IntelliJ IDEA 2026.1.3

JetBrains has released IntelliJ IDEA 2026.1.3, the latest stable update to its flagship Java and Kotlin IDE. Released on June 4, 2026, this point release focuses on squashing usability bugs and polishing the 2026.1 experience rather than introducing new features.

What Changed

The update addresses several pain points reported since the 2026.1.2 release, with fixes spanning the terminal emulator, Markdown preview, database tools, and WSL integration.

• Terminal cursor in tmux — A longstanding annoyance where the cursor would render above the current line inside tmux sessions has been fixed. Cursor positioning now behaves correctly in multiplexer environments.
• Markdown image previews — The built-in Markdown preview panel now resolves relative image paths correctly, so screenshots and diagrams embedded in Markdown documentation render as expected.
• Database tool window colors — Color coding in the Database tool window, which had broken after the 2026.1 theme refresh, has been restored.
• WSL shell improvements — Several issues affecting Windows Subsystem for Linux shell integration have been resolved, including PATH resolution and file watching reliability.
• General stability — Various crash fixes across the IDE, particularly around the AI Assistant plugin, Gradle imports, and the new agent framework.

Why It Matters

While 2026.1.3 doesnt ship headline features, the cumulative effect of these bug fixes meaningfully improves day-to-day development comfort — especially for tmux power users, WSL developers, and teams using embedded Markdown documentation.

Whats Next

JetBrains is now in active development on IntelliJ IDEA 2026.2, expected in late summer 2026. The EAP builds are already previewing AI agent enhancements and deeper Kubernetes integration.

The 2026.1.3 update is available via the Toolbox App, in-IDE updater, or direct download from the JetBrains website.