anthropics/claude-code v2.1.121

on GitHub

What's changed

• Added alwaysLoad option to MCP server config — when true, all tools from that server skip tool-search deferral and are always available
• Added claude plugin prune to remove orphaned auto-installed plugin dependencies; plugin uninstall --prune cascades
• Added a type-to-filter search box to /skills so you can find a skill in long lists without scrolling
• PostToolUse hooks can now replace tool output for all tools via hookSpecificOutput.updatedToolOutput (previously MCP-only)
• Fullscreen mode: typing into the prompt no longer jumps scroll back to the bottom after you've scrolled up to read earlier output
• Dialogs that overflow the terminal are now scrollable with arrow keys, PgUp/PgDn, home/end, and mouse wheel in both fullscreen and non-fullscreen modes
• Clicking any line of a long URL that wraps across rows in fullscreen mode now opens the full URL
• SDK and claude -p: CLAUDE_CODE_FORK_SUBAGENT=1 now works in non-interactive sessions
• --dangerously-skip-permissions no longer prompts for writes to .claude/skills/, .claude/agents/, and .claude/commands/
• /terminal-setup now enables iTerm2's "Applications in terminal may access clipboard" setting so /copy works, including from tmux
• MCP servers that hit a transient error during startup now auto-retry up to 3 times instead of staying disconnected
• The terminal tab session title is now generated in your configured language setting
• Claude.ai connectors with the same upstream URL are now deduplicated instead of appearing as duplicates
• Vertex AI: support X.509 certificate-based Workload Identity Federation (mTLS ADC)
• Faster startup after upgrading: removed the Recent Activity panel from the release-notes splash
• LSP diagnostic summaries now expand on click/ctrl+o and show the expand hint
• SDK: mcp_authenticate now supports redirectUri for custom scheme completion and claude.ai connectors
• OpenTelemetry: added stop_reason, gen_ai.response.finish_reasons, and user_system_prompt (gated behind OTEL_LOG_USER_PROMPTS) to LLM request spans
• [VSCode] Voice dictation now respects the accessibility.voice.speechLanguage setting when no Claude Code language is configured
• [VSCode] /context now opens a native token usage dialog
• Fixed unbounded memory growth (multi-GB RSS) when processing many images in a session
• Fixed /usage leaking up to ~2GB of memory on machines with large transcript histories
• Fixed memory leak when long-running tools fail to emit a clear progress event
• Fixed Bash tool becoming permanently unusable when the directory Claude was started in is deleted or moved mid-session
• Fixed --resume crashing on startup in external builds
• Fixed --resume failing on large sessions when a transcript line was corrupted by an unclean shutdown — the corrupt line is now skipped
• Fixed thinking.type.enabled is not supported error when using Bedrock application inference profile ARNs
• Fixed Microsoft 365 MCP OAuth failing with duplicate or unsupported prompt parameter
• Fixed scrollback duplication when pressing Ctrl+L or triggering a redraw in non-fullscreen mode on tmux, GNOME Terminal, Windows Terminal, and Konsole
• Fixed claude.ai MCP connectors silently disappearing when the connector-list fetch hits a transient auth error at startup
• Fixed "Always allow" rules for built-in tools in remote sessions not surviving worker restarts
• Fixed NO_PROXY not being respected for all HTTP clients when set via managed-settings.json under the native build
• Fixed managed settings approval prompt exiting the session even when accepted — now applies settings and continues
• Fixed /usage returning "rate limited" after a stale OAuth token — now refreshes automatically
• Fixed invalid legacy enum values in settings.json invalidating the entire settings file
• Fixed /usage dialog content being clipped when no-flicker mode is off
• Fixed /focus showing "Unknown command" when the fullscreen renderer is off — now explains how to enable it
• Fixed embedded grep/find/rg shell wrappers failing when the running binary is deleted mid-session — now falls back to installed tools
• Reduced peak file descriptor usage during find in the Bash tool on large directory trees