Claude

Claude developer documentation and changelog updates

Claude API Changelog Monitoring

Claude integrations depend on rapidly evolving model capabilities, developer tooling, authentication flows, and documentation conventions. This Claude API Changelog Monitoring page helps teams review those updates in one place so application behavior and AI-powered workflows stay aligned with current platform changes.

Consistent Claude API Changelog Monitoring helps product and engineering teams catch model, tooling, and documentation changes before they ripple into prompts, agent workflows, or customer-facing AI features. That makes it easier to plan updates deliberately instead of reacting after something drifts.

The benefit of Claude API Changelog Monitoring is simple: your team gets a repeatable way to watch changes, evaluate risk, and act before small upstream updates turn into customer-facing bugs. Claude developer documentation and changelog updates

Claude API down?

Claude API down? Soon we will add direct API status monitoring alongside Claude API Changelog Monitoring. For now, go to the official Anthropic or Claude status resources on the provider website. In the future, we plan to detect issues even before the public status page is updated.

Recent changes

Showing the last 10 changes from this feed.

07-17-2026

2.1.212

/fork now copies your conversation into a new background session (its own row in claude agents) while you keep working; the in-session subagent it used to launch is now /subtask Added claude auto-mode reset to restore the default auto-mode configuration, with a confirmation prompt (pass --yes to skip) Added a session-wide limit on WebSearch tool calls (default 200, tunable via CLAUDE_CODE_MAX_WEB_SEARCHES_PER_SESSION) to stop runaway search loops Added a per-session cap on subagent spawns (default 200, override with CLAUDE_CODE_MAX_SUBAGENTS_PER_SESSION) to stop runaway delegation loops; /clear resets the budget MCP tool calls running longer than 2 minutes now move to the background automatically so the session stays usable; configure the threshold or disable with CLAUDE_CODE_MCP_AUTO_BACKGROUND_MS Typing /resume in the agent view now opens a picker of past sessions — including sessions deleted from the list — and resumes your pick as a background session Fixed plan mode auto-running file-modifying Bash commands (e.g. touch, rm) without a permission prompt or SDK canUseTool callback Fixed worktree creation following a repository-committed symlink at .claude/worktrees, which could create files outside the repository Fixed a continue:false hook's halt being dropped when the tool fails or completes mid-stream, and hook infrastructure errors being misreported as user rejections Fixed SIGTERM during a running Bash tool orphaning the command's process tree in print/SDK mode; the CLI now aborts the turn, kills the tree, and exits 143 Fixed /background and claude --bg failing with "EUNKNOWN: unknown error, uv_spawn" on Windows when Group Policy blocks PowerShell 5.1; the daemon now prefers PowerShell 7 Fixed shell mode (!) not executing commands containing file paths while the path autocomplete popup was open Fixed auto-mode denial notifications rendering broken characters when a long denial reason was truncated mid-emoji Fixed Ctrl+J not inserting a newline in the agent view dispatch input on terminals with extended key reporting, and surfaced the newline shortcut in the ? help overlay Fixed /ultrareview rejecting PR references like #123, PR 123, and pasted PR URLs; error hints now name the command you actually typed Fixed /ultrareview not fetching the branch from origin when it exists remotely; it now suggests the closest branch name on typos Fixed /ultrareview skipping the billing confirmation in a new conversation after /clear Fixed /ultrareview's "not a git repository" error on Claude Desktop now suggesting the project's repository folder instead of terminal commands Fixed hosted (host-managed) sessions failing at startup when repository settings configured mTLS certs, extra CA bundles, or OAuth scopes; these transport settings are now ignored with a warning Fixed a spurious "File has not been read yet" error when editing a file that had been read with offset/limit before resuming a session Fixed ExitWorktree failing with "no active EnterWorktree session" after resuming a session with --continue/--resume in print/SDK mode Fixed the workflow agent grid staying empty for Remote Control clients that join a session mid-run Fixed streaming-mode control requests being marked complete before their handler finished, which could lose the request on session restart Fixed background sessions created with /fork losing their live-parent protection after a state write failure Fixed reopening a stopped background session from the agent view failing silently — it now resumes the session, or shows why it can't and lets you force a restart Fixed agent teams: a stopping teammate could send the leader duplicate idle notifications when team initialization re-ran within a session Fixed the plan-approval dialog footer splitting "ctrl+g to edit in " apart when the file path is long Fixed the welcome banner keeping its old panel widths after a combined width+height terminal resize in fullscreen mode Fixed diff previews losing their line numbers and +/- markers in narrow layouts Fixed @-mentions attaching nothing after a partial file read, plugin uninstall targeting the wrong marketplace, and false "Command timed out" on exit code 143 Fixed OpenTelemetry HTTP exports being rejected with 411/400 by Azure Monitor and other endpoints that don't accept chunked transfer encoding Fixed OTLP event log records missing trace_id/span_id when TRACEPARENT is set in SDK/headless mode Fixed conversations with many images incorrectly failing with "Request too large" errors, and improved the error message to explain the actual cause Fixed web search and web fetch returning "API Error" text as search results or page content when the API was overloaded Improved web search and web fetch reliability by retrying 529 errors and rate-limited requests with bounded backoff Improved prompt caching: the mid-conversation system block now works behind LLM gateways and custom base URLs (Bedrock, Vertex, 1P) Improved background agent attach: cold-attaching now instantly shows the formatted transcript while the session boots, instead of a blank wait Reduced token usage in inter-agent messaging: SendMessage bodies are no longer duplicated into replayed history and tool results Changed /fork to name the copy after your prompt when the session has no title, so the row is recognizable in the agent view Changed bare /btw to reopen the side-question panel on your most recent exchange so you can browse earlier answers Changed the ← footer hint to pulse N done for a moment when a background agent finishes while nothing needs your input Deprecated the Task tool's mode parameter (now ignored); subagents inherit the parent session's permission mode by default Changed Enterprise forceLoginMethod to be enforced for VS Code extension, SDK, setup-token, and install-github-app logins, not just the terminal Changed session transcripts to record the reasoning effort level on each assistant message Changed headless/SDK sessions to apply a set_model control request mid-turn; the next model round-trip uses the new model instead of waiting for the next turn Changed agent view / claude agents --json: sessions waiting on a sandbox, MCP-input, or managed-settings prompt now show as "Needs input" instead of "Working" Updated the auth status panel title from "Cloud authentication" to "Authentication" Corrected an earlier release note (2.1.200): tmux through the 3.6 series lacks synchronized output; newer tmux with support is detected automatically

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07-16-2026

2.1.211

Added --forward-subagent-text flag and CLAUDE_CODE_FORWARD_SUBAGENT_TEXT environment variable to include subagent text and thinking in stream-json output Fixed permission previews relayed to chat channels not neutralizing bidirectional-override, zero-width, and look-alike quote characters, so tool inputs cannot visually alter the approval message Fixed auto mode overriding a PreToolUse hook's ask decision for unsandboxed Bash — a hook ask now floors the decision at a prompt Fixed parallel Claude Code sessions all logging out simultaneously after wake-from-sleep when many sessions share one credential store Fixed plugin MCP servers not reconnecting after an idle web session woke, leaving MCP calls failing until the next message Fixed Claude Code on Vertex and Bedrock attempting the default Opus model at startup and printing a spurious fallback notice when a model is explicitly configured Fixed subagents spawned with an explicit model override reverting to the parent's model when resumed or sent a follow-up message Fixed nested .claude/rules/*.md files loading even when setting sources exclude project settings Fixed file upload validation: filenames ending in a DOS device suffix (.prn) or trailing dot are now accepted, and files with multiple hard links are refused Fixed file uploads to Claude in Chrome from remote and CLI sessions Fixed edits that leave the input as "?" being silently swallowed and toggling the shortcuts panel Fixed a startup hang when the Claude in Chrome extension is enabled but Chrome is not running Fixed a 300ms delay revealing async content (Settings tabs, Stats, diff views, and other loading states) Fixed reopening a just-stopped background session from the agents view starting a blank conversation under the same session id Fixed /loop hiding the session from /resume after a single use Fixed screen reader users losing the audible terminal bell after /terminal-setup or onboarding terminal setup Fixed background jobs on LLM gateway auth (ANTHROPIC_AUTH_TOKEN + ANTHROPIC_BASE_URL) coming back "Not logged in" after the daemon respawns them Fixed claude agents jobs becoming permanently undeletable when git no longer recognizes their worktree — the row now shows why the delete was refused instead of silently reappearing Fixed /clear not resetting the session cost counter — the statusline's cost now starts at $0 after /clear Fixed Claude in Chrome setup pages failing to open in the browser on Windows Fixed headless print-mode sessions on Windows crashing or silently exiting when stdin is unreadable Fixed background session titles in the agents view showing the naming model's refusal text when the prompt contains a link Fixed background agents killed by the user auto-respawning, and revived agents re-running stale prompts from old sessions Fixed routines with no schedule reporting a next run time in the year 1 Hardened synced skill/plugin directory naming on Windows and kept CCR web fetch/search proxies working after /clear Improved terminal layout and rendering performance Improved background agent result reporting — Claude now reports the status of still-running agents and waits for the real completion instead of fabricating results Improved the memory index over-limit warning to measure only loaded content, excluding frontmatter and HTML comments Updated integer environment variables (timeouts, token budgets, retry counts) to accept scientific notation and digit-separator spellings like 1e6 and 64_000 Updated documentation links to the current docs sites Changed "always allow" permission rules to save at the repository root, so approvals granted in a git worktree persist across sessions and worktrees Changed /usage-credits to ask for confirmation before sending a request to organization admins Changed Vim mode s and S (substitute char/line) to work in NORMAL mode, matching vim behavior [VSCode] Updated the Remote Control banner to describe what it does Claude in Chrome: hardened file-upload path validation Claude in Chrome: save_to_disk on screenshot actions now writes the image to disk and returns the path; previously it did nothing Fixed a prompt-caching regression on Bedrock, Vertex, Mantle, and Foundry that billed the trailing system context block as fresh input tokens on every request.

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07-14-2026

2.1.210

Added a live elapsed-time counter to the collapsed tool summary line so long-running tool calls visibly tick instead of looking stuck Added a startup warning for Write(path), NotebookEdit(path), and Glob(path) permission rules — use Edit(path) or Read(path) instead Fixed isolation: 'worktree' subagents being able to run git-mutating commands against the main repo checkout instead of their own isolated worktree Fixed the ultracode keyword opt-in firing on non-human-originated input such as webhook payloads and relayed PR comments Fixed a rendered text fragment leaking into crash telemetry when a UI component returned content outside a styled text element Fixed paste markers leaking into external editors opened from Claude Code, which could appear as stray È/É characters around pasted text Fixed claude attach sometimes failing with "job not found" or "agent is still starting" errors during session transitions — attach now waits for the daemon to settle, and terminal resizes during a slow attach are applied once it completes Fixed a session crash when a tool's result renderer returned a numeric bigint value or plain text instead of a UI element Fixed a hook callback timeout being misreported to the model as a user rejection, which made unattended sessions stop and wait Fixed Claude assuming a cd took effect after its command was moved to the background; the tool result now states the working directory is unchanged Fixed plugin-provided MCP servers being torn down when MCP servers are re-synced mid-session Fixed plan approvals without edits being labeled "(edited by user)" and overwriting the plan file with a stale snapshot Fixed /doctor skipping its auto-mode-default proposal on Bedrock, Vertex, and Foundry, where auto mode no longer needs an opt-in Fixed Grep content mode claiming "No matches found" when paginating past the end of results Fixed unmatched $1/$2 positional placeholders in skills and commands being silently stripped; they are now preserved verbatim Fixed plugin cache writes leaving temp files behind on failure and failing on locked-file renames on Windows and network filesystems Fixed background workers crash-looping when a client resets its connection to the background service Fixed claude agents --effort ultracode not reaching dispatched sessions; the value was silently dropped Fixed pressing ← to open the agents view dropping the task tracker when returning to the session Fixed the agents dashboard retaining pasted images from abandoned reply drafts after their session was deleted Fixed killed background sessions leaving a permanent git worktree lock behind; the periodic sweep now releases locks whose owning process is gone Fixed SDK MCP servers registered via an initialize control request waiting until the next turn to start connecting Fixed returning to the agents view from a session leaving overlapping ghost frames with CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN=1 Fixed late-appearing .claude/* symlinks not being reconciled into the sandbox deny-write list Hardened the Agent tool against indirect prompt injection via content a subagent read Improved the Bash/PowerShell tool message when a command hits its timeout and is auto-backgrounded, so the model can distinguish a hang from an explicit background request Improved auto mode: the permission classifier now defaults to Sonnet 5 for external sessions, validated on the session's first request and pinned for the session Improved the bundled dataviz skill's chart color validation with perceptual OKLab color difference and recalibrated color-blindness thresholds Memory writes that leave a MEMORY.md index over its read limit now produce an explicit error instead of silent truncation Screen reader mode now announces permission mode changes aloud when cycling modes with Shift+Tab The agents footer hint now shows how many background agents are waiting on your input, with a brief color emphasis when the count changes Agent view: the session you pressed ← from stays visibly marked even after mouse hover or arrow keys move the selection Fable temporarily shows as unavailable in the advisor picker while a server-side issue causing Fable advisor failures is fixed

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07-14-2026

2.1.209

Fixed /model and other dialogs being blocked in claude agents background sessions (reverts an overly broad guard)

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07-14-2026

2.1.208

Added screen reader mode: opt-in plain-text rendering for screen reader users. Run claude --ax-screen-reader, set CLAUDE_AX_SCREEN_READER=1, or add "axScreenReader": true to settings. Added vimInsertModeRemaps setting: map two-key insert-mode sequences like jj to Escape in vim mode Added CLAUDE_CODE_PROCESS_WRAPPER: agent view and the background service now honor a corporate launcher by running every Claude Code self-spawn through a required wrapper executable Added mouse-click support for multi-select menus and "Other" input rows in fullscreen mode Fixed fast mode staying off after switching back to a model that supports it — it now restores automatically when enabled in settings Fixed replies typed to a background agent being lost when delivery fails — the text is now saved and delivered when the session restarts Fixed background-session attach failing permanently ("Couldn't start the background daemon") after an update replaced the binary a running claude agents process was launched from Fixed the context window (and auto-compact indicator) briefly resetting to 200k after the CLI auto-updates, causing a false "100% context used" when resuming long-context sessions Fixed supervised and background sessions crashing when a server closed an HTTP/2 connection with a GOAWAY while requests were in flight Fixed truncated stream-json/JSON output and missing result message when piping large responses from claude -p Fixed CLAUDE_CODE_MAX_OUTPUT_TOKENS and similar env vars silently using the mantissa of scientific-notation values (1e6 became 1) Fixed very large markdown tables stalling rendering or using excessive memory; tables over 200 rows show the first 200 with a "… N more rows" notice Fixed the Edit tool failing on files modified after reading when the target text still matches uniquely Fixed Read reporting empty files as "shorter than offset", Grep silently returning "No files found" for invalid regex patterns, Grep count mode under-reporting totals when paginated, and Glob crashing with an unclear error when the pattern, path, or working directory contained a null byte Fixed apiKeyHelper script failures being hidden behind a generic 401 after ~10 silent retries; the script's own error is now shown within 3 attempts Fixed Bedrock streaming requests failing with a misleading "Truncated event message received" when a gateway transforms the response — the error now names the content-type and points at the proxy Fixed /upgrade showing a login flow instead of the upgrade URL when the browser fails to open Fixed stream-json input killing the session on blank CRLF or whitespace-only lines from Windows-style SDK hosts Fixed headless stream-json sessions hanging permanently when a control_request carried a non-string set_model payload; the CLI now answers with an error response Fixed repeated "No completion record was found" notices on session resume — orphaned background tasks now collapse into a single summary Fixed Remote Control clients attaching to a terminal-hosted session not seeing background agents and workflow progress until a task started or stopped Fixed the Agent tool launching with no tools when a subagent's tools list resolves to nothing — it now returns a clear error naming the unrecognized entries Fixed /usage showing stale cached bars over fresher data, and /mcp not reclassifying placeholder servers after config edits Fixed "Change directory" in SDK hosts (e.g. Claude Desktop) failing with "A turn is in progress" on idle sessions that have a running background task Fixed the workflow save dialog showing ~/.claude/workflows/ instead of the CLAUDE_CONFIG_DIR location for user-scope saves Fixed /release-notes adding the viewed notes to the model's context — "Show all" previously injected the entire changelog into every subsequent request Fixed a memory leak in the agent view where pasted images were retained for the screen's lifetime after sending peek replies Fixed SDK sessions losing agents defined via the initialize request when a plugin refresh ran before the client attached Fixed several memory leaks in long sessions: MCP stdio server stderr accumulating up to 64 MB per server, LSP documents staying open indefinitely (now LRU with 50-doc cap), async hook output retained after backgrounding, and unbounded growth in headless/SDK sessions from large tool-result payloads Fixed a memory blowup when reading files with extremely long single lines using offset/limit — the read now returns a clean error instead of loading the whole line Fixed multi-second per-turn slowdowns in sessions with many permission deny/ask rules — rule matchers are now compiled once and cached Improved input responsiveness while agent task lists update — task updates no longer re-render the entire UI Reduced per-tool-call CPU overhead in print/SDK sessions with many MCP tools by caching tool-pool assembly (up to 7x faster tool rounds at high tool counts) Reduced memory usage by bounding the file edit read cache to 16 MB instead of pinning up to 1,000 full files Reduced session transcript size (up to 79x in edit-heavy sessions) and bounded checkpoint disk usage by pruning superseded file-history backups Reduced memory usage when resuming sessions with background agents or forks spawned from large conversations Completed background agents now stay listed in /tasks until cleanup instead of vanishing the moment they finish Attaching to a stopped background agent now shows its transcript immediately while the session warms up, instead of a blank "Session is starting" screen Background sessions: an older daemon no longer silently restarts workers spawned by a newer version onto the older binary Agent view: Ctrl+X now deletes renamed-branch worktrees, never destroys unpushed commits, keeps the session row when a worktree is kept, and reused worktree names reset to the current base Catastrophic removals (e.g. rm -rf ~) in commands containing $(…)/backticks/

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07-11-2026

2.1.207

Auto mode is now available without CLAUDE_CODE_ENABLE_AUTO_MODE opt-in on Bedrock, Vertex AI, and Foundry; disable via disableAutoMode in settings Fixed the terminal freezing and keystrokes lagging while streaming responses containing very long lists, tables, paragraphs, or code blocks Fixed remote managed settings from a non-interactive run (claude -p, the SDK) being permanently recorded as consented without ever showing the security consent dialog Fixed spurious prompt-injection warnings triggered by benign system-generated conversation updates Fixed the auto-updater overwriting a custom launcher script or symlink at ~/.local/bin/claude on every release; /doctor now reports an externally managed launcher Fixed compound commands with cd prompting for permission when the only output redirect was to /dev/null Fixed the transcript jumping above the start of the answer when a response finishes streaming Fixed extensions.worktreeConfig being left in the repo's .git/config (breaking go-git tools like tea) after the last worktree.sparsePaths worktree was removed Fixed malformed bracket patterns in rules globs, skill paths, .ignore, and .worktreeinclude breaking file reads, file suggestions, and worktree creation Fixed a crash loop in agent teams where a malformed teammate mailbox message caused repeated errors every second until the mailbox file was manually deleted Fixed background sessions auto-named by accepting a plan not showing that name on their agent-view row Fixed background sessions that entered a git worktree resuming blank after a cold reopen from the agent list Fixed Remote Control task status updates being lost when the connection recovered from a network interruption or credential refresh Fixed Remote Control sessions hosted by the desktop app not showing background agent and workflow progress on mobile and web Fixed Deep research runs labeling every Fetch-phase agent "unknown" — chips now show the source hostname Fixed Bedrock repeatedly requesting fresh AWS SSO credentials from IAM Identity Center on every API request Improved agent view: pasting the same text again now expands the collapsed [Pasted text #N] placeholder instead of adding a second one Improved agent view: blocked session peeks now lead with the question and show a worded staleness clock (waiting 3m) instead of the same timestamp twice Changed Bedrock, Vertex, and Claude Platform on AWS to default to Claude Opus 4.8 Changed auto mode to no longer read autoMode from .claude/settings.local.json (repo-resident); use ~/.claude/settings.json instead Fixed an indefinite hang on Windows when AWS credential resolution stalls (e.g. a stuck credential_process): the 60-second stall guard now fires instead of waiting forever. Plugin hooks/monitors/MCP headersHelper: ${user_config.*} in shell-form commands is now rejected (shell-injection fix). Hooks: use exec form (args array) or $CLAUDE_PLUGIN_OPTION_; monitors and headersHelper: read the value inside the script (config file or the server's env block). Plugin option values (pluginConfigs) are no longer read from project-level .claude/settings.json; only user, --settings, and managed settings are honored Fixed /usage-credits amount inputs silently stripping malformed values (e.g. a pasted timestamp) to digits; malformed amounts are now rejected with an error, and amounts over $1,000 require a typed confirmation

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07-09-2026

2.1.206

Added directory path suggestions to /cd, matching /add-dir behavior Added a /doctor check that proposes trimming checked-in CLAUDE.md files by cutting content Claude could derive from the codebase /commit-push-pr now auto-allows git push to the repo's configured push remote (remote.pushDefault, or the sole remote when only one is configured) in addition to origin Gateway: /login now supports Anthropic-operated public gateway endpoints EnterWorktree now asks for confirmation before entering a git worktree outside the project's .claude/worktrees/ directory Background agents now upgrade to a new version in the background right after a Claude Code update, instead of paying a slow stale-session upgrade when you attach Fixed an expired login failing every model with a misleading "There's an issue with the selected model" error instead of prompting to run /login Fixed claude --resume and --continue not responding to keyboard input on startup Fixed MCP servers configured via --mcp-config or .mcp.json ignoring a per-server request_timeout_ms, which caused long-running MCP tool calls to time out at the 60s default in fresh sessions Fixed CLAUDE_CODE_EXTRA_BODY being silently ignored by claude agents / --bg background workers; the shell-exported override now follows the dispatching session Fixed OAuth MCP servers requiring manual re-authentication after a single failed token refresh Fixed --permission-prompt-tool pointing at an MCP server crashing with "MCP tool not found" on cold start before the server finishes connecting Fixed /model picker rows printing a price for a different model than the row named, and stopped quoting first-party list prices on providers that don't bill them Fixed server-provided model rows being misplaced in the /model picker when an entitlement or allowlist restriction drops the row they were positioned against Fixed desktop sessions getting stuck showing "running" after a slash command was sent mid-turn Fixed keyboard input being ignored in the agents view when a setup prompt appeared before a bare claude --resume on Windows Fixed claude rm leaving the removed job in the daemon roster, causing the row to reappear in claude agents Fixed /remote-control showing "Unknown command" when logged out — it now explains how to sign in Fixed left arrow not stepping back out of a phase or agent in the workflow detail view Fixed /status listing the same broken-install warning twice Fixed false "disused plugin" tips and skewed disuse telemetry for LSP plugins Fixed /doctor's update check to compare Homebrew installs against their cask's channel instead of the settings channel Fixed the fullscreen jump-to-bottom pill suggesting Ctrl+End on macOS, not showing rebound chords, and wrapping over the transcript Bedrock: fixed a multi-minute startup hang when using an awsCredentialExport helper on networks with restricted egress Improved /code-review findings quality on claude-opus-4-8 across all effort levels Improved agents view: status column now uses full terminal width instead of truncating at 64 characters Changed agents view: Ctrl+X now permanently removes a completed session, and sessions no longer render twice; deleted background jobs stay deleted

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07-08-2026

2.1.205

Added an auto mode rule that blocks tampering with session transcript files Fixed --json-schema silently producing unstructured output when the schema was invalid, and schemas using the format keyword being rejected Fixed a message sent while Claude was working being silently lost when the turn ended at the --max-turns limit Fixed Windows worktree removal deleting files outside the worktree when an NTFS junction or directory symlink existed inside it Fixed background agents staying shown as "failed" or "completed" in the agent list after being resumed with SendMessage Fixed background jobs flipping from "needs input" back to "working" in the agent list when the agent's turn contained no readable text Fixed claude attach erroring when a background agent was mid-upgrade restart instead of waiting for it to come back Fixed session-to-PR linking missing a PR created in a Bash call whose output exceeded the 30K inline limit Fixed claude mcp add-from-claude-desktop getting stuck when a server name contains unsupported characters; invalid names are now reported and remaining servers still import Fixed a plugin LSP server that fails to initialize preventing a valid LSP server from another plugin handling the same file extension Fixed a Windows crash when the directory Claude was launched from is deleted, locked, or unmounted while a command is running Fixed a crash when a file watcher was closed while a directory scan was still in flight Fixed project verify skills being rewritten on every session instead of only when a documented command changed Fixed the agent view rendering one line too high and clipping its header when the job list slightly overflowed the screen Fixed background tasks in the web and mobile Remote Control panels showing stale "Running" status by forwarding full task state on every membership change Improved auto mode to ask before running rm -rf on a variable it can't resolve from context Auto-update binary downloads now stream to disk instead of buffering in memory, cutting the updater's peak memory usage by roughly 400 MB Background task notifications now explicitly state that no human input has occurred, preventing fabricated in-transcript approvals from being acted on Improved agent view: sessions that edit, merge, comment on, or push to an existing PR now link it in claude agents Improved agent view: rows now show a colored state word and a classifier-written headline instead of raw tool call text, and the peek opens with full status including the exact ask for blocked sessions /doctor is now a full setup checkup that can diagnose and fix issues; /checkup is its alias Reserved the "Claude Browser" MCP server name (alongside "Claude Preview") ahead of the Claude Desktop pane rename; user-configured MCP servers can no longer register under either name Fixed Cowork VM-mode local-agent sessions failing to start with "Not logged in · Please run /login" on CLI 2.1.203+

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07-08-2026

2.1.203

Added a warning when your login is about to expire, so you can re-authenticate before background sessions are interrupted Added a grey ⏸ badge to the footer when in manual permission mode, making the active mode always visible Added the session's additional working directories to MCP roots/list, with notifications/roots/list_changed sent when the set changes Fixed opening or switching background agent sessions on macOS stalling for 15–20 seconds due to a false low-memory detection (regression in 2.1.196) Fixed background sessions becoming permanently unresponsive to attach, replies, and stop when the daemon's session token went stale — the session now recovers automatically Fixed returning to claude agents silently stopping running subagents and re-running the prompt from scratch — their work now carries over Fixed a memory and per-turn CPU regression in interactive sessions: the context-usage indicator no longer re-analyzes the entire transcript after every turn Fixed background agents inheriting a stale PATH from the daemon instead of the dispatching shell, causing missing tools on Windows Fixed background and agent-view sessions dropping a shell-exported ANTHROPIC_BASE_URL, which sent API keys to the default endpoint and failed with 401 Fixed Bash failing with "argument list too long" in repos with many git worktrees Fixed worktree-isolated subagents sometimes running shell commands in the parent checkout instead of their own worktree Fixed worktree creation rejecting nested repositories in multi-repo workspaces, leaving background sessions unable to isolate and edit Fixed background agents crash-looping when their working directory was deleted, replaced by a file, or became an invalid path — they now fail once with a clear error Fixed a background daemon auto-upgrade failure silently killing all running background sessions Fixed TaskStop and TaskOutput failing to find background agents spawned by another agent — errors now list running agents by id and description Fixed the claude agents composer discarding your typed message when a slash command isn't available there Fixed the agent list crashing when opening a stopped session whose conversation was already open in another session Fixed background sessions showing "Needs input" in the agent list after the question was already answered Fixed background agent startup failures showing only "exit_with_message" instead of the actual error Fixed background sessions ignoring effortLevel changes in settings.json when forked through the daemon Fixed attached background sessions ignoring CLAUDE_CODE_DISABLE_MOUSE and CLAUDE_CODE_DISABLE_MOUSE_CLICKS opt-outs Fixed /exit incorrectly warning about running background agents after all named agents had completed Fixed background sessions started from a non-git directory unable to edit files when a WorktreeCreate hook was configured Fixed the @ directory picker in claude agents not showing registered git worktrees Fixed background task output on Windows being permanently replaced by an empty file after /clear Fixed content jumping when scrolling up through long transcript history Fixed the terminal flickering and jumping while typing in bash mode when a shell-history suggestion was shown Fixed literal ^[[I / ^[[O escape codes being printed when reattaching to a background session Fixed LSP-only plugins being incorrectly flagged for disuse when their language servers deliver diagnostics or answer navigation requests Improved responsiveness while long responses stream: live-preview updates no longer re-render the whole screen Improved subagent behavior: agents are now less likely to re-delegate their entire task to another subagent Reduced binary size by ~7 MB and startup memory by ~7 MB by loading a large bundled dependency lazily instead of inlining it Changed left arrow to no longer close the background tasks, diff, and workflow detail views — press Esc instead Changed the empty claude agents view to always show the organized sections (Needs input / Working / Completed) with descriptions Removed the startup "claude command missing or broken" warnings — they now appear in /doctor and /status instead Removed a redundant navigation hint from the claude agents footer [VSCode] Added a Settings toggle for "Enable Remote Control for all sessions"

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07-08-2026

2.1.204

Fixed hook events not streaming during SessionStart hooks in headless sessions, which could cause remote workers to be idle-reaped mid-hook

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