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Claude Code Updates & Release Notes

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Claude Code von Anthropic

Claude Code 2.1.293: Claude Haiku 5.5 und mehrere Fehlerbehebungen

Claude Code 2.1.293 ergänzt Claude Haiku 5.5 (claude-haiku-5-5) als neues Standard-Haiku-Modell der Anthropic API mit 1M Kontext, führt agentType im subagentStatusLine-Payload sowie isDeferred für $.tool.register ein und behebt mehrere Fehler, darunter ein Memory Leak bei HTTP-MCP-Verbindungen, verlorene Nachrichten beim Verschieben in den Hintergrund und Probleme mit /model, /tui und SendMessage.

  • Added Claude Haiku 5.5 (claude-haiku-5-5), now the default Haiku model on the Anthropic API — 1M context, $0.10/$0.50 per Mtok ($0.50/$2.50 for prompts over 100K)
  • Added agentType to the subagentStatusLine payload, so scripts can tell custom subagent types apart
  • Added isDeferred to $.tool.register for mods: false lists the tool's schema in the prompt from the start instead of behind tool search
  • Fixed Claude sometimes treating its own last actions before a context compaction as done after it, and retracting or redoing finished work
  • Fixed a memory leak where an HTTP MCP connection kept every request it had sent until it closed
  • Fixed a message sent while Claude was working being lost when ← moved the session to the background; if a queued message can't move, ← now stays put and says so
  • Fixed /model effort ←/→ wrapping past the highest or lowest level, which could accidentally save Low as a model's default effort
  • Fixed /tui disconnecting Claude in Chrome in a session started with --chrome, and ignoring --no-chrome
  • Fixed Claude being told to continue or message subagents with SendMessage in sessions, including resumed ones, where a host, a permission rule or a --tools list removed that tool
  • Fixed subagents and --agent sessions being told a built-in tool was disabled for the whole session when only their own tool list left it out …

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Claude Code von Anthropic

Claude Code 2.1.292

Claude Code 2.1.292 ergänzt --marketplace <source> für claude plugin install, einen effort-Parameter für das Agent-Tool, die Umgebungsvariable CLAUDE_CODE_OVERLOADED_RETRY_BASE_DELAY_MS, neue Mod-Hooks sowie mehrere Sicherheitskorrekturen bei Sandbox, Berechtigungen und Dateizugriffen.

  • Added --marketplace <source> to claude plugin install: adds the marketplace if needed, under the same policy checks as claude plugin marketplace add, then installs the plugin from it
  • Added an effort parameter to the Agent tool, so Claude runs a sub-agent at the effort level you ask for
  • Added CLAUDE_CODE_OVERLOADED_RETRY_BASE_DELAY_MS environment variable to set a longer base delay for the backoff when retrying an overloaded (529) request
  • Added prompt.autocomplete, an event a mod hooks to add its own rows to the prompt box's autocomplete list
  • Added prompt caching to $.model.complete for mods: prompt and system take blocks of text, and cache: true on a block caches the request up to it
  • Added workflow agents to the agent.spawn mod hook, with their run and index, so a mod can refuse them
  • Fixed subagent definitions with permissionMode: auto entering auto mode when auto mode is unavailable (disabled by settings, circuit breaker, or a model that doesn't support it)
  • Fixed sandboxed commands being able to read the staged file copies of /ultrareview uploads under ~/.claude/seed-admin
  • Fixed a managed sandbox read-deny path (and user ones beside it) that appears or re-points mid-session not dropping project grants inside it or ending credential injection from files it covers
  • Fixed a notebook or PDF read on macOS and Windows being able to return a file outside what was approved, through a link swapped in mid-read …

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Claude Code von Anthropic

Claude Code 2.1.291

Claude Code 2.1.291 behebt zwei Regressionen: verlorene Antworten auf Berechtigungsabfragen in Cloud-Sitzungen (seit 2.1.290) und verlorene letzte Nachrichten beim Beenden einer Sitzung (seit 2.1.288).

  • Fixed a regression in 2.1.290 where cloud sessions could drop answers to permission prompts
  • Fixed a regression in 2.1.288 where the last messages of a session could be lost when quitting

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Claude Code von Anthropic

Claude Code 2.1.290

Claude Code 2.1.290 erweitert Mod- und Plugin-Hooks (u. a. serverToolUses, agentId, ceiling), ergänzt claude attach <name> und claude logs <name>, neue /claude-api managed-agents-onboard-Befehle, einen Deny-Button auf der Gateway-Anmeldeseite sowie neue Warnungen zu Managed Settings.

  • Added serverToolUses to the result of a mod's turn.step hook: the tool calls the API ran itself (the advisor), each with its id, name, input, start and end
  • Added agentId to the tool.check event of plugin hooks, so a hook can tell a subagent's permission check from the main session's
  • Added ceiling to the question and verdict a mod's tool.check hook reads, naming the approval an organization requires for a tool
  • Added ThemeKey and Color types to the plugin hooks typings, so an editor lists the theme colors a mod's drawing can name
  • Added to claude plugin validate: each hook a mod registers at a gating site is listed with whether it has a .catch (gatingHooks under --json)
  • Added a Deny button to the Claude apps gateway's sign-in approval page: it ends the pending sign-in, so the waiting terminal stops within seconds
  • Added claude attach <name> and claude logs <name>: part of a session name works in place of the id
  • Added /claude-api managed-agents-onboard <url> to set up the Managed Agents pattern a page describes as ant apply files
  • Added /claude-api managed-agents-onboard <quickstart-name> to build a Console quickstart template, such as deep-researcher, with the ant CLI
  • Added a warning when a managed settings file is a link to a file outside the managed settings folder
  • Added a /status and doctor warning when managed settings ignore user-configured sandbox allowRead paths or allowed domains …

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Claude Code von Anthropic

Claude Code 2.1.289

Claude Code 2.1.289 behebt zahlreiche Fehler bei Plugins, Mods und Terminal-Darstellung sowie Sicherheitsprobleme bei Deny-Regeln (u. a. Read über Symlinks) und macht große Dateien in Plugin-Code-Panes schneller zugänglich.

  • Fixed a deny or ask rule on a nested part of a compound shell command not holding over a user-installed mod's approval on managed machines
  • Fixed the terminal freezing on short code blocks with many unclosed <script> tags or deeply nested ${ substitutions
  • Fixed Read deny rules not applying to files @-mentioned, changed, or selected in the IDE through a symlink
  • [VSCode] Reverted a 2.1.288 change to claude auth status that may have made sign-outs more frequent
  • Improved how quickly large files open in a plugin code pane by laying the highlighted view out once at its final width
  • Fixed plugin list, plugin eval and plugin update showing a stale copy of a plugin installed from a local folder marketplace, and hot reload for a symlinked --plugin-dir
  • Fixed installed mods not loading in the first session after an upgrade
  • Fixed a plugin's rows above the prompt showing a stale row while the Background tasks dialog was open in fullscreen
  • Fixed plugin panes drawing nothing when a link used a localhost address, an @ in its path, an uppercase host or a file: path
  • Fixed a user-installed plugin being able to rewrite the descriptions of an organization-managed MCP server's sign-in tools
  • Fixed a freeze or forced quit at launch when a plugin drew a Box with a border style the terminal does not know
  • Fixed supervised and background sessions ending when a plugin's on-screen handler threw asynchronously …

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Claude Code von Anthropic

Claude Code 2.1.288

Claude Code 2.1.288 bringt unter anderem $.ui.selection() für Mods, eine Wiederherstellung mit Pfeil-hoch nach Ctrl+C, --max-findings für /code-review, Ctrl+F zur Sitzungssuche in der Agentenansicht und Korrekturen bei API-Timeouts, Auto-Compaction und --resume.

  • Added $.ui.selection() for mods: returns the text you last selected in fullscreen mode and, when the selection lies within one transcript row, that row
  • Added a built-in gh api to cloud sessions whose image has no GitHub CLI, and fixed the built-in sending control characters from file names, jq filters or GitHub errors to the terminal
  • Added recovery for a prompt cleared with Ctrl+C: pressing Up on the empty prompt brings the draft back, including pasted text and images
  • Added a re-authenticate prompt when an MCP server asks for more OAuth scope during a tool call
  • Added --max-findings <n>|all to /code-review to report more or fewer findings than the usual limit; the choice is reused until you pass --max-findings default
  • Added Ctrl+F to find a session by name and Alt+↑/↓ to jump between groups in the agents view; both, and rename, can be rebound in keybindings.json
  • Added a screen reader mode announcement of the new permission mode when you approve a plan, including with Shift+Tab
  • Fixed mid-response API timeouts failing the turn: non-interactive sessions and subagents now continue from the partial response, and thinking-only responses are retried
  • Fixed long conversations failing with "Prompt is too long" instead of auto-compacting when the last reply reported zero token usage
  • Fixed --resume sometimes dropping files and other context that a compaction had just restored …

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Claude Code von Anthropic

Claude Code 2.1.287

Claude Code 2.1.287 führt Claude Mods für tiefergehende Plugin-Anpassungen sowie den eingebauten Mod „You should know“ ein, ergänzt einen n:<text>-Filter in der Agentenansicht, URL-Abfragen von MCP-Servern und prompt_text im OpenTelemetry-Event und behebt mehrere Fehler.

  • Added Claude Mods: plugins may now modify deeper behavior
  • Added You should know, a built-in mod where a side agent watches your back and flags things you or Claude might miss. Turn it on with /plugin enable cc-plugin-you-should-know@builtin (for first-party sessions with telemetry on)
  • Added an n:<text> filter to the agents view that matches session names and tasks; a filter now shows matches in collapsed sections and Enter opens the first match
  • Added prompt_text to the OpenTelemetry user_prompt event, a copy of prompt for backends that nest dotted keys; drop or mask it wherever you drop or mask prompt (anthropics/claude-code#70763)
  • Added URL prompts from MCP servers on the 2025-11-25 protocol, for example to sign in. If a server no longer connects after this update, add "bareElicitationCapability": true to its MCP config entry
  • Windows: Added a startup warning when denying the Bash tool also turns off the PowerShell tool, so Claude has no shell tool
  • Self-hosted runner: Added a built-in gh api (REST only) for sessions that use Anthropic-managed git on macOS and Linux machines where the GitHub CLI is not installed
  • Fixed fast mode staying off in remote sessions owned by an agent with no user account, even when the organization allows it
  • Fixed Remote Control not receiving messages for minutes at a time when a reconnect request got no response; it now gives up after 30 seconds and retries …

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Claude Code von Anthropic

Claude Code 2.1.286

Claude Code 2.1.286 zeigt bei gestapelten Berechtigungsabfragen einen Zähler wie „2 of 5“ an, unterstützt Mausklicks auf „N more“-Zeilen im Vollbildmodus und behebt Fehler bei --resume/--continue, Login, API-400-Fehlern, Gateway-Kostenanzeige und Modell-Fallback.

  • Added a count such as "2 of 5" to the permission prompt when several permission requests stack up
  • Added mouse support for the "N more" rows of lists in fullscreen mode: click one to jump to that end of the list, with hover and pressed states
  • Fixed several Claude Code processes and IDE extensions each opening a login browser when gcpAuthRefresh or awsAuthRefresh credentials expire
  • Fixed claude --resume and --continue sometimes losing every turn after a batch of parallel tool calls when the earlier session crashed or was killed
  • Fixed API 400 errors after a tool or hook returned an object, number or boolean instead of text, including in resumed sessions
  • Fixed cloud sessions with very large histories never waking up because the container was stopped while the transcript was still loading
  • Fixed the Claude apps gateway's spend meter pricing 1-hour prompt cache writes at the cheaper 5-minute rate, and counting only the first model call's input tokens on streamed turns that run a server-side tool such as web search
  • Fixed macOS sessions still showing "Not logged in" or "Login expired" after /login succeeds in another Claude Code window when a leftover ~/.claude/.credentials.json exists
  • Fixed every turn failing when the Anthropic API refuses the model your default or a model alias resolves to: Claude Code now retries once on the previous model of the same tier …

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Claude Code von Anthropic

Claude Code 2.1.285

Claude Code 2.1.285 ergänzt CLAUDE_CODE_DISABLE_WEB_FETCH, claude --desktop, claude plugin configure, die Managed Setting allowedProviders und weitere Optionen und behebt Fehler bei Subagents, SSH-Installationen und dem Start bei nicht lesbaren Managed Settings.

  • Added CLAUDE_CODE_DISABLE_WEB_FETCH environment variable to turn off the WebFetch tool
  • Added claude --desktop to open the Claude desktop app on the current directory, or on a session with --continue / --resume <id>
  • Added claude plugin configure <plugin> to show a plugin's options and which are unset, or save new values read from stdin with --values-stdin
  • Added <server>.<key>=<value> to claude plugin install --config, so a bundled .mcpb MCP server's own settings can be set at install time and it starts without visiting /plugin → Configure
  • Added allowedProviders managed setting to limit which API providers a machine may use (Anthropic API, a custom endpoint, Bedrock, Mantle, Vertex AI, Foundry, Claude Platform on AWS, or a Cloud gateway)
  • Added CLAUDE_CODE_NONSTREAMING_TIMEOUT_RETRIES environment variable to cap re-sends of a non-streaming fallback request that timed out
  • Fixed claude -p with CLAUDE_CODE_FORK_SUBAGENT=1: a subagent's own Agent call now runs in the foreground, so the subagent gets the child's result
  • Fixed plugin and marketplace installs and updates over SSH ignoring the ssh program set in GIT_SSH or in your git config's core.sshCommand
  • Fixed Claude Code refusing to start when the OS denies reading the managed settings file; it now warns and starts without that file's policies. Other read errors and unparseable files stop every session …

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Claude Code von Anthropic

Claude Code 2.1.284: Claude Sonnet 5.5 als Standard-Sonnet

Claude Code 2.1.284 fügt Claude Sonnet 5.5 (claude-sonnet-5-5) als neues Standard-Sonnet-Modell mit 1M Kontext hinzu und ergänzt unter anderem „Yes, but ask again next time“ im Auto-Modus, Dollarbeträge für das Gateway-Ausgabenlimit, /mcp reconnect all und /rate-limit-options.

  • Added Claude Sonnet 5.5 (claude-sonnet-5-5), now the default Sonnet model on the Anthropic API — 1M context, $2/$10 per Mtok with $0.20/Mtok cache reads
  • Added a "Yes, but ask again next time" answer to auto mode's prompt before a read outside the working directories, so you can allow that one read and still be asked about later ones
  • Added dollar amounts to the Claude apps gateway spend limit in /usage and the status line (for example "$271.40 / $500.00 spent this month") when the gateway runs this version or later; the status line's rate_limits.spend_limit also gains used_usd, limit_usd and period
  • Added effortSlider:decreaseEffort, increaseEffort and toggleUltracode keybinding actions, so the /effort slider's arrow and Tab keys can be rebound in keybindings.json
  • Added /rate-limit-options to /help and the command menu for claude.ai subscribers, so the usage-limit notices that mention it point to a command you can find
  • Added /mcp reconnect all in the interactive terminal to retry every MCP server that failed to connect or needs authentication at once
  • Added Claude apps gateway startup warnings when a managed policy's availableModels is empty, or leaves out the model Claude Code starts on without setting model or enforceAvailableModels …

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Claude Code 2.1.283

Claude Code 2.1.283 ergänzt unter anderem die Managed Settings availableModelsMatch und deniedModels, /doctor prompt-audit, den Header x-claude-code-prompt-id, einen mantle-Provider und einen Lasttestmodus für das Claude apps gateway sowie Korrekturen bei SDK-Sitzungen.

  • Added x-claude-code-prompt-id to the gateway hint headers so LLM gateways can group the requests that serve one user prompt; opt in with CLAUDE_CODE_GATEWAY_HINT_HEADERS=1
  • Added availableModelsMatch managed setting: with "exact", an availableModels entry allows only the model version it names, so new releases stay blocked until listed
  • Added deniedModels managed setting to block specific models, even when availableModels allows them
  • Added MCP tool, WebFetch and WebSearch outputs to the tool.output OpenTelemetry span event when OTEL_LOG_TOOL_CONTENT=1
  • Added /doctor prompt-audit (also /checkup prompt-audit) to audit your CLAUDE.md files, skills, agents and commands for prompting patterns written for older models
  • Added click-to-expand for truncated messages from your other sessions in fullscreen mode
  • Added path to --plugin-dir load-failure entries in the stream-json system/init plugin_errors, naming the directory that did not load
  • Added an opt-in load_test_mode block to the Claude apps gateway config: requests are built and signed but not sent upstream, and clients get a canned reply, so a deployment can be load tested
  • Added a mantle upstream provider to the Claude apps gateway for Amazon Bedrock's Mantle endpoint
  • Fixed SDK sessions losing a deferred tool call or finished tool result when a turn ended early, a held approval prompt after a worker restart, and a non-streaming fallback's result.usage …

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Claude Code 2.1.282

Version 2.1.282 ergänzt unter anderem die Einstellung maxProseWidth, Hinweise zu ignorierten Telemetrie-Variablen und eine Scrollleiste in der /feedback-Liste und behebt mehrere Fehler, etwa 400-Fehler bei nicht entschlüsselbaren Websuchergebnissen und verlorenes Extended Thinking bei fortgesetzten Sitzungen.

  • Added a maxProseWidth setting that caps the width of Claude's prose in wide terminals while tables and code blocks keep the full width
  • Added a startup notice, and /status and claude doctor entries, listing telemetry variables in a project's settings files that were ignored or that turned telemetry off
  • Added the allowClaudeInChromeWithManagedMcp managed setting to let claude --chrome run alongside an exclusive managed-mcp.json; the error shown when Chrome is blocked now names it
  • Added store.readiness_grace_seconds to the Claude apps gateway so /readyz can stay ready through a short Postgres outage such as a database failover
  • Added a scrollbar to the /feedback drafts list in fullscreen mode; it appears while the mouse is over the list
  • Fixed every request failing with a 400 error in conversations whose history holds web search results the API cannot decrypt (for example, from a turn answered through a third-party gateway)
  • Fixed more cases of continued or resumed sessions (--continue, --resume) re-sending earlier messages in a changed form, which could make the API drop Claude's earlier reasoning
  • Fixed earlier extended thinking being dropped when /model, /rename, /artifacts or another immediate slash command was used while Claude was working
  • Fixed continued or resumed conversations losing earlier extended thinking when relaunched with a --tools list that leaves out a built-in tool offered earlier in the conversation …

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Claude Code 2.1.281

Version 2.1.281 bringt vor allem neue Optionen für das Claude apps gateway (etwa assume_role und guardrail für Bedrock), "attribution": false in settings.json, MCP-URL-Mode-Elicitation, MCP-Prüfungen in claude plugin validate und eine Auto-Mode-Empfehlung in /insights.

  • Added Claude apps gateway support for newer Claude Desktop keys in desktop policy blocks, including blockReadsOutsideWorkingDirectories and disableBypassPermissionsMode
  • Added assume_role on Claude apps gateway Bedrock upstreams: the gateway calls Bedrock as an IAM role it assumes through STS, in another AWS account if needed, optionally one session per developer
  • Added guardrail: {id, version} on Claude apps gateway Bedrock upstreams to apply an Amazon Bedrock guardrail to every request sent through them (set it on all Bedrock upstreams or none)
  • Added telemetry.resource_attributes to the Claude apps gateway config, to put fixed labels on the telemetry of Claude Desktop and /login sessions
  • Added "attribution": false in settings.json to hide all commit and PR attribution; older CLI versions skip a settings file that holds it, so keep the object form in files shared across versions
  • Added MCP URL-mode elicitation on 2026-07-28 protocol connections, so servers can ask Claude Code to open a browser-based flow; no waiting dialog is left on screen when the server has no way to confirm completion
  • Added MCP server checks to claude plugin validate: it reports .mcp.json entries that would be silently dropped at load, undeclared ${user_config.*} references, and insecure URLs
  • Added an auto mode recommendation to /insights that estimates how many permission prompts auto mode could have handled in your recent sessions …

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Claude Code 2.1.280 mit Claude Opus 5.5

Version 2.1.280 fügt Claude Opus 5.5 (claude-opus-5-5) als neues Standard-Opus-Modell hinzu, erweitert die Mausunterstützung im Fullscreen-Modus und behebt Fehler bei Symlink-Schreibzugriffen, im Auto Mode und bei Write-Aufrufen.

  • Added Claude Opus 5.5 (claude-opus-5-5), now the default Opus model — 1M context, $4/$20 per Mtok with $0.20/Mtok cache reads
  • Added mouse support to more lists in fullscreen mode: the wheel scrolls the /skills list, and a skill's state options in /plugin can be clicked
  • Added CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH to change the 2,048-character cap on MCP tool descriptions and server instructions for every MCP server in the session
  • Added hook output sizes and the number of oversized outputs saved to a file to the hook_execution_complete OpenTelemetry event
  • Fixed writes through a symlinked path being judged by their in-tree spelling: the prompt names where the write lands, and acceptEdits, allow rules and auto mode no longer approve one landing outside
  • Fixed auto mode retrying an action over and over when a safety check declined to review it; the action is now denied once, noting that retrying won't help
  • Fixed auto mode denying actions over and over without pause when a safety check gave no answer; retries now back off, and the turn stops with a message after ten in a row
  • Fixed Write calls failing validation when a model sends path, file_text, file_content or a stray description instead of file_path and content …

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Claude Code 2.1.278: Auto Mode nutzt Server-Classifier

In Version 2.1.278 verwendet der Auto Mode für Claude-API- und Enterprise-Nutzer sowie auf Bedrock, Vertex, Foundry und Gateways standardmäßig den serverseitigen Classifier ohne Berechnung von Classifier-Overhead, und /status zeigt dazu eine neue Zeile „Auto mode server“.

  • Changed auto mode for Claude API and Enterprise users, and on Bedrock, Vertex, Foundry and gateways, to default to the server-side classifier, which does not charge for classifier overhead (CLAUDE_CODE_AUTO_MODE_SERVER=0 opts out on Bedrock, Vertex, Foundry and gateways); warns on billed fallback. See https://code.claude.com/docs/en/auto-mode-classifier-billing
  • Added an Auto mode server row to /status showing whether this session's auto mode classifier runs on the server

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Claude Code 2.1.277 mit AGENTS.md-Unterstützung

Version 2.1.277 liest in Projekten ohne CLAUDE.md stattdessen AGENTS.md, ergänzt Gateway-Optionen für Proxys und behebt mehrere Fehler, darunter Hänger bei claude -p und unerwartete Abmeldungen.

  • Added AGENTS.md support: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead; change it under "Project instructions" in /config
  • Added CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY=1 for Claude apps gateways whose only egress is a forward proxy: every outbound request hands the proxy the hostname instead of resolving it locally
  • Added an optional headers: map on Claude apps gateway upstreams, to send static headers to a proxy you run in front of a provider
  • Added a line saying a background task's update is waiting when it finishes while a panel such as /tasks is open
  • Fixed claude -p and Agent SDK sessions that could hang with no result after an internal error; they now report the error and exit with code 1
  • Fixed conversations failing every request with "text content blocks must be non-empty" when an earlier assistant turn held an empty text block beside other content, including after --resume
  • Fixed being unexpectedly logged out when an older Claude Code build (for example an IDE extension's bundled CLI) runs on the same machine as the current one
  • Fixed interactive start-up hanging or showing an error for ANTHROPIC_API_KEY users when ~/.claude.json holds a malformed customApiKeyResponses value
  • Fixed update checks erroring every 30 minutes, and claude update hanging when a minimum or maximum version is set, if a proxy returns an invalid version; a malformed minimumVersion is now ignored …

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Claude Code 2.1.276

Version 2.1.276 behebt einen Fehler aus 2.1.275, bei dem jede Anfrage mit einem 400-Fehler zu advisor_20260301 scheiterte, wenn ANTHROPIC_BASE_URL auf einen Proxy oder ein Gateway zeigt.

  • Fixed every request failing with 400 … Input tag 'advisor_20260301' when ANTHROPIC_BASE_URL points at a proxy or gateway (2.1.275 regression)

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Claude Code 2.1.275

Version 2.1.275 ergänzt unter anderem eine Send-now-Taste für Nachrichten in der Warteschlange, die Anzeige des angemeldeten Kontos beim Gateway-Login, die Synchronisierung von claude.ai-Skills und -Plugins sowie /plugin install <plugin> --marketplace <source> und behebt mehrere Fehler.

  • Added the signed-in account to Claude apps gateway sign-in: when the gateway names it, you confirm it before the credential is saved, and /status shows it
  • Added a send-now key (ctrl+enter, or ctrl+x ctrl+s) that interrupts the current turn and sends all queued messages at once; sent and queued messages show in gray until the model receives them
  • Added a startup warning when a configured otelHeadersHelper fails, so sessions that silently export no telemetry are noticed
  • Added syncing of the skills and plugins enabled on your claude.ai account to terminal sessions signed in with it; opt out with syncClaudeAiSkills: false or syncClaudeAiPlugins: false
  • Added /plugin install <plugin> --marketplace <source>, which offers to add the marketplace before installing the plugin
  • Fixed a restored memory file's age note changing between requests after a compaction or resume, which caused prompt cache misses
  • Fixed --forward-subagent-text stream-json and SDK output dropping the messages of subagents spawned by a context: fork skill, and of forked skills invoked by a subagent or another forked skill
  • Fixed @-mention file suggestions being buried below MCP resources when using a custom fileSuggestion command or typing @./@./
  • Fixed fullscreen mode placing background-task completion notices beneath a long turn's collapsed tool row instead of where they arrived; each notice now closes the open row …

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Claude Code von Anthropic

Claude Code 2.1.274

Version 2.1.274 fügt eine Warnung bei kritischer Speichernutzung, CLAUDE_CODE_MCP_STARTUP_WAIT_MS, zusätzliche OpenTelemetry-Daten, neue Gateway-Optionen und Klick-zum-Aufklappen für Agent-Nachrichten hinzu und behebt endlose Wiederholungen bei „unexpected tool_use_id“-Fehlern.

  • Added a visible warning when memory usage is critical, with steps to free memory or restart safely
  • Added CLAUDE_CODE_MCP_STARTUP_WAIT_MS to bound how long the first non-interactive turn waits for connecting MCP servers (0 = don't wait)
  • Added effort attribute to the claude_code.llm_request OpenTelemetry trace span, matching the api_request event
  • Added claude_code.managed_settings_resolved OTel event: managed-settings sources and policy helper state; redacted settings and digests with OTEL_LOG_MANAGED_SETTINGS=1
  • Added store.connect_timeout_seconds to the Claude apps gateway config to lengthen the Postgres connect timeout (default 5 seconds), and improved the boot error when the database is unreachable to point to store.postgres_url and the configured timeout
  • Added enduser.sub, the IdP subject, to the telemetry Claude Desktop and Cowork send through a Claude apps gateway
  • Added a Claude apps gateway warning when a replica has more requests open than the 256 it sends upstream at once, and a startup log line showing that limit
  • Added click-to-expand for collapsed teammate and agent messages in fullscreen mode
  • Fixed sessions getting stuck endlessly retrying "unexpected tool_use_id" 400 errors: corrupted transcripts now self-heal where possible, and otherwise a clear error (with a /rewind hint) ends the loop …

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Claude Code von Anthropic

Claude Code 2.1.273

Version 2.1.273 ergänzt optionale Request-Header für LLM-Gateways, eine Benachrichtigung bei getrennten MCP-Servern und das Forken von Remote-Control-Sitzungen aus der Claude-App und behebt mehrere Berechtigungs- und Einstellungsfehler.

  • Added x-claude-code-request-class, x-claude-code-agent-type, x-claude-code-prev-tool-durations, x-claude-code-compaction and x-claude-code-context-compacted request headers for LLM gateways; opt in with CLAUDE_CODE_GATEWAY_HINT_HEADERS=1
  • Added a notification when an MCP server disconnects mid-session and automatic reconnection gives up, pointing at /mcp
  • Added forking a session started with claude --remote-control or /remote-control from the Claude app; the fork runs as a background session on your computer
  • Fixed Bash commands the permission checker cannot fully analyze skipping the prompt under permissions.blockReadsOutsideWorkingDirectories, and a subshell hiding a dangerous rm in bypass mode
  • Fixed skills synced from claude.ai staying available after your organization turns Skills off; they now move to the recoverable trash
  • Fixed allowManagedMcpServersOnly, deniedMcpServers and disableClaudeAiConnectors set via MDM or managed-settings.json being ignored when server-managed settings are also present
  • Fixed 401/403 errors on Bedrock, Vertex and Foundry, and Claude apps gateway 403s, telling you to run /login; the message now names the credential to refresh or points to your gateway administrator
  • Fixed /login, /upgrade, and /extra-usage discarding earlier thinking from the conversation, which forced a full prompt-cache rewrite on the next request …

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