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Last updated: Mar 14, 2026

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All Anthropic Release Notes (480)

  • March 2026
    • No date parsed from source.
    • First seen by Releasebot:
      Mar 14, 2026
    Anthropic logo

    Claude Code by Anthropic

    2.1.76

    Anthropic unveils a sweeping update with MCP elicitation support and new Elicitation hooks, a startup name flag, sparse worktree paths, a PostCompact hook, an effort command, and a configurable session quality survey. Numerous fixes improve stability, UX, and performance across tools, SLAs, and integrations.

    Release notes

    • 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 <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

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  • March 2026
    • No date parsed from source.
    • First seen by Releasebot:
      Mar 13, 2026
    Anthropic logo

    Claude Code by Anthropic

    2.1.75

    Anthropic unveils Opus 4.6 boosting to 1M context on all plans, adds /color, session name on the prompt bar, and memory freshness timestamps. It shows hook sources, fixes voice mode, model switching, attachments, bash quirks, plugin visibility, token counting, and session resume. Includes macOS speedup and a Windows settings break.

    Release Notes

    • Added 1M context window for Opus 4.6 by default for Max, Team, and Enterprise plans (previously required extra usage)
    • Added /color command for all users to set a prompt-bar color for your session
    • Added session name display on the prompt bar when using /rename
    • Added last-modified timestamps to memory files, helping Claude reason about which memories are fresh vs. stale
    • Added hook source display (settings/plugin/skill) in permission prompts when a hook requires confirmation
    • Fixed voice mode not activating correctly on fresh installs without toggling /voice twice
    • Fixed the Claude Code header not updating the displayed model name after switching models with /model or Option+P
    • Fixed session crash when an attachment message computation returns undefined values
    • Fixed Bash tool mangling ! in piped commands (e.g., jq 'select(.x != .y)' now works correctly)
    • Fixed managed-disabled plugins showing up in the /plugin Installed tab — plugins force-disabled by your organization are now hidden
    • Fixed token estimation over-counting for thinking and tool_use blocks, preventing premature context compaction
    • Fixed corrupted marketplace config path handling
    • Fixed /resume losing session names after resuming a forked or continued session
    • Fixed Esc not closing the /status dialog after visiting the Config tab
    • Fixed input handling when accepting or rejecting a plan
    • Fixed footer hint in agent teams showing "↓ to expand" instead of the correct "shift + ↓ to expand"
    • Improved startup performance on macOS non-MDM machines by skipping unnecessary subprocess spawns
    • Suppressed async hook completion messages by default (visible with --verbose or transcript mode)
    • Breaking change: Removed deprecated Windows managed settings fallback at C:\ProgramData\ClaudeCode\managed-settings.json — use C:\Program Files\ClaudeCode\managed-settings.json
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  • Mar 13, 2026
    • Date parsed from source:
      Mar 13, 2026
    • First seen by Releasebot:
      Mar 14, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    March 13, 2026

    Anthropic announces 1M token context window GA for Claude Opus 4.6 and Sonnet 4.6 at standard pricing, with no beta header, removed limits, and media cap up to 600.

    Release notes

    • The 1M token context window is now generally available for Claude Opus 4.6 and Sonnet 4.6 at standard pricing. Requests over 200k tokens work automatically for these models with no beta header required. The 1M token context window remains in beta for Claude Sonnet 4.5 and Sonnet 4.
    • We've removed the dedicated 1M rate limits for all supported models. Your standard account limits now apply across every context length.
    • We've raised the media limit from 100 to 600 images or PDF pages per request when using the 1M token context window.
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  • March 2026
    • No date parsed from source.
    • First seen by Releasebot:
      Mar 12, 2026
    Anthropic logo

    Claude Code by Anthropic

    2.1.74

    Anthropic unveils a release with new actionable context suggestions, a configurable autoMemoryDirectory, and a broad set of stability and compatibility fixes across memory, OAuth, plugin handling, model parsing, RTL rendering, and editor integrations. It emphasizes reliability and developer workflow improvements.

    Release notes

    • 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
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  • March 2026
    • No date parsed from source.
    • First seen by Releasebot:
      Mar 12, 2026
    Anthropic logo

    Claude Code by Anthropic

    2.1.73

    Anthropic unveils a release with a new modelOverrides setting to map model picker entries to custom provider model IDs plus actionable SSL guidance. It fixes hangs, deadlocks, and glitches across Claude Code, Bash tools, sessions, and remote control. Performance boosts and stability tweaks follow.

    • 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
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  • Mar 12, 2026
    • Date parsed from source:
      Mar 12, 2026
    • First seen by Releasebot:
      Mar 13, 2026
    Anthropic logo

    Anthropic

    Anthropic invests $100 million into the Claude Partner Network

    Anthropic unveils the Claude Partner Network a new program delivering training, dedicated support, and co-marketing for enterprises adopting Claude. A $100 million 2026 commitment funds partner training, certification Claude Certified Architect Foundations and future credentials, plus global go-to-market support.

    Claude Partner Network overview

    We’re launching the Claude Partner Network, a program for partner organizations helping enterprises adopt Claude. We’re committing an initial $100 million to support our partners with training courses, dedicated technical support, and joint market development. Partners who join from today will get immediate access to a new technical certification and be eligible for investment.

    Anthropic is focused on ensuring that our AI model, Claude, serves the needs of businesses. To do this, we’ve partnered with a number of other companies. Notably, Claude is the only frontier AI model available on all three leading cloud providers: AWS, Google Cloud, and Microsoft.

    We also work with large management consultancies, professional services firms, specialist AI firms, and similar agencies. These organizations help our enterprise customers identify where Claude can provide the most value to their work, and then help them get started with our AI tools. Our partners act as trusted guides in what can feel like uncharted territory: navigating the deployment requirements, compliance, and change management necessary inside large organizations.

    Now, we’re doubling down our commitment to our partners, aiming to make it even easier for these organizations to support enterprises in adopting Claude.

    "Anthropic is the most committed AI company in the world to the partner ecosystem—and we're putting $100 million behind that this year to prove it. The certification, the co-investment, the dedicated team—this infrastructure is built so that any firm, at any scale, can build a Claude practice. Our partners are instrumental in getting enterprises from proof of concept to production with Claude, and we're making sure they have everything they need to do it."—Steve Corfield, Head of Global Business Development and Partnerships, Anthropic.

    Introducing the Claude Partner Network

    The Claude Partner Network provides training, technical support, and joint market development for our partners helping enterprises adopt Claude. We’re committing an initial $100 million to this network for 2026, and expect to invest even more over time.

    A significant proportion of our $100 million investment will go directly to our partners as direct support for training and sales enablement, and for market development (including work to make customer deployments successful) and co-marketing for joint campaigns and events. We’re also scaling our partner-facing team fivefold, so that we can provide dedicated Applied AI engineers to partners working on live customer deals, technical architects to scope more complex implementations, and localized go-to-market support in international markets.

    Those who join the network will have access to our Partner Portal, where we’ll share our Anthropic Academy training materials, the sales playbooks used by our own go-to-market team, and other co-marketing documentation. Qualified partners will also be added to our Services Partner Directory, where enterprise buyers can find firms with Claude implementation experience.

    Alongside the network, we’re introducing the first Claude technical certification: Claude Certified Architect, Foundations, available today for partners. This is a technical exam for solution architects building production applications with Claude. Later this year, we’ll introduce additional certifications for sellers, architects, and developers. Partners who join the network now will get priority access to new certifications as they roll out.

    Finally, we’re launching a Code Modernization starter kit, which gives our partners a straightforward starting point for migrating legacy codebases and remediating enterprises’ technical debt. This is one of the highest-demand enterprise workloads, and one where Claude’s agentic coding capabilities most directly translate into client outcomes.

    Any organization that is bringing Claude to market is eligible to join the Claude Partner Network. Membership is free of charge, and applications open today. You can find out more here.

    Below, our partners share more about their work with Claude:

    We're training 30,000 Accenture professionals on Claude because that's what it takes to meet the demand we're seeing. The Claude Partner Network gives us the structure to do that faster — the certification, the co-selling support, the shared investment. It matches how we actually build practices and deploy teams.

    Enterprise AI needs to be powerful. The Claude Partner Network helps formalize and scale the work underway; the training, industry-focused solutions, and practical guidance for deploying AI.

    Ranjit Bawa
    Global Technology and Ecosystems & Alliances Leader, Deloitte

    We've opened Claude access across our global workforce—supporting an organization of roughly 350,000 associates—and we're embedding it into how we help clients modernize and transform. The Claude Partner Network gives us the co-investment and technical support to move faster, so our clients can advance pilot initiatives toward production without the usual delays.

    Sandra Notardonato
    Head of Global Partnership Development and Influencer Relations, Cognizant

    We are enabling clients to scale AI with confidence—built on robust governance, security, and trust by design. Our dedicated Anthropic Center of Excellence accelerates readiness and capability-building, aligned with Infosys’ AI-first value approach. With teams applying Claude Code in real-world delivery, we are helping clients unlock AI value across industries.

    Anand Swaminathan
    Executive Vice President and Global Head – Communications, Media and Technology, Infosys

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  • Mar 12, 2026
    • Date parsed from source:
      Mar 12, 2026
    • First seen by Releasebot:
      Mar 13, 2026
    Anthropic logo

    Claude by Anthropic

    March 12, 2026

    Anthropic announces Claude can now create custom charts and inline visualizations in responses.

    Claude creates interactive charts, diagrams and visualizations

    Claude can now create custom charts, diagrams and other visualizations in-line in its responses. For more information, see Custom visuals in chat.

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  • Mar 12, 2026
    • Date parsed from source:
      Mar 12, 2026
    • First seen by Releasebot:
      Mar 12, 2026
    Anthropic logo

    Claude Apps by Anthropic

    March 12, 2026

    Anthropic announces Claude now supports custom in-line charts and visuals in chats with interactive diagrams.

    Claude creates interactive charts, diagrams and visualizations

    Claude can now create custom charts, diagrams and other visualizations in-line in its responses. For more information, see

    Custom visuals in chat

    .

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  • Mar 11, 2026
    • Date parsed from source:
      Mar 11, 2026
    • First seen by Releasebot:
      Mar 12, 2026
    Anthropic logo

    Claude by Anthropic

    March 11, 2026

    Anthropic updates Claude for Excel and PowerPoint add-ins to share full context, add skills, and connect via an LLM gateway with major clouds.

    Work across Excel and PowerPoint

    We’ve improved our Claude for Excel and Claude for PowerPoint add-ins. They can now share the full context of your conversation, so every action Claude takes in one application is informed by everything that’s happened in the other. We also added support for skills in the add-ins, and the ability for Amazon Bedrock, Google Cloud’s Vertex AI, or Microsoft Foundry users to connect to them via an LLM gateway. For more information, refer to the following articles:

    • Work across Excel and PowerPoint

    • Use Claude for Excel and PowerPoint with an LLM gateway

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  • Mar 11, 2026
    • Date parsed from source:
      Mar 11, 2026
    • First seen by Releasebot:
      Mar 12, 2026
    Anthropic logo

    Claude Apps by Anthropic

    March 11, 2026

    Anthropic enhances Claude add-ins for Excel and PowerPoint with cross-app context, new skills support, and LLM gateway connectivity.

    Work across Excel and PowerPoint

    We’ve improved our Claude for Excel and Claude for PowerPoint add-ins. They can now share the full context of your conversation, so every action Claude takes in one application is informed by everything that’s happened in the other. We also added support for skills in the add-ins, and the ability for Amazon Bedrock, Google Cloud’s Vertex AI, or Microsoft Foundry users to connect to them via an LLM gateway. For more information, refer to the following articles:

    • Work across Excel and PowerPoint
    • Use Claude for Excel and PowerPoint with an LLM gateway
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