Claude Code 2.1.108

Tuesday, 14 April 20264 new14 fixes6 other

AI summary

Written by AI from the official notes. Check them for exact details.

Claude Code 2.1.108 introduces new features for session management and command invocation, along with numerous bug fixes.

New recap feature provides context when returning to a session.
Model can now discover and invoke built-in slash commands.
Improved error messages for better user guidance.
Reduced memory footprint for file operations.
Fixed multiple bugs affecting session management and commands.

Why it matters: Users of Claude should care for enhanced session handling and improved stability in command execution.

Official notes on github.com

Full release notes24 changes

What's changed

Added ENABLE_PROMPT_CACHING_1H env var to opt into 1-hour prompt cache TTL on API key, Bedrock, Vertex, and Foundry (ENABLE_PROMPT_CACHING_1H_BEDROCK is deprecated but still honored), and FORCE_PROMPT_CACHING_5M 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 CLAUDE_CODE_ENABLE_AWAY_SUMMARY 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 DISABLE_PROMPT_CACHING* environment variables
Fixed paste not working in the /login code prompt (regression in 2.1.105)
Fixed subscribers who set DISABLE_TELEMETRY 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 CLAUDE_ENV_FILE (e.g. ~/.zprofile) ends with a # comment line
Fixed claude --resume losing the session's custom name and color set via /rename
Fixed session titles showing placeholder example text when the first message is a short greeting
Fixed terminal escape codes appearing as garbage text in the prompt input after --teleport
Fixed /feedback retry: pressing Enter to resubmit after a failure now works without first editing the description
Fixed --teleport and --resume precondition errors (e.g. dirty git tree, session not found) exiting silently instead of showing the error message
Fixed Remote Control session titles set in the web UI being overwritten by auto-generated titles after the third message
Fixed --resume truncating sessions when the transcript contained a self-referencing message
Fixed transcript write failures (e.g., disk full) being silently dropped instead of being logged
Fixed diacritical marks (accents, umlauts, cedillas) being dropped from responses when the language setting is configured
Fixed policy-managed plugins never auto-updating when running from a different project than where they were first installed

Full release notes24 changes

What's changed

Added ENABLE_PROMPT_CACHING_1H env var to opt into 1-hour prompt cache TTL on API key, Bedrock, Vertex, and Foundry (ENABLE_PROMPT_CACHING_1H_BEDROCK is deprecated but still honored), and FORCE_PROMPT_CACHING_5M 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 CLAUDE_CODE_ENABLE_AWAY_SUMMARY 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 DISABLE_PROMPT_CACHING* environment variables
Fixed paste not working in the /login code prompt (regression in 2.1.105)
Fixed subscribers who set DISABLE_TELEMETRY 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 CLAUDE_ENV_FILE (e.g. ~/.zprofile) ends with a # comment line
Fixed claude --resume losing the session's custom name and color set via /rename
Fixed session titles showing placeholder example text when the first message is a short greeting
Fixed terminal escape codes appearing as garbage text in the prompt input after --teleport
Fixed /feedback retry: pressing Enter to resubmit after a failure now works without first editing the description
Fixed --teleport and --resume precondition errors (e.g. dirty git tree, session not found) exiting silently instead of showing the error message
Fixed Remote Control session titles set in the web UI being overwritten by auto-generated titles after the third message
Fixed --resume truncating sessions when the transcript contained a self-referencing message
Fixed transcript write failures (e.g., disk full) being silently dropped instead of being logged
Fixed diacritical marks (accents, umlauts, cedillas) being dropped from responses when the language setting is configured
Fixed policy-managed plugins never auto-updating when running from a different project than where they were first installed