v1.10.8 2023-05-23

What's Changed

• 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

New Contributors

• @DimitriPapadopoulos made their first contribution in #5375
• @ITProKyle made their first contribution in #5505
• @benwah made their first contribution in #5736

Full Changelog: v1.10.7...v1.10.8

v2.0a4 2023-05-05

What's Changed

• Add pydantic.typing.evaluate_forwardref on the REMOVED_IN_V2 list by @Kludex in #5559
• Move types documentation to usage/types and fix links by @tpdorsey in #5556
• Fix bug caused by builtin generics not converting str to ForwardRef by @dmontagu in #5554
• Add docstrings for decorators.py by @tpdorsey in #5565
• Bump typing-extensions minimum version to 4.5.0 by @KanchiShimono in #5552
• Add test for validate_call by @hramezani in #5574
• Fix reviewer name on pyproject.toml by @Kludex in #5577
• test for allow info with Decimal by @samuelcolvin in #5585
• raise TypeError in Field and PrivateAttr by @samuelcolvin in #5587
• Use only relative imports by @Kludex in #5576
• Change bare-enum behavior for strict json by @adriangb in #5591
• Json schema modify function as middleware by @adriangb in #5570
• Fix bug with recursive models with multiple references to the same type by @dmontagu in #5555
• Add a test for validation using context by @dmontagu in #5593
• Support UUID serialization to JSON by @Kludex in #5564
• Minor formatting fixes in docs by @tpdorsey in #5575
• Add test that proves order is preserved by @Kludex in #5600
• Uprev pydantic-core to 0.26.0 by @adriangb in #5602
• Support more complex typing structures with Annotated by @Kludex in #5603
• Improve consistency of error messages for Enum by @dmontagu in #5604
• Make it possible to have a plain BaseModel field annotation by @dmontagu in #5609
• Pydantic core 0.27.0 by @dmontagu in #5612
• Support PathLike by @samuelcolvin in #5589
• Add test for exotic approaches to forward refs by @dmontagu in #5526
• Add tests for date types by @Kludex in #5605
• Use PDM for lockfiles & env management by @adriangb in #5610
• Add datetime_parse module to the migration logic by @Kludex in #5617
• Migration notes for optional and nullable fields by @tpdorsey in #5618
• Fix dataclass module name by @adriangb in #5624
• Create a GetCoreSchemaHandler class by @adriangb in #5619
• Add model_validator to pydantic.__all__ by @dmontagu in #5633
• using "mike" for documenting multiple versions by @samuelcolvin in #5626
• docs preview with CloudFlare pages by @samuelcolvin in #5638
• port alpha release blog post by @samuelcolvin in #5637
• fix blog images and devtools example by @samuelcolvin in #5639
• Attempt to fix CI python versions by @dmontagu in #5643
• Add make help command by @dmontagu in #5634
• Fix double-calling of json schema funcs w/ Annotated by @adriangb in #5647
• remove unused info arguments from validator functions by @samuelcolvin in #5653
• set URL for errors by @samuelcolvin in #5655
• Add error message for unique_items parameter in conlist by @Kludex in #5650
• Update copy_on_model_validation tests by @hramezani in #5658
• Add missing types docs by @tpdorsey in #5616
• Error more eagerly for proper subclasses of generics that we don't know how to validate by @dmontagu in #5629
• Add alias generators to pydantic by @dmontagu in #5568
• Expand alias generator docstrings by @tpdorsey in #5669
• Expand validate_call docstring by @tpdorsey in #5670
• Remove xfail from tests.test_edge_cases.test_int_subclass as it is expected behavior by @hramezani in #5665
• 🐛 Sequence[str] does not raise on str by @lig in #5599
• Delegate equality checks for BaseModel by @dmontagu in #5662
• Pin urllib3 in CI by @adriangb in #5675
• Add deprecated on BaseModel methods by @Kludex in #5646
• Fix walk and apply by @adriangb in #5652
• Add job to create a tweet on release by @Kludex in #5567
• Add support for * to field_validator by @Kludex in #5657
• Re-add schema_extra functionality removed from config by @dmontagu in #5676
• Revise models docs to indicate attributes are copied for validation by @tpdorsey in #5632
• ✨ Add Base64 and a general Encoded types by @lig in #5615
• Remove Kludex from hooky temporarily by @dmontagu in #5678
• rename tests/internal.py -> tests/test_internal.py by @adriangb in #5684
• Rename AnalyzedType to TypeAdapter by @hramezani in #5689
• Move errors docs to top nav by @tpdorsey in #5685
• Add __prepare_pydantic_annotations__ for custom types by @adriangb in #5674
• Fix botched merge w/ rename of AnalyzedType -> TypeAdapter by @adriangb in #5692
• Use pydantic core main by @adriangb in #5680
• Test: Add test for variadic generic by @caniko in #5625
• 🔥 Remove Hypothesis plugin for now by @lig in #5691
• Use pydantic_serializer for serializing Any fields by @dmontagu in #5578
• Add a test demonstrating how to integrate with a third-party type by @dmontagu in #5620
• Pydantic settings docs by @tpdorsey in #5682
• Add UrlConstraints.__hash__ by @madkinsz in #5697
• Add custom init support by @dmontagu in #5703
• Bump version to 2.0a4 by @dmontagu in #5704

New Contributors

• @KanchiShimono made their first contribution in #5552
• @lig made their first contribution in #5599
• @caniko made their first contribution in #5625
• @madkinsz made their first contribution in #5697

Full Changelog: v2.0a3...v2.0a4

v2.0a3 2023-04-20

What's Changed

• Preserve maxlen attribute on validated deques by @dmontagu in #5458
• Defer evaluation of dataclasses for test 2162 by @dmontagu in #5462
• Remove __all__ from private modules by @Kludex in #5467
• pydantic-core v0.24.0 by @samuelcolvin in #5464
• validate_call to replace validate_arguments by @samuelcolvin in #5342
• Add BaseConfig back to the pydantic.config module by @Kludex in #5479
• Docs page for validation errors by @tpdorsey in #5459
• Fix handling of default values of BaseModel subclasses in JSON schema by @dmontagu in #5368
• Use cached BaseModel core schema to hopefully improve model building performance when a model is reused by @dmontagu in #5485
• Split __get_pydantic_core_schema__ into __modify_pydantic_core_schema__ and __get_pydantic_core_schema__ by @adriangb in #5472
• Refactor dataclasses, and get simple generics working by @dmontagu in #5473
• Add docstring coverage for dataclasses by @tpdorsey in #5471
• Move logic from _generate_schema.py to annotated_arguments.py by @adriangb in #5491
• Move tools module to deprecated namespace by @Kludex in #5483
• Rework __get_pydantic_core_schema__ APIs by @adriangb in #5490
• Add AliasPath and AliasPathChoices and use them in validation_alias type by @hramezani in #5500
• Uprev pydantic-core to 0.24.1 by @adriangb in #5494
• feat: allow accessing attributes as strings by @dijonkitchen in #5501
• Add docstring coverage for fields by @tpdorsey in #5469
• add codspell to pre-commit by @samuelcolvin in #5516
• improve some coverage by @samuelcolvin in #5518
• No case enum by @dmontagu in #5506
• Fix / rewrite xfail tests in docs by @adriangb in #5503
• Add docstring coverage for errors by @tpdorsey in #5482
• docs: fix spelling and wording by @dijonkitchen in #5525
• Computed Fields by @samuelcolvin in #5502
• Fix a couple of bugs in @model_validator by @adriangb in #5529
• Add test showing that missing abstractmethods error for all decorators by @dmontagu in #5530
• Add migration error messages to V2 by @Kludex in #5480
• Add support for Hashable by @dmontagu in #5489
• Change errors URL for next release by @dmontagu in #5538
• Prepare for 2.0a3 release by @dmontagu in #5540
• Revert "feat: allow accessing attributes as strings" by @samuelcolvin in #5541

New Contributors

• @dijonkitchen made their first contribution in #5501

Full Changelog: v2.0a2...v2.0a3

v2.0a2 2023-04-12

What's Changed

• Convert schema_of to use AnalyzedType by @adriangb in #5355
• Return hramezani back to the reviewers list by @hramezani in #5374
• Remove apparently-unnecessary model_rebuild by @dmontagu in #5371
• Add auto generate conversion table to doc by @hramezani in #5324
• Remove contuple from types by @hramezani in #5384
• Prevent multiple field serializers for a field in same class by @hramezani in #5378
• Handle functools.partial/partialmethod in validators by @adriangb in #5362
• Add support for frozen and final fields by @dmontagu in #5366
• Make types hashable by @hramezani in #5392
• Error URLs by @samuelcolvin in #5356
• Fix root validators & subclasses by @adriangb in #5390
• Only call pydantic_post_init with positional arguments by @dmontagu in #5382
• Move generic metadata into a typeddict by @dmontagu in #5361
• Rework allow_reuse in decorators by @adriangb in #5398
• Reorganize .gitignore file by @dmontagu in #5404
• Add _types_namespace argument to model_rebuild by @dmontagu in #5385
• Break out types into individual topics by @tpdorsey in #5372
• Add pre-commit hooks installation to Contribute page by @tpdorsey in #5403
• support pydantic-core v0.23 by @samuelcolvin in #5396
• Use pyright for type checking; fix errors and add type ignores by @adriangb in #5399
• make typecheck should run even if there are no changed files by @adriangb in #5407
• add docstring to _ModelNamespaceDict by @adriangb in #5408
• new ConfigWrapper by @samuelcolvin in #5411
• fix type checking for python 3.7 and simplify ForwardRef wrapper by @adriangb in #5415
• Convert internal classes into dataclasses by @adriangb in #5416
• Add pydantic_init_subclass classmethod by @dmontagu in #5386
• Add @model_validator by @adriangb in #5379
• Rename internal dataclass decorator by @adriangb in #5417
• Implement Annotated validators by @adriangb in #5364
• Fix reference in _decorators.py by @adriangb in #5418
• Add test for validators with underscores in their names by @adriangb in #5420
• add pydantic-core to version-info by @samuelcolvin in #5424
• Make Extra a literal by @adriangb in #5431
• Add Migration Guide page by @tpdorsey in #5429
• Clean up and add tests for extra and serialization by @adriangb in #5428
• Remove unused fixture and args in test_serializer.py by @adriangb in #5410
• Add substance to migration guide section on validator decorators by @adriangb in #5438
• Uprev pydantic-core to 0.23.1 by @adriangb in #5439
• Add Kludex to list of reviewers by @Kludex in #5445
• Clean up Field parameters by @hramezani in #5425
• Pin the version of pydantic-core by @dmontagu in #5451
• Fix mypy issue by @dmontagu in #5450
• Fix aliases and add validation_alias and serialization_alias to Field by @hramezani in #5433
• Fix more tests by @adriangb in #5455
• Build API docs with mkdocstrings by @tpdorsey in #5427
• Prep for v2.0a2 by @dmontagu in #5456

Full Changelog: v2.0a1...v2.0a2

v2.0a1 2023-04-03

First pre-release of Pydantic V2!

See this post for more details.

New Contributors

• @treylav made their first contribution in #4512
• @zunzara made their first contribution in #4533
• @zachkirsch made their first contribution in #4593
• @Natim made their first contribution in #4596
• @ischaojie made their first contribution in #4616
• @webknjaz made their first contribution in #4615
• @morian made their first contribution in #4690
• @Evorage0 made their first contribution in #4711
• @mnixry made their first contribution in #4734
• @VolkerH made their first contribution in #4743
• @iudeen made their first contribution in #4764
• @pmithrandir made their first contribution in #4758
• @lieryan made their first contribution in #4777
• @rifatrakib made their first contribution in #4855
• @jimkring made their first contribution in #4843
• @gr8jam made their first contribution in #4876
• @florianfischer91 made their first contribution in #4889
• @danielkjellid made their first contribution in #4931
• @kennethreitz made their first contribution in #4934
• @sudouser777 made their first contribution in #4920
• @mwgamble made their first contribution in #4912
• @ybressler made their first contribution in #4901
• @tiwilliam made their first contribution in #4869
• @pgiraud made their first contribution in #5001
• @glebmxyz made their first contribution in #5004
• @bgoldstone made their first contribution in #4870
• @ddneilson made their first contribution in #5010
• @antonagestam made their first contribution in #5075
• @theonlykingpin made their first contribution in #5139
• @andreyrcdias made their first contribution in #5210
• @tpdorsey made their first contribution in #5268

Full Changelog: v1.10.2...v2.0a1

v1.10.7 2023-03-22

What's Changed

• 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

New Contributors

• @javibookline made their first contribution in #5188
• @matejetz made their first contribution in #5223

Full Changelog: v1.10.6...v1.10.7

v1.10.6 2023-03-02

What's Changed

• 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

New Contributors

• @mrmammadov made their first contribution in #5074
• @JensHeinrich made their first contribution in #5127
• @kurtmckee made their first contribution in #5132

Full Changelog: v1.10.5...v1.10.6

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

New Contributors

• @thenx made their first contribution in #4977
• @mbillingr made their first contribution in #4963
• @MarkusSintonen made their first contribution in #5052

Full Changelog: v1.10.4...v1.10.5

v1.10.4 (2022-12-30)

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

Full Changelog: v1.10.3...v1.10.4

v1.10.3 (2022-12-29)

• 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

Full Changelog: v1.10.2...v1.10.3