The JetBrains Blog

A fresh edition of Java Annotated Monthly has landed! The world of software development keeps moving at full speed, and this month's selection helps you keep up without drowning in tabs. Inside, you'll find hand-picked articles, podcasts, videos, and thought-provoking reads covering Java, 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.

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

April flew by. The pace of tech development didn’t slow, and the flow of news and knowledge didn’t either. This month, Emily Bache joins us to share some sharp finds about AI agents and test-driven development. Java stays busy with fresh updates and practical tips, and Kotlin keeps pushing forwar…

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

This post was written together with Thorben Janssen, who has more than 20 years of experience with JPA and Hibernate and is the author of “Hibernate Tips: More than 70 Solutions to Common Hibernate Problems” and the JPA newsletter. Spring Data JDBC provides a simple and predictable persisten…

This post was written together with Thorben Janssen, who has more than 20 years of experience with JPA and Hibernate and is the author of “Hibernate Tips: More than 70 Solutions to Common Hibernate Problems” and the JPA newsletter. Spring Data JPA is based on the Jakarta Persistence specific…

Does the choice of programming language affect how quickly developers deliver code? This article offers data-driven insights.

IntelliJ IDEA introduces a set of new inspections for the Kotlin coroutines library. Read the article to learn more.

Easily track LLM usage, tool calls, and application flow in your AI-powered Kotlin projects. Add OpenTelemetry-backed observability with minimal code changes.

This new extension lets you convert individual Java files to Kotlin with a simple context menu action in Visual Studio Code.

Previously in this series: Building AI Agents in Kotlin – Part 1: A Minimal Coding Agent Building AI Agents in Kotlin – Part 2: A Deeper Dive Into Tools Building AI Agents in Kotlin – Part 3: Under Observation Building AI Agents in Kotlin – Part 4: Delegation and Sub-Agent Agents ev…