Claude Code Changelog

Claude Code v2.1.118

Thu, 23 Apr 2026 00:00:00 GMT

Vim visual mode (v) and visual-line mode (V) with selection, operators, and visual feedback
/usage replaces /cost and /stats — both old commands remain as shortcuts that open the right tab
/theme — create and switch named custom themes; plugins can also ship themes via a themes/ directory
Hooks can now invoke MCP tools directly via type:mcp_tool
DISABLE_UPDATES env var — blocks all update paths including manual claude update (stricter than DISABLE_AUTOUPDATER)
WSL inherits Windows-side managed settings via the wslInheritsWindowsSettings policy key
Auto mode — include "$defaults" in autoMode.allow/soft_deny/environment to add custom rules alongside built-ins

Claude Code v2.1.117

Wed, 22 Apr 2026 00:00:00 GMT

Forked subagents now enabled on external builds via CLAUDE_CODE_FORK_SUBAGENT=1
/model selections persist across restarts even when a project pins a different model
Default effort for Pro/Max subscribers on Opus 4.6 and Sonnet 4.6 is now high (was medium)
Native builds on macOS/Linux replace Glob/Grep tools with embedded bfs and ugrep via Bash — faster searches
/resume now offers to summarize stale large sessions before re-reading them

Claude Code v2.1.116

Mon, 20 Apr 2026 00:00:00 GMT

/resume on large sessions is up to 67% faster (40MB+ sessions)
Thinking spinner shows inline progress (still thinking, thinking more, almost done thinking)
/config search now matches option values (e.g. searching "vim" finds Editor mode setting)
/doctor can now be opened while Claude is responding
Bash tool surfaces a hint when gh commands hit GitHub API rate limits

Claude Code v2.1.113

Fri, 17 Apr 2026 00:00:00 GMT

CLI now spawns a native Claude Code binary instead of bundled JavaScript
sandbox.network.deniedDomains setting — block specific domains even when a wildcard allowedDomains would permit them
/loop improved — Esc cancels pending wakeups; wakeup label now says "Claude resuming /loop wakeup"
/ultrareview improved — faster launch with parallelized checks, diffstat in launch dialog
Bash tool security — deny rules now match commands wrapped in env/sudo/watch/ionice/setsid wrappers
Bash(find:*) allow rules no longer auto-approve find -exec/-delete

Claude Code v2.1.111

Thu, 16 Apr 2026 00:00:00 GMT

Claude Opus 4.7 xhigh effort level — between high and max, available via /effort and --effort
Auto mode now available for Max subscribers on Opus 4.7
/effort opens an interactive slider with arrow-key navigation when called without arguments
Added "Auto (match terminal)" theme option matching dark/light terminal mode
/less-permission-prompts — scans transcripts and proposes a prioritized allowlist for settings.json
/ultrareview added — comprehensive cloud code review via parallel multi-agent analysis
Ctrl+U now clears the entire input buffer; Ctrl+Y restores it
Plan files now named after your prompt (e.g. fix-auth-race-snug-otter.md) instead of random words

Claude Code v2.1.110

Wed, 15 Apr 2026 00:00:00 GMT

/tui command and tui setting — switch to flicker-free rendering in the same conversation
Push notification tool — Claude can send mobile push notifications via Remote Control
/focus command — toggle focus view (Ctrl+O now only toggles verbose transcript)
autoScrollEnabled config — disable auto-scroll in fullscreen mode
--resume/--continue now resurrects unexpired scheduled tasks
Session recap enabled for Bedrock, Vertex, Foundry, and DISABLE_TELEMETRY users

Claude Code v2.1.108

Tue, 14 Apr 2026 00:00:00 GMT

ENABLE_PROMPT_CACHING_1H — opt into 1-hour prompt cache TTL on API key, Bedrock, Vertex, Foundry
FORCE_PROMPT_CACHING_5M — force 5-minute TTL
/recap command — provides context when returning to a session; configurable in /config
CLAUDE_CODE_ENABLE_AWAY_SUMMARY — force recap when telemetry is disabled
/undo is now an alias for /rewind
Model can now discover and invoke built-in slash commands like /init, /review via the Skill tool

Claude Code v2.1.105

Mon, 13 Apr 2026 00:00:00 GMT

EnterWorktree tool now accepts a path parameter to switch into an existing worktree
PreCompact hook support — hooks can block compaction by exiting with code 2 or returning decision:block
Background monitor support for plugins via a top-level monitors manifest key
/proactive is now an alias for /loop
Stalled API streams now abort after 5 minutes of no data and retry non-streaming
/doctor improved with status icons; press f to have Claude fix reported issues

Claude Code v2.1.101

Fri, 10 Apr 2026 00:00:00 GMT

/team-onboarding command — generates a teammate ramp-up guide from your Claude Code usage
OS CA certificate store trusted by default — enterprise TLS proxies work without extra setup (CLAUDE_CODE_CERT_STORE=bundled to use only bundled CAs)
Monitor tool added — stream events from background scripts
--exclude-dynamic-system-prompt-sections flag for improved cross-user prompt caching
workspace.git_worktree in status line JSON — set whenever inside a linked git worktree
refreshInterval status line setting — re-run the status line command every N seconds

Claude Code v2.1.94

Tue, 07 Apr 2026 00:00:00 GMT

Default effort changed from medium to high for API-key, Bedrock/Vertex/Foundry, Team, and Enterprise users
Amazon Bedrock powered by Mantle — set CLAUDE_CODE_USE_MANTLE=1
/cost now shows per-model and cache-hit breakdown for subscription users
/release-notes is now an interactive version picker
Bedrock interactive setup wizard accessible from the login screen
forceRemoteSettingsRefresh policy — block startup until remote managed settings are freshly fetched (fail-closed)

Claude Code v2.1.91

Thu, 02 Apr 2026 00:00:00 GMT

MCP tool result persistence override via _meta["anthropic/maxResultSizeChars"] — up to 500K chars
disableSkillShellExecution setting — disable inline shell execution in skills and plugin commands
Plugins can now ship executables under bin/ and invoke them as bare commands from Bash tool
/vim command removed (toggle vim mode via /config → Editor mode instead)

Claude Code v2.1.90

Wed, 01 Apr 2026 00:00:00 GMT

/powerup — interactive lessons teaching Claude Code features with animated demos

Claude Code v2.1.89

Wed, 01 Apr 2026 00:00:00 GMT

"defer" permission decision for PreToolUse hooks — headless sessions can pause at a tool call and resume
CLAUDE_CODE_NO_FLICKER=1 — opt into flicker-free alt-screen rendering with virtualized scrollback
PermissionDenied hook — fires after auto mode classifier denials; return {retry:true} to let the model retry
Named subagents added to @ mention typeahead suggestions
Auto mode — denied commands appear in /permissions → Recent tab where you can retry with r

Claude Code v2.1.85

Thu, 26 Mar 2026 00:00:00 GMT

Conditional if field for hooks using permission rule syntax — filter when hooks run to reduce overhead
/proactive (now /loop) fires add timestamp markers in transcripts
MCP OAuth now follows RFC 9728 Protected Resource Metadata discovery
PreToolUse hooks can satisfy AskUserQuestion by returning updatedInput + permissionDecision allow

Claude Code v2.1.84

Thu, 26 Mar 2026 00:00:00 GMT

PowerShell tool for Windows as an opt-in preview
ANTHROPIC_DEFAULT_OPUS/SONNET/HAIKU_MODEL_SUPPORTS env vars — override effort/thinking capability detection for 3p providers
TaskCreated hook fires when a task is created via TaskCreate
WorktreeCreate hook supports type:http — return the created worktree path via hookSpecificOutput.worktreePath
allowedChannelPlugins managed setting for team/enterprise admins
Rules and skills paths: frontmatter now accepts a YAML list of globs

Claude Code v2.1.83

Wed, 25 Mar 2026 00:00:00 GMT

managed-settings.d/ drop-in directory — separate teams deploy independent policy fragments, merged alphabetically
CwdChanged and FileChanged hook events for reactive environment management (e.g. direnv)
sandbox.failIfUnavailable setting — exit with error when sandbox cannot start instead of running unsandboxed
Transcript search — press / in transcript mode (Ctrl+O) to search, n/N to step through matches
Agents can now declare initialPrompt in frontmatter to auto-submit a first turn
Changed "stop all background agents" keybinding from Ctrl+F to Ctrl+X Ctrl+K

Claude Code v2.1.81

Fri, 20 Mar 2026 00:00:00 GMT

--bare flag for scripted -p calls — skips hooks, LSP, plugin sync, and skill walks; requires API key auth
--channels permission relay — channel servers can forward tool approval prompts to your phone

Claude Code v2.1.80

Thu, 19 Mar 2026 00:00:00 GMT

rate_limits field in statusline scripts — shows Claude.ai rate limit usage (5-hour and 7-day windows)
effort frontmatter support for skills and slash commands to override effort level when invoked
source:'settings' plugin marketplace source — declare plugin entries inline in settings.json

Claude Code v2.1.79

Wed, 18 Mar 2026 00:00:00 GMT

--console flag to claude auth login for Anthropic Console (API billing) authentication

Claude Code v2.1.78

Tue, 17 Mar 2026 00:00:00 GMT

StopFailure hook event — fires when a turn ends due to an API error
"${CLAUDE_PLUGIN_DATA}" variable for plugin persistent state that survives plugin updates
effort, maxTurns, and disallowedTools frontmatter support for plugin-shipped agents
Response text now streams line-by-line as it is generated

Claude Code v2.1.77

Tue, 17 Mar 2026 00:00:00 GMT

Increased default max output tokens for Claude Opus 4.6 to 64K; upper bound for Opus/Sonnet 4.6 raised to 128K
allowRead sandbox filesystem setting — re-allow read access within denyRead regions
/copy now accepts an optional index — /copy N copies the Nth-latest assistant response

Claude Code v1.7.0

Fri, 01 Aug 2025 00:00:00 GMT

Added /ultrareview for deep multi-agent PR review (local diff or GitHub PR#)
Added /fast to toggle fast mode on Opus 4.6 (faster output, no model downgrade)
EnterWorktree and ExitWorktree tools for isolated agent tasks in git worktrees
Background agent support via run_in_background parameter on the Agent tool

Claude Code v1.6.0

Tue, 01 Jul 2025 00:00:00 GMT

Extended thinking support with think, think hard, think harder, ultrathink keywords
--effort flag for headless mode thinking budget control (low/medium/high)
MCP HTTP transport support in addition to stdio and SSE

Claude Code v1.5.0

Sun, 01 Jun 2025 00:00:00 GMT

Plan mode via Shift+Tab — Claude presents a plan before executing any action
/memory command to open and edit user-level CLAUDE.md
Skills system for custom agent configurations in .claude/skills/

Claude Code v1.0.0

Sat, 01 Mar 2025 00:00:00 GMT

Initial stable release of Claude Code
MCP server support with stdio and SSE transports
CLAUDE.md memory file system with import syntax
Project and user-level settings.json