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Claude Code 2.1.317 release notes

Version
2.1.317
Released
Status
Stable release

What's new in Claude Code 2.1.317

The official notes for Claude Code 2.1.317 list 87 changes: 9 new features, 46 fixes, 2 security changes and 30 other changes.

  • 9 new features
  • 46 fixes
  • 2 security changes
  • 30 other changes

Highlights

  • security change Fixed stdio MCP servers receiving an empty AWS_BEARER_TOKEN_BEDROCK when their env config sets it to empty; the variable is now…
  • security change Improved the error shown on Microsoft Foundry when Azure credentials can't be loaded: it now says to check or refresh…
  • new feature Added a warning to /schedule when a new cloud scheduled task gets connectors you did not ask for, with how…
  • new feature Added a check that asks before a web or shell tool call sends your account email address to the network
  • new feature Added onFailure: "block" for Agent SDK hook callbacks, so a callback that fails blocks the action instead of letting it…

Our short summary: changes are counted and classified automatically from the official notes, and highlights are shortened. The complete, authoritative list is in the official release notes on GitHub.

Full release notes on GitHub (Claude Code 2.1.317)

How to check your version and update Claude Code

  1. Check the installed version:
    claude --version
  2. Native installs update themselves in the background. To update right now:
    claude update
  3. Install exactly 2.1.317 (macOS, Linux, WSL):
    curl -fsSL https://claude.ai/install.sh | bash -s 2.1.317
  4. Homebrew does not auto-update. The claude-code cask follows the stable channel, claude-code@latest the latest one:
    brew upgrade claude-code
  5. WinGet:
    winget upgrade Anthropic.ClaudeCode
  6. npm (use install @latest, not npm update -g):
    npm install -g @anthropic-ai/claude-code@latest

Claude Code has two release channels: latest (the default) gets every version as it ships; stable runs about a week behind and skips releases with major regressions. Change it under /config → Auto-update channel or with the autoUpdatesChannel setting.

Installing for the first time, or on Windows? How to install and update Claude Code.

Commands from the official docs: Claude Code: Advanced setup.

Latest Claude Code version

2.1.318

Released · Official notes on GitHub

All Claude Code release notes · All releases

Also tracked: Claude news · Claude resets · Claude Code release notes · Blog