v4.4

frigid v4.4 (2026-10-16)

Enhancements

• Support for Python 3.15. The class-level immutability behavior now exempts the
  names CPython 3.15 typing machinery assigns to protocol classes.

Notices

• Raise the Classcore requirement to ~= 1.14. The class-level mutables
  exemptions for ABC and typing machinery are now imported from
  classcore.standard.nomina instead of being maintained locally.

Removals

• Drop support for Python 3.10, Python 3.11, and PyPy. The minimum supported
  Python version is now 3.12.

Repairs

• Permit CPython 3.15 typing machinery names on immutable classes. CPython 3.15
  typing sets __typing_is_deprecated_inherited_runtime_protocol__ during
  class decoration and again in the runtime_checkable decorator, and the
  class-level immutability behavior refused it. The typing and ABC machinery
  exemptions are now taken from Classcore rather than maintained locally, so
  _is_runtime_protocol and __non_callable_proto_members__ are permitted
  as well.