OpenCode v1.18.4

OpenCode v1.18.4 was released on .

Summary

Core Improvements - Use adaptive thinking controls for Kimi models on Anthropic-compatible providers, with summarized reasoning output by default. (@chouqin) Bugfixes - Reduce OpenAI provider heade...

Release Context

  • This was the 165th OpenCode release of 2026 tracked by Havoptic.
  • It shipped 4 days after OpenCode v1.18.3 (July 16, 2026).

Shipped around the same time

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Release Notes

Core Improvements - Use adaptive thinking controls for Kimi models on Anthropic-compatible providers, with summarized reasoning output by default. (@chouqin) Bugfixes - Reduce OpenAI provider header timeouts during slow connection setup. - Respect provider-defined reasoning options instead of falling back to the wrong reasoning controls. - Restore Azure Cognitive Services endpoint support for Azure-hosted models. Desktop Improvements - Sync the embedded terminal theme with the app theme. - Improve the review panel so open file tabs can stay aligned with the current diff view. - Rewrite the v2 prompt input for more reliable command, context, shell, attachment, and history interactions. - Improve review panel resizing and sticky controls. Bugfixes - Preserve command drafts in the command menu. - Avoid session view failures when message parent links are missing. - Prevent sending empty prompt text parts. - Restore model variant selection accessibility. - Show keybind tooltips on prompt input controls. (@ProdigyRahul) - Deduplicate repeated file entries in diff summaries. - Prevent recovery window handling from touching destroyed windows. Thank you to 3 community contributors: - @jerome-benoit: - fix(nix): relax Bun version check for desktop build (36767) - fix(nix): restore desktop integration (37197) - @ProdigyRahul: - fix(app): show keybind tooltips on prompt input controls (37824) - @chouqin: - feat(opencode): use adaptive thinking effort for kimi family on anthr… (37696)

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