Version 1.4.2

CHANGES.md

@@ -1,5 +1,17 @@
 # Change log for kotlinx.coroutines
 
+## Version 1.4.2
+
+* Fixed `StackOverflowError` in `Job.toString` when `Job` is observed in its intermediate state (#2371).
+* Improved liveness and latency of `Dispatchers.Default` and `Dispatchers.IO` in low-loaded mode (#2381).
+* Improved performance of consecutive `Channel.cancel` invocations (#2384).
+* `SharingStarted` is now `fun` interface (#2397).
+* Additional lint settings for `SharedFlow` to catch programmatic errors early (#2376).
+* Fixed bug when mutex and semaphore were not released during cancellation (#2390, thanks to @Tilps for reproducing).
+* Some corner cases in cancellation propagation between coroutines and listenable futures are repaired (#1442, thanks to @vadimsemenov).
+* Fixed unconditional cast to `CoroutineStackFrame` in exception recovery that triggered failures of instrumented code (#2386).
+* Platform-specific dependencies are removed from `kotlinx-coroutines-javafx` (#2360). 
+
 ## Version 1.4.1
 
 This is a patch release with an important fix to the `SharedFlow` implementation.

README.md

@@ -2,7 +2,7 @@
 
 [![official JetBrains project](https://jb.gg/badges/official.svg)](https://confluence.jetbrains.com/display/ALL/JetBrains+on+GitHub)
 [![GitHub license](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0)
-[![Download](https://api.bintray.com/packages/kotlin/kotlinx/kotlinx.coroutines/images/download.svg?version=1.4.1) ](https://bintray.com/kotlin/kotlinx/kotlinx.coroutines/1.4.1)
+[![Download](https://api.bintray.com/packages/kotlin/kotlinx/kotlinx.coroutines/images/download.svg?version=1.4.2) ](https://bintray.com/kotlin/kotlinx/kotlinx.coroutines/1.4.2)
 [![Kotlin](https://img.shields.io/badge/kotlin-1.4.0-blue.svg?logo=kotlin)](http://kotlinlang.org)
 [![Slack channel](https://img.shields.io/badge/chat-slack-green.svg?logo=slack)](https://kotlinlang.slack.com/messages/coroutines/)
 
@@ -86,7 +86,7 @@ Add dependencies (you can also add other modules that you need):
 <dependency>
     <groupId>org.jetbrains.kotlinx</groupId>
     <artifactId>kotlinx-coroutines-core</artifactId>
-    <version>1.4.1</version>
+    <version>1.4.2</version>
 </dependency>
 ```
 
@@ -104,7 +104,7 @@ Add dependencies (you can also add other modules that you need):
 
 ```groovy
 dependencies {
-    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.1'
+    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2'
 }
 ```
 
@@ -130,7 +130,7 @@ Add dependencies (you can also add other modules that you need):
 
 ```groovy
 dependencies {
-    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.1")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2")
 }
 ```
 
@@ -152,7 +152,7 @@ In common code that should get compiled for different platforms, you can add dep
 ```groovy
 commonMain {
     dependencies {
-        implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.1")
+        implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.4.2")
     }
 }
 ```
@@ -163,7 +163,7 @@ Add [`kotlinx-coroutines-android`](ui/kotlinx-coroutines-android)
 module as dependency when using `kotlinx.coroutines` on Android:
 
 ```groovy
-implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.1'
+implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.4.2'
 ```
 
 This gives you access to Android [Dispatchers.Main]
@@ -190,15 +190,15 @@ packagingOptions {
 ### JS
 
 [Kotlin/JS](https://kotlinlang.org/docs/reference/js-overview.html) version of `kotlinx.coroutines` is published as 
-[`kotlinx-coroutines-core-js`](https://search.maven.org/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core-js/1.4.1/jar)
+[`kotlinx-coroutines-core-js`](https://search.maven.org/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core-js/1.4.2/jar)
 (follow the link to get the dependency declaration snippet).
 
 You can also use [`kotlinx-coroutines-core`](https://www.npmjs.com/package/kotlinx-coroutines-core) package via NPM. 
 
 ### Native
 
 [Kotlin/Native](https://kotlinlang.org/docs/reference/native-overview.html) version of `kotlinx.coroutines` is published as 
-[`kotlinx-coroutines-core-native`](https://search.maven.org/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core-native/1.4.1/jar)
+[`kotlinx-coroutines-core-native`](https://search.maven.org/artifact/org.jetbrains.kotlinx/kotlinx-coroutines-core-native/1.4.2/jar)
 (follow the link to get the dependency declaration snippet).
 
 Only single-threaded code (JS-style) on Kotlin/Native is currently supported. 

build.gradle

@@ -33,6 +33,10 @@ buildscript {
             throw new IllegalArgumentException("'kotlin_snapshot_version' should be defined when building with snapshot compiler")
         }
     }
+    // These three flags are enabled in train builds for JVM IR compiler testing
+    ext.jvm_ir_enabled = rootProject.properties['enable_jvm_ir'] != null
+    ext.jvm_ir_api_check_enabled = rootProject.properties['enable_jvm_ir_api_check'] != null
+    ext.native_targets_enabled = rootProject.properties['disable_native_targets'] == null
 
     // Determine if any project dependency is using a snapshot version
     ext.using_snapshot_version = build_snapshot_train
@@ -323,3 +327,12 @@ knit {
 }
 
 knitPrepare.dependsOn getTasksByName("dokka", true)
+
+// Disable binary compatibility check for JVM IR compiler output by default
+if (jvm_ir_enabled) {
+    subprojects { project ->
+        configure(tasks.matching { it.name == "apiCheck" }) {
+            enabled = enabled && jvm_ir_api_check_enabled
+        }
+    }
+}

gradle.properties

@@ -3,7 +3,7 @@
 #
 
 # Kotlin
-version=1.4.1-SNAPSHOT
+version=1.4.2-SNAPSHOT
 group=org.jetbrains.kotlinx
 kotlin_version=1.4.0
 

gradle/compile-jvm-multiplatform.gradle

@@ -6,8 +6,12 @@ sourceCompatibility = 1.6
 targetCompatibility = 1.6
 
 kotlin {
-    targets {
-        fromPreset(presets.jvm, 'jvm')
+    jvm {
+        if (rootProject.ext.jvm_ir_enabled) {
+            compilations.all {
+                kotlinOptions.useIR = true
+            }
+        }
     }
     sourceSets {
         jvmTest.dependencies {

gradle/compile-jvm.gradle

@@ -9,6 +9,12 @@ apply plugin: 'org.jetbrains.kotlin.jvm'
 sourceCompatibility = 1.6
 targetCompatibility = 1.6
 
+if (rootProject.ext.jvm_ir_enabled) {
+    kotlin.target.compilations.all {
+        kotlinOptions.useIR = true
+    }
+}
+
 dependencies {
     testCompile "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
     // Workaround to make addSuppressed work in tests