claude-code Releases

v2.1.86

Fri, 27 Mar 2026 21:42:09 GMT

What's changed

Added X-Claude-Code-Session-Id header to API requests so proxies can aggregate requests by session without parsing the body
Added .jj and .sl to VCS directory exclusion lists so Grep and file autocomplete don't descend into Jujutsu or Sapling metadata
Fixed --resume failing with "tool_use ids were found without tool_result blocks" on sessions created before v2.1.85
Fixed Write/Edit/Read failing on files outside the project root (e.g., ~/.claude/CLAUDE.md) when conditional skills or rules are configured
Fixed unnecessary config disk writes on every skill invocation that could cause performance issues and config corruption on Windows
Fixed potential out-of-memory crash when using /feedback on very long sessions with large transcript files
Fixed --bare mode dropping MCP tools in interactive sessions and silently discarding messages enqueued mid-turn
Fixed the c shortcut copying only ~20 characters of the OAuth login URL instead of the full URL
Fixed masked input (e.g., OAuth code paste) leaking the start of the token when wrapping across multiple lines on narrow terminals
Fixed official marketplace plugin scripts failing with "Permission denied" on macOS/Linux since v2.1.83
Fixed statusline showing another session's model when running multiple Claude Code instances and using /model in one of them
Fixed scroll not following new messages after wheel scroll or click-to-select at the bottom of a long conversation
Fixed /plugin uninstall dialog: pressing n now correctly uninstalls the plugin while preserving its data directory
Fixed a regression where pressing Enter after clicking could leave the transcript blank until the response arrived
Fixed ultrathink hint lingering after deleting the keyword
Fixed memory growth in long sessions from markdown/highlight render caches retaining full content strings
Reduced startup event-loop stalls when many claude.ai MCP connectors are configured (macOS keychain cache extended from 5s to 30s)
Reduced token overhead when mentioning files with @ — raw string content no longer JSON-escaped
Improved prompt cache hit rate for Bedrock, Vertex, and Foundry users by removing dynamic content from tool descriptions
Memory filenames in the "Saved N memories" notice now highlight on hover and open on click
Skill descriptions in the /skills listing are now capped at 250 characters to reduce context usage
Changed /skills menu to sort alphabetically for easier scanning
Auto mode now shows "unavailable for your plan" when disabled by plan restrictions (was "temporarily unavailable")
[VSCode] Fixed extension incorrectly showing "Not responding" during long-running operations
[VSCode] Fixed extension defaulting Max plan users to Sonnet after the OAuth token refreshes (8 hours after login)
Read tool now uses compact line-number format and deduplicates unchanged re-reads, reducing token usage

v2.1.85

Thu, 26 Mar 2026 22:52:12 GMT

What's changed

Added CLAUDE_CODE_MCP_SERVER_NAME and CLAUDE_CODE_MCP_SERVER_URL environment variables to MCP headersHelper scripts, allowing one helper to serve multiple servers
Added conditional if field for hooks using permission rule syntax (e.g., Bash(git *)) to filter when they run, reducing process spawning overhead
Added timestamp markers in transcripts when scheduled tasks (/loop, CronCreate) fire
Added trailing space after [Image #N] placeholder when pasting images
Deep link queries (claude-cli://open?q=…) now support up to 5,000 characters, with a "scroll to review" warning for long pre-filled prompts
MCP OAuth now follows RFC 9728 Protected Resource Metadata discovery to find the authorization server
Plugins blocked by organization policy (managed-settings.json) can no longer be installed or enabled, and are hidden from marketplace views
PreToolUse hooks can now satisfy AskUserQuestion by returning updatedInput alongside permissionDecision: "allow", enabling headless integrations that collect answers via their own UI
tool_parameters in OpenTelemetry tool_result events are now gated behind OTEL_LOG_TOOL_DETAILS=1
Fixed /compact failing with "context exceeded" when the conversation has grown too large for the compact request itself to fit
Fixed /plugin enable and /plugin disable failing when a plugin's install location differs from where it's declared in settings
Fixed --worktree exiting with an error in non-git repositories before the WorktreeCreate hook could run
Fixed deniedMcpServers setting not blocking claude.ai MCP servers
Fixed switch_display in the computer-use tool returning "not available in this session" on multi-monitor setups
Fixed crash when OTEL_LOGS_EXPORTER, OTEL_METRICS_EXPORTER, or OTEL_TRACES_EXPORTER is set to none
Fixed diff syntax highlighting not working in non-native builds
Fixed MCP step-up authorization failing when a refresh token exists — servers requesting elevated scopes via 403 insufficient_scope now correctly trigger the re-authorization flow
Fixed memory leak in remote sessions when a streaming response is interrupted
Fixed persistent ECONNRESET errors during edge connection churn by using a fresh TCP connection on retry
Fixed prompts getting stuck in the queue after running certain slash commands, with up-arrow unable to retrieve them
Fixed Python Agent SDK: type:'sdk' MCP servers passed via --mcp-config are no longer dropped during startup
Fixed raw key sequences appearing in the prompt when running over SSH or in the VS Code integrated terminal
Fixed Remote Control session status staying stuck on "Requires Action" after a permission is resolved
Fixed shift+enter and meta+enter being intercepted by typeahead suggestions instead of inserting newlines
Fixed stale content bleeding through when scrolling up during streaming
Fixed terminal left in enhanced keyboard mode after exit in Ghostty, Kitty, WezTerm, and other terminals supporting the Kitty keyboard protocol — Ctrl+C and Ctrl+D now work correctly after quitting
Improved @-mention file autocomplete performance on large repositories
Improved PowerShell dangerous command detection
Improved scroll performance with large transcripts by replacing WASM yoga-layout with a pure TypeScript implementation
Reduced UI stutter when compaction triggers on large sessions

v2.1.84

Thu, 26 Mar 2026 00:31:05 GMT

What's changed

Added PowerShell tool for Windows as an opt-in preview. Learn more at https://code.claude.com/docs/en/tools-reference#powershell-tool
Added ANTHROPIC_DEFAULT_{OPUS,SONNET,HAIKU}_MODEL_SUPPORTS env vars to override effort/thinking capability detection for pinned default models for 3p (Bedrock, Vertex, Foundry), and _MODEL_NAME/_DESCRIPTION to customize the /model picker label
Added CLAUDE_STREAM_IDLE_TIMEOUT_MS env var to configure the streaming idle watchdog threshold (default 90s)
Added TaskCreated hook that fires when a task is created via TaskCreate
Added WorktreeCreate hook support for type: "http" — return the created worktree path via hookSpecificOutput.worktreePath in the response JSON
Added allowedChannelPlugins managed setting for team/enterprise admins to define a channel plugin allowlist
Added x-client-request-id header to API requests for debugging timeouts
Added idle-return prompt that nudges users returning after 75+ minutes to /clear, reducing unnecessary token re-caching on stale sessions
Deep links (claude-cli://) now open in your preferred terminal instead of whichever terminal happens to be first in the detection list
Rules and skills paths: frontmatter now accepts a YAML list of globs
MCP tool descriptions and server instructions are now capped at 2KB to prevent OpenAPI-generated servers from bloating context
MCP servers configured both locally and via claude.ai connectors are now deduplicated — the local config wins
Background bash tasks that appear stuck on an interactive prompt now surface a notification after ~45 seconds
Token counts ≥1M now display as "1.5m" instead of "1512.6k"
Global system-prompt caching now works when ToolSearch is enabled, including for users with MCP tools configured
Fixed voice push-to-talk: holding the voice key no longer leaks characters into the text input, and transcripts now insert at the correct position
Fixed up/down arrow keys being unresponsive when a footer item is focused
Fixed Ctrl+U (kill-to-line-start) being a no-op at line boundaries in multiline input, so repeated Ctrl+U now clears across lines
Fixed null-unbinding a default chord binding (e.g. "ctrl+x ctrl+k": null) still entering chord-wait mode instead of freeing the prefix key
Fixed mouse events inserting literal "mouse" text into transcript search input
Fixed workflow subagents failing with API 400 when the outer session uses --json-schema and the subagent also specifies a schema
Fixed missing background color behind certain emoji in user message bubbles on some terminals
Fixed the "allow Claude to edit its own settings for this session" permission option not sticking for users with Edit(.claude) allow rules
Fixed a hang when generating attachment snippets for large edited files
Fixed MCP tool/resource cache leak on server reconnect
Fixed a startup performance issue where partial clone repositories (Scalar/GVFS) triggered mass blob downloads
Fixed native terminal cursor not tracking the text input caret, so IME composition (CJK input) now renders inline and screen readers can follow the input position
Fixed spurious "Not logged in" errors on macOS caused by transient keychain read failures
Fixed cold-start race where core tools could be deferred without their bypass active, causing Edit/Write to fail with InputValidationError on typed parameters
Improved detection for dangerous removals of Windows drive roots (C:\, C:\Windows, etc.)
Improved interactive startup by ~30ms by running setup() in parallel with slash command and agent loading
Improved startup for claude "prompt" with MCP servers — the REPL now renders immediately instead of blocking until all servers connect
Improved Remote Control to show a specific reason when blocked instead of a generic "not yet enabled" message
Improved p90 prompt cache rate
Reduced scroll-to-top resets in long sessions by making the message window immune to compaction and grouping changes
Reduced terminal flickering when animated tool progress scrolls above the viewport
Changed issue/PR references to only become clickable links when written as owner/repo#123 — bare #123 is no longer auto-linked
Slash commands unavailable for the current auth setup (/voice, /mobile, /chrome, /upgrade, etc.) are now hidden instead of shown
[VSCode] Added rate limit warning banner with usage percentage and reset time
Stats screenshot (Ctrl+S in /stats) now works in all builds and is 16× faster

v2.1.83

Wed, 25 Mar 2026 06:08:12 GMT

What's changed

Added managed-settings.d/ drop-in directory alongside managed-settings.json, letting separate teams deploy independent policy fragments that merge alphabetically
Added CwdChanged and FileChanged hook events for reactive environment management (e.g., direnv)
Added sandbox.failIfUnavailable setting to exit with an error when sandbox is enabled but cannot start, instead of running unsandboxed
Added disableDeepLinkRegistration setting to prevent claude-cli:// protocol handler registration
Added CLAUDE_CODE_SUBPROCESS_ENV_SCRUB=1 to strip Anthropic and cloud provider credentials from subprocess environments (Bash tool, hooks, MCP stdio servers)
Added transcript search — press / in transcript mode (Ctrl+O) to search, n/N to step through matches
Added 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 so you can reference them positionally in your prompt
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
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 bash mode not activating when tab-accepting !-prefixed command suggestions
Fixed stale slash command selection showing wrong highlighted command after navigating suggestions
Fixed /config menu showing both the search cursor and list selection at the same time
Fixed background subagents becoming invisible after context compaction, which could cause duplicate agents to be spawned
Fixed background agent tasks staying stuck in "running" state when git or API calls hang during cleanup
Fixed --channels showing "Channels are not currently available" on first launch after upgrade
Fixed uninstalled plugin hooks continuing to fire until the next session
Fixed queued commands flickering during streaming responses
Fixed slash commands being sent to the model as text when submitted while a message is processing
Fixed scrollback jumping when collapsed read/search groups finish after scrolling offscreen
Fixed scrollback jumping to top when the model starts or stops thinking
Fixed SDK session history loss on resume caused by hook progress/attachment messages forking the parentUuid chain
Fixed copy-on-select not firing when you release the mouse outside the terminal window
Fixed ghost characters appearing in height-constrained lists when items overflow
Fixed Ctrl+B interfering with readline backward-char at an idle prompt — it now only fires when a foreground task can be backgrounded
Fixed tool result files never being cleaned up, ignoring the cleanupPeriodDays setting
Fixed space key being swallowed for up to 3 seconds after releasing voice hold-to-talk
Fixed ALSA library errors corrupting the terminal UI when using voice mode on Linux without audio hardware (Docker, headless, WSL1)
Fixed voice mode SoX detection on Termux/Android where spawning which is kernel-restricted
Fixed Remote Control sessions showing as Idle in the web session list while actively running
Fixed footer navigation selecting an invisible Remote Control pill in config-driven mode
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
Improved plugin startup — commands, skills, and agents now load from disk cache without re-fetching
Improved Remote Control session titles: AI-generated titles now appear within seconds of the first message
Improved WebFetch to identify as Claude-User so site operators can recognize and allowlist Claude Code traffic via robots.txt
Reduced WebFetch peak memory usage for large pages
Reduced scrollback resets in long sessions from once per turn to once per ~50 messages
Faster claude -p startup with unauthenticated HTTP/SSE MCP servers (~600ms saved)
Bash ghost-text suggestions now include just-submitted commands immediately
Increased non-streaming fallback token cap (21k → 64k) and timeout (120s → 300s local) so fallback requests are less likely to be truncated
Interrupting a prompt before any response now automatically restores your input so you can edit and resubmit
/status now works while Claude is responding, instead of being queued until the turn finishes
Plugin MCP servers that duplicate an org-managed connector are now suppressed instead of running a second connection
Linux: respect XDG_DATA_HOME when registering the claude-cli:// protocol handler
Changed "stop all background agents" keybinding from Ctrl+F to Ctrl+X Ctrl+K to stop shadowing readline forward-char
Deprecated TaskOutput tool in favor of using Read on the background task's output file path
[VSCode] Spinner now turns red with "Not responding" when the backend hasn't responded for 60 seconds
[VSCode] Fixed session history not loading correctly when reopening a session via URL or after restart

v2.1.81

Fri, 20 Mar 2026 22:24:50 GMT

What's changed

Added --bare flag for scripted -p calls — skips hooks, LSP, plugin sync, and skill directory walks; requires ANTHROPIC_API_KEY or an apiKeyHelper via --settings (OAuth and keychain auth disabled); auto-memory fully disabled
Added --channels permission relay — channel servers that declare the permission capability can forward tool approval prompts to your phone
Fixed multiple concurrent Claude Code sessions requiring repeated re-authentication when one session refreshes its OAuth token
Fixed voice mode silently swallowing retry failures and showing a misleading "check your network" message instead of the actual error
Fixed voice mode audio not recovering when the server silently drops the WebSocket connection
Fixed CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS not suppressing the structured-outputs beta header, causing 400 errors on proxy gateways forwarding to Vertex/Bedrock
Fixed --channels bypass for Team/Enterprise orgs with no other managed settings configured
Fixed a crash on Node.js 18
Fixed unnecessary permission prompts for Bash commands containing dashes in strings
Fixed plugin hooks blocking prompt submission when the plugin directory is deleted mid-session
Fixed a race condition where background agent task output could hang indefinitely when the task completed between polling intervals
Resuming a session that was in a worktree now switches back to that worktree
Fixed /btw not including pasted text when used during an active response
Fixed a race where fast Cmd+Tab followed by paste could beat the clipboard copy under tmux
Fixed terminal tab title not updating with an auto-generated session description
Fixed invisible hook attachments inflating the message count in transcript mode
Fixed Remote Control sessions showing a generic title instead of deriving from the first prompt
Fixed /rename not syncing the title for Remote Control sessions
Fixed Remote Control /exit not reliably archiving the session
Improved MCP read/search tool calls to collapse into a single "Queried {server}" line (expand with Ctrl+O)
Improved ! bash mode discoverability — Claude now suggests it when you need to run an interactive command
Improved plugin freshness — ref-tracked plugins now re-clone on every load to pick up upstream changes
Improved Remote Control session titles to refresh after your third message
Updated MCP OAuth to support Client ID Metadata Document (CIMD / SEP-991) for servers without Dynamic Client Registration
Changed plan mode to hide the "clear context" option by default (restore with "showClearContextOnPlanAccept": true)
Disabled line-by-line response streaming on Windows (including WSL in Windows Terminal) due to rendering issues
[VSCode] Fixed Windows PATH inheritance for Bash tool when using Git Bash (regression in v2.1.78)

v2.1.80

Thu, 19 Mar 2026 22:08:48 GMT

What's changed

Added rate_limits field to statusline scripts for displaying Claude.ai rate limit usage (5-hour and 7-day windows with used_percentage and resets_at)
Added source: 'settings' plugin marketplace source — declare plugin entries inline in settings.json
Added CLI tool usage detection to plugin tips, in addition to file pattern matching
Added effort frontmatter support for skills and slash commands to override the model effort level when invoked
Added --channels (research preview) — allow MCP servers to push messages into your session
Fixed --resume dropping parallel tool results — sessions with parallel tool calls now restore all tool_use/tool_result pairs instead of showing [Tool result missing] placeholders
Fixed voice mode WebSocket failures caused by Cloudflare bot detection on non-browser TLS fingerprints
Fixed 400 errors when using fine-grained tool streaming through API proxies, Bedrock, or Vertex
Fixed /remote-control appearing for gateway and third-party provider deployments where it cannot function
Fixed /sandbox tab switching not responding to Tab or arrow keys
Improved responsiveness of @ file autocomplete in large git repositories
Improved /effort to show what auto currently resolves to, matching the status bar indicator
Improved /permissions — Tab and arrow keys now switch tabs from within a list
Improved background tasks panel — left arrow now closes from the list view
Simplified plugin install tips to use a single /plugin install command instead of a two-step flow
Reduced memory usage on startup in large repositories (~80 MB saved on 250k-file repos)
Fixed managed settings (enabledPlugins, permissions.defaultMode, policy-set env vars) not being applied at startup when remote-settings.json was cached from a prior session

v2.1.79

Wed, 18 Mar 2026 22:29:36 GMT

What's changed

Added --console flag to claude auth login for Anthropic Console (API billing) authentication
Added "Show turn duration" toggle to the /config menu
Fixed claude -p hanging when spawned as a subprocess without explicit stdin (e.g. Python subprocess.run)
Fixed Ctrl+C not working in -p (print) mode
Fixed /btw returning the main agent's output instead of answering the side question when triggered during streaming
Fixed voice mode not activating correctly on startup when voiceEnabled: true is set
Fixed left/right arrow tab navigation in /permissions
Fixed CLAUDE_CODE_DISABLE_TERMINAL_TITLE not preventing terminal title from being set on startup
Fixed custom status line showing nothing when workspace trust is blocking it
Fixed enterprise users being unable to retry on rate limit (429) errors
Fixed SessionEnd hooks not firing when using interactive /resume to switch sessions
Improved startup memory usage by ~18MB across all scenarios
Improved non-streaming API fallback with a 2-minute per-attempt timeout, preventing sessions from hanging indefinitely
CLAUDE_CODE_PLUGIN_SEED_DIR now supports multiple seed directories separated by the platform path delimiter (: on Unix, ; on Windows)
[VSCode] Added /remote-control — bridge your session to claude.ai/code to continue from a browser or phone
[VSCode] Session tabs now get AI-generated titles based on your first message
[VSCode] Fixed the thinking pill showing "Thinking" instead of "Thought for Ns" after a response completes
[VSCode] Fixed missing session diff button when opening sessions from the left sidebar

v2.1.78

Tue, 17 Mar 2026 23:42:55 GMT

What's changed

Added StopFailure hook event that fires when the turn ends due to an API error (rate limit, auth failure, etc.)
Added ${CLAUDE_PLUGIN_DATA} variable for plugin persistent state that survives plugin updates; /plugin uninstall prompts before deleting it
Added effort, maxTurns, and disallowedTools frontmatter support for plugin-shipped agents
Terminal notifications (iTerm2/Kitty/Ghostty popups, progress bar) now reach the outer terminal when running inside tmux with set -g allow-passthrough on
Response text now streams line-by-line as it's generated
Fixed git log HEAD failing with "ambiguous argument" inside sandboxed Bash on Linux, and stub files polluting git status in the working directory
Fixed cc log and --resume silently truncating conversation history on large sessions (>5 MB) that used subagents
Fixed infinite loop when API errors triggered stop hooks that re-fed blocking errors to the model
Fixed deny: ["mcp__servername"] permission rules not removing MCP server tools before sending to the model, allowing it to see and attempt blocked tools
Fixed sandbox.filesystem.allowWrite not working with absolute paths (previously required // prefix)
Fixed /sandbox Dependencies tab showing Linux prerequisites on macOS instead of macOS-specific info
Security: Fixed silent sandbox disable when sandbox.enabled: true is set but dependencies are missing — now shows a visible startup warning
Fixed .git, .claude, and other protected directories being writable without a prompt in bypassPermissions mode
Fixed ctrl+u in normal mode scrolling instead of readline kill-line (ctrl+u/ctrl+d half-page scroll moved to transcript mode only)
Fixed voice mode modifier-combo push-to-talk keybindings (e.g. ctrl+k) requiring a hold instead of activating immediately
Fixed voice mode not working on WSL2 with WSLg (Windows 11); WSL1/Win10 users now get a clear error
Fixed --worktree flag not loading skills and hooks from the worktree directory
Fixed CLAUDE_CODE_DISABLE_GIT_INSTRUCTIONS and includeGitInstructions setting not suppressing the git status section in the system prompt
Fixed Bash tool not finding Homebrew and other PATH-dependent binaries when VS Code is launched from Dock/Spotlight
Fixed washed-out Claude orange color in VS Code/Cursor/code-server terminals that don't advertise truecolor support
Added ANTHROPIC_CUSTOM_MODEL_OPTION env var to add a custom entry to the /model picker, with optional _NAME and _DESCRIPTION suffixed vars for display
Fixed ANTHROPIC_BETAS environment variable being silently ignored when using Haiku models
Fixed queued prompts being concatenated without a newline separator
Improved memory usage and startup time when resuming large sessions
[VSCode] Fixed a brief flash of the login screen when opening the sidebar while already authenticated
[VSCode] Fixed "API Error: Rate limit reached" when selecting Opus — model dropdown no longer offers 1M context variant to subscribers whose plan tier is unknown

v2.1.77

Tue, 17 Mar 2026 00:28:12 GMT

What's changed

Increased default maximum output token limits for Claude Opus 4.6 to 64k tokens, and the upper bound for Opus 4.6 and Sonnet 4.6 models to 128k tokens
Added allowRead sandbox filesystem setting to re-allow read access within denyRead regions
/copy now accepts an optional index: /copy N copies the Nth-latest assistant response
Fixed "Always Allow" on compound bash commands (e.g. cd src && npm test) saving a single rule for the full string instead of per-subcommand, leading to dead rules and repeated permission prompts
Fixed auto-updater starting overlapping binary downloads when the slash-command overlay repeatedly opened and closed, accumulating tens of gigabytes of memory
Fixed --resume silently truncating recent conversation history due to a race between memory-extraction writes and the main transcript
Fixed PreToolUse hooks returning "allow" bypassing deny permission rules, including enterprise managed settings
Fixed Write tool silently converting line endings when overwriting CRLF files or creating files in CRLF directories
Fixed memory growth in long-running sessions from progress messages surviving compaction
Fixed cost and token usage not being tracked when the API falls back to non-streaming mode
Fixed CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS not stripping beta tool-schema fields, causing proxy gateways to reject requests
Fixed Bash tool reporting errors for successful commands when the system temp directory path contains spaces
Fixed paste being lost when typing immediately after pasting
Fixed Ctrl+D in /feedback text input deleting forward instead of the second press exiting the session
Fixed API error when dragging a 0-byte image file into the prompt
Fixed Claude Desktop sessions incorrectly using the terminal CLI's configured API key instead of OAuth
Fixed git-subdir plugins at different subdirectories of the same monorepo commit colliding in the plugin cache
Fixed ordered list numbers not rendering in terminal UI
Fixed a race condition where stale-worktree cleanup could delete an agent worktree just resumed from a previous crash
Fixed input deadlock when opening /mcp or similar dialogs while the agent is running
Fixed Backspace and Delete keys not working in vim NORMAL mode
Fixed status line not updating when vim mode is toggled on or off
Fixed hyperlinks opening twice on Cmd+click in VS Code, Cursor, and other xterm.js-based terminals
Fixed background colors rendering as terminal-default inside tmux with default configuration
Fixed iTerm2 session crash when selecting text inside tmux over SSH
Fixed clipboard copy silently failing in tmux sessions; copy toast now indicates whether to paste with ⌘V or tmux prefix+]
Fixed ←/→ accidentally switching tabs in settings, permissions, and sandbox dialogs while navigating lists
Fixed IDE integration not auto-connecting when Claude Code is launched inside tmux or screen
Fixed CJK characters visually bleeding into adjacent UI elements when clipped at the right edge
Fixed teammate panes not closing when the leader exits
Fixed iTerm2 auto mode not detecting iTerm2 for native split-pane teammates
Faster startup on macOS (~60ms) by reading keychain credentials in parallel with module loading
Faster --resume on fork-heavy and very large sessions — up to 45% faster loading and ~100-150MB less peak memory
Improved Esc to abort in-flight non-streaming API requests
Improved claude plugin validate to check skill, agent, and command frontmatter plus hooks/hooks.json, catching YAML parse errors and schema violations
Background bash tasks are now killed if output exceeds 5GB, preventing runaway processes from filling disk
Sessions are now auto-named from plan content when you accept a plan
Improved headless mode plugin installation to compose correctly with CLAUDE_CODE_PLUGIN_SEED_DIR
Show a notice when apiKeyHelper takes longer than 10s, preventing it from blocking the main loop
The Agent tool no longer accepts a resume parameter — use SendMessage({to: agentId}) to continue a previously spawned agent
SendMessage now auto-resumes stopped agents in the background instead of returning an error
Renamed /fork to /branch (/fork still works as an alias)
[VSCode] Improved plan preview tab titles to use the plan's heading instead of "Claude's Plan"
[VSCode] When option+click doesn't trigger native selection on macOS, the footer now points to the macOptionClickForcesSelection setting

v2.1.76

Sat, 14 Mar 2026 01:23:58 GMT

What's changed

Added MCP elicitation support — MCP servers can now request structured input mid-task via an interactive dialog (form fields or browser URL)
Added new Elicitation and ElicitationResult hooks to intercept and override responses before they're sent back
Added -n / --name CLI flag to set a display name for the session at startup
Added worktree.sparsePaths setting for claude --worktree in large monorepos to check out only the directories you need via git sparse-checkout
Added PostCompact hook that fires after compaction completes
Added /effort slash command to set model effort level
Added session quality survey — enterprise admins can configure the sample rate via the feedbackSurveyRate setting
Fixed deferred tools (loaded via ToolSearch) losing their input schemas after conversation compaction, causing array and number parameters to be rejected with type errors
Fixed slash commands showing "Unknown skill"
Fixed plan mode asking for re-approval after the plan was already accepted
Fixed voice mode swallowing keypresses while a permission dialog or plan editor was open
Fixed /voice not working on Windows when installed via npm
Fixed spurious "Context limit reached" when invoking a skill with model: frontmatter on a 1M-context session
Fixed "adaptive thinking is not supported on this model" error when using non-standard model strings
Fixed Bash(cmd:*) permission rules not matching when a quoted argument contains #
Fixed "don't ask again" in the Bash permission dialog showing the full raw command for pipes and compound commands
Fixed auto-compaction retrying indefinitely after consecutive failures — a circuit breaker now stops after 3 attempts
Fixed MCP reconnect spinner persisting after successful reconnection
Fixed LSP plugins not registering servers when the LSP Manager initialized before marketplaces were reconciled
Fixed clipboard copying in tmux over SSH — now attempts both direct terminal write and tmux clipboard integration
Fixed /export showing only the filename instead of the full file path in the success message
Fixed transcript not auto-scrolling to new messages after selecting text
Fixed Escape key not working to exit the login method selection screen
Fixed several Remote Control issues: sessions silently dying when the server reaps an idle environment, rapid messages being queued one-at-a-time instead of batched, and stale work items causing redelivery after JWT refresh
Fixed bridge sessions failing to recover after extended WebSocket disconnects
Fixed slash commands not found when typing the exact name of a soft-hidden command
Improved --worktree startup performance by reading git refs directly and skipping redundant git fetch when the remote branch is already available locally
Improved background agent behavior — killing a background agent now preserves its partial results in the conversation context
Improved model fallback notifications — now always visible instead of hidden behind verbose mode, with human-friendly model names
Improved blockquote readability on dark terminal themes — text is now italic with a left bar instead of dim
Improved stale worktree cleanup — worktrees left behind after an interrupted parallel run are now automatically cleaned up
Improved Remote Control session titles — now derived from your first prompt instead of showing "Interactive session"
Improved /voice to show your dictation language on enable and warn when your language setting isn't supported for voice input
Updated --plugin-dir to only accept one path to support subcommands — use repeated --plugin-dir for multiple directories
[VSCode] Fixed gitignore patterns containing commas silently excluding entire filetypes from the @-mention file picker

v2.1.75

Fri, 13 Mar 2026 17:09:08 GMT

Release v2.1.75

v2.1.74

Thu, 12 Mar 2026 00:34:23 GMT

What's changed

Added actionable suggestions to /context command — identifies context-heavy tools, memory bloat, and capacity warnings with specific optimization tips
Added autoMemoryDirectory setting to configure a custom directory for auto-memory storage
Fixed memory leak where streaming API response buffers were not released when the generator was terminated early, causing unbounded RSS growth on the Node.js/npm code path
Fixed managed policy ask rules being bypassed by user allow rules or skill allowed-tools
Fixed full model IDs (e.g., claude-opus-4-5) being silently ignored in agent frontmatter model: field and --agents JSON config — agents now accept the same model values as --model
Fixed MCP OAuth authentication hanging when the callback port is already in use
Fixed MCP OAuth refresh never prompting for re-auth after the refresh token expires, for OAuth servers that return errors with HTTP 200 (e.g. Slack)
Fixed voice mode silently failing on the macOS native binary for users whose terminal had never been granted microphone permission — the binary now includes the audio-input entitlement so macOS prompts correctly
Fixed SessionEnd hooks being killed after 1.5 s on exit regardless of hook.timeout — now configurable via CLAUDE_CODE_SESSIONEND_HOOKS_TIMEOUT_MS
Fixed /plugin install failing inside the REPL for marketplace plugins with local sources
Fixed marketplace update not syncing git submodules — plugin sources in submodules no longer break after update
Fixed unknown slash commands with arguments silently dropping input — now shows your input as a warning
Fixed Hebrew, Arabic, and other RTL text not rendering correctly in Windows Terminal, conhost, and VS Code integrated terminal
Fixed LSP servers not working on Windows due to malformed file URIs
Changed --plugin-dir so local dev copies now override installed marketplace plugins with the same name (unless that plugin is force-enabled by managed settings)
[VSCode] Fixed delete button not working for Untitled sessions
[VSCode] Improved scroll wheel responsiveness in the integrated terminal with terminal-aware acceleration

v2.1.73

Wed, 11 Mar 2026 18:26:43 GMT

What's changed

Added modelOverrides setting to map model picker entries to custom provider model IDs (e.g. Bedrock inference profile ARNs)
Added actionable guidance when OAuth login or connectivity checks fail due to SSL certificate errors (corporate proxies, NODE_EXTRA_CA_CERTS)
Fixed freezes and 100% CPU loops triggered by permission prompts for complex bash commands
Fixed a deadlock that could freeze Claude Code when many skill files changed at once (e.g. during git pull in a repo with a large .claude/skills/ directory)
Fixed Bash tool output being lost when running multiple Claude Code sessions in the same project directory
Fixed subagents with model: opus/sonnet/haiku being silently downgraded to older model versions on Bedrock, Vertex, and Microsoft Foundry
Fixed background bash processes spawned by subagents not being cleaned up when the agent exits
Fixed /resume showing the current session in the picker
Fixed /ide crashing with onInstall is not defined when auto-installing the extension
Fixed /loop not being available on Bedrock/Vertex/Foundry and when telemetry was disabled
Fixed SessionStart hooks firing twice when resuming a session via --resume or --continue
Fixed JSON-output hooks injecting no-op system-reminder messages into the model's context on every turn
Fixed voice mode session corruption when a slow connection overlaps a new recording
Fixed Linux sandbox failing to start with "ripgrep (rg) not found" on native builds
Fixed Linux native modules not loading on Amazon Linux 2 and other glibc 2.26 systems
Fixed "media_type: Field required" API error when receiving images via Remote Control
Fixed /heapdump failing on Windows with EEXIST error when the Desktop folder already exists
Improved Up arrow after interrupting Claude — now restores the interrupted prompt and rewinds the conversation in one step
Improved IDE detection speed at startup
Improved clipboard image pasting performance on macOS
Improved /effort to work while Claude is responding, matching /model behavior
Improved voice mode to automatically retry transient connection failures during rapid push-to-talk re-press
Improved the Remote Control spawn mode selection prompt with better context
Changed default Opus model on Bedrock, Vertex, and Microsoft Foundry to Opus 4.6 (was Opus 4.1)
Deprecated /output-style command — use /config instead. Output style is now fixed at session start for better prompt caching
VSCode: Fixed HTTP 400 errors for users behind proxies or on Bedrock/Vertex with Claude 4.5 models

v2.1.72

Tue, 10 Mar 2026 00:43:03 GMT

What's changed

Changed tool search to bypass the third-party proxy gate when the environment variable is set (replaces CLAUDE_CODE_PROXY_SUPPORTS_TOOL_REFERENCE, now removed)
Added w key in /copy to write the focused selection directly to a file, bypassing the clipboard (useful over SSH)
Added optional description argument to /plan (e.g., /plan fix the auth bug) that enters plan mode and immediately starts
Added claude plugins as an alias for claude plugin
Added ExitWorktree tool to leave an EnterWorktree session
Added CLAUDE_CODE_DISABLE_CRON environment variable to immediately stop scheduled cron jobs mid-session
Added lsof, pgrep, tput, ss, fd, and fdfind to the bash auto-approval allowlist, reducing permission prompts for common read-only operations
Added support for marketplace git URLs without .git suffix (Azure DevOps, AWS CodeCommit)
Restored the model parameter on the Agent tool for per-invocation model overrides
Simplified effort levels to low/medium/high (removed max) with new symbols (○ ◐ ●) and a brief notification instead of a persistent icon. Use /effort auto to reset to default
Improved /config — Escape now cancels changes, Enter saves and closes, Space toggles settings
Improved up-arrow history to show current session's messages first when running multiple concurrent sessions
Improved voice input transcription accuracy for repo names and common dev terms (regex, OAuth, JSON)
Improved marketplace clone failure messages to show diagnostic info even when git produces no stderr
Improved claude plugin validate to explain that marketplace.json source paths are relative to the repo root when rejecting ../ paths
Improved bash command parsing by switching to a native module — faster initialization and no memory leak
Reduced false-positive bash permission prompts — tree-sitter parsing now handles find -exec, variable assignments, command substitutions, and many other patterns that previously triggered unnecessary prompts. Also fixed tree-sitter not loading in npm-installed versions
Reduced bundle size by ~510 KB
Changed CLAUDE.md HTML comments () to be hidden from Claude when auto-injected. Comments remain visible when read with the Read tool
Fixed slow exits when background tasks or hooks were slow to respond
Fixed agent task progress stuck on "Initializing…"
Fixed skill hooks firing twice per event when a hooks-enabled skill is invoked by the model
Fixed several voice mode issues: occasional input lag, false "No speech detected" errors after releasing push-to-talk, and stale transcripts re-filling the prompt after submission
Fixed --continue not resuming from the most recent point after --compact
Fixed bash security parsing edge cases
Fixed several plugin issues: installation failing on Windows with EEXIST error in OneDrive folders, marketplace blocking user-scope installs when a project-scope install exists, CLAUDE_CODE_PLUGIN_CACHE_DIR creating literal ~ directories, and plugin.json with marketplace-only fields failing to load
Fixed feedback survey appearing too frequently in long sessions
Fixed --effort CLI flag being reset by unrelated settings writes on startup
Fixed backgrounded Ctrl+B queries losing their transcript or corrupting the new conversation after /clear
Fixed /clear killing background agent/bash tasks — only foreground tasks are now cleared
Fixed worktree isolation issues: Task tool resume not restoring cwd, and background task notifications missing worktreePath and worktreeBranch
Fixed /model not displaying results when run while Claude is working
Fixed digit keys selecting menu options instead of typing in plan mode permission prompt's text input
Fixed sandbox permission issues: certain file write operations incorrectly allowed without prompting, and output redirections to allowlisted directories (like /tmp/claude/) prompting unnecessarily
Improved CPU utilization in long sessions
Fixed prompt cache invalidation in SDK query() calls, reducing input token costs up to 12x
Fixed Escape key becoming unresponsive after cancelling a query
Fixed double Ctrl+C not exiting when background agents or tasks are running
Fixed team agents to inherit the leader's model
Fixed "Always Allow" saving permission rules that never match again
Fixed several hooks issues: transcript_path pointing to the wrong directory for resumed/forked sessions, agent prompt being silently deleted from settings.json on every settings write, PostToolUse block reason displaying twice, async hooks not receiving stdin with bash read -r, and validation error message showing an example that fails validation
Fixed session crashes in Desktop/SDK when Read returned files containing U+2028/U+2029 characters
Fixed terminal title being cleared on exit even when CLAUDE_CODE_DISABLE_TERMINAL_TITLE was set
Fixed several permission rule matching issues: wildcard rules not matching commands with heredocs, embedded newlines, or no arguments; sandbox.excludedCommands failing with env var prefixes; "always allow" suggesting overly broad prefixes for nested CLI tools; and deny rules not applying to all command forms
Fixed oversized and truncated images from Bash data-URL output
Fixed a crash when resuming sessions that contained Bedrock API errors
Fixed intermittent "expected boolean, received string" validation errors on Edit, Bash, and Grep tool inputs
Fixed multi-line session titles when forking from a conversation whose first message contained newlines
Fixed queued messages not showing attached images, and images being lost when pressing ↑ to edit a queued message
Fixed parallel tool calls where a failed Read/WebFetch/Glob would cancel its siblings — only Bash errors now cascade
VSCode: Fixed scroll speed in integrated terminals not matching native terminals
VSCode: Fixed Shift+Enter submitting input instead of inserting a newline for users with older keybindings
VSCode: Added effort level indicator on the input border
VSCode: Added vscode://anthropic.claude-code/open URI handler to open a new Claude Code tab programmatically, with optional prompt and session query parameters

v2.1.71

Sat, 07 Mar 2026 00:12:46 GMT

What's changed

Added /loop command to run a prompt or slash command on a recurring interval (e.g. /loop 5m check the deploy)
Added cron scheduling tools for recurring prompts within a session
Added voice:pushToTalk keybinding to make the voice activation key rebindable in keybindings.json (default: space) — modifier+letter combos like meta+k have zero typing interference
Added fmt, comm, cmp, numfmt, expr, test, printf, getconf, seq, tsort, and pr to the bash auto-approval allowlist
Fixed stdin freeze in long-running sessions where keystrokes stop being processed but the process stays alive
Fixed a 5–8 second startup freeze for users with voice mode enabled, caused by CoreAudio initialization blocking the main thread after system wake
Fixed startup UI freeze when many claude.ai proxy connectors refresh an expired OAuth token simultaneously
Fixed forked conversations (/fork) sharing the same plan file, which caused plan edits in one fork to overwrite the other
Fixed the Read tool putting oversized images into context when image processing failed, breaking subsequent turns in long image-heavy sessions
Fixed false-positive permission prompts for compound bash commands containing heredoc commit messages
Fixed plugin installations being lost when running multiple Claude Code instances
Fixed claude.ai connectors failing to reconnect after OAuth token refresh
Fixed claude.ai MCP connector startup notifications appearing for every org-configured connector instead of only previously connected ones
Fixed background agent completion notifications missing the output file path, which made it difficult for parent agents to recover agent results after context compaction
Fixed duplicate output in Bash tool error messages when commands exit with non-zero status
Fixed Chrome extension auto-detection getting permanently stuck on "not installed" after running on a machine without local Chrome
Fixed /plugin marketplace update failing with merge conflicts when the marketplace is pinned to a branch/tag ref
Fixed /plugin marketplace add owner/repo@ref incorrectly parsing @ — previously only # worked as a ref separator, causing undiagnosable errors with strictKnownMarketplaces
Fixed duplicate entries in /permissions Workspace tab when the same directory is added with and without a trailing slash
Fixed --print hanging forever when team agents are configured — the exit loop no longer waits on long-lived in_process_teammate tasks
Fixed "❯ Tool loaded." appearing in the REPL after every ToolSearch call
Fixed prompting for cd && git ... on Windows when the model uses a mingw-style path
Improved startup time by deferring native image processor loading to first use
Improved bridge session reconnection to complete within seconds after laptop wake from sleep, instead of waiting up to 10 minutes
Improved /plugin uninstall to disable project-scoped plugins in .claude/settings.local.json instead of modifying .claude/settings.json, so changes don't affect teammates
Improved plugin-provided MCP server deduplication — servers that duplicate a manually-configured server (same command/URL) are now skipped, preventing duplicate connections and tool sets. Suppressions are shown in the /plugin menu.
Updated /debug to toggle debug logging on mid-session, since debug logs are no longer written by default
Removed startup notification noise for unauthenticated org-registered claude.ai connectors

v2.1.70

Fri, 06 Mar 2026 01:20:02 GMT

What's changed

Fixed API 400 errors when using ANTHROPIC_BASE_URL with a third-party gateway — tool search now correctly detects proxy endpoints and disables tool_reference blocks
Fixed API Error: 400 This model does not support the effort parameter when using custom Bedrock inference profiles or other model identifiers not matching standard Claude naming patterns
Fixed empty model responses immediately after ToolSearch — the server renders tool schemas with system-prompt-style tags at the prompt tail, which could confuse models into stopping early
Fixed prompt-cache bust when an MCP server with instructions connects after the first turn
Fixed Enter inserting a newline instead of submitting when typing over a slow SSH connection
Fixed clipboard corrupting non-ASCII text (CJK, emoji) on Windows/WSL by using PowerShell Set-Clipboard
Fixed extra VS Code windows opening at startup on Windows when running from the VS Code integrated terminal
Fixed voice mode failing on Windows native binary with "native audio module could not be loaded"
Fixed push-to-talk not activating on session start when voiceEnabled: true was set in settings
Fixed markdown links containing #NNN references incorrectly pointing to the current repository instead of the linked URL
Fixed repeated "Model updated to Opus 4.6" notification when a project's .claude/settings.json has a legacy Opus model string pinned
Fixed plugins showing as inaccurately installed in /plugin
Fixed plugins showing "not found in marketplace" errors on fresh startup by auto-refreshing after marketplace installation
Fixed /security-review command failing with unknown option merge-base on older git versions
Fixed /color command having no way to reset back to the default color — /color default, /color gray, /color reset, and /color none now restore the default
Fixed a performance regression in the AskUserQuestion preview dialog that re-ran markdown rendering on every keystroke in the notes input
Fixed feature flags read during early startup never refreshing their disk cache, causing stale values to persist across sessions
Fixed permissions.defaultMode settings values other than acceptEdits or plan being applied in Claude Code Remote environments — they are now ignored
Fixed skill listing being re-injected on every --resume (~600 tokens saved per resume)
Fixed teleport marker not rendering in VS Code teleported sessions
Improved error message when microphone captures silence to distinguish from "no speech detected"
Improved compaction to preserve images in the summarizer request, allowing prompt cache reuse for faster and cheaper compaction
Improved /rename to work while Claude is processing, instead of being silently queued
Reduced prompt input re-renders during turns by ~74%
Reduced startup memory by ~426KB for users without custom CA certificates
Reduced Remote Control /poll rate to once per 10 minutes while connected (was 1–2s), cutting server load ~300×. Reconnection is unaffected — transport loss immediately wakes fast polling.
[VSCode] Added spark icon in VS Code activity bar that lists all Claude Code sessions, with sessions opening as full editors
[VSCode] Added full markdown document view for plans in VS Code, with support for adding comments to provide feedback
[VSCode] Added native MCP server management dialog — use /mcp in the chat panel to enable/disable servers, reconnect, and manage OAuth authentication without switching to the terminal

v2.1.69

Thu, 05 Mar 2026 00:26:21 GMT

What's changed

Added the /claude-api skill for building applications with the Claude API and Anthropic SDK
Added Ctrl+U on an empty bash prompt (!) to exit bash mode, matching escape and backspace
Added numeric keypad support for selecting options in Claude's interview questions (previously only the number row above QWERTY worked)
Added optional name argument to /remote-control and claude remote-control (/remote-control My Project or --name "My Project") to set a custom session title visible in claude.ai/code
Added Voice STT support for 10 new languages (20 total) — Russian, Polish, Turkish, Dutch, Ukrainian, Greek, Czech, Danish, Swedish, Norwegian
Added effort level display (e.g., "with low effort") to the logo and spinner, making it easier to see which effort setting is active
Added agent name display in terminal title when using claude --agent
Added sandbox.enableWeakerNetworkIsolation setting (macOS only) to allow Go programs like gh, gcloud, and terraform to verify TLS certificates when using a custom MITM proxy with httpProxyPort
Added includeGitInstructions setting (and CLAUDE_CODE_DISABLE_GIT_INSTRUCTIONS env var) to remove built-in commit and PR workflow instructions from Claude's system prompt
Added /reload-plugins command to activate pending plugin changes without restarting
Added a one-time startup prompt suggesting Claude Code Desktop on macOS and Windows (max 3 showings, dismissible)
Added ${CLAUDE_SKILL_DIR} variable for skills to reference their own directory in SKILL.md content
Added InstructionsLoaded hook event that fires when CLAUDE.md or .claude/rules/*.md files are loaded into context
Added agent_id (for subagents) and agent_type (for subagents and --agent) to hook events
Added worktree field to status line hook commands with name, path, branch, and original repo directory when running in a --worktree session
Added pluginTrustMessage in managed settings to append organization-specific context to the plugin trust warning shown before installation
Added policy limit fetching (e.g., remote control restrictions) for Team plan OAuth users, not just Enterprise
Added pathPattern to strictKnownMarketplaces for regex-matching file/directory marketplace sources alongside hostPattern restrictions
Added plugin source type git-subdir to point to a subdirectory within a git repo
Added oauth.authServerMetadataUrl config option for MCP servers to specify a custom OAuth metadata discovery URL when standard discovery fails
Fixed a security issue where nested skill discovery could load skills from gitignored directories like node_modules
Fixed trust dialog silently enabling all .mcp.json servers on first run. You'll now see the per-server approval dialog as expected
Fixed claude remote-control crashing immediately on npm installs with "bad option: --sdk-url" (anthropics/claude-code#28334)
Fixed --model claude-opus-4-0 and --model claude-opus-4-1 resolving to deprecated Opus versions instead of current
Fixed macOS keychain corruption when using multiple OAuth MCP servers. Large OAuth metadata blobs could overflow the security -i stdin buffer, silently leaving stale credentials behind and causing repeated /login prompts.
Fixed .credentials.json losing subscriptionType (showing "Claude API" instead of "Claude Pro"/"Claude Max") when the profile endpoint transiently fails during token refresh (anthropics/claude-code#30185)
Fixed ghost dotfiles (.bashrc, HEAD, etc.) appearing as untracked files in the working directory after sandboxed Bash commands on Linux
Fixed Shift+Enter printing [27;2;13~ instead of inserting a newline in Ghostty over SSH
Fixed stash (Ctrl+S) being cleared when submitting a message while Claude is working
Fixed ctrl+o (transcript toggle) freezing for many seconds in long sessions with lots of file edits
Fixed plan mode feedback input not supporting multi-line text entry (backslash+Enter and Shift+Enter now insert newlines)
Fixed cursor not moving down into blank lines at the top of the input box
Fixed /stats crash when transcript files contain entries with missing or malformed timestamps
Fixed a brief hang after a streaming error on long sessions (the transcript was being fully rewritten to drop one line; it is now truncated in place)
Fixed --setting-sources user not blocking dynamically discovered project skills
Fixed duplicate CLAUDE.md, slash commands, agents, and rules when running from a worktree nested inside its main repo (e.g. claude -w)
Fixed plugin Stop/SessionEnd/etc hooks not firing after any /plugin operation
Fixed plugin hooks being silently dropped when two plugins use the same ${CLAUDE_PLUGIN_ROOT}/... command template
Fixed memory leak in long-running SDK/CCR sessions where conversation messages were retained unnecessarily
Fixed API 400 errors in forked agents (autocompact, summarization) when resuming sessions that were interrupted mid-tool-batch
Fixed "unexpected tool_use_id found in tool_result blocks" error when resuming conversations that start with an orphaned tool result
Fixed teammates accidentally spawning nested teammates via the Agent tool's name parameter
Fixed CLAUDE_CODE_MAX_OUTPUT_TOKENS being ignored during conversation compaction
Fixed /compact summary rendering as a user bubble in SDK consumers (Claude Code Remote web UI, VSCode extension)
Fixed voice space bar getting stuck after a failed voice activation (module loading race, cold GrowthBook)
Fixed worktree file copy on Windows
Fixed global .claude folder detection on Windows
Fixed symlink bypass where writing new files through a symlinked parent directory could escape the working directory in acceptEdits mode
Fixed sandbox prompting users to approve non-allowed domains when allowManagedDomainsOnly is enabled in managed settings — non-allowed domains are now blocked automatically with no bypass
Fixed interactive tools (e.g., AskUserQuestion) being silently auto-allowed when listed in a skill's allowed-tools, bypassing the permission prompt and running with empty answers
Fixed multi-GB memory spike when committing with large untracked binary files in the working tree
Fixed Escape not interrupting a running turn when the input box has draft text. Use Up arrow to pull queued messages back for editing, or Ctrl+U to clear the input line.
Fixed Android app crash when running local slash commands (/voice, /cost) in Remote Control sessions
Fixed a memory leak where old message array versions accumulated in React Compiler memoCache over long sessions
Fixed a memory leak where REPL render scopes accumulated over long sessions (~35MB over 1000 turns)
Fixed memory retention in in-process teammates where the parent's full conversation history was pinned for the teammate's lifetime, preventing GC after /clear or auto-compact
Fixed a memory leak in interactive mode where hook events could accumulate unboundedly during long sessions
Fixed hang when --mcp-config points to a corrupted file
Fixed slow startup when many skills/plugins are installed
Fixed cd && permission prompt to surface the chained command instead of only showing "Yes, allow reading from /"
Fixed conditional .claude/rules/*.md files (with paths: frontmatter) and nested CLAUDE.md files not loading in print mode (claude -p)
Fixed /clear not fully clearing all session caches, reducing memory retention in long sessions
Fixed terminal flicker caused by animated elements at the scrollback boundary
Fixed UI frame drops on macOS when using MCP servers with OAuth (regression from 2.1.x)
Fixed occasional frame stalls during typing caused by synchronous debug log flushes
Fixed TeammateIdle and TaskCompleted hooks to support {"continue": false, "stopReason": "..."} to stop the teammate, matching Stop hook behavior
Fixed WorktreeCreate and WorktreeRemove plugin hooks being silently ignored
Fixed skill descriptions with colons (e.g., "Triggers include: X, Y, Z") failing to load from SKILL.md frontmatter
Fixed project skills without a description: frontmatter field not appearing in Claude's available skills list
Fixed /context showing identical token counts for all MCP tools from a server
Fixed literal nul file creation on Windows when the model uses CMD-style 2>nul redirection in Git Bash
Fixed extra blank lines appearing below each tool call in the expanded subagent transcript view (Ctrl+O)
Fixed Tab/arrow keys not cycling Settings tabs when /config search box is focused but empty
Fixed service key OAuth sessions (CCR containers) spamming [ERROR] logs with 403s from profile-scoped endpoints
Fixed inconsistent color for "Remote Control active" status indicator
Fixed Voice waveform cursor covering the first suffix letter when dictating mid-input
Fixed Voice input showing all 5 spaces during warmup instead of capping at ~2 (aligning with the "keep holding…" hint)
Improved spinner performance by isolating the 50ms animation loop from the surrounding shell, reducing render and CPU overhead during turns
Improved UI rendering performance in native binaries with React Compiler
Improved --worktree startup by eliminating a git subprocess on the startup path
Improved macOS startup by eliminating redundant settings-file reloads when managed settings resolve
Improved macOS startup for Claude.ai enterprise/team users by skipping an unnecessary keychain lookup
Improved MCP -p startup by pipelining claude.ai config fetch with local connections and using a concurrency pool instead of sequential batching
Improved voice startup by removing imperceptible warmup pulse animations that were causing re-render stutter
Improved MCP binary content handling: tools returning PDFs, Office documents, or audio now save decoded bytes to disk with the correct file extension instead of dumping raw base64 into the conversation context. WebFetch also saves binary responses alongside its summary.
Improved memory usage in long sessions by stabilizing onSubmit across message updates
Improved LSP tool rendering and memory context building to no longer read entire files
Improved session upload and memory sync to avoid reading large files into memory before size/binary checks
Improved file operation performance by avoiding reading file contents for existence checks (6 sites)
Improved documentation to clarify that --append-system-prompt-file and --system-prompt-file work in interactive mode (the docs previously said print mode only)
Reduced baseline memory by ~16MB by deferring Yoga WASM preloading
Reduced memory footprint for SDK and CCR sessions using stream-json output
Reduced memory usage when resuming large sessions (including compacted history)
Reduced token usage on multi-agent tasks with more concise subagent final reports
Changed Sonnet 4.5 users on Pro/Max/Team Premium to be automatically migrated to Sonnet 4.6
Changed the /resume picker to show your most recent prompt instead of the first one. This also resolves some titles appearing as (session).
Changed claude.ai MCP connector failures to show a notification instead of silently disappearing from the tool list
Changed example command suggestions to be generated deterministically instead of calling Haiku
Changed resuming after compaction to no longer produce a preamble recap before continuing
[SDK] Changed task creation to no longer require the activeForm field — the spinner falls back to the task subject
[VSCode] Added compaction display as a collapsible "Compacted chat" card with the summary inside
[VSCode] The permission mode picker now respects permissions.disableBypassPermissionsMode from your effective Claude Code settings (including managed/policy settings) — when set to disable, bypass permissions mode is hidden from the picker
[VSCode] Fixed RTL text (Arabic, Hebrew, Persian) rendering reversed in the chat panel (regression in v2.1.63)

v2.1.68

Wed, 04 Mar 2026 10:11:14 GMT

What's changed

Opus 4.6 now defaults to medium effort for Max and Team subscribers. Medium effort works well for most tasks — it's the sweet spot between speed and thoroughness. You can change this anytime with /model
Re-introduced the "ultrathink" keyword to enable high effort for the next turn
Removed Opus 4 and 4.1 from Claude Code on the first-party API — users with these models pinned are automatically moved to Opus 4.6

v2.1.66

Wed, 04 Mar 2026 01:19:19 GMT

Release v2.1.66

v2.1.63

Sat, 28 Feb 2026 03:45:37 GMT

What's changed

Added /simplify and /batch bundled slash commands
Fixed local slash command output like /cost appearing as user-sent messages instead of system messages in the UI
Project configs & auto memory now shared across git worktrees of the same repository
Added ENABLE_CLAUDEAI_MCP_SERVERS=false env var to opt out from making claude.ai MCP servers available
Improved /model command to show the currently active model in the slash command menu
Added HTTP hooks, which can POST JSON to a URL and receive JSON instead of running a shell command
Fixed listener leak in bridge polling loop
Fixed listener leak in MCP OAuth flow cleanup
Added manual URL paste fallback during MCP OAuth authentication. If the automatic localhost redirect doesn't work, you can paste the callback URL to complete authentication.
Fixed memory leak when navigating hooks configuration menu
Fixed listener leak in interactive permission handler during auto-approvals
Fixed file count cache ignoring glob ignore patterns
Fixed memory leak in bash command prefix cache
Fixed MCP tool/resource cache leak on server reconnect
Fixed IDE host IP detection cache incorrectly sharing results across ports
Fixed WebSocket listener leak on transport reconnect
Fixed memory leak in git root detection cache that could cause unbounded growth in long-running sessions
Fixed memory leak in JSON parsing cache that grew unbounded over long sessions
VSCode: Fixed remote sessions not appearing in conversation history
Fixed a race condition in the REPL bridge where new messages could arrive at the server interleaved with historical messages during the initial connection flush, causing message ordering issues.
Fixed memory leak where long-running teammates retained all messages in AppState even after conversation compaction
Fixed a memory leak where MCP server fetch caches were not cleared on disconnect, causing growing memory usage with servers that reconnect frequently
Improved memory usage in long sessions with subagents by stripping heavy progress message payloads during context compaction
Added "Always copy full response" option to the /copy picker. When selected, future /copy commands will skip the code block picker and copy the full response directly.
VSCode: Added session rename and remove actions to the sessions list
Fixed /clear not resetting cached skills, which could cause stale skill content to persist in the new conversation

v2.1.62

Fri, 27 Feb 2026 01:56:19 GMT

What's changed

Fixed prompt suggestion cache regression that reduced cache hit rates

v2.1.61

Thu, 26 Feb 2026 22:34:32 GMT

What's changed

Fixed concurrent writes corrupting config file on Windows

v2.1.59

Thu, 26 Feb 2026 00:59:24 GMT

What's changed

Claude automatically saves useful context to auto-memory. Manage with /memory
Added /copy command to show an interactive picker when code blocks are present, allowing selection of individual code blocks or the full response.
Improved "always allow" prefix suggestions for compound bash commands (e.g. cd /tmp && git fetch && git push) to compute smarter per-subcommand prefixes instead of treating the whole command as one
Improved ordering of short task lists
Improved memory usage in multi-agent sessions by releasing completed subagent task state
Fixed MCP OAuth token refresh race condition when running multiple Claude Code instances simultaneously
Fixed shell commands not showing a clear error message when the working directory has been deleted

v2.1.58

Wed, 25 Feb 2026 20:00:11 GMT

What's changed

Expand Remote Control to more users

v2.1.56

Wed, 25 Feb 2026 06:27:48 GMT

What's changed

VS Code: Fixed another cause of "command 'claude-vscode.editor.openLast' not found" crashes

v2.1.55

Wed, 25 Feb 2026 03:15:51 GMT

What's changed

Fixed BashTool failing on Windows with EINVAL error

v2.1.53

Wed, 25 Feb 2026 00:13:48 GMT

What's changed

Fixed a UI flicker where user input would briefly disappear after submission before the message rendered
Fixed bulk agent kill (ctrl+f) to send a single aggregate notification instead of one per agent, and to properly clear the command queue
Fixed graceful shutdown sometimes leaving stale sessions when using Remote Control by parallelizing teardown network calls
Fixed --worktree sometimes being ignored on first launch
Fixed a panic ("switch on corrupted value") on Windows
Fixed a crash that could occur when spawning many processes on Windows
Fixed a crash in the WebAssembly interpreter on Linux x64 & Windows x64
Fixed a crash that sometimes occurred after 2 minutes on Windows ARM64

v2.1.52

Tue, 24 Feb 2026 06:39:56 GMT

What's changed

VS Code: Fixed extension crash on Windows ("command 'claude-vscode.editor.openLast' not found")

v2.1.51

Tue, 24 Feb 2026 01:40:58 GMT

What's changed

Added claude remote-control subcommand for external builds, enabling local environment serving for all users.
Updated plugin marketplace default git timeout from 30s to 120s and added CLAUDE_CODE_PLUGIN_GIT_TIMEOUT_MS to configure.
Added support for custom npm registries and specific version pinning when installing plugins from npm sources
BashTool now skips login shell (-l flag) by default when a shell snapshot is available, improving command execution performance. Previously this required setting CLAUDE_BASH_NO_LOGIN=true.
Fixed a security issue where statusLine and fileSuggestion hook commands could execute without workspace trust acceptance in interactive mode.
Tool results larger than 50K characters are now persisted to disk (previously 100K). This reduces context window usage and improves conversation longevity.
Fixed a security issue where HTTP hooks could interpolate arbitrary environment variables from header values. Env var interpolation now requires an explicit allowedEnvVars list in the hook configuration.
Fixed a bug where duplicate control_response messages (e.g. from WebSocket reconnects) could cause API 400 errors by pushing duplicate assistant messages into the conversation.
Added CLAUDE_CODE_ACCOUNT_UUID, CLAUDE_CODE_USER_EMAIL, and CLAUDE_CODE_ORGANIZATION_UUID environment variables for SDK callers to provide account info synchronously, eliminating a race condition where early telemetry events lacked account metadata.
Fixed slash command autocomplete crashing when a plugin's SKILL.md description is a YAML array or other non-string type
HTTP hooks are now routed through the sandbox network proxy when sandboxing is enabled, enforcing the domain allowlist. HTTP hooks are not supported for SessionStart/Setup events.
The /model picker now shows human-readable labels (e.g., "Sonnet 4.5") instead of raw model IDs for pinned model versions, with an upgrade hint when a newer version is available.

v2.1.50

Fri, 20 Feb 2026 23:48:57 GMT

What's changed

Added support for startupTimeout configuration for LSP servers
Added WorktreeCreate and WorktreeRemove hook events, enabling custom VCS setup and teardown when agent worktree isolation creates or removes worktrees.
Fixed a bug where resumed sessions could be invisible when the working directory involved symlinks, because the session storage path was resolved at different times during startup. Also fixed session data loss on SSH disconnect by flushing session data before hooks and analytics in the graceful shutdown sequence.
Linux: Fixed native modules not loading on systems with glibc older than 2.30 (e.g., RHEL 8)
Fixed memory leak in agent teams where completed teammate tasks were never garbage collected from session state
Fixed CLAUDE_CODE_SIMPLE to fully strip down skills, session memory, custom agents, and CLAUDE.md token counting
Fixed /mcp reconnect freezing the CLI when given a server name that doesn't exist
Fixed memory leak where completed task state objects were never removed from AppState
Added support for isolation: worktree in agent definitions, allowing agents to declaratively run in isolated git worktrees.
CLAUDE_CODE_SIMPLE mode now also disables MCP tools, attachments, hooks, and CLAUDE.md file loading for a fully minimal experience.
Fixed bug where MCP tools were not discovered when tool search is enabled and a prompt is passed in as a launch argument
Improved memory usage during long sessions by clearing internal caches after compaction
Added claude agents CLI command to list all configured agents
Improved memory usage during long sessions by clearing large tool results after they have been processed
Fixed a memory leak where LSP diagnostic data was never cleaned up after delivery, causing unbounded memory growth in long sessions
Fixed a memory leak where completed task output was not freed from memory, reducing memory usage in long sessions with many tasks
Improved startup performance for headless mode (-p flag) by deferring Yoga WASM and UI component imports
Fixed prompt suggestion cache regression that reduced cache hit rates
Fixed unbounded memory growth in long sessions by capping file history snapshots
Added CLAUDE_CODE_DISABLE_1M_CONTEXT environment variable to disable 1M context window support
Opus 4.6 (fast mode) now includes the full 1M context window
VSCode: Added /extra-usage command support in VS Code sessions
Fixed memory leak where TaskOutput retained recent lines after cleanup
Fixed memory leak in CircularBuffer where cleared items were retained in the backing array
Fixed memory leak in shell command execution where ChildProcess and AbortController references were retained after cleanup

v2.1.49

Thu, 19 Feb 2026 23:28:27 GMT

What's changed

Fixed Ctrl+C and ESC being silently ignored when background agents are running and the main thread is idle. Pressing twice within 3 seconds now kills all background agents.
Fixed prompt suggestion cache regression that reduced cache hit rates.
Fixed plugin enable and plugin disable to auto-detect the correct scope when --scope is not specified, instead of always defaulting to user scope
Simple mode (CLAUDE_CODE_SIMPLE) now includes the file edit tool in addition to the Bash tool, allowing direct file editing in simple mode.
Permission suggestions are now populated when safety checks trigger an ask response, enabling SDK consumers to display permission options
Sonnet 4.5 with 1M context is being removed from the Max plan in favor of our frontier Sonnet 4.6 model, which now has 1M context. Please switch in /model.
Fixed verbose mode not updating thinking block display when toggled via /config — memo comparators now correctly detect verbose changes
Fixed unbounded WASM memory growth during long sessions by periodically resetting the tree-sitter parser
Fixed potential rendering issues caused by stale yoga layout references
Improved performance in non-interactive mode (-p) by skipping unnecessary API calls during startup
Improved performance by caching authentication failures for HTTP and SSE MCP servers, avoiding repeated connection attempts to servers requiring auth
Fixed unbounded memory growth during long-running sessions caused by Yoga WASM linear memory never shrinking
SDK model info now includes supportsEffort, supportedEffortLevels, and supportsAdaptiveThinking fields so consumers can discover model capabilities.
Added ConfigChange hook event that fires when configuration files change during a session, enabling enterprise security auditing and optional blocking of settings changes.
Improved startup performance by caching MCP auth failures to avoid redundant connection attempts
Improved startup performance by reducing HTTP calls for analytics token counting
Improved startup performance by batching MCP tool token counting into a single API call
Fixed disableAllHooks setting to respect managed settings hierarchy — non-managed settings can no longer disable managed hooks set by policy (#26637)
Fixed --resume session picker showing raw XML tags for sessions that start with commands like /clear. Now correctly falls through to the session ID fallback.
Improved permission prompts for path safety and working directory blocks to show the reason for the restriction instead of a bare prompt with no context

v2.1.47

Wed, 18 Feb 2026 21:38:45 GMT

What's changed

Fixed FileWriteTool line counting to preserve intentional trailing blank lines instead of stripping them with trimEnd().
Fixed Windows terminal rendering bugs caused by os.EOL (\r\n) in display code — line counts now show correct values instead of always showing 1 on Windows.
Improved VS Code plan preview: auto-updates as Claude iterates, enables commenting only when the plan is ready for review, and keeps the preview open when rejecting so Claude can revise.
Fixed a bug where bold and colored text in markdown output could shift to the wrong characters on Windows due to \r\n line endings.
Fixed compaction failing when conversation contains many PDF documents by stripping document blocks alongside images before sending to the compaction API (anthropics/claude-code#26188)
Improved memory usage in long-running sessions by releasing API stream buffers, agent context, and skill state after use
Improved startup performance by deferring SessionStart hook execution, reducing time-to-interactive by ~500ms.
Fixed an issue where bash tool output was silently discarded on Windows when using MSYS2 or Cygwin shells.
Improved performance of @ file mentions - file suggestions now appear faster by pre-warming the index on startup and using session-based caching with background refresh.
Improved memory usage by trimming agent task message history after tasks complete
Improved memory usage during long agent sessions by eliminating O(n²) message accumulation in progress updates
Fixed the bash permission classifier to validate that returned match descriptions correspond to actual input rules, preventing hallucinated descriptions from incorrectly granting permissions
Fixed user-defined agents only loading one file on NFS/FUSE filesystems that report zero inodes (anthropics/claude-code#26044)
Fixed plugin agent skills silently failing to load when referenced by bare name instead of fully-qualified plugin name (anthropics/claude-code#25834)
Search patterns in collapsed tool results are now displayed in quotes for clarity
Windows: Fixed CWD tracking temp files never being cleaned up, causing them to accumulate indefinitely (anthropics/claude-code#17600)
Use ctrl+f to kill all background agents instead of double-pressing ESC. Background agents now continue running when you press ESC to cancel the main thread, giving you more control over agent lifecycle.
Fixed API 400 errors ("thinking blocks cannot be modified") that occurred in sessions with concurrent agents, caused by interleaved streaming content blocks preventing proper message merging.
Simplified teammate navigation to use only Shift+Down (with wrapping) instead of both Shift+Up and Shift+Down.
Fixed an issue where a single file write/edit error would abort all other parallel file write/edit operations. Independent file mutations now complete even when a sibling fails.
Added last_assistant_message field to Stop and SubagentStop hook inputs, providing the final assistant response text so hooks can access it without parsing transcript files.
Fixed custom session titles set via /rename being lost after resuming a conversation (anthropics/claude-code#23610)
Fixed collapsed read/search hint text overflowing on narrow terminals by truncating from the start.
Fixed an issue where bash commands with backslash-newline continuation lines (e.g., long commands split across multiple lines with \) would produce spurious empty arguments, potentially breaking command execution.
Fixed built-in slash commands (/help, /model, /compact, etc.) being hidden from the autocomplete dropdown when many user skills are installed (anthropics/claude-code#22020)
Fixed MCP servers not appearing in the MCP Management Dialog after deferred loading
Fixed session name persisting in status bar after /clear command (anthropics/claude-code#26082)
Fixed crash when a skill's name or description in SKILL.md frontmatter is a bare number (e.g., name: 3000) — the value is now properly coerced to a string (anthropics/claude-code#25837)
Fixed /resume silently dropping sessions when the first message exceeds 16KB or uses array-format content (anthropics/claude-code#25721)
Added chat:newline keybinding action for configurable multi-line input (anthropics/claude-code#26075)
Added added_dirs to the statusline JSON workspace section, exposing directories added via /add-dir to external scripts (anthropics/claude-code#26096)
Fixed claude doctor misclassifying mise and asdf-managed installations as native installs (anthropics/claude-code#26033)
Fixed zsh heredoc failing with "read-only file system" error in sandboxed commands (anthropics/claude-code#25990)
Fixed agent progress indicator showing inflated tool use count (anthropics/claude-code#26023)
Fixed image pasting not working on WSL2 systems where Windows copies images as BMP format (anthropics/claude-code#25935)
Fixed background agent results returning raw transcript data instead of the agent's final answer (anthropics/claude-code#26012)
Fixed Warp terminal incorrectly prompting for Shift+Enter setup when it supports it natively (anthropics/claude-code#25957)
Fixed CJK wide characters causing misaligned timestamps and layout elements in the TUI (anthropics/claude-code#26084)
Fixed custom agent model field in .claude/agents/*.md being ignored when spawning team teammates (anthropics/claude-code#26064)
Fixed plan mode being lost after context compaction, causing the model to switch from planning to implementation mode (anthropics/claude-code#26061)
Fixed alwaysThinkingEnabled: true in settings.json not enabling thinking mode on Bedrock and Vertex providers (anthropics/claude-code#26074)
Fixed tool_decision OTel telemetry event not being emitted in headless/SDK mode (anthropics/claude-code#26059)
Fixed session name being lost after context compaction — renamed sessions now preserve their custom title through compaction (anthropics/claude-code#26121)
Increased initial session count in resume picker from 10 to 50 for faster session discovery (anthropics/claude-code#26123)
Windows: fixed worktree session matching when drive letter casing differs (anthropics/claude-code#26123)
Fixed /resume failing to find sessions whose first message exceeds 16KB (anthropics/claude-code#25920)
Fixed "Always allow" on multiline bash commands creating invalid permission patterns that corrupt settings (anthropics/claude-code#25909)
Fixed React crash (error #31) when a skill's argument-hint in SKILL.md frontmatter uses YAML sequence syntax (e.g., [topic: foo | bar]) — the value is now properly coerced to a string (anthropics/claude-code#25826)
Fixed crash when using /fork on sessions that used web search — null entries in search results from transcript deserialization are now handled gracefully (anthropics/claude-code#25811)
Fixed read-only git commands triggering FSEvents file watcher loops on macOS by adding --no-optional-locks flag (anthropics/claude-code#25750)
Fixed custom agents and skills not being discovered when running from a git worktree — project-level .claude/agents/ and .claude/skills/ from the main repository are now included (anthropics/claude-code#25816)
Fixed non-interactive subcommands like claude doctor and claude plugin validate being blocked inside nested Claude sessions (anthropics/claude-code#25803)
Windows: Fixed the same CLAUDE.md file being loaded twice when drive letter casing differs between paths (anthropics/claude-code#25756)
Fixed inline code spans in markdown being incorrectly parsed as bash commands (anthropics/claude-code#25792)
Fixed teammate spinners not respecting custom spinnerVerbs from settings (anthropics/claude-code#25748)
Fixed shell commands permanently failing after a command deletes its own working directory (anthropics/claude-code#26136)
Fixed hooks (PreToolUse, PostToolUse) silently failing to execute on Windows by using Git Bash instead of cmd.exe (anthropics/claude-code#25981)
Fixed LSP findReferences and other location-based operations returning results from gitignored files (e.g., node_modules/, venv/) (anthropics/claude-code#26051)
Moved config backup files from home directory root to ~/.claude/backups/ to reduce home directory clutter (anthropics/claude-code#26130)
Fixed sessions with large first prompts (>16KB) disappearing from the /resume list (anthropics/claude-code#26140)
Fixed shell functions with double-underscore prefixes (e.g., __git_ps1) not being preserved across shell sessions (anthropics/claude-code#25824)
Fixed spinner showing "0 tokens" counter before any tokens have been received (anthropics/claude-code#26105)
VSCode: Fixed conversation messages appearing dimmed while the AskUserQuestion dialog is open (anthropics/claude-code#26078)
Fixed background tasks failing in git worktrees due to remote URL resolution reading from worktree-specific gitdir instead of the main repository config (anthropics/claude-code#26065)
Fixed Right Alt key leaving visible [25~ escape sequence residue in the input field on Windows/Git Bash terminals (anthropics/claude-code#25943)
The /rename command now updates the terminal tab title by default (anthropics/claude-code#25789)
Fixed Edit tool silently corrupting Unicode curly quotes (\u201c\u201d \u2018\u2019) by replacing them with straight quotes when making edits (anthropics/claude-code#26141)
Fixed OSC 8 hyperlinks only being clickable on the first line when link text wraps across multiple terminal lines.

v2.1.45

Tue, 17 Feb 2026 18:53:52 GMT

What's changed

Added support for Claude Sonnet 4.6
Added support for reading enabledPlugins and extraKnownMarketplaces from --add-dir directories
Added spinnerTipsOverride setting to customize spinner tips — configure tips with an array of custom tip strings, and optionally set excludeDefault: true to show only your custom tips instead of the built-in ones
Added SDKRateLimitInfo and SDKRateLimitEvent types to the SDK, enabling consumers to receive rate limit status updates including utilization, reset times, and overage information
Fixed Agent Teams teammates failing on Bedrock, Vertex, and Foundry by propagating API provider environment variables to tmux-spawned processes (anthropics/claude-code#23561)
Fixed sandbox "operation not permitted" errors when writing temporary files on macOS by using the correct per-user temp directory (anthropics/claude-code#21654)
Fixed Task tool (backgrounded agents) crashing with a ReferenceError on completion (anthropics/claude-code#22087)
Fixed autocomplete suggestions not being accepted on Enter when images are pasted in the input
Fixed skills invoked by subagents incorrectly appearing in main session context after compaction
Fixed excessive .claude.json.backup files accumulating on every startup
Fixed plugin-provided commands, agents, and hooks not being available immediately after installation without requiring a restart
Improved startup performance by removing eager loading of session history for stats caching
Improved memory usage for shell commands that produce large output — RSS no longer grows unboundedly with command output size
Improved collapsed read/search groups to show the current file or search pattern being processed beneath the summary line while active
[VSCode] Improved permission destination choice (project/user/session) to persist across sessions

v2.1.44

Mon, 16 Feb 2026 21:35:03 GMT

What's changed

Fixed auth refresh errors

v2.1.42

Fri, 13 Feb 2026 19:56:33 GMT

What's changed

Fixed /resume showing interrupt messages as session titles
Fixed Opus 4.6 launch announcement showing for Bedrock/Vertex/Foundry users
Improved error message for many-image dimension limit errors with /compact suggestion

v2.1.41

Fri, 13 Feb 2026 06:08:49 GMT

What's changed

Fixed AWS auth refresh hanging indefinitely by adding a 3-minute timeout
Added claude auth login, claude auth status, and claude auth logout CLI subcommands
Added Windows ARM64 (win32-arm64) native binary support
Improved /rename to auto-generate session name from conversation context when called without arguments
Improved narrow terminal layout for prompt footer
Fixed file resolution failing for @-mentions with anchor fragments (e.g., @README.md#installation)
Fixed FileReadTool blocking the process on FIFOs, /dev/stdin, and large files
Fixed background task notifications not being delivered in streaming Agent SDK mode
Fixed cursor jumping to end on each keystroke in classifier rule input
Fixed markdown link display text being dropped for raw URL
Fixed auto-compact failure error notifications being shown to users
Fixed permission wait time being included in subagent elapsed time display
Fixed proactive ticks firing while in plan mode
Fixed clear stale permission rules when settings change on disk
Fixed hook blocking errors showing stderr content in UI

v2.1.39

Tue, 10 Feb 2026 23:11:36 GMT

What's changed

Improved terminal rendering performance
Fixed fatal errors being swallowed instead of displayed
Fixed process hanging after session close
Fixed character loss at terminal screen boundary
Fixed blank lines in verbose transcript view

v2.1.38

Tue, 10 Feb 2026 00:53:32 GMT

What's changed

Fixed VS Code terminal scroll-to-top regression introduced in 2.1.37
Fixed Tab key queueing slash commands instead of autocompleting
Fixed bash permission matching for commands using environment variable wrappers
Fixed text between tool uses disappearing when not using streaming
Fixed duplicate sessions when resuming in VS Code extension
Improved heredoc delimiter parsing to prevent command smuggling
Blocked writes to .claude/skills directory in sandbox mode

v2.1.37

Sat, 07 Feb 2026 19:10:10 GMT

What's changed

Fixed an issue where /fast was not immediately available after enabling /extra-usage

v2.1.36

Sat, 07 Feb 2026 18:02:15 GMT

What's changed

Fast mode is now available for Opus 4.6. Learn more at https://code.claude.com/docs/en/fast-mode

v2.1.34

Fri, 06 Feb 2026 14:26:47 GMT

What's changed

Fixed a crash when agent teams setting changed between renders
Fixed a bug where commands excluded from sandboxing (via sandbox.excludedCommands or dangerouslyDisableSandbox) could bypass the Bash ask permission rule when autoAllowBashIfSandboxed was enabled

v2.1.33

Fri, 06 Feb 2026 01:47:21 GMT

What's changed

Fixed agent teammate sessions in tmux to send and receive messages
Fixed warnings about agent teams not being available on your current plan
Added TeammateIdle and TaskCompleted hook events for multi-agent workflows
Added support for restricting which sub-agents can be spawned via Task(agent_type) syntax in agent "tools" frontmatter
Added memory frontmatter field support for agents, enabling persistent memory with user, project, or local scope
Added plugin name to skill descriptions and /skills menu for better discoverability
Fixed an issue where submitting a new message while the model was in extended thinking would interrupt the thinking phase
Fixed an API error that could occur when aborting mid-stream, where whitespace text combined with a thinking block would bypass normalization and produce an invalid request
Fixed API proxy compatibility issue where 404 errors on streaming endpoints no longer triggered non-streaming fallback
Fixed an issue where proxy settings configured via settings.json environment variables were not applied to WebFetch and other HTTP requests on the Node.js build
Fixed /resume session picker showing raw XML markup instead of clean titles for sessions started with slash commands
Improved error messages for API connection failures — now shows specific cause (e.g., ECONNREFUSED, SSL errors) instead of generic "Connection error"
Errors from invalid managed settings are now surfaced
VSCode: Added support for remote sessions, allowing OAuth users to browse and resume sessions from claude.ai
VSCode: Added git branch and message count to the session picker, with support for searching by branch name
VSCode: Fixed scroll-to-bottom under-scrolling on initial session load and session switch

v2.1.32

Thu, 05 Feb 2026 17:47:50 GMT

What's changed

Claude Opus 4.6 is now available!
Added research preview agent teams feature for multi-agent collaboration (token-intensive feature, requires setting CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1)
Claude now automatically records and recalls memories as it works
Added "Summarize from here" to the message selector, allowing partial conversation summarization.
Skills defined in .claude/skills/ within additional directories (--add-dir) are now loaded automatically.
Fixed @ file completion showing incorrect relative paths when running from a subdirectory
Updated --resume to re-use --agent value specified in previous conversation by default.
Fixed: Bash tool no longer throws "Bad substitution" errors when heredocs contain JavaScript template literals like ${index + 1}, which previously interrupted tool execution
Skill character budget now scales with context window (2% of context), so users with larger context windows can see more skill descriptions without truncation
Fixed Thai/Lao spacing vowels (สระ า, ำ) not rendering correctly in the input field
VSCode: Fixed slash commands incorrectly being executed when pressing Enter with preceding text in the input field
VSCode: Added spinner when loading past conversations list

v2.1.31

Wed, 04 Feb 2026 00:44:13 GMT

What's changed

Added session resume hint on exit, showing how to continue your conversation later
Added support for full-width (zenkaku) space input from Japanese IME in checkbox selection
Fixed PDF too large errors permanently locking up sessions, requiring users to start a new conversation
Fixed bash commands incorrectly reporting failure with "Read-only file system" errors when sandbox mode was enabled
Fixed a crash that made sessions unusable after entering plan mode when project config in ~/.claude.json was missing default fields
Fixed temperatureOverride being silently ignored in the streaming API path, causing all streaming requests to use the default temperature (1) regardless of the configured override
Fixed LSP shutdown/exit compatibility with strict language servers that reject null params
Improved system prompts to more clearly guide the model toward using dedicated tools (Read, Edit, Glob, Grep) instead of bash equivalents (cat, sed, grep, find), reducing unnecessary bash command usage
Improved PDF and request size error messages to show actual limits (100 pages, 20MB)
Reduced layout jitter in the terminal when the spinner appears and disappears during streaming
Removed misleading Anthropic API pricing from model selector for third-party provider (Bedrock, Vertex, Foundry) users

v2.1.30

Tue, 03 Feb 2026 18:05:59 GMT

What's changed

Added pages parameter to the Read tool for PDFs, allowing specific page ranges to be read (e.g., pages: "1-5"). Large PDFs (>10 pages) now return a lightweight reference when @ mentioned instead of being inlined into context.
Added pre-configured OAuth client credentials for MCP servers that don't support Dynamic Client Registration (e.g., Slack). Use --client-id and --client-secret with claude mcp add.
Added /debug for Claude to help troubleshoot the current session
Added support for additional git log and git show flags in read-only mode (e.g., --topo-order, --cherry-pick, --format, --raw)
Added token count, tool uses, and duration metrics to Task tool results
Added reduced motion mode to the config
Fixed phantom "(no content)" text blocks appearing in API conversation history, reducing token waste and potential model confusion
Fixed prompt cache not correctly invalidating when tool descriptions or input schemas changed, only when tool names changed
Fixed 400 errors that could occur after running /login when the conversation contained thinking blocks
Fixed a hang when resuming sessions with corrupted transcript files containing parentUuid cycles
Fixed rate limit message showing incorrect "/upgrade" suggestion for Max 20x users when extra-usage is unavailable
Fixed permission dialogs stealing focus while actively typing
Fixed subagents not being able to access SDK-provided MCP tools because they were not synced to the shared application state
Fixed a regression where Windows users with a .bashrc file could not run bash commands
Improved memory usage for --resume (68% reduction for users with many sessions) by replacing the session index with lightweight stat-based loading and progressive enrichment
Improved TaskStop tool to display the stopped command/task description in the result line instead of a generic "Task stopped" message
Changed /model to execute immediately instead of being queued
[VSCode] Added multiline input support to the "Other" text input in question dialogs (use Shift+Enter for new lines)
[VSCode] Fixed duplicate sessions appearing in the session list when starting a new conversation

v2.1.29

Sat, 31 Jan 2026 23:37:51 GMT

What's changed

Fixed startup performance issues when resuming sessions that have saved_hook_context

v2.1.27

Fri, 30 Jan 2026 20:38:53 GMT

What's changed

Added tool call failures and denials to debug logs
Fixed context management validation error for gateway users, ensuring CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 avoids the error
Added --from-pr flag to resume sessions linked to a specific GitHub PR number or URL
Sessions are now automatically linked to PRs when created via gh pr create
Fixed /context command not displaying colored output
Fixed status bar duplicating background task indicator when PR status was shown
VSCode: Enabled Claude in Chrome integration
Permissions now respect content-level ask over tool-level allow. Previously allow: ["Bash"], ask: ["Bash(rm *)"] allowed all bash commands, but will now permission prompt for rm.
Windows: Fixed bash command execution failing for users with .bashrc files
Windows: Fixed console windows flashing when spawning child processes
VSCode: Fixed OAuth token expiration causing 401 errors after extended sessions

v2.1.25

Thu, 29 Jan 2026 21:13:33 GMT

What's changed

Fixed beta header validation error for gateway users on Bedrock and Vertex, ensuring CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 avoids the error

v2.1.23

Thu, 29 Jan 2026 01:09:51 GMT

What's changed

Added customizable spinner verbs setting (spinnerVerbs)
Fixed mTLS and proxy connectivity for users behind corporate proxies or using client certificates
Fixed per-user temp directory isolation to prevent permission conflicts on shared systems
Fixed a race condition that could cause 400 errors when prompt caching scope was enabled
Fixed pending async hooks not being cancelled when headless streaming sessions ended
Fixed tab completion not updating the input field when accepting a suggestion
Fixed ripgrep search timeouts silently returning empty results instead of reporting errors
Improved terminal rendering performance with optimized screen data layout
Changed Bash commands to show timeout duration alongside elapsed time
Changed merged pull requests to show a purple status indicator in the prompt footer
[IDE] Fixed model options displaying incorrect region strings for Bedrock users in headless mode

v2.1.22

Wed, 28 Jan 2026 06:59:58 GMT

What's changed

Fixed structured outputs for non-interactive (-p) mode