v25.3.0

Potentially breaking: Abstract sets are now structured into frozensets. This allows hashability, better immutability and is more consistent with the collections.abc.Set type. See Migrations for steps to restore legacy behavior. (#686)
Python 3.14 is now supported and part of the test matrix. (#653)
Fix unstructuring NewTypes with the {class}BaseConverter. (#684)
Make some Hypothesis tests more robust. (#684)
{func}cattrs.strategies.include_subclasses now works with generic parent classes and the tagged union strategy. (#683)

New Contributors

@danarmak made their first contribution in https://github.com/python-attrs/cattrs/pull/683

Full Changelog: https://github.com/python-attrs/cattrs/compare/v25.2.0...v25.3.0

Potentially breaking: Abstract sets are now structured into frozensets. This allows hashability, better immutability and is more consistent with the collections.abc.Set type. See Migrations for steps to restore legacy behavior. (#686)
Python 3.14 is now supported and part of the test matrix. (#653)
Fix unstructuring NewTypes with the {class}BaseConverter. (#684)
Make some Hypothesis tests more robust. (#684)
{func}cattrs.strategies.include_subclasses now works with generic parent classes and the tagged union strategy. (#683)

@danarmak made their first contribution in https://github.com/python-attrs/cattrs/pull/683

Full Changelog: https://github.com/python-attrs/cattrs/compare/v25.2.0...v25.3.0