v0.19.0

Compare Source

• Update Kotlin to 1.8.0.
• Update LV to 1.8 (#​270).
• Prepare atomicfu for including to the Kotlin Aggregate build (#​265).

v1.8.0

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>)
• 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 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 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: (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
• 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 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](https://youtrack.jetbrains.com/issue/KT-52303

v1.7.20: 1.7.20 Beta

This release focuses primarily on improving user experience and HTML format in particular.

Improvements

General

• Display inherited extensions (can be disabled by setting suppressInheritedMembers configuration property) (#​2625)
• Display details for @Deprecated declarations such as deprecation message, level and proposed replacement (#​2622)
• Display and document Enum's synthetic values() and valueOf() functions (#​2650)
• Do not render constructors for annotation classes (#​2642)
• Display values of Java constants (#​2609)
• Trim spaces inside indented code blocks (#​2661, #​2232, #​2233)
• Replace package name on the cover of package pages with "Package-level declarations" (#​2586)

HTML format

• Add IntelliJ icons to the navigation side menu (#​2578)
• Add auto-scrolling to selected navigation item (#​2575)
• Use OS color scheme to initialize light/dark mode, thanks to @​pt2121! (#​2611)
• Update styling of all section tabs (including platform tabs) to match kotlinlang.org (#​2589)
• Format long signatures dynamically based on client width (#​2659)
• Add a horizontal divider between function overloads that are displayed on the same page (#​2585)
• Add Cmd + K / Ctrl + K hotkey for opening search dialog, thanks to @​atyrin! (#​2633)
• Make current breadcrumb element not clickable and of default font color (#​2588)
• Update code highlighting colors (#​2670)
• Do not render platform tabs for common-only content (#​2613)
• Apply the same style to all KDoc tag headers, making it more consistent (#​2587)
• Move source links into signature, especially helpful on pages with many overloads (#​2476)
• Add inner/nested declarations to the navigation side menu (#​2597)
• Disable copy button for signatures (#​2577)

Javadoc format

• Support var HTML tag, thanks to @​atyrin (#​2617)

Kotlin-as-Java plugin

• Render annotation blocks for transformed classes, previously ignored (#​2549)

Gradle runner

• Remove kotlin-stdlib dependency, which should fix errors like Module was compiled with an incompatible version of Kotlin, thanks to @​martinbonnin! (#​2570)

Bugfixes

• Fixed missing spaces between adjacent Markdown elements, where _try_ *this* would be rendered as trythis (#​2640)
• Fixed dependency resolution errors when building documentation for multiplatform projects with enabled compatibility metadata variant (#​2634)
• Fixed a rare StackOverflowError related to type-aliased native references (#​2664)
• Fixed IllegalStateException that was caused by using JS's dynamic types (#​2645)
• Fixed a bug where certain private declarations were rendered as public (#​2639)
• Fixed incorrect handling of static declarations used within @see tag (#​2627)
• Fixed Java Enum types being rendered as Any (#​2647)
• Fixed incorrect signature generation that was caused by generic types caching (#​2619)
• Fixed incorrect parsing of static imports in Java annotation params (#​2593)
• Fixed sourceRoots configuration param not handling single .java files, thanks to @​2017398956! (#​2604)
• Fixed unresponsive HTML anchor button (#​2644)
• Fixed dokka-customFormat-example project to use up-to-date logo styles (#​2608)

Developer experience

• Enable Gradle Enterprise build scans, thanks to @​Goooler! (#​2641)
• Use GitHub Actions artifacts to store generated documentation snapshots, thanks to @​StefMa! (#​2630)

Other

• Warn users that GFM, Javadoc and Jekyll formats are in early alpha stages by printing a build log message during execution (#​2550)
• Revise developer guides documentation that should help plugin authors and new contributors (#​2523)
• Bump Gradle to 7.5.1, thanks to @​Goooler! (#​2618)
• Fix spelling errors, thanks to @​FelixDombek! (#​2594)

v2.0.0

• Release based on JDK-11. Require AGP version 7.4.0-alpha10 or later (Android Studio 2022.1.1).
• Supports three different configurations desugar_jdk_libs_minimal, desugar_jdk_libs and desugar_jdk_libs_nio.
  • desugar_jdk_libs_minimal limits desugaring to package java.util.function and class java.util.Optional.
  • desugar_jdk_libs desugars the same APIs as in version 1.1.x and 1.2.x.
  • desugar_jdk_libs_nio includes desugaring of package java.nio.