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,…

We’ve just released IntelliJ IDEA 2026.1.3. You can update to this version from inside the IDE, using the Toolbox App, or using snaps if you are a Ubuntu user. You can also download it from our website. The latest update brings the following improvements: In tmux, the terminal cursor is no lo…

Some plugin code follows this pattern: Save open documents. Get a file or directory path. Pass that path to something outside the IDE, such as a formatter, linter, compiler, VCS command, language server, or custom CLI tool. Historically, it was reasonable to assume that once the save f…

IntelliJ IDEA 2025.3.6 is now available with the latest Oracle critical patch update for Java 21. The update includes the corresponding JetBrains Runtime changes and fixes the issue, providing improved reliability and security. You can update to this version from inside the IDE, using the Toolbox…

RustWeek 2026 brought more than 900 Rust developers, educators, and maintainers to Utrecht, Netherlands, for a few days of talks, hallway conversations, community meetups, hackathons, and workshops about all things Rust. As a Gold sponsor for the third year in a row, the RustRover team joined the…

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!

WPF Hot Reload is now available in Rider, starting with the 2026.2 EAP 2 build. You can edit your XAML while your app is running under the debugger and see the changes immediately, with no rebuild, no restart, and no losing your place in the application. Together with the C# Hot Reload support that'…

Toolbox App 3.5 focuses on making daily work smoother and managed development environments easier to monitor. The app now supports interface zooming with familiar shortcuts, provides OpenTelemetry metrics for enterprise remote development connections, and handles several long-standing reliability is…

Let's compare the leading agentic AI frameworks in 2026 and explore what each framework does best – click here to find the right framework for your project.

The moment a plugin needs account data, a simple API call turns into an authentication problem. The bad shortcut is familiar: ask the user to create a personal access token (PAT), make them paste it into settings, and hope it never leaks. For a JetBrains IDE plugin, use this flow instead: the use…

Trained from scratch and designed for practical deployment, Mellum2 is built for routing, Q&A, sub-agents, and private AI use in software engineering systems. Today, we’re open-sourcing Mellum2, a 12B model engineered to solve the hardest parts of production AI: latency, throughput, and cost.…

Most TypeScript projects already run ESLint with @typescript-eslint. That covers a lot: explicit any, floating promises, non-null assertions, and more. If your linting setup is solid, you're catching the obvious issues in the editor before code review. ESLint rules can't produce cross-file findin…