Kotlin

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.

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.

A JetBrains Research study analyzing 28M development cycles found Kotlin cycles were about 15%–20% shorter than Java cycles on comparable work.

We are updating the default project structure for Kotlin Multiplatform projects to give modules clearer responsibilities. Read on for all the details.

We’re trying to determine how well AI tools actually work with Kotlin. Take our 10-minute survey for a chance to win USD 50 Amazon Gift Card or six-month JetBrains All Products Pack subscription.

Compose Multiplatform 1.11.0 has been released with improvements to the iOS and web experience and a refreshed approach to UI testing.

Kotlin is introducing new destructuring syntax. See what changes, why it matters, and how migration will work.

The Kotlin Foundation launched a mentorship program that paired experienced open-source maintainers with new Kotlin contributors to help them make their first meaningful contributions, with branded swag and a chance to win a trip to KotlinConf.

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

Learn how to use OpenTelemetry with Kotlin and Spring Boot, and explore the GitHub demo project to see trace IDs in action.

JetBrains has partnered with LinkedIn Learning to offer the Kotlin Professional Certificate. This is a structured learning path that covers the full scope of modern software development – from Kotlin essentials all the way to building full-stack, multiplatform applications for mobile, desktop, web, and backend environments.