Claude Code 2.1.23 release notes

Version

2.1.23

Released

29 January 2026

Status

Stable release

What's new in Claude Code 2.1.23

The official notes for Claude Code 2.1.23 list 11 changes: 1 new feature, 6 fixes, 1 performance improvement and 3 other changes.

• 1 new feature
• 6 fixes
• 1 performance improvement
• 3 other changes

Highlights

• new feature Added customizable spinner verbs setting (spinnerVerbs)
• performance improvement Improved terminal rendering performance with optimized screen data layout
• fix Fixed mTLS and proxy connectivity for users behind corporate proxies or using client certificates
• fix Fixed per-user temp directory isolation to prevent permission conflicts on shared systems
• fix Fixed a race condition that could cause 400 errors when prompt caching scope was enabled

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 2.1.23)

All Claude Code release notes · All releases

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