## Core
### Improvements
- Added HTTP API response compression for large non-streaming responses.
- Added the Scout agent for repo research, docs lookup, and dependency-source inspection.
- Added workspace sync so adapter-backed workspaces can be discovered and registered automatically.
- Added an interactive split-footer mode for `opencode run`.
- Simplified TUI keybinding config into a flat keybind format.
- Made duplicate worktree names fall back to the parent directory for clearer labels.
### Bugfixes
- Fixed HTTP API auth responses to match the previous wire format for empty authorize results and share errors.
- Returned structured validation errors from the HTTP API.
- Rejected invalid permission and question IDs in the HTTP API.
- Included auth challenges on typed HTTP API `401` responses.
- Fixed the HTTP API OpenAPI document route.
- Fixed detached sessions so they are claimed by the source project again.
- Forwarded `SIGINT`, `SIGTERM`, and `SIGHUP` correctly when running through the npm shim. (@chubes4)
- Allowed skills without descriptions to load correctly.
- Required auth on effect HTTP API root routes. (@RajvardhanPatil07)
- Kept tool ordering stable so tool lists stop reshuffling between runs.
- Made retry dialogs more specific to the provider and failure reason.
- Fixed Gemini reasoning controls so supported effort levels and small-mode defaults match the model.
- Fixed Anthropic Opus 4.5 reasoning effort options.
- Limited OpenAI deep research models to the reasoning level they actually support.
- Fixed GPT-5 reasoning variants so the exposed effort options match each model family.
## TUI
### Improvements
- Show retrying sessions as active in the project sidebar. (@edemaine)
### Bugfixes
- Fixed the sidebar message shown for language server state. (@Polo123456789)
- Sorted the session picker by full last-updated time instead of day buckets. (@Sleepful)
- Kept longer cleared prompts in draft history so they can be restored.
## Desktop
### Improvements
- Switched desktop updates to silent per-user install flow.
**Thank you to 5 community contributors:**
- @edemaine:
- feat(desktop): working indicator on project sidebar (#26223)
- @RajvardhanPatil07:
- fix(server): require auth for effect root routes (#26361)
- @chubes4:
- fix(cli): forward signals from npm shim (#26259)
- @Sleepful:
- fix(tui): sort session picker by full updated timestamp (#24725)
- @Polo123456789:
- fix(sidebar): fix logic and missleading message #26469 (#26470)