OpenCode 1.18.5

Changelog: v1.18.5

Core

Bugfixes

• Improve Claude adaptive thinking handling across more response shapes.
• Avoid OpenAI Responses phase handling that could break some conversations.
• Preserve grep symlink paths in search results. (@remixz)
• Preserve Mistral reasoning history across turns.
• Stabilize Mistral prompt caching.
• Use the correct prompt cache keys for each SDK.
• Fix MiniMax M3 thinking variant selection.

Desktop

Improvements

• Support the current server terminal transport.
• Support current-server review data in the desktop app.
• Update server discovery flows for current servers.
• Support current-server session actions, including prompts and commands.
• Render current-server session timelines.
• Stream current-server events in the desktop app.
• Detect legacy and current servers so the desktop app can work with both.

Bugfixes

• Restore optimistic timeline updates while responses are still streaming.
• Hide legacy-only features when connected to current servers.
• Preserve inline file mentions when sending prompts to legacy servers.
• Stop auto-accepting config permissions on current servers.
• Keep current servers out of the legacy layout.
• Show plain file contents in file-specific tabs instead of review diffs.
• Keep the prompt input agent toggle in sync.
• Keep paginated session timelines in the right order.
• Restore directory-scoped session status for legacy servers.
• Reload legacy session progress after hydration.

Thank you to 2 community contributors:

• @dleopold:
• fix(app): classify existing web profiles for layout transition (#38117)
• @remixz:
• fix(opencode): preserve grep symlink paths (#38581)