# CHANGELOG

<!-- Find: ([^\[/])(KT-\d+) -->
<!-- Replace: $1[$2](https://youtrack.jetbrains.com/issue/$2) -->

## 1.1

## 1.0.3

### Compiler

### IDE

## 1.0.2

### Compiler

#### Analysis & diagnostics

- [KT-7437](https://youtrack.jetbrains.com/issue/KT-7437), [KT-7971](https://youtrack.jetbrains.com/issue/KT-7971), [KT-7051](https://youtrack.jetbrains.com/issue/KT-7051), [KT-6125](https://youtrack.jetbrains.com/issue/KT-6125), [KT-6186](https://youtrack.jetbrains.com/issue/KT-6186), [KT-11649](https://youtrack.jetbrains.com/issue/KT-11649) Implement missing checks for protected visibility
- [KT-11666](https://youtrack.jetbrains.com/issue/KT-11666) Report "Implicit nothing return type" on non-override member functions
- [KT-4328](https://youtrack.jetbrains.com/issue/KT-4328), [KT-11497](https://youtrack.jetbrains.com/issue/KT-11497), [KT-10493](https://youtrack.jetbrains.com/issue/KT-10493), [KT-10820](https://youtrack.jetbrains.com/issue/KT-10820), [KT-11368](https://youtrack.jetbrains.com/issue/KT-11368) Report error if some classes were not found due to missing or conflicting dependencies
- [KT-11280](https://youtrack.jetbrains.com/issue/KT-11280) Do not perform smart casts for values with custom `equals` compared with `==`
- [KT-3856](https://youtrack.jetbrains.com/issue/KT-3856) Fix wrong "inner class inaccessible" diagnostic for extension to outer class
- [KT-3896](https://youtrack.jetbrains.com/issue/KT-3896), [KT-3883](https://youtrack.jetbrains.com/issue/KT-3883), [KT-4986](https://youtrack.jetbrains.com/issue/KT-4986) `do...while (true)` is now considered an infinite loop
- [KT-10445](https://youtrack.jetbrains.com/issue/KT-10445) Prohibit initialization of captured `val` in lambda or in local function
- [KT-10042](https://youtrack.jetbrains.com/issue/KT-10042) Correctly handle local classes and anonymous objects in control flow analysis
- [KT-11043](https://youtrack.jetbrains.com/issue/KT-11043) Prohibit complex expressions with class literals in annotation arguments
- [KT-10992](https://youtrack.jetbrains.com/issue/KT-10992), [KT-11007](https://youtrack.jetbrains.com/issue/KT-11007) Fix multiple problems related to smart casts
- [KT-11490](https://youtrack.jetbrains.com/issue/KT-11490) Prohibit nested intersection types in return position
- [KT-11411](https://youtrack.jetbrains.com/issue/KT-11411) Report "illegal noinline/crossinline" on parameter of subtype of function type
- [KT-3083](https://youtrack.jetbrains.com/issue/KT-3083) Report "conflicting overloads" for functions with parameter of type parameter type
- [KT-7265](https://youtrack.jetbrains.com/issue/KT-7265) Parse anonymous functions in blocks as expressions
- [KT-8246](https://youtrack.jetbrains.com/issue/KT-8246) Handle break/continue for outer loop correctly in case of try/finally in between
- Report warning about unused anonymous functions
- Improve multiple diagnostic messages: [KT-10761](https://youtrack.jetbrains.com/issue/KT-10761), [KT-9760](https://youtrack.jetbrains.com/issue/KT-9760), [KT-10949](https://youtrack.jetbrains.com/issue/KT-10949), [KT-9887](https://youtrack.jetbrains.com/issue/KT-9887), [KT-9550](https://youtrack.jetbrains.com/issue/KT-9550)
- Fix several compiler bugs leading to exceptions: [KT-9820](https://youtrack.jetbrains.com/issue/KT-9820), [KT-11597](https://youtrack.jetbrains.com/issue/KT-11597), [KT-10983](https://youtrack.jetbrains.com/issue/KT-10983), [KT-10972](https://youtrack.jetbrains.com/issue/KT-10972), [KT-11287](https://youtrack.jetbrains.com/issue/KT-11287), [KT-11492](https://youtrack.jetbrains.com/issue/KT-11492)

#### JVM code generation

- [KT-8269](https://youtrack.jetbrains.com/issue/KT-8269), [KT-9246](https://youtrack.jetbrains.com/issue/KT-9246), [KT-10143](https://youtrack.jetbrains.com/issue/KT-10143) Fix visibility of protected classes in bytecode
- [KT-11363](https://youtrack.jetbrains.com/issue/KT-11363) Fix potential binary compatibility breakage on using `when` over enums in inline functions
- [KT-9670](https://youtrack.jetbrains.com/issue/KT-9670) Optimize Class <-> KClass wrapping/unwrapping when getting values from annotation
- [KT-6842](https://youtrack.jetbrains.com/issue/KT-6842) Optimize unnecessary boxing and interface calls on iterating over ranges
- [KT-11025](https://youtrack.jetbrains.com/issue/KT-11025) Don't inline const val properties in non-annotation contexts
- [KT-5429](https://youtrack.jetbrains.com/issue/KT-5429) Write nullability annotations on extension receiver parameters
- [KT-11347](https://youtrack.jetbrains.com/issue/KT-11347) Preserve source file and line number of call site when inlining certain standard library functions
- [KT-11677](https://youtrack.jetbrains.com/issue/KT-11677) Write correct generic signatures for local classes in inlined lambdas
- Fix multiple issues leading to exceptions or bad bytecode being generated: [KT-11034](https://youtrack.jetbrains.com/issue/KT-11034), [KT-11519](https://youtrack.jetbrains.com/issue/KT-11519), [KT-11117](https://youtrack.jetbrains.com/issue/KT-11117), [KT-11479](https://youtrack.jetbrains.com/issue/KT-11479)

#### Java interoperability

- [KT-3068](https://youtrack.jetbrains.com/issue/KT-3068) Load contravariantly projected collections in Java (`List<? super T>`) as mutable collections in Kotlin (`MutableList<in T>`)
- [KT-11322](https://youtrack.jetbrains.com/issue/KT-11322) Do not lose type nullability information in SAM constructors
- [KT-11721](https://youtrack.jetbrains.com/issue/KT-11721) Fix wrong "Typechecker has run into recursive problem" error on calling Kotlin get function as synthetic Java property
- [KT-10691](https://youtrack.jetbrains.com/issue/KT-10691) Fix wrong "Inherited platform declarations clash" error on inheritance from generic Java class with overloaded methods

#### Command line compiler

- [KT-9546](https://youtrack.jetbrains.com/issue/KT-9546) Flush stdout and stderr before shutdown when executing scripts
- [KT-10605](https://youtrack.jetbrains.com/issue/KT-10605) Disable colored output on certain platforms to prevent crashes
- Remove the compiler option "Xmultifile-facades-open"

#### Compiler daemon

- Reduce read disk activity
- Fix compiler daemon JAR cache clearing on IDEA Ultimate

### Standard library

- [KT-11410](https://youtrack.jetbrains.com/issue/KT-11410) Reduce method count of the standard library by ~2k
- [KT-9990](https://youtrack.jetbrains.com/issue/KT-9990) Optimize snapshot operations to return special collection implementations when result is empty or has single element
- [KT-10794](https://youtrack.jetbrains.com/issue/KT-10794) EmptyList now implements RandomAccess
- [KT-10821](https://youtrack.jetbrains.com/issue/KT-10821) Create at most one wrapper sequence for adjacent drop/take operations on sequences
- [KT-11301](https://youtrack.jetbrains.com/issue/KT-11301) Make Map.plus accept Map out-projected by key type as either operand (receiver or parameter)
- [KT-11485](https://youtrack.jetbrains.com/issue/KT-11485) Remove implementations of some internal intrinsic functions
- [KT-11648](https://youtrack.jetbrains.com/issue/KT-11648) Add deprecated extension MutableList.remove to redirect to valid function removeAt
- [KT-11348](https://youtrack.jetbrains.com/issue/KT-11348) kotlin.test: Make inline methods `todo` and `currentStackTrace` `@InlineOnly` not to lose stack trace
- [KT-11745](https://youtrack.jetbrains.com/issue/KT-11745) Rename parameters of `String.subSequence` to match those of `CharSequence.subSequence`
- [KT-10953](https://youtrack.jetbrains.com/issue/KT-10953) Clarify parameter order of lambda function parameter of `*Indexed` functions
- [KT-10198](https://youtrack.jetbrains.com/issue/KT-10198) Improve docs for `binarySearch` functions
- [KT-9786](https://youtrack.jetbrains.com/issue/KT-9786) Improve docs for `trimIndent`/`trimMargin`

### Reflection

- [KT-9952](https://youtrack.jetbrains.com/issue/KT-9952) Improve `toString()` for lambdas and function expressions when kotlin-reflect.jar is available
- [KT-11433](https://youtrack.jetbrains.com/issue/KT-11433) Fix multiple resource leaks by closing InputStream instances
- [KT-8131](https://youtrack.jetbrains.com/issue/KT-8131) Fix exception from calling `KProperty.javaField` on a subclass
- [KT-10690](https://youtrack.jetbrains.com/issue/KT-10690) Support `javaMethod` and `kotlinFunction` for top level functions in a different file
- [KT-11447](https://youtrack.jetbrains.com/issue/KT-11447) Support reflection calls to multifile class members
- [KT-10892](https://youtrack.jetbrains.com/issue/KT-10892) Load annotations of const properties from multifile classes
- [KT-11258](https://youtrack.jetbrains.com/issue/KT-11258) Don't crash on requesting members of Java collection classes
- [KT-11502](https://youtrack.jetbrains.com/issue/KT-11502) Clarify KClass equality

### JS

- [KT-4124](https://youtrack.jetbrains.com/issue/KT-4124) Support nested classes
- [KT-6912](https://youtrack.jetbrains.com/issue/KT-6912) Safe calls (`x?.let { it }`) are now inlined
- [KT-10614](https://youtrack.jetbrains.com/issue/KT-10614) Copy array on vararg call with spread operator
- [KT-10785](https://youtrack.jetbrains.com/issue/KT-10785) Correctly translate property names and receiver instances in assignment operations
- [KT-10667](https://youtrack.jetbrains.com/issue/KT-10667) Support inheritance from nested built-in types such as Map.Entry
- [KT-7480](https://youtrack.jetbrains.com/issue/KT-7480) Remove declarations of LinkedList, SortedSet, TreeSet, Enumeration
- [KT-3064](https://youtrack.jetbrains.com/issue/KT-3064) Implement `CharSequence.repeat`

### IDE

New features:

- Enable precise incremental compilation by default in non-Maven/Gradle projects
- [KT-11612](https://youtrack.jetbrains.com/issue/KT-11612) Highlight named arguments
- [KT-7715](https://youtrack.jetbrains.com/issue/KT-7715) Highlight `var`s that can be replaced by `val`s
- [KT-5208](https://youtrack.jetbrains.com/issue/KT-5208) Intention action to convert string to raw string and back
- [KT-11078](https://youtrack.jetbrains.com/issue/KT-11078) Quick fix to remove `.java` when KClass is expected
- [KT-1494](https://youtrack.jetbrains.com/issue/KT-1494) Inspection to highlight public members with no documentation
- [KT-8473](https://youtrack.jetbrains.com/issue/KT-8473) Intention action to implement interface or abstract class
- [KT-10299](https://youtrack.jetbrains.com/issue/KT-10299) Inspection to warn on array properties in data classes
- [KT-6674](https://youtrack.jetbrains.com/issue/KT-6674) Inspection to warn on protected symbols in effectively final classes
- [KT-11576](https://youtrack.jetbrains.com/issue/KT-11576) Quick fix to suppress "Unused symbol" warning based on annotations on the declaration
- [KT-10063](https://youtrack.jetbrains.com/issue/KT-10063) Quick fix for adding `arrayOf` wrapper for annotation parameters
- [KT-10476](https://youtrack.jetbrains.com/issue/KT-10476) Quick fix for converting primitive types
- [KT-10859](https://youtrack.jetbrains.com/issue/KT-10859) Quick fix to make `var` with private setter final
- [KT-9498](https://youtrack.jetbrains.com/issue/KT-9498) Quick fix to specify property type
- [KT-10509](https://youtrack.jetbrains.com/issue/KT-10509) Quick fix to simplify condition with senseless comparison
- [KT-11404](https://youtrack.jetbrains.com/issue/KT-11404) Quick fix to let type implement missing interface
- [KT-6785](https://youtrack.jetbrains.com/issue/KT-6785), [KT-10013](https://youtrack.jetbrains.com/issue/KT-10013), [KT-9996](https://youtrack.jetbrains.com/issue/KT-9996), [KT-11675](https://youtrack.jetbrains.com/issue/KT-11675) Support Smart Enter for trailing lambda argument, try/catch/finally, property setter, init block
- Add `kotlinClassName()` and `kotlinFunctionName()` macros for use in live templates

Issues fixed:

- [KT-11678](https://youtrack.jetbrains.com/issue/KT-11678), [KT-4768](https://youtrack.jetbrains.com/issue/KT-4768) Support navigation to Kotlin libraries from Java sources
- [KT-9401](https://youtrack.jetbrains.com/issue/KT-9401) Support Change Signature quick fix for Java -> Kotlin case
- [KT-8592](https://youtrack.jetbrains.com/issue/KT-8592) Fix "Choose sources" for Kotlin files
- [KT-11256](https://youtrack.jetbrains.com/issue/KT-11256) Fix Navigate to declaration for Java constructor with `@NotNull` parameter
- [KT-11018](https://youtrack.jetbrains.com/issue/KT-11018) Fix `var`s shown in Ctrl + Mouse Hover as `val`s
- [KT-5105](https://youtrack.jetbrains.com/issue/KT-5105), [KT-11024](https://youtrack.jetbrains.com/issue/KT-11024) Improve incompatible ABI versions editor strap, show the hint on how to resolve the problem
- [KT-11638](https://youtrack.jetbrains.com/issue/KT-11638) Fixed `hashCode()` implementation in "Generate equals/hashCode" action
- [KT-10971](https://youtrack.jetbrains.com/issue/KT-10971) Pull Members Up: Always insert spaces between keywords
- [KT-11476](https://youtrack.jetbrains.com/issue/KT-11476), [KT-4175](https://youtrack.jetbrains.com/issue/KT-4175), [KT-10965](https://youtrack.jetbrains.com/issue/KT-10965), [KT-11076](https://youtrack.jetbrains.com/issue/KT-11076) Formatter: fix multiple issues regarding space handling
- [KT-9025](https://youtrack.jetbrains.com/issue/KT-9025) Improve "Create Kotlin Java runtime library" dialog usability
- [KT-11481](https://youtrack.jetbrains.com/issue/KT-11481) Fix "Add import" intention not being available for `is` branches in when
- [KT-10619](https://youtrack.jetbrains.com/issue/KT-10619) Fix completion after package name in annotation
- [KT-10621](https://youtrack.jetbrains.com/issue/KT-10621) Do not show non-top level packages after `@` in completion
- [KT-11295](https://youtrack.jetbrains.com/issue/KT-11295) "Convert string to template" intention: fix exception on certain code
- [KT-10750](https://youtrack.jetbrains.com/issue/KT-10750), [KT-11424](https://youtrack.jetbrains.com/issue/KT-11424) "Convert if to when" intention now detects effectively else branches in subsequent code and performs more accurate comment handling
- Configure Kotlin: show only changed files in the notification "Kotlin not configured", restore all changed files in undo action
- [KT-11593](https://youtrack.jetbrains.com/issue/KT-11593) Fix "Configure Kotlin" action for Gradle projects in IDEA 2016
- [KT-11077](https://youtrack.jetbrains.com/issue/KT-11077) Use new built-in definition file format (`.kotlin_builtins` files)
- [KT-5728](https://youtrack.jetbrains.com/issue/KT-5728) Remove closing curly brace in a string template when opening one is deleted
- [KT-10883](https://youtrack.jetbrains.com/issue/KT-10883) "Explicit get or set call" quick fix: do not move caret too far away
- [KT-5717](https://youtrack.jetbrains.com/issue/KT-5717) "Replace 'when' with 'if'": do not lose comments
- [KT-10797](https://youtrack.jetbrains.com/issue/KT-10797) "Replace with operator" intention is not available anymore for non-`operator` functions
- [KT-11529](https://youtrack.jetbrains.com/issue/KT-11529) Highlighting range for unresolved annotation name does not include `@` now
- [KT-11178](https://youtrack.jetbrains.com/issue/KT-11178) Don't show "Change type arguments" fix when there's nothing to change
- Fix several issues leading to exceptions: [KT-11579](https://youtrack.jetbrains.com/issue/KT-11579), [KT-11580](https://youtrack.jetbrains.com/issue/KT-11580)
- Fixed NoSuchFieldException in Kotlin module settings on IDEA Ultimate

#### Debugger

- [KT-11705](https://youtrack.jetbrains.com/issue/KT-11705) "Smart step into" no longer skips methods from subclasses
- Debugger can now distinguish nested inline arguments
- [KT-11326](https://youtrack.jetbrains.com/issue/KT-11326) Support private classes in Evaluate Expression
- [KT-11455](https://youtrack.jetbrains.com/issue/KT-11455) Fix Evaluate Expression behavior for files with errors in sources
- [KT-10670](https://youtrack.jetbrains.com/issue/KT-10670) Fix Evaluate Expression behavior for inline functions with default parameters
- [KT-11380](https://youtrack.jetbrains.com/issue/KT-11380) Evaluate Expression now handles smart casts correctly
- [KT-10148](https://youtrack.jetbrains.com/issue/KT-10148) Do not suggest methods from outer context in "Smart step into"
- Fix Evaluate Expression for expression created for array element
- Complete private members from libraries in Evaluate Expression
- [KT-11578](https://youtrack.jetbrains.com/issue/KT-11578) Evaluate Expression: do not highlight completion variants from nullable receiver with grey
- [KT-6805](https://youtrack.jetbrains.com/issue/KT-6805) Convert Java expression to Kotlin when opening Evaluate Expression from Variables view
- Show error message when debug info for some local variable is corrupted
- Avoid 1s delay in completion in debugger fields if session is not stopped on a breakpoint

### Java to Kotlin converter

- Protected members used outside of inheritors are converted as public
- Support conversion for annotation constructor calls
- Place comments from the middle of the call to the end
- Drop line breaks between operator arguments (except `+`, `-`, `&&` and `||`)
- Add non-null assertions on call site for non-null parameters
- Specify type for variables with anonymous type if they have write accesses
- [KT-11587](https://youtrack.jetbrains.com/issue/KT-11587) Fix conversion of static field accesses from other Java class
- [KT-6800](https://youtrack.jetbrains.com/issue/KT-6800) Quote `$` symbols in converted strings
- [KT-11126](https://youtrack.jetbrains.com/issue/KT-11126) Convert annotations in annotations parameters correctly
- [KT-11600](https://youtrack.jetbrains.com/issue/KT-11600) Do not produce unresolved `toArray` calls for Java `Collection#toArray(T[])`
- [KT-11544](https://youtrack.jetbrains.com/issue/KT-11544) Fix conversion of uninitialized non-final field

### Android

- [KT-11487](https://youtrack.jetbrains.com/issue/KT-11487) Fixed sequential build with kapt and stubs enabled when Kotlin source file was modified and no Java source files were modified
- [KT-11264](https://youtrack.jetbrains.com/issue/KT-11264) Action to create new activity in Kotlin
- [KT-11201](https://youtrack.jetbrains.com/issue/KT-11201) Do not ignore items with similar names in kapt

### Maven

- [KT-2917](https://youtrack.jetbrains.com/issue/KT-2917), [KT-11261](https://youtrack.jetbrains.com/issue/KT-11261) Maven archetype for new Kotlin projects

### Gradle

- [KT-8487](https://youtrack.jetbrains.com/issue/KT-8487) Experimental support for incremental compilation with project property `kotlin.incremental`
- [KT-11350](https://youtrack.jetbrains.com/issue/KT-11350) Fixed a bug causing Java rebuild when both Java and Kotlin are up-to-date

## 1.0.1-2

### Compiler

- [KT-11584](https://youtrack.jetbrains.com/issue/KT-11584), [KT-11514](https://youtrack.jetbrains.com/issue/KT-11514) Correct comparison of Long! / Double! with integer constant
- [KT-11590](https://youtrack.jetbrains.com/issue/KT-11590) SAM adapter for inline function corrected

## 1.0.1-1

### Compiler

- [KT-11468](https://youtrack.jetbrains.com/issue/KT-11468) More correct use-site / declaration-site variance combination handling
- [KT-11478](https://youtrack.jetbrains.com/issue/KT-11478) "Couldn't inline method call" internal compiler error fixed

## 1.0.1

### Compiler

Analysis & diagnostics issues fixed:

- [KT-2277](https://youtrack.jetbrains.com/issue/KT-2277) Local function declarations are now checked for overload conflicts
- [KT-3602](https://youtrack.jetbrains.com/issue/KT-3602)  Special diagnostic is reported now on nullable ‘for’ range
- [KT-10775](https://youtrack.jetbrains.com/issue/KT-10775) No compilation exception for empty when
- [KT-10952](https://youtrack.jetbrains.com/issue/KT-10952) False deprecation warnings removed
- [KT-10934](https://youtrack.jetbrains.com/issue/KT-10934) Type inference improved for whens
- [KT-10902](https://youtrack.jetbrains.com/issue/KT-10902) Redeclaration is reported for top-level property vs classifier conflict
- [KT-9985](https://youtrack.jetbrains.com/issue/KT-9985)  Correct handling of safe call arguments in generic functions
- [KT-10856](https://youtrack.jetbrains.com/issue/KT-10856) Diagnostic about projected out member is reported correctly on calls with smart cast receiver
- [KT-5190](https://youtrack.jetbrains.com/issue/KT-5190)  Calls of Java 8 Stream.collect
- [KT-11109](https://youtrack.jetbrains.com/issue/KT-11109) Warning is reported on Strictfp annotation on a class because it's not supported yet
- [KT-10686](https://youtrack.jetbrains.com/issue/KT-10686) Support generic constructors defined in Java
- [KT-6958](https://youtrack.jetbrains.com/issue/KT-6958)  Fixed resolution for overloaded functions with extension lambdas
- [KT-10765](https://youtrack.jetbrains.com/issue/KT-10765) Correct handling of overload conflict between constructor and function in JPS
- [KT-10752](https://youtrack.jetbrains.com/issue/KT-10752) If inferred type for an expression refers to a non-accessible Java class, it's a compiler error to prevent IAE in runtime
- [KT-7415](https://youtrack.jetbrains.com/issue/KT-7415) Approximation of captured types in signatures
- [KT-10913](https://youtrack.jetbrains.com/issue/KT-10913), [KT-10186](https://youtrack.jetbrains.com/issue/KT-10186), [KT-5198](https://youtrack.jetbrains.com/issue/KT-5198) False “unreachable code” fixed for various situations
- Minor: [KT-3680](https://youtrack.jetbrains.com/issue/KT-3680), [KT-9702](https://youtrack.jetbrains.com/issue/KT-9702), [KT-8776](https://youtrack.jetbrains.com/issue/KT-8776), [KT-6745](https://youtrack.jetbrains.com/issue/KT-6745), [KT-10919](https://youtrack.jetbrains.com/issue/KT-10919), [KT-9548](https://youtrack.jetbrains.com/issue/KT-9548)

JVM code generation issues fixed:

- [KT-11153](https://youtrack.jetbrains.com/issue/KT-11153) NoClassDefFoundError is fixed on primitive iterators during boxing optimization
- [KT-7319](https://youtrack.jetbrains.com/issue/KT-7319)  Correct parameter names for @JvmOverloads-generated methods
- [KT-10425](https://youtrack.jetbrains.com/issue/KT-10425) Non-const values of member properties are not inlined now
- [KT-11163](https://youtrack.jetbrains.com/issue/KT-11163) Correct calls of custom compareTo on primitives
- [KT-11081](https://youtrack.jetbrains.com/issue/KT-11081) Reified type parameters are correctly stored in anonymous objects
- [KT-11121](https://youtrack.jetbrains.com/issue/KT-11121) Generic properties generation is fixed for interfaces
- [KT-11285](https://youtrack.jetbrains.com/issue/KT-11285), [KT-10958](https://youtrack.jetbrains.com/issue/KT-10958) Special bridge generation refined
- [KT-10313](https://youtrack.jetbrains.com/issue/KT-10313), [KT-11190](https://youtrack.jetbrains.com/issue/KT-11190), [KT-11192](https://youtrack.jetbrains.com/issue/KT-11192), [KT-11130](https://youtrack.jetbrains.com/issue/KT-11130) Diagnostics and bytecode fixed for various operations with Long
- [KT-11203](https://youtrack.jetbrains.com/issue/KT-11203), [KT-11191](https://youtrack.jetbrains.com/issue/KT-11191), [KT-11206](https://youtrack.jetbrains.com/issue/KT-11206), [KT-8505](https://youtrack.jetbrains.com/issue/KT-8505), [KT-11203](https://youtrack.jetbrains.com/issue/KT-11203) Handling of increment / decrement for collection elements with user-defined get / set fixed
- [KT-9739](https://youtrack.jetbrains.com/issue/KT-9739)  Backticked names with spaces are generated correctly

JS translator issues fixed:

- [KT-7683](https://youtrack.jetbrains.com/issue/KT-7683), [KT-11027](https://youtrack.jetbrains.com/issue/KT-11027) correct handling of in / !in inside when expressions

### Standard library

- [KT-10579](https://youtrack.jetbrains.com/issue/KT-10579) Improved performance of sum() and average() for arrays
- [KT-10821](https://youtrack.jetbrains.com/issue/KT-10821) Improved performance of drop() / take() for sequences

### Reflection

- [KT-10840](https://youtrack.jetbrains.com/issue/KT-10840) Fix annotations on Java elements in reflection

### IDE

New features:

- Compatibility with IDEA 2016
- Kotlin Education Plugin (for IDEA 2016)
- [KT-9752](https://youtrack.jetbrains.com/issue/KT-9752)  More usable file chooser for "Move declaration to another file"
- [KT-9697](https://youtrack.jetbrains.com/issue/KT-9697)  Move method to companion object and back
- [KT-7443](https://youtrack.jetbrains.com/issue/KT-7443) Inspection + intention to replace assert (x != null) with "!!" or elvis

General issues fixed:

- [KT-11277](https://youtrack.jetbrains.com/issue/KT-11277) Correct moving of Java classes from project view
- [KT-11256](https://youtrack.jetbrains.com/issue/KT-11256) Navigate Declaration fixed for Java classes with @NotNull parameter in constructor
- [KT-10553](https://youtrack.jetbrains.com/issue/KT-10553) A warning provided when Refactor / Move result is not compilable due to visibility problems
- [KT-11039](https://youtrack.jetbrains.com/issue/KT-11039) Parameter names are now not missing in parameter info and completion for compiled java code used from kotlin
- [KT-10204](https://youtrack.jetbrains.com/issue/KT-10204) Highlight usages in file is working now for function parameter
- [KT-10954](https://youtrack.jetbrains.com/issue/KT-10954) Introduce Parameter (Ctrl+Alt+P) fixed when default value is a simple name reference
- [KT-10776](https://youtrack.jetbrains.com/issue/KT-10776) Intentions: "Convert to lambda expression" works now for empty function body
- [KT-10815](https://youtrack.jetbrains.com/issue/KT-10815) Generate equals() and hashCode() is no more suggested for interfaces
- [KT-10818](https://youtrack.jetbrains.com/issue/KT-10818) "Initialize with constructor parameter" fixed
- [KT-8876](https://youtrack.jetbrains.com/issue/KT-8876) "Convert member to extension" now removes modality modifiers (open / final)
- [KT-10800](https://youtrack.jetbrains.com/issue/KT-10800) Create enum entry now adds comma after a new entry
- [KT-10552](https://youtrack.jetbrains.com/issue/KT-10552) Pull Members Up now takes visibility conflicts into account
- [KT-10978](https://youtrack.jetbrains.com/issue/KT-10978) Partially fixed, completion for JOOQ became ~ 10 times faster
- [KT-10940](https://youtrack.jetbrains.com/issue/KT-10940) Reference search optimized for convention functions
- [KT-9026](https://youtrack.jetbrains.com/issue/KT-9026)  Editor no more locks up during scala file viewing
- [KT-11142](https://youtrack.jetbrains.com/issue/KT-11142), [KT-11276](https://youtrack.jetbrains.com/issue/KT-11276) Darkula scheme appearance corrected for Kotlin
- Minor: [KT-10778](https://youtrack.jetbrains.com/issue/KT-10778), [KT-10763](https://youtrack.jetbrains.com/issue/KT-10763), [KT-10908](https://youtrack.jetbrains.com/issue/KT-10908), [KT-10345](https://youtrack.jetbrains.com/issue/KT-10345), [KT-10696](https://youtrack.jetbrains.com/issue/KT-10696), [KT-11041](https://youtrack.jetbrains.com/issue/KT-11041), [KT-9434](https://youtrack.jetbrains.com/issue/KT-9434), [KT-8744](https://youtrack.jetbrains.com/issue/KT-8744), [KT-9738](https://youtrack.jetbrains.com/issue/KT-9738), [KT-10912](https://youtrack.jetbrains.com/issue/KT-10912)

Configuration issues fixed:

- [KT-11213](https://youtrack.jetbrains.com/issue/KT-11213) Kotlin plugin version corrected in build.gradle
- [KT-10918](https://youtrack.jetbrains.com/issue/KT-10918) "Update Kotlin runtime" action does not try to update the runtime coming in from Gradle
- [KT-11072](https://youtrack.jetbrains.com/issue/KT-11072) Libraries in maven, gradle and ide systems are never more detected as runtime libraries
- [KT-10489](https://youtrack.jetbrains.com/issue/KT-10489) Configuration messages are aggregated into one notification
- [KT-10831](https://youtrack.jetbrains.com/issue/KT-10831) Configure Kotlin in Project: "All modules containing Kotlin files" does not list modules not containing Kotlin files
- [KT-10366](https://youtrack.jetbrains.com/issue/KT-10366) Gradle import: no fake "Configure Kotlin" notification on project creating

Debugger issues fixed:

- [KT-10827](https://youtrack.jetbrains.com/issue/KT-10827) Fixed debugger stepping for inline calls
- [KT-10780](https://youtrack.jetbrains.com/issue/KT-10780) Breakpoints in a lazy property work correctly
- [KT-10634](https://youtrack.jetbrains.com/issue/KT-10634) Watches can now use private overloaded functions
- [KT-10611](https://youtrack.jetbrains.com/issue/KT-10611) Line breakpoints now can be created inside lambda in init block
- [KT-10673](https://youtrack.jetbrains.com/issue/KT-10673) Breakpoints inside lambda are no more ignored in presence of crossinline function parameter
- [KT-11318](https://youtrack.jetbrains.com/issue/KT-11318) Stepping inside for each is optimized
- [KT-3873](https://youtrack.jetbrains.com/issue/KT-3873)  Editing code while standing on breakpoint is optimized
- [KT-7261](https://youtrack.jetbrains.com/issue/KT-7261), [KT-7266](https://youtrack.jetbrains.com/issue/KT-7266), [KT-10672](https://youtrack.jetbrains.com/issue/KT-10672) Evaluate expression applicability corrected

### Tools

- [KT-7943](https://youtrack.jetbrains.com/issue/KT-7943), [KT-10127](https://youtrack.jetbrains.com/issue/KT-10127) Overhead removed in Kotlin Gradle Plugin
- [KT-11351](https://youtrack.jetbrains.com/issue/KT-11351) Fixed NoSuchMethodError with Gradle 2.12