• 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