Claude Code version 2.1.243 introduces several configuration and usability enhancements alongside numerous bug fixes. Key additions include a new Loops breakdown in the /usage command to monitor runaway tasks, a modelPicker setting for curating the model selection list, and a keyless sign-in option via the Anthropic Console.
- Added Loops breakdown to /usage showing per-loop run counts and token usage.
- Introduced modelPicker setting to curate the /model picker with an ordered, labeled list of models.
- Added promptCacheTtl and subagentPromptCacheTtl settings for granular cache control.
- Implemented keyless sign-in under /login for organizations that do not allow API keys.
- Improved startup time by preventing sandbox and MCP bring-up from blocking the first frame.
- Reduced native binary size to approximately 75 MB on Linux x64 using zstd compression.
- Fixed remote MCP server recovery in non-interactive sessions and various UI rendering issues.
These changes provide better visibility into loop tasks, more control over model selection and caching, and improved performance through reduced memory usage and faster startup times.