What's Changed

• Switch settings from contextvar to thread local storage (for Colab) by @okhat in https://github.com/stanfordnlp/dspy/pull/1860
• Signature.replace compatibility with pydantic 2.10 by @mikeedjones in https://github.com/stanfordnlp/dspy/pull/1855
• Allow react.Tool to wrap methods by @tkellogg in https://github.com/stanfordnlp/dspy/pull/1856
• Adapters: Support JSON serialization of all types via pydantic (e.g. datetimes, enums, etc.) by @dbczumar in https://github.com/stanfordnlp/dspy/pull/1853

Full Changelog: https://github.com/stanfordnlp/dspy/compare/2.5.39...2.5.40