Best of JetBrains — April 2026

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   Article

   JetBrains·2w

   The Road to Responsive IntelliJ-Based IDEs

   JetBrains details a multi-year engineering effort to improve UI responsiveness in IntelliJ-based IDEs by moving write actions off the UI thread (EDT). The platform's 25-year-old architecture relied on a single read-write lock tightly coupled to the EDT, causing freezes when expensive write actions (like VFS refresh or PSI rebuilding) blocked the UI. The team introduced background write actions, a new cancelable lock, modality-aware locking, and incremental migration strategies to preserve plugin compatibility. Results show the expected share of UI time spent on write locks dropped from 1.83% to 0.53% between releases 2025.2 and 2025.3. Future work targets eliminating write-intent locking from common interactions like typing.

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2. 2
   Article

   JetBrains·2w

   IntelliJ IDEA 2026.1.1 Is Out!

   IntelliJ IDEA 2026.1.1 is a bug-fix release addressing several issues: WSL Python SDK setup is restored, Emmet works correctly in remote development, Gradle sync no longer fails with a class cast error, WildFly server connection is fixed, WSL 2 JDK detection is resolved, Ant target double-click now runs correctly, Spring project code completion is faster, WebLogic run configuration creation is fixed, and Find and Replace works properly on Enter.

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3. 3
   Article

   JetBrains·2w

   Speeding up interactive rebase in JetBrains IDEs

   JetBrains engineers implemented an in-memory interactive rebase optimization for JetBrains IDEs, reducing execution time from tens of seconds to a few seconds on large repositories like the IntelliJ monorepo. Instead of checking out commits sequentially and updating the working tree and index, the IDE now uses Git plumbing commands (git cat-file, git commit-tree, git merge-tree, git update-ref) to rebuild commit chains entirely in memory. If a merge conflict is detected, it falls back to the standard Git rebase. The optimization covers reword, drop, squash, and extract-to-separate-commit operations. EAP telemetry confirmed consistent improvements across macOS, Windows, and Linux, with ~12% of rebases encountering conflicts that trigger the fallback. The feature ships by default in the 2026.1 release.

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4. 4
   Article

   JetBrains·1w

   Popular Go Web Frameworks: A Practical Guide for Developers

   A data-driven comparison of the most popular Go web frameworks — Gin, Echo, Chi, and Fiber — alongside Go's standard net/http package. Covers adoption statistics from the 2025 Go Developer Survey and JetBrains State of Developer Ecosystem Report, key features, tradeoffs, performance characteristics, net/http compatibility, and code samples for a simple API endpoint in each framework. Includes decision guidance: Gin for familiarity and community, Echo for structured error handling, Chi for stdlib closeness, and Fiber for Express-like ergonomics or extreme performance. Also notes Gorilla's declining but still significant usage and briefly highlights GoLand IDE features for web developers.

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