Claude Code 2.1.19 release notes

Version

2.1.19

Released

23 January 2026

Status

Stable release

What's new in Claude Code 2.1.19

The official notes for Claude Code 2.1.19 list 14 changes: 2 new features, 8 fixes and 4 other changes.

• 2 new features
• 8 fixes
• 4 other changes

Highlights

• new feature Added env var CLAUDE_CODE_ENABLE_TASKS, set to false to keep the old system temporarily
• new feature Added shorthand $0, $1, etc. for accessing individual arguments in custom commands
• fix Fixed crashes on processors without AVX instruction support
• fix Fixed dangling Claude Code processes when terminal is closed by catching EIO errors from process.exit() and using SIGKILL as fallback
• fix Fixed /rename and /tag not updating the correct session when resuming from a different directory (e.g., git worktrees)

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 2.1.19)

All Claude Code release notes · All releases

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