Claude Code v2.1.83 adds managed settings fragments, transcript search, and security improvements

New Features and Settings

Claude Code v2.1.83 adds several practical features for team deployments and security:

• managed-settings.d/ drop-in directory alongside managed-settings.json allows separate teams to deploy independent policy fragments that merge alphabetically
• CwdChanged and FileChanged hook events for reactive environment management (e.g., direnv)
• sandbox.failIfUnavailable setting exits with an error when sandbox is enabled but cannot start, instead of running unsandboxed
• disableDeepLinkRegistration setting prevents claude-cli:// protocol handler registration
• CLAUDE_CODE_SUBPROCESS_ENV_SCRUB=1 strips Anthropic and cloud provider credentials from subprocess environments (Bash tool, hooks, MCP stdio servers)
• Transcript search — press / in transcript mode (Ctrl+O) to search, n/N to step through matches
• Ctrl+X Ctrl+E as an alias for opening the external editor (readline-native binding; Ctrl+G still works)
• Pasted images now insert an [Image #N] chip at the cursor for positional reference in prompts
• Agents can now declare initialPrompt in frontmatter to auto-submit a first turn
• chat:killAgents and chat:fastMode are now rebindable via ~/.claude/keybindings.json

Key Fixes and Improvements

The release addresses numerous stability and performance issues:

• Fixed mouse tracking escape sequences leaking to shell prompt after exit
• Fixed Claude Code hanging on exit on macOS
• Fixed screen flashing blank after being idle for a few seconds
• Fixed a hang when diffing very large files with few common lines — diffs now time out after 5 seconds and fall back gracefully
• Fixed a 1–8 second UI freeze on startup when voice input was enabled, caused by eagerly loading the native audio module
• Fixed a startup regression where Claude Code would wait ~3s for claude.ai MCP config fetch before proceeding
• Fixed --mcp-config CLI flag bypassing allowedMcpServers/deniedMcpServers managed policy enforcement
• Fixed claude.ai MCP connectors (Slack, Gmail, etc.) not being available in single-turn --print mode
• Fixed caffeinate process not properly terminating when Claude Code exits, preventing Mac from sleeping
• Fixed memory leak in remote sessions where tool use IDs accumulate indefinitely
• Improved Bedrock SDK cold-start latency by overlapping profile fetch with other boot work
• Improved --resume memory usage and startup latency on large sessions

This release is for developers using Claude Code who need better team policy management, transcript navigation, and security controls for subprocess environments.