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Metadata-Version: 2.4
Name: pydantic
Version: 2.11.3
Summary: Data validation using Python type hints
Project-URL: Homepage, https://github.com/pydantic/pydantic
Project-URL: Documentation, https://docs.pydantic.dev
Project-URL: Funding, https://github.com/sponsors/samuelcolvin
Project-URL: Source, https://github.com/pydantic/pydantic
Project-URL: Changelog, https://docs.pydantic.dev/latest/changelog/
Author-email: Samuel Colvin <s@muelcolvin.com>, Eric Jolibois <em.jolibois@gmail.com>, Hasan Ramezani <hasan.r67@gmail.com>, Adrian Garcia Badaracco <1755071+adriangb@users.noreply.github.com>, Terrence Dorsey <terry@pydantic.dev>, David Montague <david@pydantic.dev>, Serge Matveenko <lig@countzero.co>, Marcelo Trylesinski <marcelotryle@gmail.com>, Sydney Runkle <sydneymarierunkle@gmail.com>, David Hewitt <mail@davidhewitt.io>, Alex Hall <alex.mojaki@gmail.com>, Victorien Plot <contact@vctrn.dev>
License-Expression: MIT
License-File: LICENSE
Classifier: Development Status :: 5 - Production/Stable
Classifier: Framework :: Hypothesis
Classifier: Framework :: Pydantic
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Information Technology
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: 3.12
Classifier: Programming Language :: Python :: 3.13
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Internet
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Requires-Python: >=3.9
Requires-Dist: annotated-types>=0.6.0
Requires-Dist: pydantic-core==2.33.1
Requires-Dist: typing-extensions>=4.12.2
Requires-Dist: typing-inspection>=0.4.0
Provides-Extra: email
Requires-Dist: email-validator>=2.0.0; extra == 'email'
Provides-Extra: timezone
Requires-Dist: tzdata; (python_version >= '3.9' and platform_system == 'Windows') and extra == 'timezone'
Description-Content-Type: text/markdown
# Pydantic
[![CI](https://img.shields.io/github/actions/workflow/status/pydantic/pydantic/ci.yml?branch=main&logo=github&label=CI)](https://github.com/pydantic/pydantic/actions?query=event%3Apush+branch%3Amain+workflow%3ACI)
[![Coverage](https://coverage-badge.samuelcolvin.workers.dev/pydantic/pydantic.svg)](https://coverage-badge.samuelcolvin.workers.dev/redirect/pydantic/pydantic)
[![pypi](https://img.shields.io/pypi/v/pydantic.svg)](https://pypi.python.org/pypi/pydantic)
[![CondaForge](https://img.shields.io/conda/v/conda-forge/pydantic.svg)](https://anaconda.org/conda-forge/pydantic)
[![downloads](https://static.pepy.tech/badge/pydantic/month)](https://pepy.tech/project/pydantic)
[![versions](https://img.shields.io/pypi/pyversions/pydantic.svg)](https://github.com/pydantic/pydantic)
[![license](https://img.shields.io/github/license/pydantic/pydantic.svg)](https://github.com/pydantic/pydantic/blob/main/LICENSE)
[![Pydantic v2](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/pydantic/pydantic/main/docs/badge/v2.json)](https://docs.pydantic.dev/latest/contributing/#badges)
[![llms.txt](https://img.shields.io/badge/llms.txt-green)](https://docs.pydantic.dev/latest/llms.txt)
Data validation using Python type hints.
Fast and extensible, Pydantic plays nicely with your linters/IDE/brain.
Define how data should be in pure, canonical Python 3.9+; validate it with Pydantic.
## Pydantic Logfire :fire:
We've recently launched Pydantic Logfire to help you monitor your applications.
[Learn more](https://pydantic.dev/articles/logfire-announcement)
## Pydantic V1.10 vs. V2
Pydantic V2 is a ground-up rewrite that offers many new features, performance improvements, and some breaking changes compared to Pydantic V1.
If you're using Pydantic V1 you may want to look at the
[pydantic V1.10 Documentation](https://docs.pydantic.dev/) or,
[`1.10.X-fixes` git branch](https://github.com/pydantic/pydantic/tree/1.10.X-fixes). Pydantic V2 also ships with the latest version of Pydantic V1 built in so that you can incrementally upgrade your code base and projects: `from pydantic import v1 as pydantic_v1`.
## Help
See [documentation](https://docs.pydantic.dev/) for more details.
## Installation
Install using `pip install -U pydantic` or `conda install pydantic -c conda-forge`.
For more installation options to make Pydantic even faster,
see the [Install](https://docs.pydantic.dev/install/) section in the documentation.
## A Simple Example
```python
from datetime import datetime
from typing import Optional
from pydantic import BaseModel
class User(BaseModel):
id: int
name: str = 'John Doe'
signup_ts: Optional[datetime] = None
friends: list[int] = []
external_data = {'id': '123', 'signup_ts': '2017-06-01 12:22', 'friends': [1, '2', b'3']}
user = User(**external_data)
print(user)
#> User id=123 name='John Doe' signup_ts=datetime.datetime(2017, 6, 1, 12, 22) friends=[1, 2, 3]
print(user.id)
#> 123
```
## Contributing
For guidance on setting up a development environment and how to make a
contribution to Pydantic, see
[Contributing to Pydantic](https://docs.pydantic.dev/contributing/).
## Reporting a Security Vulnerability
See our [security policy](https://github.com/pydantic/pydantic/security/policy).
## Changelog
## v2.11.3 (2025-04-08)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.3)
### What's Changed
#### Packaging
* Update V1 copy to v1.10.21 by [@Viicos](https://github.com/Viicos) in [#11706](https://github.com/pydantic/pydantic/pull/11706)
#### Fixes
* Preserve field description when rebuilding model fields by [@Viicos](https://github.com/Viicos) in [#11698](https://github.com/pydantic/pydantic/pull/11698)
## v2.11.2 (2025-04-03)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.2)
### What's Changed
#### Fixes
* Bump `pydantic-core` to v2.33.1 by [@Viicos](https://github.com/Viicos) in [#11678](https://github.com/pydantic/pydantic/pull/11678)
* Make sure `__pydantic_private__` exists before setting private attributes by [@Viicos](https://github.com/Viicos) in [#11666](https://github.com/pydantic/pydantic/pull/11666)
* Do not override `FieldInfo._complete` when using field from parent class by [@Viicos](https://github.com/Viicos) in [#11668](https://github.com/pydantic/pydantic/pull/11668)
* Provide the available definitions when applying discriminated unions by [@Viicos](https://github.com/Viicos) in [#11670](https://github.com/pydantic/pydantic/pull/11670)
* Do not expand root type in the mypy plugin for variables by [@Viicos](https://github.com/Viicos) in [#11676](https://github.com/pydantic/pydantic/pull/11676)
* Mention the attribute name in model fields deprecation message by [@Viicos](https://github.com/Viicos) in [#11674](https://github.com/pydantic/pydantic/pull/11674)
* Properly validate parameterized mappings by [@Viicos](https://github.com/Viicos) in [#11658](https://github.com/pydantic/pydantic/pull/11658)
## v2.11.1 (2025-03-28)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.1)
### What's Changed
#### Fixes
* Do not override `'definitions-ref'` schemas containing serialization schemas or metadata by [@Viicos](https://github.com/Viicos) in [#11644](https://github.com/pydantic/pydantic/pull/11644)
## v2.11.0 (2025-03-27)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0)
### What's Changed
Pydantic v2.11 is a version strongly focused on build time performance of Pydantic models (and core schema generation in general).
See the [blog post](https://pydantic.dev/articles/pydantic-v2-11-release) for more details.
#### Packaging
* Bump `pydantic-core` to v2.33.0 by [@Viicos](https://github.com/Viicos) in [#11631](https://github.com/pydantic/pydantic/pull/11631)
#### New Features
* Add `encoded_string()` method to the URL types by [@YassinNouh21](https://github.com/YassinNouh21) in [#11580](https://github.com/pydantic/pydantic/pull/11580)
* Add support for `defer_build` with `@validate_call` decorator by [@Viicos](https://github.com/Viicos) in [#11584](https://github.com/pydantic/pydantic/pull/11584)
* Allow `@with_config` decorator to be used with keyword arguments by [@Viicos](https://github.com/Viicos) in [#11608](https://github.com/pydantic/pydantic/pull/11608)
* Simplify customization of default value inclusion in JSON Schema generation by [@Viicos](https://github.com/Viicos) in [#11634](https://github.com/pydantic/pydantic/pull/11634)
* Add `generate_arguments_schema()` function by [@Viicos](https://github.com/Viicos) in [#11572](https://github.com/pydantic/pydantic/pull/11572)
#### Fixes
* Allow generic typed dictionaries to be used for unpacked variadic keyword parameters by [@Viicos](https://github.com/Viicos) in [#11571](https://github.com/pydantic/pydantic/pull/11571)
* Fix runtime error when computing model string representation involving cached properties and self-referenced models by [@Viicos](https://github.com/Viicos) in [#11579](https://github.com/pydantic/pydantic/pull/11579)
* Preserve other steps when using the ellipsis in the pipeline API by [@Viicos](https://github.com/Viicos) in [#11626](https://github.com/pydantic/pydantic/pull/11626)
* Fix deferred discriminator application logic by [@Viicos](https://github.com/Viicos) in [#11591](https://github.com/pydantic/pydantic/pull/11591)
### New Contributors
* [@cmenon12](https://github.com/cmenon12) made their first contribution in [#11562](https://github.com/pydantic/pydantic/pull/11562)
* [@Jeukoh](https://github.com/Jeukoh) made their first contribution in [#11611](https://github.com/pydantic/pydantic/pull/11611)
## v2.11.0b2 (2025-03-17)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0b2)
### What's Changed
#### Packaging
* Bump `pydantic-core` to v2.32.0 by [@Viicos](https://github.com/Viicos) in [#11567](https://github.com/pydantic/pydantic/pull/11567)
#### New Features
* Add experimental support for free threading by [@Viicos](https://github.com/Viicos) in [#11516](https://github.com/pydantic/pydantic/pull/11516)
#### Fixes
* Fix `NotRequired` qualifier not taken into account in stringified annotation by [@Viicos](https://github.com/Viicos) in [#11559](https://github.com/pydantic/pydantic/pull/11559)
### New Contributors
* [@joren485](https://github.com/joren485) made their first contribution in [#11547](https://github.com/pydantic/pydantic/pull/11547)
## v2.11.0b1 (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](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11324
* Remove `greenlet` development dependency by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11351
* Use the `typing-inspection` library by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11479
* Bump `pydantic-core` to `v2.31.1` by [@sydney-runkle](https://github.com/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](https://github.com/FyZzyss) in https://github.com/pydantic/pydantic/pull/10789
* Add a `default_factory_takes_validated_data` property to `FieldInfo` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11034
* Raise a better error when a generic alias is used inside `type[]` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11088
* Properly support PEP 695 generics syntax by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11189
* Properly support type variable defaults by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11332
* Add support for validating v6, v7, v8 UUIDs by [@astei](https://github.com/astei) in https://github.com/pydantic/pydantic/pull/11436
* Improve alias configuration APIs by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11468
#### Changes
* Rework `create_model` field definitions format by [@Viicos](https://github.com/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](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11168
* Deprecate accessing `model_fields` and `model_computed_fields` on instances by [@Viicos](https://github.com/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](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/10846
* Remove Python 3.8 Support by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11258
* Optimize calls to `get_type_ref` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/10863
* Disable `pydantic-core` core schema validation by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11271
#### Performance
* Only evaluate `FieldInfo` annotations if required during schema building by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/10769
* Improve `__setattr__` performance of Pydantic models by caching setter functions by [@MarkusSintonen](https://github.com/MarkusSintonen) in https://github.com/pydantic/pydantic/pull/10868
* Improve annotation application performance by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11186
* Improve performance of `_typing_extra` module by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11255
* Refactor and optimize schema cleaning logic by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11244
* Create a single dictionary when creating a `CoreConfig` instance by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11384
* Bump `pydantic-core` and thus use `SchemaValidator` and `SchemaSerializer` caching by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11402
* Reuse cached core schemas for parametrized generic Pydantic models by [@MarkusSintonen](https://github.com/MarkusSintonen) in https://github.com/pydantic/pydantic/pull/11434
#### Fixes
* Improve `TypeAdapter` instance repr by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/10872
* Use the correct frame when instantiating a parametrized `TypeAdapter` by [@Viicos](https://github.com/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](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11121
* Recursively unpack `Literal` values if using PEP 695 type aliases by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11114
* Override `__subclasscheck__` on `ModelMetaclass` to avoid memory leak and performance issues by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11116
* Remove unused `_extract_get_pydantic_json_schema()` parameter by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11155
* Improve discriminated union error message for invalid union variants by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11161
* Unpack PEP 695 type aliases if using the `Annotated` form by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11109
* Add missing stacklevel in `deprecated_instance_property` warning by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11200
* Copy `WithJsonSchema` schema to avoid sharing mutated data by [@thejcannon](https://github.com/thejcannon) in https://github.com/pydantic/pydantic/pull/11014
* Do not cache parametrized models when in the process of parametrizing another model by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/10704
* Add discriminated union related metadata entries to the `CoreMetadata` definition by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11216
* Consolidate schema definitions logic in the `_Definitions` class by [@Viicos](https://github.com/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](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11212
* Fix various issues with dataclasses and `use_attribute_docstrings` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11246
* Only compute normalized decimal places if necessary in `decimal_places_validator` by [@misrasaurabh1](https://github.com/misrasaurabh1) in https://github.com/pydantic/pydantic/pull/11281
* Add support for `validation_alias` in the mypy plugin by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11295
* Fix JSON Schema reference collection with `"examples"` keys by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11305
* Do not transform model serializer functions as class methods in the mypy plugin by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11298
* Simplify `GenerateJsonSchema.literal_schema()` implementation by [@misrasaurabh1](https://github.com/misrasaurabh1) in https://github.com/pydantic/pydantic/pull/11321
* Add additional allowed schemes for `ClickHouseDsn` by [@Maze21127](https://github.com/Maze21127) in https://github.com/pydantic/pydantic/pull/11319
* Coerce decimal constraints to `Decimal` instances by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11350
* Use the correct JSON Schema mode when handling function schemas by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11367
* Improve exception message when encountering recursion errors during type evaluation by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11356
* Always include `additionalProperties: True` for arbitrary dictionary schemas by [@austinyu](https://github.com/austinyu) in https://github.com/pydantic/pydantic/pull/11392
* Expose `fallback` parameter in serialization methods by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11398
* Fix path serialization behavior by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11416
* Do not reuse validators and serializers during model rebuild by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11429
* Collect model fields when rebuilding a model by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11388
* Allow cached properties to be altered on frozen models by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11432
* Fix tuple serialization for `Sequence` types by [@sydney-runkle](https://github.com/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](https://github.com/tlambert03) in https://github.com/pydantic/pydantic/pull/11444
* Allow callable instances to be used as serializers by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11451
* Improve error thrown when overriding field with a property by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11459
* Fix JSON Schema generation with referenceable core schemas holding JSON metadata by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11475
* Support strict specification on union member types by [@sydney-runkle](https://github.com/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](https://github.com/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](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11497
* Support type variable defaults referencing other type variables by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11520
* Fix `ValueError` on year zero by [@davidhewitt](https://github.com/davidhewitt) in https://github.com/pydantic/pydantic-core/pull/1583
* `dataclass` `InitVar` shouldn't be required on serialization by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic-core/pull/1602
## New Contributors
* [@FyZzyss](https://github.com/FyZzyss) made their first contribution in https://github.com/pydantic/pydantic/pull/10789
* [@tamird](https://github.com/tamird) made their first contribution in https://github.com/pydantic/pydantic/pull/10948
* [@felixxm](https://github.com/felixxm) made their first contribution in https://github.com/pydantic/pydantic/pull/11077
* [@alexprabhat99](https://github.com/alexprabhat99) made their first contribution in https://github.com/pydantic/pydantic/pull/11082
* [@Kharianne](https://github.com/Kharianne) made their first contribution in https://github.com/pydantic/pydantic/pull/11111
* [@mdaffad](https://github.com/mdaffad) made their first contribution in https://github.com/pydantic/pydantic/pull/11177
* [@thejcannon](https://github.com/thejcannon) made their first contribution in https://github.com/pydantic/pydantic/pull/11014
* [@thomasfrimannkoren](https://github.com/thomasfrimannkoren) made their first contribution in https://github.com/pydantic/pydantic/pull/11251
* [@usernameMAI](https://github.com/usernameMAI) made their first contribution in https://github.com/pydantic/pydantic/pull/11275
* [@ananiavito](https://github.com/ananiavito) made their first contribution in https://github.com/pydantic/pydantic/pull/11302
* [@pawamoy](https://github.com/pawamoy) made their first contribution in https://github.com/pydantic/pydantic/pull/11311
* [@Maze21127](https://github.com/Maze21127) made their first contribution in https://github.com/pydantic/pydantic/pull/11319
* [@kauabh](https://github.com/kauabh) made their first contribution in https://github.com/pydantic/pydantic/pull/11369
* [@jaceklaskowski](https://github.com/jaceklaskowski) made their first contribution in https://github.com/pydantic/pydantic/pull/11353
* [@tmpbeing](https://github.com/tmpbeing) made their first contribution in https://github.com/pydantic/pydantic/pull/11375
* [@petyosi](https://github.com/petyosi) made their first contribution in https://github.com/pydantic/pydantic/pull/11405
* [@austinyu](https://github.com/austinyu) made their first contribution in https://github.com/pydantic/pydantic/pull/11392
* [@mikeedjones](https://github.com/mikeedjones) made their first contribution in https://github.com/pydantic/pydantic/pull/11402
* [@astei](https://github.com/astei) made their first contribution in https://github.com/pydantic/pydantic/pull/11436
* [@dsayling](https://github.com/dsayling) made their first contribution in https://github.com/pydantic/pydantic/pull/11522
* [@sobolevn](https://github.com/sobolevn) made their first contribution in https://github.com/pydantic/pydantic-core/pull/1645
## v2.11.0a2 (2025-02-10)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0a2)
### What's Changed
Pydantic v2.11 is a version strongly focused on build time performance of Pydantic models (and core schema generation in general).
This is another early alpha release, meant to collect early feedback from users having issues with core schema builds.
#### Packaging
* Bump `ruff` from 0.9.2 to 0.9.5 by [@Viicos](https://github.com/Viicos) in [#11407](https://github.com/pydantic/pydantic/pull/11407)
* Bump `pydantic-core` to v2.29.0 by [@mikeedjones](https://github.com/mikeedjones) in [#11402](https://github.com/pydantic/pydantic/pull/11402)
* Use locally-built rust with symbols & pgo by [@davidhewitt](https://github.com/davidhewitt) in [#11403](https://github.com/pydantic/pydantic/pull/11403)
#### Performance
* Create a single dictionary when creating a `CoreConfig` instance by [@sydney-runkle](https://github.com/sydney-runkle) in [#11384](https://github.com/pydantic/pydantic/pull/11384)
#### Fixes
* Use the correct JSON Schema mode when handling function schemas by [@Viicos](https://github.com/Viicos) in [#11367](https://github.com/pydantic/pydantic/pull/11367)
* Fix JSON Schema reference logic with `examples` keys by [@Viicos](https://github.com/Viicos) in [#11366](https://github.com/pydantic/pydantic/pull/11366)
* Improve exception message when encountering recursion errors during type evaluation by [@Viicos](https://github.com/Viicos) in [#11356](https://github.com/pydantic/pydantic/pull/11356)
* Always include `additionalProperties: True` for arbitrary dictionary schemas by [@austinyu](https://github.com/austinyu) in [#11392](https://github.com/pydantic/pydantic/pull/11392)
* Expose `fallback` parameter in serialization methods by [@Viicos](https://github.com/Viicos) in [#11398](https://github.com/pydantic/pydantic/pull/11398)
* Fix path serialization behavior by [@sydney-runkle](https://github.com/sydney-runkle) in [#11416](https://github.com/pydantic/pydantic/pull/11416)
### New Contributors
* [@kauabh](https://github.com/kauabh) made their first contribution in [#11369](https://github.com/pydantic/pydantic/pull/11369)
* [@jaceklaskowski](https://github.com/jaceklaskowski) made their first contribution in [#11353](https://github.com/pydantic/pydantic/pull/11353)
* [@tmpbeing](https://github.com/tmpbeing) made their first contribution in [#11375](https://github.com/pydantic/pydantic/pull/11375)
* [@petyosi](https://github.com/petyosi) made their first contribution in [#11405](https://github.com/pydantic/pydantic/pull/11405)
* [@austinyu](https://github.com/austinyu) made their first contribution in [#11392](https://github.com/pydantic/pydantic/pull/11392)
* [@mikeedjones](https://github.com/mikeedjones) made their first contribution in [#11402](https://github.com/pydantic/pydantic/pull/11402)
## v2.11.0a1 (2025-01-30)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0a1)
### What's Changed
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](https://github.com/dependabot) in [#11018](https://github.com/pydantic/pydantic/pull/11018)
* Re-enable memray related tests on Python 3.12+ by [@Viicos](https://github.com/Viicos) in [#11191](https://github.com/pydantic/pydantic/pull/11191)
* Bump astral-sh/setup-uv to 5 by [@dependabot](https://github.com/dependabot) in [#11205](https://github.com/pydantic/pydantic/pull/11205)
* Bump `ruff` to v0.9.0 by [@sydney-runkle](https://github.com/sydney-runkle) in [#11254](https://github.com/pydantic/pydantic/pull/11254)
* Regular `uv.lock` deps update by [@sydney-runkle](https://github.com/sydney-runkle) in [#11333](https://github.com/pydantic/pydantic/pull/11333)
* Add a `check_pydantic_core_version()` function by [@Viicos](https://github.com/Viicos) in [#11324](https://github.com/pydantic/pydantic/pull/11324)
* Remove `greenlet` development dependency by [@Viicos](https://github.com/Viicos) in [#11351](https://github.com/pydantic/pydantic/pull/11351)
* Bump `pydantic-core` to v2.28.0 by [@Viicos](https://github.com/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](https://github.com/FyZzyss) in [#10789](https://github.com/pydantic/pydantic/pull/10789)
* Add a `default_factory_takes_validated_data` property to `FieldInfo` by [@Viicos](https://github.com/Viicos) in [#11034](https://github.com/pydantic/pydantic/pull/11034)
* Raise a better error when a generic alias is used inside `type[]` by [@Viicos](https://github.com/Viicos) in [#11088](https://github.com/pydantic/pydantic/pull/11088)
* Properly support PEP 695 generics syntax by [@Viicos](https://github.com/Viicos) in [#11189](https://github.com/pydantic/pydantic/pull/11189)
* Properly support type variable defaults by [@Viicos](https://github.com/Viicos) in [#11332](https://github.com/pydantic/pydantic/pull/11332)
#### Changes
* Rework `create_model` field definitions format by [@Viicos](https://github.com/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](https://github.com/Viicos) in [#11168](https://github.com/pydantic/pydantic/pull/11168)
* Deprecate accessing `model_fields` and `model_computed_fields` on instances by [@Viicos](https://github.com/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](https://github.com/sydney-runkle) in [#10846](https://github.com/pydantic/pydantic/pull/10846)
* Move `deque` schema gen to `GenerateSchema` class by [@sydney-runkle](https://github.com/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](https://github.com/sydney-runkle) in [#11247](https://github.com/pydantic/pydantic/pull/11247)
* Remove Python 3.8 Support by [@sydney-runkle](https://github.com/sydney-runkle) in [#11258](https://github.com/pydantic/pydantic/pull/11258)
* Disable `pydantic-core` core schema validation by [@sydney-runkle](https://github.com/sydney-runkle) in [#11271](https://github.com/pydantic/pydantic/pull/11271)
#### Performance
* Only evaluate `FieldInfo` annotations if required during schema building by [@Viicos](https://github.com/Viicos) in [#10769](https://github.com/pydantic/pydantic/pull/10769)
* Optimize calls to `get_type_ref` by [@Viicos](https://github.com/Viicos) in [#10863](https://github.com/pydantic/pydantic/pull/10863)
* Improve `__setattr__` performance of Pydantic models by caching setter functions by [@MarkusSintonen](https://github.com/MarkusSintonen) in [#10868](https://github.com/pydantic/pydantic/pull/10868)
* Improve annotation application performance by [@Viicos](https://github.com/Viicos) in [#11186](https://github.com/pydantic/pydantic/pull/11186)
* Improve performance of `_typing_extra` module by [@Viicos](https://github.com/Viicos) in [#11255](https://github.com/pydantic/pydantic/pull/11255)
* Refactor and optimize schema cleaning logic by [@Viicos](https://github.com/Viicos) and [@MarkusSintonen](https://github.com/MarkusSintonen) in [#11244](https://github.com/pydantic/pydantic/pull/11244)
#### Fixes
* Add validation tests for `_internal/_validators.py` by [@tkasuz](https://github.com/tkasuz) in [#10763](https://github.com/pydantic/pydantic/pull/10763)
* Improve `TypeAdapter` instance repr by [@sydney-runkle](https://github.com/sydney-runkle) in [#10872](https://github.com/pydantic/pydantic/pull/10872)
* Revert "ci: use locally built pydantic-core with debug symbols by [@sydney-runkle](https://github.com/sydney-runkle) in [#10942](https://github.com/pydantic/pydantic/pull/10942)
* Re-enable all FastAPI tests by [@tamird](https://github.com/tamird) in [#10948](https://github.com/pydantic/pydantic/pull/10948)
* Fix typo in HISTORY.md. by [@felixxm](https://github.com/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](https://github.com/Viicos) in [#11121](https://github.com/pydantic/pydantic/pull/11121)
* Recursively unpack `Literal` values if using PEP 695 type aliases by [@Viicos](https://github.com/Viicos) in [#11114](https://github.com/pydantic/pydantic/pull/11114)
* Override `__subclasscheck__` on `ModelMetaclass` to avoid memory leak and performance issues by [@Viicos](https://github.com/Viicos) in [#11116](https://github.com/pydantic/pydantic/pull/11116)
* Remove unused `_extract_get_pydantic_json_schema()` parameter by [@Viicos](https://github.com/Viicos) in [#11155](https://github.com/pydantic/pydantic/pull/11155)
* Add FastAPI and SQLModel to third-party tests by [@sydney-runkle](https://github.com/sydney-runkle) in [#11044](https://github.com/pydantic/pydantic/pull/11044)
* Fix conditional expressions syntax for third-party tests by [@Viicos](https://github.com/Viicos) in [#11162](https://github.com/pydantic/pydantic/pull/11162)
* Move FastAPI tests to third-party workflow by [@Viicos](https://github.com/Viicos) in [#11164](https://github.com/pydantic/pydantic/pull/11164)
* Improve discriminated union error message for invalid union variants by [@Viicos](https://github.com/Viicos) in [#11161](https://github.com/pydantic/pydantic/pull/11161)
* Unpack PEP 695 type aliases if using the `Annotated` form by [@Viicos](https://github.com/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](https://github.com/sydney-runkle) in [#11182](https://github.com/pydantic/pydantic/pull/11182)
* Add pandera third-party tests by [@Viicos](https://github.com/Viicos) in [#11193](https://github.com/pydantic/pydantic/pull/11193)
* Add ODMantic third-party tests by [@sydney-runkle](https://github.com/sydney-runkle) in [#11197](https://github.com/pydantic/pydantic/pull/11197)
* Add missing stacklevel in `deprecated_instance_property` warning by [@Viicos](https://github.com/Viicos) in [#11200](https://github.com/pydantic/pydantic/pull/11200)
* Copy `WithJsonSchema` schema to avoid sharing mutated data by [@thejcannon](https://github.com/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](https://github.com/Viicos) in [#10704](https://github.com/pydantic/pydantic/pull/10704)
* Re-enable Beanie third-party tests by [@Viicos](https://github.com/Viicos) in [#11214](https://github.com/pydantic/pydantic/pull/11214)
* Add discriminated union related metadata entries to the `CoreMetadata` definition by [@Viicos](https://github.com/Viicos) in [#11216](https://github.com/pydantic/pydantic/pull/11216)
* Consolidate schema definitions logic in the `_Definitions` class by [@Viicos](https://github.com/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](https://github.com/Viicos) in [#11212](https://github.com/pydantic/pydantic/pull/11212)
* Fix various issues with dataclasses and `use_attribute_docstrings` by [@Viicos](https://github.com/Viicos) in [#11246](https://github.com/pydantic/pydantic/pull/11246)
* Only compute normalized decimal places if necessary in `decimal_places_validator` by [@misrasaurabh1](https://github.com/misrasaurabh1) in [#11281](https://github.com/pydantic/pydantic/pull/11281)
* Fix two misplaced sentences in validation errors documentation by [@ananiavito](https://github.com/ananiavito) in [#11302](https://github.com/pydantic/pydantic/pull/11302)
* Fix mkdocstrings inventory example in documentation by [@pawamoy](https://github.com/pawamoy) in [#11311](https://github.com/pydantic/pydantic/pull/11311)
* Add support for `validation_alias` in the mypy plugin by [@Viicos](https://github.com/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](https://github.com/Viicos) in [#11298](https://github.com/pydantic/pydantic/pull/11298)
* Simplify `GenerateJsonSchema.literal_schema()` implementation by [@misrasaurabh1](https://github.com/misrasaurabh1) in [#11321](https://github.com/pydantic/pydantic/pull/11321)
* Add additional allowed schemes for `ClickHouseDsn` by [@Maze21127](https://github.com/Maze21127) in [#11319](https://github.com/pydantic/pydantic/pull/11319)
* Coerce decimal constraints to `Decimal` instances by [@Viicos](https://github.com/Viicos) in [#11350](https://github.com/pydantic/pydantic/pull/11350)
* Fix `ValueError` on year zero by [@davidhewitt](https://github.com/davidhewitt) in [pydantic-core#1583](https://github.com/pydantic/pydantic-core/pull/1583)
### New Contributors
* [@FyZzyss](https://github.com/FyZzyss) made their first contribution in [#10789](https://github.com/pydantic/pydantic/pull/10789)
* [@tamird](https://github.com/tamird) made their first contribution in [#10948](https://github.com/pydantic/pydantic/pull/10948)
* [@felixxm](https://github.com/felixxm) made their first contribution in [#11077](https://github.com/pydantic/pydantic/pull/11077)
* [@alexprabhat99](https://github.com/alexprabhat99) made their first contribution in [#11082](https://github.com/pydantic/pydantic/pull/11082)
* [@Kharianne](https://github.com/Kharianne) made their first contribution in [#11111](https://github.com/pydantic/pydantic/pull/11111)
* [@mdaffad](https://github.com/mdaffad) made their first contribution in [#11177](https://github.com/pydantic/pydantic/pull/11177)
* [@thejcannon](https://github.com/thejcannon) made their first contribution in [#11014](https://github.com/pydantic/pydantic/pull/11014)
* [@thomasfrimannkoren](https://github.com/thomasfrimannkoren) made their first contribution in [#11251](https://github.com/pydantic/pydantic/pull/11251)
* [@usernameMAI](https://github.com/usernameMAI) made their first contribution in [#11275](https://github.com/pydantic/pydantic/pull/11275)
* [@ananiavito](https://github.com/ananiavito) made their first contribution in [#11302](https://github.com/pydantic/pydantic/pull/11302)
* [@pawamoy](https://github.com/pawamoy) made their first contribution in [#11311](https://github.com/pydantic/pydantic/pull/11311)
* [@Maze21127](https://github.com/Maze21127) made their first contribution in [#11319](https://github.com/pydantic/pydantic/pull/11319)
## v2.10.6 (2025-01-23)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.6)
### What's Changed
#### Fixes
* Fix JSON Schema reference collection with `'examples'` keys by [@Viicos](https://github.com/Viicos) in [#11325](https://github.com/pydantic/pydantic/pull/11325)
* Fix url python serialization by [@sydney-runkle](https://github.com/sydney-runkle) in [#11331](https://github.com/pydantic/pydantic/pull/11331)
## v2.10.5 (2025-01-08)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.5)
### What's Changed
#### Fixes
* Remove custom MRO implementation of Pydantic models by [@Viicos](https://github.com/Viicos) in [#11184](https://github.com/pydantic/pydantic/pull/11184)
* Fix URL serialization for unions by [@sydney-runkle](https://github.com/sydney-runkle) in [#11233](https://github.com/pydantic/pydantic/pull/11233)
## v2.10.4 (2024-12-18)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.4)
### What's Changed
#### Packaging
* Bump `pydantic-core` to v2.27.2 by [@davidhewitt](https://github.com/davidhewitt) in [#11138](https://github.com/pydantic/pydantic/pull/11138)
#### Fixes
* Fix for comparison of `AnyUrl` objects by [@alexprabhat99](https://github.com/alexprabhat99) in [#11082](https://github.com/pydantic/pydantic/pull/11082)
* Properly fetch PEP 695 type params for functions, do not fetch annotations from signature by [@Viicos](https://github.com/Viicos) in [#11093](https://github.com/pydantic/pydantic/pull/11093)
* Include JSON Schema input core schema in function schemas by [@Viicos](https://github.com/Viicos) in [#11085](https://github.com/pydantic/pydantic/pull/11085)
* Add `len` to `_BaseUrl` to avoid TypeError by [@Kharianne](https://github.com/Kharianne) in [#11111](https://github.com/pydantic/pydantic/pull/11111)
* Make sure the type reference is removed from the seen references by [@Viicos](https://github.com/Viicos) in [#11143](https://github.com/pydantic/pydantic/pull/11143)
### New Contributors
* [@FyZzyss](https://github.com/FyZzyss) made their first contribution in [#10789](https://github.com/pydantic/pydantic/pull/10789)
* [@tamird](https://github.com/tamird) made their first contribution in [#10948](https://github.com/pydantic/pydantic/pull/10948)
* [@felixxm](https://github.com/felixxm) made their first contribution in [#11077](https://github.com/pydantic/pydantic/pull/11077)
* [@alexprabhat99](https://github.com/alexprabhat99) made their first contribution in [#11082](https://github.com/pydantic/pydantic/pull/11082)
* [@Kharianne](https://github.com/Kharianne) made their first contribution in [#11111](https://github.com/pydantic/pydantic/pull/11111)
## v2.10.3 (2024-12-03)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.3)
### What's Changed
#### Fixes
* Set fields when `defer_build` is set on Pydantic dataclasses by [@Viicos](https://github.com/Viicos) in [#10984](https://github.com/pydantic/pydantic/pull/10984)
* Do not resolve the JSON Schema reference for `dict` core schema keys by [@Viicos](https://github.com/Viicos) in [#10989](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](https://github.com/Viicos) in [#11008](https://github.com/pydantic/pydantic/pull/11008)
* Fix host required enforcement for urls to be compatible with v2.9 behavior by [@sydney-runkle](https://github.com/sydney-runkle) in [#11027](https://github.com/pydantic/pydantic/pull/11027)
* Add a `default_factory_takes_validated_data` property to `FieldInfo` by [@Viicos](https://github.com/Viicos) in [#11034](https://github.com/pydantic/pydantic/pull/11034)
* Fix url json schema in `serialization` mode by [@sydney-runkle](https://github.com/sydney-runkle) in [#11035](https://github.com/pydantic/pydantic/pull/11035)
## v2.10.2 (2024-11-25)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.2)
### What's Changed
#### Fixes
* Only evaluate FieldInfo annotations if required during schema building by [@Viicos](https://github.com/Viicos) in [#10769](https://github.com/pydantic/pydantic/pull/10769)
* Do not evaluate annotations for private fields by [@Viicos](https://github.com/Viicos) in [#10962](https://github.com/pydantic/pydantic/pull/10962)
* Support serialization as any for `Secret` types and `Url` types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10947](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](https://github.com/Viicos) in [#10972](https://github.com/pydantic/pydantic/pull/10972)
* Add hashing support for URL types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10975](https://github.com/pydantic/pydantic/pull/10975)
* Hide `BaseModel.__replace__` definition from type checkers by [@Viicos](https://github.com/Viicos) in [#10979](https://github.com/pydantic/pydantic/pull/10979)
## v2.10.1 (2024-11-21)
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.1)
### What's Changed
#### Packaging
* Bump `pydantic-core` version to `v2.27.1` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10938](https://github.com/pydantic/pydantic/pull/10938)
#### Fixes
* Use the correct frame when instantiating a parametrized `TypeAdapter` by [@Viicos](https://github.com/Viicos) in [#10893](https://github.com/pydantic/pydantic/pull/10893)
* Relax check for validated data in `default_factory` utils by [@sydney-runkle](https://github.com/sydney-runkle) in [#10909](https://github.com/pydantic/pydantic/pull/10909)
* Fix type checking issue with `model_fields` and `model_computed_fields` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10911](https://github.com/pydantic/pydantic/pull/10911)
* Use the parent configuration during schema generation for stdlib `dataclass`es by [@sydney-runkle](https://github.com/sydney-runkle) in [#10928](https://github.com/pydantic/pydantic/pull/10928)
* Use the `globals` of the function when evaluating the return type of serializers and `computed_field`s by [@Viicos](https://github.com/Viicos) in [#10929](https://github.com/pydantic/pydantic/pull/10929)
* Fix URL constraint application by [@sydney-runkle](https://github.com/sydney-runkle) in [#10922](https://github.com/pydantic/pydantic/pull/10922)
* Fix URL equality with different validation methods by [@sydney-runkle](https://github.com/sydney-runkle) in [#10934](https://github.com/pydantic/pydantic/pull/10934)
* Fix JSON schema title when specified as `''` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10936](https://github.com/pydantic/pydantic/pull/10936)
* Fix `python` mode serialization for `complex` inference by [@sydney-runkle](https://github.com/sydney-runkle) in [pydantic-core#1549](https://github.com/pydantic/pydantic-core/pull/1549)
### New Contributors
## v2.10.0 (2024-11-20)
The code released in v2.10.0 is practically identical to that of v2.10.0b2.
[GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.0)
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](https://github.com/sydney-runkle) in [#10825](https://github.com/pydantic/pydantic/pull/10825)
* Replaced pdm with uv by [@frfahim](https://github.com/frfahim) in [#10727](https://github.com/pydantic/pydantic/pull/10727)
#### New Features
* Support `fractions.Fraction` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10318](https://github.com/pydantic/pydantic/pull/10318)
* Support `Hashable` for json validation by [@sydney-runkle](https://github.com/sydney-runkle) in [#10324](https://github.com/pydantic/pydantic/pull/10324)
* Add a `SocketPath` type for `linux` systems by [@theunkn0wn1](https://github.com/theunkn0wn1) in [#10378](https://github.com/pydantic/pydantic/pull/10378)
* Allow arbitrary refs in JSON schema `examples` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10417](https://github.com/pydantic/pydantic/pull/10417)
* Support `defer_build` for Pydantic dataclasses by [@Viicos](https://github.com/Viicos) in [#10313](https://github.com/pydantic/pydantic/pull/10313)
* Adding v1 / v2 incompatibility warning for nested v1 model by [@sydney-runkle](https://github.com/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](https://github.com/Viicos) in [#10416](https://github.com/pydantic/pydantic/pull/10416)
* Support compiled patterns in `protected_namespaces` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10522](https://github.com/pydantic/pydantic/pull/10522)
* Add support for `propertyNames` in JSON schema by [@FlorianSW](https://github.com/FlorianSW) in [#10478](https://github.com/pydantic/pydantic/pull/10478)
* Adding `__replace__` protocol for Python 3.13+ support by [@sydney-runkle](https://github.com/sydney-runkle) in [#10596](https://github.com/pydantic/pydantic/pull/10596)
* Expose public `sort` method for JSON schema generation by [@sydney-runkle](https://github.com/sydney-runkle) in [#10595](https://github.com/pydantic/pydantic/pull/10595)
* Add runtime validation of `@validate_call` callable argument by [@kc0506](https://github.com/kc0506) in [#10627](https://github.com/pydantic/pydantic/pull/10627)
* Add `experimental_allow_partial` support by [@samuelcolvin](https://github.com/samuelcolvin) in [#10748](https://github.com/pydantic/pydantic/pull/10748)
* Support default factories taking validated data as an argument by [@Viicos](https://github.com/Viicos) in [#10678](https://github.com/pydantic/pydantic/pull/10678)
* Allow subclassing `ValidationError` and `PydanticCustomError` by [@Youssefares](https://github.com/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](https://github.com/sydney-runkle) in [#10825](https://github.com/pydantic/pydantic/pull/10825)
* Add `rebuild()` method for `TypeAdapter` and simplify `defer_build` patterns by [@sydney-runkle](https://github.com/sydney-runkle) in [#10537](https://github.com/pydantic/pydantic/pull/10537)
* Improve `TypeAdapter` instance repr by [@sydney-runkle](https://github.com/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](https://github.com/sydney-runkle) in [#10303](https://github.com/pydantic/pydantic/pull/10303)
* Cleanly `defer_build` on `TypeAdapters`, removing experimental flag by [@sydney-runkle](https://github.com/sydney-runkle) in [#10329](https://github.com/pydantic/pydantic/pull/10329)
* Fix `mro` of generic subclass by [@kc0506](https://github.com/kc0506) in [#10100](https://github.com/pydantic/pydantic/pull/10100)
* Strip whitespaces on JSON Schema title generation by [@sydney-runkle](https://github.com/sydney-runkle) in [#10404](https://github.com/pydantic/pydantic/pull/10404)
* Use `b64decode` and `b64encode` for `Base64Bytes` type by [@sydney-runkle](https://github.com/sydney-runkle) in [#10486](https://github.com/pydantic/pydantic/pull/10486)
* Relax protected namespace config default by [@sydney-runkle](https://github.com/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](https://github.com/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](https://github.com/sydney-runkle) in [#10406](https://github.com/pydantic/pydantic/pull/10406)
* Recommend against using `Ellipsis` (...) with `Field` by [@Viicos](https://github.com/Viicos) in [#10661](https://github.com/pydantic/pydantic/pull/10661)
* Migrate to subclassing instead of annotated approach for pydantic url types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10662](https://github.com/pydantic/pydantic/pull/10662)
* Change JSON schema generation of `Literal`s and `Enums` by [@Viicos](https://github.com/Viicos) in [#10692](https://github.com/pydantic/pydantic/pull/10692)
* Simplify unions involving `Any` or `Never` when replacing type variables by [@Viicos](https://github.com/Viicos) in [#10338](https://github.com/pydantic/pydantic/pull/10338)
* Do not require padding when decoding `base64` bytes by [@bschoenmaeckers](https://github.com/bschoenmaeckers) in [pydantic/pydantic-core#1448](https://github.com/pydantic/pydantic-core/pull/1448)
* Support dates all the way to 1BC by [@changhc](https://github.com/changhc) in [pydantic/speedate#77](https://github.com/pydantic/speedate/pull/77)
#### Performance
* Schema cleaning: skip unnecessary copies during schema walking by [@Viicos](https://github.com/Viicos) in [#10286](https://github.com/pydantic/pydantic/pull/10286)
* Refactor namespace logic for annotations evaluation by [@Viicos](https://github.com/Viicos) in [#10530](https://github.com/pydantic/pydantic/pull/10530)
* Improve email regexp on edge cases by [@AlekseyLobanov](https://github.com/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](https://github.com/sydney-runkle) in [#10675](https://github.com/pydantic/pydantic/pull/10675)
#### Fixes
* Remove guarding check on `computed_field` with `field_serializer` by [@nix010](https://github.com/nix010) in [#10390](https://github.com/pydantic/pydantic/pull/10390)
* Fix `Predicate` issue in `v2.9.0` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10321](https://github.com/pydantic/pydantic/pull/10321)
* Fixing `annotated-types` bound by [@sydney-runkle](https://github.com/sydney-runkle) in [#10327](https://github.com/pydantic/pydantic/pull/10327)
* Turn `tzdata` install requirement into optional `timezone` dependency by [@jakob-keller](https://github.com/jakob-keller) in [#10331](https://github.com/pydantic/pydantic/pull/10331)
* Use correct types namespace when building `namedtuple` core schemas by [@Viicos](https://github.com/Viicos) in [#10337](https://github.com/pydantic/pydantic/pull/10337)
* Fix evaluation of stringified annotations during namespace inspection by [@Viicos](https://github.com/Viicos) in [#10347](https://github.com/pydantic/pydantic/pull/10347)
* Fix `IncEx` type alias definition by [@Viicos](https://github.com/Viicos) in [#10339](https://github.com/pydantic/pydantic/pull/10339)
* Do not error when trying to evaluate annotations of private attributes by [@Viicos](https://github.com/Viicos) in [#10358](https://github.com/pydantic/pydantic/pull/10358)
* Fix nested type statement by [@kc0506](https://github.com/kc0506) in [#10369](https://github.com/pydantic/pydantic/pull/10369)
* Improve typing of `ModelMetaclass.mro` by [@Viicos](https://github.com/Viicos) in [#10372](https://github.com/pydantic/pydantic/pull/10372)
* Fix class access of deprecated `computed_field`s by [@Viicos](https://github.com/Viicos) in [#10391](https://github.com/pydantic/pydantic/pull/10391)
* Make sure `inspect.iscoroutinefunction` works on coroutines decorated with `@validate_call` by [@MovisLi](https://github.com/MovisLi) in [#10374](https://github.com/pydantic/pydantic/pull/10374)
* Fix `NameError` when using `validate_call` with PEP 695 on a class by [@kc0506](https://github.com/kc0506) in [#10380](https://github.com/pydantic/pydantic/pull/10380)
* Fix `ZoneInfo` with various invalid types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10408](https://github.com/pydantic/pydantic/pull/10408)
* Fix `PydanticUserError` on empty `model_config` with annotations by [@cdwilson](https://github.com/cdwilson) in [#10412](https://github.com/pydantic/pydantic/pull/10412)
* Fix variance issue in `_IncEx` type alias, only allow `True` by [@Viicos](https://github.com/Viicos) in [#10414](https://github.com/pydantic/pydantic/pull/10414)
* Fix serialization schema generation when using `PlainValidator` by [@Viicos](https://github.com/Viicos) in [#10427](https://github.com/pydantic/pydantic/pull/10427)
* Fix schema generation error when serialization schema holds references by [@Viicos](https://github.com/Viicos) in [#10444](https://github.com/pydantic/pydantic/pull/10444)
* Inline references if possible when generating schema for `json_schema_input_type` by [@Viicos](https://github.com/Viicos) in [#10439](https://github.com/pydantic/pydantic/pull/10439)
* Fix recursive arguments in `Representation` by [@Viicos](https://github.com/Viicos) in [#10480](https://github.com/pydantic/pydantic/pull/10480)
* Fix representation for builtin function types by [@kschwab](https://github.com/kschwab) in [#10479](https://github.com/pydantic/pydantic/pull/10479)
* Add python validators for decimal constraints (`max_digits` and `decimal_places`) by [@sydney-runkle](https://github.com/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](https://github.com/Viicos) in [#10518](https://github.com/pydantic/pydantic/pull/10518)
* Fix `stacklevel` on deprecation warnings for `BaseModel` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10520](https://github.com/pydantic/pydantic/pull/10520)
* Fix warning `stacklevel` in `BaseModel.__init__` by [@Viicos](https://github.com/Viicos) in [#10526](https://github.com/pydantic/pydantic/pull/10526)
* Improve error handling for in-evaluable refs for discriminator application by [@sydney-runkle](https://github.com/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](https://github.com/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](https://github.com/Viicos) in [#10576](https://github.com/pydantic/pydantic/pull/10576)
* Fix serialization for IP types with `mode='python'` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10594](https://github.com/pydantic/pydantic/pull/10594)
* Support constraint application for `Base64Etc` types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10584](https://github.com/pydantic/pydantic/pull/10584)
* Fix `validate_call` ignoring `Field` in `Annotated` by [@kc0506](https://github.com/kc0506) in [#10610](https://github.com/pydantic/pydantic/pull/10610)
* Raise an error when `Self` is invalid by [@kc0506](https://github.com/kc0506) in [#10609](https://github.com/pydantic/pydantic/pull/10609)
* Using `core_schema.InvalidSchema` instead of metadata injection + checks by [@sydney-runkle](https://github.com/sydney-runkle) in [#10523](https://github.com/pydantic/pydantic/pull/10523)
* Tweak type alias logic by [@kc0506](https://github.com/kc0506) in [#10643](https://github.com/pydantic/pydantic/pull/10643)
* Support usage of `type` with `typing.Self` and type aliases by [@kc0506](https://github.com/kc0506) in [#10621](https://github.com/pydantic/pydantic/pull/10621)
* Use overloads for `Field` and `PrivateAttr` functions by [@Viicos](https://github.com/Viicos) in [#10651](https://github.com/pydantic/pydantic/pull/10651)
* Clean up the `mypy` plugin implementation by [@Viicos](https://github.com/Viicos) in [#10669](https://github.com/pydantic/pydantic/pull/10669)
* Properly check for `typing_extensions` variant of `TypeAliasType` by [@Daraan](https://github.com/Daraan) in [#10713](https://github.com/pydantic/pydantic/pull/10713)
* Allow any mapping in `BaseModel.model_copy()` by [@Viicos](https://github.com/Viicos) in [#10751](https://github.com/pydantic/pydantic/pull/10751)
* Fix `isinstance` behavior for urls by [@sydney-runkle](https://github.com/sydney-runkle) in [#10766](https://github.com/pydantic/pydantic/pull/10766)
* Ensure `cached_property` can be set on Pydantic models by [@Viicos](https://github.com/Viicos) in [#10774](https://github.com/pydantic/pydantic/pull/10774)
* Fix equality checks for primitives in literals by [@sydney-runkle](https://github.com/sydney-runkle) in [pydantic/pydantic-core#1459](https://github.com/pydantic/pydantic-core/pull/1459)
* Properly enforce `host_required` for URLs by [@Viicos](https://github.com/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](https://github.com/andrey-berenda) in [pydantic/pydantic-core#1515](https://github.com/pydantic/pydantic-core/pull/1515)
* Fix serializing `complex` values in `Enum`s by [@changhc](https://github.com/changhc) in [pydantic/pydantic-core#1524](https://github.com/pydantic/pydantic-core/pull/1524)
* Refactor `_typing_extra` module by [@Viicos](https://github.com/Viicos) in [#10725](https://github.com/pydantic/pydantic/pull/10725)
* Support intuitive equality for urls by [@sydney-runkle](https://github.com/sydney-runkle) in [#10798](https://github.com/pydantic/pydantic/pull/10798)
* Add `bytearray` to `TypeAdapter.validate_json` signature by [@samuelcolvin](https://github.com/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](https://github.com/Viicos) in [#10816](https://github.com/pydantic/pydantic/pull/10816)
* Fix circular import with `validate_call` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10807](https://github.com/pydantic/pydantic/pull/10807)
* Fix error when using type aliases referencing other type aliases by [@Viicos](https://github.com/Viicos) in [#10809](https://github.com/pydantic/pydantic/pull/10809)
* Fix `IncEx` type alias to be compatible with mypy by [@Viicos](https://github.com/Viicos) in [#10813](https://github.com/pydantic/pydantic/pull/10813)
* Make `__signature__` a lazy property, do not deepcopy defaults by [@Viicos](https://github.com/Viicos) in [#10818](https://github.com/pydantic/pydantic/pull/10818)
* Make `__signature__` lazy for dataclasses, too by [@sydney-runkle](https://github.com/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](https://github.com/sydney-runkle) in [#10856](https://github.com/pydantic/pydantic/pull/10856)
### New Contributors
* [@jakob-keller](https://github.com/jakob-keller) made their first contribution in [#10331](https://github.com/pydantic/pydantic/pull/10331)
* [@MovisLi](https://github.com/MovisLi) made their first contribution in [#10374](https://github.com/pydantic/pydantic/pull/10374)
* [@joaopalmeiro](https://github.com/joaopalmeiro) made their first contribution in [#10405](https://github.com/pydantic/pydantic/pull/10405)
* [@theunkn0wn1](https://github.com/theunkn0wn1) made their first contribution in [#10378](https://github.com/pydantic/pydantic/pull/10378)
* [@cdwilson](https://github.com/cdwilson) made their first contribution in [#10412](https://github.com/pydantic/pydantic/pull/10412)
* [@dlax](https://github.com/dlax) made their first contribution in [#10421](https://github.com/pydantic/pydantic/pull/10421)
* [@kschwab](https://github.com/kschwab) made their first contribution in [#10479](https://github.com/pydantic/pydantic/pull/10479)
* [@santibreo](https://github.com/santibreo) made their first contribution in [#10453](https://github.com/pydantic/pydantic/pull/10453)
* [@FlorianSW](https://github.com/FlorianSW) made their first contribution in [#10478](https://github.com/pydantic/pydantic/pull/10478)
* [@tkasuz](https://github.com/tkasuz) made their first contribution in [#10555](https://github.com/pydantic/pydantic/pull/10555)
* [@AlekseyLobanov](https://github.com/AlekseyLobanov) made their first contribution in [#10601](https://github.com/pydantic/pydantic/pull/10601)
* [@NiclasvanEyk](https://github.com/NiclasvanEyk) made their first contribution in [#10667](https://github.com/pydantic/pydantic/pull/10667)
* [@mschoettle](https://github.com/mschoettle) made their first contribution in [#10677](https://github.com/pydantic/pydantic/pull/10677)
* [@Daraan](https://github.com/Daraan) made their first contribution in [#10713](https://github.com/pydantic/pydantic/pull/10713)
* [@k4nar](https://github.com/k4nar) made their first contribution in [#10736](https://github.com/pydantic/pydantic/pull/10736)
* [@UriyaHarpeness](https://github.com/UriyaHarpeness) made their first contribution in [#10740](https://github.com/pydantic/pydantic/pull/10740)
* [@frfahim](https://github.com/frfahim) made their first contribution in [#10727](https://github.com/pydantic/pydantic/pull/10727)
## v2.10.0b2 (2024-11-13)
Pre-release, see [the GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.0b2) for details.
## v2.10.0b1 (2024-11-06)
Pre-release, see [the GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.0b1) for details.
... see [here](https://docs.pydantic.dev/changelog/#v0322-2019-08-17) for earlier changes.