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Written by AI from the official notes. Check them for exact details.The Claude Sonnet 3.7 model is deprecated, and the 3.5 models have been retired.
- Claude Sonnet 3.7 model is now deprecated.
- Claude Sonnet 3.5 models have been retired and return errors.
- Expanded context editing with automatic thinking block management.
Why it matters: Users of Claude models should transition to newer versions to avoid errors and utilize improved features.
Full release notes3 changes
- We announced the deprecation of the Claude Sonnet 3.7 model. Read more in Model deprecations.
- We've retired the Claude Sonnet 3.5 models. All requests to these models will now return an error.
- We've expanded context editing with thinking block clearing (
clear_thinking_20251015), enabling automatic management of thinking blocks. Learn more in Context editing.