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OpenCode v1.18.13 Changelog

What changed in OpenCode CLI v1.18.13, released 2026-08-04 โ€” explained in plain English.

TLDR
  • The app is now available in more languages with better translation rules.
  • Right-to-left text layouts (like Arabic or Hebrew) got a lot of visual fixes.
  • The app won't freeze up while formatting long messages anymore.
  • Untitled work sessions now get automatic names so you don't lose track of them.

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This update is all about making the software feel more welcoming and usable for people around the world. It matters most to international users who speak different languages or use right-to-left scripts, but everyone will appreciate the smoother, less glitchy experience.

What's new

  • More languages: The desktop app now supports more languages and translates things like native menus, update pop-ups, and help guides.
  • Smarter translated counts: The app now understands plural rules in different languages, so translated text with numbers (like "3 items") reads correctly.
  • New setup guide: A community member added instructions for connecting to a tool called "Poolside."

Improvements

  • Early right-to-left support: The app is starting to properly support right-to-left layouts (used in languages like Arabic or Hebrew) across the main view and menus.
  • Faster message formatting: The app now processes markdown (the formatting code used to make text bold, add lists, or create links) in the background. This keeps the app from freezing or lagging while it draws messages on your screen.

Fixes

  • GitHub review details: When looking at GitHub pull request reviews (code changes submitted by teammates), the app now correctly shows the pull request number and web link so you know exactly what you're looking at.
  • Right-to-left layout glitches: Fixed several visual bugs for right-to-left languages. Things like resizing windows, opening side panels (drawers), and clicking the title bar used to act weirdly, but now they work right.
  • Right-to-left icons: Fixed shared visual elements in right-to-left mode, like making sure directional arrows point the correct way and side panels pop out from the correct side of the screen.
  • Blank session names: If you started a work session without giving it a title, it used to just look blank. Now, the app automatically makes up a name for it so you can easily find it later.

Breaking changes

No breaking changes in this release.

How to upgrade

Update to OpenCode v1.18.13 by running:

npm install -g opencode-ai

This is our plain-language summary. Read the complete, official notes on the OpenCode official changelog โ†—.

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