The JetBrains Blog

RustRover and VS Code with rust-analyzer can handle almost the same Rust development tasks, but they organize them differently. This objective comparison looks at code analysis, Cargo, testing, debugging, AI tools, and what switching to RustRover involves.

What does it take to build rocket engine testing software? Synnax’s Emiliano Bonilla on launches gone wrong and building a programming language from scratch.

Kotlin 2.5.0 introduces experimental companion blocks and extensions. Learn what they unlock, how to enable them, and what it means for companion objects.

The State of Kotlin in 2026 report combines data from JetBrains research with independent industry data and real-world adoption evidence.

Testing applications before release alone is no longer enough when it comes to quality assurance for modern software development. It needs a more dynamic approach that makes QA a part of the ongoing process. According to the 2025 Stack Overflow Developer Survey, 84% of developers use or plan to u…

Agentic workflows used to live on one developer's laptop. With Air Teams, you configure a workflow once, and the whole team can run, validate, and improve it.

Rider 2026.2.3 brings AI performance analysis to the Monitoring tool window and fixes an issue with the AI Agent Setup widget on Windows. You can update directly from the IDE, through the Toolbox App, or by downloading the latest version from our website. AI performance insights from the Monito…

The current compilation approach to Kotlin Multiplatform projects works, but sometimes can lead to unexpected or hard-to-predict behavior. For example: The IDE analysis disagrees with the compiler on an overload, type inference, or whether the code should compile at all – with the IDE being stri…

A year ago, we introduced the first wave of PhpStorm’s open-source sponsorships. We truly believe in the power of open source and the importance of it to the PHP community, and so we want to do our bit, too.  Each year, we pick five open-source projects to sponsor for a whole year. Our goal …

In this article, we share how we approached designing and building the new TeamCity integration for Kotlin Multiplatform.

What happens before an engineer gets paged? Prasun Kumar of Oppex AI on the “chaos monkey” that trains his agents and 25 years with IntelliJ IDEA.

100 Exercises to Learn Rust is our adaptation of Mainmatter's course of the same name and it has just received its biggest update!