Absence v1.1.1 (2025-07-03)

Enhancements

• Internal improvement to use classcore.finalize_module rather than the
  deprecated classcore.reclassify_modules.

Absence v1.1 (2025-06-06)

Enhancements

• Apply Dynadoc to package to improve documentation.

Absence v1.1rc0 (2025-06-06)

Enhancements

• Apply Dynadoc to package to improve documentation.

Absence v1.0.1 (2025-01-22)

Bugfixes

• Convert Absential to proper type alias and to use separately-declared type
  variable. (Addresses Pyright complaints.)

Absence v1.0 (2024-12-21)

Features

• Add AbsenceFactory class for creating package-specific absence sentinels.
  Each instance evaluates to False in boolean contexts, has unique identity,
  and supports customizable string representations.
• Add Absential type alias for annotating values that may be absent,
  supporting clear type hints for optional parameters and return values where
  None is a valid value.
• Add absent sentinel, a falsey singleton that represents absence in contexts
  where None might be a valid value. The sentinel maintains global uniqueness,
  supports proper equality comparison, and can be installed as a builtin.
• Add is_absent and is_absence predicates for type-safe checking of
  absence sentinels. These can distinguish between the global sentinel and
  factory-produced sentinels, and support installation as builtins.
• Add optional builtin installation support, allowing the absent sentinel
  and its predicates to be used without imports, similar to None. Supports
  custom names and selective installation of components.

Supported Platforms

• Add support for CPython 3.10 to 3.13.
• Add support for PyPy 3.10.

Absence v1.0rc0 (2024-12-21)

Features

• Add AbsenceFactory class for creating package-specific absence sentinels.
  Each instance evaluates to False in boolean contexts, has unique identity,
  and supports customizable string representations.
• Add Absential type alias for annotating values that may be absent,
  supporting clear type hints for optional parameters and return values where
  None is a valid value.
• Add absent sentinel, a falsey singleton that represents absence in contexts
  where None might be a valid value. The sentinel maintains global uniqueness,
  supports proper equality comparison, and can be installed as a builtin.
• Add is_absent and is_absence predicates for type-safe checking of
  absence sentinels. These can distinguish between the global sentinel and
  factory-produced sentinels, and support installation as builtins.
• Add optional builtin installation support, allowing the absent sentinel
  and its predicates to be used without imports, similar to None. Supports
  custom names and selective installation of components.

Supported Platforms

• Add support for CPython 3.10 to 3.13.
• Add support for PyPy 3.10.