Releases

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.

Today we're happy to present to you the latest version of Kotlin – 1.3.70. This incremental release doesn’t provide any major new features. However, we've tried our best to improve the existing functionality, fix issues, and even add experimental things for you to try. Here are the highlights of Kotlin 1.3.70: New functions and classes for Kotlin collections in the standard library. Various impr

We’re happy to announce the release of Kotlin 1.3.30, a new bug fix and tooling update for Kotlin 1.3. The main areas of focus for this release have been around Kotlin/Native, KAPT performance, as well as improvements for IntelliJ IDEA. As always, we’d like to thank our external contributors. Now let’s dive into the details!

We’re happy to announce the release of Kotlin 1.3.20, a new bug fix and tooling update for Kotlin 1.3. In addition to improvements to the compiler and IDE, this version: Allows running Gradle tasks in parallel within a single project Allows building multiplatform projects via Gradle Kotlin DSL Brings improvements for inline classes Introduces a separate command line tool for Kapt Enables increme