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v2.1.237 Claude Code Release Notes

Aug 20, 2026
Claude's Analysisby Sonnet 5
Full Analysis

New "Concise" output style skips preamble and narration while staying thorough — toggle it in /config. Also fixes prompt caching for LLM gateway/custom base URL setups.

Changes
2
Total Changes (vs Average)
0.2×
Version Type
Patch
Release Focus
Feature
Days Since Prior Release
0
Release # This Month
#16 of 19
Bug Fix Ratio
50%
Post-Release Edits
—
Change Category
Key Themes
1New Concise output style|1Gateway prompt caching fix
May Help If You've Noticed
Wanted terser responses without long explanations or throat-clearing before results
Noticed caching wasn't kicking in when routing through a custom API gateway or base URL

Changes in Claude Code v2.1.237

Added1 change

  • •Added a built-in "Concise" output style: Claude leads with results and skips preamble and narration, while doing the work just as thoroughly. Select it under Output style in /config.

Fixed1 change

  • •Fixed prompt caching for sessions using an LLM gateway or custom base URL

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