v2.2.10-RC is a pre-release release. Key changes include:

• KT-78501 K2: Missing [ABSTRACT_SUPER_CALL] diagnostics for delegated interface method leads to AssertionError: isCompiledToJvmDefault during IR lowering;
• KT-78479 IR lowering failed / Unexpected null argument for composable call.

v2.2.20-Beta1 is a pre-release release. Key changes include:

• KT-78187 Synthetic properties not to be shown as callables;
• KT-72525 K2. red code and KIWA on new-lines in guarded when conditions (with parentheses).

v2.2.0 is a minor release. Key changes include:

• KT-73337 Migrate analysis sources to new IR parameter API;
• KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project.

v2.2.0-RC3 is a pre-release release. Key changes include:

• KT-77301 False positive Context Parameter resolution when using DslMarker;
• KT-78073 K/JS: KProperty from local delegate changes after another delegate is invoked.

v2.2.0-RC2 is a pre-release release. Key changes include:

• KT-77622 K/Wasm: investigate CMP crash on mobile Safari;
• KT-77220 Annotation with EXPRESSION is not allowed on lambdas in Kotlin 2.2.0.

v2.2.0-RC is a pre-release release. Key changes include:

• KT-77259 Confusing message for ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD;
• KT-77219 "@Composable annotation is not applicable" on vararg @Composable () -> Unit in Kotlin 2.2.0.

v2.1.21 is a patch release. Key changes include:

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function;
• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated.

v2.1.21-RC2 is a pre-release release: kt-77119 kjs: gradle: setting custom environment variables in kotlinjstest tasks no longer works

v2.2.0-Beta2 is a pre-release release. Key changes include:

• KT-73337 Migrate analysis sources to new IR parameter API;
• KT-68393 Analysis API: Rename KaClassLikeSymbol. classIdIfNonLocal to classId.

v2.1.21-RC is a pre-release release. Key changes include:

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function;
• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated.

v2.2.0-Beta1 is a pre-release release. Key changes include:

• KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project;
• KT-74246 KaVisibilityChecker.isVisible is inefficient with multiple calls on the same use-site.

v2.1.20 is a patch release. Key changes include:

• KT-68198 Analysis API: Support application service registration in plugin XMLs;
• KT-57733 Analysis API: Use optimized ModuleWithDependenciesScopes in combined symbol providers.

v2.1.20-RC3 is a pre-release release. Key changes include:

• KT-75578 K2: False negative [SUPER_CALL_WITH_DEFAULT_PARAMETERS] when calling the upper-class implementation of a method with the default value argument;
• KT-75965 The iOS app did not run successfully in Release mode.

v2.1.20-RC2 is a pre-release release. Key changes include:

• KT-75649 K2: NPE on assigning platform type value to non-nullable lateinit var;
• KT-75483 Native: redundant unboxing generated with smart cast.

v2.1.20-RC is a pre-release release. Key changes include:

• KT-74929 False positive TYPE_PARAMETER_OF_PROPERTY_NOT_USED_IN_RECEIVER if it is used with T&Any;
• KT-74227 K2: "Cannot infer type for this parameter. Please specify it explicitly" caused by lambda in another lambda with a parameterized function type.

v2.1.20-Beta2 is a pre-release release. Key changes include:

• KT-73156 AA: type retrieval for erroneous typealias crashes;
• KT-68198 Analysis API: Support application service registration in plugin XMLs.

v2.1.10 is a patch release. Key changes include:

• KT-73858 Compose / iOS: NullPointerException on building;
• KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS.

v2.1.10-RC2 is a pre-release release. Key changes include:

• KT-73858 Compose / iOS: NullPointerException on building;
• KT-74040 Compilation of inner class usage does not check the visibility of parent class during compilation in different rounds.

v2.1.10-RC is a pre-release release. Key changes include:

• KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS;
• KT-73043 K2 Compiler does not allow references to inner constructors with typealiases.

v2.2.10-RC is a pre-release release. Key changes include:

• KT-78501 K2: Missing [ABSTRACT_SUPER_CALL] diagnostics for delegated interface method leads to AssertionError: isCompiledToJvmDefault during IR lowering;
• KT-78479 IR lowering failed / Unexpected null argument for composable call.

v2.2.20-Beta1 is a pre-release release. Key changes include:

• KT-78187 Synthetic properties not to be shown as callables;
• KT-72525 K2. red code and KIWA on new-lines in guarded when conditions (with parentheses).

v2.2.0 is a minor release. Key changes include:

• KT-73337 Migrate analysis sources to new IR parameter API;
• KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project.

v2.2.0-RC3 is a pre-release release. Key changes include:

• KT-77301 False positive Context Parameter resolution when using DslMarker;
• KT-78073 K/JS: KProperty from local delegate changes after another delegate is invoked.

v2.2.0-RC2 is a pre-release release. Key changes include:

• KT-77622 K/Wasm: investigate CMP crash on mobile Safari;
• KT-77220 Annotation with EXPRESSION is not allowed on lambdas in Kotlin 2.2.0.

v2.2.0-RC is a pre-release release. Key changes include:

• KT-77259 Confusing message for ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD;
• KT-77219 "@Composable annotation is not applicable" on vararg @Composable () -> Unit in Kotlin 2.2.0.

v2.1.21 is a patch release. Key changes include:

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function;
• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated.

v2.1.21-RC2 is a pre-release release: kt-77119 kjs: gradle: setting custom environment variables in kotlinjstest tasks no longer works

v2.2.0-Beta2 is a pre-release release. Key changes include:

• KT-73337 Migrate analysis sources to new IR parameter API;
• KT-68393 Analysis API: Rename KaClassLikeSymbol. classIdIfNonLocal to classId.

v2.1.21-RC is a pre-release release. Key changes include:

• KT-75991 Xcode 16.3: Fix lldb stepping test over an inline function;
• KT-75992 Xcode 16.3: stacktraces on simulators are not symbolicated.

v2.2.0-Beta1 is a pre-release release. Key changes include:

• KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project;
• KT-74246 KaVisibilityChecker.isVisible is inefficient with multiple calls on the same use-site.

v2.1.20 is a patch release. Key changes include:

• KT-68198 Analysis API: Support application service registration in plugin XMLs;
• KT-57733 Analysis API: Use optimized ModuleWithDependenciesScopes in combined symbol providers.

v2.1.20-RC3 is a pre-release release. Key changes include:

• KT-75578 K2: False negative [SUPER_CALL_WITH_DEFAULT_PARAMETERS] when calling the upper-class implementation of a method with the default value argument;
• KT-75965 The iOS app did not run successfully in Release mode.

v2.1.20-RC2 is a pre-release release. Key changes include:

• KT-75649 K2: NPE on assigning platform type value to non-nullable lateinit var;
• KT-75483 Native: redundant unboxing generated with smart cast.

v2.1.20-RC is a pre-release release. Key changes include:

• KT-74929 False positive TYPE_PARAMETER_OF_PROPERTY_NOT_USED_IN_RECEIVER if it is used with T&Any;
• KT-74227 K2: "Cannot infer type for this parameter. Please specify it explicitly" caused by lambda in another lambda with a parameterized function type.

v2.1.20-Beta2 is a pre-release release. Key changes include:

• KT-73156 AA: type retrieval for erroneous typealias crashes;
• KT-68198 Analysis API: Support application service registration in plugin XMLs.

v2.1.10 is a patch release. Key changes include:

• KT-73858 Compose / iOS: NullPointerException on building;
• KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS.

v2.1.10-RC2 is a pre-release release. Key changes include:

• KT-73858 Compose / iOS: NullPointerException on building;
• KT-74040 Compilation of inner class usage does not check the visibility of parent class during compilation in different rounds.

v2.1.10-RC is a pre-release release. Key changes include:

• KT-73454 K2: Fix type parameters mapping for typealiases with inner RHS;
• KT-73043 K2 Compiler does not allow references to inner constructors with typealiases.