v3.15

Changes

• Improved Union and basic types deserialization (#256), highlighted changes:
  • Expected int | float or float | int value can now be passed through without coercion and losing precision
  • Expected str value will be guaranteed to be a string version of the input value (#42)
  • Expected bool value will be guaranteed to be a boolean using standard truth testing procedure for the input value
  • Expected NoneType will be guaranteed to be None regardless of the input value
• Introduced JSON Schema plugin system (#265), see updated documentation
  • Added built-in DocstringDescriptionPlugin to use a docstring as a description (#222)
• Added support for recursive Union types (#206)
• Configured MANIFEST.in to include tests folder in the sdist (#262)
• Dropped support for Python 3.8 (#258)

v3.14

Changes

• Added support for re.Pattern and typing.Pattern (#105)
• Fixed DeprecationWarning introduced in Python 3.13 (#249)
• Fixed potential duplications in the Union unpacker (#250)
• Small changes under the hood (#244, #247)

v3.13.1

Changes

• Fixed type annotation for the result of to_json method in DataClassORJSONMixin (#223)
• Fixed compatibility with Python 3.12.4 (#226)
• Fixed compatibility with latest TypeVar default changes in Python 3.13.0 and typing-extensions>=4.12 (#227)

v3.13

Changes

• Added support for Python 3.13 (#208, #209)
• Added support for PEP 695 (#211)
• Added initial support for PEP 696 with typing-extensions 4.11.0 reference implementation (#216)
• Added support for MappingProxyType (#218)
• Added forbid_extra_keys config option to reject extra keys on deserialization (#197, #198)
• Added an alternative way to assign a field alias with Alias(...) annotation (#214), see updated documentation
• Improved union encoding performance (#194)
• Fixed a case when omit_default didn't work for Enum with basic types mixed in (#204)
• Fixed RecursionError when annotated SerializationStrategy was used as a field serialization strategy (#219)

v3.12

Changes

• Added support for associating multiple tags with a single variant by returning a list of tags from variant_tagger_fn (#184)
• Added support for locally defined types (#180, #182, #189)
• Added support for ForwardRef in JSON Schema generation (#187)
• Fixed serialization of IntFlag when omit_default is enabled (#188)
• Improved type annotations for serialization_strategy config option

v3.11

Changes

• Added "codecs" feature to separate data models from serialization and work with top-level lists, dataclasses without mixins etc. (#108, #69), see updated documentation
• Added new allow_deserialization_not_by_alias config option to allow deserialization by both alias and field name, see documentation (#175)
• Fixed UnserializableDataError for generic serializable types and generic serialization strategies with postponed evaluation of annotations (#177)
• Fixed regression when ValueError was not thrown if invalid value type was passed to from_* method
• Added serialize_by_alias dialect option
• Added namedtuple_as_dict dialect option

v3.10

Changes

• Added new sort_keys config option to sort keys on serialization, see documentation (#157)
• Added new omit_default config and dialect options to exclude values equal to defaults on serialization, see documentation (#161)
• Added variant_tagger_fn discriminator parameter to allow discrimination based on a key that is not part of the model, see documentation (#135)
• Added new no_copy_collections dialect option to avoid collection data types copying, see documentation (#163)
• Added support for LiteralString (#166)
• Added initial support for ForwardRef types (#144)
• Added ability to use basic types as serialization methods so that they will be reflected in the JSON schema (#148)
• Added ability to use slots in SerializableType and GenericSerializableType subclasses (#156)
• Added ability to use frozen dataclasses as dictionary keys (#160)
• Added support for Python 3.12 (#153)
• Dropped support for Python 3.7 (#147)
• Moved from flake8 to ruff (#150)

v3.9.1

Changes

• Fixed handling of collections of annotated with unhashable metadata types on python < 3.9 (#138)
• Fixed JSON Schema for inner dataclasses and optional fields with custom serialization methods (#139)
• Fixed JSON Schema for third-party types with default value (#141)

v3.9

Changes

• Added support for inner dataclasses without mashumaro mixins (#109)
• Added support for default_factory by JSON Schema generator (#114)
• Added ability to override additionalProperties in JSON Schema (#123)
• Added ability to add "description" keyword in JSON Schema by using "description" key in dataclass field metadata (#125)
• Fixed default reference prefix in JSON Schema 2022-12 dialect (#126)
• Fixed handling of Annotated type with unhashable metadata (#133)

v3.8.1

Changes

• Fixed issues introduced in 3.8 when dataclass instantiation produced TypeError if one of the fields was overridden (#118) or post-deserialize hook was used (#120)