pydantic/pydantic Release Notes

v2.11.0 2025-03-27 (2025-03-27)



## What's Changed
### Packaging

* Re-enable memray related tests on Python 3.12+ by @Viicos in https://github.com/pydantic/pydantic/pull/11191
* Bump astral-sh/setup-uv from 4 to 5 by @dependabot in https://github.com/pydantic/pydantic/pull/11205
* Add a `check_pydantic_core_version()` function by @Viicos in https://github.com/pydantic/pydantic/pull/11324
* Remove `greenlet` development dependency by @Viicos in https://github.com/pydantic/pydantic/pull/11351
* Bump ruff from 0.9.2 to 0.9.5 by @Viicos in https://github.com/pydantic/pydantic/pull/11407
* Improve release automation process by @austinyu in https://github.com/pydantic/pydantic/pull/11427
* Bump dawidd6/action-download-artifact from 8 to 9 by @dependabot in https://github.com/pydantic/pydantic/pull/11513
* Bump `pydantic-core` to v2.32.0 by @Viicos in https://github.com/pydantic/pydantic/pull/11567

### New Features

* Support unsubstituted type variables with both a default and a bound or constraints by @FyZzyss in https://github.com/pydantic/pydantic/pull/10789
* Add a `default_factory_takes_validated_data` property to `FieldInfo` by @Viicos in https://github.com/pydantic/pydantic/pull/11034
* Raise a better error when a generic alias is used inside `type[]` by @Viicos in https://github.com/pydantic/pydantic/pull/11088
* Properly support PEP 695 generics syntax by @Viicos in https://github.com/pydantic/pydantic/pull/11189
* Properly support type variable defaults by @Viicos in https://github.com/pydantic/pydantic/pull/11332
* Add support for validating v6, v7, v8 UUIDs by @astei in https://github.com/pydantic/pydantic/pull/11436
* Improve alias configuration APIs by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11468
* Add experimental support for free threading by @Viicos in https://github.com/pydantic/pydantic/pull/11516
* Add `encoded_string()` method to the URL types by @YassinNouh21 in https://github.com/pydantic/pydantic/pull/11580
* Add support for `defer_build` with `@validate_call` decorator by @Viicos in https://github.com/pydantic/pydantic/pull/11584
* Allow `@with_config` decorator to be used with keyword arguments by @Viicos in https://github.com/pydantic/pydantic/pull/11608
* Simplify customization of default value inclusion in JSON Schema generation by @Viicos in https://github.com/pydantic/pydantic/pull/11634
* Add `generate_arguments_schema()` function by @Viicos in https://github.com/pydantic/pydantic/pull/11572

### Changes

* Rework `create_model` field definitions format by @Viicos in https://github.com/pydantic/pydantic/pull/11032
* Raise a deprecation warning when a field is annotated as final with a default value by @Viicos in https://github.com/pydantic/pydantic/pull/11168
* Deprecate accessing `model_fields` and `model_computed_fields` on instances by @Viicos in https://github.com/pydantic/pydantic/pull/11169
* Move core schema generation logic for path types inside the `GenerateSchema` class by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10846
* Move `Mapping` schema gen to `GenerateSchema` to complete removal of `prepare_annotations_for_known_type` workaround by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11247
* Remove Python 3.8 Support by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11258
* Optimize calls to `get_type_ref` by @Viicos in https://github.com/pydantic/pydantic/pull/10863
* Disable `pydantic-core` core schema validation by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11271
### Performance
* Only evaluate `FieldInfo` annotations if required during schema building by @Viicos in https://github.com/pydantic/pydantic/pull/10769
* Improve `__setattr__` performance of Pydantic models by caching setter functions by @MarkusSintonen in https://github.com/pydantic/pydantic/pull/10868
* Improve annotation application performance by @Viicos in https://github.com/pydantic/pydantic/pull/11186
* Improve performance of `_typing_extra` module by @Viicos in https://github.com/pydantic/pydantic/pull/11255
* Refactor and optimize schema cleaning logic by @Viicos in https://github.com/pydantic/pydantic/pull/11244
* Create a single dictionary when creating a `CoreConfig` instance by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11384
* Reuse cached core schemas for parametrized generic Pydantic models by @MarkusSintonen in https://github.com/pydantic/pydantic/pull/11434
### Fixes
* Add validation tests for `_internal/_validators.py` by @tkasuz in https://github.com/pydantic/pydantic/pull/10763
* Subclass all single host url classes from `AnyUrl` to preserve behavior from v2.9 by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10856
* Improve `TypeAdapter` instance repr by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10872
* Use the correct frame when instantiating a parametrized `TypeAdapter` by @Viicos in https://github.com/pydantic/pydantic/pull/10893
* Relax check for validated data in default factory utils by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10909
* Fix type checking issue with `model_fields` and `model_computed_fields` by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10911
* Use the parent configuration during schema generation for stdlib dataclasses by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10928
* Use the globals of the function when evaluating the return type of serializers and computed_fields by @Viicos in https://github.com/pydantic/pydantic/pull/10929
* Fix url constraint application by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10922
* Fix URL equality with different validation methods by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10934
* Fix JSON schema title when specified as `''` by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10936
* Do not evaluate annotations for private fields by @Viicos in https://github.com/pydantic/pydantic/pull/10962
* Support serialization as any for `Secret` types and `Url` types by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10947
* Fix type hint of `Field.default` to be compatible with Python 3.8 and 3.9 by @Viicos in https://github.com/pydantic/pydantic/pull/10972
* hashing support for urls by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10975
* Hide `BaseModel.__replace__` definition from type checkers by @Viicos in https://github.com/pydantic/pydantic/pull/10979
* Set fields when `defer_build` is set on Pydantic dataclasses by @Viicos in https://github.com/pydantic/pydantic/pull/10984
* Do not resolve the JSON Schema reference for `dict` core schema keys by @Viicos in https://github.com/pydantic/pydantic/pull/10989
* Use the globals of the function when evaluating the return type for `PlainSerializer` and `WrapSerializer` functions by @Viicos in https://github.com/pydantic/pydantic/pull/11008
* Fix host required enforcement for urls to be compatible with v2.9 behavior by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11027
* Fix url json schema in `serialization` mode by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11035
* Fix for comparison of AnyUrl objects by @alexprabhat99 in https://github.com/pydantic/pydantic/pull/11082
* Properly fetch PEP 695 type params for functions, do not fetch annotations from signature by @Viicos in https://github.com/pydantic/pydantic/pull/11093
* Infer final fields with a default value as class variables in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11121
* Recursively unpack `Literal` values if using PEP 695 type aliases by @Viicos in https://github.com/pydantic/pydantic/pull/11114
* Override `__subclasscheck__` on `ModelMetaclass` to avoid memory leak and performance issues by @Viicos in https://github.com/pydantic/pydantic/pull/11116
* Include JSON Schema input core schema in function schemas by @Viicos in https://github.com/pydantic/pydantic/pull/11085
* Add `len` to `_BaseUrl` to avoid TypeError by @Kharianne in https://github.com/pydantic/pydantic/pull/11111
* Make sure the type reference is removed from the seen references by @Viicos in https://github.com/pydantic/pydantic/pull/11143
* Add FastAPI and SQLModel to third-party tests by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11044
* Improve discriminated union error message for invalid union variants by @Viicos in https://github.com/pydantic/pydantic/pull/11161
* Unpack PEP 695 type aliases if using the `Annotated` form by @Viicos in https://github.com/pydantic/pydantic/pull/11109
* Remove custom MRO implementation of Pydantic models by @Viicos in https://github.com/pydantic/pydantic/pull/11184
* Add pandera third-party tests by @Viicos in https://github.com/pydantic/pydantic/pull/11193
* Add ODMantic third-party tests by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11197
* Copy `WithJsonSchema` schema to avoid sharing mutated data by @thejcannon in https://github.com/pydantic/pydantic/pull/11014
* Do not cache parametrized models when in the process of parametrizing another model by @Viicos in https://github.com/pydantic/pydantic/pull/10704
* Add discriminated union related metadata entries to the `CoreMetadata` definition by @Viicos in https://github.com/pydantic/pydantic/pull/11216
* Consolidate schema definitions logic in the `_Definitions` class by @Viicos in https://github.com/pydantic/pydantic/pull/11208
* Fix url serialization for unions by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11227
* Support initializing root model fields with values of the `root` type in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11212
* Move `deque` schema gen to `GenerateSchema` class by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11239
* Fix various issues with dataclasses and `use_attribute_docstrings` by @Viicos in https://github.com/pydantic/pydantic/pull/11246
* Only compute normalized decimal places if necessary in `decimal_places_validator` by @misrasaurabh1 in https://github.com/pydantic/pydantic/pull/11281
* Add support for `validation_alias` in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11295
* Fix JSON Schema reference collection with `"examples"` keys by @Viicos in https://github.com/pydantic/pydantic/pull/11305
* Do not transform model serializer functions as class methods in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11298
* Fix url python serialization by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11330
* Add additional allowed schemes for `ClickHouseDsn` by @Maze21127 in https://github.com/pydantic/pydantic/pull/11319
* Coerce decimal constraints to `Decimal` instances by @Viicos in https://github.com/pydantic/pydantic/pull/11350
* Use the correct JSON Schema mode when handling function schemas by @Viicos in https://github.com/pydantic/pydantic/pull/11367
* Fix JSON Schema reference logic with `examples` keys by @Viicos in https://github.com/pydantic/pydantic/pull/11366
* Improve exception message when encountering recursion errors during type evaluation by @Viicos in https://github.com/pydantic/pydantic/pull/11356
* Always include `additionalProperties: True` for arbitrary dictionary schemas by @austinyu in https://github.com/pydantic/pydantic/pull/11392
* Expose `fallback` parameter in serialization methods by @Viicos in https://github.com/pydantic/pydantic/pull/11398
* Fix path serialization behavior by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11416
* Do not reuse validators and serializers during model rebuild by @Viicos in https://github.com/pydantic/pydantic/pull/11429
* Collect model fields when rebuilding a model by @Viicos in https://github.com/pydantic/pydantic/pull/11388
* Allow cached properties to be altered on frozen models by @Viicos in https://github.com/pydantic/pydantic/pull/11432
* Fix tuple serialization for `Sequence` types by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11435
* Fix: do not check for `__get_validators__` on classes where `__get_pydantic_core_schema__` is also defined by @tlambert03 in https://github.com/pydantic/pydantic/pull/11444
* Allow callable instances to be used as serializers by @Viicos in https://github.com/pydantic/pydantic/pull/11451
* Improve error thrown when overriding field with a property by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11459
* Add BentoML and Semantic Kernel third-party tests by @Viicos in https://github.com/pydantic/pydantic/pull/11469
* Adding `langchain` third party tests by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11474
* Fix JSON Schema generation with referenceable core schemas holding JSON metadata by @Viicos in https://github.com/pydantic/pydantic/pull/11475
* Support strict specification on union member types by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11481
* Run Beanie third-party tests on a single Python version by @Viicos in https://github.com/pydantic/pydantic/pull/11502
* Implicitly set `validate_by_name` to `True` when `validate_by_alias` is `False` by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11503
* Change type of `Any` when synthesizing `BaseSettings.__init__` signature in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11497
* Use the `typing-inspection` library by @Viicos in https://github.com/pydantic/pydantic/pull/11479
* Support type variable defaults referencing other type variables by @Viicos in https://github.com/pydantic/pydantic/pull/11520
* Fix `NotRequired` qualifier not taken into account in stringified annotation by @Viicos in https://github.com/pydantic/pydantic/pull/11559
* Allow generic typed dictionaries to be used for unpacked variadic keyword parameters by @Viicos in https://github.com/pydantic/pydantic/pull/11571
* Fix runtime error when computing model string representation involving cached properties and self-referenced models by @Viicos in https://github.com/pydantic/pydantic/pull/11579
* Preserve other steps when using the ellipsis in the pipeline API by @Viicos in https://github.com/pydantic/pydantic/pull/11626
* Fix deferred discriminator application logic by @Viicos in https://github.com/pydantic/pydantic/pull/11591

## New Contributors
* @FyZzyss made their first contribution in https://github.com/pydantic/pydantic/pull/10789
* @tamird made their first contribution in https://github.com/pydantic/pydantic/pull/10948
* @felixxm made their first contribution in https://github.com/pydantic/pydantic/pull/11077
* @alexprabhat99 made their first contribution in https://github.com/pydantic/pydantic/pull/11082
* @Kharianne made their first contribution in https://github.com/pydantic/pydantic/pull/11111
* @mdaffad made their first contribution in https://github.com/pydantic/pydantic/pull/11177
* @thejcannon made their first contribution in https://github.com/pydantic/pydantic/pull/11014
* @thomasfrimannkoren made their first contribution in https://github.com/pydantic/pydantic/pull/11251
* @usernameMAI made their first contribution in https://github.com/pydantic/pydantic/pull/11275
* @ananiavito made their first contribution in https://github.com/pydantic/pydantic/pull/11302
* @pawamoy made their first contribution in https://github.com/pydantic/pydantic/pull/11311
* @Maze21127 made their first contribution in https://github.com/pydantic/pydantic/pull/11319
* @kauabh made their first contribution in https://github.com/pydantic/pydantic/pull/11369
* @jaceklaskowski made their first contribution in https://github.com/pydantic/pydantic/pull/11353
* @tmpbeing made their first contribution in https://github.com/pydantic/pydantic/pull/11375
* @petyosi made their first contribution in https://github.com/pydantic/pydantic/pull/11405
* @austinyu made their first contribution in https://github.com/pydantic/pydantic/pull/11392
* @mikeedjones made their first contribution in https://github.com/pydantic/pydantic/pull/11402
* @astei made their first contribution in https://github.com/pydantic/pydantic/pull/11436
* @dsayling made their first contribution in https://github.com/pydantic/pydantic/pull/11522
* @joren485 made their first contribution in https://github.com/pydantic/pydantic/pull/11547
* @cmenon12 made their first contribution in https://github.com/pydantic/pydantic/pull/11562
* @Jeukoh made their first contribution in https://github.com/pydantic/pydantic/pull/11611

**Full Changelog**: https://github.com/pydantic/pydantic/compare/v2.10.6...v2.11.0

v2.11.0b1 2025-03-06 (2025-03-06)

[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0b1)

### What's Changed

#### Packaging

* Add a `check_pydantic_core_version()` function by @Viicos in https://github.com/pydantic/pydantic/pull/11324
* Remove `greenlet` development dependency by @Viicos in https://github.com/pydantic/pydantic/pull/11351
* Use the `typing-inspection` library by @Viicos in https://github.com/pydantic/pydantic/pull/11479
* Bump `pydantic-core` to `v2.31.1` by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11526

#### New Features

* Support unsubstituted type variables with both a default and a bound or constraints by @FyZzyss in https://github.com/pydantic/pydantic/pull/10789
* Add a `default_factory_takes_validated_data` property to `FieldInfo` by @Viicos in https://github.com/pydantic/pydantic/pull/11034
* Raise a better error when a generic alias is used inside `type[]` by @Viicos in https://github.com/pydantic/pydantic/pull/11088
* Properly support PEP 695 generics syntax by @Viicos in https://github.com/pydantic/pydantic/pull/11189
* Properly support type variable defaults by @Viicos in https://github.com/pydantic/pydantic/pull/11332
* Add support for validating v6, v7, v8 UUIDs by @astei in https://github.com/pydantic/pydantic/pull/11436
* Improve alias configuration APIs by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11468

#### Changes

* Rework `create_model` field definitions format by @Viicos in https://github.com/pydantic/pydantic/pull/11032
* Raise a deprecation warning when a field is annotated as final with a default value by @Viicos in https://github.com/pydantic/pydantic/pull/11168
* Deprecate accessing `model_fields` and `model_computed_fields` on instances by @Viicos in https://github.com/pydantic/pydantic/pull/11169
* **Breaking Change:** Move core schema generation logic for path types inside the `GenerateSchema` class by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10846
* Remove Python 3.8 Support by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11258
* Optimize calls to `get_type_ref` by @Viicos in https://github.com/pydantic/pydantic/pull/10863
* Disable `pydantic-core` core schema validation by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11271

#### Performance

* Only evaluate `FieldInfo` annotations if required during schema building by @Viicos in https://github.com/pydantic/pydantic/pull/10769
* Improve `__setattr__` performance of Pydantic models by caching setter functions by @MarkusSintonen in https://github.com/pydantic/pydantic/pull/10868
* Improve annotation application performance by @Viicos in https://github.com/pydantic/pydantic/pull/11186
* Improve performance of `_typing_extra` module by @Viicos in https://github.com/pydantic/pydantic/pull/11255
* Refactor and optimize schema cleaning logic by @Viicos in https://github.com/pydantic/pydantic/pull/11244
* Create a single dictionary when creating a `CoreConfig` instance by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11384
* Bump `pydantic-core` and thus use `SchemaValidator` and `SchemaSerializer` caching by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11402
* Reuse cached core schemas for parametrized generic Pydantic models by @MarkusSintonen in https://github.com/pydantic/pydantic/pull/11434

#### Fixes

* Improve `TypeAdapter` instance repr by @sydney-runkle in https://github.com/pydantic/pydantic/pull/10872
* Use the correct frame when instantiating a parametrized `TypeAdapter` by @Viicos in https://github.com/pydantic/pydantic/pull/10893
* Infer final fields with a default value as class variables in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11121
* Recursively unpack `Literal` values if using PEP 695 type aliases by @Viicos in https://github.com/pydantic/pydantic/pull/11114
* Override `__subclasscheck__` on `ModelMetaclass` to avoid memory leak and performance issues by @Viicos in https://github.com/pydantic/pydantic/pull/11116
* Remove unused `_extract_get_pydantic_json_schema()` parameter by @Viicos in https://github.com/pydantic/pydantic/pull/11155
* Improve discriminated union error message for invalid union variants by @Viicos in https://github.com/pydantic/pydantic/pull/11161
* Unpack PEP 695 type aliases if using the `Annotated` form by @Viicos in https://github.com/pydantic/pydantic/pull/11109
* Add missing stacklevel in `deprecated_instance_property` warning by @Viicos in https://github.com/pydantic/pydantic/pull/11200
* Copy `WithJsonSchema` schema to avoid sharing mutated data by @thejcannon in https://github.com/pydantic/pydantic/pull/11014
* Do not cache parametrized models when in the process of parametrizing another model by @Viicos in https://github.com/pydantic/pydantic/pull/10704
* Add discriminated union related metadata entries to the `CoreMetadata` definition by @Viicos in https://github.com/pydantic/pydantic/pull/11216
* Consolidate schema definitions logic in the `_Definitions` class by @Viicos in https://github.com/pydantic/pydantic/pull/11208
* Support initializing root model fields with values of the `root` type in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11212
* Fix various issues with dataclasses and `use_attribute_docstrings` by @Viicos in https://github.com/pydantic/pydantic/pull/11246
* Only compute normalized decimal places if necessary in `decimal_places_validator` by @misrasaurabh1 in https://github.com/pydantic/pydantic/pull/11281
* Add support for `validation_alias` in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11295
* Fix JSON Schema reference collection with `"examples"` keys by @Viicos in https://github.com/pydantic/pydantic/pull/11305
* Do not transform model serializer functions as class methods in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11298
* Simplify `GenerateJsonSchema.literal_schema()` implementation by @misrasaurabh1 in https://github.com/pydantic/pydantic/pull/11321
* Add additional allowed schemes for `ClickHouseDsn` by @Maze21127 in https://github.com/pydantic/pydantic/pull/11319
* Coerce decimal constraints to `Decimal` instances by @Viicos in https://github.com/pydantic/pydantic/pull/11350
* Use the correct JSON Schema mode when handling function schemas by @Viicos in https://github.com/pydantic/pydantic/pull/11367
* Improve exception message when encountering recursion errors during type evaluation by @Viicos in https://github.com/pydantic/pydantic/pull/11356
* Always include `additionalProperties: True` for arbitrary dictionary schemas by @austinyu in https://github.com/pydantic/pydantic/pull/11392
* Expose `fallback` parameter in serialization methods by @Viicos in https://github.com/pydantic/pydantic/pull/11398
* Fix path serialization behavior by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11416
* Do not reuse validators and serializers during model rebuild by @Viicos in https://github.com/pydantic/pydantic/pull/11429
* Collect model fields when rebuilding a model by @Viicos in https://github.com/pydantic/pydantic/pull/11388
* Allow cached properties to be altered on frozen models by @Viicos in https://github.com/pydantic/pydantic/pull/11432
* Fix tuple serialization for `Sequence` types by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11435
* Fix: do not check for `__get_validators__` on classes where `__get_pydantic_core_schema__` is also defined by @tlambert03 in https://github.com/pydantic/pydantic/pull/11444
* Allow callable instances to be used as serializers by @Viicos in https://github.com/pydantic/pydantic/pull/11451
* Improve error thrown when overriding field with a property by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11459
* Fix JSON Schema generation with referenceable core schemas holding JSON metadata by @Viicos in https://github.com/pydantic/pydantic/pull/11475
* Support strict specification on union member types by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11481
* Implicitly set `validate_by_name` to `True` when `validate_by_alias` is `False` by @sydney-runkle in https://github.com/pydantic/pydantic/pull/11503
* Change type of `Any` when synthesizing `BaseSettings.__init__` signature in the mypy plugin by @Viicos in https://github.com/pydantic/pydantic/pull/11497
* Support type variable defaults referencing other type variables by @Viicos in https://github.com/pydantic/pydantic/pull/11520
* Fix `ValueError` on year zero by @davidhewitt in https://github.com/pydantic/pydantic-core/pull/1583
* `dataclass` `InitVar` shouldn't be required on serialization by @sydney-runkle in https://github.com/pydantic/pydantic-core/pull/1602

## New Contributors
* @FyZzyss made their first contribution in https://github.com/pydantic/pydantic/pull/10789
* @tamird made their first contribution in https://github.com/pydantic/pydantic/pull/10948
* @felixxm made their first contribution in https://github.com/pydantic/pydantic/pull/11077
* @alexprabhat99 made their first contribution in https://github.com/pydantic/pydantic/pull/11082
* @Kharianne made their first contribution in https://github.com/pydantic/pydantic/pull/11111
* @mdaffad made their first contribution in https://github.com/pydantic/pydantic/pull/11177
* @thejcannon made their first contribution in https://github.com/pydantic/pydantic/pull/11014
* @thomasfrimannkoren made their first contribution in https://github.com/pydantic/pydantic/pull/11251
* @usernameMAI made their first contribution in https://github.com/pydantic/pydantic/pull/11275
* @ananiavito made their first contribution in https://github.com/pydantic/pydantic/pull/11302
* @pawamoy made their first contribution in https://github.com/pydantic/pydantic/pull/11311
* @Maze21127 made their first contribution in https://github.com/pydantic/pydantic/pull/11319
* @kauabh made their first contribution in https://github.com/pydantic/pydantic/pull/11369
* @jaceklaskowski made their first contribution in https://github.com/pydantic/pydantic/pull/11353
* @tmpbeing made their first contribution in https://github.com/pydantic/pydantic/pull/11375
* @petyosi made their first contribution in https://github.com/pydantic/pydantic/pull/11405
* @austinyu made their first contribution in https://github.com/pydantic/pydantic/pull/11392
* @mikeedjones made their first contribution in https://github.com/pydantic/pydantic/pull/11402
* @astei made their first contribution in https://github.com/pydantic/pydantic/pull/11436
* @dsayling made their first contribution in https://github.com/pydantic/pydantic/pull/11522
* @sobolevn made their first contribution in https://github.com/pydantic/pydantic-core/pull/1645

**Full Changelog**: https://github.com/pydantic/pydantic/compare/v2.10.6...v2.11.0b1

v2.11.0a1 2025-01-30 (2025-01-30)

## v2.11.0a1 (2025-01-30)

### What's Changed

> [!NOTE]  
> Pydantic v2.11 is a version strongly focused on build time performance of Pydantic models (and core schema generation in general).
> This is an early alpha release, meant to collect early feedback from users having issues with core schema builds.

#### Packaging

* Bump dawidd6/action-download-artifact from 6 to 7 by @dependabot in [#11018](https://github.com/pydantic/pydantic/pull/11018)
* Re-enable memray related tests on Python 3.12+ by @Viicos in [#11191](https://github.com/pydantic/pydantic/pull/11191)
* Bump astral-sh/setup-uv to 5 by @dependabot in [#11205](https://github.com/pydantic/pydantic/pull/11205)
* Bump `ruff` to v0.9.0 by @sydney-runkle in [#11254](https://github.com/pydantic/pydantic/pull/11254)
* Regular `uv.lock` deps update by @sydney-runkle in [#11333](https://github.com/pydantic/pydantic/pull/11333)
* Add a `check_pydantic_core_version()` function by @Viicos in [#11324](https://github.com/pydantic/pydantic/pull/11324)
* Remove `greenlet` development dependency by @Viicos in [#11351](https://github.com/pydantic/pydantic/pull/11351)
* Bump `pydantic-core` to v2.28.0 by @Viicos in [#11364](https://github.com/pydantic/pydantic/pull/11364)

#### New Features

* Support unsubstituted type variables with both a default and a bound or constraints by @FyZzyss in [#10789](https://github.com/pydantic/pydantic/pull/10789)
* Add a `default_factory_takes_validated_data` property to `FieldInfo` by @Viicos in [#11034](https://github.com/pydantic/pydantic/pull/11034)
* Raise a better error when a generic alias is used inside `type[]` by @Viicos in [#11088](https://github.com/pydantic/pydantic/pull/11088)
* Properly support PEP 695 generics syntax by @Viicos in [#11189](https://github.com/pydantic/pydantic/pull/11189)
* Properly support type variable defaults by @Viicos in [#11332](https://github.com/pydantic/pydantic/pull/11332)

#### Changes

* Rework `create_model` field definitions format by @Viicos in [#11032](https://github.com/pydantic/pydantic/pull/11032)
* Raise a deprecation warning when a field is annotated as final with a default value by @Viicos in [#11168](https://github.com/pydantic/pydantic/pull/11168)
* Deprecate accessing `model_fields` and `model_computed_fields` on instances by @Viicos in [#11169](https://github.com/pydantic/pydantic/pull/11169)
* Move core schema generation logic for path types inside the `GenerateSchema` class by @sydney-runkle in [#10846](https://github.com/pydantic/pydantic/pull/10846)
* Move `deque` schema gen to `GenerateSchema` class by @sydney-runkle in [#11239](https://github.com/pydantic/pydantic/pull/11239)
* Move `Mapping` schema gen to `GenerateSchema` to complete removal of `prepare_annotations_for_known_type` workaround by @sydney-runkle in [#11247](https://github.com/pydantic/pydantic/pull/11247)
* Remove Python 3.8 Support by @sydney-runkle in [#11258](https://github.com/pydantic/pydantic/pull/11258)
* Disable `pydantic-core` core schema validation by @sydney-runkle in [#11271](https://github.com/pydantic/pydantic/pull/11271)

#### Performance

* Only evaluate `FieldInfo` annotations if required during schema building by @Viicos in [#10769](https://github.com/pydantic/pydantic/pull/10769)
* Optimize calls to `get_type_ref` by @Viicos in [#10863](https://github.com/pydantic/pydantic/pull/10863)
* Improve `__setattr__` performance of Pydantic models by caching setter functions by @MarkusSintonen in [#10868](https://github.com/pydantic/pydantic/pull/10868)
* Improve annotation application performance by @Viicos in [#11186](https://github.com/pydantic/pydantic/pull/11186)
* Improve performance of `_typing_extra` module by @Viicos in [#11255](https://github.com/pydantic/pydantic/pull/11255)
* Refactor and optimize schema cleaning logic by @Viicos and @MarkusSintonen in [#11244](https://github.com/pydantic/pydantic/pull/11244)

#### Fixes

* Add validation tests for `_internal/_validators.py` by @tkasuz in [#10763](https://github.com/pydantic/pydantic/pull/10763)
* Improve `TypeAdapter` instance repr by @sydney-runkle in [#10872](https://github.com/pydantic/pydantic/pull/10872)
* Revert "ci: use locally built pydantic-core with debug symbols by @sydney-runkle in [#10942](https://github.com/pydantic/pydantic/pull/10942)
* Re-enable all FastAPI tests by @tamird in [#10948](https://github.com/pydantic/pydantic/pull/10948)
* Fix typo in HISTORY.md. by @felixxm in [#11077](https://github.com/pydantic/pydantic/pull/11077)
* Infer final fields with a default value as class variables in the mypy plugin by @Viicos in [#11121](https://github.com/pydantic/pydantic/pull/11121)
* Recursively unpack `Literal` values if using PEP 695 type aliases by @Viicos in [#11114](https://github.com/pydantic/pydantic/pull/11114)
* Override `__subclasscheck__` on `ModelMetaclass` to avoid memory leak and performance issues by @Viicos in [#11116](https://github.com/pydantic/pydantic/pull/11116)
* Remove unused `_extract_get_pydantic_json_schema()` parameter by @Viicos in [#11155](https://github.com/pydantic/pydantic/pull/11155)
* Add FastAPI and SQLModel to third-party tests by @sydney-runkle in [#11044](https://github.com/pydantic/pydantic/pull/11044)
* Fix conditional expressions syntax for third-party tests by @Viicos in [#11162](https://github.com/pydantic/pydantic/pull/11162)
* Move FastAPI tests to third-party workflow by @Viicos in [#11164](https://github.com/pydantic/pydantic/pull/11164)
* Improve discriminated union error message for invalid union variants by @Viicos in [#11161](https://github.com/pydantic/pydantic/pull/11161)
* Unpack PEP 695 type aliases if using the `Annotated` form by @Viicos in [#11109](https://github.com/pydantic/pydantic/pull/11109)
* Include `openapi-python-client` check in issue creation for third-party failures, use `main` branch by @sydney-runkle in [#11182](https://github.com/pydantic/pydantic/pull/11182)
* Add pandera third-party tests by @Viicos in [#11193](https://github.com/pydantic/pydantic/pull/11193)
* Add ODMantic third-party tests by @sydney-runkle in [#11197](https://github.com/pydantic/pydantic/pull/11197)
* Add missing stacklevel in `deprecated_instance_property` warning by @Viicos in [#11200](https://github.com/pydantic/pydantic/pull/11200)
* Copy `WithJsonSchema` schema to avoid sharing mutated data by @thejcannon in [#11014](https://github.com/pydantic/pydantic/pull/11014)
* Do not cache parametrized models when in the process of parametrizing another model by @Viicos in [#10704](https://github.com/pydantic/pydantic/pull/10704)
* Re-enable Beanie third-party tests by @Viicos in [#11214](https://github.com/pydantic/pydantic/pull/11214)
* Add discriminated union related metadata entries to the `CoreMetadata` definition by @Viicos in [#11216](https://github.com/pydantic/pydantic/pull/11216)
* Consolidate schema definitions logic in the `_Definitions` class by @Viicos in [#11208](https://github.com/pydantic/pydantic/pull/11208)
* Support initializing root model fields with values of the `root` type in the mypy plugin by @Viicos in [#11212](https://github.com/pydantic/pydantic/pull/11212)
* Fix various issues with dataclasses and `use_attribute_docstrings` by @Viicos in [#11246](https://github.com/pydantic/pydantic/pull/11246)
* Only compute normalized decimal places if necessary in `decimal_places_validator` by @misrasaurabh1 in [#11281](https://github.com/pydantic/pydantic/pull/11281)
* Fix two misplaced sentences in validation errors documentation by @ananiavito in [#11302](https://github.com/pydantic/pydantic/pull/11302)
* Fix mkdocstrings inventory example in documentation by @pawamoy in [#11311](https://github.com/pydantic/pydantic/pull/11311)
* Add support for `validation_alias` in the mypy plugin by @Viicos in [#11295](https://github.com/pydantic/pydantic/pull/11295)
* Do not transform model serializer functions as class methods in the mypy plugin by @Viicos in [#11298](https://github.com/pydantic/pydantic/pull/11298)
* Simplify `GenerateJsonSchema.literal_schema()` implementation by @misrasaurabh1 in [#11321](https://github.com/pydantic/pydantic/pull/11321)
* Add additional allowed schemes for `ClickHouseDsn` by @Maze21127 in [#11319](https://github.com/pydantic/pydantic/pull/11319)
* Coerce decimal constraints to `Decimal` instances by @Viicos in [#11350](https://github.com/pydantic/pydantic/pull/11350)
* Fix `ValueError` on year zero by @davidhewitt in [pydantic-core#1583](https://github.com/pydantic/pydantic-core/pull/1583)

### New Contributors

* @FyZzyss made their first contribution in [#10789](https://github.com/pydantic/pydantic/pull/10789)
* @tamird made their first contribution in [#10948](https://github.com/pydantic/pydantic/pull/10948)
* @felixxm made their first contribution in [#11077](https://github.com/pydantic/pydantic/pull/11077)
* @alexprabhat99 made their first contribution in [#11082](https://github.com/pydantic/pydantic/pull/11082)
* @Kharianne made their first contribution in [#11111](https://github.com/pydantic/pydantic/pull/11111)
* @mdaffad made their first contribution in [#11177](https://github.com/pydantic/pydantic/pull/11177)
* @thejcannon made their first contribution in [#11014](https://github.com/pydantic/pydantic/pull/11014)
* @thomasfrimannkoren made their first contribution in [#11251](https://github.com/pydantic/pydantic/pull/11251)
* @usernameMAI made their first contribution in [#11275](https://github.com/pydantic/pydantic/pull/11275)
* @ananiavito made their first contribution in [#11302](https://github.com/pydantic/pydantic/pull/11302)
* @pawamoy made their first contribution in [#11311](https://github.com/pydantic/pydantic/pull/11311)
* @Maze21127 made their first contribution in [#11319](https://github.com/pydantic/pydantic/pull/11319)

v2.10.0 2024-11-20 (2024-11-20)

The code released in v2.10.0 is practically identical to that of v2.10.0b2.
See the [v2.10 release blog post](https://pydantic.dev/articles/pydantic-v2-10-release) for the highlights!

## What's Changed

### Packaging

* Bump `pydantic-core` to `v2.27.0` by @sydney-runkle in [#10825](https://github.com/pydantic/pydantic/pull/10825)
* Replaced pdm with uv by @frfahim in [#10727](https://github.com/pydantic/pydantic/pull/10727)

### New Features

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

### Changes

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

### Performance

* Schema cleaning: skip unnecessary copies during schema walking by @Viicos in [#10286](https://github.com/pydantic/pydantic/pull/10286)
* Refactor namespace logic for annotations evaluation by @Viicos in [#10530](https://github.com/pydantic/pydantic/pull/10530)
* Improve email regexp on edge cases by @AlekseyLobanov in [#10601](https://github.com/pydantic/pydantic/pull/10601)
* `CoreMetadata` refactor with an emphasis on documentation, schema build time performance, and reducing complexity by @sydney-runkle in [#10675](https://github.com/pydantic/pydantic/pull/10675)

### Fixes

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

## New Contributors

* @jakob-keller made their first contribution in [#10331](https://github.com/pydantic/pydantic/pull/10331)
* @MovisLi made their first contribution in [#10374](https://github.com/pydantic/pydantic/pull/10374)
* @joaopalmeiro made their first contribution in [#10405](https://github.com/pydantic/pydantic/pull/10405)
* @theunkn0wn1 made their first contribution in [#10378](https://github.com/pydantic/pydantic/pull/10378)
* @cdwilson made their first contribution in [#10412](https://github.com/pydantic/pydantic/pull/10412)
* @dlax made their first contribution in [#10421](https://github.com/pydantic/pydantic/pull/10421)
* @kschwab made their first contribution in [#10479](https://github.com/pydantic/pydantic/pull/10479)
* @santibreo made their first contribution in [#10453](https://github.com/pydantic/pydantic/pull/10453)
* @FlorianSW made their first contribution in [#10478](https://github.com/pydantic/pydantic/pull/10478)
* @tkasuz made their first contribution in [#10555](https://github.com/pydantic/pydantic/pull/10555)
* @AlekseyLobanov made their first contribution in [#10601](https://github.com/pydantic/pydantic/pull/10601)
* @NiclasvanEyk made their first contribution in [#10667](https://github.com/pydantic/pydantic/pull/10667)
* @mschoettle made their first contribution in [#10677](https://github.com/pydantic/pydantic/pull/10677)
* @Daraan made their first contribution in [#10713](https://github.com/pydantic/pydantic/pull/10713)
* @k4nar made their first contribution in [#10736](https://github.com/pydantic/pydantic/pull/10736)
* @UriyaHarpeness made their first contribution in [#10740](https://github.com/pydantic/pydantic/pull/10740)
* @frfahim made their first contribution in [#10727](https://github.com/pydantic/pydantic/pull/10727)

**Full Changelog**: https://github.com/pydantic/pydantic/compare/v2.9.2...v2.10.0

v2.10.0b1 (2024-11-06) (2024-11-06)

## What's Changed

### Packaging

* Bump `pydantic-core` to `v2.26.0` by @samuelcolvin in [#10748](https://github.com/pydantic/pydantic/pull/10748)

### New Features

* Support `fractions.Fraction` by @sydney-runkle in [#10318](https://github.com/pydantic/pydantic/pull/10318)
* Support `Hashable` for json validation by @sydney-runkle in [#10324](https://github.com/pydantic/pydantic/pull/10324)
* Add a `SocketPath` type for `linux` systems by @theunkn0wn1 in [#10378](https://github.com/pydantic/pydantic/pull/10378)
* Allow arbitrary refs in JSON schema `examples` by @sydney-runkle in [#10417](https://github.com/pydantic/pydantic/pull/10417)
* Support `defer_build` for Pydantic dataclasses by @Viicos in [#10313](https://github.com/pydantic/pydantic/pull/10313)
* Adding v1 / v2 incompatibility warning for nested v1 model by @sydney-runkle in [#10431](https://github.com/pydantic/pydantic/pull/10431)
* Add support for unpacked `TypedDict` to type hint variadic keyword arguments with `@validate_call` by @Viicos in [#10416](https://github.com/pydantic/pydantic/pull/10416)
* Support compiled patterns in `protected_namespaces` by @sydney-runkle in [#10522](https://github.com/pydantic/pydantic/pull/10522)
* Add support for `propertyNames` in JSON schema by @FlorianSW in [#10478](https://github.com/pydantic/pydantic/pull/10478)
* Adding `__replace__` protocol for Python 3.13+ support by @sydney-runkle in [#10596](https://github.com/pydantic/pydantic/pull/10596)
* Expose public `sort` method for JSON schema generation by @sydney-runkle in [#10595](https://github.com/pydantic/pydantic/pull/10595)
* Add runtime validation of `@validate_call` callable argument by @kc0506 in [#10627](https://github.com/pydantic/pydantic/pull/10627)
* Add `experimental_allow_partial` support by @samuelcolvin in [#10748](https://github.com/pydantic/pydantic/pull/10748)
* Support default factories taking validated data as an argument by @Viicos in [#10678](https://github.com/pydantic/pydantic/pull/10678)
* Allow subclassing `ValidationError` and `PydanticCustomError` by @Youssefares in [pydantic/pydantic-core#1413](https://github.com/pydantic/pydantic-core/pull/1413) - see release blog post for usage details.

### Changes

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

### Performance

* Schema cleaning: skip unnecessary copies during schema walking by @Viicos in [#10286](https://github.com/pydantic/pydantic/pull/10286)
* Refactor namespace logic for annotations evaluation by @Viicos in [#10530](https://github.com/pydantic/pydantic/pull/10530)
* Improve email regexp on edge cases by @AlekseyLobanov in [#10601](https://github.com/pydantic/pydantic/pull/10601)
* `CoreMetadata` refactor with an emphasis on documentation, schema build time performance, and reducing complexity by @sydney-runkle in [#10675](https://github.com/pydantic/pydantic/pull/10675)

### Fixes

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

## New Contributors

* @jakob-keller made their first contribution in [#10331](https://github.com/pydantic/pydantic/pull/10331)
* @MovisLi made their first contribution in [#10374](https://github.com/pydantic/pydantic/pull/10374)
* @joaopalmeiro made their first contribution in [#10405](https://github.com/pydantic/pydantic/pull/10405)
* @theunkn0wn1 made their first contribution in [#10378](https://github.com/pydantic/pydantic/pull/10378)
* @cdwilson made their first contribution in [#10412](https://github.com/pydantic/pydantic/pull/10412)
* @dlax made their first contribution in [#10421](https://github.com/pydantic/pydantic/pull/10421)
* @kschwab made their first contribution in [#10479](https://github.com/pydantic/pydantic/pull/10479)
* @santibreo made their first contribution in [#10453](https://github.com/pydantic/pydantic/pull/10453)
* @FlorianSW made their first contribution in [#10478](https://github.com/pydantic/pydantic/pull/10478)
* @tkasuz made their first contribution in [#10555](https://github.com/pydantic/pydantic/pull/10555)
* @AlekseyLobanov made their first contribution in [#10601](https://github.com/pydantic/pydantic/pull/10601)
* @NiclasvanEyk made their first contribution in [#10667](https://github.com/pydantic/pydantic/pull/10667)
* @mschoettle made their first contribution in [#10677](https://github.com/pydantic/pydantic/pull/10677)
* @Daraan made their first contribution in [#10713](https://github.com/pydantic/pydantic/pull/10713)
* @k4nar made their first contribution in [#10736](https://github.com/pydantic/pydantic/pull/10736)
* @UriyaHarpeness made their first contribution in [#10740](https://github.com/pydantic/pydantic/pull/10740)

**Full Changelog**: https://github.com/pydantic/pydantic/compare/v2.9.2...v2.10.0b1

v2.9.0 (2024-09-05) (2024-09-05)

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

Check out our [blog post](https://pydantic.dev/articles/pydantic-v2-9-release) to learn more about the release highlights!

## What's Changed

### Packaging

* Bump `ruff` to `v0.5.0` and `pyright` to `v1.1.369` by @sydney-runkle in [#9801](https://github.com/pydantic/pydantic/pull/9801)
* Bump `pydantic-extra-types` to `v2.9.0` by @sydney-runkle in [#9832](https://github.com/pydantic/pydantic/pull/9832)
* Support compatibility with `pdm v2.18.1` by @Viicos in [#10138](https://github.com/pydantic/pydantic/pull/10138)
* Bump `v1` version stub to `v1.10.18` by @sydney-runkle in [#10214](https://github.com/pydantic/pydantic/pull/10214)
* Bump `pydantic-core` to `v2.23.2` by @sydney-runkle in [#10311](https://github.com/pydantic/pydantic/pull/10311)

### New Features

* Add support for `ZoneInfo` by @Youssefares in [#9896](https://github.com/pydantic/pydantic/pull/9896)
* Add `Config.val_json_bytes` by @josh-newman in [#9770](https://github.com/pydantic/pydantic/pull/9770)
* Add DSN for Snowflake by @aditkumar72 in [#10128](https://github.com/pydantic/pydantic/pull/10128)
* Support `complex` number by @changhc in [#9654](https://github.com/pydantic/pydantic/pull/9654)
* Add support for `annotated_types.Not` by @aditkumar72 in [#10210](https://github.com/pydantic/pydantic/pull/10210)
* Allow `WithJsonSchema` to inject `$ref`s w/ `http` or `https` links by @dAIsySHEng1 in [#9863](https://github.com/pydantic/pydantic/pull/9863)
* Allow validators to customize validation JSON schema by @Viicos in [#10094](https://github.com/pydantic/pydantic/pull/10094)
* Support parametrized `PathLike` types by @nix010 in [#9764](https://github.com/pydantic/pydantic/pull/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](https://github.com/pydantic/pydantic-core/pull/1397)

### Changes

* Breaking Change: Merge `dict` type `json_schema_extra` by @sydney-runkle in [#9792](https://github.com/pydantic/pydantic/pull/9792)
  * For more info (how to replicate old behavior) on this change, see [here](https://docs.pydantic.dev/dev/concepts/json_schema/#merging-json_schema_extra)
* Refactor annotation injection for known (often generic) types by @sydney-runkle in [#9979](https://github.com/pydantic/pydantic/pull/9979)
* Move annotation compatibility errors to validation phase by @sydney-runkle in [#9999](https://github.com/pydantic/pydantic/pull/9999)
* Improve runtime errors for string constraints like `pattern` for incompatible types by @sydney-runkle in [#10158](https://github.com/pydantic/pydantic/pull/10158)
* Remove `'allOf'` JSON schema workarounds by @dpeachey in [#10029](https://github.com/pydantic/pydantic/pull/10029)
* Remove `typed_dict_cls` data from `CoreMetadata` by @sydney-runkle in [#10180](https://github.com/pydantic/pydantic/pull/10180)
* Deprecate passing a dict to the `Examples` class by @Viicos in [#10181](https://github.com/pydantic/pydantic/pull/10181)
* Remove `initial_metadata` from internal metadata construct by @sydney-runkle in [#10194](https://github.com/pydantic/pydantic/pull/10194)
* Use `re.Pattern.search` instead of `re.Pattern.match` for consistency with `rust` behavior by @tinez in [pydantic/pydantic-core#1368](https://github.com/pydantic/pydantic-core/pull/1368)
* Show value of wrongly typed data in `pydantic-core` serialization warning by @BoxyUwU in [pydantic/pydantic-core#1377](https://github.com/pydantic/pydantic-core/pull/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](https://github.com/pydantic/pydantic-core/pull/1411)
* Raise helpful warning when `self` isn't returned from model validator by @sydney-runkle in [#10255](https://github.com/pydantic/pydantic/pull/10255)

### Performance

* Initial start at improving import times for modules, using caching primarily by @sydney-runkle in [#10009](https://github.com/pydantic/pydantic/pull/10009)
* Using cached internal import for `BaseModel` by @sydney-runkle in [#10013](https://github.com/pydantic/pydantic/pull/10013)
* Simplify internal generics logic - remove generator overhead by @sydney-runkle in [#10059](https://github.com/pydantic/pydantic/pull/10059)
* Remove default module globals from types namespace by @sydney-runkle in [#10123](https://github.com/pydantic/pydantic/pull/10123)
* Performance boost: skip caching parent namespaces in most cases by @sydney-runkle in [#10113](https://github.com/pydantic/pydantic/pull/10113)
* Update ns stack with already copied ns by @sydney-runkle in [#10267](https://github.com/pydantic/pydantic/pull/10267)

#### Minor Internal Improvements
* ⚡️ Speed up `multiple_of_validator()` by 31% in `pydantic/_internal/_validators.py` by @misrasaurabh1 in [#9839](https://github.com/pydantic/pydantic/pull/9839)
* ⚡️ Speed up `ModelPrivateAttr.__set_name__()` by 18% in `pydantic/fields.py` by @misrasaurabh1 in [#9841](https://github.com/pydantic/pydantic/pull/9841)
* ⚡️ Speed up `dataclass()` by 7% in `pydantic/dataclasses.py` by @misrasaurabh1 in [#9843](https://github.com/pydantic/pydantic/pull/9843)
* ⚡️ Speed up function `_field_name_for_signature` by 37% in `pydantic/_internal/_signature.py` by @misrasaurabh1 in [#9951](https://github.com/pydantic/pydantic/pull/9951)
* ⚡️ Speed up method `GenerateSchema._unpack_refs_defs` by 26% in `pydantic/_internal/_generate_schema.py` by @misrasaurabh1 in [#9949](https://github.com/pydantic/pydantic/pull/9949)
* ⚡️ Speed up function `apply_each_item_validators` by 100% in `pydantic/_internal/_generate_schema.py` by @misrasaurabh1 in [#9950](https://github.com/pydantic/pydantic/pull/9950)
* ⚡️ Speed up method `ConfigWrapper.core_config` by 28% in `pydantic/_internal/_config.py` by @misrasaurabh1 in [#9953](https://github.com/pydantic/pydantic/pull/9953)

### Fixes

* Respect `use_enum_values` on `Literal` types by @kwint in [#9787](https://github.com/pydantic/pydantic/pull/9787)
* Prevent type error for exotic `BaseModel/RootModel` inheritance by @dmontagu in [#9913](https://github.com/pydantic/pydantic/pull/9913)
* Fix typing issue with field_validator-decorated methods by @dmontagu in [#9914](https://github.com/pydantic/pydantic/pull/9914)
* Replace `str` type annotation with `Any` in validator factories in documentation on validators by @maximilianfellhuber in [#9885](https://github.com/pydantic/pydantic/pull/9885)
* Fix `ComputedFieldInfo.wrapped_property` pointer when a property setter is assigned by @tlambert03 in [#9892](https://github.com/pydantic/pydantic/pull/9892)
* Fix recursive typing of `main.IncEnx` by @tlambert03 in [#9924](https://github.com/pydantic/pydantic/pull/9924)
* Allow usage of `type[Annotated[...]]` by @Viicos in [#9932](https://github.com/pydantic/pydantic/pull/9932)
* `mypy` plugin: handle frozen fields on a per-field basis by @dmontagu in [#9935](https://github.com/pydantic/pydantic/pull/9935)
* Fix typo in `invalid-annotated-type` error code by @sydney-runkle in [#9948](https://github.com/pydantic/pydantic/pull/9948)
* Simplify schema generation for `uuid`, `url`, and `ip` types by @sydney-runkle in [#9975](https://github.com/pydantic/pydantic/pull/9975)
* Move `date` schemas to `_generate_schema.py` by @sydney-runkle in [#9976](https://github.com/pydantic/pydantic/pull/9976)
* Move `decimal.Decimal` validation to `_generate_schema.py` by @sydney-runkle in [#9977](https://github.com/pydantic/pydantic/pull/9977)
* Simplify IP address schema in `_std_types_schema.py` by @sydney-runkle in [#9959](https://github.com/pydantic/pydantic/pull/9959)
* Fix type annotations for some potentially generic `GenerateSchema.match_type` options by @sydney-runkle in [#9961](https://github.com/pydantic/pydantic/pull/9961)
* Add class name to "has conflict" warnings by @msabramo in [#9964](https://github.com/pydantic/pydantic/pull/9964)
* Fix `dataclass` ignoring `default_factory` passed in Annotated by @kc0506 in [#9971](https://github.com/pydantic/pydantic/pull/9971)
* Fix `Sequence` ignoring `discriminator` by @kc0506 in [#9980](https://github.com/pydantic/pydantic/pull/9980)
* Fix typing for `IPvAnyAddress` and `IPvAnyInterface` by @haoyun in [#9990](https://github.com/pydantic/pydantic/pull/9990)
* Fix false positives on v1 models in `mypy` plugin for `from_orm` check requiring from_attributes=True config by @radekwlsk in [#9938](https://github.com/pydantic/pydantic/pull/9938)
* Apply `strict=True` to `__init__` in `mypy` plugin by @kc0506 in [#9998](https://github.com/pydantic/pydantic/pull/9998)
* Refactor application of `deque` annotations by @sydney-runkle in [#10018](https://github.com/pydantic/pydantic/pull/10018)
* Raise a better user error when failing to evaluate a forward reference by @Viicos in [#10030](https://github.com/pydantic/pydantic/pull/10030)
* Fix evaluation of `__pydantic_extra__` annotation in specific circumstances by @Viicos in [#10070](https://github.com/pydantic/pydantic/pull/10070)
* Fix `frozen` enforcement for `dataclasses` by @sydney-runkle in [#10066](https://github.com/pydantic/pydantic/pull/10066)
* Remove logic to handle unused `__get_pydantic_core_schema__` signature by @Viicos in [#10075](https://github.com/pydantic/pydantic/pull/10075)
* Use `is_annotated` consistently by @Viicos in [#10095](https://github.com/pydantic/pydantic/pull/10095)
* Fix `PydanticDeprecatedSince26` typo by @kc0506 in [#10101](https://github.com/pydantic/pydantic/pull/10101)
* Improve `pyright` tests, refactor model decorators signatures by @Viicos in [#10092](https://github.com/pydantic/pydantic/pull/10092)
* Fix `ip` serialization logic by @sydney-runkle in [#10112](https://github.com/pydantic/pydantic/pull/10112)
* Warn when frozen defined twice for `dataclasses` by @mochi22 in [#10082](https://github.com/pydantic/pydantic/pull/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](https://github.com/pydantic/pydantic/pull/10121)
* Fix `ImportString` special cases by @sydney-runkle in [#10137](https://github.com/pydantic/pydantic/pull/10137)
* Blacklist default globals to support exotic user code with `__` prefixed annotations by @sydney-runkle in [#10136](https://github.com/pydantic/pydantic/pull/10136)
* Handle `nullable` schemas with `serialization` schema available during JSON Schema generation by @Viicos in [#10132](https://github.com/pydantic/pydantic/pull/10132)
* Reorganize `BaseModel` annotations by @kc0506 in [#10110](https://github.com/pydantic/pydantic/pull/10110)
* Fix core schema simplification when serialization schemas are involved in specific scenarios by @Viicos in [#10155](https://github.com/pydantic/pydantic/pull/10155)
* Add support for stringified annotations when using `PrivateAttr` with `Annotated` by @Viicos in [#10157](https://github.com/pydantic/pydantic/pull/10157)
* Fix JSON Schema `number` type for literal and enum schemas by @Viicos in [#10172](https://github.com/pydantic/pydantic/pull/10172)
* Fix JSON Schema generation of fields with plain validators in serialization mode by @Viicos in [#10167](https://github.com/pydantic/pydantic/pull/10167)
* Fix invalid JSON Schemas being generated for functions in certain scenarios by @Viicos in [#10188](https://github.com/pydantic/pydantic/pull/10188)
* Make sure generated JSON Schemas are valid in tests by @Viicos in [#10182](https://github.com/pydantic/pydantic/pull/10182)
* Fix key error with custom serializer by @sydney-runkle in [#10200](https://github.com/pydantic/pydantic/pull/10200)
* Add 'wss' for allowed schemes in NatsDsn by @swelborn in [#10224](https://github.com/pydantic/pydantic/pull/10224)
* Fix `Mapping` and `MutableMapping` annotations to use mapping schema instead of dict schema by @sydney-runkle in [#10020](https://github.com/pydantic/pydantic/pull/10020)
* Fix JSON Schema generation for constrained dates by @Viicos in [#10185](https://github.com/pydantic/pydantic/pull/10185)
* Fix discriminated union bug regression when using enums by @kfreezen in [pydantic/pydantic-core#1286](https://github.com/pydantic/pydantic-core/pull/1286)
* Fix `field_serializer` with computed field when using `*` by @nix010 in [pydantic/pydantic-core#1349](https://github.com/pydantic/pydantic-core/pull/1349)
* Try each option in `Union` serializer before inference by @sydney-runkle in [pydantic/pydantic-core#1398](https://github.com/pydantic/pydantic-core/pull/1398)
* Fix `float` serialization behavior in `strict` mode by @sydney-runkle in [pydantic/pydantic-core#1400](https://github.com/pydantic/pydantic-core/pull/1400)
* Introduce `exactness` into Decimal validation logic to improve union validation behavior by @sydney-runkle in in [pydantic/pydantic-core#1405](https://github.com/pydantic/pydantic-core/pull/1405)
* Fix new warnings assertions to use `pytest.warns()` by @mgorny in [#10241](https://github.com/pydantic/pydantic/pull/10241)
* Fix a crash when cleaning the namespace in `ModelMetaclass` by @Viicos in [#10242](https://github.com/pydantic/pydantic/pull/10242)
* Fix parent namespace issue with model rebuilds by @sydney-runkle in [#10257](https://github.com/pydantic/pydantic/pull/10257)
* Remove defaults filter for namespace by @sydney-runkle in [#10261](https://github.com/pydantic/pydantic/pull/10261)
* Use identity instead of equality after validating model in `__init__` by @Viicos in [#10264](https://github.com/pydantic/pydantic/pull/10264)
* Support `BigInt` serialization for `int` subclasses by @kxx317 in [pydantic/pydantic-core#1417](https://github.com/pydantic/pydantic-core/pull/1417)
* Support signature for wrap validators without `info` by @sydney-runkle in [#10277](https://github.com/pydantic/pydantic/pull/10277)
* Ensure `__pydantic_complete__` is set when rebuilding `dataclasses` by @Viicos in [#10291](https://github.com/pydantic/pydantic/pull/10291)
* Respect `schema_generator` config value in `TypeAdapter` by @sydney-runkle in [#10300](https://github.com/pydantic/pydantic/pull/10300)

## New Contributors

### `pydantic`

* @kwint made their first contribution in [#9787](https://github.com/pydantic/pydantic/pull/9787)
* @seekinginfiniteloop made their first contribution in [#9822](https://github.com/pydantic/pydantic/pull/9822)
* @a-alexander made their first contribution in [#9848](https://github.com/pydantic/pydantic/pull/9848)
* @maximilianfellhuber made their first contribution in [#9885](https://github.com/pydantic/pydantic/pull/9885)
* @karmaBonfire made their first contribution in [#9945](https://github.com/pydantic/pydantic/pull/9945)
* @s-rigaud made their first contribution in [#9958](https://github.com/pydantic/pydantic/pull/9958)
* @msabramo made their first contribution in [#9964](https://github.com/pydantic/pydantic/pull/9964)
* @DimaCybr made their first contribution in [#9972](https://github.com/pydantic/pydantic/pull/9972)
* @kc0506 made their first contribution in [#9971](https://github.com/pydantic/pydantic/pull/9971)
* @haoyun made their first contribution in [#9990](https://github.com/pydantic/pydantic/pull/9990)
* @radekwlsk made their first contribution in [#9938](https://github.com/pydantic/pydantic/pull/9938)
* @dpeachey made their first contribution in [#10029](https://github.com/pydantic/pydantic/pull/10029)
* @BoxyUwU made their first contribution in [#10085](https://github.com/pydantic/pydantic/pull/10085)
* @mochi22 made their first contribution in [#10082](https://github.com/pydantic/pydantic/pull/10082)
* @aditkumar72 made their first contribution in [#10128](https://github.com/pydantic/pydantic/pull/10128)
* @changhc made their first contribution in [#9654](https://github.com/pydantic/pydantic/pull/9654)
* @insumanth made their first contribution in [#10229](https://github.com/pydantic/pydantic/pull/10229)
* @AdolfoVillalobos made their first contribution in [#10240](https://github.com/pydantic/pydantic/pull/10240)
* @bllchmbrs made their first contribution in [#10270](https://github.com/pydantic/pydantic/pull/10270)

### `pydantic-core`

* @kfreezen made their first contribution in [pydantic/pydantic-core#1286](https://github.com/pydantic/pydantic-core/pull/1286)
* @tinez made their first contribution in [pydantic/pydantic-core#1368](https://github.com/pydantic/pydantic-core/pull/1368)
* @fft001 made their first contribution in [pydantic/pydantic-core#1362](https://github.com/pydantic/pydantic-core/pull/1362)
* @nix010 made their first contribution in [pydantic/pydantic-core#1349](https://github.com/pydantic/pydantic-core/pull/1349)
* @BoxyUwU made their first contribution in [pydantic/pydantic-core#1379](https://github.com/pydantic/pydantic-core/pull/1379)
* @candleindark made their first contribution in [pydantic/pydantic-core#1404](https://github.com/pydantic/pydantic-core/pull/1404)
* @changhc made their first contribution in [pydantic/pydantic-core#1331](https://github.com/pydantic/pydantic-core/pull/1331)

v2.9.0b1 (2024-08-26) (2024-08-26)

## What's Changed

### Packaging

* Bump `ruff` to `v0.5.0` and `pyright` to `v1.1.369` by @sydney-runkle in [#9801](https://github.com/pydantic/pydantic/pull/9801)
* Bump `pydantic-extra-types` to `v2.9.0` by @sydney-runkle in [#9832](https://github.com/pydantic/pydantic/pull/9832)
* Support compatibility with `pdm v2.18.1` by @Viicos in [#10138](https://github.com/pydantic/pydantic/pull/10138)
* Bump `pydantic-core` to v2.23.0 by @sydney-runkle in [#10180](https://github.com/pydantic/pydantic/pull/10180)
* Bump `v1` version stub to `v1.10.18` by @sydney-runkle in [#10214](https://github.com/pydantic/pydantic/pull/10214)

### New Features

* Add support for `ZoneInfo` by @Youssefares in [#9896](https://github.com/pydantic/pydantic/pull/9896)
* Add `Config.val_json_bytes` by @josh-newman in [#9770](https://github.com/pydantic/pydantic/pull/9770)
* Add DSN for Snowflake by @aditkumar72 in [#10128](https://github.com/pydantic/pydantic/pull/10128)
* Support `complex` number by @changhc in [#9654](https://github.com/pydantic/pydantic/pull/9654)
* Add support for `annotated_types.Not` by @aditkumar72 in [#10210](https://github.com/pydantic/pydantic/pull/10210)
* Allow `WithJsonSchema` to inject `$ref`s w/ `http` or `https` links by @dAIsySHEng1 in [#9863](https://github.com/pydantic/pydantic/pull/9863)
* Allow validators to customize validation JSON schema by @Viicos in [#10094](https://github.com/pydantic/pydantic/pull/10094)
* Support parametrized `PathLike` types by @nix010 in [#9764](https://github.com/pydantic/pydantic/pull/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](https://github.com/pydantic/pydantic-core/pull/1397)

### Changes

* Breaking Change: Merge `dict` type `json_schema_extra` by @sydney-runkle in [#9792](https://github.com/pydantic/pydantic/pull/9792)
  * For more info (how to replicate old behavior) on this change, see [here](https://docs.pydantic.dev/dev/concepts/json_schema/#merging-json_schema_extra)
* Refactor annotation injection for known (often generic) types by @sydney-runkle in [#9979](https://github.com/pydantic/pydantic/pull/9979)
* Move annotation compatibility errors to validation phase by @sydney-runkle in [#9999](https://github.com/pydantic/pydantic/pull/9999)
* Improve runtime errors for string constraints like `pattern` for incompatible types by @sydney-runkle in [#10158](https://github.com/pydantic/pydantic/pull/10158)
* Remove `'allOf'` JSON schema workarounds by @dpeachey in [#10029](https://github.com/pydantic/pydantic/pull/10029)
* Remove `typed_dict_cls` data from `CoreMetadata` by @sydney-runkle in [#10180](https://github.com/pydantic/pydantic/pull/10180)
* Deprecate passing a dict to the `Examples` class by @Viicos in [#10181](https://github.com/pydantic/pydantic/pull/10181)
* Remove `initial_metadata` from internal metadata construct by @sydney-runkle in [#10194](https://github.com/pydantic/pydantic/pull/10194)
* Use `re.Pattern.search` instead of `re.Pattern.match` for consistency with `rust` behavior by @tinez in [pydantic/pydantic-core#1368](https://github.com/pydantic/pydantic-core/pull/1368)
* Show value of wrongly typed data in `pydantic-core` serialization warning by @BoxyUwU in [pydantic/pydantic-core#1377](https://github.com/pydantic/pydantic-core/pull/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](https://github.com/pydantic/pydantic-core/pull/1411)

### Performance

* Initial start at improving import times for modules, using caching primarily by @sydney-runkle in [#10009](https://github.com/pydantic/pydantic/pull/10009)
* Using cached internal import for `BaseModel` by @sydney-runkle in [#10013](https://github.com/pydantic/pydantic/pull/10013)
* Simplify internal generics logic - remove generator overhead by @sydney-runkle in [#10059](https://github.com/pydantic/pydantic/pull/10059)
* Remove default module globals from types namespace by @sydney-runkle in [#10123](https://github.com/pydantic/pydantic/pull/10123)
* Performance boost: skip caching parent namespaces in most cases by @sydney-runkle in [#10113](https://github.com/pydantic/pydantic/pull/10113)

#### Minor Internal Improvements

* ⚡️ Speed up `multiple_of_validator()` by 31% in `pydantic/_internal/_validators.py` by @misrasaurabh1 in [#9839](https://github.com/pydantic/pydantic/pull/9839)
* ⚡️ Speed up `ModelPrivateAttr.__set_name__()` by 18% in `pydantic/fields.py` by @misrasaurabh1 in [#9841](https://github.com/pydantic/pydantic/pull/9841)
* ⚡️ Speed up `dataclass()` by 7% in `pydantic/dataclasses.py` by @misrasaurabh1 in [#9843](https://github.com/pydantic/pydantic/pull/9843)
* ⚡️ Speed up function `_field_name_for_signature` by 37% in `pydantic/_internal/_signature.py` by @misrasaurabh1 in [#9951](https://github.com/pydantic/pydantic/pull/9951)
* ⚡️ Speed up method `GenerateSchema._unpack_refs_defs` by 26% in `pydantic/_internal/_generate_schema.py` by @misrasaurabh1 in [#9949](https://github.com/pydantic/pydantic/pull/9949)
* ⚡️ Speed up function `apply_each_item_validators` by 100% in `pydantic/_internal/_generate_schema.py` by @misrasaurabh1 in [#9950](https://github.com/pydantic/pydantic/pull/9950)
* ⚡️ Speed up method `ConfigWrapper.core_config` by 28% in `pydantic/_internal/_config.py` by @misrasaurabh1 in [#9953](https://github.com/pydantic/pydantic/pull/9953)

### Fixes

* Respect `use_enum_values` on `Literal` types by @kwint in [#9787](https://github.com/pydantic/pydantic/pull/9787)
* Prevent type error for exotic `BaseModel/RootModel` inheritance by @dmontagu in [#9913](https://github.com/pydantic/pydantic/pull/9913)
* Fix typing issue with field_validator-decorated methods by @dmontagu in [#9914](https://github.com/pydantic/pydantic/pull/9914)
* Replace `str` type annotation with `Any` in validator factories in documentation on validators by @maximilianfellhuber in [#9885](https://github.com/pydantic/pydantic/pull/9885)
* Fix `ComputedFieldInfo.wrapped_property` pointer when a property setter is assigned by @tlambert03 in [#9892](https://github.com/pydantic/pydantic/pull/9892)
* Fix recursive typing of `main.IncEnx` by @tlambert03 in [#9924](https://github.com/pydantic/pydantic/pull/9924)
* Allow usage of `type[Annotated[...]]` by @Viicos in [#9932](https://github.com/pydantic/pydantic/pull/9932)
* `mypy` plugin: handle frozen fields on a per-field basis by @dmontagu in [#9935](https://github.com/pydantic/pydantic/pull/9935)
* Fix typo in `invalid-annotated-type` error code by @sydney-runkle in [#9948](https://github.com/pydantic/pydantic/pull/9948)
* Simplify schema generation for `uuid`, `url`, and `ip` types by @sydney-runkle in [#9975](https://github.com/pydantic/pydantic/pull/9975)
* Move `date` schemas to `_generate_schema.py` by @sydney-runkle in [#9976](https://github.com/pydantic/pydantic/pull/9976)
* Move `decimal.Decimal` validation to `_generate_schema.py` by @sydney-runkle in [#9977](https://github.com/pydantic/pydantic/pull/9977)
* Simplify IP address schema in `_std_types_schema.py` by @sydney-runkle in [#9959](https://github.com/pydantic/pydantic/pull/9959)
* Fix type annotations for some potentially generic `GenerateSchema.match_type` options by @sydney-runkle in [#9961](https://github.com/pydantic/pydantic/pull/9961)
* Add class name to "has conflict" warnings by @msabramo in [#9964](https://github.com/pydantic/pydantic/pull/9964)
* Fix `dataclass` ignoring `default_factory` passed in Annotated by @kc0506 in [#9971](https://github.com/pydantic/pydantic/pull/9971)
* Fix `Sequence` ignoring `discriminator` by @kc0506 in [#9980](https://github.com/pydantic/pydantic/pull/9980)
* Fix typing for `IPvAnyAddress` and `IPvAnyInterface` by @haoyun in [#9990](https://github.com/pydantic/pydantic/pull/9990)
* Fix false positives on v1 models in `mypy` plugin for `from_orm` check requiring from_attributes=True config by @radekwlsk in [#9938](https://github.com/pydantic/pydantic/pull/9938)
* Apply `strict=True` to `__init__` in `mypy` plugin by @kc0506 in [#9998](https://github.com/pydantic/pydantic/pull/9998)
* Refactor application of `deque` annotations by @sydney-runkle in [#10018](https://github.com/pydantic/pydantic/pull/10018)
* Raise a better user error when failing to evaluate a forward reference by @Viicos in [#10030](https://github.com/pydantic/pydantic/pull/10030)
* Fix evaluation of `__pydantic_extra__` annotation in specific circumstances by @Viicos in [#10070](https://github.com/pydantic/pydantic/pull/10070)
* Fix `frozen` enforcement for `dataclasses` by @sydney-runkle in [#10066](https://github.com/pydantic/pydantic/pull/10066)
* Remove logic to handle unused `__get_pydantic_core_schema__` signature by @Viicos in [#10075](https://github.com/pydantic/pydantic/pull/10075)
* Use `is_annotated` consistently by @Viicos in [#10095](https://github.com/pydantic/pydantic/pull/10095)
* Fix `PydanticDeprecatedSince26` typo by @kc0506 in [#10101](https://github.com/pydantic/pydantic/pull/10101)
* Improve `pyright` tests, refactor model decorators signatures by @Viicos in [#10092](https://github.com/pydantic/pydantic/pull/10092)
* Fix `ip` serialization logic by @sydney-runkle in [#10112](https://github.com/pydantic/pydantic/pull/10112)
* Warn when frozen defined twice for `dataclasses` by @mochi22 in [#10082](https://github.com/pydantic/pydantic/pull/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](https://github.com/pydantic/pydantic/pull/10121)
* Fix `ImportString` special cases by @sydney-runkle in [#10137](https://github.com/pydantic/pydantic/pull/10137)
* Blacklist default globals to support exotic user code with `__` prefixed annotations by @sydney-runkle in [#10136](https://github.com/pydantic/pydantic/pull/10136)
* Handle `nullable` schemas with `serialization` schema available during JSON Schema generation by @Viicos in [#10132](https://github.com/pydantic/pydantic/pull/10132)
* Reorganize `BaseModel` annotations by @kc0506 in [#10110](https://github.com/pydantic/pydantic/pull/10110)
* Fix core schema simplification when serialization schemas are involved in specific scenarios by @Viicos in [#10155](https://github.com/pydantic/pydantic/pull/10155)
* Add support for stringified annotations when using `PrivateAttr` with `Annotated` by @Viicos in [#10157](https://github.com/pydantic/pydantic/pull/10157)
* Fix JSON Schema `number` type for literal and enum schemas by @Viicos in [#10172](https://github.com/pydantic/pydantic/pull/10172)
* Fix JSON Schema generation of fields with plain validators in serialization mode by @Viicos in [#10167](https://github.com/pydantic/pydantic/pull/10167)
* Fix invalid JSON Schemas being generated for functions in certain scenarios by @Viicos in [#10188](https://github.com/pydantic/pydantic/pull/10188)
* Make sure generated JSON Schemas are valid in tests by @Viicos in [#10182](https://github.com/pydantic/pydantic/pull/10182)
* Fix key error with custom serializer by @sydney-runkle in [#10200](https://github.com/pydantic/pydantic/pull/10200)
* Add 'wss' for allowed schemes in NatsDsn by @swelborn in [#10224](https://github.com/pydantic/pydantic/pull/10224)
* Fix `Mapping` and `MutableMapping` annotations to use mapping schema instead of dict schema by @sydney-runkle in [#10020](https://github.com/pydantic/pydantic/pull/10020)
* Fix JSON Schema generation for constrained dates by @Viicos in [#10185](https://github.com/pydantic/pydantic/pull/10185)
* Fix discriminated union bug regression when using enums by @kfreezen in [pydantic/pydantic-core#1286](https://github.com/pydantic/pydantic-core/pull/1286)
* Fix `field_serializer` with computed field when using `*` by @nix010 in [pydantic/pydantic-core#1349](https://github.com/pydantic/pydantic-core/pull/1349)
* Try each option in `Union` serializer before inference by @sydney-runkle in [pydantic/pydantic-core#1398](https://github.com/pydantic/pydantic-core/pull/1398)
* Fix `float` serialization behavior in `strict` mode by @sydney-runkle in [pydantic/pydantic-core#1400](https://github.com/pydantic/pydantic-core/pull/1400)
* Introduce `exactness` into Decimal validation logic to improve union validation behavior by @sydney-runkle in in [pydantic/pydantic-core#1405](https://github.com/pydantic/pydantic-core/pull/1405)

## New Contributors

### `pydantic`

* @kwint made their first contribution in [#9787](https://github.com/pydantic/pydantic/pull/9787)
* @seekinginfiniteloop made their first contribution in [#9822](https://github.com/pydantic/pydantic/pull/9822)
* @a-alexander made their first contribution in [#9848](https://github.com/pydantic/pydantic/pull/9848)
* @maximilianfellhuber made their first contribution in [#9885](https://github.com/pydantic/pydantic/pull/9885)
* @karmaBonfire made their first contribution in [#9945](https://github.com/pydantic/pydantic/pull/9945)
* @s-rigaud made their first contribution in [#9958](https://github.com/pydantic/pydantic/pull/9958)
* @msabramo made their first contribution in [#9964](https://github.com/pydantic/pydantic/pull/9964)
* @DimaCybr made their first contribution in [#9972](https://github.com/pydantic/pydantic/pull/9972)
* @kc0506 made their first contribution in [#9971](https://github.com/pydantic/pydantic/pull/9971)
* @haoyun made their first contribution in [#9990](https://github.com/pydantic/pydantic/pull/9990)
* @radekwlsk made their first contribution in [#9938](https://github.com/pydantic/pydantic/pull/9938)
* @dpeachey made their first contribution in [#10029](https://github.com/pydantic/pydantic/pull/10029)
* @BoxyUwU made their first contribution in [#10085](https://github.com/pydantic/pydantic/pull/10085)
* @mochi22 made their first contribution in [#10082](https://github.com/pydantic/pydantic/pull/10082)
* @aditkumar72 made their first contribution in [#10128](https://github.com/pydantic/pydantic/pull/10128)
* @changhc made their first contribution in [#9654](https://github.com/pydantic/pydantic/pull/9654)
* @insumanth made their first contribution in [#10229](https://github.com/pydantic/pydantic/pull/10229)


### `pydantic-core`

* @kfreezen made their first contribution in [pydantic/pydantic-core#1286](https://github.com/pydantic/pydantic-core/pull/1286)
* @tinez made their first contribution in [pydantic/pydantic-core#1368](https://github.com/pydantic/pydantic-core/pull/1368)
* @fft001 made their first contribution in [pydantic/pydantic-core#1362](https://github.com/pydantic/pydantic-core/pull/1362)
* @nix010 made their first contribution in [pydantic/pydantic-core#1349](https://github.com/pydantic/pydantic-core/pull/1349)
* @BoxyUwU made their first contribution in [pydantic/pydantic-core#1379](https://github.com/pydantic/pydantic-core/pull/1379)
* @candleindark made their first contribution in [pydantic/pydantic-core#1404](https://github.com/pydantic/pydantic-core/pull/1404)
* @changhc made their first contribution in [pydantic/pydantic-core#1331](https://github.com/pydantic/pydantic-core/pull/1331)

**Full Changelog**: https://github.com/pydantic/pydantic/compare/v2.8.1...v2.8.2

v2.8.0 (2024-07-01) (2024-07-01)

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

Check out our [blog post](https://pydantic.dev/articles/pydantic-v2-8-release) to learn more about the release highlights!

## What's Changed

### Packaging

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

### New Features

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

### Changes

* Add warning when "alias" is set in ignored `Annotated` field by @nix010 in [#9170](https://github.com/pydantic/pydantic/pull/9170)
* Support serialization of some serializable defaults in JSON schema by @sydney-runkle in [#9624](https://github.com/pydantic/pydantic/pull/9624)
* Relax type specification for `__validators__` values in `create_model` by @sydney-runkle in [#9697](https://github.com/pydantic/pydantic/pull/9697)
* **Breaking Change:** Improve `smart` union matching logic by @sydney-runkle in [pydantic/pydantic-core#1322](https://github.com/pydantic/pydantic-core/pull/1322)
You can read more about our `smart` union matching logic [here](https://docs.pydantic.dev/dev/concepts/unions/#smart-mode). 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](https://github.com/pydantic/pydantic/pull/9653)
* ⚡️ Speed up `_get_all_json_refs()` by 34% in `pydantic/json_schema.py` by @misrasaurabh1 in [#9650](https://github.com/pydantic/pydantic/pull/9650)
* ⚡️ Speed up `is_pydantic_dataclass()` by 41% in `pydantic/dataclasses.py` by @misrasaurabh1 in [#9652](https://github.com/pydantic/pydantic/pull/9652)
* ⚡️ Speed up `to_snake()` by 27% in `pydantic/alias_generators.py` by @misrasaurabh1 in [#9747](https://github.com/pydantic/pydantic/pull/9747)
* ⚡️ Speed up `unwrap_wrapped_function()` by 93% in `pydantic/_internal/_decorators.py` by @misrasaurabh1 in [#9727](https://github.com/pydantic/pydantic/pull/9727)

### Fixes

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

## New Contributors

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

Full Changelog: https://github.com/pydantic/pydantic/compare/v2.7.4...v2.8.0/

v2.8.0b1 (2024-06-27) (2024-06-27)

## What's Changed

### Packaging

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

### New Features

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

### Changes

* Add warning when "alias" is set in ignored `Annotated` field by @nix010 in [#9170](https://github.com/pydantic/pydantic/pull/9170)
* Support serialization of some serializable defaults in JSON schema by @sydney-runkle in [#9624](https://github.com/pydantic/pydantic/pull/9624)
* Relax type specification for `__validators__` values in `create_model` by @sydney-runkle in [#9697](https://github.com/pydantic/pydantic/pull/9697)
* **Breaking Change:** Improve `smart` union matching logic by @sydney-runkle in [pydantic/pydantic-core#1322](https://github.com/pydantic/pydantic-core/pull/1322)
You can read more about our `smart` union matching logic [here](https://docs.pydantic.dev/dev/concepts/unions/#smart-mode). 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](https://github.com/pydantic/pydantic/pull/9653)
* ⚡️ Speed up `_get_all_json_refs()` by 34% in `pydantic/json_schema.py` by @misrasaurabh1 in [#9650](https://github.com/pydantic/pydantic/pull/9650)
* ⚡️ Speed up `is_pydantic_dataclass()` by 41% in `pydantic/dataclasses.py` by @misrasaurabh1 in [#9652](https://github.com/pydantic/pydantic/pull/9652)
* ⚡️ Speed up `to_snake()` by 27% in `pydantic/alias_generators.py` by @misrasaurabh1 in [#9747](https://github.com/pydantic/pydantic/pull/9747)
* ⚡️ Speed up `unwrap_wrapped_function()` by 93% in `pydantic/_internal/_decorators.py` by @misrasaurabh1 in [#9727](https://github.com/pydantic/pydantic/pull/9727)

### Fixes

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

## New Contributors

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

Full Changelog: https://github.com/pydantic/pydantic/compare/v2.7.4...v2.8.0b1/

🚀 pydantic/pydantic - Release Notes

v2.11.2 2025-04-03 (2025-04-03)

v2.11.1 2025-03-28 (2025-03-28)

v2.11.0 2025-03-27 (2025-03-27)

v2.11.0b2 2025-03-17 (2025-03-17)

v2.11.0b1 2025-03-06 (2025-03-06)

v2.11.0a2 2025-02-10 (2025-02-10)

v2.11.0a1 2025-01-30 (2025-01-30)

v2.10.6 2025-01-23 (2025-01-24)

v2.10.5 2024-12-18 (2025-01-10)

v1.10.20 2025-01-07 (2025-01-08)

v2.10.4 2024-12-18 (2024-12-18)

v2.10.3 2024-12-03 (2024-12-03)

v2.10.2 2024-11-26 (2024-11-26)

v2.10.1 2024-11-21 (2024-11-22)

v2.10.0 2024-11-20 (2024-11-20)

v2.10.0b2 2024-11-13 (2024-11-13)

v2.10.0b1 (2024-11-06) (2024-11-06)

v1.10.19 (2024-11-06) (2024-11-06)

v2.9.2 (2024-09-17) (2024-09-17)

v2.9.1 (2024-09-09) (2024-09-09)

v2.9.0 (2024-09-05) (2024-09-05)

v2.9.0b2 (2024-08-30) (2024-08-31)

v2.9.0b1 (2024-08-26) (2024-08-26)

v1.10.18 (2024-08-22) (2024-08-22)

v2.8.2 (2024-07-03) (2024-07-04)

v2.8.1 (2024-07-03) (2024-07-03)

v2.8.0 (2024-07-01) (2024-07-01)

v2.8.0b1 (2024-06-27) (2024-06-27)

v1.10.17 (2024-06-20) (2024-06-20)

v2.7.4 (2024-06-12) (2024-06-12)