- Added OPENCODE_FAKE_VCS flag for VCS testing and updated todo tracking instructions
- Removed temperature setting for Claude models
- Added MCP server support, file diffs, and default slash commands (/init, /compact) in ACP
- Fixed LiteLLM error where tool parameter must be specified
- Removed reasoning effort setting to 'medium' for gpt-5-pro model
- Added session.started event that triggers when a new session is created
- Fixed build script to work cross-platform
- Removed claude-haiku-4.5 from default priority for GitHub Copilot session title generation