Claude Code Release Notes

Claude Code v2.1.17 Release Notes

Claude Code v2.1.17 fixes critical crashes on processors without AVX instruction support, improving compatibility across hardware configurations.

January 22, 2026 • 2 min read • By Claude World

The Claude Code development team has released version 2.1.17, a focused stability update that addresses a critical compatibility issue affecting users with older or specialized processor architectures.

What’s New

Critical Stability Fix

Fixed crashes on processors without AVX instruction support - This release resolves a significant issue that was causing Claude Code to crash on systems with processors that don’t support Advanced Vector Extensions (AVX) instructions. This fix dramatically improves compatibility across a wider range of hardware configurations, including:

  • Older Intel processors (pre-Sandy Bridge)
  • Some AMD processors without AVX support
  • Virtual machines with limited instruction set emulation
  • Specialized embedded systems and single-board computers

This fix ensures that Claude Code can now run reliably on legacy systems and environments where AVX instructions are not available, making the tool accessible to a broader user base.

How to Update

To update to Claude Code v2.1.17:

  1. Automatic updates: If you have automatic updates enabled, the new version will be installed automatically
  2. Manual download: Visit the release page and download the latest version for your platform
  3. Package managers: Update through your preferred package manager (npm, pip, etc.)
  4. Verify installation: Run claude-code --version to confirm you’re running v2.1.17