v3.0

Changes

• Added support for new types:
  • typing.NewType
  • typing.Literal
  • typing_extensions.Literal
  • typing.Annotated
  • typing_extensions.Annotated
  • zoneinfo.ZoneInfo
  • typing_extensions.OrderedDict on Python<3.7.2.
• Fixed using field options when using dataclass slots=True on Python 3.10 (#68).
• Fixed using postponed evaluation with parent class (#70).
• Fixed not removing field metadata options for the overridden field without them.
• Fixed serialization of SerializableType generic classes.
• Added new pass_through object that can be used in serialization_strategy and serialize / deserialize options.
• Reduced code building time.
• Use encoder and decoder written in C for YAML by default if available.

Backward incompatible changes

• Moved msgpack, pyyaml dependencies to extras_require (#7).
• Moved DataClassJSONMixin, DataClassMessagePackMixin, DataClassYAMLMixin to mashumaro.mixins.* subpackages.
• Removed use_bytes, use_enum, use_datetime parameters from DataClassDictMixin methods.
• Removed encoder and decoder kwargs from to_*, from_* methods of the serialization mixins in order to pass keyword arguments to underlying to_dict, from_dict methods.

You can find migration guide here: https://github.com/Fatal1ty/mashumaro/blob/master/docs/2to3.md.