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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.0.31

Web Search API Update

What: Support for the new web-search-2025-03-05 beta API.

Details:

  • Automatically enabled for Vertex AI platform with Claude 4.x models
  • Provides access to updated web search capabilities
  • Part of Anthropic's beta features system
  • Evidence: ErB = "web-search-2025-03-05" at line 203723, AT8() function at line 203732

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.0.31 →