Releases

Kotlin 1.7.0 unveils the Alpha version of the new Kotlin/JVM K2 compiler, stabilizes language features, and brings performance improvements for the JVM, JS, and Native platforms.

Kotlin 1.6.20 offers previews of future language features and brings performance improvements for the JVM, JS, and Native platforms.

Enjoy a better debugging experience, improved IDE performance, new editor inline hints for ranges and chain calls, and more improvements for Kotlin in IntelliJ IDEA 2021.3: A better debugging experience, including inline stack frames, and smart step into.IDE performance improvements, including faster declaration searches.New editor inline hints for ranges and chain calls.New refactorings and im

Kotlin 1.6.0 is now officially released with Stable exhaustive whens, Kover, and new memory manager for Kotlin/Native!

Kotlin 1.5.30 includes many experimental language and standard library features that we are planning to release in Kotlin 1.6.0. Give them a try and share your feedback with us!

Enjoy improved performance, a better coroutines debugging experience, WSL 2 and Run Targets support, and more improvements for Kotlin in IntelliJ IDEA 2021.2: IDE performance improvements, including faster test file analysis and faster rename refactoringBetter debugging experience for the coroutine agentRemote development supportKotlin plugin in the IntelliJ IDEA repositoryOther IDE improvement

Kotlin continues to stay up to date with latest Java features such as dynamic invocations and to provide better interoperability with Java by adding support for Java’s Lombok and JSpecify. We are also continuing our work of making the standard library consistent across platforms, as well as investing in Gradle tooling and the new JS IR backend. Update to Kotlin 1.5.20 This blog post provides

Kotlin 1.5.0 delivers stable language features, the new default JVM IR compiler, improvements to the standard and test libraries, and more.

The newest release of IntelliJ IDEA, version 2021.1, comes with the improved Kotlin plugin. Enjoy an improved developer experience with faster code completion and highlighting, change signatures with better IDE support, benefit from better debugging experience for evaluating properties, and more. Here is what you’ll get by installing the new plugin: Faster code completion and highlighting

Kotlin 1.4.30 is now available. This is the last 1.4 incremental release, so we have lots of new experimental features that we plan to make stable in 1.5.0. We would really appreciate it if you would try them and share your feedback with us. We hope you enjoy testing out all these new updates, and please let us know what you think. What's changed in this release: Language features and compiler T

Kotlin 1.4.20 is here with new experimental features for you to try. Being open to community feedback is one of the Kotlin team’s basic principles, and we need your thoughts about the prototypes of the new features. Give them a try and share your feedback on Slack (get an invite here) or YouTrack. Here are some of the key highlights: Support for new JVM features, like string concatenation via in

Today we’re releasing Kotlin 1.4.0! Over the past years, we’ve been working hard on making Kotlin a programming language that is fun, enjoyable, and productive to work with. To continue our pursuit of this goal with this version of Kotlin, we put a lot of energy and effort into improving the performance and quality of Kotlin and its tooling. We are also excited to announce support for several new language features, including the long-awaited SAM conversions for Kotlin interfaces.