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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 v0.2.62

Model Configuration Updates

  • New Sonnet model: Added support for claude-3-7-sonnet-20250219
  • Improved model selection: Better handling of environment-specific model configurations
  • Automatically selects appropriate model variant based on your provider (Bedrock, Vertex, or First-party)
  • Respects ANTHROPIC_SMALL_FAST_MODEL environment variable for custom model selection

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 v0.2.62 →