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v2.10.1 (2024-11-21)

GitHub release

What's Changed

Packaging

  • Bump pydantic-core version to v2.27.1 by @sydney-runkle in #10938

Fixes

  • Use the correct frame when instantiating a parametrized TypeAdapter by @Viicos in #10893
  • Relax check for validated data in default_factory utils by @sydney-runkle in #10909
  • Fix type checking issue with model_fields and model_computed_fields by @sydney-runkle in #10911
  • Use the parent configuration during schema generation for stdlib dataclasses by @sydney-runkle in #10928
  • Use the globals of the function when evaluating the return type of serializers and computed_fields by @Viicos in #10929
  • Fix URL constraint application by @sydney-runkle in #10922
  • Fix URL equality with different validation methods by @sydney-runkle in #10934
  • Fix JSON schema title when specified as '' by @sydney-runkle in #10936
  • Fix python mode serialization for complex inference by @sydney-runkle in pydantic-core#1549

New Contributors

v2.10.0 (2024-11-20)

The code released in v2.10.0 is practically identical to that of v2.10.0b2.

GitHub release

See the v2.10 release blog post for the highlights!

What's Changed

Packaging

  • Bump pydantic-core to v2.27.0 by @sydney-runkle in #10825
  • Replaced pdm with uv by @frfahim in #10727

New Features

  • Support fractions.Fraction by @sydney-runkle in #10318
  • Support Hashable for json validation by @sydney-runkle in #10324
  • Add a SocketPath type for linux systems by @theunkn0wn1 in #10378
  • Allow arbitrary refs in JSON schema examples by @sydney-runkle in #10417
  • Support defer_build for Pydantic dataclasses by @Viicos in #10313
  • Adding v1 / v2 incompatibility warning for nested v1 model by @sydney-runkle in #10431
  • Add support for unpacked TypedDict to type hint variadic keyword arguments with @validate_call by @Viicos in #10416
  • Support compiled patterns in protected_namespaces by @sydney-runkle in #10522
  • Add support for propertyNames in JSON schema by @FlorianSW in #10478
  • Adding __replace__ protocol for Python 3.13+ support by @sydney-runkle in #10596
  • Expose public sort method for JSON schema generation by @sydney-runkle in #10595
  • Add runtime validation of @validate_call callable argument by @kc0506 in #10627
  • Add experimental_allow_partial support by @samuelcolvin in #10748
  • Support default factories taking validated data as an argument by @Viicos in #10678
  • Allow subclassing ValidationError and PydanticCustomError by @Youssefares in pydantic/pydantic-core#1413
  • Add trailing-strings support to experimental_allow_partial by @sydney-runkle in #10825
  • Add rebuild() method for TypeAdapter and simplify defer_build patterns by @sydney-runkle in #10537
  • Improve TypeAdapter instance repr by @sydney-runkle in #10872

Changes

  • Don't allow customization of SchemaGenerator until interface is more stable by @sydney-runkle in #10303
  • Cleanly defer_build on TypeAdapters, removing experimental flag by @sydney-runkle in #10329
  • Fix mro of generic subclass by @kc0506 in #10100
  • Strip whitespaces on JSON Schema title generation by @sydney-runkle in #10404
  • Use b64decode and b64encode for Base64Bytes type by @sydney-runkle in #10486
  • Relax protected namespace config default by @sydney-runkle in #10441
  • Revalidate parametrized generics if instance's origin is subclass of OG class by @sydney-runkle in #10666
  • Warn if configuration is specified on the @dataclass decorator and with the __pydantic_config__ attribute by @sydney-runkle in #10406
  • Recommend against using Ellipsis (...) with Field by @Viicos in #10661
  • Migrate to subclassing instead of annotated approach for pydantic url types by @sydney-runkle in #10662
  • Change JSON schema generation of Literals and Enums by @Viicos in #10692
  • Simplify unions involving Any or Never when replacing type variables by @Viicos in #10338
  • Do not require padding when decoding base64 bytes by @bschoenmaeckers in pydantic/pydantic-core#1448
  • Support dates all the way to 1BC by @changhc in pydantic/speedate#77

Performance

  • Schema cleaning: skip unnecessary copies during schema walking by @Viicos in #10286
  • Refactor namespace logic for annotations evaluation by @Viicos in #10530
  • Improve email regexp on edge cases by @AlekseyLobanov in #10601
  • CoreMetadata refactor with an emphasis on documentation, schema build time performance, and reducing complexity by @sydney-runkle in #10675

Fixes

  • Remove guarding check on computed_field with field_serializer by @nix010 in #10390
  • Fix Predicate issue in v2.9.0 by @sydney-runkle in #10321
  • Fixing annotated-types bound by @sydney-runkle in #10327
  • Turn tzdata install requirement into optional timezone dependency by @jakob-keller in #10331
  • Use correct types namespace when building namedtuple core schemas by @Viicos in #10337
  • Fix evaluation of stringified annotations during namespace inspection by @Viicos in #10347
  • Fix IncEx type alias definition by @Viicos in #10339
  • Do not error when trying to evaluate annotations of private attributes by @Viicos in #10358
  • Fix nested type statement by @kc0506 in #10369
  • Improve typing of ModelMetaclass.mro by @Viicos in #10372
  • Fix class access of deprecated computed_fields by @Viicos in #10391
  • Make sure inspect.iscoroutinefunction works on coroutines decorated with @validate_call by @MovisLi in #10374
  • Fix NameError when using validate_call with PEP 695 on a class by @kc0506 in #10380
  • Fix ZoneInfo with various invalid types by @sydney-runkle in #10408
  • Fix PydanticUserError on empty model_config with annotations by @cdwilson in #10412
  • Fix variance issue in _IncEx type alias, only allow True by @Viicos in #10414
  • Fix serialization schema generation when using PlainValidator by @Viicos in #10427
  • Fix schema generation error when serialization schema holds references by @Viicos in #10444
  • Inline references if possible when generating schema for json_schema_input_type by @Viicos in #10439
  • Fix recursive arguments in Representation by @Viicos in #10480
  • Fix representation for builtin function types by @kschwab in #10479
  • Add python validators for decimal constraints (max_digits and decimal_places) by @sydney-runkle in #10506
  • Only fetch __pydantic_core_schema__ from the current class during schema generation by @Viicos in #10518
  • Fix stacklevel on deprecation warnings for BaseModel by @sydney-runkle in #10520
  • Fix warning stacklevel in BaseModel.__init__ by @Viicos in #10526
  • Improve error handling for in-evaluable refs for discriminator application by @sydney-runkle in #10440
  • Change the signature of ConfigWrapper.core_config to take the title directly by @Viicos in #10562
  • Do not use the previous config from the stack for dataclasses without config by @Viicos in #10576
  • Fix serialization for IP types with mode='python' by @sydney-runkle in #10594
  • Support constraint application for Base64Etc types by @sydney-runkle in #10584
  • Fix validate_call ignoring Field in Annotated by @kc0506 in #10610
  • Raise an error when Self is invalid by @kc0506 in #10609
  • Using core_schema.InvalidSchema instead of metadata injection + checks by @sydney-runkle in #10523
  • Tweak type alias logic by @kc0506 in #10643
  • Support usage of type with typing.Self and type aliases by @kc0506 in #10621
  • Use overloads for Field and PrivateAttr functions by @Viicos in #10651
  • Clean up the mypy plugin implementation by @Viicos in #10669
  • Properly check for typing_extensions variant of TypeAliasType by @Daraan in #10713
  • Allow any mapping in BaseModel.model_copy() by @Viicos in #10751
  • Fix isinstance behavior for urls by @sydney-runkle in #10766
  • Ensure cached_property can be set on Pydantic models by @Viicos in #10774
  • Fix equality checks for primitives in literals by @sydney-runkle in pydantic/pydantic-core#1459
  • Properly enforce host_required for URLs by @Viicos in pydantic/pydantic-core#1488
  • Fix when coerce_numbers_to_str enabled and string has invalid Unicode character by @andrey-berenda in pydantic/pydantic-core#1515
  • Fix serializing complex values in Enums by @changhc in pydantic/pydantic-core#1524
  • Refactor _typing_extra module by @Viicos in #10725
  • Support intuitive equality for urls by @sydney-runkle in #10798
  • Add bytearray to TypeAdapter.validate_json signature by @samuelcolvin in #10802
  • Ensure class access of method descriptors is performed when used as a default with Field by @Viicos in #10816
  • Fix circular import with validate_call by @sydney-runkle in #10807
  • Fix error when using type aliases referencing other type aliases by @Viicos in #10809
  • Fix IncEx type alias to be compatible with mypy by @Viicos in #10813
  • Make __signature__ a lazy property, do not deepcopy defaults by @Viicos in #10818
  • Make __signature__ lazy for dataclasses, too by @sydney-runkle in #10832
  • Subclass all single host url classes from AnyUrl to preserve behavior from v2.9 by @sydney-runkle in #10856

New Contributors

  • @jakob-keller made their first contribution in #10331
  • @MovisLi made their first contribution in #10374
  • @joaopalmeiro made their first contribution in #10405
  • @theunkn0wn1 made their first contribution in #10378
  • @cdwilson made their first contribution in #10412
  • @dlax made their first contribution in #10421
  • @kschwab made their first contribution in #10479
  • @santibreo made their first contribution in #10453
  • @FlorianSW made their first contribution in #10478
  • @tkasuz made their first contribution in #10555
  • @AlekseyLobanov made their first contribution in #10601
  • @NiclasvanEyk made their first contribution in #10667
  • @mschoettle made their first contribution in #10677
  • @Daraan made their first contribution in #10713
  • @k4nar made their first contribution in #10736
  • @UriyaHarpeness made their first contribution in #10740
  • @frfahim made their first contribution in #10727

v2.10.0b2 (2024-11-13)

Pre-release, see the GitHub release for details.

v2.10.0b1 (2024-11-06)

Pre-release, see the GitHub release for details.

v2.9.2 (2024-09-17)

GitHub release

What's Changed

Fixes

  • Do not error when trying to evaluate annotations of private attributes by @Viicos in #10358
  • Adding notes on designing sound Callable discriminators by @sydney-runkle in #10400
  • Fix serialization schema generation when using PlainValidator by @Viicos in #10427
  • Fix Union serialization warnings by @sydney-runkle in pydantic/pydantic-core#1449
  • Fix variance issue in _IncEx type alias, only allow True by @Viicos in #10414
  • Fix ZoneInfo validation with various invalid types by @sydney-runkle in #10408

v2.9.1 (2024-09-09)

GitHub release

What's Changed

Fixes

  • Fix Predicate issue in v2.9.0 by @sydney-runkle in #10321
  • Fixing annotated-types bound to >=0.6.0 by @sydney-runkle in #10327
  • Turn tzdata install requirement into optional timezone dependency by @jakob-keller in #10331
  • Fix IncExc type alias definition by @Viicos in #10339
  • Use correct types namespace when building namedtuple core schemas by @Viicos in #10337
  • Fix evaluation of stringified annotations during namespace inspection by @Viicos in #10347
  • Fix tagged union serialization with alias generators by @sydney-runkle in pydantic/pydantic-core#1442

v2.9.0 (2024-09-05)

GitHub release

The code released in v2.9.0 is practically identical to that of v2.9.0b2.

What's Changed

Packaging

  • Bump ruff to v0.5.0 and pyright to v1.1.369 by @sydney-runkle in #9801
  • Bump pydantic-extra-types to v2.9.0 by @sydney-runkle in #9832
  • Support compatibility with pdm v2.18.1 by @Viicos in #10138
  • Bump v1 version stub to v1.10.18 by @sydney-runkle in #10214
  • Bump pydantic-core to v2.23.2 by @sydney-runkle in #10311

New Features

  • Add support for ZoneInfo by @Youssefares in #9896
  • Add Config.val_json_bytes by @josh-newman in #9770
  • Add DSN for Snowflake by @aditkumar72 in #10128
  • Support complex number by @changhc in #9654
  • Add support for annotated_types.Not by @aditkumar72 in #10210
  • Allow WithJsonSchema to inject $refs w/ http or https links by @dAIsySHEng1 in #9863
  • Allow validators to customize validation JSON schema by @Viicos in #10094
  • Support parametrized PathLike types by @nix010 in #9764
  • Add tagged union serializer that attempts to use str or callable discriminators to select the correct serializer by @sydney-runkle in in pydantic/pydantic-core#1397

Changes

  • Breaking Change: Merge dict type json_schema_extra by @sydney-runkle in #9792
    • For more info (how to replicate old behavior) on this change, see here
  • Refactor annotation injection for known (often generic) types by @sydney-runkle in #9979
  • Move annotation compatibility errors to validation phase by @sydney-runkle in #9999
  • Improve runtime errors for string constraints like pattern for incompatible types by @sydney-runkle in #10158
  • Remove 'allOf' JSON schema workarounds by @dpeachey in #10029
  • Remove typed_dict_cls data from CoreMetadata by @sydney-runkle in #10180
  • Deprecate passing a dict to the Examples class by @Viicos in #10181
  • Remove initial_metadata from internal metadata construct by @sydney-runkle in #10194
  • Use re.Pattern.search instead of re.Pattern.match for consistency with rust behavior by @tinez in pydantic/pydantic-core#1368
  • Show value of wrongly typed data in pydantic-core serialization warning by @BoxyUwU in pydantic/pydantic-core#1377
  • Breaking Change: in pydantic-core, change metadata type hint in core schemas from Any -> Dict[str, Any] | None by @sydney-runkle in pydantic/pydantic-core#1411
  • Raise helpful warning when self isn't returned from model validator by @sydney-runkle in #10255

Performance

  • Initial start at improving import times for modules, using caching primarily by @sydney-runkle in #10009
  • Using cached internal import for BaseModel by @sydney-runkle in #10013
  • Simplify internal generics logic - remove generator overhead by @sydney-runkle in #10059
  • Remove default module globals from types namespace by @sydney-runkle in #10123
  • Performance boost: skip caching parent namespaces in most cases by @sydney-runkle in #10113
  • Update ns stack with already copied ns by @sydney-runkle in #10267
Minor Internal Improvements
  • ⚡️ Speed up multiple_of_validator() by 31% in pydantic/_internal/_validators.py by @misrasaurabh1 in #9839
  • ⚡️ Speed up ModelPrivateAttr.__set_name__() by 18% in pydantic/fields.py by @misrasaurabh1 in #9841
  • ⚡️ Speed up dataclass() by 7% in pydantic/dataclasses.py by @misrasaurabh1 in #9843
  • ⚡️ Speed up function _field_name_for_signature by 37% in pydantic/_internal/_signature.py by @misrasaurabh1 in #9951
  • ⚡️ Speed up method GenerateSchema._unpack_refs_defs by 26% in pydantic/_internal/_generate_schema.py by @misrasaurabh1 in #9949
  • ⚡️ Speed up function apply_each_item_validators by 100% in pydantic/_internal/_generate_schema.py by @misrasaurabh1 in #9950
  • ⚡️ Speed up method ConfigWrapper.core_config by 28% in pydantic/_internal/_config.py by @misrasaurabh1 in #9953

Fixes

  • Respect use_enum_values on Literal types by @kwint in #9787
  • Prevent type error for exotic BaseModel/RootModel inheritance by @dmontagu in #9913
  • Fix typing issue with field_validator-decorated methods by @dmontagu in #9914
  • Replace str type annotation with Any in validator factories in documentation on validators by @maximilianfellhuber in #9885
  • Fix ComputedFieldInfo.wrapped_property pointer when a property setter is assigned by @tlambert03 in #9892
  • Fix recursive typing of main.IncEnx by @tlambert03 in #9924
  • Allow usage of type[Annotated[...]] by @Viicos in #9932
  • mypy plugin: handle frozen fields on a per-field basis by @dmontagu in #9935
  • Fix typo in invalid-annotated-type error code by @sydney-runkle in #9948
  • Simplify schema generation for uuid, url, and ip types by @sydney-runkle in #9975
  • Move date schemas to _generate_schema.py by @sydney-runkle in #9976
  • Move decimal.Decimal validation to _generate_schema.py by @sydney-runkle in #9977
  • Simplify IP address schema in _std_types_schema.py by @sydney-runkle in #9959
  • Fix type annotations for some potentially generic GenerateSchema.match_type options by @sydney-runkle in #9961
  • Add class name to "has conflict" warnings by @msabramo in #9964
  • Fix dataclass ignoring default_factory passed in Annotated by @kc0506 in #9971
  • Fix Sequence ignoring discriminator by @kc0506 in #9980
  • Fix typing for IPvAnyAddress and IPvAnyInterface by @haoyun in #9990
  • Fix false positives on v1 models in mypy plugin for from_orm check requiring from_attributes=True config by @radekwlsk in #9938
  • Apply strict=True to __init__ in mypy plugin by @kc0506 in #9998
  • Refactor application of deque annotations by @sydney-runkle in #10018
  • Raise a better user error when failing to evaluate a forward reference by @Viicos in #10030
  • Fix evaluation of __pydantic_extra__ annotation in specific circumstances by @Viicos in #10070
  • Fix frozen enforcement for dataclasses by @sydney-runkle in #10066
  • Remove logic to handle unused __get_pydantic_core_schema__ signature by @Viicos in #10075
  • Use is_annotated consistently by @Viicos in #10095
  • Fix PydanticDeprecatedSince26 typo by @kc0506 in #10101
  • Improve pyright tests, refactor model decorators signatures by @Viicos in #10092
  • Fix ip serialization logic by @sydney-runkle in #10112
  • Warn when frozen defined twice for dataclasses by @mochi22 in #10082
  • Do not compute JSON Schema default when plain serializers are used with when_used set to 'json-unless-none' and the default value is None by @Viicos in #10121
  • Fix ImportString special cases by @sydney-runkle in #10137
  • Blacklist default globals to support exotic user code with __ prefixed annotations by @sydney-runkle in #10136
  • Handle nullable schemas with serialization schema available during JSON Schema generation by @Viicos in #10132
  • Reorganize BaseModel annotations by @kc0506 in #10110
  • Fix core schema simplification when serialization schemas are involved in specific scenarios by @Viicos in #10155
  • Add support for stringified annotations when using PrivateAttr with Annotated by @Viicos in #10157
  • Fix JSON Schema number type for literal and enum schemas by @Viicos in #10172
  • Fix JSON Schema generation of fields with plain validators in serialization mode by @Viicos in #10167
  • Fix invalid JSON Schemas being generated for functions in certain scenarios by @Viicos in #10188
  • Make sure generated JSON Schemas are valid in tests by @Viicos in #10182
  • Fix key error with custom serializer by @sydney-runkle in #10200
  • Add 'wss' for allowed schemes in NatsDsn by @swelborn in #10224
  • Fix Mapping and MutableMapping annotations to use mapping schema instead of dict schema by @sydney-runkle in #10020
  • Fix JSON Schema generation for constrained dates by @Viicos in #10185
  • Fix discriminated union bug regression when using enums by @kfreezen in pydantic/pydantic-core#1286
  • Fix field_serializer with computed field when using * by @nix010 in pydantic/pydantic-core#1349
  • Try each option in Union serializer before inference by @sydney-runkle in pydantic/pydantic-core#1398
  • Fix float serialization behavior in strict mode by @sydney-runkle in pydantic/pydantic-core#1400
  • Introduce exactness into Decimal validation logic to improve union validation behavior by @sydney-runkle in in pydantic/pydantic-core#1405
  • Fix new warnings assertions to use pytest.warns() by @mgorny in #10241
  • Fix a crash when cleaning the namespace in ModelMetaclass by @Viicos in #10242
  • Fix parent namespace issue with model rebuilds by @sydney-runkle in #10257
  • Remove defaults filter for namespace by @sydney-runkle in #10261
  • Use identity instead of equality after validating model in __init__ by @Viicos in #10264
  • Support BigInt serialization for int subclasses by @kxx317 in pydantic/pydantic-core#1417
  • Support signature for wrap validators without info by @sydney-runkle in #10277
  • Ensure __pydantic_complete__ is set when rebuilding dataclasses by @Viicos in #10291
  • Respect schema_generator config value in TypeAdapter by @sydney-runkle in #10300

New Contributors

pydantic

  • @kwint made their first contribution in #9787
  • @seekinginfiniteloop made their first contribution in #9822
  • @a-alexander made their first contribution in #9848
  • @maximilianfellhuber made their first contribution in #9885
  • @karmaBonfire made their first contribution in #9945
  • @s-rigaud made their first contribution in #9958
  • @msabramo made their first contribution in #9964
  • @DimaCybr made their first contribution in #9972
  • @kc0506 made their first contribution in #9971
  • @haoyun made their first contribution in #9990
  • @radekwlsk made their first contribution in #9938
  • @dpeachey made their first contribution in #10029
  • @BoxyUwU made their first contribution in #10085
  • @mochi22 made their first contribution in #10082
  • @aditkumar72 made their first contribution in #10128
  • @changhc made their first contribution in #9654
  • @insumanth made their first contribution in #10229
  • @AdolfoVillalobos made their first contribution in #10240
  • @bllchmbrs made their first contribution in #10270

pydantic-core

v2.9.0b2 (2024-08-30)

Pre-release, see the GitHub release for details.

v2.9.0b1 (2024-08-26)

Pre-release, see the GitHub release for details.

v2.8.2 (2024-07-03)

GitHub release

What's Changed

Fixes

  • Fix issue with assertion caused by pluggable schema validator by @dmontagu in #9838

v2.8.1 (2024-07-03)

GitHub release

What's Changed

Packaging

  • Bump ruff to v0.5.0 and pyright to v1.1.369 by @sydney-runkle in #9801
  • Bump pydantic-core to v2.20.1, pydantic-extra-types to v2.9.0 by @sydney-runkle in #9832

Fixes

  • Fix breaking change in to_snake from v2.7 -> v2.8 by @sydney-runkle in #9812
  • Fix list constraint json schema application by @sydney-runkle in #9818
  • Support time duration more than 23 by @nix010 in pydantic/speedate#64
  • Fix millisecond fraction being handled with the wrong scale by @davidhewitt in pydantic/speedate#65
  • Handle negative fractional durations correctly by @sydney-runkle in pydantic/speedate#71

v2.8.0 (2024-07-01)

GitHub release

The code released in v2.8.0 is functionally identical to that of v2.8.0b1.

What's Changed

Packaging

  • Update citation version automatically with new releases by @sydney-runkle in #9673
  • Bump pyright to v1.1.367 and add type checking tests for pipeline API by @adriangb in #9674
  • Update pydantic.v1 stub to v1.10.17 by @sydney-runkle in #9707
  • General package updates to prep for v2.8.0b1 by @sydney-runkle in #9741
  • Bump pydantic-core to v2.20.0 by @sydney-runkle in #9745
  • Add support for Python 3.13 by @sydney-runkle in #9743
  • Update pdm version used for pdm.lock to v2.16.1 by @sydney-runkle in #9761
  • Update to ruff v0.4.8 by @Viicos in #9585

New Features

  • Experimental: support defer_build for TypeAdapter by @MarkusSintonen in #8939
  • Implement deprecated field in json schema by @NeevCohen in #9298
  • Experimental: Add pipeline API by @adriangb in #9459
  • Add support for programmatic title generation by @NeevCohen in #9183
  • Implement fail_fast feature by @uriyyo in #9708
  • Add ser_json_inf_nan='strings' mode to produce valid JSON by @josh-newman in pydantic/pydantic-core#1307

Changes

  • Add warning when "alias" is set in ignored Annotated field by @nix010 in #9170
  • Support serialization of some serializable defaults in JSON schema by @sydney-runkle in #9624
  • Relax type specification for __validators__ values in create_model by @sydney-runkle in #9697
  • Breaking Change: Improve smart union matching logic by @sydney-runkle in pydantic/pydantic-core#1322 You can read more about our smart union matching logic here. In some cases, if the old behavior is desired, you can switch to left-to-right mode and change the order of your Union members.

Performance

Internal Improvements
  • ⚡️ Speed up _display_error_loc() by 25% in pydantic/v1/error_wrappers.py by @misrasaurabh1 in #9653
  • ⚡️ Speed up _get_all_json_refs() by 34% in pydantic/json_schema.py by @misrasaurabh1 in #9650
  • ⚡️ Speed up is_pydantic_dataclass() by 41% in pydantic/dataclasses.py by @misrasaurabh1 in #9652
  • ⚡️ Speed up to_snake() by 27% in pydantic/alias_generators.py by @misrasaurabh1 in #9747
  • ⚡️ Speed up unwrap_wrapped_function() by 93% in pydantic/_internal/_decorators.py by @misrasaurabh1 in #9727

Fixes

  • Replace __spec__.parent with __package__ by @hramezani in #9331
  • Fix Outputted Model JSON Schema for Sequence type by @anesmemisevic in #9303
  • Fix typing of _frame_depth by @Viicos in #9353
  • Make ImportString json schema compatible by @amitschang in #9344
  • Hide private attributes (PrivateAttr) from __init__ signature in type checkers by @idan22moral in #9293
  • Make detection of TypeVar defaults robust to the CPython PEP-696 implementation by @AlexWaygood in #9426
  • Fix usage of PlainSerializer with builtin types by @Viicos in #9450
  • Add more robust custom validation examples by @ChrisPappalardo in #9468
  • Fix ignored strict specification for StringConstraint(strict=False) by @vbmendes in #9476
  • Breaking Change: Use PEP 570 syntax by @Viicos in #9479
  • Use Self where possible by @Viicos in #9479
  • Do not alter RootModel.model_construct signature in the mypy plugin by @Viicos in #9480
  • Fixed type hint of validation_context by @OhioDschungel6 in #9508
  • Support context being passed to TypeAdapter's dump_json/dump_python by @alexcouper in #9495
  • Updates type signature for Field() constructor by @bjmc in #9484
  • Improve builtin alias generators by @sydney-runkle in #9561
  • Fix typing of TypeAdapter by @Viicos in #9570
  • Add fallback default value for private fields in __setstate__ of BaseModel by @anhpham1509 in #9584
  • Support PEP 746 by @adriangb in #9587
  • Allow validator and serializer functions to have default values by @Viicos in #9478
  • Fix bug with mypy plugin's handling of covariant TypeVar fields by @dmontagu in #9606
  • Fix multiple annotation / constraint application logic by @sydney-runkle in #9623
  • Respect regex flags in validation and json schema by @sydney-runkle in #9591
  • Fix type hint on IpvAnyAddress by @sydney-runkle in #9640
  • Allow a field specifier on __pydantic_extra__ by @dmontagu in #9659
  • Use normalized case for file path comparison by @sydney-runkle in #9737
  • Modify constraint application logic to allow field constraints on Optional[Decimal] by @lazyhope in #9754
  • validate_call type params fix by @sydney-runkle in #9760
  • Check all warnings returned by pytest.warns() by @s-t-e-v-e-n-k in #9702
  • Reuse re.Pattern object in regex patterns to allow for regex flags by @sydney-runkle in pydantic/pydantic-core#1318

New Contributors

  • @idan22moral made their first contribution in #9294
  • @anesmemisevic made their first contribution in #9303
  • @max-muoto made their first contribution in #9338
  • @amitschang made their first contribution in #9344
  • @paulmartin91 made their first contribution in #9410
  • @OhioDschungel6 made their first contribution in #9405
  • @AlexWaygood made their first contribution in #9426
  • @kinuax made their first contribution in #9433
  • @antoni-jamiolkowski made their first contribution in #9431
  • @candleindark made their first contribution in #9448
  • @nix010 made their first contribution in #9170
  • @tomy0000000 made their first contribution in #9457
  • @vbmendes made their first contribution in #9470
  • @micheleAlberto made their first contribution in #9471
  • @ChrisPappalardo made their first contribution in #9468
  • @blueTurtz made their first contribution in #9475
  • @WinterBlue16 made their first contribution in #9477
  • @bittner made their first contribution in #9500
  • @alexcouper made their first contribution in #9495
  • @bjmc made their first contribution in #9484
  • @pjvv made their first contribution in #9529
  • @nedbat made their first contribution in #9530
  • @gunnellEvan made their first contribution in #9469
  • @jaymbans made their first contribution in #9531
  • @MarcBresson made their first contribution in #9534
  • @anhpham1509 made their first contribution in #9584
  • @K-dash made their first contribution in #9595
  • @s-t-e-v-e-n-k made their first contribution in #9527
  • @airwoodix made their first contribution in #9506
  • @misrasaurabh1 made their first contribution in #9653
  • @AlessandroMiola made their first contribution in #9740
  • @mylapallilavanyaa made their first contribution in #9746
  • @lazyhope made their first contribution in #9754
  • @YassinNouh21 made their first contribution in #9759

v2.8.0b1 (2024-06-27)

Pre-release, see the GitHub release for details.

v2.7.4 (2024-06-12)

Github release

What's Changed

Packaging

  • Bump pydantic.v1 to v1.10.16 reference by @sydney-runkle in #9639

Fixes

  • Specify recursive_guard as kwarg in FutureRef._evaluate by @vfazio in #9612

v2.7.3 (2024-06-03)

GitHub release

What's Changed

Packaging

  • Bump pydantic-core to v2.18.4 by @sydney-runkle in #9550

Fixes

v2.7.2 (2024-05-28)

GitHub release

What's Changed

Packaging

  • Bump pydantic-core to v2.18.3 by @sydney-runkle in #9515

Fixes

v2.7.1 (2024-04-23)

GitHub release

What's Changed

Packaging

  • Bump pydantic-core to v2.18.2 by @sydney-runkle in #9307

New Features

  • Ftp and Websocket connection strings support by @CherrySuryp in #9205

Changes

  • Use field description for RootModel schema description when there is … by @LouisGobert in #9214

Fixes

  • Fix validation_alias behavior with model_construct for AliasChoices and AliasPath by @sydney-runkle in #9223
  • Revert typing.Literal and import it outside the TYPE_CHECKING block by @frost-nzcr4 in #9232
  • Fix Secret serialization schema, applicable for unions by @sydney-runkle in #9240
  • Fix strict application to function-after with use_enum_values by @sydney-runkle in #9279
  • Address case where model_construct on a class which defines model_post_init fails with AttributeError by @babygrimes in #9168
  • Fix model_json_schema with config types by @NeevCohen in #9287
  • Support multiple zeros as an int by @samuelcolvin in pydantic/pydantic-core#1269
  • Fix validation of ints with leading unary plus by @cknv in pydantic/pydantic-core#1272
  • Fix interaction between extra != 'ignore' and from_attributes=True by @davidhewitt in pydantic/pydantic-core#1276
  • Handle error from Enum's missing function as ValidationError by @sydney-runkle in pydantic/pydantic-core#1274
  • Fix memory leak with Iterable validation by @davidhewitt in pydantic/pydantic-core#1271

New Contributors

  • @zzstoatzz made their first contribution in #9219
  • @frost-nzcr4 made their first contribution in #9232
  • @CherrySuryp made their first contribution in #9205
  • @vagenas made their first contribution in #9268
  • @ollz272 made their first contribution in #9262
  • @babygrimes made their first contribution in #9168
  • @swelborn made their first contribution in #9296
  • @kf-novi made their first contribution in #9236
  • @lgeiger made their first contribution in #9288

v2.7.0 (2024-04-11)

GitHub release

The code released in v2.7.0 is practically identical to that of v2.7.0b1.

What's Changed

Packaging

New Features

  • Extract attribute docstrings from FieldInfo.description by @Viicos in #6563
  • Add a with_config decorator to comply with typing spec by @Viicos in #8611
  • Allow an optional separator splitting the value and unit of the result of ByteSize.human_readable by @jks15satoshi in #8706
  • Add generic Secret base type by @conradogarciaberrotaran in #8519
  • Make use of Sphinx inventories for cross references in docs by @Viicos in #8682
  • Add environment variable to disable plugins by @geospackle in #8767
  • Add support for deprecated fields by @Viicos in #8237
  • Allow field_serializer('*') by @ornariece in #9001
  • Handle a case when model_config is defined as a model property by @alexeyt101 in #9004
  • Update create_model() to support typing.Annotated as input by @wannieman98 in #8947
  • Add ClickhouseDsn support by @solidguy7 in #9062
  • Add support for re.Pattern[str] to pattern field by @jag-k in #9053
  • Support for serialize_as_any runtime setting by @sydney-runkle in #8830
  • Add support for typing.Self by @Youssefares in #9023
  • Ability to pass context to serialization by @ornariece in #8965
  • Add feedback widget to docs with flarelytics integration by @sydney-runkle in #9129
  • Support for parsing partial JSON strings in Python by @samuelcolvin in pydantic/jiter#66

Finalized in v2.7.0, rather than v2.7.0b1:

  • Add support for field level number to str coercion option by @NeevCohen in #9137
  • Update warnings parameter for serialization utilities to allow raising a warning by @Lance-Drane in #9166

Changes

  • Correct docs, logic for model_construct behavior with extra by @sydney-runkle in #8807
  • Improve error message for improper RootModel subclasses by @sydney-runkle in #8857
  • Breaking Change: Use PEP570 syntax by @Viicos in #8940
  • Add enum and type to the JSON schema for single item literals by @dmontagu in #8944
  • Deprecate update_json_schema internal function by @sydney-runkle in #9125
  • Serialize duration to hour minute second, instead of just seconds by @kakilangit in pydantic/speedate#50
  • Trimming str before parsing to int and float by @hungtsetse in pydantic/pydantic-core#1203

Performance

  • enum validator improvements by @samuelcolvin in #9045
  • Move enum validation and serialization to Rust by @samuelcolvin in #9064
  • Improve schema generation for nested dataclasses by @sydney-runkle in #9114
  • Fast path for ASCII python string creation in JSON by @samuelcolvin in in pydantic/jiter#72
  • SIMD integer and string JSON parsing on aarch64(Note: SIMD on x86 will be implemented in a future release) by @samuelcolvin in in pydantic/jiter#65
  • Support JSON Cow<str> from jiter by @davidhewitt in pydantic/pydantic-core#1231
  • MAJOR performance improvement: update to PyO3 0.21 final by @davidhewitt in pydantic/pydantic-core#1248
  • cache Python strings by @samuelcolvin in pydantic/pydantic-core#1240

Fixes

  • Fix strict parsing for some Sequences by @sydney-runkle in #8614
  • Add a check on the existence of __qualname__ by @anci3ntr0ck in #8642
  • Handle __pydantic_extra__ annotation being a string or inherited by @alexmojaki in #8659
  • Fix json validation for NameEmail by @Holi0317 in #8650
  • Fix type-safety of attribute access in BaseModel by @bluenote10 in #8651
  • Fix bug with mypy plugin and no_strict_optional = True by @dmontagu in #8666
  • Fix ByteSize error type change by @sydney-runkle in #8681
  • Fix inheriting annotations in dataclasses by @sydney-runkle in #8679
  • Fix regression in core schema generation for indirect definition references by @dmontagu in #8702
  • Fix unsupported types bug with plain validator by @sydney-runkle in #8710
  • Reverting problematic fix from 2.6 release, fixing schema building bug by @sydney-runkle in #8718
  • fixes __pydantic_config__ ignored for TypeDict by @13sin in #8734
  • Fix test failures with pytest v8.0.0 due to pytest.warns() starting to work inside pytest.raises() by @mgorny in #8678
  • Use is_valid_field from 1.x for mypy plugin by @DanielNoord in #8738
  • Better-support mypy strict equality flag by @dmontagu in #8799
  • model_json_schema export with Annotated types misses 'required' parameters by @LouisGobert in #8793
  • Fix default inclusion in FieldInfo.__repr_args__ by @sydney-runkle in #8801
  • Fix resolution of forward refs in dataclass base classes that are not present in the subclass module namespace by @matsjoyce-refeyn in #8751
  • Fix BaseModel type annotations to be resolvable by typing.get_type_hints by @devmonkey22 in #7680
  • Fix: allow empty string aliases with AliasGenerator by @sydney-runkle in #8810
  • Fix test along with date -> datetime timezone assumption fix by @sydney-runkle in #8823
  • Fix deprecation warning with usage of ast.Str by @Viicos in #8837
  • Add missing deprecated decorators by @Viicos in #8877
  • Fix serialization of NameEmail if name includes an email address by @NeevCohen in #8860
  • Add information about class in error message of schema generation by @Czaki in #8917
  • Make TypeAdapter's typing compatible with special forms by @adriangb in #8923
  • Fix issue with config behavior being baked into the ref schema for enums by @dmontagu in #8920
  • More helpful error re wrong model_json_schema usage by @sydney-runkle in #8928
  • Fix nested discriminated union schema gen, pt 2 by @sydney-runkle in #8932
  • Fix schema build for nested dataclasses / TypedDicts with discriminators by @sydney-runkle in #8950
  • Remove unnecessary logic for definitions schema gen with discriminated unions by @sydney-runkle in #8951
  • Fix handling of optionals in mypy plugin by @dmontagu in #9008
  • Fix PlainSerializer usage with std type constructor by @sydney-runkle in #9031
  • Remove unnecessary warning for config in plugin by @dmontagu in #9039
  • Fix default value serializing by @NeevCohen in #9066
  • Fix extra fields check in Model.__getattr__() by @NeevCohen in #9082
  • Fix ClassVar forward ref inherited from parent class by @alexmojaki in #9097
  • fix sequence like validator with strict True by @andresliszt in #8977
  • Improve warning message when a field name shadows a field in a parent model by @chan-vince in #9105
  • Do not warn about shadowed fields if they are not redefined in a child class by @chan-vince in #9111
  • Fix discriminated union bug with unsubstituted type var by @sydney-runkle in #9124
  • Support serialization of deque when passed to Sequence[blah blah blah] by @sydney-runkle in #9128
  • Init private attributes from super-types in model_post_init by @Viicos in #9134
  • fix model_construct with validation_alias by @ornariece in #9144
  • Ensure json-schema generator handles Literal null types by @bruno-f-cruz in #9135
  • Fixed in v2.7.0: Fix allow extra generic by @dmontagu in #9193

New Contributors

  • @hungtsetse made their first contribution in #8546
  • @StrawHatDrag0n made their first contribution in #8583
  • @anci3ntr0ck made their first contribution in #8642
  • @Holi0317 made their first contribution in #8650
  • @bluenote10 made their first contribution in #8651
  • @ADSteele916 made their first contribution in #8703
  • @musicinmybrain made their first contribution in #8731
  • @jks15satoshi made their first contribution in #8706
  • @13sin made their first contribution in #8734
  • @DanielNoord made their first contribution in #8738
  • @conradogarciaberrotaran made their first contribution in #8519
  • @chris-griffin made their first contribution in #8775
  • @LouisGobert made their first contribution in #8793
  • @matsjoyce-refeyn made their first contribution in #8751
  • @devmonkey22 made their first contribution in #7680
  • @adamency made their first contribution in #8847
  • @MamfTheKramf made their first contribution in #8851
  • @ornariece made their first contribution in #9001
  • @alexeyt101 made their first contribution in #9004
  • @wannieman98 made their first contribution in #8947
  • @solidguy7 made their first contribution in #9062
  • @kloczek made their first contribution in #9047
  • @jag-k made their first contribution in #9053
  • @priya-gitTest made their first contribution in #9088
  • @Youssefares made their first contribution in #9023
  • @chan-vince made their first contribution in #9105
  • @bruno-f-cruz made their first contribution in #9135
  • @Lance-Drane made their first contribution in #9166

v2.7.0b1 (2024-04-03)

Pre-release, see the GitHub release for details.

v2.6.4 (2024-03-12)

GitHub release

What's Changed

Fixes

  • Fix usage of AliasGenerator with computed_field decorator by @sydney-runkle in #8806
  • Fix nested discriminated union schema gen, pt 2 by @sydney-runkle in #8932
  • Fix bug with no_strict_optional=True caused by API deferral by @dmontagu in #8826

v2.6.3 (2024-02-27)

GitHub release

What's Changed

Packaging

  • Update pydantic-settings version in the docs by @hramezani in #8906

Fixes

  • Fix discriminated union schema gen bug by @sydney-runkle in #8904

v2.6.2 (2024-02-23)

GitHub release

What's Changed

Packaging

  • Upgrade to pydantic-core 2.16.3 by @sydney-runkle in #8879

Fixes

v2.6.1 (2024-02-05)

GitHub release

What's Changed

Packaging

  • Upgrade to pydantic-core 2.16.2 by @sydney-runkle in #8717

Fixes

  • Fix bug with mypy plugin and no_strict_optional = True by @dmontagu in #8666
  • Fix ByteSize error type change by @sydney-runkle in #8681
  • Fix inheriting Field annotations in dataclasses by @sydney-runkle in #8679
  • Fix regression in core schema generation for indirect definition references by @dmontagu in #8702
  • Fix unsupported types bug with PlainValidator by @sydney-runkle in #8710
  • Reverting problematic fix from 2.6 release, fixing schema building bug by @sydney-runkle in #8718
  • Fix warning for tuple of wrong size in Union by @davidhewitt in pydantic/pydantic-core#1174
  • Fix computed_field JSON serializer exclude_none behavior by @sydney-runkle in pydantic/pydantic-core#1187

v2.6.0 (2024-01-23)

GitHub release

The code released in v2.6.0 is practically identical to that of v2.6.0b1.

What's Changed

Packaging

  • Check for email-validator version >= 2.0 by @commonism in #6033
  • Upgrade `ruff`` target version to Python 3.8 by @Elkiwa in #8341
  • Update to pydantic-extra-types==2.4.1 by @yezz123 in #8478
  • Update to pyright==1.1.345 by @Viicos in #8453
  • Update pydantic-core from 2.14.6 to 2.16.1, significant changes from these updates are described below, full changelog here

New Features

  • Add NatsDsn by @ekeew in #6874
  • Add ConfigDict.ser_json_inf_nan by @davidhewitt in #8159
  • Add types.OnErrorOmit by @adriangb in #8222
  • Support AliasGenerator usage by @sydney-runkle in #8282
  • Add Pydantic People Page to docs by @sydney-runkle in #8345
  • Support yyyy-MM-DD datetime parsing by @sydney-runkle in #8404
  • Added bits conversions to the ByteSize class #8415 by @luca-matei in #8507
  • Enable json schema creation with type ByteSize by @geospackle in #8537
  • Add eval_type_backport to handle union operator and builtin generic subscripting in older Pythons by @alexmojaki in #8209
  • Add support for dataclass fields init by @dmontagu in #8552
  • Implement pickling for ValidationError by @davidhewitt in pydantic/pydantic-core#1119
  • Add unified tuple validator that can handle "variadic" tuples via PEP-646 by @dmontagu in pydantic/pydantic-core#865

Changes

  • Drop Python3.7 support by @hramezani in #7188
  • Drop Python 3.7, and PyPy 3.7 and 3.8 by @davidhewitt in pydantic/pydantic-core#1129
  • Use positional-only self in BaseModel constructor, so no field name can ever conflict with it by @ariebovenberg in #8072
  • Make @validate_call return a function instead of a custom descriptor - fixes binding issue with inheritance and adds self/cls argument to validation errors by @alexmojaki in #8268
  • Exclude BaseModel docstring from JSON schema description by @sydney-runkle in #8352
  • Introducing classproperty decorator for model_computed_fields by @Jocelyn-Gas in #8437
  • Explicitly raise an error if field names clashes with types by @Viicos in #8243
  • Use stricter serializer for unions of simple types by @alexdrydew pydantic/pydantic-core#1132

Performance

Fixes

  • Move getattr warning in deprecated BaseConfig by @tlambert03 in #7183
  • Only hash model_fields, not whole __dict__ by @alexmojaki in #7786
  • Fix mishandling of unions while freezing types in the mypy plugin by @dmontagu in #7411
  • Fix mypy error on untyped ClassVar by @vincent-hachin-wmx in #8138
  • Only compare pydantic fields in BaseModel.__eq__ instead of whole __dict__ by @QuentinSoubeyranAqemia in #7825
  • Update strict docstring in model_validate method. by @LukeTonin in #8223
  • Fix overload position of computed_field by @Viicos in #8227
  • Fix custom type type casting used in multiple attributes by @ianhfc in #8066
  • Fix issue not allowing validate_call decorator to be dynamically assigned to a class method by @jusexton in #8249
  • Fix issue unittest.mock deprecation warnings by @ibleedicare in #8262
  • Added tests for the case JsonValue contains subclassed primitive values by @jusexton in #8286
  • Fix mypy error on free before validator (classmethod) by @sydney-runkle in #8285
  • Fix to_snake conversion by @jevins09 in #8316
  • Fix type annotation of ModelMetaclass.__prepare__ by @slanzmich in #8305
  • Disallow config specification when initializing a TypeAdapter when the annotated type has config already by @sydney-runkle in #8365
  • Fix a naming issue with JSON schema for generics parametrized by recursive type aliases by @dmontagu in #8389
  • Fix type annotation in pydantic people script by @shenxiangzhuang in #8402
  • Add support for field alias in dataclass signature by @NeevCohen in #8387
  • Fix bug with schema generation with Field(...) in a forward ref by @dmontagu in #8494
  • Fix ordering of keys in __dict__ with model_construct call by @sydney-runkle in #8500
  • Fix module path_type creation when globals does not contain __name__ by @hramezani in #8470
  • Fix for namespace issue with dataclasses with from __future__ import annotations by @sydney-runkle in #8513
  • Fix: make function validator types positional-only by @pmmmwh in #8479
  • Fix usage of @deprecated by @Viicos in #8294
  • Add more support for private attributes in model_construct call by @sydney-runkle in #8525
  • Use a stack for the types namespace by @dmontagu in #8378
  • Fix schema-building bug with TypeAliasType for types with refs by @dmontagu in #8526
  • Support pydantic.Field(repr=False) in dataclasses by @tigeryy2 in #8511
  • Override dataclass_transform behavior for RootModel by @Viicos in #8163
  • Refactor signature generation for simplicity by @sydney-runkle in #8572
  • Fix ordering bug of PlainValidator annotation by @Anvil in #8567
  • Fix exclude_none for json serialization of computed_fields by @sydney-runkle in pydantic/pydantic-core#1098
  • Support yyyy-MM-DD string for datetimes by @sydney-runkle in pydantic/pydantic-core#1124
  • Tweak ordering of definitions in generated schemas by @StrawHatDrag0n in #8583

New Contributors

pydantic

  • @ekeew made their first contribution in #6874
  • @lambertsbennett made their first contribution in #8054
  • @vincent-hachin-wmx made their first contribution in #8138
  • @QuentinSoubeyranAqemia made their first contribution in #7825
  • @ariebovenberg made their first contribution in #8072
  • @LukeTonin made their first contribution in #8223
  • @denisart made their first contribution in #8231
  • @ianhfc made their first contribution in #8066
  • @eonu made their first contribution in #8255
  • @amandahla made their first contribution in #8263
  • @ibleedicare made their first contribution in #8262
  • @jevins09 made their first contribution in #8316
  • @cuu508 made their first contribution in #8322
  • @slanzmich made their first contribution in #8305
  • @jensenbox made their first contribution in #8331
  • @szepeviktor made their first contribution in #8356
  • @Elkiwa made their first contribution in #8341
  • @parhamfh made their first contribution in #8395
  • @shenxiangzhuang made their first contribution in #8402
  • @NeevCohen made their first contribution in #8387
  • @zby made their first contribution in #8497
  • @patelnets made their first contribution in #8491
  • @edwardwli made their first contribution in #8503
  • @luca-matei made their first contribution in #8507
  • @Jocelyn-Gas made their first contribution in #8437
  • @bL34cHig0 made their first contribution in #8501
  • @tigeryy2 made their first contribution in #8511
  • @geospackle made their first contribution in #8537
  • @Anvil made their first contribution in #8567
  • @hungtsetse made their first contribution in #8546
  • @StrawHatDrag0n made their first contribution in #8583

pydantic-core

v2.6.0b1 (2024-01-19)

Pre-release, see the GitHub release for details.

v2.5.3 (2023-12-22)

GitHub release

What's Changed

Packaging

  • uprev pydantic-core to 2.14.6

Fixes

v2.5.2 (2023-11-22)

GitHub release

What's Changed

Packaging

  • uprev pydantic-core to 2.14.5

New Features

  • Add ConfigDict.ser_json_inf_nan by @davidhewitt in #8159

Fixes

v2.5.1 (2023-11-15)

GitHub release

What's Changed

Packaging

  • uprev pydantic-core to 2.14.3 by @samuelcolvin in #8120

Fixes

  • Fix package description limit by @dmontagu in #8097
  • Fix ValidateCallWrapper error when creating a model which has a @validate_call wrapped field annotation by @sydney-runkle in #8110

v2.5.0 (2023-11-13)

GitHub release

The code released in v2.5.0 is functionally identical to that of v2.5.0b1.

What's Changed

Packaging

  • Update pydantic-core from 2.10.1 to 2.14.1, significant changes from these updates are described below, full changelog here
  • Update to pyright==1.1.335 by @Viicos in #8075

New Features

  • Allow plugins to catch non ValidationError errors by @adriangb in #7806
  • Support __doc__ argument in create_model() by @chris-spann in #7863
  • Expose regex_engine flag - meaning you can use with the Rust or Python regex libraries in constraints by @utkini in #7768
  • Save return type generated from type annotation in ComputedFieldInfo by @alexmojaki in #7889
  • Adopting ruff formatter by @Luca-Blight in #7930
  • Added validation_error_cause to config by @zakstucke in #7626
  • Make path of the item to validate available in plugin by @hramezani in #7861
  • Add CallableDiscriminator and Tag by @dmontagu in #7983
    • CallableDiscriminator renamed to Discriminator by @dmontagu in #8047
  • Make union case tags affect union error messages by @dmontagu in #8001
  • Add examples and json_schema_extra to @computed_field by @alexmojaki in #8013
  • Add JsonValue type by @dmontagu in #7998
  • Allow str as argument to Discriminator by @dmontagu in #8047
  • Add SchemaSerializer.__reduce__ method to enable pickle serialization by @edoakes in pydantic/pydantic-core#1006

Changes

  • Significant Change: replace ultra_strict with new smart union implementation, the way unions are validated has changed significantly to improve performance and correctness, we have worked hard to absolutely minimise the number of cases where behaviour has changed, see the PR for details - by @davidhewitt in pydantic/pydantic-core#867
  • Add support for instance method reassignment when extra='allow' by @sydney-runkle in #7683
  • Support JSON schema generation for Enum types with no cases by @sydney-runkle in #7927
  • Warn if a class inherits from Generic before BaseModel by @alexmojaki in #7891

Performance

Fixes

  • Fix mypy issue with subclasses of RootModel by @sydney-runkle in #7677
  • Properly rebuild the FieldInfo when a forward ref gets evaluated by @dmontagu in #7698
  • Fix failure to load SecretStr from JSON (regression in v2.4) by @sydney-runkle in #7729
  • Fix defer_build behavior with TypeAdapter by @sydney-runkle in #7736
  • Improve compatibility with legacy mypy versions by @dmontagu in #7742
  • Fix: update TypeVar handling when default is not set by @pmmmwh in #7719
  • Support specification of strict on Enum type fields by @sydney-runkle in #7761
  • Wrap weakref.ref instead of subclassing to fix cloudpickle serialization by @edoakes in #7780
  • Keep values of private attributes set within model_post_init in subclasses by @alexmojaki in #7775
  • Add more specific type for non-callable json_schema_extra by @alexmojaki in #7803
  • Raise an error when deleting frozen (model) fields by @alexmojaki in #7800
  • Fix schema sorting bug with default values by @sydney-runkle in #7817
  • Use generated alias for aliases that are not specified otherwise by @alexmojaki in #7802
  • Support strict specification for UUID types by @sydney-runkle in #7865
  • JSON schema: fix extra parameter handling by @me-and in #7810
  • Fix: support pydantic.Field(kw_only=True) with inherited dataclasses by @PrettyWood in #7827
  • Support validate_call decorator for methods in classes with __slots__ by @sydney-runkle in #7883
  • Fix pydantic dataclass problem with dataclasses.field default by @hramezani in #7898
  • Fix schema generation for generics with union type bounds by @sydney-runkle in #7899
  • Fix version for importlib_metadata on python 3.7 by @sydney-runkle in #7904
  • Support | operator (Union) in PydanticRecursiveRef by @alexmojaki in #7892
  • Fix display_as_type for TypeAliasType in python 3.12 by @dmontagu in #7929
  • Add support for NotRequired generics in TypedDict by @sydney-runkle in #7932
  • Make generic TypeAliasType specifications produce different schema definitions by @alexdrydew in #7893
  • Added fix for signature of inherited dataclass by @howsunjow in #7925
  • Make the model name generation more robust in JSON schema by @joakimnordling in #7881
  • Fix plurals in validation error messages (in tests) by @Iipin in #7972
  • PrivateAttr is passed from Annotated default position by @tabassco in #8004
  • Don't decode bytes (which may not be UTF8) when displaying SecretBytes by @alexmojaki in #8012
  • Use classmethod instead of classmethod[Any, Any, Any] by @Mr-Pepe in #7979
  • Clearer error on invalid Plugin by @samuelcolvin in #8023
  • Correct pydantic dataclasses import by @samuelcolvin in #8027
  • Fix misbehavior for models referencing redefined type aliases by @dmontagu in #8050
  • Fix Optional field with validate_default only performing one field validation by @sydney-runkle in pydantic/pydantic-core#1002
  • Fix definition-ref bug with Dict keys by @sydney-runkle in pydantic/pydantic-core#1014
  • Fix bug allowing validation of bool types with coerce_numbers_to_str=True by @sydney-runkle in pydantic/pydantic-core#1017
  • Don't accept NaN in float and decimal constraints by @davidhewitt in pydantic/pydantic-core#1037
  • Add lax_str and lax_int support for enum values not inherited from str/int by @michaelhly in pydantic/pydantic-core#1015
  • Support subclasses in lists in Union of List types by @sydney-runkle in pydantic/pydantic-core#1039
  • Allow validation against max_digits and decimals to pass if normalized or non-normalized input is valid by @sydney-runkle in pydantic/pydantic-core#1049
  • Fix: proper pluralization in ValidationError messages by @Iipin in pydantic/pydantic-core#1050
  • Disallow the string '-' as datetime input by @davidhewitt in pydantic/speedate#52 & pydantic/pydantic-core#1060
  • Fix: NaN and Inf float serialization by @davidhewitt in pydantic/pydantic-core#1062
  • Restore manylinux-compatible PGO builds by @davidhewitt in pydantic/pydantic-core#1068

New Contributors

pydantic

  • @schneebuzz made their first contribution in #7699
  • @edoakes made their first contribution in #7780
  • @alexmojaki made their first contribution in #7775
  • @NickG123 made their first contribution in #7751
  • @gowthamgts made their first contribution in #7830
  • @jamesbraza made their first contribution in #7848
  • @laundmo made their first contribution in #7850
  • @rahmatnazali made their first contribution in #7870
  • @waterfountain1996 made their first contribution in #7878
  • @chris-spann made their first contribution in #7863
  • @me-and made their first contribution in #7810
  • @utkini made their first contribution in #7768
  • @bn-l made their first contribution in #7744
  • @alexdrydew made their first contribution in #7893
  • @Luca-Blight made their first contribution in #7930
  • @howsunjow made their first contribution in #7925
  • @joakimnordling made their first contribution in #7881
  • @icfly2 made their first contribution in #7976
  • @Yummy-Yums made their first contribution in #8003
  • @Iipin made their first contribution in #7972
  • @tabassco made their first contribution in #8004
  • @Mr-Pepe made their first contribution in #7979
  • @0x00cl made their first contribution in #8010
  • @barraponto made their first contribution in #8032

pydantic-core

v2.5.0b1 (2023-11-09)

Pre-release, see the GitHub release for details.

v2.4.2 (2023-09-27)

GitHub release

What's Changed

Fixes

  • Fix bug with JSON schema for sequence of discriminated union by @dmontagu in #7647
  • Fix schema references in discriminated unions by @adriangb in #7646
  • Fix json schema generation for recursive models by @adriangb in #7653
  • Fix models_json_schema for generic models by @adriangb in #7654
  • Fix xfailed test for generic model signatures by @adriangb in #7658

New Contributors

  • @austinorr made their first contribution in #7657
  • @peterHoburg made their first contribution in #7670

v2.4.1 (2023-09-26)

GitHub release

What's Changed

Packaging

  • Update pydantic-core to 2.10.1 by @davidhewitt in #7633

Fixes

  • Serialize unsubstituted type vars as Any by @adriangb in #7606
  • Remove schema building caches by @adriangb in #7624
  • Fix an issue where JSON schema extras weren't JSON encoded by @dmontagu in #7625

v2.4.0 (2023-09-22)

GitHub release

What's Changed

Packaging

  • Update pydantic-core to 2.10.0 by @samuelcolvin in #7542

New Features

  • Add Base64Url types by @dmontagu in #7286
  • Implement optional number to str coercion by @lig in #7508
  • Allow access to field_name and data in all validators if there is data and a field name by @samuelcolvin in #7542
  • Add BaseModel.model_validate_strings and TypeAdapter.validate_strings by @hramezani in #7552
  • Add Pydantic plugins experimental implementation by @lig @samuelcolvin and @Kludex in #6820

Changes

  • Do not override model_post_init in subclass with private attrs by @Viicos in #7302
  • Make fields with defaults not required in the serialization schema by default by @dmontagu in #7275
  • Mark Extra as deprecated by @disrupted in #7299
  • Make EncodedStr a dataclass by @Kludex in #7396
  • Move annotated_handlers to be public by @samuelcolvin in #7569

Performance

  • Simplify flattening and inlining of CoreSchema by @adriangb in #7523
  • Remove unused copies in CoreSchema walking by @adriangb in #7528
  • Add caches for collecting definitions and invalid schemas from a CoreSchema by @adriangb in #7527
  • Eagerly resolve discriminated unions and cache cases where we can't by @adriangb in #7529
  • Replace dict.get and dict.setdefault with more verbose versions in CoreSchema building hot paths by @adriangb in #7536
  • Cache invalid CoreSchema discovery by @adriangb in #7535
  • Allow disabling CoreSchema validation for faster startup times by @adriangb in #7565

Fixes

  • Fix config detection for TypedDict from grandparent classes by @dmontagu in #7272
  • Fix hash function generation for frozen models with unusual MRO by @dmontagu in #7274
  • Make strict config overridable in field for Path by @hramezani in #7281
  • Use ser_json_<timedelta|bytes> on default in GenerateJsonSchema by @Kludex in #7269
  • Adding a check that alias is validated as an identifier for Python by @andree0 in #7319
  • Raise an error when computed field overrides field by @sydney-runkle in #7346
  • Fix applying SkipValidation to referenced schemas by @adriangb in #7381
  • Enforce behavior of private attributes having double leading underscore by @lig in #7265
  • Standardize __get_pydantic_core_schema__ signature by @hramezani in #7415
  • Fix generic dataclass fields mutation bug (when using TypeAdapter) by @sydney-runkle in #7435
  • Fix TypeError on model_validator in wrap mode by @pmmmwh in #7496
  • Improve enum error message by @hramezani in #7506
  • Make repr work for instances that failed initialization when handling ValidationErrors by @dmontagu in #7439
  • Fixed a regular expression denial of service issue by limiting whitespaces by @prodigysml in #7360
  • Fix handling of UUID values having UUID.version=None by @lig in #7566
  • Fix __iter__ returning private cached_property info by @sydney-runkle in #7570
  • Improvements to version info message by @samuelcolvin in #7594

New Contributors

  • @15498th made their first contribution in #7238
  • @GabrielCappelli made their first contribution in #7213
  • @tobni made their first contribution in #7184
  • @redruin1 made their first contribution in #7282
  • @FacerAin made their first contribution in #7288
  • @acdha made their first contribution in #7297
  • @andree0 made their first contribution in #7319
  • @gordonhart made their first contribution in #7375
  • @pmmmwh made their first contribution in #7496
  • @disrupted made their first contribution in #7299
  • @prodigysml made their first contribution in #7360

v2.3.0 (2023-08-23)

GitHub release

  • 🔥 Remove orphaned changes file from repo by @lig in #7168
  • Add copy button on documentation by @Kludex in #7190
  • Fix docs on JSON type by @Kludex in #7189
  • Update mypy 1.5.0 to 1.5.1 in CI by @hramezani in #7191
  • fix download links badge by @samuelcolvin in #7200
  • add 2.2.1 to changelog by @samuelcolvin in #7212
  • Make ModelWrapValidator protocols generic by @dmontagu in #7154
  • Correct Field(..., exclude: bool) docs by @samuelcolvin in #7214
  • Make shadowing attributes a warning instead of an error by @adriangb in #7193
  • Document Base64Str and Base64Bytes by @Kludex in #7192
  • Fix config.defer_build for serialization first cases by @samuelcolvin in #7024
  • clean Model docstrings in JSON Schema by @samuelcolvin in #7210
  • fix #7228 (typo): docs in validators.md to correct validate_default kwarg by @lmmx in #7229
  • ✅ Implement tzinfo.fromutc method for TzInfo in pydantic-core by @lig in #7019
  • Support __get_validators__ by @hramezani in #7197

v2.2.1 (2023-08-18)

GitHub release

  • Make xfailing test for root model extra stop xfailing by @dmontagu in #6937
  • Optimize recursion detection by stopping on the second visit for the same object by @mciucu in #7160
  • fix link in docs by @tlambert03 in #7166
  • Replace MiMalloc w/ default allocator by @adriangb in pydantic/pydantic-core#900
  • Bump pydantic-core to 2.6.1 and prepare 2.2.1 release by @adriangb in #7176

v2.2.0 (2023-08-17)

GitHub release

  • Split "pipx install" setup command into two commands on the documentation site by @nomadmtb in #6869
  • Deprecate Field.include by @hramezani in #6852
  • Fix typo in default factory error msg by @hramezani in #6880
  • Simplify handling of typing.Annotated in GenerateSchema by @dmontagu in #6887
  • Re-enable fastapi tests in CI by @dmontagu in #6883
  • Make it harder to hit collisions with json schema defrefs by @dmontagu in #6566
  • Cleaner error for invalid input to Path fields by @samuelcolvin in #6903
  • 📝 support Coordinate Type by @yezz123 in #6906
  • Fix ForwardRef wrapper for py 3.10.0 (shim until bpo-45166) by @randomir in #6919
  • Fix misbehavior related to copying of RootModel by @dmontagu in #6918
  • Fix issue with recursion error caused by ParamSpec by @dmontagu in #6923
  • Add section about Constrained classes to the Migration Guide by @Kludex in #6924
  • Use main branch for badge links by @Viicos in #6925
  • Add test for v1/v2 Annotated discrepancy by @carlbordum in #6926
  • Make the v1 mypy plugin work with both v1 and v2 by @dmontagu in #6921
  • Fix issue where generic models couldn't be parametrized with BaseModel by @dmontagu in #6933
  • Remove xfail for discriminated union with alias by @dmontagu in #6938
  • add field_serializer to computed_field by @andresliszt in #6965
  • Use union_schema with Type[Union[...]] by @JeanArhancet in #6952
  • Fix inherited typeddict attributes / config by @adriangb in #6981
  • fix dataclass annotated before validator called twice by @davidhewitt in #6998
  • Update test-fastapi deselected tests by @hramezani in #7014
  • Fix validator doc format by @hramezani in #7015
  • Fix typo in docstring of model_json_schema by @AdamVinch-Federated in #7032
  • remove unused "type ignores" with pyright by @samuelcolvin in #7026
  • Add benchmark representing FastAPI startup time by @adriangb in #7030
  • Fix json_encoders for Enum subclasses by @adriangb in #7029
  • Update docstring of ser_json_bytes regarding base64 encoding by @Viicos in #7052
  • Allow @validate_call to work on async methods by @adriangb in #7046
  • Fix: mypy error with Settings and SettingsConfigDict by @JeanArhancet in #7002
  • Fix some typos (repeated words and it's/its) by @eumiro in #7063
  • Fix the typo in docstring by @harunyasar in #7062
  • Docs: Fix broken URL in the pydantic-settings package recommendation by @swetjen in #6995
  • Handle constraints being applied to schemas that don't accept it by @adriangb in #6951
  • Replace almost_equal_floats with math.isclose by @eumiro in #7082
  • bump pydantic-core to 2.5.0 by @davidhewitt in #7077
  • Add short_version and use it in links by @hramezani in #7115
  • 📝 Add usage link to RootModel by @Kludex in #7113
  • Revert "Fix default port for mongosrv DSNs (#6827)" by @Kludex in #7116
  • Clarify validate_default and _Unset handling in usage docs and migration guide by @benbenbang in #6950
  • Tweak documentation of Field.exclude by @Viicos in #7086
  • Do not require validate_assignment to use Field.frozen by @Viicos in #7103
  • tweaks to _core_utils by @samuelcolvin in #7040
  • Make DefaultDict working with set by @hramezani in #7126
  • Don't always require typing.Generic as a base for partially parametrized models by @dmontagu in #7119
  • Fix issue with JSON schema incorrectly using parent class core schema by @dmontagu in #7020
  • Fix xfailed test related to TypedDict and alias_generator by @dmontagu in #6940
  • Improve error message for NameEmail by @dmontagu in #6939
  • Fix generic computed fields by @dmontagu in #6988
  • Reflect namedtuple default values during validation by @dmontagu in #7144
  • Update dependencies, fix pydantic-core usage, fix CI issues by @dmontagu in #7150
  • Add mypy 1.5.0 by @hramezani in #7118
  • Handle non-json native enum values by @adriangb in #7056
  • document round_trip in Json type documentation by @jc-louis in #7137
  • Relax signature checks to better support builtins and C extension functions as validators by @adriangb in #7101
  • add union_mode='left_to_right' by @davidhewitt in #7151
  • Include an error message hint for inherited ordering by @yvalencia91 in #7124
  • Fix one docs link and resolve some warnings for two others by @dmontagu in #7153
  • Include Field extra keys name in warning by @hramezani in #7136

v2.1.1 (2023-07-25)

GitHub release

  • Skip FieldInfo merging when unnecessary by @dmontagu in #6862

v2.1.0 (2023-07-25)

GitHub release

  • Add StringConstraints for use as Annotated metadata by @adriangb in #6605
  • Try to fix intermittently failing CI by @adriangb in #6683
  • Remove redundant example of optional vs default. by @ehiggs-deliverect in #6676
  • Docs update by @samuelcolvin in #6692
  • Remove the Validate always section in validator docs by @adriangb in #6679
  • Fix recursion error in json schema generation by @adriangb in #6720
  • Fix incorrect subclass check for secretstr by @AlexVndnblcke in #6730
  • update pdm / pdm lockfile to 2.8.0 by @davidhewitt in #6714
  • unpin pdm on more CI jobs by @davidhewitt in #6755
  • improve source locations for auxiliary packages in docs by @davidhewitt in #6749
  • Assume builtins don't accept an info argument by @adriangb in #6754
  • Fix bug where calling help(BaseModelSubclass) raises errors by @hramezani in #6758
  • Fix mypy plugin handling of @model_validator(mode="after") by @ljodal in #6753
  • update pydantic-core to 2.3.1 by @davidhewitt in #6756
  • Mypy plugin for settings by @hramezani in #6760
  • Use contentSchema keyword for JSON schema by @dmontagu in #6715
  • fast-path checking finite decimals by @davidhewitt in #6769
  • Docs update by @samuelcolvin in #6771
  • Improve json schema doc by @hramezani in #6772
  • Update validator docs by @adriangb in #6695
  • Fix typehint for wrap validator by @dmontagu in #6788
  • 🐛 Fix validation warning for unions of Literal and other type by @lig in #6628
  • Update documentation for generics support in V2 by @tpdorsey in #6685
  • add pydantic-core build info to version_info() by @samuelcolvin in #6785
  • Fix pydantic dataclasses that use slots with default values by @dmontagu in #6796
  • Fix inheritance of hash function for frozen models by @dmontagu in #6789
  • ✨ Add SkipJsonSchema annotation by @Kludex in #6653
  • Error if an invalid field name is used with Field by @dmontagu in #6797
  • Add GenericModel to MOVED_IN_V2 by @adriangb in #6776
  • Remove unused code from docs/usage/types/custom.md by @hramezani in #6803
  • Fix float -> Decimal coercion precision loss by @adriangb in #6810
  • remove email validation from the north star benchmark by @davidhewitt in #6816
  • Fix link to mypy by @progsmile in #6824
  • Improve initialization hooks example by @hramezani in #6822
  • Fix default port for mongosrv DSNs by @dmontagu in #6827
  • Improve API documentation, in particular more links between usage and API docs by @samuelcolvin in #6780
  • update pydantic-core to 2.4.0 by @davidhewitt in #6831
  • Fix annotated_types.MaxLen validator for custom sequence types by @ImogenBits in #6809
  • Update V1 by @hramezani in #6833
  • Make it so callable JSON schema extra works by @dmontagu in #6798
  • Fix serialization issue with InstanceOf by @dmontagu in #6829
  • Add back support for json_encoders by @adriangb in #6811
  • Update field annotations when building the schema by @dmontagu in #6838
  • Use WeakValueDictionary to fix generic memory leak by @dmontagu in #6681
  • Add config.defer_build to optionally make model building lazy by @samuelcolvin in #6823
  • delegate UUID serialization to pydantic-core by @davidhewitt in #6850
  • Update json_encoders docs by @adriangb in #6848
  • Fix error message for staticmethod/classmethod order with validate_call by @dmontagu in #6686
  • Improve documentation for Config by @samuelcolvin in #6847
  • Update serialization doc to mention Field.exclude takes priority over call-time include/exclude by @hramezani in #6851
  • Allow customizing core schema generation by making GenerateSchema public by @adriangb in #6737

v2.0.3 (2023-07-05)

GitHub release

  • Mention PyObject (v1) moving to ImportString (v2) in migration doc by @slafs in #6456
  • Fix release-tweet CI by @Kludex in #6461
  • Revise the section on required / optional / nullable fields. by @ybressler in #6468
  • Warn if a type hint is not in fact a type by @adriangb in #6479
  • Replace TransformSchema with GetPydanticSchema by @dmontagu in #6484
  • Fix the un-hashability of various annotation types, for use in caching generic containers by @dmontagu in #6480
  • PYD-164: Rework custom types docs by @adriangb in #6490
  • Fix ci by @adriangb in #6507
  • Fix forward ref in generic by @adriangb in #6511
  • Fix generation of serialization JSON schemas for core_schema.ChainSchema by @dmontagu in #6515
  • Document the change in Field.alias behavior in Pydantic V2 by @hramezani in #6508
  • Give better error message attempting to compute the json schema of a model with undefined fields by @dmontagu in #6519
  • Document alias_priority by @tpdorsey in #6520
  • Add redirect for types documentation by @tpdorsey in #6513
  • Allow updating docs without release by @samuelcolvin in #6551
  • Ensure docs tests always run in the right folder by @dmontagu in #6487
  • Defer evaluation of return type hints for serializer functions by @dmontagu in #6516
  • Disable E501 from Ruff and rely on just Black by @adriangb in #6552
  • Update JSON Schema documentation for V2 by @tpdorsey in #6492
  • Add documentation of cyclic reference handling by @dmontagu in #6493
  • Remove the need for change files by @samuelcolvin in #6556
  • add "north star" benchmark by @davidhewitt in #6547
  • Update Dataclasses docs by @tpdorsey in #6470
  • ♻️ Use different error message on v1 redirects by @Kludex in #6595
  • ⬆ Upgrade pydantic-core to v2.2.0 by @lig in #6589
  • Fix serialization for IPvAny by @dmontagu in #6572
  • Improve CI by using PDM instead of pip to install typing-extensions by @adriangb in #6602
  • Add enum error type docs by @lig in #6603
  • 🐛 Fix max_length for unicode strings by @lig in #6559
  • Add documentation for accessing features via pydantic.v1 by @tpdorsey in #6604
  • Include extra when iterating over a model by @adriangb in #6562
  • Fix typing of model_validator by @adriangb in #6514
  • Touch up Decimal validator by @adriangb in #6327
  • Fix various docstrings using fixed pytest-examples by @dmontagu in #6607
  • Handle function validators in a discriminated union by @dmontagu in #6570
  • Review json_schema.md by @tpdorsey in #6608
  • Make validate_call work on basemodel methods by @dmontagu in #6569
  • add test for big int json serde by @davidhewitt in #6614
  • Fix pydantic dataclass problem with dataclasses.field default_factory by @hramezani in #6616
  • Fixed mypy type inference for TypeAdapter by @zakstucke in #6617
  • Make it work to use None as a generic parameter by @dmontagu in #6609
  • Make it work to use $ref as an alias by @dmontagu in #6568
  • add note to migration guide about changes to AnyUrl etc by @davidhewitt in #6618
  • 🐛 Support defining json_schema_extra on RootModel using Field by @lig in #6622
  • Update pre-commit to prevent commits to main branch on accident by @dmontagu in #6636
  • Fix PDM CI for python 3.7 on MacOS/windows by @dmontagu in #6627
  • Produce more accurate signatures for pydantic dataclasses by @dmontagu in #6633
  • Updates to Url types for Pydantic V2 by @tpdorsey in #6638
  • Fix list markdown in transform docstring by @StefanBRas in #6649
  • simplify slots_dataclass construction to appease mypy by @davidhewitt in #6639
  • Update TypedDict schema generation docstring by @adriangb in #6651
  • Detect and lint-error for prints by @dmontagu in #6655
  • Add xfailing test for pydantic-core PR 766 by @dmontagu in #6641
  • Ignore unrecognized fields from dataclasses metadata by @dmontagu in #6634
  • Make non-existent class getattr a mypy error by @dmontagu in #6658
  • Update pydantic-core to 2.3.0 by @hramezani in #6648
  • Use OrderedDict from typing_extensions by @dmontagu in #6664
  • Fix typehint for JSON schema extra callable by @dmontagu in #6659

v2.0.2 (2023-07-05)

GitHub release

  • Fix bug where round-trip pickling/unpickling a RootModel would change the value of __dict__, #6457 by @dmontagu
  • Allow single-item discriminated unions, #6405 by @dmontagu
  • Fix issue with union parsing of enums, #6440 by @dmontagu
  • Docs: Fixed constr documentation, renamed old regex to new pattern, #6452 by @miili
  • Change GenerateJsonSchema.generate_definitions signature, #6436 by @dmontagu

See the full changelog here

v2.0.1 (2023-07-04)

GitHub release

First patch release of Pydantic V2

  • Extra fields added via setattr (i.e. m.some_extra_field = 'extra_value') are added to .model_extra if model_config extra='allowed'. Fixed #6333, #6365 by @aaraney
  • Automatically unpack JSON schema '$ref' for custom types, #6343 by @adriangb
  • Fix tagged unions multiple processing in submodels, #6340 by @suharnikov

See the full changelog here

v2.0 (2023-06-30)

GitHub release

Pydantic V2 is here! 🎉

See this post for more details.

v2.0b3 (2023-06-16)

Third beta pre-release of Pydantic V2

See the full changelog here

v2.0b2 (2023-06-03)

Add from_attributes runtime flag to TypeAdapter.validate_python and BaseModel.model_validate.

See the full changelog here

v2.0b1 (2023-06-01)

First beta pre-release of Pydantic V2

See the full changelog here

v2.0a4 (2023-05-05)

Fourth pre-release of Pydantic V2

See the full changelog here

v2.0a3 (2023-04-20)

Third pre-release of Pydantic V2

See the full changelog here

v2.0a2 (2023-04-12)

Second pre-release of Pydantic V2

See the full changelog here

v2.0a1 (2023-04-03)

First pre-release of Pydantic V2!

See this post for more details.

v1.10.19 (2024-11-06)

  • Add warning when v2 model is nested in v1 model by @sydney-runkle in pydantic#10432
  • Fix deprecation warning in V1 isinstance check by @alicederyn in pydantic#10645

v1.10.18 (2024-08-22)

  • Eval type fix in V1 by @sydney-runkle in pydantic#9751
  • Add to_lower_camel to __all__ in utils.py by @sydney-runkle (direct commit)
  • Fix mypy v1 plugin for mypy 1.11 release by @flaeppe in pydantic#10139
  • Fix discriminator key used when discriminator has alias and .schema(by_alias=False) by @exs-dwoodward in pydantic#10146

v1.10.17 (2024-06-20)

  • Advertise Python 3.12 for 1.10.x! Part Deux by @vfazio in pydantic#9644
  • Mirrored modules in v1 namespace to fix typing and object resolution in python>3.11 by @exs-dwoodward in pydantic#9660
  • setup: remove upper bound from python_requires by @vfazio in pydantic#9685

v1.10.16 (2024-06-11)

  • Specify recursive_guard as kwarg in FutureRef._evaluate by @vfazio in pydantic#9612
  • Fix mypy v1 plugin for upcoming mypy release by @ cdce8p in pydantic#9586
  • Import modules/objects directly from v1 namespace by @exs-dwoodward in pydantic#9162

v1.10.15 (2024-04-03)

  • Add pydantic.v1 namespace to Pydantic v1 by @exs-dmiketa in pydantic#9042
  • Relax version of typing-extensions for V1 by @SonOfLilit in pydantic#8819
  • patch fix for mypy by @sydney-runkle in pydantic#8765

v1.10.14 (2024-01-19)

  • Update install.md by @dmontagu in #7690
  • Fix ci to only deploy docs on release by @sydney-runkle in #7740
  • Ubuntu fixes for V1 by @sydney-runkle in #8540 and #8587
  • Fix cached_property handling in dataclasses when copied by @rdbisme in #8407

v1.10.13 (2023-09-27)

  • Fix: Add max length check to pydantic.validate_email, #7673 by @hramezani
  • Docs: Fix pip commands to install v1, #6930 by @chbndrhnns

v1.10.12 (2023-07-24)

  • Fixes the maxlen property being dropped on deque validation. Happened only if the deque item has been typed. Changes the _validate_sequence_like func, #6581 by @maciekglowka

v1.10.11 (2023-07-04)

  • Importing create_model in tools.py through relative path instead of absolute path - so that it doesn't import V2 code when copied over to V2 branch, #6361 by @SharathHuddar

v1.10.10 (2023-06-30)

  • Add Pydantic Json field support to settings management, #6250 by @hramezani
  • Fixed literal validator errors for unhashable values, #6188 by @markus1978
  • Fixed bug with generics receiving forward refs, #6130 by @mark-todd
  • Update install method of FastAPI for internal tests in CI, #6117 by @Kludex

v1.10.9 (2023-06-07)

  • Fix trailing zeros not ignored in Decimal validation, #5968 by @hramezani
  • Fix mypy plugin for v1.4.0, #5928 by @cdce8p
  • Add future and past date hypothesis strategies, #5850 by @bschoenmaeckers
  • Discourage usage of Cython 3 with Pydantic 1.x, #5845 by @lig

v1.10.8 (2023-05-23)

  • Fix a bug in Literal usage with typing-extension==4.6.0, #5826 by @hramezani
  • This solves the (closed) issue #3849 where aliased fields that use discriminated union fail to validate when the data contains the non-aliased field name, #5736 by @benwah
  • Update email-validator dependency to >=2.0.0post2, #5627 by @adriangb
  • update AnyClassMethod for changes in python/typeshed#9771, #5505 by @ITProKyle

v1.10.7 (2023-03-22)

  • Fix creating schema from model using ConstrainedStr with regex as dict key, #5223 by @matejetz
  • Address bug in mypy plugin caused by explicit_package_bases=True, #5191 by @dmontagu
  • Add implicit defaults in the mypy plugin for Field with no default argument, #5190 by @dmontagu
  • Fix schema generated for Enum values used as Literals in discriminated unions, #5188 by @javibookline
  • Fix mypy failures caused by the pydantic mypy plugin when users define from_orm in their own classes, #5187 by @dmontagu
  • Fix InitVar usage with pydantic dataclasses, mypy version 1.1.1 and the custom mypy plugin, #5162 by @cdce8p

v1.10.6 (2023-03-08)

  • Implement logic to support creating validators from non standard callables by using defaults to identify them and unwrapping functools.partial and functools.partialmethod when checking the signature, #5126 by @JensHeinrich
  • Fix mypy plugin for v1.1.1, and fix dataclass_transform decorator for pydantic dataclasses, #5111 by @cdce8p
  • Raise ValidationError, not ConfigError, when a discriminator value is unhashable, #4773 by @kurtmckee

v1.10.5 (2023-02-15)

  • Fix broken parametrized bases handling with GenericModels with complex sets of models, #5052 by @MarkusSintonen
  • Invalidate mypy cache if plugin config changes, #5007 by @cdce8p
  • Fix RecursionError when deep-copying dataclass types wrapped by pydantic, #4949 by @mbillingr
  • Fix X | Y union syntax breaking GenericModel, #4146 by @thenx
  • Switch coverage badge to show coverage for this branch/release, #5060 by @samuelcolvin

v1.10.4 (2022-12-30)

  • Change dependency to typing-extensions>=4.2.0, #4885 by @samuelcolvin

v1.10.3 (2022-12-29)

NOTE: v1.10.3 was "yanked" from PyPI due to #4885 which is fixed in v1.10.4

  • fix parsing of custom root models, #4883 by @gou177
  • fix: use dataclass proxy for frozen or empty dataclasses, #4878 by @PrettyWood
  • Fix schema and schema_json on models where a model instance is a one of default values, #4781 by @Bobronium
  • Add Jina AI to sponsors on docs index page, #4767 by @samuelcolvin
  • fix: support assignment on DataclassProxy, #4695 by @PrettyWood
  • Add postgresql+psycopg as allowed scheme for PostgreDsn to make it usable with SQLAlchemy 2, #4689 by @morian
  • Allow dict schemas to have both patternProperties and additionalProperties, #4641 by @jparise
  • Fixes error passing None for optional lists with unique_items, #4568 by @mfulgo
  • Fix GenericModel with Callable param raising a TypeError, #4551 by @mfulgo
  • Fix field regex with StrictStr type annotation, #4538 by @sisp
  • Correct dataclass_transform keyword argument name from field_descriptors to field_specifiers, #4500 by @samuelcolvin
  • fix: avoid multiple calls of __post_init__ when dataclasses are inherited, #4487 by @PrettyWood
  • Reduce the size of binary wheels, #2276 by @samuelcolvin

v1.10.2 (2022-09-05)

  • Revert Change: Revert percent encoding of URL parts which was originally added in #4224, #4470 by @samuelcolvin
  • Prevent long (length > 4_300) strings/bytes as input to int fields, see python/cpython#95778 and CVE-2020-10735, #1477 by @samuelcolvin
  • fix: dataclass wrapper was not always called, #4477 by @PrettyWood
  • Use tomllib on Python 3.11 when parsing mypy configuration, #4476 by @hauntsaninja
  • Basic fix of GenericModel cache to detect order of arguments in Union models, #4474 by @sveinugu
  • Fix mypy plugin when using bare types like list and dict as default_factory, #4457 by @samuelcolvin

v1.10.1 (2022-08-31)

  • Add __hash__ method to pydancic.color.Color class, #4454 by @czaki

v1.10.0 (2022-08-30)

  • Refactor the whole pydantic dataclass decorator to really act like its standard lib equivalent. It hence keeps __eq__, __hash__, ... and makes comparison with its non-validated version possible. It also fixes usage of frozen dataclasses in fields and usage of default_factory in nested dataclasses. The support of Config.extra has been added. Finally, config customization directly via a dict is now possible, #2557 by @PrettyWood

    BREAKING CHANGES:
    • The compiled boolean (whether pydantic is compiled with cython) has been moved from main.py to version.py
    • Now that Config.extra is supported, dataclass ignores by default extra arguments (like BaseModel)
  • Fix PEP487 __set_name__ protocol in BaseModel for PrivateAttrs, #4407 by @tlambert03
  • Allow for custom parsing of environment variables via parse_env_var in Config, #4406 by @acmiyaguchi
  • Rename master to main, #4405 by @hramezani
  • Fix StrictStr does not raise ValidationError when max_length is present in Field, #4388 by @hramezani
  • Make SecretStr and SecretBytes hashable, #4387 by @chbndrhnns
  • Fix StrictBytes does not raise ValidationError when max_length is present in Field, #4380 by @JeanArhancet
  • Add support for bare type, #4375 by @hramezani
  • Support Python 3.11, including binaries for 3.11 in PyPI, #4374 by @samuelcolvin
  • Add support for re.Pattern, #4366 by @hramezani
  • Fix __post_init_post_parse__ is incorrectly passed keyword arguments when no __post_init__ is defined, #4361 by @hramezani
  • Fix implicitly importing ForwardRef and Callable from pydantic.typing instead of typing and also expose MappingIntStrAny, #4358 by @aminalaee
  • remove Any types from the dataclass decorator so it can be used with the disallow_any_expr mypy option, #4356 by @DetachHead
  • moved repo to pydantic/pydantic, #4348 by @yezz123
  • fix "extra fields not permitted" error when dataclass with Extra.forbid is validated multiple times, #4343 by @detachhead
  • Add Python 3.9 and 3.10 examples to docs, #4339 by @Bobronium
  • Discriminated union models now use oneOf instead of anyOf when generating OpenAPI schema definitions, #4335 by @MaxwellPayne
  • Allow type checkers to infer inner type of Json type. Json[list[str]] will be now inferred as list[str], Json[Any] should be used instead of plain Json. Runtime behaviour is not changed, #4332 by @Bobronium
  • Allow empty string aliases by using a alias is not None check, rather than bool(alias), #4253 by @sergeytsaplin
  • Update ForwardRefs in Field.outer_type_, #4249 by @JacobHayes
  • The use of __dataclass_transform__ has been replaced by typing_extensions.dataclass_transform, which is the preferred way to mark pydantic models as a dataclass under PEP 681, #4241 by @multimeric
  • Use parent model's Config when validating nested NamedTuple fields, #4219 by @synek
  • Update BaseModel.construct to work with aliased Fields, #4192 by @kylebamos
  • Catch certain raised errors in smart_deepcopy and revert to deepcopy if so, #4184 by @coneybeare
  • Add Config.anystr_upper and to_upper kwarg to constr and conbytes, #4165 by @satheler
  • Fix JSON schema for set and frozenset when they include default values, #4155 by @aminalaee
  • Teach the mypy plugin that methods decorated by @validator are classmethods, #4102 by @DMRobertson
  • Improve mypy plugin's ability to detect required fields, #4086 by @richardxia
  • Support fields of type Type[] in schema, #4051 by @aminalaee
  • Add default value in JSON Schema when const=True, #4031 by @aminalaee
  • Adds reserved word check to signature generation logic, #4011 by @strue36
  • Fix Json strategy failure for the complex nested field, #4005 by @sergiosim
  • Add JSON-compatible float constraint allow_inf_nan, #3994 by @tiangolo
  • Remove undefined behaviour when env_prefix had characters in common with env_nested_delimiter, #3975 by @arsenron
  • Support generics model with create_model, #3945 by @hot123s
  • allow submodels to overwrite extra field info, #3934 by @PrettyWood
  • Document and test structural pattern matching (PEP 636) on BaseModel, #3920 by @irgolic
  • Fix incorrect deserialization of python timedelta object to ISO 8601 for negative time deltas. Minus was serialized in incorrect place ("P-1DT23H59M59.888735S" instead of correct "-P1DT23H59M59.888735S"), #3899 by @07pepa
  • Fix validation of discriminated union fields with an alias when passing a model instance, #3846 by @chornsby
  • Add a CockroachDsn type to validate CockroachDB connection strings. The type supports the following schemes: cockroachdb, cockroachdb+psycopg2 and cockroachdb+asyncpg, #3839 by @blubber
  • Fix MyPy plugin to not override pre-existing __init__ method in models, #3824 by @patrick91
  • Fix mypy version checking, #3783 by @KotlinIsland
  • support overwriting dunder attributes of BaseModel instances, #3777 by @PrettyWood
  • Added ConstrainedDate and condate, #3740 by @hottwaj
  • Support kw_only in dataclasses, #3670 by @detachhead
  • Add comparison method for Color class, #3646 by @aminalaee
  • Drop support for python3.6, associated cleanup, #3605 by @samuelcolvin
  • created new function to_lower_camel() for "non pascal case" camel case, #3463 by @schlerp
  • Add checks to default and default_factory arguments in Mypy plugin, #3430 by @klaa97
  • fix mangling of inspect.signature for BaseModel, #3413 by @fix-inspect-signature
  • Adds the SecretField abstract class so that all the current and future secret fields like SecretStr and SecretBytes will derive from it, #3409 by @expobrain
  • Support multi hosts validation in PostgresDsn, #3337 by @rglsk
  • Fix parsing of very small numeric timedelta values, #3315 by @samuelcolvin
  • Update SecretsSettingsSource to respect config.case_sensitive, #3273 by @JeanArhancet
  • Add MongoDB network data source name (DSN) schema, #3229 by @snosratiershad
  • Add support for multiple dotenv files, #3222 by @rekyungmin
  • Raise an explicit ConfigError when multiple fields are incorrectly set for a single validator, #3215 by @SunsetOrange
  • Allow ellipsis on Fields inside Annotated for TypedDicts required, #3133 by @ezegomez
  • Catch overflow errors in int_validator, #3112 by @ojii
  • Adds a __rich_repr__ method to Representation class which enables pretty printing with Rich, #3099 by @willmcgugan
  • Add percent encoding in AnyUrl and descendent types, #3061 by @FaresAhmedb
  • validate_arguments decorator now supports alias, #3019 by @MAD-py
  • Avoid __dict__ and __weakref__ attributes in AnyUrl and IP address fields, #2890 by @nuno-andre
  • Add ability to use Final in a field type annotation, #2766 by @uriyyo
  • Update requirement to typing_extensions>=4.1.0 to guarantee dataclass_transform is available, #4424 by @commonism
  • Add Explosion and AWS to main sponsors, #4413 by @samuelcolvin
  • Update documentation for copy_on_model_validation to reflect recent changes, #4369 by @samuelcolvin
  • Runtime warning if __slots__ is passed to create_model, __slots__ is then ignored, #4432 by @samuelcolvin
  • Add type hints to BaseSettings.Config to avoid mypy errors, also correct mypy version compatibility notice in docs, #4450 by @samuelcolvin

v1.10.0b1 (2022-08-24)

Pre-release, see the GitHub release for details.

v1.10.0a2 (2022-08-24)

Pre-release, see the GitHub release for details.

v1.10.0a1 (2022-08-22)

Pre-release, see the GitHub release for details.

v1.9.2 (2022-08-11)

Revert Breaking Change: v1.9.1 introduced a breaking change where model fields were deep copied by default, this release reverts the default behaviour to match v1.9.0 and before, while also allow deep-copy behaviour via copy_on_model_validation = 'deep'. See #4092 for more information.

  • Allow for shallow copies of model fields, Config.copy_on_model_validation is now a str which must be 'none', 'deep', or 'shallow' corresponding to not copying, deep copy & shallow copy; default 'shallow', #4093 by @timkpaine

v1.9.1 (2022-05-19)

Thank you to pydantic's sponsors: @tiangolo, @stellargraph, @JonasKs, @grillazz, @Mazyod, @kevinalh, @chdsbd, @povilasb, @povilasb, @jina-ai, @mainframeindustries, @robusta-dev, @SendCloud, @rszamszur, @jodal, @hardbyte, @corleyma, @daddycocoaman, @Rehket, @jokull, @reillysiemens, @westonsteimel, @primer-io, @koxudaxi, @browniebroke, @stradivari96, @adriangb, @kamalgill, @jqueguiner, @dev-zero, @datarootsio, @RedCarpetUp for their kind support.

  • Limit the size of generics._generic_types_cache and generics._assigned_parameters to avoid unlimited increase in memory usage, #4083 by @samuelcolvin
  • Add Jupyverse and FPS as Jupyter projects using pydantic, #4082 by @davidbrochart
  • Speedup __isinstancecheck__ on pydantic models when the type is not a model, may also avoid memory "leaks", #4081 by @samuelcolvin
  • Fix in-place modification of FieldInfo that caused problems with PEP 593 type aliases, #4067 by @adriangb
  • Add support for autocomplete in VS Code via __dataclass_transform__ when using pydantic.dataclasses.dataclass, #4006 by @giuliano-oliveira
  • Remove benchmarks from codebase and docs, #3973 by @samuelcolvin
  • Typing checking with pyright in CI, improve docs on vscode/pylance/pyright, #3972 by @samuelcolvin
  • Fix nested Python dataclass schema regression, #3819 by @himbeles
  • Update documentation about lazy evaluation of sources for Settings, #3806 by @garyd203
  • Prevent subclasses of bytes being converted to bytes, #3706 by @samuelcolvin
  • Fixed "error checking inheritance of" when using PEP585 and PEP604 type hints, #3681 by @aleksul
  • Allow self referencing ClassVars in models, #3679 by @samuelcolvin
  • Breaking Change, see #4106: Fix issue with self-referencing dataclass, #3675 by @uriyyo
  • Include non-standard port numbers in rendered URLs, #3652 by @dolfinus
  • Config.copy_on_model_validation does a deep copy and not a shallow one, #3641 by @PrettyWood
  • fix: clarify that discriminated unions do not support singletons, #3636 by @tommilligan
  • Add read_text(encoding='utf-8') for setup.py, #3625 by @hswong3i
  • Fix JSON Schema generation for Discriminated Unions within lists, #3608 by @samuelcolvin

v1.9.0 (2021-12-31)

Thank you to pydantic's sponsors: @sthagen, @timdrijvers, @toinbis, @koxudaxi, @ginomempin, @primer-io, @and-semakin, @westonsteimel, @reillysiemens, @es3n1n, @jokull, @JonasKs, @Rehket, @corleyma, @daddycocoaman, @hardbyte, @datarootsio, @jodal, @aminalaee, @rafsaf, @jqueguiner, @chdsbd, @kevinalh, @Mazyod, @grillazz, @JonasKs, @simw, @leynier, @xfenix for their kind support.

Highlights

v1.9.0 (2021-12-31) Changes

  • Apply update_forward_refs to Config.json_encodes prevent name clashes in types defined via strings, #3583 by @samuelcolvin
  • Extend pydantic's mypy plugin to support mypy versions 0.910, 0.920, 0.921 & 0.930, #3573 & #3594 by @PrettyWood, @christianbundy, @samuelcolvin

v1.9.0a2 (2021-12-24) Changes

  • support generic models with discriminated union, #3551 by @PrettyWood
  • keep old behaviour of json() by default, #3542 by @PrettyWood
  • Removed typing-only __root__ attribute from BaseModel, #3540 by @layday
  • Build Python 3.10 wheels, #3539 by @mbachry
  • Fix display of extra fields with model __repr__, #3234 by @cocolman
  • models copied via Config.copy_on_model_validation always have all fields, #3201 by @PrettyWood
  • nested ORM from nested dictionaries, #3182 by @PrettyWood
  • fix link to discriminated union section by @PrettyWood

v1.9.0a1 (2021-12-18) Changes

  • Add support for Decimal-specific validation configurations in Field(), additionally to using condecimal(), to allow better support from editors and tooling, #3507 by @tiangolo
  • Add arm64 binaries suitable for MacOS with an M1 CPU to PyPI, #3498 by @samuelcolvin
  • Fix issue where None was considered invalid when using a Union type containing Any or object, #3444 by @tharradine
  • When generating field schema, pass optional field argument (of type pydantic.fields.ModelField) to __modify_schema__() if present, #3434 by @jasujm
  • Fix issue when pydantic fail to parse typing.ClassVar string type annotation, #3401 by @uriyyo
  • Mention Python >= 3.9.2 as an alternative to typing_extensions.TypedDict, #3374 by @BvB93
  • Changed the validator method name in the Custom Errors example to more accurately describe what the validator is doing; changed from name_must_contain_space to value_must_equal_bar, #3327 by @michaelrios28
  • Add AmqpDsn class, #3254 by @kludex
  • Always use Enum value as default in generated JSON schema, #3190 by @joaommartins
  • Add support for Mypy 0.920, #3175 by @christianbundy
  • validate_arguments now supports extra customization (used to always be Extra.forbid), #3161 by @PrettyWood
  • Complex types can be set by nested environment variables, #3159 by @Air-Mark
  • Fix mypy plugin to collect fields based on pydantic.utils.is_valid_field so that it ignores untyped private variables, #3146 by @hi-ogawa
  • fix validate_arguments issue with Config.validate_all, #3135 by @PrettyWood
  • avoid dict coercion when using dict subclasses as field type, #3122 by @PrettyWood
  • add support for object type, #3062 by @PrettyWood
  • Updates pydantic dataclasses to keep _special properties on parent classes, #3043 by @zulrang
  • Add a TypedDict class for error objects, #3038 by @matthewhughes934
  • Fix support for using a subclass of an annotation as a default, #3018 by @JacobHayes
  • make create_model_from_typeddict mypy compliant, #3008 by @PrettyWood
  • Make multiple inheritance work when using PrivateAttr, #2989 by @hmvp
  • Parse environment variables as JSON, if they have a Union type with a complex subfield, #2936 by @cbartz
  • Prevent StrictStr permitting Enum values where the enum inherits from str, #2929 by @samuelcolvin
  • Make SecretsSettingsSource parse values being assigned to fields of complex types when sourced from a secrets file, just as when sourced from environment variables, #2917 by @davidmreed
  • add a dark mode to pydantic documentation, #2913 by @gbdlin
  • Make pydantic-mypy plugin compatible with pyproject.toml configuration, consistent with mypy changes. See the doc for more information, #2908 by @jrwalk
  • add Python 3.10 support, #2885 by @PrettyWood
  • Correctly parse generic models with Json[T], #2860 by @geekingfrog
  • Update contrib docs re: Python version to use for building docs, #2856 by @paxcodes
  • Clarify documentation about pydantic's support for custom validation and strict type checking, despite pydantic being primarily a parsing library, #2855 by @paxcodes
  • Fix schema generation for Deque fields, #2810 by @sergejkozin
  • fix an edge case when mixing constraints and Literal, #2794 by @PrettyWood
  • Fix postponed annotation resolution for NamedTuple and TypedDict when they're used directly as the type of fields within Pydantic models, #2760 by @jameysharp
  • Fix bug when mypy plugin fails on construct method call for BaseSettings derived classes, #2753 by @uriyyo
  • Add function overloading for a pydantic.create_model function, #2748 by @uriyyo
  • Fix mypy plugin issue with self field declaration, #2743 by @uriyyo
  • The colon at the end of the line "The fields which were supplied when user was initialised:" suggests that the code following it is related. Changed it to a period, #2733 by @krisaoe
  • Renamed variable schema to schema_ to avoid shadowing of global variable name, #2724 by @shahriyarr
  • Add support for autocomplete in VS Code via __dataclass_transform__, #2721 by @tiangolo
  • add missing type annotations in BaseConfig and handle max_length = 0, #2719 by @PrettyWood
  • Change orm_mode checking to allow recursive ORM mode parsing with dicts, #2718 by @nuno-andre
  • Add episode 313 of the Talk Python To Me podcast, where Michael Kennedy and Samuel Colvin discuss Pydantic, to the docs, #2712 by @RatulMaharaj
  • fix JSON schema generation when a field is of type NamedTuple and has a default value, #2707 by @PrettyWood
  • Enum fields now properly support extra kwargs in schema generation, #2697 by @sammchardy
  • Breaking Change, see #3780: Make serialization of referenced pydantic models possible, #2650 by @PrettyWood
  • Add uniqueItems option to ConstrainedList, #2618 by @nuno-andre
  • Try to evaluate forward refs automatically at model creation, #2588 by @uriyyo
  • Switch docs preview and coverage display to use smokeshow, #2580 by @samuelcolvin
  • Add __version__ attribute to pydantic module, #2572 by @paxcodes
  • Add postgresql+asyncpg, postgresql+pg8000, postgresql+psycopg2, postgresql+psycopg2cffi, postgresql+py-postgresql and postgresql+pygresql schemes for PostgresDsn, #2567 by @postgres-asyncpg
  • Enable the Hypothesis plugin to generate a constrained decimal when the decimal_places argument is specified, #2524 by @cwe5590
  • Allow collections.abc.Callable to be used as type in Python 3.9, #2519 by @daviskirk
  • Documentation update how to custom compile pydantic when using pip install, small change in setup.py to allow for custom CFLAGS when compiling, #2517 by @peterroelants
  • remove side effect of default_factory to run it only once even if Config.validate_all is set, #2515 by @PrettyWood
  • Add lookahead to ip regexes for AnyUrl hosts. This allows urls with DNS labels looking like IPs to validate as they are perfectly valid host names, #2512 by @sbv-csis
  • Set minItems and maxItems in generated JSON schema for fixed-length tuples, #2497 by @PrettyWood
  • Add strict argument to conbytes, #2489 by @koxudaxi
  • Support user defined generic field types in generic models, #2465 by @daviskirk
  • Add an example and a short explanation of subclassing GetterDict to docs, #2463 by @nuno-andre
  • add KafkaDsn type, HttpUrl now has default port 80 for http and 443 for https, #2447 by @MihanixA
  • Add PastDate and FutureDate types, #2425 by @Kludex
  • Support generating schema for Generic fields with subtypes, #2375 by @maximberg
  • fix(encoder): serialize NameEmail to str, #2341 by @alecgerona
  • add Config.smart_union to prevent coercion in Union if possible, see the doc for more information, #2092 by @PrettyWood
  • Add ability to use typing.Counter as a model field type, #2060 by @uriyyo
  • Add parameterised subclasses to __bases__ when constructing new parameterised classes, so that A <: B => A[int] <: B[int], #2007 by @diabolo-dan
  • Create FileUrl type that allows URLs that conform to RFC 8089. Add host_required parameter, which is True by default (AnyUrl and subclasses), False in RedisDsn, FileUrl, #1983 by @vgerak
  • add confrozenset(), analogous to conset() and conlist(), #1897 by @PrettyWood
  • stop calling parent class root_validator if overridden, #1895 by @PrettyWood
  • Add repr (defaults to True) parameter to Field, to hide it from the default representation of the BaseModel, #1831 by @fnep
  • Accept empty query/fragment URL parts, #1807 by @xavier

v1.8.2 (2021-05-11)

!!! warning A security vulnerability, level "moderate" is fixed in v1.8.2. Please upgrade ASAP. See security advisory CVE-2021-29510

  • Security fix: Fix date and datetime parsing so passing either 'infinity' or float('inf') (or their negative values) does not cause an infinite loop, see security advisory CVE-2021-29510
  • fix schema generation with Enum by generating a valid name, #2575 by @PrettyWood
  • fix JSON schema generation with a Literal of an enum member, #2536 by @PrettyWood
  • Fix bug with configurations declarations that are passed as keyword arguments during class creation, #2532 by @uriyyo
  • Allow passing json_encoders in class kwargs, #2521 by @layday
  • support arbitrary types with custom __eq__, #2483 by @PrettyWood
  • support Annotated in validate_arguments and in generic models with Python 3.9, #2483 by @PrettyWood

v1.8.1 (2021-03-03)

Bug fixes for regressions and new features from v1.8

  • allow elements of Config.field to update elements of a Field, #2461 by @samuelcolvin
  • fix validation with a BaseModel field and a custom root type, #2449 by @PrettyWood
  • expose Pattern encoder to fastapi, #2444 by @PrettyWood
  • enable the Hypothesis plugin to generate a constrained float when the multiple_of argument is specified, #2442 by @tobi-lipede-oodle
  • Avoid RecursionError when using some types like Enum or Literal with generic models, #2436 by @PrettyWood
  • do not overwrite declared __hash__ in subclasses of a model, #2422 by @PrettyWood
  • fix mypy complaints on Path and UUID related custom types, #2418 by @PrettyWood
  • Support properly variable length tuples of compound types, #2416 by @PrettyWood

v1.8 (2021-02-26)

Thank you to pydantic's sponsors: @jorgecarleitao, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @koxudaxi, @timdrijvers, @mkeen, @meadsteve, @ginomempin, @primer-io, @and-semakin, @tomthorogood, @AjitZK, @westonsteimel, @Mazyod, @christippett, @CarlosDomingues, @Kludex, @r-m-n for their kind support.

Highlights

Changes

  • Breaking Change, remove old deprecation aliases from v1, #2415 by @samuelcolvin:
    • remove notes on migrating to v1 in docs
    • remove Schema which was replaced by Field
    • remove Config.case_insensitive which was replaced by Config.case_sensitive (default False)
    • remove Config.allow_population_by_alias which was replaced by Config.allow_population_by_field_name
    • remove model.fields which was replaced by model.__fields__
    • remove model.to_string() which was replaced by str(model)
    • remove model.__values__ which was replaced by model.__dict__
  • Breaking Change: always validate only first sublevel items with each_item. There were indeed some edge cases with some compound types where the validated items were the last sublevel ones, #1933 by @PrettyWood
  • Update docs extensions to fix local syntax highlighting, #2400 by @daviskirk
  • fix: allow utils.lenient_issubclass to handle typing.GenericAlias objects like list[str] in Python >= 3.9, #2399 by @daviskirk
  • Improve field declaration for pydantic dataclass by allowing the usage of pydantic Field or 'metadata' kwarg of dataclasses.field, #2384 by @PrettyWood
  • Making typing-extensions a required dependency, #2368 by @samuelcolvin
  • Make resolve_annotations more lenient, allowing for missing modules, #2363 by @samuelcolvin
  • Allow configuring models through class kwargs, #2356 by @Bobronium
  • Prevent Mapping subclasses from always being coerced to dict, #2325 by @ofek
  • fix: allow None for type Optional[conset / conlist], #2320 by @PrettyWood
  • Support empty tuple type, #2318 by @PrettyWood
  • fix: python_requires metadata to require >=3.6.1, #2306 by @hukkinj1
  • Properly encode Decimal with, or without any decimal places, #2293 by @hultner
  • fix: update __fields_set__ in BaseModel.copy(update=…), #2290 by @PrettyWood
  • fix: keep order of fields with BaseModel.construct(), #2281 by @PrettyWood
  • Support generating schema for Generic fields, #2262 by @maximberg
  • Fix validate_decorator so **kwargs doesn't exclude values when the keyword has the same name as the *args or **kwargs names, #2251 by @cybojenix
  • Prevent overriding positional arguments with keyword arguments in validate_arguments, as per behaviour with native functions, #2249 by @cybojenix
  • add documentation for con* type functions, #2242 by @tayoogunbiyi
  • Support custom root type (aka __root__) when using parse_obj() with nested models, #2238 by @PrettyWood
  • Support custom root type (aka __root__) with from_orm(), #2237 by @PrettyWood
  • ensure cythonized functions are left untouched when creating models, based on #1944 by @kollmats, #2228 by @samuelcolvin
  • Resolve forward refs for stdlib dataclasses converted into pydantic ones, #2220 by @PrettyWood
  • Add support for NamedTuple and TypedDict types. Those two types are now handled and validated when used inside BaseModel or pydantic dataclass. Two utils are also added create_model_from_namedtuple and create_model_from_typeddict, #2216 by @PrettyWood
  • Do not ignore annotated fields when type is Union[Type[...], ...], #2213 by @PrettyWood
  • Raise a user-friendly TypeError when a root_validator does not return a dict (e.g. None), #2209 by @masalim2
  • Add a FrozenSet[str] type annotation to the allowed_schemes argument on the strict_url field type, #2198 by @Midnighter
  • add allow_mutation constraint to Field, #2195 by @sblack-usu
  • Allow Field with a default_factory to be used as an argument to a function decorated with validate_arguments, #2176 by @thomascobb
  • Allow non-existent secrets directory by only issuing a warning, #2175 by @davidolrik
  • fix URL regex to parse fragment without query string, #2168 by @andrewmwhite
  • fix: ensure to always return one of the values in Literal field type, #2166 by @PrettyWood
  • Support typing.Annotated hints on model fields. A Field may now be set in the type hint with Annotated[..., Field(...); all other annotations are ignored but still visible with get_type_hints(..., include_extras=True), #2147 by @JacobHayes
  • Added StrictBytes type as well as strict=False option to ConstrainedBytes, #2136 by @rlizzo
  • added Config.anystr_lower and to_lower kwarg to constr and conbytes, #2134 by @tayoogunbiyi
  • Support plain typing.Tuple type, #2132 by @PrettyWood
  • Add a bound method validate to functions decorated with validate_arguments to validate parameters without actually calling the function, #2127 by @PrettyWood
  • Add the ability to customize settings sources (add / disable / change priority order), #2107 by @kozlek
  • Fix mypy complaints about most custom pydantic types, #2098 by @PrettyWood
  • Add a Hypothesis plugin for easier property-based testing with Pydantic's custom types - usage details here, #2097 by @Zac-HD
  • add validator for None, NoneType or Literal[None], #2095 by @PrettyWood
  • Handle properly fields of type Callable with a default value, #2094 by @PrettyWood
  • Updated create_model return type annotation to return type which inherits from __base__ argument, #2071 by @uriyyo
  • Add merged json_encoders inheritance, #2064 by @art049
  • allow overwriting ClassVars in sub-models without having to re-annotate them, #2061 by @layday
  • add default encoder for Pattern type, #2045 by @PrettyWood
  • Add NonNegativeInt, NonPositiveInt, NonNegativeFloat, NonPositiveFloat, #1975 by @mdavis-xyz
  • Use % for percentage in string format of colors, #1960 by @EdwardBetts
  • Fixed issue causing KeyError to be raised when building schema from multiple BaseModel with the same names declared in separate classes, #1912 by @JSextonn
  • Add rediss (Redis over SSL) protocol to RedisDsn Allow URLs without user part (e.g., rediss://:pass@localhost), #1911 by @TrDex
  • Add a new frozen boolean parameter to Config (default: False). Setting frozen=True does everything that allow_mutation=False does, and also generates a __hash__() method for the model. This makes instances of the model potentially hashable if all the attributes are hashable, #1880 by @rhuille
  • fix schema generation with multiple Enums having the same name, #1857 by @PrettyWood
  • Added support for 13/19 digits VISA credit cards in PaymentCardNumber type, #1416 by @AlexanderSov
  • fix: prevent RecursionError while using recursive GenericModels, #1370 by @xppt
  • use enum for typing.Literal in JSON schema, #1350 by @PrettyWood
  • Fix: some recursive models did not require update_forward_refs and silently behaved incorrectly, #1201 by @PrettyWood
  • Fix bug where generic models with fields where the typevar is nested in another type a: List[T] are considered to be concrete. This allows these models to be subclassed and composed as expected, #947 by @daviskirk
  • Add Config.copy_on_model_validation flag. When set to False, pydantic will keep models used as fields untouched on validation instead of reconstructing (copying) them, #265 by @PrettyWood

v1.7.4 (2021-05-11)

  • Security fix: Fix date and datetime parsing so passing either 'infinity' or float('inf') (or their negative values) does not cause an infinite loop, See security advisory CVE-2021-29510

v1.7.3 (2020-11-30)

Thank you to pydantic's sponsors: @timdrijvers, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @jorgecarleitao, @koxudaxi, @primer-api, @mkeen, @meadsteve for their kind support.

  • fix: set right default value for required (optional) fields, #2142 by @PrettyWood
  • fix: support underscore_attrs_are_private with generic models, #2138 by @PrettyWood
  • fix: update all modified field values in root_validator when validate_assignment is on, #2116 by @PrettyWood
  • Allow pickling of pydantic.dataclasses.dataclass dynamically created from a built-in dataclasses.dataclass, #2111 by @aimestereo
  • Fix a regression where Enum fields would not propagate keyword arguments to the schema, #2109 by @bm424
  • Ignore __doc__ as private attribute when Config.underscore_attrs_are_private is set, #2090 by @PrettyWood

v1.7.2 (2020-11-01)

  • fix slow GenericModel concrete model creation, allow GenericModel concrete name reusing in module, #2078 by @Bobronium
  • keep the order of the fields when validate_assignment is set, #2073 by @PrettyWood
  • forward all the params of the stdlib dataclass when converted into pydantic dataclass, #2065 by @PrettyWood

v1.7.1 (2020-10-28)

Thank you to pydantic's sponsors: @timdrijvers, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @jorgecarleitao, @koxudaxi, @primer-api, @mkeen for their kind support.

  • fix annotation of validate_arguments when passing configuration as argument, #2055 by @layday
  • Fix mypy assignment error when using PrivateAttr, #2048 by @aphedges
  • fix underscore_attrs_are_private causing TypeError when overriding __init__, #2047 by @samuelcolvin
  • Fixed regression introduced in v1.7 involving exception handling in field validators when validate_assignment=True, #2044 by @johnsabath
  • fix: pydantic dataclass can inherit from stdlib dataclass and Config.arbitrary_types_allowed is supported, #2042 by @PrettyWood

v1.7 (2020-10-26)

Thank you to pydantic's sponsors: @timdrijvers, @BCarley, @chdsbd, @tiangolo, @matin, @linusg, @kevinalh, @jorgecarleitao, @koxudaxi, @primer-api for their kind support.

Highlights

Changes

  • Breaking Change: remove __field_defaults__, add default_factory support with BaseModel.construct. Use .get_default() method on fields in __fields__ attribute instead, #1732 by @PrettyWood
  • Rearrange CI to run linting as a separate job, split install recipes for different tasks, #2020 by @samuelcolvin
  • Allows subclasses of generic models to make some, or all, of the superclass's type parameters concrete, while also defining new type parameters in the subclass, #2005 by @choogeboom
  • Call validator with the correct values parameter type in BaseModel.__setattr__, when validate_assignment = True in model config, #1999 by @me-ransh
  • Force fields.Undefined to be a singleton object, fixing inherited generic model schemas, #1981 by @daviskirk
  • Include tests in source distributions, #1976 by @sbraz
  • Add ability to use min_length/max_length constraints with secret types, #1974 by @uriyyo
  • Also check root_validators when validate_assignment is on, #1971 by @PrettyWood
  • Fix const validators not running when custom validators are present, #1957 by @hmvp
  • add deque to field types, #1935 by @wozniakty
  • add basic support for Python 3.9, #1832 by @PrettyWood
  • Fix typo in the anchor of exporting_models.md#modelcopy and incorrect description, #1821 by @KimMachineGun
  • Added ability for BaseSettings to read "secret files", #1820 by @mdgilene
  • add parse_raw_as utility function, #1812 by @PrettyWood
  • Support home directory relative paths for dotenv files (e.g. ~/.env), #1803 by @PrettyWood
  • Clarify documentation for parse_file to show that the argument should be a file path not a file-like object, #1794 by @mdavis-xyz
  • Fix false positive from mypy plugin when a class nested within a BaseModel is named Model, #1770 by @selimb
  • add basic support of Pattern type in schema generation, #1767 by @PrettyWood
  • Support custom title, description and default in schema of enums, #1748 by @PrettyWood
  • Properly represent Literal Enums when use_enum_values is True, #1747 by @noelevans
  • Allows timezone information to be added to strings to be formatted as time objects. Permitted formats are Z for UTC or an offset for absolute positive or negative time shifts. Or the timezone data can be omitted, #1744 by @noelevans
  • Add stub __init__ with Python 3.6 signature for ForwardRef, #1738 by @sirtelemak
  • Fix behaviour with forward refs and optional fields in nested models, #1736 by @PrettyWood
  • add Enum and IntEnum as valid types for fields, #1735 by @PrettyWood
  • Change default value of __module__ argument of create_model from None to 'pydantic.main'. Set reference of created concrete model to it's module to allow pickling (not applied to models created in functions), #1686 by @Bobronium
  • Add private attributes support, #1679 by @Bobronium
  • add config to @validate_arguments, #1663 by @samuelcolvin
  • Allow descendant Settings models to override env variable names for the fields defined in parent Settings models with env in their Config. Previously only env_prefix configuration option was applicable, #1561 by @ojomio
  • Support ref_template when creating schema $refs, #1479 by @kilo59
  • Add a __call__ stub to PyObject so that mypy will know that it is callable, #1352 by @brianmaissy
  • pydantic.dataclasses.dataclass decorator now supports built-in dataclasses.dataclass. It is hence possible to convert an existing dataclass easily to add Pydantic validation. Moreover nested dataclasses are also supported, #744 by @PrettyWood

v1.6.2 (2021-05-11)

  • Security fix: Fix date and datetime parsing so passing either 'infinity' or float('inf') (or their negative values) does not cause an infinite loop, See security advisory CVE-2021-29510

v1.6.1 (2020-07-15)

  • fix validation and parsing of nested models with default_factory, #1710 by @PrettyWood

v1.6 (2020-07-11)

Thank you to pydantic's sponsors: @matin, @tiangolo, @chdsbd, @jorgecarleitao, and 1 anonymous sponsor for their kind support.

  • Modify validators for conlist and conset to not have always=True, #1682 by @samuelcolvin
  • add port check to AnyUrl (can't exceed 65536) ports are 16 insigned bits: 0 <= port <= 2**16-1 src: rfc793 header format, #1654 by @flapili
  • Document default regex anchoring semantics, #1648 by @yurikhan
  • Use chain.from_iterable in class_validators.py. This is a faster and more idiomatic way of using itertools.chain. Instead of computing all the items in the iterable and storing them in memory, they are computed one-by-one and never stored as a huge list. This can save on both runtime and memory space, #1642 by @cool-RR
  • Add conset(), analogous to conlist(), #1623 by @patrickkwang
  • make Pydantic errors (un)pickable, #1616 by @PrettyWood
  • Allow custom encoding for dotenv files, #1615 by @PrettyWood
  • Ensure SchemaExtraCallable is always defined to get type hints on BaseConfig, #1614 by @PrettyWood
  • Update datetime parser to support negative timestamps, #1600 by @mlbiche
  • Update mypy, remove AnyType alias for Type[Any], #1598 by @samuelcolvin
  • Adjust handling of root validators so that errors are aggregated from all failing root validators, instead of reporting on only the first root validator to fail, #1586 by @beezee
  • Make __modify_schema__ on Enums apply to the enum schema rather than fields that use the enum, #1581 by @therefromhere
  • Fix behavior of __all__ key when used in conjunction with index keys in advanced include/exclude of fields that are sequences, #1579 by @xspirus
  • Subclass validators do not run when referencing a List field defined in a parent class when each_item=True. Added an example to the docs illustrating this, #1566 by @samueldeklund
  • change schema.field_class_to_schema to support frozenset in schema, #1557 by @wangpeibao
  • Call __modify_schema__ only for the field schema, #1552 by @PrettyWood
  • Move the assignment of field.validate_always in fields.py so the always parameter of validators work on inheritance, #1545 by @dcHHH
  • Added support for UUID instantiation through 16 byte strings such as b'\x12\x34\x56\x78' * 4. This was done to support BINARY(16) columns in sqlalchemy, #1541 by @shawnwall
  • Add a test assertion that default_factory can return a singleton, #1523 by @therefromhere
  • Add NameEmail.__eq__ so duplicate NameEmail instances are evaluated as equal, #1514 by @stephen-bunn
  • Add datamodel-code-generator link in pydantic document site, #1500 by @koxudaxi
  • Added a "Discussion of Pydantic" section to the documentation, with a link to "Pydantic Introduction" video by Alexander Hultnér, #1499 by @hultner
  • Avoid some side effects of default_factory by calling it only once if possible and by not setting a default value in the schema, #1491 by @PrettyWood
  • Added docs about dumping dataclasses to JSON, #1487 by @mikegrima
  • Make BaseModel.__signature__ class-only, so getting __signature__ from model instance will raise AttributeError, #1466 by @Bobronium
  • include 'format': 'password' in the schema for secret types, #1424 by @atheuz
  • Modify schema constraints on ConstrainedFloat so that exclusiveMinimum and minimum are not included in the schema if they are equal to -math.inf and exclusiveMaximum and maximum are not included if they are equal to math.inf, #1417 by @vdwees
  • Squash internal __root__ dicts in .dict() (and, by extension, in .json()), #1414 by @patrickkwang
  • Move const validator to post-validators so it validates the parsed value, #1410 by @selimb
  • Fix model validation to handle nested literals, e.g. Literal['foo', Literal['bar']], #1364 by @DBCerigo
  • Remove user_required = True from RedisDsn, neither user nor password are required, #1275 by @samuelcolvin
  • Remove extra allOf from schema for fields with Union and custom Field, #1209 by @mostaphaRoudsari
  • Updates OpenAPI schema generation to output all enums as separate models. Instead of inlining the enum values in the model schema, models now use a $ref property to point to the enum definition, #1173 by @calvinwyoung

v1.5.1 (2020-04-23)

  • Signature generation with extra: allow never uses a field name, #1418 by @prettywood
  • Avoid mutating Field default value, #1412 by @prettywood

v1.5 (2020-04-18)

  • Make includes/excludes arguments for .dict(), ._iter(), ..., immutable, #1404 by @AlexECX
  • Always use a field's real name with includes/excludes in model._iter(), regardless of by_alias, #1397 by @AlexECX
  • Update constr regex example to include start and end lines, #1396 by @lmcnearney
  • Confirm that shallow model.copy() does make a shallow copy of attributes, #1383 by @samuelcolvin
  • Renaming model_name argument of main.create_model() to __model_name to allow using model_name as a field name, #1367 by @kittipatv
  • Replace raising of exception to silent passing for non-Var attributes in mypy plugin, #1345 by @b0g3r
  • Remove typing_extensions dependency for Python 3.8, #1342 by @prettywood
  • Make SecretStr and SecretBytes initialization idempotent, #1330 by @atheuz
  • document making secret types dumpable using the json method, #1328 by @atheuz
  • Move all testing and build to github actions, add windows and macos binaries, thank you @StephenBrown2 for much help, #1326 by @samuelcolvin
  • fix card number length check in PaymentCardNumber, PaymentCardBrand now inherits from str, #1317 by @samuelcolvin
  • Have BaseModel inherit from Representation to make mypy happy when overriding __str__, #1310 by @FuegoFro
  • Allow None as input to all optional list fields, #1307 by @prettywood
  • Add datetime field to default_factory example, #1301 by @StephenBrown2
  • Allow subclasses of known types to be encoded with superclass encoder, #1291 by @StephenBrown2
  • Exclude exported fields from all elements of a list/tuple of submodels/dicts with '__all__', #1286 by @masalim2
  • Add pydantic.color.Color objects as available input for Color fields, #1258 by @leosussan
  • In examples, type nullable fields as Optional, so that these are valid mypy annotations, #1248 by @kokes
  • Make pattern_validator() accept pre-compiled Pattern objects. Fix str_validator() return type to str, #1237 by @adamgreg
  • Document how to manage Generics and inheritance, #1229 by @esadruhn
  • update_forward_refs() method of BaseModel now copies __dict__ of class module instead of modifying it, #1228 by @paul-ilyin
  • Support instance methods and class methods with @validate_arguments, #1222 by @samuelcolvin
  • Add default_factory argument to Field to create a dynamic default value by passing a zero-argument callable, #1210 by @prettywood
  • add support for NewType of List, Optional, etc, #1207 by @Kazy
  • fix mypy signature for root_validator, #1192 by @samuelcolvin
  • Fixed parsing of nested 'custom root type' models, #1190 by @Shados
  • Add validate_arguments function decorator which checks the arguments to a function matches type annotations, #1179 by @samuelcolvin
  • Add __signature__ to models, #1034 by @Bobronium
  • Refactor ._iter() method, 10x speed boost for dict(model), #1017 by @Bobronium

v1.4 (2020-01-24)

  • Breaking Change: alias precedence logic changed so aliases on a field always take priority over an alias from alias_generator to avoid buggy/unexpected behaviour, see here for details, #1178 by @samuelcolvin
  • Add support for unicode and punycode in TLDs, #1182 by @jamescurtin
  • Fix cls argument in validators during assignment, #1172 by @samuelcolvin
  • completing Luhn algorithm for PaymentCardNumber, #1166 by @cuencandres
  • add support for generics that implement __get_validators__ like a custom data type, #1159 by @tiangolo
  • add support for infinite generators with Iterable, #1152 by @tiangolo
  • fix url_regex to accept schemas with +, - and . after the first character, #1142 by @samuelcolvin
  • move version_info() to version.py, suggest its use in issues, #1138 by @samuelcolvin
  • Improve pydantic import time by roughly 50% by deferring some module loading and regex compilation, #1127 by @samuelcolvin
  • Fix EmailStr and NameEmail to accept instances of themselves in cython, #1126 by @koxudaxi
  • Pass model class to the Config.schema_extra callable, #1125 by @therefromhere
  • Fix regex for username and password in URLs, #1115 by @samuelcolvin
  • Add support for nested generic models, #1104 by @dmontagu
  • add __all__ to __init__.py to prevent "implicit reexport" errors from mypy, #1072 by @samuelcolvin
  • Add support for using "dotenv" files with BaseSettings, #1011 by @acnebs

v1.3 (2019-12-21)

  • Change schema and schema_model to handle dataclasses by using their __pydantic_model__ feature, #792 by @aviramha
  • Added option for root_validator to be skipped if values validation fails using keyword skip_on_failure=True, #1049 by @aviramha
  • Allow Config.schema_extra to be a callable so that the generated schema can be post-processed, #1054 by @selimb
  • Update mypy to version 0.750, #1057 by @dmontagu
  • Trick Cython into allowing str subclassing, #1061 by @skewty
  • Prevent type attributes being added to schema unless the attribute __schema_attributes__ is True, #1064 by @samuelcolvin
  • Change BaseModel.parse_file to use Config.json_loads, #1067 by @kierandarcy
  • Fix for optional Json fields, #1073 by @volker48
  • Change the default number of threads used when compiling with cython to one, allow override via the CYTHON_NTHREADS environment variable, #1074 by @samuelcolvin
  • Run FastAPI tests during Pydantic's CI tests, #1075 by @tiangolo
  • My mypy strictness constraints, and associated tweaks to type annotations, #1077 by @samuelcolvin
  • Add __eq__ to SecretStr and SecretBytes to allow "value equals", #1079 by @sbv-trueenergy
  • Fix schema generation for nested None case, #1088 by @lutostag
  • Consistent checks for sequence like objects, #1090 by @samuelcolvin
  • Fix Config inheritance on BaseSettings when used with env_prefix, #1091 by @samuelcolvin
  • Fix for __modify_schema__ when it conflicted with field_class_to_schema*, #1102 by @samuelcolvin
  • docs: Fix explanation of case sensitive environment variable names when populating BaseSettings subclass attributes, #1105 by @tribals
  • Rename django-rest-framework benchmark in documentation, #1119 by @frankie567

v1.2 (2019-11-28)

  • Possible Breaking Change: Add support for required Optional with name: Optional[AnyType] = Field(...) and refactor ModelField creation to preserve required parameter value, #1031 by @tiangolo; see here for details
  • Add benchmarks for cattrs, #513 by @sebastianmika
  • Add exclude_none option to dict() and friends, #587 by @niknetniko
  • Add benchmarks for valideer, #670 by @gsakkis
  • Add parse_obj_as and parse_file_as functions for ad-hoc parsing of data into arbitrary pydantic-compatible types, #934 by @dmontagu
  • Add allow_reuse argument to validators, thus allowing validator reuse, #940 by @dmontagu
  • Add support for mapping types for custom root models, #958 by @dmontagu
  • Mypy plugin support for dataclasses, #966 by @koxudaxi
  • Add support for dataclasses default factory, #968 by @ahirner
  • Add a ByteSize type for converting byte string (1GB) to plain bytes, #977 by @dgasmith
  • Fix mypy complaint about @root_validator(pre=True), #984 by @samuelcolvin
  • Add manylinux binaries for Python 3.8 to pypi, also support manylinux2010, #994 by @samuelcolvin
  • Adds ByteSize conversion to another unit, #995 by @dgasmith
  • Fix __str__ and __repr__ inheritance for models, #1022 by @samuelcolvin
  • add testimonials section to docs, #1025 by @sullivancolin
  • Add support for typing.Literal for Python 3.8, #1026 by @dmontagu

v1.1.1 (2019-11-20)

  • Fix bug where use of complex fields on sub-models could cause fields to be incorrectly configured, #1015 by @samuelcolvin

v1.1 (2019-11-07)

  • Add a mypy plugin for type checking BaseModel.__init__ and more, #722 by @dmontagu
  • Change return type typehint for GenericModel.__class_getitem__ to prevent PyCharm warnings, #936 by @dmontagu
  • Fix usage of Any to allow None, also support TypeVar thus allowing use of un-parameterised collection types e.g. Dict and List, #962 by @samuelcolvin
  • Set FieldInfo on subfields to fix schema generation for complex nested types, #965 by @samuelcolvin

v1.0 (2019-10-23)

  • Breaking Change: deprecate the Model.fields property, use Model.__fields__ instead, #883 by @samuelcolvin
  • Breaking Change: Change the precedence of aliases so child model aliases override parent aliases, including using alias_generator, #904 by @samuelcolvin
  • Breaking change: Rename skip_defaults to exclude_unset, and add ability to exclude actual defaults, #915 by @dmontagu
  • Add **kwargs to pydantic.main.ModelMetaclass.__new__ so __init_subclass__ can take custom parameters on extended BaseModel classes, #867 by @retnikt
  • Fix field of a type that has a default value, #880 by @koxudaxi
  • Use FutureWarning instead of DeprecationWarning when alias instead of env is used for settings models, #881 by @samuelcolvin
  • Fix issue with BaseSettings inheritance and alias getting set to None, #882 by @samuelcolvin
  • Modify __repr__ and __str__ methods to be consistent across all public classes, add __pretty__ to support python-devtools, #884 by @samuelcolvin
  • deprecation warning for case_insensitive on BaseSettings config, #885 by @samuelcolvin
  • For BaseSettings merge environment variables and in-code values recursively, as long as they create a valid object when merged together, to allow splitting init arguments, #888 by @idmitrievsky
  • change secret types example, #890 by @ashears
  • Change the signature of Model.construct() to be more user-friendly, document construct() usage, #898 by @samuelcolvin
  • Add example for the construct() method, #907 by @ashears
  • Improve use of Field constraints on complex types, raise an error if constraints are not enforceable, also support tuples with an ellipsis Tuple[X, ...], Sequence and FrozenSet in schema, #909 by @samuelcolvin
  • update docs for bool missing valid value, #911 by @trim21
  • Better str/repr logic for ModelField, #912 by @samuelcolvin
  • Fix ConstrainedList, update schema generation to reflect min_items and max_items Field() arguments, #917 by @samuelcolvin
  • Allow abstracts sets (eg. dict keys) in the include and exclude arguments of dict(), #921 by @samuelcolvin
  • Fix JSON serialization errors on ValidationError.json() by using pydantic_encoder, #922 by @samuelcolvin
  • Clarify usage of remove_untouched, improve error message for types with no validators, #926 by @retnikt

v1.0b2 (2019-10-07)

  • Mark StrictBool typecheck as bool to allow for default values without mypy errors, #690 by @dmontagu
  • Transfer the documentation build from sphinx to mkdocs, re-write much of the documentation, #856 by @samuelcolvin
  • Add support for custom naming schemes for GenericModel subclasses, #859 by @dmontagu
  • Add if TYPE_CHECKING: to the excluded lines for test coverage, #874 by @dmontagu
  • Rename allow_population_by_alias to allow_population_by_field_name, remove unnecessary warning about it, #875 by @samuelcolvin

v1.0b1 (2019-10-01)

  • Breaking Change: rename Schema to Field, make it a function to placate mypy, #577 by @samuelcolvin
  • Breaking Change: modify parsing behavior for bool, #617 by @dmontagu
  • Breaking Change: get_validators is no longer recognised, use __get_validators__. Config.ignore_extra and Config.allow_extra are no longer recognised, use Config.extra, #720 by @samuelcolvin
  • Breaking Change: modify default config settings for BaseSettings; case_insensitive renamed to case_sensitive, default changed to case_sensitive = False, env_prefix default changed to '' - e.g. no prefix, #721 by @dmontagu
  • Breaking change: Implement root_validator and rename root errors from __obj__ to __root__, #729 by @samuelcolvin
  • Breaking Change: alter the behaviour of dict(model) so that sub-models are nolonger converted to dictionaries, #733 by @samuelcolvin
  • Breaking change: Added initvars support to post_init_post_parse, #748 by @Raphael-C-Almeida
  • Breaking Change: Make BaseModel.json() only serialize the __root__ key for models with custom root, #752 by @dmontagu
  • Breaking Change: complete rewrite of URL parsing logic, #755 by @samuelcolvin
  • Breaking Change: preserve superclass annotations for field-determination when not provided in subclass, #757 by @dmontagu
  • Breaking Change: BaseSettings now uses the special env settings to define which environment variables to read, not aliases, #847 by @samuelcolvin
  • add support for assert statements inside validators, #653 by @abdusco
  • Update documentation to specify the use of pydantic.dataclasses.dataclass and subclassing pydantic.BaseModel, #710 by @maddosaurus
  • Allow custom JSON decoding and encoding via json_loads and json_dumps Config properties, #714 by @samuelcolvin
  • make all annotated fields occur in the order declared, #715 by @dmontagu
  • use pytest to test mypy integration, #735 by @dmontagu
  • add __repr__ method to ErrorWrapper, #738 by @samuelcolvin
  • Added support for FrozenSet members in dataclasses, and a better error when attempting to use types from the typing module that are not supported by Pydantic, #745 by @djpetti
  • add documentation for Pycharm Plugin, #750 by @koxudaxi
  • fix broken examples in the docs, #753 by @dmontagu
  • moving typing related objects into pydantic.typing, #761 by @samuelcolvin
  • Minor performance improvements to ErrorWrapper, ValidationError and datetime parsing, #763 by @samuelcolvin
  • Improvements to datetime/date/time/timedelta types: more descriptive errors, change errors to value_error not type_error, support bytes, #766 by @samuelcolvin
  • fix error messages for Literal types with multiple allowed values, #770 by @dmontagu
  • Improved auto-generated title field in JSON schema by converting underscore to space, #772 by @skewty
  • support mypy --no-implicit-reexport for dataclasses, also respect --no-implicit-reexport in pydantic itself, #783 by @samuelcolvin
  • add the PaymentCardNumber type, #790 by @matin
  • Fix const validations for lists, #794 by @hmvp
  • Set additionalProperties to false in schema for models with extra fields disallowed, #796 by @Code0x58
  • EmailStr validation method now returns local part case-sensitive per RFC 5321, #798 by @henriklindgren
  • Added ability to validate strictness to ConstrainedFloat, ConstrainedInt and ConstrainedStr and added StrictFloat and StrictInt classes, #799 by @DerRidda
  • Improve handling of None and Optional, replace whole with each_item (inverse meaning, default False) on validators, #803 by @samuelcolvin
  • add support for Type[T] type hints, #807 by @timonbimon
  • Performance improvements from removing change_exceptions, change how pydantic error are constructed, #819 by @samuelcolvin
  • Fix the error message arising when a BaseModel-type model field causes a ValidationError during parsing, #820 by @dmontagu
  • allow getter_dict on Config, modify GetterDict to be more like a Mapping object and thus easier to work with, #821 by @samuelcolvin
  • Only check TypeVar param on base GenericModel class, #842 by @zpencerq
  • rename Model._schema_cache -> Model.__schema_cache__, Model._json_encoder -> Model.__json_encoder__, Model._custom_root_type -> Model.__custom_root_type__, #851 by @samuelcolvin

v0.32.2 (2019-08-17)

(Docs are available here)

  • fix __post_init__ usage with dataclass inheritance, fix #739 by @samuelcolvin
  • fix required fields validation on GenericModels classes, #742 by @amitbl
  • fix defining custom Schema on GenericModel fields, #754 by @amitbl

v0.32.1 (2019-08-08)

  • do not validate extra fields when validate_assignment is on, #724 by @YaraslauZhylko

v0.32 (2019-08-06)

  • add model name to ValidationError error message, #676 by @dmontagu
  • breaking change: remove __getattr__ and rename __values__ to __dict__ on BaseModel, deprecation warning on use __values__ attr, attributes access speed increased up to 14 times, #712 by @Bobronium
  • support ForwardRef (without self-referencing annotations) in Python 3.6, #706 by @koxudaxi
  • implement schema_extra in Config sub-class, #663 by @tiangolo

v0.31.1 (2019-07-31)

  • fix json generation for EnumError, #697 by @dmontagu
  • update numerous dependencies

v0.31 (2019-07-24)

  • better support for floating point multiple_of values, #652 by @justindujardin
  • fix schema generation for NewType and Literal, #649 by @dmontagu
  • fix alias_generator and field config conflict, #645 by @gmetzker and #658 by @Bobronium
  • more detailed message for EnumError, #673 by @dmontagu
  • add advanced exclude support for dict, json and copy, #648 by @Bobronium
  • fix bug in GenericModel for models with concrete parameterized fields, #672 by @dmontagu
  • add documentation for Literal type, #651 by @dmontagu
  • add Config.keep_untouched for custom descriptors support, #679 by @Bobronium
  • use inspect.cleandoc internally to get model description, #657 by @tiangolo
  • add Color to schema generation, by @euri10
  • add documentation for Literal type, #651 by @dmontagu

v0.30.1 (2019-07-15)

  • fix so nested classes which inherit and change __init__ are correctly processed while still allowing self as a parameter, #644 by @lnaden and @dgasmith

v0.30 (2019-07-07)

  • enforce single quotes in code, #612 by @samuelcolvin
  • fix infinite recursion with dataclass inheritance and __post_init__, #606 by @Hanaasagi
  • fix default values for GenericModel, #610 by @dmontagu
  • clarify that self-referencing models require Python 3.7+, #616 by @vlcinsky
  • fix truncate for types, #611 by @dmontagu
  • add alias_generator support, #622 by @Bobronium
  • fix unparameterized generic type schema generation, #625 by @dmontagu
  • fix schema generation with multiple/circular references to the same model, #621 by @tiangolo and @wongpat
  • support custom root types, #628 by @koxudaxi
  • support self as a field name in parse_obj, #632 by @samuelcolvin

v0.29 (2019-06-19)

  • support dataclasses.InitVar, #592 by @pfrederiks
  • Updated documentation to elucidate the usage of Union when defining multiple types under an attribute's annotation and showcase how the type-order can affect marshalling of provided values, #594 by @somada141
  • add conlist type, #583 by @hmvp
  • add support for generics, #595 by @dmontagu

v0.28 (2019-06-06)

  • fix support for JSON Schema generation when using models with circular references in Python 3.7, #572 by @tiangolo
  • support __post_init_post_parse__ on dataclasses, #567 by @sevaho
  • allow dumping dataclasses to JSON, #575 by @samuelcolvin and @DanielOberg
  • ORM mode, #562 by @samuelcolvin
  • fix pydantic.compiled on ipython, #573 by @dmontagu and @samuelcolvin
  • add StrictBool type, #579 by @cazgp

v0.27 (2019-05-30)

  • breaking change _pydantic_post_init to execute dataclass' original __post_init__ before validation, #560 by @HeavenVolkoff
  • fix handling of generic types without specified parameters, #550 by @dmontagu
  • breaking change (maybe): this is the first release compiled with cython, see the docs and please submit an issue if you run into problems

v0.27.0a1 (2019-05-26)

  • fix JSON Schema for list, tuple, and set, #540 by @tiangolo
  • compiling with cython, manylinux binaries, some other performance improvements, #548 by @samuelcolvin

v0.26 (2019-05-22)

  • fix to schema generation for IPvAnyAddress, IPvAnyInterface, IPvAnyNetwork #498 by @pilosus
  • fix variable length tuples support, #495 by @pilosus
  • fix return type hint for create_model, #526 by @dmontagu
  • Breaking Change: fix .dict(skip_keys=True) skipping values set via alias (this involves changing validate_model() to always returns Tuple[Dict[str, Any], Set[str], Optional[ValidationError]]), #517 by @sommd
  • fix to schema generation for IPv4Address, IPv6Address, IPv4Interface, IPv6Interface, IPv4Network, IPv6Network #532 by @euri10
  • add Color type, #504 by @pilosus and @samuelcolvin

v0.25 (2019-05-05)

  • Improve documentation on self-referencing models and annotations, #487 by @theenglishway
  • fix .dict() with extra keys, #490 by @JaewonKim
  • support const keyword in Schema, #434 by @Sean1708

v0.24 (2019-04-23)

  • fix handling ForwardRef in sub-types, like Union, #464 by @tiangolo
  • fix secret serialization, #465 by @atheuz
  • Support custom validators for dataclasses, #454 by @primal100
  • fix parse_obj to cope with dict-like objects, #472 by @samuelcolvin
  • fix to schema generation in nested dataclass-based models, #474 by @NoAnyLove
  • fix json for Path, FilePath, and DirectoryPath objects, #473 by @mikegoodspeed

v0.23 (2019-04-04)

  • improve documentation for contributing section, #441 by @pilosus
  • improve README.rst to include essential information about the package, #446 by @pilosus
  • IntEnum support, #444 by @potykion
  • fix PyObject callable value, #409 by @pilosus
  • fix black deprecation warnings after update, #451 by @pilosus
  • fix ForwardRef collection bug, #450 by @tigerwings
  • Support specialized ClassVars, #455 by @tyrylu
  • fix JSON serialization for ipaddress types, #333 by @pilosus
  • add SecretStr and SecretBytes types, #452 by @atheuz

v0.22 (2019-03-29)

  • add IPv{4,6,Any}Network and IPv{4,6,Any}Interface types from ipaddress stdlib, #333 by @pilosus
  • add docs for datetime types, #386 by @pilosus
  • fix to schema generation in dataclass-based models, #408 by @pilosus
  • fix path in nested models, #437 by @kataev
  • add Sequence support, #304 by @pilosus

v0.21.0 (2019-03-15)

  • fix typo in NoneIsNotAllowedError message, #414 by @YaraslauZhylko
  • add IPvAnyAddress, IPv4Address and IPv6Address types, #333 by @pilosus

v0.20.1 (2019-02-26)

  • fix type hints of parse_obj and similar methods, #405 by @erosennin
  • fix submodel validation, #403 by @samuelcolvin
  • correct type hints for ValidationError.json, #406 by @layday

v0.20.0 (2019-02-18)

  • fix tests for Python 3.8, #396 by @samuelcolvin
  • Adds fields to the dir method for autocompletion in interactive sessions, #398 by @dgasmith
  • support ForwardRef (and therefore from __future__ import annotations) with dataclasses, #397 by @samuelcolvin

v0.20.0a1 (2019-02-13)

  • breaking change (maybe): more sophisticated argument parsing for validators, any subset of values, config and field is now permitted, eg. (cls, value, field), however the variadic key word argument ("**kwargs") must be called kwargs, #388 by @samuelcolvin
  • breaking change: Adds skip_defaults argument to BaseModel.dict() to allow skipping of fields that were not explicitly set, signature of Model.construct() changed, #389 by @dgasmith
  • add py.typed marker file for PEP-561 support, #391 by @je-l
  • Fix extra behaviour for multiple inheritance/mix-ins, #394 by @YaraslauZhylko

v0.19.0 (2019-02-04)

  • Support Callable type hint, fix #279 by @proofit404
  • Fix schema for fields with validator decorator, fix #375 by @tiangolo
  • Add multiple_of constraint to ConstrainedDecimal, ConstrainedFloat, ConstrainedInt and their related types condecimal, confloat, and conint #371, thanks @StephenBrown2
  • Deprecated ignore_extra and allow_extra Config fields in favor of extra, #352 by @liiight
  • Add type annotations to all functions, test fully with mypy, #373 by @samuelcolvin
  • fix for 'missing' error with validate_all or validate_always, #381 by @samuelcolvin
  • Change the second/millisecond watershed for date/datetime parsing to 2e10, #385 by @samuelcolvin

v0.18.2 (2019-01-22)

  • Fix to schema generation with Optional fields, fix #361 by @samuelcolvin

v0.18.1 (2019-01-17)

  • add ConstrainedBytes and conbytes types, #315 @Gr1N
  • adding MANIFEST.in to include license in package .tar.gz, #358 by @samuelcolvin

v0.18.0 (2019-01-13)

  • breaking change: don't call validators on keys of dictionaries, #254 by @samuelcolvin
  • Fix validators with always=True when the default is None or the type is optional, also prevent whole validators being called for sub-fields, fix #132 by @samuelcolvin
  • improve documentation for settings priority and allow it to be easily changed, #343 by @samuelcolvin
  • fix ignore_extra=False and allow_population_by_alias=True, fix #257 by @samuelcolvin
  • breaking change: Set BaseConfig attributes min_anystr_length and max_anystr_length to None by default, fix #349 in #350 by @tiangolo
  • add support for postponed annotations, #348 by @samuelcolvin

v0.17.0 (2018-12-27)

  • fix schema for timedelta as number, #325 by @tiangolo
  • prevent validators being called repeatedly after inheritance, #327 by @samuelcolvin
  • prevent duplicate validator check in ipython, fix #312 by @samuelcolvin
  • add "Using Pydantic" section to docs, #323 by @tiangolo & #326 by @samuelcolvin
  • fix schema generation for fields annotated as : dict, : list, : tuple and : set, #330 & #335 by @nkonin
  • add support for constrained strings as dict keys in schema, #332 by @tiangolo
  • support for passing Config class in dataclasses decorator, #276 by @jarekkar (breaking change: this supersedes the validate_assignment argument with config)
  • support for nested dataclasses, #334 by @samuelcolvin
  • better errors when getting an ImportError with PyObject, #309 by @samuelcolvin
  • rename get_validators to __get_validators__, deprecation warning on use of old name, #338 by @samuelcolvin
  • support ClassVar by excluding such attributes from fields, #184 by @samuelcolvin

v0.16.1 (2018-12-10)

  • fix create_model to correctly use the passed __config__, #320 by @hugoduncan

v0.16.0 (2018-12-03)

  • breaking change: refactor schema generation to be compatible with JSON Schema and OpenAPI specs, #308 by @tiangolo
  • add schema to schema module to generate top-level schemas from base models, #308 by @tiangolo
  • add additional fields to Schema class to declare validation for str and numeric values, #311 by @tiangolo
  • rename _schema to schema on fields, #318 by @samuelcolvin
  • add case_insensitive option to BaseSettings Config, #277 by @jasonkuhrt

v0.15.0 (2018-11-18)

  • move codebase to use black, #287 by @samuelcolvin
  • fix alias use in settings, #286 by @jasonkuhrt and @samuelcolvin
  • fix datetime parsing in parse_date, #298 by @samuelcolvin
  • allow dataclass inheritance, fix #293 by @samuelcolvin
  • fix PyObject = None, fix #305 by @samuelcolvin
  • allow Pattern type, fix #303 by @samuelcolvin

v0.14.0 (2018-10-02)

  • dataclasses decorator, #269 by @Gaunt and @samuelcolvin

v0.13.1 (2018-09-21)

  • fix issue where int_validator doesn't cast a bool to an int #264 by @nphyatt
  • add deep copy support for BaseModel.copy() #249, @gangefors

v0.13.0 (2018-08-25)

  • raise an exception if a field's name shadows an existing BaseModel attribute #242
  • add UrlStr and urlstr types #236
  • timedelta json encoding ISO8601 and total seconds, custom json encoders #247, by @cfkanesan and @samuelcolvin
  • allow timedelta objects as values for properties of type timedelta (matches datetime etc. behavior) #247

v0.12.1 (2018-07-31)

  • fix schema generation for fields defined using typing.Any #237

v0.12.0 (2018-07-31)

  • add by_alias argument in .dict() and .json() model methods #205
  • add Json type support #214
  • support tuples #227
  • major improvements and changes to schema #213

v0.11.2 (2018-07-05)

  • add NewType support #115
  • fix list, set & tuple validation #225
  • separate out validate_model method, allow errors to be returned along with valid values #221

v0.11.1 (2018-07-02)

  • support Python 3.7 #216, thanks @layday
  • Allow arbitrary types in model #209, thanks @oldPadavan

v0.11.0 (2018-06-28)

  • make list, tuple and set types stricter #86
  • breaking change: remove msgpack parsing #201
  • add FilePath and DirectoryPath types #10
  • model schema generation #190
  • JSON serialization of models and schemas #133

v0.10.0 (2018-06-11)

  • add Config.allow_population_by_alias #160, thanks @bendemaree
  • breaking change: new errors format #179, thanks @Gr1N
  • breaking change: removed Config.min_number_size and Config.max_number_size #183, thanks @Gr1N
  • breaking change: correct behaviour of lt and gt arguments to conint etc. #188 for the old behaviour use le and ge #194, thanks @jaheba
  • added error context and ability to redefine error message templates using Config.error_msg_templates #183, thanks @Gr1N
  • fix typo in validator exception #150
  • copy defaults to model values, so different models don't share objects #154

v0.9.1 (2018-05-10)

  • allow custom get_field_config on config classes #159
  • add UUID1, UUID3, UUID4 and UUID5 types #167, thanks @Gr1N
  • modify some inconsistent docstrings and annotations #173, thanks @YannLuo
  • fix type annotations for exotic types #171, thanks @Gr1N
  • Reuse type validators in exotic types #171
  • scheduled monthly requirements updates #168
  • add Decimal, ConstrainedDecimal and condecimal types #170, thanks @Gr1N

v0.9.0 (2018-04-28)

  • tweak email-validator import error message #145
  • fix parse error of parse_date() and parse_datetime() when input is 0 #144, thanks @YannLuo
  • add Config.anystr_strip_whitespace and strip_whitespace kwarg to constr, by default values is False #163, thanks @Gr1N
  • add ConstrainedFloat, confloat, PositiveFloat and NegativeFloat types #166, thanks @Gr1N

v0.8.0 (2018-03-25)

  • fix type annotation for inherit_config #139
  • breaking change: check for invalid field names in validators #140
  • validate attributes of parent models #141
  • breaking change: email validation now uses email-validator #142

v0.7.1 (2018-02-07)

  • fix bug with create_model modifying the base class

v0.7.0 (2018-02-06)

  • added compatibility with abstract base classes (ABCs) #123
  • add create_model method #113 #125
  • breaking change: rename .config to .__config__ on a model
  • breaking change: remove deprecated .values() on a model, use .dict() instead
  • remove use of OrderedDict and use simple dict #126
  • add Config.use_enum_values #127
  • add wildcard validators of the form @validate('*') #128

v0.6.4 (2018-02-01)

  • allow Python date and times objects #122

v0.6.3 (2017-11-26)

  • fix direct install without README.rst present

v0.6.2 (2017-11-13)

  • errors for invalid validator use
  • safer check for complex models in Settings

v0.6.1 (2017-11-08)

  • prevent duplicate validators, #101
  • add always kwarg to validators, #102

v0.6.0 (2017-11-07)

  • assignment validation #94, thanks petroswork!
  • JSON in environment variables for complex types, #96
  • add validator decorators for complex validation, #97
  • depreciate values(...) and replace with .dict(...), #99

v0.5.0 (2017-10-23)

  • add UUID validation #89
  • remove index and track from error object (json) if they're null #90
  • improve the error text when a list is provided rather than a dict #90
  • add benchmarks table to docs #91

v0.4.0 (2017-07-08)

  • show length in string validation error
  • fix aliases in config during inheritance #55
  • simplify error display
  • use unicode ellipsis in truncate
  • add parse_obj, parse_raw and parse_file helper functions #58
  • switch annotation only fields to come first in fields list not last

v0.3.0 (2017-06-21)

  • immutable models via config.allow_mutation = False, associated cleanup and performance improvement #44
  • immutable helper methods construct() and copy() #53
  • allow pickling of models #53
  • setattr is removed as __setattr__ is now intelligent #44
  • raise_exception removed, Models now always raise exceptions #44
  • instance method validators removed
  • django-restful-framework benchmarks added #47
  • fix inheritance bug #49
  • make str type stricter so list, dict etc are not coerced to strings. #52
  • add StrictStr which only always strings as input #52

v0.2.1 (2017-06-07)

  • pypi and travis together messed up the deploy of v0.2 this should fix it

v0.2.0 (2017-06-07)

  • breaking change: values() on a model is now a method not a property, takes include and exclude arguments
  • allow annotation only fields to support mypy
  • add pretty to_string(pretty=True) method for models

v0.1.0 (2017-06-03)

  • add docs
  • add history