Kotlin

A few years back, the Kotlin team figured it was time their programming language had a mascot – something fun and friendly to make developers feel more at home. After all, so many other programming languages have their own characters – Gofer, elePHPant, Dart’s Dash, or Rust’s Ferris, for example. …

We’re releasing an open benchmark for evaluating AI coding agents on real-world Kotlin tasks. Compare agents, inspect the methodology, and see the results on the leaderboard.

KotlinConf 2026 marked a milestone for the Kotlin community: the very first Golden Kodee Community Awards. The awards recognize the individuals and communities whose passion and dedication help the Kotlin ecosystem thrive. From creating educational content and building engaging online communities…

Kotlin support is now available in BlueJ 6.0, helping educators teach introductory object-oriented programming with less boilerplate and ready-to-use classroom materials.

Golden Kodee finalists are out. Explore the latest Kotlin releases, new learning resources, JVM updates, and tools shaping the Kotlin ecosystem.

Starting from IntelliJ IDEA 2026.2, JetBrains will sunset Kotlin Notebook as a product and will no longer maintain it.

Amper 0.11.0 is out, and has evolved into the Kotlin Toolchain! It is now Alpha, and brings a ton of improvements with it.

The Kotlin 2.4.0 release is out! This release brings new language features, support for Swift packages as dependencies, updates to Swift export, and more. Take a look!

Koog 1.0 is out! JetBrains’ AI agent framework for Kotlin and Java now features a stable core with a 1-year API stability guarantee for production backends.

At KotlinConf’26, the JetBrains team and industry partners shared how Kotlin continues to evolve for developers at every scale.

Starting with Kotlin 2.4, the Kotlin standard library now includes an 18-month security support policy, with security fixes backported across active release lines.

The Kotlin by JetBrains extension for VS Code is now available in Alpha. Install the extension, try it out on a Kotlin project, and share your feedback.