{"version":"0.56.0","date":"2026-01-27","dateFormatted":"January 27, 2026","url":"https://docs.factory.ai/changelog/release-notes#v0.56.0","jsonUrl":"https://docs.factory.ai/changelog/releases/0.56.0.json","summary":"ACP daemon mode, lazy session loading, and model updates","surfaces":["cli"],"changes":[{"type":"feature","surface":"cli","title":"ACP daemon mode"},{"type":"feature","surface":"cli","title":"Lazy session loading"},{"type":"feature","surface":"cli","title":"Dynamic default settings"},{"type":"improvement","surface":"cli","title":"Parallel context gathering"},{"type":"fix","surface":"cli","title":"MCP tool schema isolation"},{"type":"fix","surface":"cli","title":"Symlinked skill directories"},{"type":"fix","surface":"cli","title":"Windows spec mode UI"},{"type":"fix","surface":"cli","title":"AskUser parallel tool calling"},{"type":"fix","surface":"cli","title":"Skills menu rendering"},{"type":"fix","surface":"cli","title":"OpenAI custom model routing"},{"type":"fix","surface":"cli","title":"Linear remote delegation"},{"type":"fix","surface":"cli","title":"Authentication atomic writes"},{"type":"fix","surface":"cli","title":"ACP session loading"}],"security":[],"deprecations":[],"contentText":"New features\n\n- ACP daemon mode - New daemon mode for Agent Control Protocol enabling persistent background sessions with improved session loading\n- Lazy session loading - Sessions now load messages lazily for faster startup when resuming large sessions\n- Dynamic default settings - Settings now support dynamic defaults for better configuration flexibility\n\nImprovements\n\n- Parallel context gathering - Missions workers now encouraged to read all context files in parallel for faster startup\n\nBug fixes\n\n- MCP tool schema isolation - Broken tool schemas in one MCP server no longer affect other MCP servers\n- Symlinked skill directories - Fixed discovery of symlinked skill directories in .factory/skills\n- Windows spec mode UI - Fixed spec mode UI and autonomy mode text rendering on Windows\n- AskUser parallel tool calling - Fixed parallel tool calling with AskUser tool\n- Skills menu rendering - Fixed skills menu to always render correctly\n- OpenAI custom model routing - Fixed routing bug for OpenAI custom models\n- Linear remote delegation - Fixed Linear remote delegation issues\n- Authentication atomic writes - Auth writes now use atomic operations to prevent corruption\n- ACP session loading - Fixed multiple issues with ACP session loading"}