Just one month ago, we released Jetpack Compose for Desktop Milestone 1, the first public iteration of our modern declarative UI framework. We were delighted about how the Kotlin community has embraced Compose for Desktop. It was awe-inspiring to see people bring their Android apps to the desktop, re-implement the user interfaces of famous applications, and bring entirely new experiences to life with Compose for Desktop. Visit the Compose for Desktop landing page Since then, we have been hard at work to bring you the next version. Today we’re publishing Compose for Desktop Milestone 2, dedica

Today, we are excited to present the first milestone release of Jetpack Compose for Desktop, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable. We invite you to take this technology preview out for a test drive, and we eagerly await your feedback! Visit the Compose for Desktop landing page Delightful desktop UI development Compose for Desktop provides a declarative and reactive approach to creating user interfaces with Kotlin, with an API inspired by other modern frameworks like React and Flutter. At its core, Compose for Desktop

In Kotlin 1.4, we’re adding new experimental ways for generating default methods in interfaces in the bytecode for the Java 8 target. Later, we’re going to be deprecating the `@JvmDefault` annotation in favor of generating all the method bodies in interfaces directly when the code is compiled in a special mode. Read more details of how it currently works and what will change, below. In Kotlin, you can define methods with bodies in interfaces. It works if your code runs on Java 6 or 7, even before support for the default methods appeared on the JVM. interface Alien { fun spea

Time flies, and today we want to present a few more powerful features of Kotlin 1.4 for your preview. Learn what Kotlin 1.4-M2 has in store, try it, and enjoy its features before they are officially released in Kotlin 1.4. We thank all of you who tried our first preview of Kotlin 1.4, shared your feedback, and helped make Kotlin better! Also many thanks to those who have already tried Kotlin 1.4-M2’s standard library improvements announced in our previous post. In this post, we'll highlight the new features and key improvements available in 1.4-M2: Support for sharing code in several ta

We keep working on Kotlin 1.4 and the next preview 1.4-M2 is just around the corner. Right now we’re ready to unveil some improvements from this preview; in this post, we’ll get you acquainted with the standard library changes. Here are some key improvements in the standard library in 1.4-M2: Changes to the existing API like updating signatures and introducing new constants More functions in the common library New functions for Arrays and Collections Property delegation improvements Even though Kotlin 1.4-M2 hasn’t been released yet, we’ve deployed its early version to the Kotlin playground

We're happy to announce the second milestone release for Kotlin 1.2. The primary focus of this release is concerned with stability and bugfixes in Kotlin compiler and tooling as well as improvements of Kotlin standard library. It also includes many of the tooling features available in the upcoming release of Kotlin 1.1.4. We appreciate your feedback regarding the new features or any problems that you may run into with this release. The complete changelog since 1.2 M1 can be found here with some major changes listed below. (more…)

We're excited to announce the start of the early access program for Kotlin 1.2: today its first milestone release 1.2-M1 is out. This release enables by default new language features that were previously available in 1.1.x releases under experimental 1.2 language version setting. Also in the standard library you can preview the new API. The complete though not so big list of changes in this release can be found in the changelog. (more…)

We are glad to present you the fourth milestone of the upcoming Kotlin release. We're wrapping up the development of the version 1.1, with the final release planned for Q1 2017. Most features are already in decent shape, so it is a good time to try it and give us your feedback. We will appreciate it a lot! As with other milestone releases, we give no backwards compatibility guarantees for new language and library features. Anything introduced in milestone releases of 1.1 is subject to change before the final 1.1 release. Please do share your feedback regarding the new features or any problem

We are pleased to announce the third milestone of the upcoming Kotlin 1.1. This release brings new language features as well as improvements and fixes in the JavaScript backend, compiler and IDEA plugin. The new release also includes all tooling features introduced in Kotlin 1.0.5, and is compatible with IntelliJ IDEA 2016.3 EAP and Android Studio 2.2 and 2.3. As with other milestone releases, we give no backwards compatibility guarantees for new language and library features. Anything introduced in milestone releases of 1.1 is subject to change before the final 1.1 release. Please do share