Changelog

Analysis API

• KT-50255 Analysis API: Implement standalone mode for the Analysis API

Analysis API. FIR

• KT-54292 Symbol Light classes: implement PsiVariable.computeConstantValue for light field
• KT-54293 Analysis API: fix constructor symbol creation when its accessed via type alias

Android

• KT-53342 TCS: New AndroidSourceSet layout for multiplatform
• KT-53013 Increase AGP compile version in KGP to 4.1.3
• KT-54013 Report error when using deprecated Kotlin Android Extensions compiler plugin
• KT-53709 MPP, Android SSL2: Conflicting warnings for androidTest/kotlin source set folder

Backend. Native. Debug

• KT-53561 Invalid LLVM module: "inlinable function call in a function with debug info must have a !dbg location"

Compiler

New Features

• KT-52817 Add @JvmSerializableLambda annotation to keep old behavior of non-invokedynamic lambdas
• KT-54460 Implementation of non-local break and continue
• KT-53916 Support Xcode 14 and new Objective-C frameworks in Kotlin/Native compiler
• KT-32208 Generate method annotations into bytecode for suspend lambdas (on invokeSuspend)
• KT-53438 Introduce a way to get SourceDebugExtension attribute value via JVMTI for profiler and coverage

Performance Improvements

• KT-53347 Get rid of excess allocations in parser
• KT-53689 JVM: Optimize equality on class literals
• KT-53119 Improve String Concatenation Lowering

Fixes

• KT-53465 Unnecessary checkcast to array of reified type is not optimized since Kotlin 1.6.20
• KT-49658 NI: False negative TYPE_MISMATCH on nullable type with when
• KT-48162 NON_VARARG_SPREAD isn't reported on *toTypedArray() call
• KT-43493 NI: False negative: no compilation error "Operator '==' cannot be applied to 'Long' and 'Int'" is reported in builder inference lambdas
• KT-54393 Change in behavior from 1.7.10 to 1.7.20 for java field override.
• KT-55357 IllegalStateException when reading a class that delegates to a Java class with a definitely-not-null type with a flexible upper bound
• KT-55068 Kotlin Gradle DSL: No mapping for symbol: VALUE_PARAMETER SCRIPT_IMPLICIT_RECEIVER on JVM IR backend
• KT-51284 SAM conversion doesn't work if method has context receivers
• KT-48532 Remove old JVM backend
• KT-55065 Kotlin Gradle DSL: Reflection cannot find class data for lambda, produced by JVM IR backend
• KT-53270 K1: implement synthetic Enum.entries property
• KT-52823 Cannot access class Thread.State after upgrading to 1.7 from 1.6.1 using -Xjdk-release=1.8
• KT-55108 IR interpreter: Error occurred while optimizing an expression: VARARG
• KT-53547 Missing fun IrBuilderWithScope.irFunctionReference
• KT-54884 "StackOverflowError: null" caused by Enum constant name in constructor of the same Enum constant
• KT-47475 "IncompatibleClassChangeError: disagree on InnerClasses attribute": cross-module inlined WhenMappings has mismatched InnerClasses
• KT-55013 State checker use-after-free with XCode 14.1
• KT-54802 "VerifyError: Bad type on operand stack" for inline functions on arrays
• KT-54707 "VerifyError: Bad type on operand stack" in inline call chain on a nullable array value
• KT-48678 Coroutine debugger: disable "was optimised out" compiler feature
• KT-54745 Restore KtToken constructors without tokenId parameter to preserve back compatibility
• KT-54650 Binary incompatible ABI change in Kotlin 1.7.20
• KT-52786 Frontend / K2: IndexOutOfBoundsException when opting in to K2
• KT-54004 Builder type inference does not work correctly with variable assignment and breaks run-time
• KT-54581 JVM: "VerifyError: Bad type on operand stack" with generic inline function and when inside try-catch block
• KT-53794 IAE "Unknown visibility: protected/protected and package/" on callable reference to protected member of Java superclass
• KT-54600 NPE on passing nullable Kotlin lambda as Java's generic SAM interface with super type bound
• KT-54463 Delegating to a field with a platform type causes java.lang.NoSuchFieldError: value$delegate
• KT-54509 Ir Interpreter: unable to evaluate string concatenation with "this" as argument
• KT-54615 JVM: Internal error in file lowering: java.lang.AssertionError: Error occurred while optimizing an expression
• KT-53146 JVM IR: unnecessary checkcast of null leads to NoClassDefFoundError if the type isn't available at runtime
• KT-53712 Add mode to prevent generating JVM 1.8+ annotation targets (TYPE_USE, TYPE_PARAMETER)
• KT-54366 K2: no JVM BE specific diagnostics (in particular CONFLICTING_JVM_DECLARATIONS) in 1.8
• KT-35187 NullPointerException on compiling suspend inline fun with typealias to suspend function type
• KT-54275 K2: "IllegalArgumentException: KtParameter is not a subtype of class KtAnnotationEntry for factory REPEATED_ANNOTATION"
• KT-53656 "IllegalStateException: typeParameters == null for SimpleFunctionDescriptorImpl" with recursive generic type parameters
• KT-46727 Report warning on contravariant usages of star projected argument from Java
• KT-53197 K2: 'init' hides member of supertype 'UIComponent' and needs 'override' modifier
• KT-53867 K2: @JvmRecord does not compile to a java record
• KT-53964 K2 is unable to work with Java records
• KT-53349 K2: TYPE_MISMATCH caused by non-local return
• KT-54100 "Type variable TypeVariable(P) should not be fixed" crash in code with errors
• KT-54212 K2: cannot calculate implicit property type
• KT-53699 K2: Exception during IR lowering in code with coroutines
• KT-54192 Warn about unsupported feature on generic inline class parameters
• KT-53723 Friend modules aren't getting passed to cache build during box tests
• KT-53873 K2: Duplicated diagnostics reported from user type ref checkers
• KT-50909 "VerifyError: Bad type on operand stack" caused by smartcasting for nullable inline class property in class
• KT-54115 Restore Psi2IrTranslator constructor from 1.7.20
• KT-53908 K2: Self-referencing generics in Java class causes New Inference Error (IE: class Foo<T extends Foo<T>>)
• KT-53193 K2: compile error on project that compiles fine with normal 1.7.10
• KT-54062 K2 Invalid serialization for type-aliased suspend function type with extension receiver
• KT-53953 Forbid usages of super or super<Some> if in fact it accesses an abstract member
• KT-47473 NI: Missed UPPER_BOUND_VIOLATED diagnostics if use type aliases with type parameters
• KT-54049 K2: false positive MANY_IMPL_MEMBER_NOT_IMPLEMENTED
• KT-30054 Wrong approximation if nullable anonymous object with implemented interface is used
• KT-53751 Postpone IgnoreNullabilityForErasedValueParameters feature
• KT-53324 Implement Enum.entries lowering on K/N
• KT-44441 K2: report redeclaration error if there is a Java class with the same name as the Kotlin class
• KT-53807 No warning about declaringClass on an enum value
• KT-53493 K2: val on function parameter counts as just warning
• KT-53435 K2: "IllegalArgumentException: class KtValueArgument is not a subtype of class KtExpression for factory ANNOTATION_ARGUMENT_MUST_BE_CONST" if string in nested annotation is concatenated
• KT-52927 AssertionError: LambdaKotlinCallArgumentImpl
• KT-53922 Make Enum.entries unstable feature to poison binaries
• KT-53783 Exception during psi2ir when declaring expect data object
• KT-53622 [OVERLOAD_RESOLUTION_AMBIGUITY] when enum entry called 'entries' is present in K2
• KT-41670 JVM IR: AbstractMethodError when using inheritance for fun interfaces
• KT-53178 K2: implement diagnostics for serialization plugin
• KT-53804 Restore old and incorrect logic of generating InnerClasses attributes for kotlin-stdlib
• KT-52970 Default value constant in companion object works on JVM and JS, but fails on native
• KT-51114 FIR: Support DNN checks
• KT-27936 Write InnerClasses attribute for all class names used in a class file
• KT-53719 Parsing regression on function call with type arguments and labeled lambda
• KT-53261 Evaluate effect from <T-unbox> inline for primitive types
• KT-53706 K2: Context receivers are not resolved on properties during type resolution stage
• KT-39492 Kotlin.Metadata's packageName field cannot be an empty string
• KT-53664 Ir Interpreter: unable to evaluate name of function reference marked with JvmStatic from another module
• KT-52478 [Native] Partial linkage: Building native binary from cached KLIBs fails if one library depends on removed nested callable member from another one
• KT-48822 CompilationException: Back-end (JVM) Internal error: Failed to generate expression: KtProperty - ConcurrentModificationException
• KT-50281 IllegalStateException: unsupported call of reified inlined function
• KT-50083 Different error messages in android and JVM (Intrinsics.checkNotNullParameter).
• KT-53236 Support Enum.entries codegen on JVM/IR BE
• KT-41017 FIR: should we support smartcast after null check
• KT-53202 "ISE: Descriptor can be left only if it is last" after direct invoke optimization on a capturing lambda
• KT-46969 @BuilderInference with nested DSL scopes cause false-positive scope violation in Kotlin 1.5
• KT-53257 FIR: Improper context receiver argument is chosen when there are two extension receiver candidates
• KT-53090 Anonymous function and extension function literals are generated as classes even with -Xlambdas=indy
• KT-53208 K2: Cannot get annotation for default interface method parameter when compiled with -Xuse-k2
• KT-53184 K2: NoSuchMethodError on KProperty1.get() referenced via nullable typealias
• KT-53198 K2: Return type mismatch: expected kotlin/Unit, actual kotlin/Unit?
• KT-53100 Optimization needed: <T-unbox>(CONSTANT_PRIMITIVE(x: T?)) => x
• KT-49875 [FIR] Support infering PRIVATE_TO_THIS visibility
• KT-53024 Refactor FIR renderer to composable architecture
• KT-50995 [FIR] Support SAM with receiver plugin
• KT-53148 K1: introduce warning for inline virtual member in enum
• KT-49847 Devirtualization fails to eliminate boxing in function reference context
• KT-52875 Extension function literal creation with -Xlambdas=indy fails with incorrect arguments
• KT-53072 INVALID_IF_AS_EXPRESSION error isn't shown in the IDE (LV 1.8)
• KT-52985 Native: a function with type T? returned a kotlin.Unit instead of null
• KT-52020 FIR warning message includes internal rendering
• KT-48778 -Xtype-enhancement-improvements-strict-mode not respecting @NonNull annotation for property accesses?

IDE

Fixes

• KTIJ-22357 CCE “class org.jetbrains.kotlin.fir.types.impl.FirImplicitTypeRefImpl cannot be cast to class org.jetbrains.kotlin.fir.types.FirResolvedTypeRef” in K2
• KT-55150 Argument for @NotNull parameter 'scope' of org/jetbrains/kotlin/resolve/AnnotationResolverImpl.resolveAnnotationType must not be null
• KTIJ-22165 IDE notification to promote users to migrate to the new Kotlin/JS toolchain
• KTIJ-22166 IDE notification (or something else) about JPS and Maven support for Kotlin/JS is deprecated
• KT-53543 Rework light classes for file facade
• KT-48773 Investigate the possibility of removing dependency on old JVM backend in light classes
• KTIJ-19699 IDE: False positive type mismatch in Java code for Kotlin nested class non-direct inheritor from external library
• KT-51101 FIR IDE: Exception on "Show Type Info" action
• KTIJ-22295 MPP, IDE: False positive UPPER_BOUND_VIOLATED when JVM module implements the generic interface from MPP module and the type parameter is not equal to itself.
• KT-51656 FIR IDE: ProgressCancelled exception is masked in the compiler during resolve
• KT-51315 FIR IDE: move out base modules from fe10 plugin to reuse in k2 plugin
• KTIJ-22323 K2: ISE during resolve of stdlib calls from the stdlib
• KTIJ-21391 Generate -> Override methods : don't delegate to abstract methods
• KT-53097 Extract common part of light classes to another module
• KTIJ-22354 FIR LC: annotation owner is always null
• KTIJ-22157 Kotlin call resolver leaks user code when reporting exception

IDE. Completion

• KTIJ-22552 Kotlin: 'for loop' postfix completion doesn't work - "Fe10SuggestVariableNameMacro must be not requested from main classloader"
• KTIJ-22503 Support code completion for data objects

IDE. Debugger

• KT-51755 Compilation exception with scripting compilation during debug session
• KTIJ-21963 Debugger / IR: Expression evaluation of the debugger doesn't work

IDE. Decompiler, Indexing, Stubs

• KTIJ-22750 Initialize Kotlin stub element types lazily
• KTIJ-18094 IDE: "AssertionError: Stub count doesn't match stubbed node length" with minified Android AAR library
• KTIJ-17632 IndexOutOfBoundsException: Cannot decompile a class located in minified AAR

IDE. Gradle Integration

• KT-48135 In the IDE import, reuse dependency granular source set KLIBs across multi-project build to avoid duplicate external libraries
• KTIJ-22345 False positive unresolved reference for members of subclasses of expect classes.
• KT-53514 HMPP: False positive for None of the following functions can be called with the arguments supplied. with Enum in common module
• KT-51583 Gradle 7.4+ | SamplesVariantRule interference: Could not resolve all files for configuration ':kotlinKlibCommonizerClasspath'
• KTIJ-21077 Dependency matrix does not work with Jetpack compose / multiplatform projects

IDE. Inspections and Intentions

• KTIJ-19531 Adapt changes about new rules for method implementation requirements
• KTIJ-22087 Support IDE inspections for upcoming data objects
• KTIJ-20510 Quick fix to implement and call correct super method in case of inheritance with defaults
• KTIJ-20170 Provide quickfix for deprecated resolution to private constructor of sealed class
• KTIJ-22630 FIR IDE: Lazy resolve exception after invocation of Override members action on value class
• KT-49643 Intentions: "Implement members" fails when base type function declaration uses unresolved generic types

IDE. JS

• KTIJ-22167 Make JS IR default in projects created by wizard
• KTIJ-22332 Wizard: Kotlin/JS projects: cssSupport DSL should be updated

IDE. KDoc

• KTIJ-22324 K2 IDE: implement reference resolve inside KDocs

IDE. Multiplatform

• KTIJ-19566 New Project Wizard: Update HMPP-related flags in multiplatform wizards

IDE. Navigation

• KT-51314 FIR IDE: show Kotlin declarations in search symbol
• KTIJ-22755 Find usage for constructor from kotlin library doesn't work for secondary constructor usages

IDE. Script

• KTIJ-22598 Add warning for standalone scripts in source roots
• KT-54325 .settings.gradle.kts and .init.gradle.kts are reported as standalone scripts

IDE. Structural Search

• KTIJ-21986 KSSR: "CodeFragment with non-kotlin context should have fakeContextForJavaFile set: originalContext = null" warning shows up when replacing

IDE. Tests Support

• KT-50269 FIR IDE: Allow running tests via gutter

IDE. Wizards

• KTIJ-23537 Wizard: projects with Android modules require higher sdkCompileVersion
• KTIJ-23525 Wizard: Compose multiplatform: project won't build and require higher compileSdkVersion
• KTIJ-22763 New Project Wizard: remove deprecated Android extensions plugin from Android target in the project constructor
• KTIJ-22481 Wizard: Kotlin -> Browser application (gradle groove). Build error

JavaScript

Fixes

• KT-55097 KJS / IR + IC: Using an internal function from a friend module throws an unbound symbol exception
• KT-54406 Kotlin/JS: build with dependencies fails with "Could not find "kotlin" in [~/.local/share/kotlin/daemon]"
• KT-53074 Make JS IR BE default in toolchain (gradle & CLI)
• KT-50589 UTF-8 Instability in kotlin.js.map
• KT-54934 KJS / IR + IC: Suspend abstract function stubs are generated with unstable lowered ic signatures
• KT-54895 KJS / IR + IC: broken cross module references for function default param wrappers
• KT-54520 KJS / IR Allow IdSignature clashes
• KT-54120 JS IR + IC: pointless invalidation of dependent code after modifying companions
• KT-53986 KJS / IR + IC: compiler produces different JS file names with IC and without IC
• KT-54010 JS IR + IC: Force IC cache invalidation after updating language version or features
• KT-53931 KJS / Gradle: Regression with 1.7.20-RC: ReferenceError: println is not defined
• KT-53968 Kotlin/JS: no UninitializedPropertyAccessException on access to non-initialized lateinit property defined in dependencies
• KT-54686 KJS / IR: Incorrect generation of signatures when one of argument is nested class
• KT-54479 KJS / IR + IC: Adding or removing companion fields leads java.lang.IllegalStateException in the compiler IC infrastructure
• KT-54382 KJS / IR: Wrong type check for inheritors of suspend functions
• KT-54323 KJS / IR + IC: Intrinsics from stdlib may lose their dependencies in incremental rebuild
• KT-53361 KJS / IR: No debug info is generated for in-line js code
• KT-53321 Implement Enum.entries lowering on JS/IR
• KT-53112 KJS IR turn on IC infra by default
• KT-50503 Kotlin/JS: IR + IC: compileTestDevelopmentExecutableKotlinJs fails with ISE: "Could not find library" after removing module dependency
• KT-54011 JS IR + IC: EnumEntries don't work well when IC is enabled
• KT-53672 KJS / IR: "IndexOutOfBoundsException: Index 0 out of bounds for length 0" caused by function reference to extension function of reified type variable
• KT-43455 KJS: IR. Incremental compilation problem with unbound symbols
• KT-53539 KJS: Exported class inherited non-exported class shows warning
• KT-53443 KJS/IR: NullPointerException caused by anonymous objects inside lambdas
• KT-52795 K/JS and K/Native IR-validation/compilation errors for a valid kotlin code
• KT-52805 KJS/IR: Invalid call of inline function in also block
• KT-51151 KJS / IR: Wrong overloaded generic method with receiver is called
• KT-52830 KJS/IR: Sourcemap disabling doesn't work
• KT-52968 KJS / IR: Buggy generation of overridden methods
• KT-53063 KJS / IR + IC: undefined cross module reference for implemented interface functions
• KT-51099 KJS / IR + IC: Cache invalidation doesn't check generic class variance annotations (in, out)
• KT-51090 KJS / IR + IC: Cache invalidation doesn't check suspend qualifier
• KT-51088 KJS / IR + IC: Cache invalidation doesn't check class qualifiers (data, inline)
• KT-51083 KJS / IR + IC: Cache invalidation doesn't check inline function which was non inline initially
• KT-51896 KJS / IR + IC: Cache invalidation doesn't trigger rebuild for fake overridden inline functions

Language Design

• KT-48385 Deprecate confusing grammar in when-with-subject
• KT-48516 Forbid @Synchronized annotation on suspend functions
• KT-41886 Ability to require opt-in for interface implementation, but not for usage
• KT-34943 OVERLOAD_RESOLUTION_AMBIGUITY inconsistent with the equivalent Java code
• KT-51334 Implement type-bound label this@Type

Libraries

New Features

• KT-21007 Provide Kotlin OSGI Bundle with extensions for JRE8 (and JRE7)
• KT-54082 Comparable and subtractible TimeMarks
• KT-52928 Provide copyToRecursively and deleteRecursively extension functions for java.nio.file.Path
• KT-49425 Update OptIn documentation to reflect latest design changes
• KT-54005 Allow calling declaringJavaClass on Enum<E>
• KT-52933 rangeUntil members in built-in types

Performance Improvements

• KT-53508 Cache typeOf-related KType instances when kotlin-reflect is used

Fixes

• KT-51907 Switch JVM target of the standard libraries to 1.8
• KT-54835 Document that Iterable.all(emptyCollection) returns TRUE.
• KT-54168 Expand on natural order in comparator docs
• KT-53277 Stabilize experimental API for 1.8
• KT-53864 Review deprecations in stdlib for 1.8
• KT-47707 Remove the system property and the brittle contains optimization code itself
• KT-52336 Different behavior on JVM and Native in stringBuilder.append(charArray, 0, 1)
• KT-53927 Remove deprecation from ConcurrentModificationException constructors
• KT-53152 Introduce EnumEntries<E> to stdlib as backing implementation of Enum.entries
• KT-53134 stdlib > object Charsets > not thread safe lazy initialization
• KT-51063 Gradle project with JPS runner: "JUnitException: Failed to parse version" JUnit runner internal error with JUnit
• KT-52908 Native: setUnhandledExceptionHook swallows exceptions

Native

• KT-51043 Kotlin Native: ObjC-Interop: kotlin.ClassCastException: null cannot be cast to kotlin.Function2
• KT-50786 Native: prohibit suspend calls inside autoreleasepool {}
• KT-52834 Implement test infrastructure for K2/Native

Native. C Export

• KT-36878 Reverse C Interop: incorrect headers generation for primitive unassigned type arrays
• KT-53599 [Reverse C Interop] Provide box/unbox API for unsigned primitive types
• KT-41904 Kotlin/Native : error: duplicate member for interface and function with the same name
• KT-42830 [Reverse C Interop] Add API to get value of boxed primitives
• KT-39496 K/N C: optional unsigned types as function parameters crash the compiler
• KT-39015 Cannot compile native library with nullable inline class

Native. C and ObjC Import

• KT-54738 Cocoapods cinterop: linking platform.CoreGraphics package
• KT-54001 Kotlin/Native: support header exclusion in cinterop def files
• KT-53151 Native: Custom declarations in .def don't work with modules, only headers

Native. ObjC Export

• KT-53680 Obj-C refinement annotations
• KT-54119 Native: runtime assertion failed due to missing thread state switch
• KT-42641 Don't export generated component* methods from Kotlin data classes to Obj-C header

Native. Platform Libraries

• KT-54225 Native: update to Xcode 14.1
• KT-54164 Native: commonizer fails on CoreFoundation types
• KT-39747 Why is there no WinHttp API in Kotlin/Native's Windows API?

Native. Runtime

• KT-49228 Kotlin/Native: Allow to unset unhandled exception hook
• KT-27305 Fix FILE macro inside RuntimeCheck and RuntimeAssert

Native. Runtime. Memory

• KT-54498 Deprecation message of 'FreezingIsDeprecated' is not really helpful
• KT-53182 New memory manager: Unexpected memory usage on IOS

Native. Stdlib

• KT-52429 Small Usability Improvements for Worker API

Reflection

• KT-54629 Incorrectly cached class classifier
• KT-54611 KTypeImpl does not take into account class loader from the classifier property
• KT-48136 Make Reflection.getOrCreateKotlinPackage use cache when kotlin-reflect is used
• KT-50705 Use ClassValue to cache KClass objects in kotlin-reflect
• KT-53454 Properly cache the same class's KClass when it's loaded by multiple classloaders in getOrCreateKotlinClass

Specification

• KT-54210 Update Kotlin specification to mention that since 1.8 generics in value classes are allowed

Tools. CLI

• KT-54116 Add JVM target bytecode version 19
• KT-53278 Support values 6 and 8 for -Xjdk-release
• KT-46312 CLI: Kotlin runner should use platform class loader to load JDK modules on Java 9+

Tools. Commonizer

• KT-54310 Commonizer fails on 1.8.0-dev K/N distributions
• KT-48576 [Commonizer] platform.posix.pselect not commonized in Ktor

Tools. Compiler Plugins

• KT-46959 Kotlin Lombok: Support generated builders (@Builder)
• KT-53683 Unresolved reference compilation error occurs if a file is annotated with @ Singular and has any guava collection type : ImmutableTable, ImmutableList or else
• KT-53657 [K2] Unresolved reference compilation error occurs if a field is annotated with @ Singular and has type NavigableMap without explicit types specification
• KT-53647 [K2] Unresolved reference compilation error occurs if a field is annotated with @ Singular and has type Iterable<>
• KT-53724 Param of the @ Singular lombok annotation ignoreNullCollections=true is ignored by kotlin compiler
• KT-53451 [K2] References to methods generated by @ With lombok annotation can't be resolved with enabled K2 compiler
• KT-53721 [K2] There is no compilation error while trying to add null as a param of the field with non-null type
• KT-53370 Kotlin Lombok compiler plugin can't resolve methods generated for java boolean fields annotated with @ With annotation

Tools. Compiler plugins. Serialization

• KT-54878 JVM/IR: java.lang.ClassCastException: class org.jetbrains.kotlin.ir.types.impl.IrStarProjectionImpl cannot be cast to class org.jetbrains.kotlin.ir.types.IrTypeProjection on serializer<Box<*>>()
• KT-55340 Argument for kotlinx.serialization.UseSerializers does not implement KSerializer or does not provide serializer for concrete type
• KT-55296 Improve exceptions in serialization plugin
• KT-55180 KJS: regression in serialization for Kotlin 1.8.0-beta
• KT-53157 Recursion detected in a lazy value under LockBasedStorageManager in kotlinx.serialization
• KT-54297 Regression in serializable classes with star projections
• KT-49660 kotlinx.serialization: IndexOutOfBoundsException for parameterized sealed class
• KT-43910 JS IR: Serialization with base class: "IndexOutOfBoundsException: Index 0 out of bounds for length 0"

Tools. Daemon

• KT-52622 Kotlin/JS, Kotlin/Common compilations start Kotlin daemon incompatible with Kotlin/JVM compilation on JDK 8

Tools. Gradle

New Features

• KT-27301 Expose compiler flags via Gradle lazy properties
• KT-53357 Change single build metrics property
• KT-50673 Gradle: KotlinCompile task(s) should use @NormalizeLineEndings
• KT-34464 Kotlin build report path not clickable in the IDE

Performance Improvements

• KT-51525 [Gradle] Optimize evaluating args for compile tasks
• KT-52520 Remove usage of reflection from CompilerArgumentsGradleInput

Fixes

• KT-48843 Add ability to disable Kotlin daemon fallback strategy
• KT-55334 kaptGenerateStubs passes wrong android variant module names to compiler
• KT-55255 Gradle: stdlib version alignment fails build on dynamic stdlib version.
• KT-55363 [K1.8.0-Beta] Command line parsing treats plugin parameters as source files
• KT-54993 Raise kotlin.jvm.target.validation.mode check default level to error when build is running on Gradle 8+
• KT-54136 Duplicated classes cause build failure if a dependency to kotlin-stdlib specified in an android project
• KT-50115 Setting toolchain via Java extension does not configure 'kotlinOptions.jvmTarget' value when Kotlin compilation tasks are created eagerly
• KT-55222 Migrate AndroidDependencyResolver to the new Gradle API
• KT-55119 There is no validation for different jvmTarget and targetCompatibility values in multiplatform projects with jvm target and used java sources
• KT-55102 Compile java task fails with different target version in pure kotlin project
• KT-54995 [1.8.0-Beta] compileAppleMainKotlinMetadata fails on default parameters with No value passed for parameter 'mustExist'
• KT-35003 Automatically set targetCompatibility for kotlin-jvm projects to work with gradle 6 metadata
• KT-45335 kotlinOptions.jvmTarget conflicts with Gradle variants
• KT-48798 Android: going from one to more than one productFlavor causes inputs of commonSourceSet$kotlin_gradle_plugin property of compileKotlin task to change
• KT-55019 Gradle sync: UnknownConfigurationException when adding implementation dependencies to a Kotlin with Java compilation
• KT-55004 jvmTarget value is ignored by depending modules if a task "UsesKotlinJavaToolchain" is configured for all project modules using allProjects {}
• KT-54888 Add Gradle property to suppress kotlinOptions.freeCompilerArgs modification on execution phase
• KT-54399 Undeprecate 'kotlinOptions' DSL
• KT-54306 Change the naming of newly added Compiler*Options classes and interfaces
• KT-54580 KotlinOptions in AbstractKotlinCompilation class are deprecated
• KT-54653 java.lang.NoClassDefFoundError: kotlin/jdk7/AutoCloseableKt exception if a dependency to the kotlin-stdlib is added
• KT-52624 Compatibility with Gradle 7.3 release
• KT-54703 Stdlib substitution does not work with JPMS modules
• KT-54602 Prevent leaking Gradle Compile DSL types into compiler cli runtime
• KT-54439 Project failed to sync Native LaguageSettings to compiler options in afterEvaluate
• KT-53885 Bump minimal supported Gradle version to 6.8.3
• KT-53773 Protect and system properties can contain sensitive data
• KT-53732 Add custom values limits for build scan reports
• KT-52623 Compatibility with Gradle 7.2. release
• KT-51831 Gradle: remove kotlin.compiler.execution.strategy system property
• KT-51679 Change deprecation level to error for KotlinCompile setClasspath/getClasspath methods
• KT-54335 Kotlin build report configuration. There is no validation for SINGLE_FILE output if the required kotlin.build.report.single_file property is empty or absent
• KT-54356 Kotlin build report configuration. Wrong path is used for the property kotlin.internal.single.build.metrics.file
• KT-53617 KotlinCompilerExecutionStrategy value is ignored by depending modules if configure once for all project modules using allProjects {}
• KT-53823 Kotlin Gradle Plugin uses deprecated Gradle API: Provider.forUseAtConfigurationTime()
• KT-54142 Increase Kotlin Gradle plugin Gradle target API to 7.5
• KT-50161 Android variant filter breaks KotlinCompile cache compatibility
• KT-54113 LanguageSettings to KotlinNativeLink.toolOptions sync are executed on the wrong context
• KT-53830 Versions of kotlin-stdlib-jdk8 and kotlin-stdlib-jdk7 aren't overrided if added as transitive dependencies to kotlin-stdlib
• KT-54112 Missing target input on KotlinNativeLink task
• KT-45879 Documentation: Wrong kotlin languageVersion "1.6 (EXPERIMENTAL)"
• KT-54103 Remove JvmTarget.JVM_1_6 from generated Gradle compiler type
• KT-52959 KMP code is breaking Gradle project isolation
• KT-50598 MULTIPLE_KOTLIN_PLUGINS_SPECIFIC_PROJECTS_WARNING is only shown on first build
• KT-53246 Gradle: Special characters in paths of errors and warnings should be escaped
• KT-47730 How to avoid stdlib coming from Kotlin gradle plugin
• KT-52209 Corrupted cache and non-incremental build if produce caches "in process" and restore then compiling with kotlin daemon
• KT-41642 "TaskDependencyResolveException: Could not determine the dependencies" when trying to apply stdlib
• KT-53390 Drop usage of -Xjava-source-roots when passing java sources required for Kotlin compilation
• KT-52984 Kotlin Gradle plugin is misbehaving by resolving DomainObjectCollection early
• KT-38622 Non-incremental compilation because of R.jar with Android Gradle plugin 3.6
• KT-38576 AnalysisResult.RetryWithAdditionalRoots crashes during incremental compilation with java classes in classpath

Tools. Gradle. Cocoapods

• KT-54314 Cocoapods: Signing pod dependency for Xcode 14
• KT-54060 Xcode 14: disable bitcode embedding for Apple frameworks
• KT-53340 Change default linking type for frameworks registered by cocoapods plugin
• KT-53392 Deprecate and delete downloading pod dependencies by direct link
• KT-53695 Build of macOS application fails if a framework is integrated via Cocoapods plugin

Tools. Gradle. JS

• KT-53367 KJS: Migrate cssSupport API
• KT-45789 KJS / IR: Transitive NPM dependencies are not included in PublicPackageJsonTask output
• KT-55099 K/JS: Second declaration of JS target without compiler type report warning incorrectly
• KT-52951 [KGP/JS] Browser test target registration via properties
• KT-52950 KJS: Report if yarn.lock was updated during built
• KT-53374 KJS / Gradle: Implement IDEA sync detection logic via ValueSource to improve configuration cache support
• KT-53381 Kotlin/JS: with erased kotlin-js-store/ and reportNewYarnLock = true the task kotlinUpgradeYarnLock always fails
• KT-53788 KJS / Gradle: Disable Gradle build cache for KotlinJsDce when development mode is enabled
• KT-53614 Kotlin/JS upgrade npm dependencies

Tools. Gradle. Multiplatform

New Features

• KT-53396 Support 'implementation platform()' by gradle kotlin mpp plugin for JVM target
• KT-40489 MPP / Gradle: support BOM (enforcedPlatform) artifacts in source set dependencies DSL

Performance Improvements

• KT-52726 [MPP] Optimize caching/performance/call-sites of 'compilationsBySourceSets'

Fixes

• KT-54634 MPP: Test Failure causes: KotlinJvmTest$Executor$execute$1 does not define failure
• KT-35916 Gradle MPP plugin: Configurations for a main compilation and its default source set have different naming
• KT-46960 Repeated kotlin/native external libraries in project
• KT-27292 MPP: jvm { withJava() }: Gradle build: Java source under Kotlin root is resolved while building, but does not produce output class files
• KT-34650 Naming clash in MPP+Android: androidTest vs androidAndroidTest
• KT-54387 Remove MPP alpha stability warning
• KT-31468 Targets disambiguation doesn't work if a depending multiplatform module uses withJava() mode
• KT-54090 Take an Apple test device from the device list
• KT-54301 KotlinToolingVersionOrNull: IllegalArgumentException
• KT-53256 Implement K/N compiler downloading for KPM
• KT-45412 KotlinCompilation: Make sure .kotlinSourceSets and .allKotlinSourceSets include the default source set
• KT-49202 Tests on android target can't be executed in multiplatform project if dependency to kotlin-test framework is provided as a single dependency and tests configured to be executed via Junit5

Tools. Gradle. Native

New Features

• KT-43293 Support Gradle configuration caching with Kotlin/Native
• KT-53107 Add arm64 support for watchOS targets (Xcode 14)

Fixes

• KT-53704 Native cinterop: eager header path calculation
• KT-54814 Kotlin/Native: Github Actions: Testing watchOSX64 with Xcode 14 — Invalid device: Apple Watch Series 5
• KT-54627 Native: :commonizeNativeDistribution with configuration cache enabled fails even when set to warn on JDK 17
• KT-54339 Link tasks fail if Gradle Configuration Cache is enabled
• KT-53191 Native cinterop sync problem with gradle
• KT-54583 watchosDeviceArm64 target shouldn't register test tasks
• KT-52303 Gradle / Native: Build tasks ignore project.buildDir
• KT-54442 Gradle iOS test tasks fail if a device is not selected explicitly
• KT-54177 Gradle: Deprecate enableEndorsedLibs flag
• KT-47355 Support macos target for FatFramework task
• KT-53339 MPP / CocoaPods: The static framework fails to install on a real iOS device
• KT-31573 Missing description for Native Gradle tasks
• KT-53131 Gradle Sync: "NoSuchElementException: Array contains no element matching the predicate" with CocoaPods
• KT-53686 Task assembleReleaseXCFramework fails with "error: the path does not point to a valid framework" if project name contains a dash

Tools. Incremental Compile

• KT-54144 New IC: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing an inline function with custom JvmName
• KT-53871 New IC: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing an inline property accessor
• KT-19804 Relocatable IC caches

Tools. JPS

• KT-45474 False positive NO_ELSE_IN_WHEN on sealed class with incremental compilation
• KT-54228 Switching abstract to sealed classes causes incremental issue
• KT-38483 JPS: Stopping compilation causes IDE CompilationCanceledException
• KT-50310 False positive NO_ELSE_IN_WHEN on incremental build when adding sealed classes
• KT-48813 Move cache version to compiler
• KTIJ-921 JPS: FileNotFoundException on project build in mixed Kotlin/Scala project

Tools. Kapt

• KT-54187 JVM IR + kapt: incorrect modifier final is generated for nested enum in interface
• KT-48827 Remove 'kapt.use.worker.api' property

Tools. Scripts

• KT-54355 Scripts: Internal compiler error (languageVersion=1.9)
• KT-53009 Scripting: NDFDE “Descriptor wasn't found for declaration SCRIPT” on using script definition with kotlin from master

Checksums

File	Sha256
kotlin-compiler-1.8.0.zip	0bb9419fac9832a56a3a19cad282f8f2d6f1237d2d467dc8dfe9bd4a2a43c42e
kotlin-native-linux-x86_64-1.8.0.tar.gz	1634d4fa815c5cbd5d4f67526501ab0637e99efe3b1c279bb648f60425dc9688
kotlin-native-macos-x86_64-1.8.0.tar.gz	e3764714c4b3f4fe5925d1bf55cb4f79c9d63fd0110ba337a3e4729cc0236c5e
kotlin-native-macos-aarch64-1.8.0.tar.gz	75a49236907e0b577558a8353b4ab3221a5073ee4835fa72ec3b0448bd60aca5
kotlin-native-windows-x86_64-1.8.0.zip	3c552df79b62afb229e3e3dcef2797fd1eaae307b0903ccfd473665bb4a2238d

Changelog

Compiler

• KT-55357 IllegalStateException when reading a class that delegates to a Java class with a definitely-not-null type with a flexible upper bound
• KT-55068 Kotlin Gradle DSL: No mapping for symbol: VALUE_PARAMETER SCRIPT_IMPLICIT_RECEIVER on JVM IR backend
• KT-51284 SAM conversion doesn't work if method has context receivers
• KT-55065 Kotlin Gradle DSL: Reflection cannot find class data for lambda, produced by JVM IR backend

Tools. Compiler plugins. Serialization

• KT-55340 Argument for kotlinx.serialization.UseSerializers does not implement KSerializer or does not provide serializer for concrete type

Tools. Gradle

• KT-55334 kaptGenerateStubs passes wrong android variant module names to compiler
• KT-55255 Gradle: stdlib version alignment fails build on dynamic stdlib version.
• KT-55363 [K1.8.0-Beta] Command line parsing treats plugin parameters as source files

Checksums

File	Sha256
kotlin-compiler-1.8.0-RC2.zip	149492cac31a94e8ee5173035520bb31286f6f6eb004cc0306b47127f7a72ce9
kotlin-native-linux-x86_64-1.8.0-RC2.tar.gz	859031d2f8dc86398a3484a9103eea3dffbe546be658063bff69913c2d1d7233
kotlin-native-macos-x86_64-1.8.0-RC2.tar.gz	cb25632ddc061c04a0a7a23a3afdf9dcc5a8c5d4a536fd8b5396be700ad87b38
kotlin-native-macos-aarch64-1.8.0-RC2.tar.gz	9ba55a4e4ca3fc263d9758bd5f5ded732c0ef53fae7920a495715907c9a43c33
kotlin-native-windows-x86_64-1.8.0-RC2.zip	2c6a2b11523929563845b945faa8b7c481727d0408d18e41dcd48bf6bdf7e570

This project publishes no release notes. Between v1.8.0-RC and v1.8.0-RC2 there were 16 commits, 16 of them substantive:

• Handle situation where KSerializer is absent from immediate supertypes
• [Gradle] Add an integration test for KT-55363
• [Gradle] Don't convert free compiler arguments to set, avoid args duplication
• Postpone ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated
• Adjust test data for postponing ProhibitUsingNullableTypeParameterAgainstNotNullAnnotated
• Make sure that fix for KT-53041 works with additional LF
• JVM IR: script is a valid container for local delegated properties
• Fix deserialization exception for DNN types from Java
• Scripting, tests: enable custom script tests with IR
• Scripting, IR: fix capturing of implicit receiver
• Fix version parsing crash on Gradle rich version string
• Specify versions-maven-plugin version explicitly
• Fix task module-name is not propagated to compiler arguments
• Don't leave Gradle daemons after build scripts
• Call additional publishToMavenLocal in maven build scripts and enable info
• Add ChangeLog for 1.8.0-RC2

Changelog

Compiler

• KT-55108 IR interpreter: Error occurred while optimizing an expression: VARARG
• KT-54884 "StackOverflowError: null" caused by Enum constant name in constructor of the same Enum constant
• KT-55013 State checker use-after-free with XCode 14.1
• KT-54275 K2: "IllegalArgumentException: KtParameter is not a subtype of class KtAnnotationEntry for factory REPEATED_ANNOTATION"

JavaScript

• KT-55097 KJS / IR + IC: Using an internal function from a friend module throws an unbound symbol exception
• KT-54934 KJS / IR + IC: Suspend abstract function stubs are generated with unstable lowered ic signatures
• KT-54895 KJS / IR + IC: broken cross module references for function default param wrappers

Language Design

• KT-48516 Forbid @Synchronized annotation on suspend functions

Libraries

• KT-54835 Document that Iterable.all(emptyCollection) returns TRUE.
• KT-54168 Expand on natural order in comparator docs

Native. Platform Libraries

• KT-54225 Native: update to Xcode 14.1

Tools. Compiler plugins. Serialization

• KT-55296 Improve exceptions in serialization plugin
• KT-55180 KJS: regression in serialization for Kotlin 1.8.0-beta
• KT-54878 JVM/IR: java.lang.ClassCastException: class org.jetbrains.kotlin.ir.types.impl.IrStarProjectionImpl cannot be cast to class org.jetbrains.kotlin.ir.types.IrTypeProjection on serializer<Box<*>>()

Tools. Gradle

• KT-50115 Setting toolchain via Java extension does not configure 'kotlinOptions.jvmTarget' value when Kotlin compilation tasks are created eagerly
• KT-55222 Migrate AndroidDependencyResolver to the new Gradle API
• KT-54993 Raise kotlin.jvm.target.validation.mode check default level to error when build is running on Gradle 8+
• KT-54995 [1.8.0-Beta] compileAppleMainKotlinMetadata fails on default parameters with No value passed for parameter 'mustExist'
• KT-45335 kotlinOptions.jvmTarget conflicts with Gradle variants
• KT-55019 Gradle sync: UnknownConfigurationException when adding implementation dependencies to a Kotlin with Java compilation
• KT-55004 jvmTarget value is ignored by depending modules if a task "UsesKotlinJavaToolchain" is configured for all project modules using allProjects {}
• KT-54888 Add Gradle property to suppress kotlinOptions.freeCompilerArgs modification on execution phase

Tools. Gradle. JS

• KT-55099 K/JS: Second declaration of JS target without compiler type report warning incorrectly

Tools. Gradle. Multiplatform

• KT-54634 MPP: Test Failure causes: KotlinJvmTest$Executor$execute$1 does not define failure

Tools. Incremental Compile

• KT-54144 New IC: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing an inline function with custom JvmName

Checksums

File	Sha256
kotlin-compiler-1.8.0-RC.zip	20437cf085cfc1e70d63ba0be9034db1c4dd9f280872b626213f974b130b8dfe
kotlin-native-linux-x86_64-1.8.0-RC.tar.gz	195b2ef759a28138df5e305259b77b3512ad1942c3aaed2dd2cba54235ac693f
kotlin-native-macos-x86_64-1.8.0-RC.tar.gz	d7b55e44f0a41f7e1b62d41fad4d130a6bbe981422776cd8b1c98d13c0e209d9
kotlin-native-macos-aarch64-1.8.0-RC.tar.gz	a91fb1b057140dc5508b0a83bd551384e3d0364196f45ca5dbe4e2ff51113fc5
kotlin-native-windows-x86_64-1.8.0-RC.zip	d38a39e1e53bba5bdb5f52a04e55dca360dcc527434d2c5c338c92ba1bf03b6a

This project publishes no release notes. Between v1.8.0-Beta and v1.8.0-RC there were 59 commits, 59 of them substantive:

• Configure compilation -jvm-target also from Java toolchain spec
• [Gradle] Agp7AddKotlinSourcesToAndroidSourceSetConfigurator: Workaround KTIJ-22631
• Atomicfu plugin (JS IR): fix for private delegated properties
• Atomicfu-compiler plugin: update test text files.
• Handle changes to inline functions/property accessors with @JvmNames
• [K/N] Fix large array allocations ^KT-54659
• [K/N][codegen] Fixed bug with huge arrays during escape analysis
• [K/N] Crash with OOM on large array allocations ^KT-54659
• Allow to suppress kotlinOptions.freeCompiler args modification warning
• [JS IR] Fix the instability of LoweredDeclarationSignature
• [JS IR] Take default params into account for calculating an IC hash
• [K/N] Fix calls checker use-after-free in main thread deinit
• [K/N] Better fix for calls checker use-after-free in main thread deinit
• [K/N] Bump Xcode dependency to 14.1 RC
• [K/N] Bump macOS SDK version
• [K/N] Fix platform libs for macOS 14.1 SDK.
• [K/N] xcode 14.1 rc2
• [K/N] Update macOS SDK to Xcode 14.1
• [K/N] Update SDK versions for iOS/watchOS/tvOS
• Fix configurations in dependency handler of KotlinWithJavaCompilation

…and 39 more.

1.8.0-Beta

Android

• KT-53013 Increase AGP compile version in KGP to 4.1.3
• KT-53709 MPP, Android SSL2: Conflicting warnings for androidTest/kotlin source set folder

Backend. Native. Debug

• KT-53561 Invalid LLVM module: "inlinable function call in a function with debug info must have a !dbg location"

Compiler

New Features

• KT-53916 Support Xcode 14 and new Objective-C frameworks in Kotlin/Native compiler
• KT-54460 Implementation of non-local break and continue
• KT-32208 Generate method annotations into bytecode for suspend lambdas (on invokeSuspend)
• KT-53438 Introduce a way to get SourceDebugExtension attribute value via JVMTI for profiler and coverage

Performance Improvements

• KT-53347 Get rid of excess allocations in parser
• KT-53689 JVM: Optimize equality on class literals

Fixes

• KT-52974 "IllegalStateException: Symbol with IrSimpleFunctionSymbolImpl is unbound" compiling native targets of MPP project
• KT-48678 Coroutine debugger: disable "was optimised out" compiler feature
• KT-54745 Restore KtToken constructors without tokenId parameter to preserve back compatibility
• KT-54650 Binary incompatible ABI change in Kotlin 1.7.20
• KT-52786 Frontend / K2: IndexOutOfBoundsException when opting in to K2
• KT-54004 Builder type inference does not work correctly with variable assignment and breaks run-time
• KT-54581 JVM: "VerifyError: Bad type on operand stack" with generic inline function and when inside try-catch block
• KT-52913 JVM / IR: "IllegalArgumentException: Inline class types should have the same representation" when trying to down cast cast a value class
• KT-54600 NPE on passing nullable Kotlin lambda as Java's generic SAM interface with super type bound
• KT-54463 Delegating to a field with a platform type causes java.lang.NoSuchFieldError: value$delegate
• KT-54509 Ir Interpreter: unable to evaluate string concatenation with "this" as argument
• KT-54393 Change in behavior from 1.7.10 to 1.7.20 for java field override.
• KT-54615 JVM: Internal error in file lowering: java.lang.AssertionError: Error occurred while optimizing an expression
• KT-53146 JVM IR: unnecessary checkcast of null leads to NoClassDefFoundError if the type isn't available at runtime
• KT-51868 JVM / IR: Inconsistent behaviour between lambda expression and SAM interface conversion for the same interface
• KT-53947 IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER
• KT-53712 Add mode to prevent generating JVM 1.8+ annotation targets (TYPE_USE, TYPE_PARAMETER)
• KT-48532 Remove old JVM backend
• KT-35187 NullPointerException on compiling suspend inline fun with typealias to suspend function type
• KT-54275 K2: "IllegalArgumentException: KtParameter is not a subtype of class KtAnnotationEntry for factory REPEATED_ANNOTATION"
• KT-47475 "IncompatibleClassChangeError: disagree on InnerClasses attribute": cross-module inlined WhenMappings has mismatched InnerClasses
• KT-53197 K2: 'init' hides member of supertype 'UIComponent' and needs 'override' modifier
• KT-53867 K2: @JvmRecord does not compile to a java record
• KT-53964 K2 is unable to work with Java records
• KT-53349 K2: TYPE_MISMATCH caused by non-local return
• KT-54100 "Type variable TypeVariable(P) should not be fixed" crash in code with errors
• KT-49017 Forbid usages of super or super<Some> if in fact it accesses an abstract member
• KT-54192 Warn about unsupported feature on generic inline class parameters
• KT-53723 Friend modules aren't getting passed to cache build during box tests
• KT-53873 K2: Duplicated diagnostics reported from user type ref checkers
• KT-50909 "VerifyError: Bad type on operand stack" caused by smartcasting for nullable inline class property in class
• KT-48031 "IllegalStateException: Type variable TypeVariable(T) should not be fixed!"
• KT-54115 Restore Psi2IrTranslator constructor from 1.7.20
• KT-53908 K2: Self-referencing generics in Java class causes New Inference Error (IE: class Foo<T extends Foo<T>>)
• KT-53193 K2: compile error on project that compiles fine with normal 1.7.10
• KT-53953 Forbid usages of super or super<Some> if in fact it accesses an abstract member
• KT-47473 NI: Missed UPPER_BOUND_VIOLATED diagnostics if use type aliases with type parameters
• KT-54049 K2: false positive MANY_IMPL_MEMBER_NOT_IMPLEMENTED
• KT-30054 Wrong approximation if nullable anonymous object with implemented interface is used
• KT-53751 Postpone IgnoreNullabilityForErasedValueParameters feature
• KT-53324 Implement Enum.entries lowering on K/N
• KT-44441 K2: report redeclaration error if there is a Java class with the same name as the Kotlin class
• KT-53493 K2: val on function parameter counts as just warning
• KT-53435 K2: "IllegalArgumentException: class KtValueArgument is not a subtype of class KtExpression for factory ANNOTATION_ARGUMENT_MUST_BE_CONST" if string in nested annotation is concatenated
• KT-52927 AssertionError: LambdaKotlinCallArgumentImpl
• KT-53922 Make Enum.entries unstable feature to poison binaries
• KT-53783 Exception during psi2ir when declaring expect data object
• KT-41670 JVM IR: AbstractMethodError when using inheritance for fun interfaces
• KT-53178 K2: implement diagnostics for serialization plugin
• KT-53465 Unnecessary checkcast to array of reified type is not optimized since Kotlin 1.6.20
• KT-52970 Default value constant in companion object works on JVM and JS, but fails on native
• KT-27936 Write InnerClasses attribute for all class names used in a class file
• KT-53007 JVM: "Bad invokespecial instruction: current class isn't assignable to reference class" when call superclass of outer class method from inner class
• KT-53261 Evaluate effect from <T-unbox> inline for primitive types
• KT-39492 Kotlin.Metadata's packageName field cannot be an empty string
• KT-53664 Ir Interpreter: unable to evaluate name of function reference marked with JvmStatic from another module
• KT-52478 [Native] Partial linkage: Building native binary from cached KLIBs fails if one library depends on removed nested callable member from another one
• KT-53667 Compiler crashes on attempt to alloc a string on the stack in new MM
• KT-48822 CompilationException: Back-end (JVM) Internal error: Failed to generate expression: KtProperty - ConcurrentModificationException
• KT-50281 IllegalStateException: unsupported call of reified inlined function
• KT-53480 Internal error in file lowering: java.lang.ClassNotFoundException: com.android.systemui.R$string
• KT-50083 Different error messages in android and JVM (Intrinsics.checkNotNullParameter).
• KT-53270 K1: implement synthetic Enum.entries property
• KT-41017 FIR: should we support smartcast after null check
• KT-52823 Cannot access class Thread.State after upgrading to 1.7 from 1.6.1 using -Xjdk-release=1.8
• KT-53257 FIR: Improper context receiver argument is chosen when there are two extension receiver candidates
• KT-53090 Anonymous function and extension function literals are generated as classes even with -Xlambdas=indy
• KT-53208 K2: Cannot get annotation for default interface method parameter when compiled with -Xuse-k2
• KT-53184 K2: NoSuchMethodError on KProperty1.get() referenced via nullable typealias
• KT-53198 K2: Return type mismatch: expected kotlin/Unit, actual kotlin/Unit?
• KT-53100 Optimization needed: <T-unbox>(CONSTANT_PRIMITIVE(x: T?)) => x
• KT-49875 [FIR] Support infering PRIVATE_TO_THIS visibility
• KT-53024 Refactor FIR renderer to composable architecture
• KT-29168 Prohibit upper bounds violation with generic typealias using not all type parameters as arguments for underlying type in supertypes
• KT-53148 K1: introduce warning for inline virtual member in enum
• KT-53041 NPE in Kotlin 1.7.0 when using RxJava Maybe.doOnEvent with anonymous parameters
• KT-49847 Devirtualization fails to eliminate boxing in function reference context
• KT-52875 Extension function literal creation with -Xlambdas=indy fails with incorrect arguments
• KT-53072 INVALID_IF_AS_EXPRESSION error isn't shown in the IDE (LV 1.8)
• KT-52985 Native: a function with type T? returned a kotlin.Unit instead of null
• KT-52020 FIR warning message includes internal rendering
• KT-50835 Inline functions with suspend lambdas break the tail-call optimization
• KT-54802 "VerifyError: Bad type on operand stack" for inline functions on arrays

IDE

• KT-48773 Investigate the possibility of removing dependency on old JVM backend in light classes
• KT-51101 FIR IDE: Exception on "Show Type Info" action
• KT-51656 FIR IDE: ProgressCancelled exception is masked in the compiler during resolve
• KT-51315 FIR IDE: move out base modules from fe10 plugin to reuse in k2 plugin
• KT-53097 Extract common part of light classes to another module

IDE. Debugger

• KT-51755 Compilation exception with scripting compilation during debug session

IDE. Gradle Integration

• KT-53514 HMPP: False positive for None of the following functions can be called with the arguments supplied. with Enum in common module
• KT-48135 In the IDE import, reuse dependency granular source set KLIBs across multi-project build to avoid duplicate external libraries
• KT-51583 Gradle 7.4+ | SamplesVariantRule interference: Could not resolve all files for configuration ':kotlinKlibCommonizerClasspath'

IDE. Inspections and Intentions

• KT-49643 Intentions: "Implement members" fails when base type function declaration uses unresolved generic types

IDE. Navigation

• KT-51314 FIR IDE: show Kotlin declarations in search symbol

IDE. Script

• KT-54325 .settings.gradle.kts and .init.gradle.kts are reported as standalone scripts

IDE. Tests Support

• KT-50269 FIR IDE: Allow running tests via gutter

JavaScript

Fixes

• KT-53931 KJS / Gradle: Regression with 1.7.20-RC: ReferenceError: println is not defined
• KT-54520 KJS / IR Allow IdSignature clashes
• KT-54686 KJS / IR: Incorrect generation of signatures when one of argument is nested class
• KT-54479 KJS / IR + IC: Adding or removing companion fields leads java.lang.IllegalStateException in the compiler IC infrastructure
• KT-54382 KJS / IR: Wrong type check for inheritors of suspend functions
• KT-54323 KJS / IR + IC: Intrinsics from stdlib may lose their dependencies in incremental rebuild
• KT-53361 KJS / IR: No debug info is generated for in-line js code
• KT-53321 Implement Enum.entries lowering on JS/IR
• KT-53112 KJS IR turn on IC infra by default
• KT-50503 Kotlin/JS: IR + IC: compileTestDevelopmentExecutableKotlinJs fails with ISE: "Could not find library" after removing module dependency
• KT-54120 JS IR + IC: pointless invalidation of dependent code after modifying companions
• KT-54011 JS IR + IC: EnumEntries don't work well when IC is enabled
• KT-54010 JS IR + IC: Force IC cache invalidation after updating language version or features
• KT-53672 KJS / IR: "IndexOutOfBoundsException: Index 0 out of bounds for length 0" caused by function reference to extension function of reified type variable
• KT-43455 KJS: IR. Incremental compilation problem with unbound symbols
• KT-53539 KJS: Exported class inherited non-exported class shows warning
• KT-53443 KJS/IR: NullPointerException caused by anonymous objects inside lambdas
• KT-52795 K/JS and K/Native IR-validation/compilation errors for a valid kotlin code
• KT-52805 KJS/IR: Invalid call of inline function in also block
• KT-51151 KJS / IR: Wrong overloaded generic method with receiver is called
• KT-52830 KJS/IR: Sourcemap disabling doesn't work
• KT-52968 KJS / IR: Buggy generation of overridden methods
• KT-53063 KJS / IR + IC: undefined cross module reference for implemented interface functions
• KT-51099 KJS / IR + IC: Cache invalidation doesn't check generic class variance annotations (in, out)
• KT-51090 KJS / IR + IC: Cache invalidation doesn't check suspend qualifier
• KT-51088 KJS / IR + IC: Cache invalidation doesn't check class qualifiers (data, inline)
• KT-51083 KJS / IR + IC: Cache invalidation doesn't check inline function which was non inline initially
• KT-51896 KJS / IR + IC: Cache invalidation doesn't trigger rebuild for fake overridden inline functions

Language Design

• KT-41886 Ability to require opt-in for interface implementation, but not for usage
• KT-34943 OVERLOAD_RESOLUTION_AMBIGUITY inconsistent with the equivalent Java code
• KT-49110 Prohibit access to members of companion of enum class from initializers of entries of this enum

Libraries

New Features

• KT-21007 Provide Kotlin OSGI Bundle with extensions for JRE8 (and JRE7)
• KT-54082 Comparable and subtractible TimeMarks
• KT-50484 Extensions for java.util.Optional in stdlib
• KT-52928 Provide copyToRecursively and deleteRecursively extension functions for java.nio.file.Path
• KT-52932 Open-ended ranges in the standard library
• KT-49425 Update OptIn documentation to reflect latest design changes
• KT-54005 Allow calling declaringJavaClass on Enum<E>
• KT-52933 rangeUntil members in built-in types

Performance Improvements

• KT-53508 Cache typeOf-related KType instances when kotlin-reflect is used

Fixes

• KT-51907 Switch JVM target of the standard libraries to 1.8
• KT-53277 Stabilize experimental API for 1.8
• KT-53864 Review deprecations in stdlib for 1.8
• KT-47707 Remove the system property and the brittle contains optimization code itself
• KT-52336 Different behavior on JVM and Native in stringBuilder.append(charArray, 0, 1)
• KT-53927 Remove deprecation from ConcurrentModificationException constructors
• KT-53134 stdlib > object Charsets > not thread safe lazy initialization
• KT-51063 Gradle project with JPS runner: "JUnitException: Failed to parse version" JUnit runner internal error with JUnit
• KT-52908 Native: setUnhandledExceptionHook swallows exceptions

Native

• KT-51043 Kotlin Native: ObjC-Interop: kotlin.ClassCastException: null cannot be cast to kotlin.Function2
• KT-50786 Native: prohibit suspend calls inside autoreleasepool {}
• KT-53346 MPP project with kotlinx-serialization-json:1.4.0-RC is not built
• KT-52834 Implement test infrastructure for K2/Native

Native. C Export

• KT-36878 Reverse C Interop: incorrect headers generation for primitive unassigned type arrays
• KT-53599 [Reverse C Interop] Provide box/unbox API for unsigned primitive types
• KT-41904 Kotlin/Native : error: duplicate member for interface and function with the same name
• KT-42830 [Reverse C Interop] Add API to get value of boxed primitives
• KT-39496 K/N C: optional unsigned types as function parameters crash the compiler
• KT-39015 Cannot compile native library with nullable inline class

Native. C and ObjC Import

• KT-54738 Cocoapods cinterop: linking platform.CoreGraphics package
• KT-54001 Kotlin/Native: support header exclusion in cinterop def files
• KT-53151 Native: Custom declarations in .def don't work with modules, only headers

Native. ObjC Export

• KT-53680 Obj-C refinement annotations
• KT-54119 Native: runtime assertion failed due to missing thread state switch
• KT-42641 Don't export generated component* methods from Kotlin data classes to Obj-C header

Native. Platform Libraries

• KT-39747 Why is there no WinHttp API in Kotlin/Native's Windows API?

Native. Runtime

• KT-49228 Kotlin/Native: Allow to unset unhandled exception hook
• KT-27305 Fix FILE macro inside RuntimeCheck and RuntimeAssert

Native. Runtime. Memory

• KT-54498 Deprecation message of 'FreezingIsDeprecated' is not really helpful
• KT-53182 New memory manager: Unexpected memory usage on IOS

Native. Stdlib

• KT-52429 Small Usability Improvements for Worker API

Reflection

• KT-54611 KTypeImpl does not take into account class loader from the classifier property
• KT-48136 Make Reflection.getOrCreateKotlinPackage use cache when kotlin-reflect is used
• KT-50705 Use ClassValue to cache KClass objects in kotlin-reflect
• KT-53454 Properly cache the same class's KClass when it's loaded by multiple classloaders in getOrCreateKotlinClass

Specification

• KT-53646 Incorporate rangeUntil (..<) operator into specification

Tools. CLI

• KT-54116 Add JVM target bytecode version 19
• KT-53278 Support values 6 and 8 for -Xjdk-release
• KT-46312 CLI: Kotlin runner should use platform class loader to load JDK modules on Java 9+

Tools. Commonizer

• KT-54310 Commonizer fails on 1.8.0-dev K/N distributions
• KT-48576 [Commonizer] platform.posix.pselect not commonized in Ktor

Tools. Compiler Plugins

• KT-46959 Kotlin Lombok: Support generated builders (@Builder)
• KT-53647 [K2] Unresolved reference compilation error occurs if a field is annotated with @ Singular and has type Iterable<>

Tools. Compiler plugins. Serialization

• KT-53157 Recursion detected in a lazy value under LockBasedStorageManager in kotlinx.serialization
• KT-49660 kotlinx.serialization: IndexOutOfBoundsException for parameterized sealed class
• KT-43910 JS IR: Serialization with base class: "IndexOutOfBoundsException: Index 0 out of bounds for length 0"

Tools. Daemon

• KT-52622 Kotlin/JS, Kotlin/Common compilations start Kotlin daemon incompatible with Kotlin/JVM compilation on JDK 8

Tools. Gradle

• KT-54703 Stdlib substitution does not work with JPMS modules

New Features

• KT-53357 Change single build metrics property
• KT-34464 Kotlin build report path not clickable in the IDE

Performance Improvements

• KT-52520 Remove usage of reflection from CompilerArgumentsGradleInput
• KT-53118 Fully up-to-date builds are slower with Kotlin 1.7.0

Fixes

• KT-54136 Duplicated classes cause build failure if a dependency to kotlin-stdlib specified in an android project
• KT-51923 Improve usability of errors and warnings by being able to click on them
• KT-54439 Project failed to sync Native LaguageSettings to compiler options in afterEvaluate
• KT-54399 Undeprecate 'kotlinOptions' DSL
• KT-54306 Change the naming of newly added Compiler*Options classes and interfaces
• KT-53885 Bump minimal supported Gradle version to 6.8.3
• KT-53773 Protect and system properties can contain sensitive data
• KT-53732 Add custom values limits for build scan reports
• KT-52624 Compatibility with Gradle 7.3 release
• KT-51831 Gradle: remove kotlin.compiler.execution.strategy system property
• KT-51679 Change deprecation level to error for KotlinCompile setClasspath/getClasspath methods
• KT-48843 Add ability to disable Kotlin daemon fallback strategy
• KT-53617 KotlinCompilerExecutionStrategy value is ignored by depending modules if configure once for all project modules using allProjects {}
• KT-53823 Kotlin Gradle Plugin uses deprecated Gradle API: Provider.forUseAtConfigurationTime()
• KT-54142 Increase Kotlin Gradle plugin Gradle target API to 7.5
• KT-50161 Android variant filter breaks KotlinCompile cache compatibility
• KT-54113 LanguageSettings to KotlinNativeLink.toolOptions sync are executed on the wrong context
• KT-54112 Missing target input on KotlinNativeLink task
• KT-45879 Documentation: Wrong kotlin languageVersion "1.6 (EXPERIMENTAL)"
• KT-54103 Remove JvmTarget.JVM_1_6 from generated Gradle compiler type
• KT-50598 MULTIPLE_KOTLIN_PLUGINS_SPECIFIC_PROJECTS_WARNING is only shown on first build
• KT-52209 Corrupted cache and non-incremental build if produce caches "in process" and restore then compiling with kotlin daemon
• KT-41642 "TaskDependencyResolveException: Could not determine the dependencies" when trying to apply stdlib
• KT-53390 Drop usage of -Xjava-source-roots when passing java sources required for Kotlin compilation
• KT-38622 Non-incremental compilation because of R.jar with Android Gradle plugin 3.6
• KT-53615 Gradle: Fix deprecation warnings in CleanableStoreImpl
• KT-38576 AnalysisResult.RetryWithAdditionalRoots crashes during incremental compilation with java classes in classpath
• KT-53244 Report from gradle about compiler plugins
• KT-45747 Add basic JUnit 5 Kotlin Gradle Plugin Android tests setup
• KT-52839 Warn in Gradle log why incremental compilation failed

Tools. Gradle. Cocoapods

• KT-54314 Cocoapods: Signing pod dependency for Xcode 14
• KT-54060 Xcode 14: disable bitcode embedding for Apple frameworks
• KT-53127 Cocoapod plugin ignores pod version
• KT-53340 Change default linking type for frameworks registered by cocoapods plugin
• KT-53392 Deprecate and delete downloading pod dependencies by direct link
• KT-53695 Build of macOS application fails if a framework is integrated via Cocoapods plugin
• KT-53174 CocoaPods: Synthetic Podfile does not specify platform

Tools. Gradle. JS

• KT-53374 KJS / Gradle: Implement IDEA sync detection logic via ValueSource to improve configuration cache support
• KT-53788 KJS / Gradle: Disable Gradle build cache for KotlinJsDce when development mode is enabled
• KT-53614 Kotlin/JS upgrade npm dependencies
• KT-52950 KJS: Report if yarn.lock was updated during built
• KT-53367 KJS: Migrate cssSupport API
• KT-45789 KJS / IR: Transitive NPM dependencies are not included in PublicPackageJsonTask output

Tools. Gradle. Multiplatform

New Features

• KT-53396 Support 'implementation platform()' by gradle kotlin mpp plugin for JVM target
• KT-40489 MPP / Gradle: support BOM (enforcedPlatform) artifacts in source set dependencies DSL

Fixes

• KT-27292 MPP: jvm { withJava() }: Gradle build: Java source under Kotlin root is resolved while building, but does not produce output class files
• KT-34650 Naming clash in MPP+Android: androidTest vs androidAndroidTest
• KT-54387 Remove MPP alpha stability warning
• KT-31468 Targets disambiguation doesn't work if a depending multiplatform module uses withJava() mode
• KT-35916 Gradle MPP plugin: Configurations for a main compilation and its default source set have different naming
• KT-54090 Take an Apple test device from the device list
• KT-53256 Implement K/N compiler downloading for KPM
• KT-45412 KotlinCompilation: Make sure .kotlinSourceSets and .allKotlinSourceSets include the default source set
• KT-54071 MPP/AGP compatibility: Bump maxSupportedVersion to 7.3.0

Tools. Gradle. Native

• KT-53191 Native cinterop sync problem with gradle
• KT-54583 watchosDeviceArm64 target shouldn't register test tasks
• KT-53107 Add arm64 support for watchOS targets (Xcode 14)
• KT-52303 Gradle / Native: Build tasks ignore project.buildDir
• KT-47355 Support macos target for FatFramework task
• KT-53339 MPP / CocoaPods: The static framework fails to install on a real iOS device
• KT-31573 Missing description for Native Gradle tasks
• KT-53131 Gradle Sync: "NoSuchElementException: Array contains no element matching the predicate" with CocoaPods
• KT-53686 Task assembleReleaseXCFramework fails with "error: the path does not point to a valid framework" if project name contains a dash

Tools. Incremental Compile

• KT-53266 Increment Compilation: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing companion object constant field
• KT-53871 New IC: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing an inline property accessor
• KT-53231 New IC reports build failures for missing classpath snapshots
• KT-19804 Relocatable IC caches
• KT-52946 CompileKotlinJs task is executed non-incrementally if there were changes made to the dependant module

Tools. JPS

• KT-45474 False positive NO_ELSE_IN_WHEN on sealed class with incremental compilation
• KT-54228 Switching abstract to sealed classes causes incremental issue
• KT-38483 JPS: Stopping compilation causes IDE CompilationCanceledException
• KT-50310 False positive NO_ELSE_IN_WHEN on incremental build when adding sealed classes
• KT-48813 Move cache version to compiler

Tools. Kapt

• KT-54187 JVM IR + kapt: incorrect modifier final is generated for nested enum in interface
• KT-48827 Remove 'kapt.use.worker.api' property
• KT-52761 Kotlin 1.7.0 breaks kapt processing for protobuf generated java sources

Tools. Scripts

• KT-54355 Scripts: Internal compiler error (languageVersion=1.9)
• KT-53009 Scripting: NDFDE “Descriptor wasn't found for declaration SCRIPT” on using script definition with kotlin from master

Checksums

File	Sha256
kotlin-compiler-1.8.0-Beta.zip	2c1130237c8673280f0fc4d178c26203884619d80f795caf61a51e802b6aa262
kotlin-native-linux-x86_64-1.8.0-Beta.tar.gz	2ef565d7e4f2e4d22cab5ee472bee25f9509ebb419bcfecfd54afecf0b191d5e
kotlin-native-macos-x86_64-1.8.0-Beta.tar.gz	d336bae2a889feda05638d379ffb616bb376d1b5b26a0e6a8b80d361c626f5a7
kotlin-native-macos-aarch64-1.8.0-Beta.tar.gz	fb20d9589ea092f0a9f62a57a97d8993231a3d60f236deb765611e0b5cfd0b99
kotlin-native-windows-x86_64-1.8.0-Beta.zip	88946eea7f379744745463fa1f1efbd33a3c97d373fb132e3b99f1769de98af2

This project publishes no release notes. Between v1.7.22 and v1.8.0-Beta there were 250 commits, 249 of them substantive:

• [K/N] Bump Xcode SDK versions
• [K/N] Bump Xcode version in README.md
• [K/N] Add workaround for NS_FORMAT_ARGUMENT(A)
• [K/N] Fix defFileDependencies
• [K/N] update macOS platform libs for Xcode 14
• [K/N] Update tvOS platform libs for Xcode 14
• [K/N] Update watchOS platform libs for Xcode 14
• [K/N] update iOS platform libs for Xcode 14
• [K/N] Move ptrauth.h from CoreFoundation to a more proper namespace
• [K/N]Split CoreFoundationBase and CFCGTypes from CoreFoundation
• [K/N] Use TargetDomainObjectContainer ^KT-53776
• AA: populate index for built-ins
• AA: look up built-ins module for deserialized declarations from built-ins
• AA: use fully decompiled file when indexing built-ins
• LL FIR: cache built-ins module to session
• LL FIR: remove unnecessary type cast
• S/LC: avoid building light classes for decompiled built-ins
• LL FIR: module kind for built-ins module
• AA: add tests for resolution to built-ins
• AA: do not create symbol pointers for (intersection|substitution) overridden members

…and 229 more.

This is a technical release. It doesn't contain any fixes that aren't included in Kotlin 1.7.21. Version 1.7.22 of the Kotlin plugin will not be available for downloading or installing in any IDEs.

Checksums

File	Sha256
kotlin-compiler-1.7.22.zip	9db4b467743c1aea8a21c08e1c286bc2aeb93f14c7ba2037dbd8f48adc357d83
kotlin-native-linux-x86_64-1.7.22.tar.gz	dd004d520056aba67f2955a3bec5af75f8f2d78b179d4b5f733a77e3eef57aff
kotlin-native-macos-x86_64-1.7.22.tar.gz	153fa411fa8c993ce2635e2504e9b102cb05362cc794b66ef9def26a78b427b5
kotlin-native-macos-aarch64-1.7.22.tar.gz	4ffcd76c77cc824eff8addd5e2a73da4f3bbd3584fa9ef282b3f669c45426b1e
kotlin-native-windows-x86_64-1.7.22.zip	3bccd23479848ec61c56ed5760010456d17acbe88a00a1f10fb38eae256f2e92

This project publishes no release notes. Between v1.7.21 and v1.7.22 there were 4 commits, 4 of them substantive:

• Change bootstrap to 1.7.21-release-254
• Scripts for building Kotlin repository
• Instructions for building 1.7.20 release
• Instruction for building 1.7.21 release

Changelog

Compiler

• KT-54463 Delegating to a field with a platform type causes java.lang.NoSuchFieldError: value$delegate
• KT-54509 Ir Interpreter: unable to evaluate string concatenation with "this" as argument
• KT-54004 Builder type inference does not work correctly with variable assignment and breaks run-time
• KT-54393 Change in behavior from 1.7.10 to 1.7.20 for java field override.
• KT-54615 JVM: Internal error in file lowering: java.lang.AssertionError: Error occurred while optimizing an expression
• KT-54581 JVM: "VerifyError: Bad type on operand stack" with generic inline function and when inside try-catch block
• KT-53146 JVM IR: unnecessary checkcast of null leads to NoClassDefFoundError if the type isn't available at runtime
• KT-54600 NPE on passing nullable Kotlin lambda as Java's generic SAM interface with super type bound
• KT-54707 "VerifyError: Bad type on operand stack" in inline call chain on a nullable array value
• KT-54650 Binary incompatible ABI change in Kotlin 1.7.20
• KT-54802 "VerifyError: Bad type on operand stack" for inline functions on arrays

Native. Runtime. Memory

• KT-54498 Deprecation message of 'FreezingIsDeprecated' is not really helpful

Tools. Gradle. Multiplatform

• KT-54387 Remove MPP alpha stability warning
• KT-48436 False positive "The Kotlin source set androidAndroidTestRelease was configured but not added to any Kotlin compilation"

Tools. JPS

• KT-45474 False positive NO_ELSE_IN_WHEN on sealed class with incremental compilation

Checksums

File	Sha256
kotlin-compiler-1.7.21.zip	8412b31b808755f0c0d336dbb8c8443fa239bf32ddb3cdb81b305b25f0ad279e
kotlin-native-linux-x86_64-1.7.21.tar.gz	0f9eb04a5ee0665a195c1f1093c778f5696216660feb638b29f923f586093dd0
kotlin-native-macos-x86_64-1.7.21.tar.gz	9530cadcf05cfd6111ef35725115009283b1a0292427261b78d43853c35ccd44
kotlin-native-macos-aarch64-1.7.21.tar.gz	f75e1a68e193b0cd9df56f15166fb4e721641b408065531b620cf204d78922e5
kotlin-native-windows-x86_64-1.7.21.zip	5e76301f6c386ea83dc668e171887244908c18da636f7237d5371b56d8fec8da

This project publishes no release notes. Between v1.7.20 and v1.7.21 there were 34 commits, 33 of them substantive:

• [Gradle][MPP] Remove Kotlin Multiplatform stability warning
• [K/JS] Add flag for disabling signature uniqueness checks at klib generating phase ^KT-54520 Fixed
• Change class loader in ir interpreter that is used to create proxy obj
• Revert "Revert "Fix false-positive on checking unused sourcesets in MPP+Android project""
• Fix optimization of property delegates of platform types
• Properly verify args in string concatenation expression for interpreter
• Use correct toString method in IrCompileTimeChecker for analysis
• JVM: consider casts of null to be redundant
• [IC] Fixed IC when one file contains multiple expect-actual classes
• [IC] Add tests for sealed classes (KT-45474)
• [IC] Fixed IC for when expressions involving sealed interfaces
• Add details about compilation rounds in IC tests
• Disable expect-actual tests for fir
• fixup! Fix tests
• [IC] Do not report recompilation of non-existing files
• [K/N] Fix KT-54498
• Psi2ir: keep nullability when substituting function type for SAM type
• PSI/FIR->IR translators: return to 1.7.10 behavior for field references
• Atomicfu JVM IR: fixed visibility modifiers of generated declarations, should be private.
• FE: add reproducer for KT-54004

…and 13 more.

1.7.20

Analysis API

• KT-52667 FIR IDE: fun interfaces (SAM interfaces) are not properly resolved
• KT-52136 FIR: Implicit type declaration from the other module cannot be used for overloading

Analysis API. FE1.0

• KT-51962 Analysis API: Finish Analysis API for FE1.0

Analysis API. FIR

• KT-52779 FIR IDE: Import Optimizer cannot handle generic type qualifiers
• KT-50236 Fix OOB modification trackers for non-Kotlin code
• KT-51240 Analysis API: KtAnalysisSession for a specific module cannot create a symbol for PSI that cannot be seen from that module.
• KT-50868 Analysis API: decompiled type aliases are not resolved

Compiler

• KT-53739 Builder inference, extension hides members
• KT-53733 Kotlin/Native: update source documentation for the new default memory manager
• KT-53667 Compiler crashes on attempt to alloc a string on the stack in new MM
• KT-53480 Internal error in file lowering: java.lang.ClassNotFoundException: com.android.systemui.R$string
• KT-52843 Compose: NPE at Parameters.getParameterByDeclarationSlot if inline function with default arguments takes a lambda which captures value class represented by Long
• KT-53475 Kotlin/Native for iOS: "IllegalArgumentException: Sequence has more than one element"

New Features

• KT-52495 Support until operator in back-ends
• KT-52420 Implement resolve of until operator
• KT-52419 Implement until operator in the parser
• KT-33755 Kotlin/Native: Provide a way to customize a bundle Identifier of a generated framework
• KT-51665 FIR: implement label resolve for "typed this" case
• KT-52361 Report warning on potentially empty intersection types

Performance Improvements

• KT-47816 Disable script discovery for non-script environments
• KT-48635 JVM IR: Double/Float values are boxed when comparing for equality in equals method of data/value classes
• KT-23397 Optimize out field for property delegate when it's safe (JVM)

Fixes

• KT-53272 Backend Internal error: Exception during IR lowering / No such value argument slot: 2
• KT-53124 Receiver type mismatch when combining extension properties, type projections, Java sources, and F-bounded type-variables
• KT-51868 JVM / IR: Inconsistent behaviour between lambda expression and SAM interface conversion for the same interface
• KT-36770 Prohibit unsafe calls with expected @NotNull T and given Kotlin generic parameter with nullable bound
• KT-52974 "IllegalStateException: Symbol with IrSimpleFunctionSymbolImpl is unbound" compiling native targets of MPP project
• KT-53007 JVM: "Bad invokespecial instruction: current class isn't assignable to reference class" when call superclass of outer class method from inner class
• KT-53019 K2: cannot cast callable reference to Function1 in runtime
• KT-53031 K2 compiler crashes with IllegalStateException: No type in ProtoBuf.ValueParameter
• KT-29168 Prohibit upper bounds violation with generic typealias using not all type parameters as arguments for underlying type in supertypes
• KT-52432 Using the IDE compiled with K2 (useFir) throws VerifyError exception
• KT-52327 False negative: TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM isn't reported
• KT-49682 Support JVM IR in KAPT stub generation
• KT-24643 Prohibit using a type parameter declared for an extension property inside delegate
• KT-51972 FIR, Gradle: "Symbol is invisible" compilation error with enabled Kotlin Lombok compiler plugin
• KT-52011 [FIR] All-open compiler plugin isn't supported
• KT-51950 JVM IR: "IndexOutOfBoundsException: Cannot pop operand off an empty stack" with crossinline lambdas and interface delegation
• KT-52540 Native: kotlin.NotImplementedError with Arrow library
• KT-48031 "IllegalStateException: Type variable TypeVariable(T) should not be fixed!"
• KT-47708 RequiresOptIn check does not flag experimental method usage in SAM lambda expressions
• KT-52913 JVM / IR: "IllegalArgumentException: Inline class types should have the same representation" when trying to down cast cast a value class
• KT-50771 IR partial linkage: Removed abstract callable members are not supported
• KT-52994 Enable generic inline classes as experimental feature
• KT-52742 CYCLE_IN_ANNOTATION_PARAMETER_ERROR false positive on annotations with default values
• KT-52743 Non-null generic functions throws NPE when assigned to val
• KT-52745 Frontend / K2: "IncompatibleClassChangeError: class A$B overrides final method A.length()I" caused by delegation in a sealed class
• KT-52832 Tree-generator's method FirExpression::isFirType returns true and false for different field names; it should always be true
• KT-52403 IncompatibleClassChangeError when inlining suspend funs
• KT-50107 Missed USAGE_IS_NOT_INLINABLE diagnostic: Leaking inline lambda parameter through extension receiver
• KT-47965 Missed USAGE_IS_NOT_INLINABLE diagnostic on inline lambda parameter usage as receiver of .let call
• KT-25787 No error on crossinline usage of receiver parameter of functional type in an inline function
• KT-52762 Frontend / K2: Named arguments for Java classes lead to "Cannot find a parameter with this name"
• KT-52680 K2: overload resolution ambiguity if this is casted in a different method
• KT-52676 K2: Unsupported compile-time value IrGetFieldImpl instead of IrConst in AnnotationCodegen for constant from Java
• KT-50293 False positive: USELESS_CAST on stub types
• KT-52175 WRONG_ANNOTATION_TARGET for annotation that used inside if
• KT-52338 "IncompatibleClassChangeError: Expected non-static field" with Kotlin class with same-named companion object property as base Java class field
• KT-49507 JVM: "IllegalAccessError: class X tried to access private field" with same-named Kotlin property and Java base class field
• KT-44512 FIR DFA: incorrect smartcast after null assignment inside a lambda
• KT-49200 FIR/FE 1.0: different behavior with multiple matching star imports
• KT-52718 declaringClass deprecation message mentions the wrong replacement in 1.7
• KT-52190 FIR2IR: Unexpected IrErrorTypeImpl type for put method inside buildMap
• KT-52197 Incorrect inference of var type inside lambda that passed to extension function with type parameters that defined inside this lambda
• KT-52057 Unsupported compile-time value STRING_CONCATENATION and GET_FIELD in annotation arguments
• KT-47823 JVM IR: "IllegalArgumentException: Inline class types should have the same representation" with break usage in the loop range
• KT-51883 Kotlin 1.6.20 generates "-" in type names around lambdas and inline extension function with reified type which breaks Apache Beam
• KT-52684 Syntax error regression on complicated combination of LT and GTEQ
• KT-52417 Reflection: Can't reflect on type parameters captured by SAM converted lambda
• KT-46797 JVM IR: suspendImpl has no generic signature, breaking reified types in anonymous object supertypes when using the type token pattern
• KT-51464 FIR: Unable to infer type in coroutines flow code
• KT-52163 JVM IR: Double.compareTo(Int) compiled to integer comparison
• KT-41980 FIR: erroneous scope during annotation resolve
• KT-47159 KtPsiUtils.areParenthesesUseless() is returning a false positive on expressions for interface delegation
• KT-51418 Substitute anonymous type's supertypes
• KT-35544 kotlin.TypeCastException has no message on Native
• KT-52386 StackOverflowError during Kotlin/Native gradle build
• KT-52592 NPE from KProperty.getExtensionDelegate on property delegated to another property
• KT-52551 Delegating to object property reference does not invoke object's initializer
• KT-51704 Contracts: "AssertionError: Arguments and parameters size mismatch" with companion object
• KT-25527 False positive UNUSED_VALUE for delegated property/variable
• KT-51002 [FIR] Hidden declaration hides visible one
• KT-51008 [FIR] Star import does not work for nested calssifiers of java class
• KT-52407 FIR: Star import has lower priority than built-in import
• KT-52431 Reported error instead of warning due to empty intersection type found
• KT-49394 Bad message and suggestion: The feature "unit conversion" is disabled
• KT-51168 FIR: Inference error with Java interop and captured types
• KT-49961 "AssertionError: Left expression was not processed: BINARY_EXPRESSION" when analyzing dangling [bracketed] expression inside elvis
• KT-50108 Difference in fun interface conversion behavior for uninitialized not-null function values
• KT-51889 Calls to super-classes constructors with context receivers fail on runtime
• KT-51228 [FIR] Unresolved reference on callable reference on implicit this with smartcast
• KT-52364 False positive for INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION
• KT-52237 JVM / IR: "IllegalArgumentException: No argument for parameter VALUE_PARAMETER CONTINUATION_CLASS" when implementing Map interface on class with suspending functions
• KT-50832 Method references to suspend inline functions are processed incorrectly
• KT-52194 False positive "Class 'my.packge.MyClass' is compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" but builds fine
• KT-47203 JVM Debugger: Parameter value doesn't change for tailrec function
• KT-52131 False positive variable unused warning when calling inline function in finally block
• KT-51738 Debugger: stepping over in inline function with multiple inline lambda invocations is incorrect
• KT-52198 Losing reference to the value of an outer variable (Ref$ObjectRef) when using suspend inline with suspendCancellableCoroutine
• KT-50994 FIR: AssertionError during inference of delegated properties with implicit types
• KT-51757 FIR does not see various JS/Native specific declarations in common modules
• KT-51201 FIR: ARGUMENT_TYPE_MISMATCH diagnostic contains generic parameter instead of the actual type
• KT-48444 FIR: type argument rejected for annotation
• KT-51754 JVM: Local variable table invalid for do-while with continue
• KT-51936 Breakpoint not hit on last line of suspend function on Android
• KT-27333 Forbid @Synchronized annotation on suspend functions
• KT-51530 "StackOverflowError: CoroutineTransformerMethodVisitor.spillVariables" with data class in Flow
• KT-51460 FIR: Protected property inaccessible from inner class
• KT-53947 IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER
• KT-51234 Context receivers can be duplicated in function declaration
• KT-51576 Context receivers: "AssertionError: Callers must check that current token is IDENTIFIER followed with '@'" with at character
• KT-49479 JVM / IR: "IllegalStateException: IrErrorType" during IR lowering with non-trivial recursion calls
• KT-52270 NullPointerException caused by braces on if-else returning a method reference inside lambda
• KT-47621 False negative INVISIBLE_MEMBER on call to inaccessible protected synthetic property setter
• KT-37796 NI: "ISE: Error type encountered" when inferring type of a property that delegates to itself
• KT-45430 PSI2IR: "org.jetbrains.kotlin.psi2ir.generators.ErrorExpressionException: null: KtCallExpression: toString()" with recursive function call in "also" block in nontrivial context
• KT-52691 K2: Expected FirResolvedTypeRef with ConeKotlinType but was FirImplicitTypeRefImpl with intertwined functional interfaces
• KT-52822 Fix contract for KtElement.getReference()
• KT-50223 IndexOutOfBoundsException from ClassicTypeSystemContext$DefaultImpls.getParameter during call resolution
• KT-51963 Change Maven version to 1.7.255
• KT-47664 Incorrect type checking in the case of generic types
• KT-48765 NI: Inferred type does not respect the bound of type variable
• KT-51243 False positive error "No required context receiver" inside contextual lambda
• KT-43541 TYPE_MISMATCH for member function which is not occur for top level function during unsafe cast
• KT-51016 [FIR] False positive OVERLOAD_RESOLUTION_AMBIGUITY between two extensions on different supertypes
• KT-50155 FIR: support contextual receivers
• KT-38637 Catch NoSuchFieldException in optimized when expression over enum

Docs & Examples

• KT-49896 Kotlin/JS: improve -Xir-property-lazy-initialization description due to making it true by default

IDE

• KTIJ-22286 Kotlin JPS project created via wizard does not contain Kotlin libraries in case of not-released version
• KTIJ-22065 IDE notification motivating Kotlin users to use EAP
• KTIJ-22209 Configure Kotlin on 221 idea adds 1.6.10 Kotlin (despite the fact that IDE plugin is 1.7.10)
• KTIJ-22171 Fix test BuiltInDecompilerConsistencyTest
• KTIJ-22016 Empty .kt file and build.gradle.kts can trigger an error while searching for a facade light class
• KT-52571 MPP Tasks on import are not up-to-date after subsequent launches
• KT-47777 ISE thrown from KtLightClassForFacadeImpl.Companion.createForFacadeNoCache has wrong message.

IDE. FIR

• KT-52360 FIR IDE: Make the fix of isInheritor method better
• KT-51786 FIR IDE: IllegalStateException exception in Inspections' infrastructure
• KT-52331 Analysis API: ArrayIndexOutOfBoundsException exception in Diagnostics' infrastructure

IDE. Code Style, Formatting

• KTIJ-21346 Incorrect formatting for functions with context receivers and visibility modifiers

IDE. Completion

• KTIJ-21910 FIR IDE: Fix completion tests started failing after visibility checker refinement

IDE. Decompiler, Indexing, Stubs

• KTIJ-21243 ContextReceivers: "UpToDateStubIndexMismatch: PSI and index do not match" plugin exception on library with context receivers usage attempt

IDE. Gradle Integration

• KT-47627 IDE import fails with com.intellij.util.lang.PathClassLoader error for runCommonizer Gradle task on 212, 213 IDEAs
• KTIJ-21638 MPP: IntelliJ can not resolve MPP references in common-code
• KT-52216 HMPP / KTOR: False positive "TYPE_MISMATCH" with Throwable descendant

IDE. Inspections and Intentions

• KTIJ-22540 Invalid "remove unnecessary parentheses" when delegating a functional interface to a SAM in brackets

IDE. J2K

• KTIJ-21665 J2K generates non compiling code when lifting return and one branch is broken before binary operator

IDE. JS

• KTIJ-22337 Wizard: Kotlin/Js for browser: cssSupport DSL should be updated

IDE. K2

• KTIJ-21672 FIR IDE: Method reference on generic class breaks resolve
• KTIJ-21714 FIR IDE: Inherently imported type from another module is not properly resolved

IDE. Script

• KT-52525 Update scripts handling in source roots

IDE. Misc

• KTIJ-21699 Refactoring: move out parts of the plugin useful for both FE10 and K2

JavaScript

New Features

• KT-39423 KJS: Optionally generate a method to handle optional parameters for function in typescript
• KT-42282 KJS IR: add an ability to run separate tests

Performance Improvements

• KT-50270 KJS IR: Unnecessary getter and setter calls when accessing class members

Fixes

• KT-51133 Kotlin/JS - IR: even simple lambdas generate a lot of useless boilerplate
• KT-51123 Provide a way to add comments to generated JS
• KT-48493 KJS / IR: Invalid d.ts for inner classes inside objects
• KT-52553 KJS / IR: diamond hierarchy with super.toString produces stack overflow in runtime
• KT-23252 JS: Unit materialization on declaration and assignment
• KT-51128 Kotlin/JS - IR generate huge count of useless blocks
• KT-50778 KJS/IR: Inline class has no field when building production distribution
• KT-50157 KSJ IR: Applying identity equality operator to Chars always returns false
• KT-38262 Javascript generation (and Typescript) fails on 'then', 'catch' and 'finally' (and others?) claiming they are reserved names
• KT-51066 KJS / IR: suspend lambda parameter of value class is undefined
• KT-51102 KJS/IR: Assertion failed at translateCallArguments(jsAstUtils.kt:343)
• KT-51878 KJS / Legacy: Unit is not materialized in an overridden method, but it should be

Language Design

• KT-47986 Implicit inferring a type variable into an upper bound in the builder inference context
• KT-49264 Deprecate infix function calls of functions named "suspend" with dangling function literal
• KT-25636 Native: Object is frozen by default problem
• KT-49303 Implement support for basic compile-time evaluation

Libraries

• KT-52932 Open-ended ranges in the standard library
• KT-52910 Provide visit extension functions for java.nio.file.Path
• KT-48232 Multiplatform function for computing cubic root
• KT-52778 The documentation for the Duration does not indicate any differences from the ISO-8601
• KT-52618 ThreadLocalRandom is not a good source of randomness on Android before SDK 34, so don't use it for Kotlin Random

Native

• KT-53346 MPP project with kotlinx-serialization-json:1.4.0-RC is not built

Native. C Export

• KT-45468 Kotlin/Native: Bitcode verification error when trying to export a cached klib to a static or dynamic library

Native. C and ObjC Import

• KT-53373 Native: @ExportObjCClass doesn't work with the new memory manager
• KT-49034 Kotlin/Native: cnames.structs.Foo resolves into wrong declaration
• KT-26478 Objective-C object's class name is null in ClassCastException's message

Native. ObjC Export

• KT-51593 Include more information in Objective-C header documentation
• KT-33117 Improve customizing Info.plist in produced frameworks
• KT-52681 Native: @end; for Objective-C is generated with an unnecessary semicolon

Native. Platforms

• KT-52226 Kotlin/Native: Add support for cross-compilation of MIPS targets from macOS and Windows hosts

Native. Runtime

• KT-52430 KMM 1.6.21 framework built with Xcode13, new MM GC Can't support iOS 9.x
• KT-53534 Kotlin/Native: -Xruntime-logs=gc=info flag doesn't work with compiler caches in 1.7.20-beta

Native. Runtime. Memory

• KT-52692 Kotlin/Native: fix tests with aggressive GC
• KT-52130 Kotlin/Native: use Xallocator for Kotlin objects only
• KT-51436 Kotlin/Native: optimize mark queue

Reflection

• KT-51804 An error occurs when callBy a KFunction that contains a value class as an argument, has a default argument set, and has more than 32 arguments.

Tools. CLI

• KT-52465 CLI: IllegalStateException IrSimpleFunctionPublicSymbolImpl when source root is duplicated
• KT-52380 Invalid path to compiler plugins should be reported as a compiler error
• KT-51025 JVM CLI compiler takes class file from classpath instead of input java source file
• KT-51846 Setting random value to the compiler argument where number is expected should produce an error. "-Xbackend-threads=abcd"

Tools. Compiler Plugins

• KT-52486 [K2] Looking for function/constructor whose parameters are annotated or meta annotated
• KT-52872 Mark supportsK2 in ComponentRegistrar.kt as JvmDefault to avoid compatibility problems
• KT-52804 A function obtained by Fir IrBuiltins has an incorrect package
• KT-52468 Rename module and jar for lombok compiler plugin

Tools. Gradle

• KT-53670 Gradle: Cyclic dependency between kotlin-gradle-plugin-idea-1.7.20-Beta and kotlin-gradle-plugin-idea-proto-1.7.20-Beta
• KT-53615 Gradle: Fix deprecation warnings in CleanableStoreImpl
• KT-53118 Fully up-to-date builds are slower with Kotlin 1.7.0
• KT-51923 Improve usability of errors and warnings by being able to click on them
• KT-53244 Report from gradle about compiler plugins
• KT-52839 Warn in Gradle log why incremental compilation failed
• KT-46019 Compatibility with Gradle 7.1 release
• KT-47047 Migrate Kotlin Gradle Plugin from using Gradle conventions
• KT-52698 Don't add InspectClassesForMultiModuleIC task when new incremental compilation is enabled
• KT-52867 Provide simplified JVM toolchain configuration method
• KT-45747 Add basic JUnit 5 Kotlin Gradle Plugin Android tests setup
• KT-46034 Shadow Kotlin Gradle plugin dependencies
• KT-28664 Support ExtensionContainer on kotlin targets and source sets.
• KT-19472 Useful extensions of Gradle Kotlin DSL provided by Gradle Kotlin plugin
• KT-34393 Kotlin Gradle DSL: Inconsistent srcDir configuration between Java and Kotlin
• KT-51629 There isn't enough info about incremental compilation state in logs while running build with --info key

Tools. Gradle. Cocoapods

• KT-53174 CocoaPods: Synthetic Podfile does not specify platform
• KT-53127 "MaterialComponents normal armv7" in Cocoapods plugin between Kotlin 1.6.21 and 1.7.0
• KT-44155 Cocoapods doesn't support pods without module map file inside
• KT-49032 Cocoapods cinterop: some header files are not found
• KT-53337 Add warning about future changing default linking type of framework provided via cocoapods plugin

Tools. Gradle. JS

• KT-52637 KJS / Gradle: Add SCSS webpack config
• KT-51527 Kotlin/JS: BrowserXRun causes full-screen Webpack error "Compiled with problems: asset size limit/entrypoint size limit" for fresh Kotlin-React project from wizard
• KT-51532 Kotlin/JS: passing environment variable via Gradle script causes "Execution optimizations have been disabled" warnings
• KT-52221 Kotlin/JS: failed Node tests are not reported in a standard way

Tools. Gradle. Multiplatform

• KT-52243 CInteropProcess is not cacheable despite the annotation
• KT-52741 MPP: klib outputs are not reproducible
• KT-52208 MPP: Gradle plugin 1.7 doesn't support latest api versions (1.8, 1.9)
• KT-54071 MPP/AGP compatibility: Bump maxSupportedVersion to 7.3.0

Tools. Gradle. Native

• KT-52632 Gradle / Native: commonizeNativeDistributionTask can never be up-to-date
• KT-52328 "ld: framework not found SQLCipher" linkDebugTestIosSimulatorArm64 error

Tools. Incremental Compile

• KT-53168 Incremental compilation doesn't perform correctly after a few iterations
• KT-52925 [IR BE] Non incremental build occurs after build failure for compileKotlinJs task
• KT-52946 CompileKotlinJs task is executed non-incrementally if there were changes made to the dependant module
• KT-52329 Reduce memory usage of classpath snapshot cache
• KT-53266 Increment Compilation: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing companion object constant field
• KT-53231 New IC reports build failures for missing classpath snapshots

Tools. JPS

• KT-47824 'when expression must be exhaustive' isn't thrown during incremental compilation
• KT-51873 JPS build is incorrect after gdw build
• KTIJ-17072 JPS does not rebuild Kotlin usages of declared in Java when enum entry is added
• KT-51537 Rebuild module on plugin classpaths change

Tools. REPL

• KT-45065 REPL: Incorrect output for unsigned value
• KT-53043 Scripting: Changes in REPL protocol: mark end of errors

Tools. Scripts

• KT-52598 Scripts and REPL snippets are not checked against using 'kotlin' package
• KT-47187 Kotlin ScriptEngine Failes to Compile a Trivial Statement After Failing to Compile a Broken One
• KT-47191 [Kotlin Script Engine] Compiling Without Evaluating Leaves Engine in a Bad State

Tools. Kapt

• KT-52761 Kotlin 1.7.0 breaks kapt processing for protobuf generated java sources

Checksums

File	Sha256
kotlin-compiler-1.7.20.zip	5e3c8d0f965410ff12e90d6f8dc5df2fc09fd595a684d514616851ce7e94ae7d
kotlin-native-linux-x86_64-1.7.20.tar.gz	65ac0a71fbff016d4387956768a49b668e6cda316e96adb116de5cf1169f5627
kotlin-native-macos-x86_64-1.7.20.tar.gz	449d68b055ea5b45106d1cbc925bc43d7e1a9ab9d6b1cdd16722fa569b8fd8b1
kotlin-native-macos-aarch64-1.7.20.tar.gz	221aa20718cf81897ba682479da838e44f221424f3a867f7871fff231b50a799
kotlin-native-windows-x86_64-1.7.20.zip	b84bea3f8c62ec2f614e7d282335c5df891a654a843d30a9a55ebe29c68ea044

This project publishes no release notes. Between v1.7.20-RC and v1.7.20 there were 6 commits, 6 of them substantive:

• K1. Fix error message for BUILDER_INFERENCE_MULTI_LAMBDA_RESTRICTION
• Fix lowering of receiver access in IR scripting
• [Gradle][MPP] MPP/AGP compatibility: Bump maxSupportedVersion to 7.3
• Native: improve thread state switches for NSSet/NSDictionary adapters
• Native: add more tests for Swift Set and Dictionary used in Kotlin
• Add changelog for 1.7.20

Changelog

Compiler

• KT-53739 Builder inference, extension hides members
• KT-53733 Kotlin/Native: update source documentation for the new default memory manager
• KT-53667 Compiler crashes on attempt to alloc a string on the stack in new MM
• KT-53480 Internal error in file lowering: java.lang.ClassNotFoundException: com.android.systemui.R$string
• KT-52843 Compose: NPE at Parameters.getParameterByDeclarationSlot if inline function with default arguments takes a lambda which captures value class represented by Long
• KT-51868 JVM / IR: Inconsistent behaviour between lambda expression and SAM interface conversion for the same interface
• KT-53475 Kotlin/Native for iOS: "IllegalArgumentException: Sequence has more than one element"

Libraries

• KT-52910 Provide visit extension functions for java.nio.file.Path
• KT-52909 Implement a walk extension function for java.nio.file.Path

Native

• KT-53346 MPP project with kotlinx-serialization-json:1.4.0-RC is not built

Native. C and ObjC Import

• KT-53373 Native: @ExportObjCClass doesn't work with the new memory manager

Native. Runtime

• KT-53534 Kotlin/Native: -Xruntime-logs=gc=info flag doesn't work with compiler caches in 1.7.20-beta

Tools. Gradle

• KT-53670 Gradle: Cyclic dependency between kotlin-gradle-plugin-idea-1.7.20-Beta and kotlin-gradle-plugin-idea-proto-1.7.20-Beta
• KT-53615 Gradle: Fix deprecation warnings in CleanableStoreImpl
• KT-53118 Fully up-to-date builds are slower with Kotlin 1.7.0

Tools. Gradle. Cocoapods

• KT-53337 Add warning about future changing default linking type of framework provided via cocoapods plugin

Tools. Incremental Compile

• KT-53266 Increment Compilation: "IllegalStateException: The following LookupSymbols are not yet converted to ProgramSymbols" when changing companion object constant field
• KT-53231 New IC reports build failures for missing classpath snapshots

Tools. Kapt

• KT-52761 Kotlin 1.7.0 breaks kapt processing for protobuf generated java sources

Checksums

File	Sha256
kotlin-compiler-1.7.20-RC.zip	da9a362df57da5d6bfa99cad0513489837891afb70efd365abd0a572efd26772
kotlin-native-linux-x86_64-1.7.20-RC.tar.gz	1d0a2b5b6f580688a92141cd87adf102104ee7a945eab7e0b17185bd2d985485
kotlin-native-macos-x86_64-1.7.20-RC.tar.gz	4c107f1256e8078b5132d22ae5421c80b52653a66ce8689e627da9a9e1eab2b7
kotlin-native-macos-aarch64-1.7.20-RC.tar.gz	4d1b68fb205d2e41a9f2fc80a584b1c045805983971d3dc0d5a6522fe73cba35
kotlin-native-windows-x86_64-1.7.20-RC.zip	280586dc3491616923e7dd19edce1636e77be00cde084bdea9a1d7090d30f7aa

This project publishes no release notes. Between v1.7.20-Beta and v1.7.20-RC there were 55 commits, 55 of them substantive:

• [Plugins] Mark Lombok and SamWithReceiver as compatible with K2
• Fix Kapt generate stubs doesn't know about java sources from main task
• [KT-53337] Cocoapods: warn if cocoapods plugin uses default framework linking type.
• [KT-53392] Cocoapods: add deprecation for the direct pod urls.
• Native: fix @ExportObjCClass with the new memory manager
• Shrink snapshots non-incrementally after fallback
• Revise incremental compilation failure handling tests
• Add ability to debug Kotlin daemon in integration tests
• Add integration test for the case where incremental state is missing
• Always compile non-incrementally if incremental state is missing
• [K/N][codegen] Fixed improper linkage for private function
• [K/N] Fix for instantiating annotations from already lowered file
• JVM IR: disable SAM conversion in case type has 'in' projection
• JVM: do not assume presence of default method handle arguments (#4915)
• [K/N] Disable compiler caches in case of -Xruntime-logs= flag
• Temporarily disable testng docs linking
• Optimize ir interpretation of Enum.name
• Enable JS/JVM IR transformation by atomicfu-compiler-plugin according to the flag set in the project.
• Add extension with compiler plugin application config
• Review fixes

…and 35 more.

Changelog

Analysis API

• KT-52667 FIR IDE: fun interfaces (SAM interfaces) are not properly resolved
• KT-52136 FIR: Implicit type declaration from the other module cannot be used for overloading

Analysis API. FE1.0

• KT-51962 Analysis API: Finish Analysis API for FE1.0

Analysis API. FIR

• KT-52779 FIR IDE: Import Optimizer cannot handle generic type qualifiers
• KT-50236 Fix OOB modification trackers for non-Kotlin code
• KT-51240 Analysis API: KtAnalysisSession for a specific module cannot create a symbol for PSI that cannot be seen from that module.
• KT-50868 Analysis API: decompiled type aliases are not resolved

Compiler

New Features

• KT-33755 Kotlin/Native: Provide a way to customize a bundle Identifier of a generated framework
• KT-51665 FIR: implement label resolve for "typed this" case
• KT-52361 Report warning on potentially empty intersection types

Performance Improvements

• KT-47816 Disable script discovery for non-script environments
• KT-48635 JVM IR: Double/Float values are boxed when comparing for equality in equals method of data/value classes
• KT-23397 Optimize out field for property delegate when it's safe (JVM)

Fixes

• KT-53272 Backend Internal error: Exception during IR lowering / No such value argument slot: 2
• KT-53124 Receiver type mismatch when combining extension properties, type projections, Java sources, and F-bounded type-variables
• KT-51868 JVM / IR: Inconsistent behaviour between lambda expression and SAM interface conversion for the same interface
• KT-36770 Prohibit unsafe calls with expected @NotNull T and given Kotlin generic parameter with nullable bound
• KT-52974 "IllegalStateException: Symbol with IrSimpleFunctionSymbolImpl is unbound" compiling native targets of MPP project
• KT-53007 JVM: "Bad invokespecial instruction: current class isn't assignable to reference class" when call superclass of outer class method from inner class
• KT-53019 K2: cannot cast callable reference to Function1 in runtime
• KT-53031 K2 compiler crashes with IllegalStateException: No type in ProtoBuf.ValueParameter
• KT-29168 Prohibit upper bounds violation with generic typealias using not all type parameters as arguments for underlying type in supertypes
• KT-52432 Using the IDE compiled with K2 (useFir) throws VerifyError exception
• KT-52327 False negative: TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM isn't reported
• KT-49682 Support JVM IR in KAPT stub generation
• KT-24643 Prohibit using a type parameter declared for an extension property inside delegate
• KT-51972 FIR, Gradle: "Symbol is invisible" compilation error with enabled Kotlin Lombok compiler plugin
• KT-52011 [FIR] All-open compiler plugin isn't supported
• KT-51950 JVM IR: "IndexOutOfBoundsException: Cannot pop operand off an empty stack" with crossinline lambdas and interface delegation
• KT-52540 Native: kotlin.NotImplementedError with Arrow library
• KT-48031 "IllegalStateException: Type variable TypeVariable(T) should not be fixed!"
• KT-47708 RequiresOptIn check does not flag experimental method usage in SAM lambda expressions
• KT-52913 JVM / IR: "IllegalArgumentException: Inline class types should have the same representation" when trying to down cast cast a value class
• KT-50771 IR partial linkage: Removed abstract callable members are not supported
• KT-52994 Enable generic inline classes as experimental feature
• KT-52742 CYCLE_IN_ANNOTATION_PARAMETER_ERROR false positive on annotations with default values
• KT-52743 Non-null generic functions throws NPE when assigned to val
• KT-52745 Frontend / K2: "IncompatibleClassChangeError: class A$B overrides final method A.length()I" caused by delegation in a sealed class
• KT-52832 Tree-generator's method FirExpression::isFirType returns true and false for different field names; it should always be true
• KT-52403 IncompatibleClassChangeError when inlining suspend funs
• KT-50107 Missed USAGE_IS_NOT_INLINABLE diagnostic: Leaking inline lambda parameter through extension receiver
• KT-47965 Missed USAGE_IS_NOT_INLINABLE diagnostic on inline lambda parameter usage as receiver of .let call
• KT-25787 No error on crossinline usage of receiver parameter of functional type in an inline function
• KT-52762 Frontend / K2: Named arguments for Java classes lead to "Cannot find a parameter with this name"
• KT-52680 K2: overload resolution ambiguity if this is casted in a different method
• KT-52676 K2: Unsupported compile-time value IrGetFieldImpl instead of IrConst in AnnotationCodegen for constant from Java
• KT-50293 False positive: USELESS_CAST on stub types
• KT-52175 WRONG_ANNOTATION_TARGET for annotation that used inside if
• KT-52338 "IncompatibleClassChangeError: Expected non-static field" with Kotlin class with same-named companion object property as base Java class field
• KT-49507 JVM: "IllegalAccessError: class X tried to access private field" with same-named Kotlin property and Java base class field
• KT-44512 FIR DFA: incorrect smartcast after null assignment inside a lambda
• KT-49200 FIR/FE 1.0: different behavior with multiple matching star imports
• KT-52718 declaringClass deprecation message mentions the wrong replacement in 1.7
• KT-52190 FIR2IR: Unexpected IrErrorTypeImpl type for put method inside buildMap
• KT-52197 Incorrect inference of var type inside lambda that passed to extension function with type parameters that defined inside this lambda
• KT-52057 Unsupported compile-time value STRING_CONCATENATION and GET_FIELD in annotation arguments
• KT-47823 JVM IR: "IllegalArgumentException: Inline class types should have the same representation" with break usage in the loop range
• KT-51883 Kotlin 1.6.20 generates "-" in type names around lambdas and inline extension function with reified type which breaks Apache Beam
• KT-52684 Syntax error regression on complicated combination of LT and GTEQ
• KT-52417 Reflection: Can't reflect on type parameters captured by SAM converted lambda
• KT-46797 JVM IR: suspendImpl has no generic signature, breaking reified types in anonymous object supertypes when using the type token pattern
• KT-51464 FIR: Unable to infer type in coroutines flow code
• KT-52163 JVM IR: Double.compareTo(Int) compiled to integer comparison
• KT-41980 FIR: erroneous scope during annotation resolve
• KT-47159 KtPsiUtils.areParenthesesUseless() is returning a false positive on expressions for interface delegation
• KT-51418 Substitute anonymous type's supertypes
• KT-35544 kotlin.TypeCastException has no message on Native
• KT-52386 StackOverflowError during Kotlin/Native gradle build
• KT-52592 NPE from KProperty.getExtensionDelegate on property delegated to another property
• KT-52551 Delegating to object property reference does not invoke object's initializer
• KT-51704 Contracts: "AssertionError: Arguments and parameters size mismatch" with companion object
• KT-25527 False positive UNUSED_VALUE for delegated property/variable
• KT-51002 [FIR] Hidden declaration hides visible one
• KT-51008 [FIR] Star import does not work for nested calssifiers of java class
• KT-52407 FIR: Star import has lower priority than built-in import
• KT-52431 Reported error instead of warning due to empty intersection type found
• KT-49394 Bad message and suggestion: The feature "unit conversion" is disabled
• KT-51168 FIR: Inference error with Java interop and captured types
• KT-49961 "AssertionError: Left expression was not processed: BINARY_EXPRESSION" when analyzing dangling [bracketed] expression inside elvis
• KT-50108 Difference in fun interface conversion behavior for uninitialized not-null function values
• KT-51889 Calls to super-classes constructors with context receivers fail on runtime
• KT-51228 [FIR] Unresolved reference on callable reference on implicit this with smartcast
• KT-52364 False positive for INFERRED_TYPE_VARIABLE_INTO_EMPTY_INTERSECTION
• KT-52237 JVM / IR: "IllegalArgumentException: No argument for parameter VALUE_PARAMETER CONTINUATION_CLASS" when implementing Map interface on class with suspending functions
• KT-50832 Method references to suspend inline functions are processed incorrectly
• KT-52194 False positive "Class 'my.packge.MyClass' is compiled by a pre-release version of Kotlin and cannot be loaded by this version of the compiler" but builds fine
• KT-47203 JVM Debugger: Parameter value doesn't change for tailrec function
• KT-52131 False positive variable unused warning when calling inline function in finally block
• KT-51738 Debugger: stepping over in inline function with multiple inline lambda invocations is incorrect
• KT-52198 Losing reference to the value of an outer variable (Ref$ObjectRef) when using suspend inline with suspendCancellableCoroutine
• KT-50994 FIR: AssertionError during inference of delegated properties with implicit types
• KT-51757 FIR does not see various JS/Native specific declarations in common modules
• KT-51201 FIR: ARGUMENT_TYPE_MISMATCH diagnostic contains generic parameter instead of the actual type
• KT-48444 FIR: type argument rejected for annotation
• KT-51754 JVM: Local variable table invalid for do-while with continue
• KT-51936 Breakpoint not hit on last line of suspend function on Android
• KT-27333 Forbid @Synchronized annotation on suspend functions
• KT-51530 "StackOverflowError: CoroutineTransformerMethodVisitor.spillVariables" with data class in Flow
• KT-51460 FIR: Protected property inaccessible from inner class

IDE

• KT-52571 MPP Tasks on import are not up-to-date after subsequent launches
• KT-47777 ISE thrown from KtLightClassForFacadeImpl.Companion.createForFacadeNoCache has wrong message.

IDE. FIR

• KT-52360 FIR IDE: Make the fix of isInheritor method better
• KT-51786 FIR IDE: IllegalStateException exception in Inspections' infrastructure
• KT-52331 Analysis API: ArrayIndexOutOfBoundsException exception in Diagnostics' infrastructure

IDE. Gradle Integration

• KT-47627 IDE import fails with com.intellij.util.lang.PathClassLoader error for runCommonizer Gradle task on 212, 213 IDEAs

IDE. Script

• KT-52525 Update scripts handling in source roots

JavaScript

New Features

• KT-39423 KJS: Optionally generate a method to handle optional parameters for function in typescript
• KT-42282 KJS IR: add an ability to run separate tests

Performance Improvements

• KT-50270 KJS IR: Unnecessary getter and setter calls when accessing class members

Fixes

• KT-51133 Kotlin/JS - IR: even simple lambdas generate a lot of useless boilerplate
• KT-51123 Provide a way to add comments to generated JS
• KT-48493 KJS / IR: Invalid d.ts for inner classes inside objects
• KT-52553 KJS / IR: diamond hierarchy with super.toString produces stack overflow in runtime
• KT-23252 JS: Unit materialization on declaration and assignment
• KT-51128 Kotlin/JS - IR generate huge count of useless blocks
• KT-50778 KJS/IR: Inline class has no field when building production distribution
• KT-50157 KSJ IR: Applying identity equality operator to Chars always returns false
• KT-38262 Javascript generation (and Typescript) fails on 'then', 'catch' and 'finally' (and others?) claiming they are reserved names
• KT-51066 KJS / IR: suspend lambda parameter of value class is undefined
• KT-51102 KJS/IR: Assertion failed at translateCallArguments(jsAstUtils.kt:343)
• KT-51878 KJS / Legacy: Unit is not materialized in an overridden method, but it should be

Language Design

• KT-47986 Implicit inferring a type variable into an upper bound in the builder inference context
• KT-49264 Deprecate infix function calls of functions named "suspend" with dangling function literal

Libraries

• KT-52932 Open-ended ranges in the standard library
• KT-52909 Implement a walk extension function for java.nio.file.Path
• KT-52910 Provide visit extension functions for java.nio.file.Path
• KT-48232 Multiplatform function for computing cubic root
• KT-52778 The documentation for the Duration does not indicate any differences from the ISO-8601
• KT-52618 ThreadLocalRandom is not a good source of randomness on Android before SDK 34, so don't use it for Kotlin Random

Native

• KT-51297 Native: allow calling Kotlin suspend functions on non-main thread from Swift
• KT-48558 Windres broken in new MinGW toolchain
• KT-50983 Linker fails on Windows if add .res file with VERSIONINFO
• KT-52150 harmony_LICENSE.txt contains invalid utf8 characters

Native. C Export

• KT-45468 Kotlin/Native: Bitcode verification error when trying to export a cached klib to a static or dynamic library

Native. C and ObjC Import

• KT-49034 Kotlin/Native: cnames.structs.Foo resolves into wrong declaration
• KT-26478 Objective-C object's class name is null in ClassCastException's message

Native. ObjC Export

• KT-51593 Include more information in Objective-C header documentation
• KT-33117 Improve customizing Info.plist in produced frameworks
• KT-52681 Native: @end; for Objective-C is generated with an unnecessary semicolon

Native. Platforms

• KT-52226 Kotlin/Native: Add support for cross-compilation of MIPS targets from macOS and Windows hosts

Native. Runtime

• KT-52430 KMM 1.6.21 framework built with Xcode13, new MM GC Can't support iOS 9.x

Native. Runtime. Memory

• KT-52692 Kotlin/Native: fix tests with aggressive GC
• KT-52130 Kotlin/Native: use Xallocator for Kotlin objects only
• KT-51436 Kotlin/Native: optimize mark queue

Reflection

• KT-51804 An error occurs when callBy a KFunction that contains a value class as an argument, has a default argument set, and has more than 32 arguments.

Tools. CLI

• KT-52465 CLI: IllegalStateException IrSimpleFunctionPublicSymbolImpl when source root is duplicated
• KT-52380 Invalid path to compiler plugins should be reported as a compiler error
• KT-51025 JVM CLI compiler takes class file from classpath instead of input java source file
• KT-51846 Setting random value to the compiler argument where number is expected should produce an error. "-Xbackend-threads=abcd"

Tools. Compiler Plugins

• KT-52486 [K2] Looking for function/constructor whose parameters are annotated or meta annotated
• KT-52872 Mark supportsK2 in ComponentRegistrar.kt as JvmDefault to avoid compatibility problems
• KT-52804 A function obtained by Fir IrBuiltins has an incorrect package
• KT-52468 Rename module and jar for lombok compiler plugin

Tools. Gradle

• KT-51923 Improve usability of errors and warnings by being able to click on them
• KT-53244 Report from gradle about compiler plugins
• KT-52839 Warn in Gradle log why incremental compilation failed
• KT-46019 Compatibility with Gradle 7.1 release
• KT-47047 Migrate Kotlin Gradle Plugin from using Gradle conventions
• KT-52698 Don't add InspectClassesForMultiModuleIC task when new incremental compilation is enabled
• KT-52867 Provide simplified JVM toolchain configuration method
• KT-45747 Add basic JUnit 5 Kotlin Gradle Plugin Android tests setup

Tools. Gradle. Cocoapods

• KT-53174 CocoaPods: Synthetic Podfile does not specify platform
• KT-53127 "MaterialComponents normal armv7" in Cocoapods plugin between Kotlin 1.6.21 and 1.7.0
• KT-44155 Cocoapods doesn't support pods without module map file inside
• KT-49032 Cocoapods cinterop: some header files are not found

Tools. Gradle. JS

• KT-52637 KJS / Gradle: Add SCSS webpack config
• KT-51527 Kotlin/JS: BrowserXRun causes full-screen Webpack error "Compiled with problems: asset size limit/entrypoint size limit" for fresh Kotlin-React project from wizard
• KT-51532 Kotlin/JS: passing environment variable via Gradle script causes "Execution optimizations have been disabled" warnings

Tools. Gradle. Multiplatform

• KT-52243 CInteropProcess is not cacheable despite the annotation
• KT-52741 MPP: klib outputs are not reproducible
• KT-52208 MPP: Gradle plugin 1.7 doesn't support latest api versions (1.8, 1.9)

Tools. Gradle. Native

• KT-52632 Gradle / Native: commonizeNativeDistributionTask can never be up-to-date
• KT-52328 "ld: framework not found SQLCipher" linkDebugTestIosSimulatorArm64 error

Tools. Incremental Compile

• KT-53168 Incremental compilation doesn't perform correctly after a few iterations
• KT-52925 [IR BE] Non incremental build occurs after build failure for compileKotlinJs task
• KT-52946 CompileKotlinJs task is executed non-incrementally if there were changes made to the dependant module
• KT-52329 Reduce memory usage of classpath snapshot cache

Tools. JPS

• KT-47824 'when expression must be exhaustive' isn't thrown during incremental compilation
• KT-51873 JPS build is incorrect after gdw build

Tools. REPL

• KT-45065 REPL: Incorrect output for unsigned value

Tools. Scripts

• KT-52598 Scripts and REPL snippets are not checked against using 'kotlin' package
• KT-47187 Kotlin ScriptEngine Failes to Compile a Trivial Statement After Failing to Compile a Broken One
• KT-47191 [Kotlin Script Engine] Compiling Without Evaluating Leaves Engine in a Bad State

Checksums

File	Sha256
kotlin-compiler-1.7.20-Beta.zip	53428b151e365b3359518bd78d000368e89d9909c43800f4b32340a8cdd6e730
kotlin-native-linux-x86_64-1.7.20-Beta.tar.gz	24be8e2b25a35ff286578b56870b4f11e3f7b0b5dd61e4e43c91a68c32b5bad6
kotlin-native-macos-x86_64-1.7.20-Beta.tar.gz	c2045250a495ed194ad080038f7f25fff7b9a81efc3f7446a877170b6d394313
kotlin-native-macos-aarch64-1.7.20-Beta.tar.gz	03413b92201842ae933e2f72345bb90d955baff26c6d1d0a470c8a5cb27a071c
kotlin-native-windows-x86_64-1.7.20-Beta.zip	ccb573100660b35fae0dab217f74cd30c03929af353772f80d7ab94e940120c6

Changelog

Compiler

• KT-52702 Invalid locals information when compiling kotlinx.collections.immutable with Kotlin 1.7.0-RC2
• KT-52892 Disappeared specific builder inference resolution ambiguity errors
• KT-52782 Appeared receiver type mismatch error due to ProperTypeInferenceConstraintsProcessing compiler feature
• KT-52718 declaringClass deprecation message mentions the wrong replacement in 1.7

IDE. Configuration

• KTIJ-21982 Cannot run/build anything with Kotlin plugin since last update

Tools. Gradle

• KT-52777 'org.jetbrains.kotlinx:atomicfu:1.7.0' Gradle 7.0+ plugin variant was published with missing classes

Tools. Gradle. JS

• KT-52856 Kotlin/JS: Upgrade NPM dependencies

Tools. Gradle. Multiplatform

• KT-52955 SourceSetMetadataStorageForIde: Broken 'cleanupStaleEntries' with enabled configuration caching or isolated ClassLoaders
• KT-52694 Kotlin 1.7.0 breaks Configuration Caching in Android projects

Tools. Incremental Compile

• KT-52669 Full rebuild in IC exception recovery leaves corrupt IC data

Checksums

File	Sha256
kotlin-compiler-1.7.10.zip	7683f5451ef308eb773a686ee7779a76a95ed8b143c69ac247937619d7ca3a09
kotlin-native-linux-x86_64-1.7.10.tar.gz	b874373e87381b94c6a385178ea9594a5b4cfeb2fbae2bd89d3cb84c96bc3b96
kotlin-native-macos-x86_64-1.7.10.tar.gz	4e9470c25e0c6b3b79e86a59c7eca4d79c5a28ca515e80db93504535b2332a00
kotlin-native-macos-aarch64-1.7.10.tar.gz	c02be577f541a5c73e1af75534006eea6e09cf67b3a886f323dae6f0406bcb3e
kotlin-native-windows-x86_64-1.7.10.zip	52c64c754a23da3d554d89beb9cdc322ffcb19b8d6f1e812e849e597d282b99d

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-26245 Add ability to specify generic type parameters as not-null
• KT-45165 Remove JVM target version 1.6
• KT-27435 Allow implementation by delegation to inlined value of inline class
• KT-47939 Support method references to functional interface constructors
• KT-50775 Support IR partial linkage in Kotlin/Native (disabled by default)
• KT-51737 Kotlin/Native: Remove unnecessary safepoints on watchosArm32 and iosArm32 targets
• KT-44249 NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER with type usage in higher order function

Performance Improvements

• KT-48233 Switching to JVM IR backend increases compilation time by more than 15%
• 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-46762 Finalize support for jspecify
• KT-51499 @file:OptIn doesn't cover override methods
• KT-52037 FIR: add error in 1.7.0 branch if run with non-compatible plugins
• KT-46756 Release the K2/JVM compiler in Alpha
• KT-49715 IR: "IllegalStateException: Function has no body: FUN name:toString" during IR lowering with shadowed extension inside interface
• KT-45508 False negative ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED on a fake override with an abstract super class member
• KT-28078 Report error "Public property exposes its private type" for primary constructor properties instead of warning
• KT-49017 Forbid usages of super or super<Some> if in fact it accesses an abstract member
• KT-38078 Prohibit calling methods from Any with "super" qualifier once they are overridden as abstract in superclass
• KT-52363 Evaluate impact of qualified this behavior change warnings
• KT-52561 JVM: Coroutine state machine loses value after a check-induced smart cast
• KT-52311 java.lang.VerifyError: Bad type on operand stack
• KT-41124 Inconsistency of exceptions at init block for an enum entry with and without a qualifier name
• KT-46860 Make safe calls always nullable
• KT-52503 New green code appeared at the callable reference resolution
• KT-51925 Native: "IllegalStateException: Symbol for kotlinx.cinterop/CStructVar|null[0] is unbound" caused by inline function
• 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-51844 New errors in overload resolution involving vararg extension methods
• KT-52006 "java.lang.Throwable: Unbalanced tree Exception" on indexing kotlin project
• KT-51223 Report warning about conflicting inherited members from deserialized dependencies
• KT-51439 FE 1.0: implement type variance conflict deprecation on qualifier type arguments
• KT-51433 FE 1.0: implement warnings about label resolve changes
• KT-51317 Regression in resolution of lambdas where expected type has an extension receiver parameter
• KT-45935 JVM IR: Add not-null assertion for explicit definitely not-null parameters
• KT-51818 "ClassCastException: class CoroutineSingletons cannot be cast to class" with suspendCoroutineUninterceptedOrReturn and coroutines
• KT-51718 JVM / IR: "VerifyError: Bad type on operand stack" caused by nullable variable inside suspend function
• 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-52394 JVM: Missing annotation on method with value class return type when a subclass is present in the same file in Kotlin 1.7.0-Beta
• KT-51640 FIR: remove warning about "far from being production ready"
• KT-45553 FIR: support hiding declaration from star import by as import
• KT-52404 Prolong deprecation cycle for errors at contravariant usages of star projected argument from Java
• KT-50734 TYPE_MISMATCH: NonNull parameter with a type of Nullable type argument causes compiler warning
• 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-48935 NI: Multiple generic parameter type constraints are not applied as expected when the parameter is of function type
• KT-49661 NI: No TYPE_INFERENCE_UPPER_BOUND_VIOLATED when argument is inferred by return type
• KT-50877 Inconsistent flexible type
• KT-51988 "NPE: getContainingDeclaration…lDeclarationType.REGULAR) must not be null" when using @BuilderInference with multiple type arguments
• KT-48890 Revert Opt-In restriction "Overriding methods can only have opt-in annotations that are present on their basic declarations."
• KT-52035 FIR: add error in 1.7.0 branch if run on JS / Native configuration
• KT-45461 NI: False negative TYPE_INFERENCE_UPPER_BOUND_VIOLATED when passing an argument to a function with generic constraints
• KT-52146 JVM IR: "AssertionError: Primitive array expected" on vararg of SAM types with self-type and star projection
• 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-50845 Postpone rxjava errors reporting in the strict mode till 1.8 due to found broken cases
• KT-51979 "AssertionError: No modifier list, but modifier has been found by the analyzer" exception on incorrect Java interface override
• KT-51759 FIR DFA: false positive "Variable must be initialized"
• 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-33517 Kotlin ScriptEngine does not respect async code when using bindings
• KT-51850 FIR cannot resolve ambiguity with different SinceKotlin/DeprecatedSinceKotlin
• 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-51758 FIR: explicit API mode errors should not be reported for effectively internal / private entities
• KT-51203 FIR: Inconsistent RETURN_TYPE_MISMATCH and TYPE_MISMATCH reporting on functions and properties
• 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-46187 FIR: OVERLOAD_RESOLUTION_AMBIGUITY on SAM-converted callable reference to List::plus
• KT-51761 Incorrect NONE_APPLICABLE in expect class
• KT-51756 FIR: false positive NO_VALUE_FOR_PARAMETER in expect class delegated constructor call
• KT-49778 Support cast to DefinitelyNotNull type in Native
• KT-51441 -Xpartial-linkage option specified in Gradle build script is not passed to Native linker
• 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-51364 FIR: ambiguity due to String constructors clash
• 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-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-51274 "Expected some types" exception on when branch for when expression of erroneous type
• 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-51200 False EXPOSED_PARAMETER_TYPE for internal type parameter of internal type
• 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-50136 FIR: syntax error on (T & Any)
• KT-49465 FIR2IR: support definitely not-null types
• KT-51357 FIR: error in inference while using integer literal in expected Long position
• 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-51171 FIR: class Error resolution problem
• 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-48623 Type nullability enhancement improvements
• 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-50788 FIR: false unsafe call on not-null generic
• KT-50785 FIR: inconsistent smart cast after comparison with true
• KT-50858 [FIR LL] FIR in low level mode creates multiple symbols for same declaration
• KT-50822 Analysis API: make declaration transformers machinery to be a thread safe
• KT-50972 FIR doesn't report VAL_REASSIGNMENT on synthetic properties
• KT-50969 FIR: diamond inheritance with different parameter types depends on a supertype order
• KT-50875 FIR: no smart cast after reassignment with elvis
• 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-50776 FIR: ambiguity between Sequence.forEach and Iterable.forEach
• 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-50774 FIR2IR: NSEE in case of lambda in enum entry constructor call
• KT-49016 Drop QUALIFIED_SUPERTYPE_EXTENDED_BY_OTHER_SUPERTYPE diagnostic
• 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)

Docs & Examples

• KT-52032 Document performance optimizations of the Kotlin/JVM compiler in 1.7.0
• KT-49424 Update KEEP for OptIn

IDE

Fixes

• KTIJ-21735 Exception when opening a project
• KTIJ-17414 UAST: Synthetic enum methods have null return values
• KTIJ-17444 UAST: Synthetic enum methods are missing nullness annotations
• KTIJ-19043 UElement#comments is empty for a Kotlin property with a getter
• KTIJ-10031 IDE fails to suggest a project declaration import if the name clashes with internal declaration with implicit import from stdlib (ex. @Serializable)
• KTIJ-21515 Load JVM target 1.6 as 1.8 in Maven projects
• KTIJ-21151 Exception about wrong read access from "Java overriding methods searcher" with Kotlin overrides
• KTIJ-20736 NoClassDefFoundError: Could not initialize class org.jetbrains.kotlin.idea.roots.KotlinNonJvmOrderEnumerationHandler. Kotlin plugin 1.7 fails to start
• KT-50111 Resolving into KtUltraLightMethod
• KTIJ-21063 IDE highlighting: False positive error "Context receivers should be enabled explicitly"
• KTIJ-20810 NoClassDefFoundError: org/jetbrains/kotlin/idea/util/SafeAnalyzeKt errors in 1.7.0-master-212 kotlin plugin on project open
• KTIJ-19088 KotlinUFunctionCallExpression.resolve() returns null for calls to @JvmSynthetic functions
• KTIJ-17869 KotlinUFunctionCallExpression.resolve() returns null for instantiations of local classes with default constructors
• KTIJ-21061 UObjectLiteralExpression.getExpressionType() returns the base class type for Kotlin object literals instead of the anonymous class type
• KTIJ-20200 UAST: @Deprecated(level=HIDDEN) constructors are not returning UMethod.isConstructor=true
• KTIJ-19624 NoDescriptorForDeclarationException on iosTest.kt.vm

IDE. Code Style, Formatting

• KTIJ-20554 Introduce some code style for definitely non-null types

IDE. Completion

• KTIJ-14740 Multiplatform declaration actualised in an intermediate source set is shown twice in a completion popup called in the source set

IDE. Debugger

• KTIJ-20815 MPP Debugger: Evaluation of expect function for the project with intermediate source set may fail with java.lang.NoSuchMethodError

IDE. Decompiler, Indexing, Stubs

• KTIJ-21472 "java.lang.IllegalStateException: Could not read file" exception on indexing invalid class file
• KTIJ-20802 Definitely Not-Null types: "UpToDateStubIndexMismatch: PSI and index do not match" plugin error when trying to use library function with T&Any
• KT-51248 Function and parameter names with special symbols have to backticked

IDE. FIR

• KTIJ-20443 FIR IDE: Work in Dumb mode
• KTIJ-21374 FIR IDE: Incorrect highlighting for operators
• KTIJ-21013 FIR IDE: Inconsistent smartcasts highlighting
• KTIJ-21343 FIR IDE: Navigation from explicit invoke call does not work
• KTIJ-20852 FIR IDE: Exception when checking isInheritor on two classes in different modules
• KTIJ-21021 FIR IDE: Completion of extension function does not work on nullable receiver
• KTIJ-20637 FIR IDE: Strange exception while commenting-uncommenting FirReferenceResolveHelper.kt
• KTIJ-20971 FIR IDE: "Parameter Info" shows parameters of uncallable methods

IDE. Gradle Integration

• KTIJ-21807 Gradle to IDEA import: language and API version settings are not imported for Native facet
• KTIJ-21692 Kotlin Import Test maintenance: 1.7.0-Beta
• KTIJ-20567 Kotlin/JS: Gradle import into IDEA creates no proper sub-modules, source sets, facets

IDE. Hints. Inlay

• KTIJ-20552 Support definitely non-null types in inlay hints

IDE. Inspections and Intentions

New Features

• KTIJ-18979 Quickfix for INTEGER_OPERATOR_RESOLVE_WILL_CHANGE to add explicit conversion call
• KTIJ-19950 Provide quickfixes for INVALID_IF_AS_EXPRESSION_WARNING and NO_ELSE_IN_WHEN_WARNING
• KTIJ-19866 Create quick-fix for effective visibility error on private-in-file interface exposing private class
• KTIJ-19939 Provide quickfix for deprecated confusing expressions in when branches

Fixes

• KTIJ-20705 Register quickfix for NO_CONSTRUCTOR_WARNING diagnostic
• KTIJ-21226 "Remove else branch" quick fix is not suggested
• KTIJ-20981 Definitely non-null types: quick-fixes suggested incorrectly for LV=1.6 when Xenhance-type-parameter-types-to-def-not-null flag is set
• KTIJ-20953 Add quickfix for OVERRIDE_DEPRECATION warning to 1.7 - 1.9 migration
• KTIJ-20734 Replace with [@JvmInline] value quick fix should be appliable on a whole project
• KTIJ-21420 Add 'else' branch quick fix suggestion is displayed twice in case 'if' isn't completed
• KTIJ-21192 "Make protected" intention is redundant for interface properties
• KTIJ-18120 "Make public" intention does not add explicit "public" modifier when using ExplicitApi Strict mode
• KTIJ-20493 "Create expect" quick fix doesn't warn about platform-specific annotations

IDE. Misc

• KTIJ-21582 Notification for Kotlin EAP survey

IDE. Multiplatform

• KT-49523 Improve environment setup experience for KMM projects
• KT-50952 MPP: Commonized cinterops doesn't attach/detach to source set on configuration changes

IDE. Native

• KT-44329 Improve UX of using Native libraries in Kotlin
• KTIJ-21602 With Native Debugging Support plugin Gradle run configurations can't be executed from IDEA: LLDB_NATVIS_RENDERERS_ENABLED

IDE. Wizards

• KTIJ-20919 Update ktor-html-builder dependency in kotlin wizards
• KTIJ-20962 Wizard: Invalid Ktor imports

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-44319 JS IR BE: Add an ability to generate separate JS files for each module
• 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()
• KT-52010 K/JS IR: both flows execute when using elvis operator
• KT-41096 KJS IR: @JsExport should use original js name for external declarations
• KT-52144 KJS / IR: Missing property definitions for interfaced defined properties
• KT-52252 KJS / IR: overridden properties are undefined/null
• KT-51973 KJS / IR overridden properties of inherited interface missing
• KT-51125 Provide a way to use import keyword in js expressions
• KT-40888 KJS / IR: Missing methods are no longer generated (polyfills)
• KT-50504 KJS / IR: Transpiled JS incorrectly uses the unscrambled names of internal fields
• 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-51841 KJS / IR: No flat hash for FUN FAKE_OVERRIDE with kotlin.incremental.js.ir=true
• 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-51238 Kotlin/JS: IR + IC: build fails after clean on compileTestDevelopmentExecutableKotlinJs task: "Failed to create MD5 hash for file '.../build/classes/kotlin/main' as it does not exist"
• KT-50674 KJS / IR: JS code cannot modify local variable
• 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

New Features

• KT-45618 Stabilize builder inference
• KT-30485 Underscore operator for type arguments
• 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-14663 Support having a "public" and a "private" type for the same property
• KT-50477 Functional conversion does not work on suspending functions
• KT-32162 Allow generics for inline classes

Fixes

• KT-12380 Support sealed (exhaustive) whens
• KT-27750 Reverse reservation of 'yield' as keyword
• KT-22956 Release OptIn annotations
• 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-42436 Support java.nio.Path extension in the standard library
• 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-51848 Promote deepRecursiveFunction to stable API
• 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. Build Infrastructure

• KT-52259 kotlin-native releases from GitHub don't contain platform libs

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. 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

Native. Runtime. Memory

• KT-48537 Kotlin/Native: improve GC triggers in the new MM.
• 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-52409 Report error when use-k2 with Multiplatform
• KT-51717 IllegalArgumentException: Unexpected versionNeededToExtract (0) in 1.6.20-RC2 with useFir enabled
• KT-52217 Rename 'useFir' to 'useK2'
• KT-29974 Add a compiler option '-Xjdk-release' similar to javac's '--release' to control the target JDK version
• 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
• KT-51093 "-Xopt-in=..." command line argument no longer works

Tools. Commonizer

• KT-43309 Overwrite return type and parameter types of callable member to succeed commonization
• 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. Compiler Plugins

• KT-50992 jvm-abi-gen breaks inline functions in inline classes with private constructors in Kotlin 1.6.20

Tools. Daemon

• KT-32885 KT. Kotlin daemon compilation process is broken: java.lang.IllegalStateException Service is dying at entities generation by Kotlin.kts script

Tools. Gradle

New Features

• KT-49227 Support Gradle plugins variants
• KT-50869 Provide API that allow AGP to set up Kotlin compilation
• KT-48008 Consider offering a KotlinBasePlugin
• KT-52030 Provide experimental possibility to view internal information about Kotlin Compiler performance

Performance Improvements

• 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-51326 Kotlin-gradle-plugin performance issue with mass java SourceRoots

Fixes

• KT-52448 Compilation tasks are missing input/output/internal annotations on includes/excludes properties
• KT-52239 Type based task configuration-blocks for JVM stopped working in Gradle
• KT-52313 No recompilation in Gradle after adding or removing function parameters, removing functions (and maybe more) in dependent modules
• KT-51854 Add Ktor to gradle performance benchmark
• KT-52086 Rename flag 'use-fir' to 'use-k2'
• 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
• KT-32805 KotlinCompile inherits properties sourceCompatibility and targetCompatibility which breaks Gradle's incremental compilation
• KT-52189 Provide Gradle Kotlin/DSL friendly deprecated classpath property in KotlinCompiler task
• KT-51415 Confusing build failure reason is displayed in case kapt is used and different JDKs are used for compileKotlin and compileJava tasks
• 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-34862 Restoring from build cache breaks Kotlin incremental compilation
• KT-45777 New IC in Gradle
• 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-47924 Remove annoying cast in toolchain extension method for Kotlin DSL
• KT-46541 Fail Gradle builds when deprecated kotlinOptions.jdkHome is set
• 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-51454 KotlinJvmTest is not a cacheable task
• 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-48779 Gradle: Could not connect to kotlin daemon

Tools. Gradle. Cocoapods

• KT-50622 Cocoapods Plugin: cocoapods-generate does not work correctly with ruby 3.0.0 and higher
• KT-51861 Custom binary name in CocoaPods plugin isn't respected by fatFramework task

Tools. Gradle. JS

• KT-52221 Kotlin/JS: failed Node tests are not reported in a standard way
• KT-51895 K/JS: Redundant technical messages during JS tests
• 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

New Features

• KT-51386 [KPM] IdeaKotlinProjectModelBuilder: Implement dependencies

Fixes

• KT-49524 Improve DSL for managing Kotlin/Native binary output
• KT-51765 com.android.lint in multiplatform project without android target should not trigger warning
• KT-38456 MPP with Android source set: allTests task does not execute Android unit tests
• KT-44227 Common tests are not launched on local JVM for Android via allTests task in a multiplatform project
• KT-51946 Temporarily mark HMPP tasks as notCompatibleWithConfigurationCache for Gradle 7.4
• KT-52140 Support extensibility Kotlin Artifacts DSL by external gradle plugins
• KT-51947 Mark HMPP tasks as notCompatibleWithConfigurationCache for Gradle 7.4 using Reflection
• KT-50925 Could not resolve all files for configuration ':metadataCompileClasspath'
• 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-47746 Allow customization of the Kotlin/Native compiler download url
• 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-49780 IncrementalCompilerRunner bug: Outputs are deleted after successful rebuild following fallback from an exception
• KT-44741 Incremental compilation: inspectClassesForKotlinIC doesn't determine changes with imported constant

Tools. JPS

• KTIJ-17280 JPS: don't use java.io.File.createTempFile as it is not working sometimes
• KTIJ-20954 NPE at at org.jetbrains.kotlin.metadata.jvm.deserialization.JvmProtoBufUtil.readNameResolver on compiling by JPS with LV > 1.7

Tools. Kapt

• KT-49533 Make kapt work out of the box with latest JDKs
• KT-52284 FIR: add error in 1.7.0 branch if run with Kapt
• KT-51463 KAPT: Incremental compilation not working when rerunning unit tests
• 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-49173 Add support for nullable types in provided properties and other configuration-defined declarations
• KT-52294 [Scripting] Update oudated org.eclipse.aether dependencies to new org.apache.maven.resolver
• 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
• 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

File	Sha256
kotlin-compiler-1.7.0.zip	f5216644ad81571e5db62ec2322fe07468927bda40f51147ed626a2884b55f9a
kotlin-native-linux-x86_64-1.7.0.tar.gz	0a70da9bbd9405233f68d7a5863d098cb372f60171e5620f023b6fb9b9e99a9c
kotlin-native-macos-x86_64-1.7.0.tar.gz	b39a85a6e59e91eecb09f51290dc9704e816752275f9cb3a83b994d68b14fc9f
kotlin-native-macos-aarch64-1.7.0.tar.gz	5f1f4c1fb4090c27db3caf5f03953566855bb8ba08272cbb40414c9420fd257c
kotlin-native-windows-x86_64-1.7.0.zip	2736b340adc708fe21083d441a86f96bb77fbbbe3f7c41a29fb1e10dd488bb26

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

File	Sha256
kotlin-compiler-1.7.0-RC2.zip	264b86c9d91d15a6eba0b720d759861adaab886ce37ae2dc8081af634eefba71
kotlin-native-linux-x86_64-1.7.0-RC2.tar.gz	650812727f1ce1c585d109e9435872ffa89316714ecde472cdf0927d5efc4a1c
kotlin-native-macos-x86_64-1.7.0-RC2.tar.gz	c4bfc7332ccd2ea952a201f489d1ff57fa0b2ae93dccac5a2459c545e5655cf3
kotlin-native-macos-aarch64-1.7.0-RC2.tar.gz	753e0ea090bc190eb63f6caf4bacf69817253aaa0d2f4eb6e7e79267a3041cb6
kotlin-native-windows-x86_64-1.7.0-RC2.zip	58c824f3e0fdbd358584b87745d918518513ab83b5e0c67ca072f5402477946e

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

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

File	Sha256
kotlin-compiler-1.7.0-Beta.zip	eb066c03009801f973fb4629bc2ff2dd7a95cbd2283c6472179f0f9026e2f091
kotlin-native-linux-x86_64-1.7.0-Beta.tar.gz	6f89015e1dfbc7b535e540a22a004ef3e6e4f04349e4a894ed45e703c3b3116f
kotlin-native-macos-x86_64-1.7.0-Beta.tar.gz	a5ba0ce86ebd3cc625456c7180b3d890bc2808ef9f14f8d56dd6ab3bb103a4ef
kotlin-native-macos-aarch64-1.7.0-Beta.tar.gz	c971cdf36eb733e249170458c567ad7c38fe0a801f6a784b2de54e3eda49c329
kotlin-native-windows-x86_64-1.7.0-Beta.zip	dec9c2019e73b887851794040c7809074578aca41341b15a929433183d01eb8d

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

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.