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OpenCode v1.18.26

Claude 5 sessions now tolerate stale thinking blocks instead of failing after prompt or tool changes. Bedrock GPT-5.6 models now accept none reasoning effort. Bedrock reasoning and replay handling is…

by @anomalyco · OpenCode · Releases
Originally published on github.com →

Core

Bugfixes

  • Claude 5 sessions now tolerate stale thinking blocks instead of failing after prompt or tool changes.
  • Bedrock GPT-5.6 models now accept none reasoning effort.
  • Bedrock reasoning and replay handling is more reliable. (@pengzh1)
  • Tool call timing now stays accurate when tools update their metadata while still running. (@bartlettroscoe)
  • apply_patch no longer emits an empty move path in permission metadata. (@altendky)

Improvements

  • Azure CLI sign-in now asks for the resource name directly instead of querying Azure management APIs.

Desktop

Bugfixes

  • Session renames now save reliably from the title editor and tab context menu.

Thank you to 3 community contributors:

  • @altendky:
    • fix(opencode): omit empty apply patch move path (#45329)
  • @pengzh1:
    • fix(core): bump @ai-sdk/amazon-bedrock to 4.0.166 for reasoning and replay fixes (#45520)
  • @bartlettroscoe:
    • fix(core): Fix for incorrect time.start reset in tool call logging (#32574) (#32596)
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