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Claude Code 2.1.316 release notes

Version
2.1.316
Released
Status
Stable release

What's new in Claude Code 2.1.316

The official notes for Claude Code 2.1.316 list 55 changes: 6 new features, 21 fixes, 3 security changes and 25 other changes.

  • 6 new features
  • 21 fixes
  • 3 security changes
  • 25 other changes

Highlights

  • security change Fixed shell commands being left running on macOS and Linux when Claude Code exits by itself, for example when credentials…
  • security change Fixed plugin MCP headersHelper scripts receiving a corrupted CLAUDE_PLUGIN_ROOT and server URL when a credential-named environment variable was set to…
  • security change Fixed first-run setup dropping words from the security notes and the terminal-setup explanation in narrow terminals
  • new feature Added CLAUDE_CODE_DISABLE_ULTRATHINK, which turns the ultrathink keyword off
  • new feature Added pooled group budgets to the Claude apps gateway: one monthly budget that a group's members share, on top of…

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 2.1.316)

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 2.1.316 (macOS, Linux, WSL):
    curl -fsSL https://claude.ai/install.sh | bash -s 2.1.316
  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