Claude Code v2.1.49
Summary
- Added --worktree (-w) flag to start Claude in an isolated git worktree - Subagents support isolation: "worktree" for working in a temporary git worktree - Added Ctrl+F keybinding to kill backgrou...
Release Notes
- Added --worktree (-w) flag to start Claude in an isolated git worktree - Subagents support isolation: "worktree" for working in a temporary git worktree - Added Ctrl+F keybinding to kill background agents (two-press confirmation) - Agent definitions support background: true to always run as a background task - Plugins can ship settings.json for default configuration - Fixed file-not-found errors to suggest corrected paths when the model drops the repo folder - Fixed Ctrl+C and ESC being silently ignored when background agents are running and the main thread is idle. Pressing twice within 3 seconds now kills all background agents. - Fixed prompt suggestion cache regression that reduced cache hit rates. - Fixed plugin enable and plugin disable to auto-detect the correct scope when --scope is not specified, instead of always defaulting to user scope - Simple mode (CLAUDECODESIMPLE) now includes the file edit tool in addition to the Bash tool, allowing direct file editing in simple mode. - Permission suggestions are now populated when safety checks trigger an ask response, enabling SDK consumers to display permission options - Sonnet 4.5 with 1M context is being removed from the Max plan in favor of our frontier Sonnet 4.6 model, which now has 1M context. Please switch in /model. - Fixed verbose mode not updating thinking block display when toggled via /config — memo comparators now correctly detect verbose changes - Fixed unbounded WASM memory growth during long sessions by periodically resetting the tree-sitter parser - Fixed potential rendering issues caused by stale yoga layout references - Improved performance in non-interactive mode (-p) by skipping unnecessary API calls during startup - Improved performance by caching authentication failures for HTTP and SSE MCP servers, avoiding repeated connection attempts to servers requiring auth - Fixed unbounded memory growth during long-running sessions caused by Yoga WASM linear memory never shrinking - SDK model info n