v7.5.1

This is a patch release for 7.5. We recommend using 7.5.1 instead of 7.5

Read the Release Notes

We would like to thank the following community members for their contributions to this release of Gradle: Michael Bailey, Josh Kasten, Marcono1234, mataha, Lieven Vaneeckhaute, kiwi-oss, Stefan Neuhaus, George Thomas, Anja Papatola, Björn Kautler, David Burström, Vladimir Sitnikov, Roland Weisleder, Konstantin Gribov, David Op de Beeck, aSemy, Rene Groeschke, Jonathan Leitschuh, Aurimas Liutikas, Jamie Tanna, Xin Wang, Atsuto Yamashita, Taeik Lim, Peter Gafert, Alex Landau, Jerry Wiltse, Tyler Burke, Matthew Haughton, Filip Daca, Simão Gomes Viana, Vaidotas Valuckas, Edgars Jasmans, Tomasz Godzik, Jeff, Lajos Veres

Upgrade instructions

Switch your build to use Gradle 7.5.1 by updating your wrapper:

./gradlew wrapper --gradle-version=7.5.1

See the Gradle 7.x upgrade guide to learn about deprecations, breaking changes and other considerations when upgrading.

Reporting Problems

If you find a problem with this release, please file a bug on GitHub Issues adhering to our issue guidelines. If you're not sure you're encountering a bug, please use the forum.

v0.22.0

Compare Source

• NEW: When publishing to maven central by setting SONATYPE_HOST or calling publishToMavenCentral(...) the plugin will now explicitly create a staging repository on Sonatype. This avoids issues where a single build would create multiple repositories
• The above change means that the plugin supports parallel builds and it is not neccessary anymore to use --no-parallel and --no-daemon together with publish
• NEW: When publishing with the publish or publishAllPublicationsToMavenCentralRepository tasks the plugin will automatically close the staging repository at the end of the build if it was successful.
• NEW: Option to also automatically release the staging repository after closing was susccessful

SONATYPE_HOST=DEFAULT # or S01
SONATYPE_AUTOMATIC_RELEASE=true

or

mavenPublishing {
  publishToMavenCentral("DEFAULT", true)
  // or publishToMavenCentral("S01", true)
}

• in case the option above is enabled, the closeAndReleaseRepository task is not needed anymore
• when closing the repository fails the plugin will fail the build immediately instead of timing out
• when closing the repository fails the plugin will try to print the error messages from Nexus
• increased timeouts for calls to the Sonatype Nexus APIs
• fixed incompatibility with the com.gradle.plugin-publish plugin
• added wokaround for Kotlin multiplatform builds reporting disabled build optimizations

v0.21.0

Compare Source

Minimum supported Gradle version is now 7.2.0

Minimum supported Android Gradle Plugin versions are now 7.1.2, 7.2.0-beta02 and 7.3.0-alpha01

Behavior changes

The com.vanniktech.maven.publish stops adding Maven Central (Sonatype OSS) as a publishing target and will not enable GPG signing by default. To continue publishing to maven central and signing artifacts either add the following to your gradle.properties:

SONATYPE_HOST=DEFAULT

v1.7.20

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-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"

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 |

v1.6.10

Android

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

Compiler

Performance Improvements

• KT-49821 Optimize LazyClassMemberScope#getContributedDescriptors: use nameFilter

Fixes

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

JavaScript

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

Language Design

• KT-49868 Support language version 1.3 in Kotlin 1.6.10

Libraries

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

Tools. Android Extensions

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

Tools. Compiler Plugins

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

Tools. Gradle

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

Tools. Gradle. JS

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

Tools. Gradle. Native

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

Tools. Incremental Compile

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

v1.6.0

Android

• KT-48019 Bundle Kotlin Tooling Metadata into apk artifacts
• KT-47733 JVM / IR: Android Synthetic don't generate _findCachedViewById function

Compiler

New Features

• KT-47984 In-place arguments inlining for @​InlineOnly functions
• KT-12794 Allow runtime retention repeatable annotations when compiling under Java 8
• KT-43714 Support annotations on class type parameters (AnnotationTarget.TYPE_PARAMETER)
• KT-45949 Kotlin/Native: Improve bound check elimination
• KT-43919 Support loading Java annotations on base classes and implementing interfaces' type arguments
• KT-48194 Try to resolve calls where we don't have enough type information, using the builder inference despite the presence of the annotation
• KT-47736 Support conversion from regular functional types to suspending ones in JVM IR
• KT-39055 Support property delegate created via synthetic method instead of field

Performance Improvements

• KT-45185 FIR2IR: get rid of IrBuiltIns usages
• KT-47918 JVM / IR: Performance degradation with const-bound for-cycles
• KT-33835 Bytecode including unnecessary null checks for safe calls where left-hand side is non-nullable
• KT-41510 Compilation of kotlin html DSL is still too slow
• KT-48211 We spend a lot of time in ExpectActual declaration checker when there is very small amount of actual/expect declaration
• KT-39054 Optimize delegated properties which call get/set on the given KProperty instance on JVM
• KT-46615 Don't generate nullability assertions in methods for directly invoked lambdas

Fixes

• KT-49613 JVM / IR: "Exception during IR lowering" with java fun interface and it's non-trivial usage
• KT-49548 "ClassCastException: java.util.ArrayList$Itr cannot be cast to kotlin.collections.IntIterator" with Iterable inside let
• KT-22562 Deprecate calls to "suspend" named functions with single dangling lambda argument
• KT-47120 JVM IR: NoClassDefFoundError when there are an extension and a regular function with the same name
• KT-49477 Has ran into recursion problem with two interdependant delegates
• KT-49442 ClassCastException on reporting [EXPOSED_FROM_PRIVATE_IN_FILE] Deprecation: private-in-file class should not expose 'private-in-class'
• KT-49371 JVM / IR: "NoSuchMethodError" with multiple inheritance
• KT-44843 PSI2IR: "org.jetbrains.kotlin.psi2ir.generators.ErrorExpressionException: null: KtCallExpression" with delegate who has name or parameter with the same name as a property
• KT-49294 Turning FlowCollector into 'fun interface' leads to AbstractMethodError
• KT-18282 Companion object referencing it's own method during construction compiles successfully but fails at runtime with VerifyError
• KT-25289 Prohibit access to class members in the super constructor call of its companion and nested object
• KT-32753 Prohibit @​JvmField on property in primary constructor that overrides interface property
• KT-43433 Suspend conversion is disabled message in cases where it is not supported and quickfix to update language version is suggested
• KT-49399 Building repeatable annotation with Container nested class fails with ISE: "Repeatable annotation class should have a container generated"
• KT-49209 Default upper bound for type variables should be non-null
• KT-49335 NPE in RepeatedAnnotationLowering.wrapAnnotationEntriesInContainer when using @Repeatable annotation from different file
• KT-48876 java.lang.UnsupportedOperationException: org.jetbrains.kotlin.ir.expressions.impl.IrReturnableBlockImpl@4a729df
• KT-48131 IAE "Repeatable annotation container value must be a class reference" on using Kotlin-repeatable annotation from dependency
• KT-49322 Postpone promoting warnings to errors for ProperTypeInferenceConstraintsProcessing feature
• KT-49285 Exception on nested builder inference calls
• KT-49101 IllegalArgumentException: ClassicTypeSystemContext couldn't handle: Captured(out Number)
• KT-41378 Compilation failed: Deserializer for declaration public kotlinx.coroutines/SingleThreadDispatcher|null[0] is not found
• KT-47285 IR deserialization exception when dependency KLIB has class instead of typealias
• KT-46697 IllegalStateException: IrTypeAliasSymbol expected: Unbound public symbol for public kotlinx.coroutines/CancellationException|null[0] compiling KMM module for Kotlin/Native with Kotlin 1.5
• KT-36399 Gradually support TYPE_USE nullability annotations read from class-files
• KT-11454 Load annotations on TYPE_USE/TYPE_PARAMETER positions from Java class-files
• KT-18768 @​Notnull annotation from Java does not work with varargs
• KT-24392 Nullability of Java arrays is read incorrectly if @​Nullable annotation has both targets TYPE_USE and VALUE_PARAMETER
• KT-48157 FIR: incorrect resolve with built-in names in use
• KT-46409 FIR: erroneous resolve to qualifier instead of extension
• KT-44566 FirConflictsChecker do not check for conflicting overloads across multiple files
• KT-37318 FIR: Discuss treating flexible bounded constraints in inference
• KT-45989 FIR: wrong callable reference type inferred
• KT-46058 [FIR] Remove state from some checkers
• KT-45973 FIR: wrong projection type inferred
• KT-43083 [FIR] False positive 'HIDDEN' on internal
• KT-48794 Breaking change in 1.5.30: Builder inference lambda contains inapplicable calls so {1} cant be inferred
• KT-46727 Report warning on contravariant usages of star projected argument from Java
• KT-40668 FIR: Ambiguity on qualifier when having multiple different same-named objects in near scopes
• KT-37081 [FIR] errors NO_ELSE_IN_WHEN and INCOMPATIBLE_TYPES absence
• KT-48162 NON_VARARG_SPREAD isn't reported on *toTypedArray() call
• KT-45118 ClassCastException caused by parent and child class in if-else
• KT-47605 Kotlin/Native: switch to LLD linker for MinGW targets
• KT-48912 K/N Symbol with IrSimpleFunctionSymbolImpl is unbound and JS Validation failed in file shaders.kt
• KT-44436 Support default not null annotations to enhance T into T!!
• KT-49190 Increase stub versions
• KT-48261 "overload resolution ambiguity" for JSpecify+jsr305-annotated Java List implementation
• KT-48778 -Xtype-enhancement-improvements-strict-mode not respecting @​NonNull annotation for property accesses?
• KT-48606 [1.6] Instantiated annotations do not implement hashCode correctly/consistently
• KT-49157 Tail-call optimization miss with cast to type parameter
• KT-46437 NI: "Throwable: Resolution error of this type shouldn't occur for resolve if as a call" caused by reflectively accessing private property inside "if/else" or "when" expression
• KT-48590 IllegalArgumentException: ClassicTypeSystemContext couldn't handle: Captured(*) reified type class reference
• KT-48633 Can't infer builder inference's type argument across local class
• KT-49136 JVM IR: NPE with safe call chain and property set to null by reflection
• KT-48570 OptIn marker should not spread from class to its members
• KT-48928 Prohibit using old JVM backend with language version >= 1.6
• KT-41978 NI: Kotlin fails to infer type of function argument
• KT-48101 Smart cast on base class property is impossible if base class is from another module
• KT-48732 JVM / IR: MalformedParameterizedTypeException is thrown when a Spring Bean of suspending function type is registered
• KT-47841 Turning LV to 1.6 breaks some diagnostics based on jspecify annotations
• KT-48498 JVM IR: IllegalAccessError with inline function call and property delegation from different module
• KT-48319 JVM / IR: AssertionError: FUN caused by suspend lambda inside anonymous function
• KT-48835 Psi2ir: vararg parameter value is lost when translating adapted function reference to base class member
• KT-46908 JVM / IR: do not wrap fun interface implementation into another SAM adapter if it inherits from a functional type
• KT-48927 JVM IR: "VerifyError: Bad invokespecial instruction: current class isn't assignable to reference class" when up-casting and read a base class's private property that has a custom getter in the base class's public function
• KT-48992 Postpone migration to new operator resolution scheme for integer literals
• KT-48290 Type bounds warning based on Java annotations not issues with language level 1.6
• KT-47920 There is no warning on violated nullability of type parameter in accordance with java nullability annotation
• KT-41664 Remove the "runtime JAR files in the classpath should have the same version" warning
• KT-48851 Keep using warn mode for jspecify in 1.6
• KT-46829 IR: NullPointerException caused by setting scoped generic extension var
• KT-42972 Forbid protected constructor calls from public inline functions
• KT-45378 Prohibit super calls in public-api inline functions
• KT-48515 JSpecify: If a class has a @​Nullable type-parameter bound, Kotlin should still treat unbounded wildcards like platform types
• KT-48825 JVM IR: NPE with delegated property "by this" to base class
• KT-48535 Make EXPERIMENTAL_ANNOTATION_ON_OVERRIDE warning
• KT-47928 Prohibit declarations of repeatable annotation classes whose container annotation violates JLS
• KT-47971 Report error on declaration of a repeatable annotation class with nested class named Container
• KT-48478 JVM IR: Coroutines 1.5.1 + Kotlin 1.5.30 - ClassCastException: CompletedContinuation cannot be cast to DispatchedContinuation
• KT-48523 Kotlin/Native: cross-compilation from Linux to MinGW not working when platform.posix is used
• KT-48671 JVM / IR: "AssertionError: Primitive array expected: CLASS IR_EXTERNAL_DECLARATION_STUB CLASS"
• KT-46181 JVM IR: private @​JvmStatic function is generated in the outer class instead of companion object, which breaks existing calls via JNI or reflection (e.g. JUnit @​MethodSource)
• KT-48736 JVM IR: assert in SyntheticAccessorLowering when inline function attempts to access package-private field from Java
• KT-48653 Warnings on non-exhaustive when statements missing in some cases with 1.6
• KT-48394 JVM: Invalid locals caused by unboxing bytecode optimization
• KT-20542 IllegalAccessError on calling private function with default parameters from internal inline function used in another package
• KT-48331 JVM / IR: "VerifyError: Bad access to protected data in invokevirtual" when a sealed class uses another sealed class in its same hierarchy level as a constructor parameter
• KT-48380 kotlin.RuntimeException: Unexpected receiver type
• KT-47855 Kotlin/Native: compilation fails due to Escape Analysis
• KT-48291 False positive [ACTUAL_MISSING] Declaration must be marked with 'actual' when implementing actual interface
• KT-48445 "IAE: Top level call context should not be null to analyze coroutine-lambda" when compiling Kotlin with language version 1.6
• KT-48618 Enable by default "suspend conversion" feature in 1.6
• KT-47638 Drop EXPERIMENTAL_IS_NOT_ENABLED diagnostic
• KT-48589 KotlinTypeRefiner is lost, leading to TYPE_MISMATCH and OVERLOAD_RESOLUTION_AMBIGUITY issues with MPP projects
• KT-48615 Inconsistent behavior with integer literals overflow (Implementation)
• KT-47937 Implement deprecation of computing constant values of complex boolean expressions in when condition branches and conditions of loops
• KT-48391 JVM / IR: "AssertionError: SyntheticAccessorLowering should not attempt to modify other files!" caused by class which inherits interface which has default function with default argument from companion const val
• KT-48552 Kotlin/Native: iosArm64 debug build fails in 1.6.0-M1-139
• KT-46182 Native: prohibit using dots in identifiers
• KT-46230 JVM IR: "IllegalArgumentException: Null argument in ExpressionCodegen for parameter VALUE_PARAMETER MOVED_DISPATCH_RECEIVER" with value class overriding function with default parameter
• KT-48302 FIR: Investigate not-null assertion on generic Java method
• KT-48350 JVM IR: NPE from LocalDeclarationsLowering on property reference with field from outer class used as receiver (1.6.0-M1 regression)
• KT-48500 AE: "Last parameter type of suspend function must be Continuation, but it is kotlin.coroutines.experimental.Continuation" for kotlin-stdlib-common library
• KT-48469 Problem with properties lazy initialization while using kotlinx.serialization plugin
• KT-48432 Regression in IntRange.contains (and probably other ranges too) when used in-place
• KT-44855 "AssertionError: SyntheticAccessorLowering should not attempt to modify other files" on smart cast of protected field owner
• KT-47542 Incorrect ABSTRACT_CLASS_MEMBER_NOT_IMPLEMENTED after migration to 1.6 on class indirectly extending RuntimeException
• KT-48166 FIR: incorrect common supertype for PSI elements hierarchy
• KT-47499 JVM / IR: java.lang.VerifyError: Bad access to protected data in invokevirtual when trying to clone the result of lambda invocation that is "this" in an extension function
• KT-46451 JVM Debugging: stepping on finally block end brace line before stepping into finally code
• KT-48329 It's impossible to infer a type variables based on several builder inference lambdas
• KT-48193 Don't use the builder inference for calls which can be resolved without it
• KT-46450 JVM Debugging: some break statements in catch blocks have no line numbers and you cannot set breakpoints on them
• KT-48298 FIR: incorrect deserialized annotations in back-end
• KT-48234 FIR: false positive NON_INTERNAL_PUBLISHED_API for primary constructor property
• KT-48174 IR interpreter: unsupported compile-time call
• KT-48158 FIR: false positive ASSIGNMENT_TYPE_MISMATCH as a result of wrong type inference around callable references
• KT-48109 FIR: incorrect type inference for generic argument of intersection type
• KT-48161 FIR: false positive ARGUMENT_TYPE_MISMATCH for bounded type parameter VS Java not-null
• KT-48159 FIR: erroneous scope order during type resolve of constructor return type
• KT-48165 FIR: false positive "initializer should be a constant value" on String.length
• KT-48175 FIR: exception for JvmField on local class property
• KT-48164 FIR: false positive OVERRIDING_FINAL_MEMBER in enum entry
• KT-48116 FIR: false positive NOT_A_LOOP_LABEL
• KT-48102 FIR: false positive ABSTRACT_MEMBER_NOT_IMPLEMENTED with mapped stdlib functions
• KT-47911 Native compiler on ios_arm64 target generates movi.2d instructions, which are mishandled by Apple hardware
• KT-48105 FIR: generic/specific callable reference ambiguity
• KT-14392 Repeated annotation with use site target is not detected for getter and setter
• KT-47493 Missed frontend diagnostic in try/catch
• KT-48058 "No type for expression" compiler exception on calls with unused lambda
• KT-47597 JVM IR: if statement doesn't eval correctly on 1.5.20 possible nullable type differences.
• KT-47922 False negative type mismatch on empty when as last statement of lambda
• KT-34594 Do not generate fake debugger variables initialization for @​InlineOnly functions
• KT-47749 Incorrect scope of a local variable inside the coroutine
• KT-47527 JVM / IR ClassCastException: "kotlin.Unit cannot be cast to java.lang.String"
• KT-47840 JVM / IR: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER name: x" in nested local functions with recursive calls
• KT-46448 JVM Debugging: Locals in finally blocks not always duplicated when the finally block is
• KT-47716 JVM / IR: NoSuchMethodError when trying to get MAX_VALUE from ULong in non-trivial try/finally context
• KT-47762 JVM / IR: Properties with the same signatures in inline class and its companion object crashes the compiler with NullPointerException
• KT-47741 JVM / IR: VerifyError: Bad type on operand stack with iterator and invoking method reference to IntIterator
• KT-43696 ClassFormatError on @​JvmStatic external fun in interface companion object
• KT-47715 JVM / IR, R8: External getter cannot be represented in dex format
• KT-47684 Add warning on is checks which are always false
• KT-47685 False positive CAST_NEVER_SUCCEEDS on variable of intersection type
• KT-32188 NI: False positive "This cast can never succeed"
• KT-35687 NI: Poor cast can never succeed [CAST_NEVER_SUCCEEDS]
• KT-41331 False negative USELESS_IS_CHECK with null
• KT-47609 JVM IR: "AssertionError: Unexpected number of type arguments" when compiling an extension property with annotation and it extends a value class with a generic parameter
• KT-47413 FIR: Rework FirDelegatedScope
• KT-47492 Illegal use of DUP

Docs & Examples

• KT-48534 Wrong compiler argument for RequiresOptIn

IDE

• KT-48604 MISSING_DEPENDENCY_CLASS in test source sets with kotlin.mpp.enableGranularSourceSetsMetadata=true

IDE. Debugger

• KT-47970 AE: "Either library or explicit name have to be provided " in IR debugger tests

IDE. Gradle Integration

• KT-46273 MPP: Don't fail import for case of missed platform in source set structure
• KT-48823 Improve error reporting on import when configuration phase in Gradle failed
• KT-48504 MPP: UninitializedPropertyAccessException on import if new hierarchical mpp flag conflicts with other flags
• KT-47463 MPP: Import fails with Task 'runCommonizer' not found in root project if Kotlin configured only in module

IDE. Multiplatform

• KT-47604 kotlin-stdlib-common leaks into dependencies of Android-specific source sets

JavaScript

• KT-43783 KJS / IR: companion object and nested objects are not exported
• KT-47524 KJS / IR: Treat protected members as part of exported API
• KT-48132 KJS / IR: "IllegalStateException" when interface methods don't have default implementation
• KT-47700 Support instantiation of annotation classes on JS
• KT-48317 KJS / IR: "TypeError: ... is not a function" on running code with suspend function inheritors
• KT-48344 KJS / IR: incorrect call with vararg argument from suspend function
• KT-47751 Kotlin/JS: IR + IC: "argument has no effect without source map" warnings on build

Libraries

New Features

• KT-46423 infix extension fun Comparable.compareTo
• KT-47421 Stabilize collection builders
• KT-48584 Introduce JVM readln() and readlnOrNull() top-level functions

Performance Improvements

• KT-45438 Remove brittle ‘contains’ optimization in minus/removeAll/retainAll

Fixes

• KT-28378 Different behavior of Regex replace function in JVM and JS when replacement string contains group reference
• KT-46785 Get rid of !! after readLine() in the standard library
• KT-46784 Stabilize Duration API in the standard library
• KT-46229 Bring back Duration factory extension properties
• KT-27738 Make JS Regex.replace not inline
• KT-48607 Stabilize experimental API for 1.6
• KT-47304 Random#nextLong generates value outside provided range
• KT-47706 System property that controls the brittle contains optimization
• KT-48999 Align behavior of some JS functions with their JVM counterpart
• KT-46243 Typography.leftGuillemete and Typography.rightGuillemete are named inconsistent with standard
• KT-46101 Review deprecations in stdlib for 1.6
• KT-48456 Introduce Common (multi-platform) readln() and readlnOrNull() top-level functions
• KT-48587 Deprecate some of JS-only stdlib API
• KT-39328 Make builder collection implementations serializable
• KT-47676 K/JS: MatchResult.next() returns no expected next match if called after matchEntire
• KT-39166 Nothing is silently mapped to Void in arguments of the type passed to typeOf
• KT-39330 Migrate declarations from kotlin.dom and kotlin.browser packages to kotlinx.*
• KT-28753 Comparing floating point values in array/list operations 'contains', 'indexOf', 'lastIndexOf': IEEE 754 or total order
• KT-38854 Gradually change the return type of collection min/max functions to non-nullable
• KT-38754 Deprecate appendln in favor of appendLine

Native

• KT-48807 Cinterop: cannot create bindings for a framework when Xcode 13 RC is installed
• KT-49384 Kotlin/Native: Unexpected variance in super type argument: out @​0
• KT-47424 StackOverflowError in IR hashCode() methods compiling KMM module for Kotlin/Native with Kotlin 1.5.0+
• KT-49234 SIGSEGV using the new memory manager in release in Kotlin 1.6.0-RC in MacosX64
• KT-48566 ExceptionInInitializerError when configuring Gradle project with kotlin-multiplatform plugin on a host unsupported by Kotlin/Native
• KT-48039 Native: support shaded (aka embeddable) compiler jar in Gradle plugin
• KT-42693 Remove dependency on ncurses5 library

Native. C Export

• KT-47209 kotlin-native fails to generate valid C header if a setter takes anonymous parameter (_)

Native. C and ObjC Import

• KT-48074 Native: cinterop: __flexarr support

Native. ObjC Export

• KT-47809 Kotlin/Native: ObjC-export module name usage in klib compilation

Native. Platforms

• KT-43024 Kotlin/Native: Windows as cross-compilation target

Native. Runtime

• KT-48452 Kotlin/Native: Support thread state switching in termination handlers for the new MM

Native. Runtime. Memory

• KT-48143 Kotlin/Native: test fails with assert with new MM and state checker
• KT-48364 Uninitialized top-level properties in new MM
• KT-44283 staticCFunction with CValue parameter crashes when invoked off the main thread

Native. Stdlib

• KT-47662 [Native, All platforms] Incorrect parsing of long strings to Float and Double

Reflection

• KT-45066 Support flexible types (nullability, mutability, raw) in typeOf
• KT-35877 typeOf<MutableList<>> cannot be distinguished from typeOf<List<>> in Kotlin/JVM

Tools. CLI

• KT-49007 Support three previous API versions
• KT-48622 Introduce compiler X-flag to use the builder inference for all calls by default
• KT-32376 “no main manifest attribute” on running the jar for cli-compiled Kotlin objects with main function
• KT-48026 Add the compiler X-flag to enable self upper bound type inference
• KT-47640 CLI: support -option=value format as for -Xoption=value
• KT-47099 Add a stable compiler argument for opt-in requirements as soon as they are stable

Tools. Commonizer

New Features

• KT-48455 [Commonizer] Optimistic number commonization
• KT-48459 [Commonizer] Add opt-in annotation to optimistically commonized numbers

Fixes

• KT-47430 [Commonizer] 'platform.posix.DIR' not implementing 'CPointed' when commonized for "unixMain"
• KT-48567 [Commonizer] pthread_self function is not commonized in atomicfu
• KT-48287 [Commonizer] platform.posix.mkdir not commonized in OKIO
• KT-48286 [Commonizer] platform.posix.ftruncate not commonized in OKIO
• KT-47523 MPP: Unable to resolve c-interop dependency if platform is included in an intermediate source set with the only target
• KT-48278 [Commonizer] platform.posix.usleep not commonized in sqliter
• KT-46691 MPP: Type mismatch for hierarchically commonized typealiases
• KT-47221 C-interop commonization fails if few targets reuse same source set
• KT-47775 Commonizer don't run for shared native code if test source set depends on main
• KT-47053 MPP: Unable to resolve c-interop commonized code from shared test source set
• KT-48118 Commonized c-interop lib is not attached to common main source set
• KT-47641 Enabled cInterop commonization triggers native compilation during Gradle sync in IDE
• KT-47056 MPP: Change naming for folder with commonized c-interop libraries

Tools. Compiler Plugins

• KT-48842 Compiler crash: Symbol with IrFieldSymbolImpl is unbound
• KT-48117 Kotlin AllOpen Plugin should open private methods
• KT-40340 jvm-abi-gen plugin: failure with Android D8 (Dexer) tool
• KT-40133 jvm-abi-gen plugin: fails for inline function containing apply block with anonymous object
• KT-28704 jvm-abi-gen plugin: avoid calling codegen twice per module
• KT-48111 JVM / IR: "IllegalAccessError: tried to access method" with NoArg plugin and sealed class

Tools. Gradle

Performance Improvements

• KT-49159 KotlinGradleBuildServices leaks Gradle instance when configuration cache is enabled

Fixes

• KT-45504 Deprecate Gradle option KotlinJvmOptions.useIR since 1.5
• KT-49189 In Gradle, dependencies on an MPP with Android+JVM fail to resolve in pure-Java projects
• KT-48830 Change deprecation level to 'ERROR' for 'KotlinGradleSubplugin'
• KT-48264 Cannot write Kotlin build report unless directory exists
• KT-48745 JVM target compatibility check should be disabled when Java sources are empty
• KT-49066 Setting kotlinOptions.modulePath in an android project breaks incremental compilation
• KT-48847 Remove deprecated kotlin options marked for removal after 1.5
• KT-48245 KGP makes compileOnly configuration resolvable
• KT-38010 Invalid warning "Runtime JAR files in the classpath should have the same version." with java-gradle-plugin
• KT-48768 Misleading 'jdkHome' deprecation message
• KT-46719 Remove 'kotlin.useFallbackCompilerSearch' build option
• KT-47792 KGP should ignore ProjectDependency when customize kotlin Dependencies
• KT-47867 Replace usages of IncrementalTaskInputs with InputChanges
• KT-46972 Migrate Kotlin repo to use Gradle toolchain feature

Tools. Gradle. JS

• KT-49124 KJS / Gradle: Unable to load '@​webpack-cli/serve' command
• KT-49201 KJS / Gradle: NPM dependencies resolution may fail on parallel builds
• KT-48241 KJS / Gradle: NPM test dependency may break Gradle configuration cache
• KT-32071 Possibility to disable downloading of Node.js and Yarn
• KT-48332 Make NodeJsSetupTask and YarnSetupTask not cacheable
• KT-37895 KJS: NPM Post-install Scripts sometimes print "node: not found"
• KT-34985 kotlin-gradle-plugin: Should align ways NodeJs and Yarn are downloaded

Tools. Gradle. Multiplatform

• KT-48709 MPP: Task compileKotlinMacosX64 fails on matching native variants if ktlint presented
• KT-48919 Gradle multiplatform plugin 1.6.0-M1 does not accept apiVersion = "1.7"
• KT-46343 [Commonizer] Use lockfile for NativeDistributionCommonizationCache
• KT-48427 Execution failed for task ':commonizeNativeDistribution'. > java.io.FileNotFoundException lock (No such file or directory)
• KT-48513 Commonized platform libraries are unresolved in modules for new hierarchical MPP flag
• KT-48138 CInteropCommonizer: Missing commonization request if test source set has different targets than associated main
• KT-35832 Gradle: MPP plugin operates with -Xuse-experimental and not with -Xopt-in

Tools. Gradle. Native

• KT-48729 Test-source sets receive extra unnecessary granular dependencies to more common source sets when depending on MPP-library
• KT-37511 CocoaPods Gradle plugin: Support incremental task execution when switching between Xcode and terminal
• KT-47362 Cocoapods plugin: add error reporting for case when pod is not installed on user machine
• KT-37513 CocoaPods Gradle plugin: Support building tests from terminal for projects depending on pods

Tools. Kapt

• KT-45545 Kapt is not compatible with JDK 16+
• KT-47853 KaptWithoutKotlincTask eagerly resolves dependencies during construction/configuration and can cause deadlocks
• KT-47934 KaptJavaLog is unable to map stub back to the kotlin source
• KT-48195 Kapt causes dead lock in DefaultFileLockManager

Tools. Scripts

• KT-49400 Script resolver options can't take values with special symbols (/, , $, :, .) in them
• KT-49012 Compiling .kts script with inner class declaration fails with Backend Internal Error caused by AE: "Local class constructor can't have dispatch receiver"
• KT-47927 Script: memory leak with new engines
• KT-48025 JVM / IR / Script: IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER caused by method tnat returns outer function
• KT-48303 main.kts script fails to detect vanished dependencies if run from the cache
• KT-48177 Scripts: OutOfMemoryException with circular @​file:Import
• KT-46645 Scripts: "IllegalStateException: No mapping for symbol: VALUE_PARAMETER INSTANCE_RECEIVER" caused by get accessor

v1.5.32

Changelog

Tools. Gradle. Multiplatform

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

Checksums

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v1.5.31

Changelog

Compiler

Fixes

• KT-48659 JVM / IR: Referential equality returns true for different instances
• KT-48613 Kotlin/Native fails to compile debug binaries for watchosArm64 target
• KT-48316 "No value passed for parameter" regression with Java annotation default values with JSR-305
• KT-48343 Mistake in an error message for uninferred type variable without unrestricted builder inference
• KT-48543 Native compiler crashes because of bridges for $default stubs
• KT-48349 OptIn markers are forbidden on local variable / value parameter / property getter only in presence of explicit Target annotation
• KT-48295 JVM / IR: VerifyError: Bad access to protected data in getfield
• KT-48551 JVM / IR: "IllegalStateException: Inline class has no primary constructor" caused by inline class from one module and fun interface from another
• KT-47917 JVM: "UTF8 string too large" caused by a big string
• KT-48440 JVM IR: Missing checkcast in generated bytecode causes VerifyError in Kotlin 1.5.30
• KT-48361 INTEGER_OPERATOR_RESOLVE_WILL_CHANGE is not reported in some positions
• KT-48267 JVM IR: CCE on callable reference to Array constructor passed to inline function

IDE

• KTIJ-15744 Reopening build.gradle.kts-based project reports MISSING_SCRIPT_BASE_CLASS KotlinBuildScript until re-import
• KTIJ-19005 JDK 17: "PermittedSubclasses requires ASM9" exception multiple times per second during analysis
• KTIJ-19504 IDE highlighting: Kotlin plugin 1.5.30 started showing some valid classes from multiplatform libraries as not existing

Native

• KT-48591 Kotlin/Native: Char.isHighSurrogate and Char.isLowSurrogate return wrong result for macosArm64 and iosArm64 with compiler cache enabled
• KT-48491 CInterop broke in Kotlin 1.5.30

Checksums

| File | Sha256 | | --- | --- | | kotlin-compiler-1.5.31.zip | 661111286f3e5ac06aaf3a9403d869d9a96a176b62b141814be626a47249fe9e | | kotlin-native-linux-x86_64-1.5.31.tar.gz | 636b7e9e54eefa3fa1d284677a8ec2271d0f98b024a8a60127ef20a3badaae03 | | kotlin-native-macos-x86_64-1.5.31.tar.gz | fde7224a8e04a6cd934ecbf55d4d51966f8a0668104f4316a76b3f38062d1ade | | kotlin-native-macos-aarch64-1.5.31.tar.gz | fbd005e360253e7d7ff1cd78b7cbbe34df0592812676deada6620a53d469d803 | | kotlin-native-windows-x86_64-1.5.31.zip | 11c2e3378ea2e0121e9c3378e58f9813fc5f7850110c0e341739ab514f1379ca |

v1.5.30

Changelog

Backend. Native. Debug

• KT-47405 Incorrect path from inlined method in stacktrace on iOS-simulator ARM64
• KT-47408 Incorrect line number of inlined method on iOS-simulator ARM64

Compiler

New Features

• KT-44261 Support RxJava 3 nullability annotations
• KT-32443 Experimental declarations should be contagious even when they are not explicitly used
• KT-45844 Forbid using experimental markers on override declarations
• KT-45845 Forbid using experimental markers on getter
• KT-46644 Resolve overrides for IrProperty on deserialization
• KT-46967 Support class type parameters annotations in FIR
• KT-47402 Native: optimize access to object declarations that have only const vals and no init blocks
• KT-47709 Make when statements with enum, sealed, and Boolean subjects exhaustive by default
• KT-47699 Support programmatic creation of class annotations and corresponding feature flag on JVM

Performance Improvements

• KT-45103 Direct invoke optimization
• KT-47785 Compilation time increased when trying to compile AssertJ DB expression in 1.5.21

Fixes

• KT-48361 INTEGER_OPERATOR_RESOLVE_WILL_CHANGE is not reported in some positions
• KT-48180 JVM / IR: AssertionError: "Lambda with offset already exists" caused by calling inline function with default lambda parameter
• KT-47328 JVM / IR: NoSuchFieldError with missing CHECKCAST
• KT-48172 "IllegalStateException: Cannot serialize error type: [ERROR : ]" in 1.5.21 with java kotlin interop
• KT-48230 JVM IR: CCE for multiple receivers case
• KT-48262 "Inconsistent type" with JSpecify @​NullMarked
• KT-48167 JVM / IR: If Map#entrySet is implemented in an interface, Kotlin compiler generates incorrect code for its implementation
• KT-47988 JVM / IR: "VerifyError: Bad type on operand stack" when invoking apply with a local method reference
• KT-48163 JVM / IR: "VerifyError: Bad type on operand stack" when throwing result of smartcast
• KT-47833 False positive "Type argument is not within its bounds " with upcasting in 1.5.30-M1
• KT-47830 Some code doesn't compile with unrestricted builder inference
• KT-39883 Deprecate computing constant values if complex boolean expressions in when condition branches and conditions of loops
• KT-47037 Eliminate builder inference restrictions
• KT-46726 IR + BuilderInference: AssertionError: Unbound private symbol on usage of this in a BuilderInference lambda
• KT-43855 Support gradual introduction of new nullability annotations
• KT-43142 FIR: Check UPPER_BOUND_VIOLATED for type alias constructors properly
• KT-45228 Leaking builder inference type variables though callable references
• KT-42270 NI: NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER for BuilderInference with extension functions
• KT-46029 JVM / IR: "Unbound private symbol: " when trying to save SequenceScope in property
• KT-45258 Wrong CST between types which contain stub type
• KT-45224

v1.7.21

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

v1.7.20

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

v1.7.0

Compare Source

What's new since 1.6.1

• All new Switch component with a new look! Check out the updated documentation for details.
• New Shape system that is now being used by all components. Learn about the shape system and see how its used in the Material3 theme and components by checking out the updated documentation
• Checkbox has been redesigned and now supports indeterminate and error states! Check out the updated documentation.
• BottomAppBar has been redesigned! Check out the updated documentation
• New Icon Button support has been added including outlined, tonal, and filled variants!

New minimum requirements for your app's project:

• Update to Android Gradle Plugin (AGP) version 7.2.0
• Update to Gradle version 7.3.3
• Update to Java 8 (version 1.8)
• Update to Android Studio Chipmunk, version 2021.2.1

Dependency Updates

| Dependency | Previous version | New version | | - | - | - | | androidx.appcompat | 1.5.0-beta01 | 1.5.0 | | androidx.core | 1.5.0 | 1.6.0 | | androidx.test | 1.1.0 | 1.4.0 | | Android Gradle Plugin (AGP) | 4.0.0 | 7.2.0 | | Gradle | 6.1.1 | 7.3.3 | | Java Version | 1.7 (7) | 1.8 (8) |

Other highlights

• MaterialButton
  • Added methods to not toggle checked state on buttons on click (a601107)
  • Updated M3 button style to add outlined icon button style (467a2c9)
  • Updated M3 button style to add filled tonal icon button style (14578ed)
  • Updated M3 button style to add filled icon button style (25606cf)
  • Fix icon textStart/End alignment with multiline text (b6b895a)
  • Fix icon position with multiline text (19d0500)
• Documentation
  • Updated typography guidelines to M3 (104a342)
  • Added an example to demonstrate how to make bottom sheet dialog in edge-to-edge mode (57a3c98)
  • Updated Snackbar doc regarding CoordinatorLayout (ef2c2fa)
  • Add status bar / edge-to-edge section to Top App Bar doc (b8e1f97)
• TopAppBar
  • Fixed bug in HeaderScrollingViewBehavior that causes child translation Y not to be reset to default if the behavior is changed from an overlapping to non-overlapping behavior in layoutParams.setBehavior (00c62d2)
  • Excluded views that are GONE from scroll range calculation (687e735)
  • Fixed collapsing title issue with different fonts (0c341c4)
  • Added setLiftOnScrollTargetView() method (d6c4354)
• A11y
  • Made multi-selection Chips announce as Buttons (d4c2c95)
  • Made drawer announce its number of items (b1f7d5b)
• TextInputLayout
  • Added a new custom length counter field and getters/setters to switch how text length is calculated for the counter. (4ded01e)
  • Fixed hint is not displayed when expanding space is limited (73cb1b6)
  • Fixed icon ripples shown behind the edit text (2c0e42f)
  • Updated shapes to use M3 attrs/styles. (0e4e44e)
• Color
  • Fixed HarmonizedColorsOptions.Builder#setColorAttributes is marked as nullable (824a12b)
• Transitions / Motion
  • Updated container transform to use new motion system. (f2f454b)
  • Opened MotionUtils and update resolveThemeInterpolator to load both new and legacy easing attributes. (894edb6)
• Chip
  • Migrated M3 chip styles to new shape system. (3fc53ac)
  • Fixed chip layout not updating when programmatically setting text size (788866e)
• Snackbar
  • Added shape theming support and update M3 style to use new shapeAppearanceCornerExtraSmall (a717813)
  • Made dismiss direction the same as swipe direction (5b9f27a)
• TimePicker
  • Properly align text vertically in MaterialTimePicker on S+. (703249d)
  • Migrated to new shape system (f302da7)
  • Fixed restoring hour/minute selection when switch to text mode (72abed0)
• BottomSheet
  • Disable drag handle when restricting expansion (d4da5b1)
  • Handle half-expanded state when drag handle clicked (f0e6625)
  • Created a drag handle view which support accessibility control (ac7b761)
  • Exposed bottom sheet hide friction with get/set methods. (be1b38c)
  • Migrated to to new shape system. (921868d)
• Divider
  • Fixed lastItemDecorated not being applied to horizontal orientation (92caa19)
  • Fixed extra space when lastItemDecorated = false (714521b)
• Slider
  • Fixed label visibility when slider is hidden (ed11e69)
  • Updated tooltip shape style to use M3 shape system. (75af80c)
• MaterialCardView
  • Migrated shape appearance to new shape system. (bfce84a)
• CollapsingToolbarLayout
  • Added experimental API to allow generic customizations of the StaticLayout.Builder used for the title text (241aa5c)
  • Added ability to set ellipsis on title in CollapsingToolBar (7b043c3)
• NavigationRail
  • Updated active indicator to use new shape system. (f700e6d)
• ProgressIndicator
  • Fixed indeterminate progress indicator not working on API 22 (61cbb8c)
• BottomNavigationView
  • Updated item ripple to be contained within active indicator shape when enabled. (11578b3)
  • Updated active indicator to use new motion system. (1995438)
  • Updated active indicator to new shape system. (9a16aa4)
• ExposedDropdownMenu
  • Added support for default/ripple background colors for the selected item of the exposed dropdown menu when the default MaterialAutoCompleteArrayAdapter is being used. (6206ff5)
• Switch
  • Update dev doc with the new switch design (f469720)
  • Added thumb icon tint to the new switch styles (2f33cfc)
  • Added associated text styles (06bba00)
  • Added material switch style to M3 themes (1e08c68)
  • Created an icon style for the new switch design (a3ca744)
  • Support tinting thumb & track according to thumb position (3b257c0)
• MaterialDatePicker
  • Migrated to new shape system (91a2550)
  • Hide the keyboard when switching to calendar mode (5d6678c)
• FloatingActionButton
  • Migrated "regular/default" sized styles to new shape system. (25482b1)
  • Migrated "Large" styles to use new shape system. (30bb583)
  • Migrated "Small" styles with new shape system. (acc7569)
  • Updated FAB to use new motion attributes. (934985e)
• BottomAppBar
  • Changed default Material3 theme to follow use BottomAppBar M3 specs (53b3001)
  • Added an attribute to remove embedded FAB elevation (f2423de)
  • Added fab end margin attribute (88a73eb)
  • Added menu alignment attribute (397e48f)
  • Generated resources from tokens. (4188995)
  • Added new anchor mode attribute for FAB for an embedded option (cab45dd)
• ExtendedFloatingActionButton
  • Updated show and hide motion specs to use motion tokens. (5c0003c)
• Checkbox
  • Added indeterminate state support to the checkbox. (4da7ce1)
  • Updated checkbox to M3 look. (1666fbc)
  • Added support for error state. (8dd9c7e)
• Tabs
  • Fixed indicator not updating when a tab to the start/left of the selected tab is removed. (2fc2e6a)
• NavigationView
  • Update foreground boundaries of menu items when setting a new foreground (4dc3d93)
• ShapeableImageView
  • Updated to not layer type when view is detached from the window (74b7706)

Full list of changes

Full list of release notes

• 1.7.0-alpha01
• 1.7.0-alpha02
• 1.7.0-alpha03
• 1.7.0-beta01
• 1.7.0-rc01

v0.23.1

Compare Source

• also support publishing sources for the java-test-fixtures plugin in Kotlin/JVM projects
• suppress Gradle warnings when publishing a project that uses java-test-fixtures

v0.23.0

Compare Source

Updated docs can be found on the new website.

• NEW: It is now possible to set group id, artifact id directly through the DSL

  mavenPublishing {
    coordinates("com.example", "library", "1.0.3")
  }
  

• project.group and project.version will still be used as default values for group and version if the GROUP/VERSION_NAME Gradle properties do not exist and coordinates was not called, however there are 2 behavior changes:
  • The GROUP and VERSION_NAME Gradle properties take precedence over project.group and project.version instead of being overwritten by them. If you need to define the properties but replace them for some projects, please use the new coordinates method instead.
  • The GROUP and VERSION_NAME Gradle properties will not be explicitly set as project.group and project.version anymore.
• NEW: Added dropRepository task that will drop a Sonatype staging repository. It is possible to specify which repository to drop by adding a --repository parameter with the id of the staging repository that was printed during publish. If no repository is specified and there is only one staging repository, that one will be dropped.
• Added workaround to also publish sources for the java-test-fixtures plugin
• Fixed publishing Kotlin/JS projects with the base plugin.
• Fixed that a POM configured through the DSL is incomplete when publishing Gradle plugins.
• The minimum supported Gradle version has been increased to 7.3.

v0.22.0

Compare Source

• NEW: When publishing to maven central by setting SONATYPE_HOST or calling publishToMavenCentral(...) the plugin will now explicitly create a staging repository on Sonatype. This avoids issues where a single build would create multiple repositories
• The above change means that the plugin supports parallel builds and it is not neccessary anymore to use --no-parallel and --no-daemon together with publish
• NEW: When publishing with the publish or publishAllPublicationsToMavenCentralRepository tasks the plugin will automatically close the staging repository at the end of the build if it was successful.
• NEW: Option to also automatically release the staging repository after closing was susccessful

SONATYPE_HOST=DEFAULT # or S01
SONATYPE_AUTOMATIC_RELEASE=true

or

mavenPublishing {
  publishToMavenCentral("DEFAULT", true)
  // or publishToMavenCentral("S01", true)
}

• in case the option above is enabled, the closeAndReleaseRepository task is not needed anymore
• when closing the repository fails the plugin will fail the build immediately instead of timing out
• when closing the repository fails the plugin will try to print the error messages from Nexus
• increased timeouts for calls to the Sonatype Nexus APIs
• fixed incompatibility with the com.gradle.plugin-publish plugin
• added wokaround for Kotlin multiplatform builds reporting disabled build optimizations (see KT-46466)

v0.21.0

Compare Source

Minimum supported Gradle version is now 7.2.0

Minimum supported Android Gradle Plugin versions are now 7.1.2, 7.2.0-beta02 and 7.3.0-alpha01

Behavior changes

The com.vanniktech.maven.publish stops adding Maven Central (Sonatype OSS) as a publishing target and will not enable GPG signing by default. To continue publishing to maven central and signing artifacts either add the following to your gradle.properties:

SONATYPE_HOST=DEFAULT

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 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

v1.7.22: Kotlin 1.7.22

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 | 9db4b467743c1aea8

v7.5.1: 7.5.1

This is a patch release for 7.5. We recommend using 7.5.1 instead of 7.5

Read the Release Notes

We would like to thank the following community members for their contributions to this release of Gradle: Michael Bailey, Josh Kasten, Marcono1234, mataha, Lieven Vaneeckhaute, kiwi-oss, Stefan Neuhaus, George Thomas, Anja Papatola, Björn Kautler, David Burström, Vladimir Sitnikov, Roland Weisleder, Konstantin Gribov, David Op de Beeck, aSemy, Rene Groeschke, Jonathan Leitschuh, Aurimas Liutikas, Jamie Tanna, Xin Wang, Atsuto Yamashita, Taeik Lim, Peter Gafert, Alex Landau, Jerry Wiltse, Tyler Burke, Matthew Haughton, Filip Daca, Simão Gomes Viana, Vaidotas Valuckas, Edgars Jasmans, Tomasz Godzik, Jeff, Lajos Veres

Upgrade instructions

Switch your build to use Gradle 7.5.1 by updating your wrapper:

./gradlew wrapper --gradle-version=7.5.1

See the Gradle 7.x upgrade guide to learn about deprecations, breaking changes and other considerations when upgrading.

Reporting Problems

If you find a problem with this release, please file a bug on GitHub Issues adhering to our issue guidelines. If you're not sure you're encountering a bug, please use the forum.

gradle.properties

settings.gradle

build.gradle

• com.android.tools.build:gradle 7.3.1
• org.jetbrains.kotlin:kotlin-gradle-plugin 1.7.21
• com.vanniktech:gradle-maven-publish-plugin 0.20.0
• org.jetbrains.kotlin:kotlin-stdlib 1.7.21

Persian_Numbers/build.gradle

app/build.gradle

• androidx.core:core-ktx 1.8.0
• androidx.appcompat:appcompat 1.4.2
• com.google.android.material:material 1.7.0
• androidx.constraintlayout:constraintlayout 2.1.4

gradle/wrapper/gradle-wrapper.properties

• gradle 7.4.2