What's Changed
* allow running tests on a specific version by samuelcolvin in https://github.com/pydantic/pydantic-core/pull/551
* Fix serialization of models with computed fields by dmontagu in https://github.com/pydantic/pydantic-core/pull/550
* Support RichComparison, hash and deepcopy for Url and MultiHostUrl by adriangb in https://github.com/pydantic/pydantic-core/pull/558
* Uprev to 0.26.0 by adriangb in https://github.com/pydantic/pydantic-core/pull/559
**Full Changelog**: https://github.com/pydantic/pydantic-core/compare/v0.25.0...v0.26.0