Claude Code 2.1.15 release notes

Version

2.1.15

Released

21 January 2026

Status

Stable release

What's new in Claude Code 2.1.15

The official notes for Claude Code 2.1.15 list 4 changes: 1 new feature, 2 fixes and 1 performance improvement.

• 1 new feature
• 2 fixes
• 1 performance improvement

Highlights

• new feature Added deprecation notification for npm installations - run claude install or see https://docs.anthropic.com/en/docs/claude-code/getting-started for more options
• performance improvement Improved UI rendering performance with React Compiler
• fix Fixed the "Context left until auto-compact" warning not disappearing after running /compact
• fix Fixed MCP stdio server timeout not killing child process, which could cause UI freezes

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 2.1.15)

All Claude Code release notes · All releases

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