# Claude Code 2.1.21

Captured: 2026-05-10T16:27:28.325Z

- Added support for full-width (zenkaku) number input from Japanese IME in option selection prompts
- Fixed shell completion cache files being truncated on exit
- Fixed API errors when resuming sessions that were interrupted during tool execution
- Fixed auto-compact triggering too early on models with large output token limits
- Fixed task IDs potentially being reused after deletion
- Fixed file search not working in VS Code extension on Windows
- Improved read/search progress indicators to show "Reading…" while in progress and "Read" when complete
- Improved Claude to prefer file operation tools (Read, Edit, Write) over bash equivalents (cat, sed, awk)
- [VSCode] Added automatic Python virtual environment activation, ensuring `python` and `pip` commands use the correct interpreter (configurable via `claudeCode.usePythonEnvironment` setting)
- [VSCode] Fixed message action buttons having incorrect background colors
