v1.15.12

## Core
### Improvements
- ACP integrations can now send prompts, slash commands, and usage updates through `acp-next`
- Added WebSocket transport for OpenAI responses on supported channels (set OPENCODE_EXPERIMENTAL_WEBSOCKETS=true)

### Bugfixes
- Enabled adaptive reasoning controls for Anthropic Opus 4.7+ models
- Allowed colons in passwords (@neriousy)
- Sped up warm `acp-next` model and config switches
- Improved first-session `acp-next` startup time
- Kept OpenAI WebSocket response timeouts active
- Retried failed OpenAI WebSocket streams before falling back
- Handled `acp-next` permission prompts correctly
- Used the persisted session directory for existing-session requests
- Forwarded remote workspace request bodies correctly
- Supported custom base URLs for OpenAI WebSocket responses (@Tarquinen)

## TUI
### Improvements
- Added a workspace management dialog

### Bugfixes
- Kept session navigation working while prompt modes are open
- Restored the thinking spinner
- Surfaced subagent retry status
- Fixed opening editors from non-Git project paths (@OpeOginni)

## Desktop
### Improvements
- Added a setting to switch tab layouts

### Bugfixes
- Improved the home empty state and fixed V2 font usage
- Fixed tab close buttons not showing reliably

**Thank you to 5 community contributors:**
- @OpeOginni:
  - fix(tui): handle non-git project paths when opening editor (#29180)
- @gotjoshua:
  - docs: fix ts error in math examples (#18244)
- @Tarquinen:
  - fix(openai): support websocket custom base URLs (#29636)
- @24KaratAu:
  - docs: fix grammar in config.mdx (#29683)
- @neriousy:
  - fix(core): allow colons inside passwords (#29576)