What's Changed

Packaging

• Bump pydantic-core to v2.23.1 and other minor version bumps by @sydney-runkle in #10269

Changes

• Raise helpful warning when self isn't returned from model validator by @sydney-runkle in #10255

Performance

• Update namespace stack with already copied namespace by @sydney-runkle in #10267

Fixes

• Fix new warnings assertions to use pytest.warns() by @mgorny in #10241
• Fix a crash when cleaning the namespace in ModelMetaclass by @Viicos in #10242
• Fix parent namespace issue with model rebuilds by @sydney-runkle in #10257
• Remove defaults filter for namespace by @sydney-runkle in #10261
• Use identity instead of equality after validating model in __init__ by @Viicos in #10264
• Support BigInt serialization for int subclasses by @kxx317 in pydantic/pydantic-core#1417

New Contributors

• @AdolfoVillalobos made their first contribution in #10240
• @bllchmbrs made their first contribution in #10270