Claude Code v2.1.319 Release Notes — What's New

What's changed

Changed auto mode with telemetry or feature flags off, including behind LLM gateways: calls the server can't check are asked about or denied, with no fallback to the built-in classifier; set CLAUDE_CODE_AUTO_MODE_SERVER=0 to keep using it (Bedrock, Vertex and Foundry are unchanged)
Changed auto mode behind an LLM gateway: CLAUDE_CODE_AUTO_MODE_SERVER=1 turns on the server-side check even with CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS set; if managed settings set the latter, they must set the 1 too
Added support for MCP tasks in the terminal: when an MCP server runs a tool call as a task, Claude Code moves it to the background right away and tells Claude the result when it finishes
Added the CLAUDE_CODE_DISABLE_MCP_TASK_BACKGROUND environment variable to make Claude Code wait for an MCP task inside its tool call instead of moving it to the background right away
Added permissions.denyInsteadOfPrompting setting: a tool call that would wait on a permission prompt is denied and the turn continues, in terminal sessions, subagents and teammates
Added /claude-api latency-optimize to find where your Claude API code makes people wait and try faster settings against your eval
Added the CLAUDE_CODE_DISABLE_FEATURE_FLAGS environment variable, which stops feature-flag fetching without turning off telemetry; every flag then uses its built-in default
Added spend for today, this week and this month to /usage for developers behind a Claude apps gateway who have no spend limit, when the gateway runs this version or later
Added admin.pooled_conflict_rule and admin.pooled_priority_order to the Claude apps gateway, to set which pooled group budget pays first for a developer in several groups
Added an optional login_notice setting to the Claude apps gateway that shows an operator-defined message on the gateway's browser verification page and on Claude Code's sign-in screen
Added CLAUDE_GATEWAY_LOG_FORMAT=json to the Claude apps gateway: operational log lines become JSON with severity, time and message, for log collectors that read the level from a field
Added a Claude apps gateway boot warning for a case where another policy's availableModels also allows a custom model id that one policy lists by name
Added start-up warnings to the Claude apps gateway for policies with no desktopHome that rely on coworkTabEnabled: false or chatSessionRetentionDays, ahead of Claude Desktop's November 10 change
Added a warning when your claude.ai login ends and Claude Code continues on the sign-in from ant auth login, which bills usage to your Claude Console organization
Added a line at startup naming the Claude Console organization that is billed in a case where Claude Code uses the sign-in from ant auth login
Added an "Earlier in this session" row to /tasks that lists finished subagents, so you can reopen one and message it even after it leaves the list or you restart
Added a note to /loop confirmations in cloud sessions that a timer stops with its container, with an offer of a loop that survives
Fixed MCP servers on the older handshake failing to connect, or returning empty results, because Claude Code declared an extension that it only uses with newer servers
Fixed a long-running MCP tool call on a claude.ai connector sometimes never reporting its result after --resume
Fixed a session's diff failing to load on claude.ai and the mobile apps when the folder Claude Code runs in has a file or folder named HEAD
Fixed /diff showing "Diff unavailable" when a git repository has a file or folder named HEAD at its top level
Fixed the /diff pane opening blank in sessions where 64 or more turns edited files
Fixed slash commands typed after a leading space, tab or newline being sent to Claude as plain text instead of running
Fixed a request that kept failing with a 401 refreshing your login on every retry and causing 401s in your other sessions
Fixed /context sending its full visual grid to Claude on every later turn; Claude now reads only the table
Fixed claude -p exiting 0 in auto mode when its actions were refused because no safety check was available: text and JSON output now exit 1
Fixed a case where Claude Code listed every project file at start on Linux for projects on a network file system (NFS, SMB, Lustre and similar)
Fixed a case where auto mode was wrongly refused when a client sent a model change and a request for auto mode back to back
Fixed /status showing "Auto mode server: Enabled" when the server-side review isn't reaching the session, for example behind an LLM gateway that drops it
Fixed Claude-drafted feedback, surveys and /feedback continuing to appear after the server refused feedback for your organization
Fixed Claude drafting feedback on third-party gateways, where it can't be sent
Fixed auto mode refusing actions without saying why when permission rules or autoMode settings are very large: it now explains and, unless autoMode deny rules are set, asks you in the terminal
Fixed a case where Bash deny and ask rules missed commands written with quoted words
Fixed subagent hand-back reports showing an internal marker and provenance note when expanded outside verbose mode
Fixed claude -p --resume with a prompt losing a deferred tool call when its MCP server is missing: the run now exits 1, keeps the call and refuses later input
Fixed a case where text was dropped from informational messages sent to SDK clients
Fixed a case where Agent SDK hosts got a generic exit-code error instead of a failed run's own error message when the disk was full
Fixed CLAUDE_CODE_RESUME_INTERRUPTED_TURN re-running a turn that was interrupted in plan mode when the session resumes in another permission mode
Fixed edits to a settings file being ignored when made within a few seconds of Claude Code writing that file
Fixed a config file left at the legacy name hiding your setup with no warning: Claude Code now says on stderr when a home holds two config files, and which is in use
Fixed ~/.claude.json, settings and edited files ending up empty or cut off when the disk fills during a save in a read-only folder or to a bind-mounted file (one session saving at a time)
Fixed Write ending the turn as a refusal when it couldn't read the file to overwrite
Fixed background Bash commands that finish almost instantly losing their output while being reported as completed
Fixed the Bash tool's diff of changed files missing a file that the command wrote just before it ended
Fixed a mistyped model name, such as opus-5-5, telling you to update Claude Code instead of suggesting the model you meant
Fixed a case where NotebookEdit changed the wrong cell when the notebook changed while a permission prompt was open
Fixed a ~0.5s hang after pressing Enter on the /login success screen: the dialog now dismisses immediately and the post-login refresh runs in the background
Fixed Ctrl+G not opening the external editor while typing an "Other" answer to a question in screen reader mode
Fixed Monitor's WebSocket watch failing with "could not resolve" behind a proxy when CLAUDE_CODE_PROXY_RESOLVES_HOSTS is set and the machine has no DNS of its own
Fixed claude plugin eval warnings suggesting max: 0 for a tool that must not be called, which could never pass
Fixed background plugin auto-update not installing a dependency added by the updated plugin version
Fixed Cmd+click not opening links in Ghostty over tmux in sessions opened from the agents view
Fixed a mod's hot reload in .claude/skills missing a file that was deleted just after it appeared, and missing its return
Fixed /rewind failing with "No files were restored" when restoring code to a checkpoint from before /branch
Fixed the /claude-api skill saying Console web settings don't apply to Managed Agents sessions, and tightened its credential and permission examples

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