80a2286e3e1b9e3191addb386ee98483de32422b5302a2180e52e2d1df6b365d

Kotlin 1.6.20-RC

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

File	Sha256
kotlin-compiler-1.6.20-RC.zip	2f78ced6b983db49ea1cbcbe41c18bff19ced596861f6bd8af01311d71b6d81d
kotlin-native-linux-x86_64-1.6.20-RC.tar.gz	2f3de8ad114405af02c0dea2047dadbbb592421db199107de699815b137d48d0
kotlin-native-macos-x86_64-1.6.20-RC.tar.gz	f8aba4e2fc5d689ae161eda698d47fbc758df19f8047dfc00ea308783505e15e
kotlin-native-macos-aarch64-1.6.20-RC.tar.gz	11bfebb4bde4844b3fe3eff58590d8518d25a51c6bfeb058d22eb7e4d93d0075
kotlin-native-windows-x86_64-1.6.20-RC.zip	6225b14fe8e0e47a6e5880ce19d7a794cc7764e66ef6d73c3fb8170cbeac2e10

Kotlin 1.6.20-M1

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](https://youtrack.jetbrains.c...

Kotlin 1.6.10

Changelog

Android

• KT-49798 [MPP] [Android] AGP 7.1.0+ android target publications leak 'AgpVersionAttr' attribute

Compiler

Performance Improvements

• KT-49821 Optimize LazyClassMemberScope#getContributedDescriptors: use nameFilter

Fixes

• KT-49833 java.lang.NullPointerException caused by accidental newline in package directive
• KT-49838 Type inference fails on 1.6.0: Cannot use 'CapturedType(*)' as reified type parameter
• KT-49752 Regression in method return type inference: "IllegalStateException: Expected some types"
• KT-49876 Kotlin/Native: cross-compilation of Linux static library is broken in Windows in 1.6.0
• KT-49792 Atomicfu: "standalone invocation of kotlinx.atomicfu.AtomicInt::compareAndSet that was not traced to previous field load" with suspend function
• KT-49834 Coroutine method transformer generates invalid locals table.
• KT-49441 Support friend modules in Kotlin Native
• KT-49248 K/N: Symbol with IrSimpleFunctionSymbolImpl is unbound after 1.5.30
• KT-49651 Inconsistent compiler APIs for repeatable annotations
• KT-49168 JVM IR: IndexOutOfBoundsException with fun interface + suspend function as SAM method
• KT-49573 No annotated types, compiler emits "Annotated types are not supported in typeOf"
• KT-47192 Build Fake Overrides for internal members of classes from friend module
• KT-48673 IR: IllegalStateException for usage of internal member declared in a superclass in another module

JavaScript

• KT-47811 KJS / IR: "ClassCastException" when using suspend function in console.log

Language Design

• KT-49868 Support language version 1.3 in Kotlin 1.6.10

Libraries

• KT-50173 Different behavior of Regex escapeReplacement function in JVM and JS

Tools. Android Extensions

• KT-49799 NullPointerException when using kotlin-android-extensions synthetic after update to Kotlin 1.6.0

Tools. Compiler Plugins

• KT-50005 jvm-abi-gen plugin: do not change the declaration order in generated jars
• KT-49726 JVM/IR: "IllegalArgumentException: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER": Serialization with sealed class as type parameter

Tools. Gradle

• KT-49835 Android consumers can't resolve Android debug variants of published MPP libraries published with Kotlin 1.6.0 & Gradle 7.0+
• KT-49910 Incremental compilation speed regression in 1.6.0 for Android projects

Tools. Gradle. JS

• KT-49109 KJS / Gradle: Configuration failed: Could not find node-14.17.0-darwin-arm64.tar.gz (org.nodejs:node:14.17.0)
• KT-50135 KJS: Problem with Yarn install with scripts on Windows
• KT-34014 Gradle, JS: Ability to persist / reuse yarn.lock
• KT-49505 KJS / IR: Installation of NPM dependencies should be with ignore-scripts

Tools. Gradle. Native

• KT-49931 Kotlin Multiplatform Fails in Windows after 1.6.0 upgrade - Cannot run program "pod"
• KT-49771 podInstall task is not executed after adding a pod dependency to the shared module

Tools. Incremental Compile

• KT-49822 Incremental compilation state is modified when the build fails in Kotlin 1.6
• KT-49340 "IllegalStateException: @NotNull method org/jetbrains/kotlin/com/intellij/openapi/application/AsyncExecutionService.getService must not return null" with Anvil plugin and incremental compilation

Checksums

File	Sha256
kotlin-compiler-1.6.10.zip	432267996d0d6b4b17ca8de0f878e44d4a099b7e9f1587a98edc4d27e76c215a
kotlin-native-linux-x86_64-1.6.10.tar.gz	9b42bd16b6accf009ea4cc8dc786dece079af55b6a637fecc1e8c1f4c0614d08
kotlin-native-macos-x86_64-1.6.10.tar.gz	607729bbd963d35e7df85647a8d01f25ae3112b1537edaababebc399cb8d4806
kotlin-native-macos-aarch64-1.6.10.tar.gz	b4fc9e179540b4dc7de7b3a5a3548dad62b1247acc3e143305d13c4194cbca25
kotlin-native-windows-x86_64-1.6.10.zip	78b746551f58022727add4c609d7f42802b3ffc3d8163517b708a8c3355d33c1

Kotlin 1.6.10-RC

Learn how to install Kotlin 1.6.10-RC plugin and how to configure build with 1.6.10-RC

Changelog

Android

• KT-49798 [MPP] [Android] AGP 7.1.0+ android target publications leak 'AgpVersionAttr' attribute

Compiler

Performance Improvements

• KT-49821 Optimize LazyClassMemberScope#getContributedDescriptors: use nameFilter

Fixes

• KT-49838 Type inference fails on 1.6.0: Cannot use 'CapturedType(*)' as reified type parameter
• KT-49752 Regression in method return type inference: "IllegalStateException: Expected some types"
• KT-49876 Kotlin/Native: cross-compilation of Linux static library is broken in Windows in 1.6.0
• KT-49833 java.lang.NullPointerException caused by accidental newline in package directive
• KT-49792 Atomicfu: "standalone invocation of kotlinx.atomicfu.AtomicInt::compareAndSet that was not traced to previous field load" with suspend function
• KT-49834 Coroutine method transformer generates invalid locals table.
• KT-49441 Support friend modules in Kotlin Native
• KT-49248 K/N: Symbol with IrSimpleFunctionSymbolImpl is unbound after 1.5.30
• KT-49651 Inconsistent compiler APIs for repeatable annotations
• KT-49168 JVM IR: IndexOutOfBoundsException with fun interface + suspend function as SAM method
• KT-49573 No annotated types, compiler emits "Annotated types are not supported in typeOf"
• KT-47192 Build Fake Overrides for internal members of classes from friend module
• KT-48673 IR: IllegalStateException for usage of internal member declared in a superclass in another module

JavaScript

• KT-47811 KJS / IR: "ClassCastException" when using suspend function in console.log

Tools. Android Extensions

• KT-49799 NullPointerException when using kotlin-android-extensions synthetic after update to Kotlin 1.6.0

Tools. Compiler Plugins

• KT-50005 jvm-abi-gen plugin: do not change the declaration order in generated jars
• KT-49726 JVM/IR: "IllegalArgumentException: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER": Serialization with sealed class as type parameter

Tools. Gradle

• KT-49835 Android consumers can't resolve Android debug variants of published MPP libraries published with Kotlin 1.6.0 & Gradle 7.0+
• KT-49910 Incremental compilation speed regression in 1.6.0 for Android projects

Tools. Gradle. JS

• KT-34014 Gradle, JS: Ability to persist / reuse yarn.lock
• KT-49505 KJS / IR: Installation of NPM dependencies should be with ignore-scripts

Tools. Gradle. Native

• KT-49931 Kotlin Multiplatform Fails in Windows after 1.6.0 upgrade - Cannot run program "pod"
• KT-49771 podInstall task is not executed after adding a pod dependency to the shared module

Tools. Incremental Compile

• KT-49822 Incremental compilation state is modified when the build fails in Kotlin 1.6
• KT-49340 "IllegalStateException: @NotNull method org/jetbrains/kotlin/com/intellij/openapi/application/AsyncExecutionService.getService must not return null" with Anvil plugin and incremental compilation

Checksums

File	Sha256
kotlin-compiler-1.6.10-RC.zip	e0fe4778f2494b8584039a3ff4268fdc74205841aed2d4036361f63dd540c287
kotlin-native-linux-x86_64-1.6.10-RC.tar.gz	88c4e51b5ed0d68c208394fccf61e14560121ed1be944a89b9ff7d8f7d4e7218
kotlin-native-macos-x86_64-1.6.10-RC.tar.gz	66b87d7e0d72b27d1da8a078fe5a5289f75f3312d8233b2b58719d04ebeb4c35
kotlin-native-macos-aarch64-1.6.10-RC.tar.gz	28cd94bd255c0fe3b639091a3bc66753c08c5136c3ebeb0a8a9cf8711240698a
kotlin-native-windows-x86_64-1.6.10-RC.zip	45f3f430588210b6ef906c7ebfdcf82a9b8d6bb367fb53aa35dde73a51cb2e3e

Kotlin 1.5.32

Changelog

Tools. Gradle. Multiplatform

• KT-49798 [MPP] [Android] AGP 7.1.0+ android target publications leak 'AgpVersionAttr' attribute

Checksums

File	Sha256
kotlin-compiler-1.5.32.zip	2e728c43ee0bf819eae06630a4cbbc28ba2ed5b19a55ee0af96d2c0ab6b6c2a5
kotlin-native-linux-x86_64-1.5.32.tar.gz	3b1441171951f80272d227da8673dcceff48343a3effba36ee49e5be5f55a1a3
kotlin-native-macos-x86_64-1.5.32.tar.gz	3060512bceb7e3b0bdfe9f5af7d526192b745be1c42a317b6a455b06393513df
kotlin-native-macos-aarch64-1.5.32.tar.gz	b41322c2e7d88379d65554b70edc34eb05f49c9d72d528c16b64a60a9c2250b8
kotlin-native-windows-x86_64-1.5.32.zip	6d6a2dbaa65d3b5f07bb6b48cbd6fa92f616d2c8edd0afb4f19f1cc35566476a