Kotlin

The countdown to KotlinConf 2025 has officially begun, and we're excited to announce that tickets are now on sale for this premier event, which will take place from May 21–23, 2025, in Copenhagen, Denmark! Organized by JetBrains, this is the largest Kotlin event in the world. Starting today, you can secure your spot at KotlinConf 2025, with tickets available while supplies last.

KotlinConf is bringing the Kotlin community together for the fifth time, from May 22 to 24, 2024, at the Bella Center in Copenhagen, Denmark!

New experimental functions for JVM, Improved kotlin-reflect performance, New -Xdebug compiler option, and more.

Kotlin Multiplatform Mobile – a technology that allows developers to share the logic of iOS and Android apps – is now in Beta and is on track to becoming Stable!

Kotlin 1.7.20 has been released! Highlights include: K2 support for several new plugins; preview of the ..< operator for open-ended ranges; K/N memory manager enabled by default; inline classes with generic underlying types (experimental). Learn more!

KotlinConf 回来了！ 我们很高兴宣布这个消息，实在是迫不期待了！ 🌷 下一届 KotlinConf 将于 2023 年 4 月 12 日至 14 日在阿姆斯特丹线下举行。 我们终于可以再次聚在一起，分享 Kotlin 的精彩之处了。 立即注册，加入 Kotlin 社区的年度盛会。 将有研讨会、演讲，并且保证充满乐趣！ 抓紧时间购买门票，以免售罄！ 购买门票 (more…)…

We’re happy – no, strike that! – we’re thrilled, ecstatic, and overjoyed to announce that KotlinConf is back! 🌷 The next KotlinConf will take place in person in Amsterdam on April 12–14, 2023. Finally we’ll be able to get together again and share the exciting things going on with Kotlin.&…

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.

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!

The 1.5.30 release is approaching, and now we’re presenting the release candidate with the updated opt-in requirements, Kotlin/JS IR backend in Beta, support for Java toolchains in the Gradle plugin, improvements to the Regex and Duration API in the standard library, and more. Try it and report any …