Claude Code v2.1.108
Claude Code v2.1.108 was released on .
Summary
- Added ENABLEPROMPTCACHING1H env var to opt into 1-hour prompt cache TTL on API key, Bedrock, Vertex, and Foundry (ENABLEPROMPTCACHING1HBEDROCK is deprecated but still honored), and FORCEPROMPTCAC...
Release Context
- This was the 83rd Claude Code release of 2026 tracked by Havoptic.
- It shipped 1 day after Claude Code v2.1.107 (April 14, 2026).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
- Devin Desktop v2.0.61 (April 17, 2026)
- GitHub Copilot CLI v1.0.31 (April 16, 2026)
- GitHub Copilot CLI v1.0.30 (April 16, 2026)
- GitHub Copilot CLI v1.0.29 (April 16, 2026)
- GitHub Copilot CLI v1.0.28 (April 16, 2026)
Compare Claude Code: vs OpenAI Codex CLI · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI
Release Notes
- Added ENABLEPROMPTCACHING1H env var to opt into 1-hour prompt cache TTL on API key, Bedrock, Vertex, and Foundry (ENABLEPROMPTCACHING1HBEDROCK is deprecated but still honored), and FORCEPROMPTCACHING5M to force 5-minute TTL
- Added recap feature to provide context when returning to a session, configurable in /config and manually invocable with /recap; force with CLAUDECODEENABLEAWAYSUMMARY if telemetry disabled.
- The model can now discover and invoke built-in slash commands like /init, /review, and /security-review via the Skill tool
- /undo is now an alias for /rewind
- Improved /model to warn before switching models mid-conversation, since the next response re-reads the full history uncached
- Improved /resume picker to default to sessions from the current directory; press Ctrl+A to show all projects
- Improved error messages: server rate limits are now distinguished from plan usage limits; 5xx/529 errors show a link to status.claude.com; unknown slash commands suggest the closest match
- Reduced memory footprint for file reads, edits, and syntax highlighting by loading language grammars on demand
- Added "verbose" indicator when viewing the detailed transcript (Ctrl+O)
- Added a warning at startup when prompt caching is disabled via DISABLEPROMPTCACHING environment variables
- Fixed paste not working in the /login code prompt (regression in 2.1.105)
- Fixed subscribers who set DISABLETELEMETRY falling back to 5-minute prompt cache TTL instead of 1 hour
- Fixed Agent tool prompting for permission in auto mode when the safety classifier's transcript exceeded its context window
- Fixed Bash tool producing no output when CLAUDEENVFILE (e.g. ~/.
Other Recent Claude Code Releases
- v2.1.215 (July 19, 2026)
- v2.1.214 (July 18, 2026)
- v2.1.212 (July 16, 2026)
- v2.1.211 (July 15, 2026)
- v2.1.210 (July 14, 2026)
All Claude Code releases · All AI coding tool releases on Havoptic