Prepend changelog of 1.3-M1 and 1.3-M2

2026-03-10 08:31:29 +00:00 · 2018-08-30 23:11:15 +03:00
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 # CHANGELOG

+## 1.3-M2
+
+### Compiler
+
+#### New Features
+
+- [`KT-6592`](https://youtrack.jetbrains.com/issue/KT-6592) Support local variable initialization in lambda arguments to some functions
+- [`KT-19323`](https://youtrack.jetbrains.com/issue/KT-19323) Allow generic type parameter to have mixed constraints for @InlineOnly functions
+- [`KT-24857`](https://youtrack.jetbrains.com/issue/KT-24857) Support compatibility wrappers for coroutines in compiler
+- [`KT-25320`](https://youtrack.jetbrains.com/issue/KT-25320) Support limited conversions for constants to simplify interop for Kotlin/Native
+- [`KT-25372`](https://youtrack.jetbrains.com/issue/KT-25372) Support JvmName on annotation property getters
+- [`KT-25495`](https://youtrack.jetbrains.com/issue/KT-25495) Release contract DSL as experimental
+- [`KT-25557`](https://youtrack.jetbrains.com/issue/KT-25557) Metadata that maps coroutine label to the file name and line number
+- [`KT-25559`](https://youtrack.jetbrains.com/issue/KT-25559) Metadata that maps coroutine spilled state to local variables
+- [`KT-25655`](https://youtrack.jetbrains.com/issue/KT-25655) Safe or non-null calls required on x following check(x != null)
+- [`KT-25972`](https://youtrack.jetbrains.com/issue/KT-25972) Support reading binary metadata of the next major release
+
+#### Performance Improvements
+
+- [`KT-24657`](https://youtrack.jetbrains.com/issue/KT-24657) Compiler performance issues with big files
+- [`KT-26243`](https://youtrack.jetbrains.com/issue/KT-26243) Avoid redundant "specialized" method for suspend lambdas.
+
+#### Fixes
+
+- [`KT-19628`](https://youtrack.jetbrains.com/issue/KT-19628) Unresolved reference not reported on data class constructor `@get` annotation
+- [`KT-20830`](https://youtrack.jetbrains.com/issue/KT-20830) Nulls can propagate through "enhanced nullability" types on module boundaries
+- [`KT-21240`](https://youtrack.jetbrains.com/issue/KT-21240) Remove suspendCoroutineOrReturn intrinsic from compiler
+- [`KT-22379`](https://youtrack.jetbrains.com/issue/KT-22379) Condition of while-loop with break can produce unsound smartcast
+- [`KT-23438`](https://youtrack.jetbrains.com/issue/KT-23438) Back-end (JVM) Internal error: Failed to generate function suspendCoroutineOrReturn
+- [`KT-23819`](https://youtrack.jetbrains.com/issue/KT-23819) Inline classes: mapping of fully generic classes 
+- [`KT-23857`](https://youtrack.jetbrains.com/issue/KT-23857) Annotation with target TYPE is not applicable to TYPE_USE in Java sources
+- [`KT-24717`](https://youtrack.jetbrains.com/issue/KT-24717) Allow number literals to be used as unsigned ones with unsigned expected typed
+- [`KT-24860`](https://youtrack.jetbrains.com/issue/KT-24860) Forbid usage function expression as suspend function expression
+- [`KT-24872`](https://youtrack.jetbrains.com/issue/KT-24872) Do not generate user-defined methods inside box class of inline class
+- [`KT-24873`](https://youtrack.jetbrains.com/issue/KT-24873) Generate equals/hashCode/toString methods for inline classes same as for data classes
+- [`KT-25246`](https://youtrack.jetbrains.com/issue/KT-25246) Incorrect bytecode generated for secondary constructor in inline class + primitive array
+- [`KT-25278`](https://youtrack.jetbrains.com/issue/KT-25278) No smart cast for "returns() implies" contract when default argument is omitted
+- [`KT-25287`](https://youtrack.jetbrains.com/issue/KT-25287) Getter-targeted annotations on annotation constructor parameters are lost
+- [`KT-25293`](https://youtrack.jetbrains.com/issue/KT-25293) “Couldn't transform method node” error on compiling inline class with hashCode() method call when underlying value type is basic (number, char, boolean)
+- [`KT-25299`](https://youtrack.jetbrains.com/issue/KT-25299) NoSuchMethodError Foo$Erased.hashCode(Ljava/lang/Object;) for hashCode(), toString() and equals() methods in inline classes
+- [`KT-25328`](https://youtrack.jetbrains.com/issue/KT-25328) “Couldn't transform method node” error on compiling inline class which is wrapping Unit type
+- [`KT-25330`](https://youtrack.jetbrains.com/issue/KT-25330) CCE “[Ljava.lang.Integer; cannot be cast to Foo” for inline class which is wrapping Array<T>
+- [`KT-25521`](https://youtrack.jetbrains.com/issue/KT-25521) Coroutines state machine in Kotlin 1.3 should not have getLabel/setLabel
+- [`KT-25558`](https://youtrack.jetbrains.com/issue/KT-25558) Stabilize field naming and mangling for suspending lambda classes
+- [`KT-25580`](https://youtrack.jetbrains.com/issue/KT-25580) No warning about experimental API when unsigned types are inferred
+- [`KT-25599`](https://youtrack.jetbrains.com/issue/KT-25599) “Exception during code generation” on compiling code with public constructor of unsigned numbers array
+- [`KT-25614`](https://youtrack.jetbrains.com/issue/KT-25614) Support secondary constructors for inline classes
+- [`KT-25683`](https://youtrack.jetbrains.com/issue/KT-25683) Compiler support for calling experimental suspend functions and function with experimental suspend function type as parameter
+- [`KT-25688`](https://youtrack.jetbrains.com/issue/KT-25688) Add $continuation to LVT
+- [`KT-25750`](https://youtrack.jetbrains.com/issue/KT-25750) CCE “Foo cannot be cast to java.lang.String” with inline class
+- [`KT-25760`](https://youtrack.jetbrains.com/issue/KT-25760) Inline data class throws java.lang.VerifyError when trying toString() it
+- [`KT-25794`](https://youtrack.jetbrains.com/issue/KT-25794) Incorrect code generated for accessing elements of Array<C> where C is inline class
+- [`KT-25824`](https://youtrack.jetbrains.com/issue/KT-25824) Move SuspendFunctionN fictitious interfaces to kotlin.coroutines package
+- [`KT-25825`](https://youtrack.jetbrains.com/issue/KT-25825) Allow to distinguish instances of function types from instances of suspend function types via kotlin.coroutines.jvm.internal.SuspendFunction marker interface
+- [`KT-25912`](https://youtrack.jetbrains.com/issue/KT-25912) Calling groupingBy+reduce from suspend function causes IncompatibleClassChangeError
+- [`KT-25914`](https://youtrack.jetbrains.com/issue/KT-25914) '==' for inline class with custom 'equals' uses underlying primitive type comparison instead
+- [`KT-25973`](https://youtrack.jetbrains.com/issue/KT-25973) Report metadata version mismatch upon discovering a .kotlin_module file in the dependencies with an incompatible metadata version
+- [`KT-25981`](https://youtrack.jetbrains.com/issue/KT-25981) Incorrect code generated for unboxed to boxed inline class equality
+- [`KT-25983`](https://youtrack.jetbrains.com/issue/KT-25983) Inline class equality uses IEEE 754 instead of total order
+- [`KT-26029`](https://youtrack.jetbrains.com/issue/KT-26029) Prohibit delegated properties inside inline classes
+- [`KT-26030`](https://youtrack.jetbrains.com/issue/KT-26030) Prohibit implementation by delegation for inline classes
+- [`KT-26052`](https://youtrack.jetbrains.com/issue/KT-26052) Inline Classes: IllegalArgumentException when underlying type is non-null but declared type is nullable
+- [`KT-26101`](https://youtrack.jetbrains.com/issue/KT-26101) Prohibit inline classes with recursive underlying types
+- [`KT-26103`](https://youtrack.jetbrains.com/issue/KT-26103) Inline class with type parameters is inconsistently mapped to JVM type if underlying type is a primitive
+- [`KT-26120`](https://youtrack.jetbrains.com/issue/KT-26120) Inline Classes: Class inheritance is allowed but fails when referencing a superclass member
+
+### IDE
+
+- [`KT-25316`](https://youtrack.jetbrains.com/issue/KT-25316) PARTIAL resolve mode doesn't work when effects system is enabled
+- [`KT-25611`](https://youtrack.jetbrains.com/issue/KT-25611) With Language / API version = "Latest stable" installing 1.3-M1 plugin upgrades actual values to 1.3
+- [`KT-25681`](https://youtrack.jetbrains.com/issue/KT-25681) Remove "Coroutines (experimental)" settings from IDE and do not pass `-Xcoroutines` to JPS compiler (since 1.3)
+- [`KT-25714`](https://youtrack.jetbrains.com/issue/KT-25714) Kotlin plugin updater suggests plugins incompatible with current Studio build platform
+- [`KT-26239`](https://youtrack.jetbrains.com/issue/KT-26239) New MPP template: add `kotlin-test` libraries to the modules dependencies by default
+- [`KT-26290`](https://youtrack.jetbrains.com/issue/KT-26290) Gradle Import: When all modules have the same language/API version use it for project-level settings as well
+
+### IDE. Completion
+
+- [`KT-25275`](https://youtrack.jetbrains.com/issue/KT-25275) Code completion does not take into account smart casts gotten from "returns implies" contract
+
+### IDE. Inspections and Intentions
+
+- [`KT-22330`](https://youtrack.jetbrains.com/issue/KT-22330) "Add remaining branch" quickfix doesn't properly import enum class
+- [`KT-22354`](https://youtrack.jetbrains.com/issue/KT-22354) "Add remaining branches with import" quick fix causes KNPE at ImportAllMembersIntention$Companion.importReceiverMembers()
+- [`KT-26158`](https://youtrack.jetbrains.com/issue/KT-26158) KNPE in "Create local variable"
+
+### IDE. Multiplatform
+
+- [`KT-26217`](https://youtrack.jetbrains.com/issue/KT-26217) "org.jetbrains.kotlin.resolve.MultiTargetPlatform$Common cannot be cast to org.jetbrains.kotlin.resolve.MultiTargetPlatform$Specific" on splitted actuals
+
+### IDE. Script
+
+- [`KT-25814`](https://youtrack.jetbrains.com/issue/KT-25814) IDE scripting console -> kotlin (JSR-223) - compilation errors - unresolved IDEA classes
+- [`KT-25822`](https://youtrack.jetbrains.com/issue/KT-25822) jvmTarget from the script compiler options is ignored in the IDE
+
+### JavaScript
+
+- [`KT-22053`](https://youtrack.jetbrains.com/issue/KT-22053) JS: Secondary constructor of Throwable inheritor doesn't call to primary one
+- [`KT-25014`](https://youtrack.jetbrains.com/issue/KT-25014) Support 'when' with subject variable in JS back-end
+- [`KT-26064`](https://youtrack.jetbrains.com/issue/KT-26064) JS inliner calls wrong constructor in incremental build
+- [`KT-26117`](https://youtrack.jetbrains.com/issue/KT-26117) JS runtime error: ArrayList_init instead of ArrayList_init_0
+- [`KT-26138`](https://youtrack.jetbrains.com/issue/KT-26138) JS: prohibit external inline class
+- [`KT-26171`](https://youtrack.jetbrains.com/issue/KT-26171) Prohibit inline classes as parameter and return type of external declaration
+
+### Language design
+
+- [`KT-7566`](https://youtrack.jetbrains.com/issue/KT-7566) Annotate kotlin.test.Test.assertNotNull() so that safe dereference isn't required after it
+- [`KT-14397`](https://youtrack.jetbrains.com/issue/KT-14397) Make "smart cast" to non-null string working after isNullOrEmpty() check.
+- [`KT-19532`](https://youtrack.jetbrains.com/issue/KT-19532) Evaluation order for constructor call
+- [`KT-22274`](https://youtrack.jetbrains.com/issue/KT-22274) Restrict statement labels applicability
+
+### Libraries
+
+#### New Features
+
+- [`KT-13814`](https://youtrack.jetbrains.com/issue/KT-13814) keys.associateWith { k -> v } function
+- [`KT-15539`](https://youtrack.jetbrains.com/issue/KT-15539) Random Convenience Method in Ranges (LongRange, IntRange, etc)
+- [`KT-15695`](https://youtrack.jetbrains.com/issue/KT-15695) String/Collection/Map/Array/Sequence.ifEmpty { null }
+- [`KT-18986`](https://youtrack.jetbrains.com/issue/KT-18986) Debug-friendly toString implementation for CoroutineImpl
+- [`KT-25570`](https://youtrack.jetbrains.com/issue/KT-25570) Random extensions to generate unsigned random numbers
+- [`KT-25659`](https://youtrack.jetbrains.com/issue/KT-25659) Consider adding SuccessOrFailure.getOrDefault function
+- [`KT-25874`](https://youtrack.jetbrains.com/issue/KT-25874) Support array copying between two existing arrays
+- [`KT-25875`](https://youtrack.jetbrains.com/issue/KT-25875) Need more access to raw underlying array in unsigned arrays
+- [`KT-25962`](https://youtrack.jetbrains.com/issue/KT-25962) Add contract for 'synchronized'
+- [`KT-26339`](https://youtrack.jetbrains.com/issue/KT-26339) Introduce CoroutineStackFrame interface for coroutine stack reconstruction in debugger
+
+#### Fixes
+
+- [`KT-16097`](https://youtrack.jetbrains.com/issue/KT-16097) Index overflow when sequence has more than Int.MAX_VALUE elements
+- [`KT-17176`](https://youtrack.jetbrains.com/issue/KT-17176) Long/Int progressions with Long.MIN_VALUE and Int.MIN_VALUE step are weird
+- [`KT-19305`](https://youtrack.jetbrains.com/issue/KT-19305) IOStreams#readBytes is badly named
+- [`KT-19489`](https://youtrack.jetbrains.com/issue/KT-19489) Array.copyOfRange returns value violating declared type when bounds are out of range
+- [`KT-21049`](https://youtrack.jetbrains.com/issue/KT-21049) Different behavior in split by regex at JVM and JS
+- [`KT-23799`](https://youtrack.jetbrains.com/issue/KT-23799) Discontinue deprecated artifacts distribution: kotlin-runtime, kotlin-jslib, kotlin-stdlib-jre7/8
+- [`KT-25274`](https://youtrack.jetbrains.com/issue/KT-25274) contract() function has internal visibility
+- [`KT-25303`](https://youtrack.jetbrains.com/issue/KT-25303) checkNotNull(T?) has no contract in contrast to checkNotNull(T?, () -> Any)
+- [`KT-25771`](https://youtrack.jetbrains.com/issue/KT-25771) SuccessOrFailure.isFailure always returns false when boxed
+- [`KT-25961`](https://youtrack.jetbrains.com/issue/KT-25961) Provide a way to create default-initialized 'U*Array'
+- [`KT-26161`](https://youtrack.jetbrains.com/issue/KT-26161) String-to-number and number-to-string conversions for unsigned integers
+
+### Reflection
+
+- [`KT-14657`](https://youtrack.jetbrains.com/issue/KT-14657) Reflection: Provide ability to enumerate all cases of a sealed class
+- [`KT-16795`](https://youtrack.jetbrains.com/issue/KT-16795) KType does not implement KAnnotatedElement
+- [`KT-21972`](https://youtrack.jetbrains.com/issue/KT-21972) Reflection: Implement suspend functions `KCallable.callSuspend`,  `callSuspendBy`, and `isSuspend`
+
+### Tools. CLI
+
+- [`KT-25823`](https://youtrack.jetbrains.com/issue/KT-25823) Report a warning or error if an old language version or API version is used
+
+### Tools. Gradle
+
+- [`KT-26301`](https://youtrack.jetbrains.com/issue/KT-26301) In new MPP, a project with no `java` or `java-base` plugin applied cannot depend on a published MPP lib or run tests
+
+### Tools. Scripts
+
+- [`KT-26142`](https://youtrack.jetbrains.com/issue/KT-26142) update maven-central remote repository url
+
+
+
+## 1.3-M1 IDE plugins update
+
+### IDE
+
+- Kotlin plugin for Android Studio 3.3 Canary 4 is ready
+- [`KT-25713`](https://youtrack.jetbrains.com/issue/KT-25713) Android Studio on 182 platform: Gradle project re-import fails 
+- [`KT-25733`](https://youtrack.jetbrains.com/issue/KT-25733) "Convert Java File to Kotlin File" action was always disabled
+
+
+
+## 1.3-M1
+
+### Language design
+
+- [`KEEP-104`](https://github.com/Kotlin/KEEP/issues/104) Inline classes
+- [`KEEP-135`](https://github.com/Kotlin/KEEP/issues/135) Unsigned integer types
+- [`KEEP-95`](https://github.com/Kotlin/KEEP/issues/95) Experimental API annotations
+- [`KT-4895`](https://youtrack.jetbrains.com/issue/KT-4895) Support assignment of "when" subject to a variable
+- [`KT-13762`](https://youtrack.jetbrains.com/issue/KT-13762) Prohibit annotations with target 'EXPRESSION' and retention 'BINARY' or 'RUNTIME'
+- [`KT-16681`](https://youtrack.jetbrains.com/issue/KT-16681) kotlin allows mutating the field of read-only property
+- [`KT-21515`](https://youtrack.jetbrains.com/issue/KT-21515) Restrict visibility of classifiers, nested in companion objects
+
+### Compiler
+
+- [`KT-24848`](https://youtrack.jetbrains.com/issue/KT-24848) Refine loading Java overrides of Kotlin suspend functions
+- [`KT-9580`](https://youtrack.jetbrains.com/issue/KT-9580) Report an error if 'setparam' target does not make sense for a parameter declaration
+- [`KT-16310`](https://youtrack.jetbrains.com/issue/KT-16310) Nested classes inside enum entries capturing outer members
+- [`KT-17981`](https://youtrack.jetbrains.com/issue/KT-17981) Type parameter for catch parameter possible when exception is nested in generic, but fails in runtime
+- [`KT-21354`](https://youtrack.jetbrains.com/issue/KT-21354) Inconsistent behavior of 'for-in-range' loop if range is an array variable modified in loop body
+- [`KT-25333`](https://youtrack.jetbrains.com/issue/KT-25333) Restrict visibility of Java static members from supertypes of companion object
+- [`KT-25623`](https://youtrack.jetbrains.com/issue/KT-25623) Do not load experimental coroutines as non-suspend function with additional Continuation parameter
+
+#### Backend. JVM
+
+- [`KT-6301`](https://youtrack.jetbrains.com/issue/KT-6301) Support JvmStatic annotation on interface companion object members
+- [`KT-25508`](https://youtrack.jetbrains.com/issue/KT-25508) Inject probeCoroutineSuspended to coroutines body
+- [`KT-18987`](https://youtrack.jetbrains.com/issue/KT-18987) Unroll recursion in CoroutineImpl.resume
+- [`KT-11567`](https://youtrack.jetbrains.com/issue/KT-11567) Companion object INSTANCE field more visible than companion object class itself
+- [`KT-13764`](https://youtrack.jetbrains.com/issue/KT-13764) Support lambdas and function references for arities bigger than 22
+- [`KT-16615`](https://youtrack.jetbrains.com/issue/KT-16615) Do not generate ConstantValue attribute for non-const vals
+- [`KT-25193`](https://youtrack.jetbrains.com/issue/KT-25193) Names of parameters from Java interface methods implemented by delegation are lost  
+- [`KT-25324`](https://youtrack.jetbrains.com/issue/KT-25324) VerifyError “Bad type on operand stack” on running code with call of array iterator for array of inline classes
+- [`KT-25325`](https://youtrack.jetbrains.com/issue/KT-25325) CCE “Foo cannot be cast to java.lang.String” for iterating over the list of inline classes
+- [`KT-25626`](https://youtrack.jetbrains.com/issue/KT-25626) Inline class values inside string literals don't use their own toString implementation
+
+#### Backend. JVM. Coroutines
+
+- [`KT-20219`](https://youtrack.jetbrains.com/issue/KT-20219) Inline suspend function can't be used as non-inline function
+- [`KT-24863`](https://youtrack.jetbrains.com/issue/KT-24863) Support new Continuation API in JVM BE
+- [`KT-24864`](https://youtrack.jetbrains.com/issue/KT-24864) Create new CoroutineImpl and other internal coroutines interfaces
+
+#### Backend. JVM. Inline
+
+- [`KT-25511`](https://youtrack.jetbrains.com/issue/KT-25511) Inline classes fail with cross-inline functions
+
+#### Binary Metadata
+
+- [`KT-24617`](https://youtrack.jetbrains.com/issue/KT-24617) Optional expected annotation is unresolved in a dependent platform module
+- [`KT-25120`](https://youtrack.jetbrains.com/issue/KT-25120) RequireKotlin on nested class and its members is not loaded correctly
+- [`KT-25273`](https://youtrack.jetbrains.com/issue/KT-25273) java.lang.UnsupportedOperationException from incremental JS compilation
+- [`KT-25310`](https://youtrack.jetbrains.com/issue/KT-25310) Write isUnsigned flag into metadata for unsigned types
+
+
+#### Frontend
+
+- [`KT-15807`](https://youtrack.jetbrains.com/issue/KT-15807) @JvmField is not applicable to interface companion properties
+- [`KT-16962`](https://youtrack.jetbrains.com/issue/KT-16962) Annotation classes cannot contain types or static fields because they cannot have a body
+- [`KT-23153`](https://youtrack.jetbrains.com/issue/KT-23153) Compiler allows to set non constant value as annotation parameter
+- [`KT-23362`](https://youtrack.jetbrains.com/issue/KT-23362) Move coroutines to package kolin.coroutines for 1.3
+- [`KT-24861`](https://youtrack.jetbrains.com/issue/KT-24861) Fix loading kotlin.suspend compiled with LV=1.2 when release coroutines package is used
+- [`KT-25241`](https://youtrack.jetbrains.com/issue/KT-25241) Kotlin compiler doesn't warn about usage of lambda/reference with more than 22 parameters
+- [`KT-25600`](https://youtrack.jetbrains.com/issue/KT-25600) NSEE “Collection is empty” after trying to call default constructor of unsigned number class
+
+#### Frontend. Data-flow analysis
+
+- [`KT-22517`](https://youtrack.jetbrains.com/issue/KT-22517) Deprecate smartcasts for local delegated properties
+
+#### Frontend. Declarations
+
+- [`KT-19618`](https://youtrack.jetbrains.com/issue/KT-19618) Data class `copy()` call with optional parameters leads to broken code when the class implements an interface with `copy()`
+- [`KT-23277`](https://youtrack.jetbrains.com/issue/KT-23277) Prohibit local annotation classes
+- [`KT-24197`](https://youtrack.jetbrains.com/issue/KT-24197) Make 'mod' operator error in 1.3
+
+#### Frontend. Lexer & Parser
+
+- [`KT-24663`](https://youtrack.jetbrains.com/issue/KT-24663) Add 'UL' suffix to represent number literals of unsigned Long type
+
+#### Frontend. Resolution and Inference
+
+- [`KT-16908`](https://youtrack.jetbrains.com/issue/KT-16908) Support callable references to suspending functions
+- [`KT-20588`](https://youtrack.jetbrains.com/issue/KT-20588) Report error on single element assignment to varargs in named form in annotations
+- [`KT-20589`](https://youtrack.jetbrains.com/issue/KT-20589) Report error on single element assignment to varargs in named form in functions
+- [`KT-24859`](https://youtrack.jetbrains.com/issue/KT-24859) Disallow calls of functions annotated with receiver annotated with @RestrictsSuspension in foreign suspension context
+
+### IDE
+
+- [`KT-25466`](https://youtrack.jetbrains.com/issue/KT-25466) Make coroutines resolve to be independent of language and API versions set in `Kotlin Compiler` settings
+
+#### IDE. Inspections and Intentions
+
+- [`KT-24243`](https://youtrack.jetbrains.com/issue/KT-24243) Support quick fix to enable usages of Experimental/UseExperimental
+- [`KT-11154`](https://youtrack.jetbrains.com/issue/KT-11154) Spell checking inspection is not suppressable
+- [`KT-25169`](https://youtrack.jetbrains.com/issue/KT-25169) Impossible to suppress UAST/JVM inspections
+
+#### IDE. Libraries
+
+- [`KT-25129`](https://youtrack.jetbrains.com/issue/KT-25129) Idea freezes when Kotlin plugin tries to determine if jar is js lib in jvm module
+
+
+### Libraries
+
+#### New Features
+
+- [`KEEP-131`](https://github.com/Kotlin/KEEP/issues/131), [`KT-17261`](https://youtrack.jetbrains.com/issue/KT-17261) Add random number generator to stdlib and related collection extension functions
+- [`KT-7922`](https://youtrack.jetbrains.com/issue/KT-7922) Companion object for Boolean
+- [`KT-8247`](https://youtrack.jetbrains.com/issue/KT-8247) Byte size for primitives
+- [`KT-16552`](https://youtrack.jetbrains.com/issue/KT-16552) Add Sequence.orEmpty()
+- [`KT-18559`](https://youtrack.jetbrains.com/issue/KT-18559) Make SafeContinuation and context impl classes serializable
+- [`KT-18910`](https://youtrack.jetbrains.com/issue/KT-18910) StringBuilder#setLength(0) in non-JVM Kotlin
+- [`KT-21763`](https://youtrack.jetbrains.com/issue/KT-21763) Provide Char MIN_VALUE/MAX_VALUE constants
+- [`KT-23279`](https://youtrack.jetbrains.com/issue/KT-23279) isNullOrEmpty() for collections, maps, and arrays
+- [`KT-23602`](https://youtrack.jetbrains.com/issue/KT-23602) Make kotlin.Metadata public
+
+#### Fixes
+
+- [`KT-23564`](https://youtrack.jetbrains.com/issue/KT-23564) KotlinJS: Math is deprecated yet random is not a global function
+- [`KT-24856`](https://youtrack.jetbrains.com/issue/KT-24856) Create compatibility wrappers for migration from 1.2 to 1.3 coroutines
+- [`KT-24862`](https://youtrack.jetbrains.com/issue/KT-24862) Create new Continuation API for coroutines 
+
+### Reflection
+
+- [`KT-25541`](https://youtrack.jetbrains.com/issue/KT-25541) Incorrect parameter names in reflection for inner class constructor from Java class compiled with "-parameters"
+
+
+
 ## 1.2.60

 ### Compiler