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  1. Metadata-Version: 2.4
  2. Name: pydantic
  3. Version: 2.12.0
  4. Summary: Data validation using Python type hints
  5. Project-URL: Homepage, https://github.com/pydantic/pydantic
  6. Project-URL: Documentation, https://docs.pydantic.dev
  7. Project-URL: Funding, https://github.com/sponsors/samuelcolvin
  8. Project-URL: Source, https://github.com/pydantic/pydantic
  9. Project-URL: Changelog, https://docs.pydantic.dev/latest/changelog/
  10. 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>, Douwe Maan <hi@douwe.me>
  11. License-Expression: MIT
  12. License-File: LICENSE
  13. Classifier: Development Status :: 5 - Production/Stable
  14. Classifier: Framework :: Hypothesis
  15. Classifier: Framework :: Pydantic
  16. Classifier: Intended Audience :: Developers
  17. Classifier: Intended Audience :: Information Technology
  18. Classifier: Operating System :: OS Independent
  19. Classifier: Programming Language :: Python
  20. Classifier: Programming Language :: Python :: 3
  21. Classifier: Programming Language :: Python :: 3 :: Only
  22. Classifier: Programming Language :: Python :: 3.9
  23. Classifier: Programming Language :: Python :: 3.10
  24. Classifier: Programming Language :: Python :: 3.11
  25. Classifier: Programming Language :: Python :: 3.12
  26. Classifier: Programming Language :: Python :: 3.13
  27. Classifier: Programming Language :: Python :: 3.14
  28. Classifier: Programming Language :: Python :: Implementation :: CPython
  29. Classifier: Programming Language :: Python :: Implementation :: PyPy
  30. Classifier: Topic :: Internet
  31. Classifier: Topic :: Software Development :: Libraries :: Python Modules
  32. Requires-Python: >=3.9
  33. Requires-Dist: annotated-types>=0.6.0
  34. Requires-Dist: pydantic-core==2.41.1
  35. Requires-Dist: typing-extensions>=4.14.1
  36. Requires-Dist: typing-inspection>=0.4.2
  37. Provides-Extra: email
  38. Requires-Dist: email-validator>=2.0.0; extra == 'email'
  39. Provides-Extra: timezone
  40. Requires-Dist: tzdata; (python_version >= '3.9' and platform_system == 'Windows') and extra == 'timezone'
  41. Description-Content-Type: text/markdown
  42. # Pydantic Validation
  43. [![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)
  44. [![Coverage](https://coverage-badge.samuelcolvin.workers.dev/pydantic/pydantic.svg)](https://coverage-badge.samuelcolvin.workers.dev/redirect/pydantic/pydantic)
  45. [![pypi](https://img.shields.io/pypi/v/pydantic.svg)](https://pypi.python.org/pypi/pydantic)
  46. [![CondaForge](https://img.shields.io/conda/v/conda-forge/pydantic.svg)](https://anaconda.org/conda-forge/pydantic)
  47. [![downloads](https://static.pepy.tech/badge/pydantic/month)](https://pepy.tech/project/pydantic)
  48. [![versions](https://img.shields.io/pypi/pyversions/pydantic.svg)](https://github.com/pydantic/pydantic)
  49. [![license](https://img.shields.io/github/license/pydantic/pydantic.svg)](https://github.com/pydantic/pydantic/blob/main/LICENSE)
  50. [![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)
  51. [![llms.txt](https://img.shields.io/badge/llms.txt-green)](https://docs.pydantic.dev/latest/llms.txt)
  52. Data validation using Python type hints.
  53. Fast and extensible, Pydantic plays nicely with your linters/IDE/brain.
  54. Define how data should be in pure, canonical Python 3.9+; validate it with Pydantic.
  55. ## Pydantic Logfire :fire:
  56. We've recently launched Pydantic Logfire to help you monitor your applications.
  57. [Learn more](https://pydantic.dev/articles/logfire-announcement)
  58. ## Pydantic V1.10 vs. V2
  59. Pydantic V2 is a ground-up rewrite that offers many new features, performance improvements, and some breaking changes compared to Pydantic V1.
  60. If you're using Pydantic V1 you may want to look at the
  61. [pydantic V1.10 Documentation](https://docs.pydantic.dev/) or,
  62. [`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`.
  63. ## Help
  64. See [documentation](https://docs.pydantic.dev/) for more details.
  65. ## Installation
  66. Install using `pip install -U pydantic` or `conda install pydantic -c conda-forge`.
  67. For more installation options to make Pydantic even faster,
  68. see the [Install](https://docs.pydantic.dev/install/) section in the documentation.
  69. ## A Simple Example
  70. ```python
  71. from datetime import datetime
  72. from typing import Optional
  73. from pydantic import BaseModel
  74. class User(BaseModel):
  75. id: int
  76. name: str = 'John Doe'
  77. signup_ts: Optional[datetime] = None
  78. friends: list[int] = []
  79. external_data = {'id': '123', 'signup_ts': '2017-06-01 12:22', 'friends': [1, '2', b'3']}
  80. user = User(**external_data)
  81. print(user)
  82. #> User id=123 name='John Doe' signup_ts=datetime.datetime(2017, 6, 1, 12, 22) friends=[1, 2, 3]
  83. print(user.id)
  84. #> 123
  85. ```
  86. ## Contributing
  87. For guidance on setting up a development environment and how to make a
  88. contribution to Pydantic, see
  89. [Contributing to Pydantic](https://docs.pydantic.dev/contributing/).
  90. ## Reporting a Security Vulnerability
  91. See our [security policy](https://github.com/pydantic/pydantic/security/policy).
  92. ## Changelog
  93. <!-- markdownlint-disable no-bare-urls -->
  94. <!-- markdownlint-disable descriptive-link-text -->
  95. <!-- markdownlint-disable-next-line first-line-heading -->
  96. ## v2.12.0 (2025-10-07)
  97. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.12.0)
  98. ### What's Changed
  99. This is the final 2.12 release. It features the work of 20 external contributors and provides useful new features, along with initial Python 3.14 support.
  100. Several minor changes (considered non-breaking changes according to our [versioning policy](https://docs.pydantic.dev/2.12/version-policy/#pydantic-v2))
  101. are also included in this release. Make sure to look into them before upgrading.
  102. Changes (see the alpha and beta releases for additional changes since 2.11):
  103. #### Packaging
  104. * Update V1 copy to v1.10.24 by [@Viicos](https://github.com/Viicos) in [#12338](https://github.com/pydantic/pydantic/pull/12338)
  105. #### New Features
  106. * Add `extra` parameter to the validate functions by [@anvilpete](https://github.com/anvilpete) in [#12233](https://github.com/pydantic/pydantic/pull/12233)
  107. * Add `exclude_computed_fields` serialization option by [@Viicos](https://github.com/Viicos) in [#12334](https://github.com/pydantic/pydantic/pull/12334)
  108. * Add `preverse_empty_path` URL options by [@Viicos](https://github.com/Viicos) in [#12336](https://github.com/pydantic/pydantic/pull/12336)
  109. * Add `union_format` parameter to JSON Schema generation by [@Viicos](https://github.com/Viicos) in [#12147](https://github.com/pydantic/pydantic/pull/12147)
  110. * Add `__qualname__` parameter for `create_model` by [@Atry](https://github.com/Atry) in [#12001](https://github.com/pydantic/pydantic/pull/12001)
  111. #### Fixes
  112. * Do not try to infer name from lambda definitions in pipelines API by [@Viicos](https://github.com/Viicos) in [#12289](https://github.com/pydantic/pydantic/pull/12289)
  113. * Use proper namespace for functions in `TypeAdapter` by [@Viicos](https://github.com/Viicos) in [#12324](https://github.com/pydantic/pydantic/pull/12324)
  114. * Use `Any` for context type annotation in `TypeAdapter` by [@inducer](https://github.com/inducer) in [#12279](https://github.com/pydantic/pydantic/pull/12279)
  115. * Expose `FieldInfo` in `pydantic.fields.__all__` by [@Viicos](https://github.com/Viicos) in [#12339](https://github.com/pydantic/pydantic/pull/12339)
  116. * Respect `validation_alias` in `@validate_call` by [@Viicos](https://github.com/Viicos) in [#12340](https://github.com/pydantic/pydantic/pull/12340)
  117. * Use `Any` as context annotation in plugin API by [@Viicos](https://github.com/Viicos) in [#12341](https://github.com/pydantic/pydantic/pull/12341)
  118. * Use proper `stacklevel` in warnings when possible by [@Viicos](https://github.com/Viicos) in [#12342](https://github.com/pydantic/pydantic/pull/12342)
  119. ### New Contributors
  120. * [@anvilpete](https://github.com/anvilpete) made their first contribution in [#12233](https://github.com/pydantic/pydantic/pull/12233)
  121. * [@JonathanWindell](https://github.com/JonathanWindell) made their first contribution in [#12327](https://github.com/pydantic/pydantic/pull/12327)
  122. * [@inducer](https://github.com/inducer) made their first contribution in [#12279](https://github.com/pydantic/pydantic/pull/12279)
  123. * [@Atry](https://github.com/Atry) made their first contribution in [#12001](https://github.com/pydantic/pydantic/pull/12001)
  124. ## v2.12.0b1 (2025-10-03)
  125. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.12.0b1)
  126. This is the first beta release of the upcoming 2.12 release.
  127. ### What's Changed
  128. #### Packaging
  129. * Bump `pydantic-core` to v2.40.1 by [@Viicos](https://github.com/Viicos) in [#12314](https://github.com/pydantic/pydantic/pull/12314)
  130. #### New Features
  131. * Add support for `exclude_if` at the field level by [@andresliszt](https://github.com/andresliszt) in [#12141](https://github.com/pydantic/pydantic/pull/12141)
  132. * Add `ValidateAs` annotation helper by [@Viicos](https://github.com/Viicos) in [#11942](https://github.com/pydantic/pydantic/pull/11942)
  133. * Add configuration options for validation and JSON serialization of temporal types by [@ollz272](https://github.com/ollz272) in [#12068](https://github.com/pydantic/pydantic/pull/12068)
  134. * Add support for PEP 728 by [@Viicos](https://github.com/Viicos) in [#12179](https://github.com/pydantic/pydantic/pull/12179)
  135. * Add field name in serialization error by [@NicolasPllr1](https://github.com/NicolasPllr1) in [pydantic-core#1799](https://github.com/pydantic/pydantic-core/pull/1799)
  136. * Add option to preserve empty URL paths by [@davidhewitt](https://github.com/davidhewitt) in [pydantic-core#1789](https://github.com/pydantic/pydantic-core/pull/1789)
  137. #### Changes
  138. * Raise error if an incompatible `pydantic-core` version is installed by [@Viicos](https://github.com/Viicos) in [#12196](https://github.com/pydantic/pydantic/pull/12196)
  139. * Remove runtime warning for experimental features by [@Viicos](https://github.com/Viicos) in [#12265](https://github.com/pydantic/pydantic/pull/12265)
  140. * Warn if registering virtual subclasses on Pydantic models by [@Viicos](https://github.com/Viicos) in [#11669](https://github.com/pydantic/pydantic/pull/11669)
  141. #### Fixes
  142. * Fix `__getattr__()` behavior on Pydantic models when a property raised an `AttributeError` and extra values are present by [@raspuchin](https://github.com/raspuchin) in [#12106](https://github.com/pydantic/pydantic/pull/12106)
  143. * Add test to prevent regression with Pydantic models used as annotated metadata by [@Viicos](https://github.com/Viicos) in [#12133](https://github.com/pydantic/pydantic/pull/12133)
  144. * Allow to use property setters on Pydantic dataclasses with `validate_assignment` set by [@Viicos](https://github.com/Viicos) in [#12173](https://github.com/pydantic/pydantic/pull/12173)
  145. * Fix mypy v2 plugin for upcoming mypy release by [@cdce8p](https://github.com/cdce8p) in [#12209](https://github.com/pydantic/pydantic/pull/12209)
  146. * Respect custom title in functions JSON Schema by [@Viicos](https://github.com/Viicos) in [#11892](https://github.com/pydantic/pydantic/pull/11892)
  147. * Fix `ImportString` JSON serialization for objects with a `name` attribute by [@chr1sj0nes](https://github.com/chr1sj0nes) in [#12219](https://github.com/pydantic/pydantic/pull/12219)
  148. * Do not error on fields overridden by methods in the mypy plugin by [@Viicos](https://github.com/Viicos) in [#12290](https://github.com/pydantic/pydantic/pull/12290)
  149. ### New Contributors
  150. * [@raspuchin](https://github.com/raspuchin) made their first contribution in [#12106](https://github.com/pydantic/pydantic/pull/12106)
  151. * [@chr1sj0nes](https://github.com/chr1sj0nes) made their first contribution in [#12219](https://github.com/pydantic/pydantic/pull/12219)
  152. ## v2.12.0a1 (2025-07-26)
  153. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.12.0a1)
  154. This is the first alpha release of the upcoming 2.12 release, which adds initial support for Python 3.14.
  155. ### What's Changed
  156. #### New Features
  157. * Add `__pydantic_on_complete__()` hook that is called once model is fully ready to be used by [@DouweM](https://github.com/DouweM) in [#11762](https://github.com/pydantic/pydantic/pull/11762)
  158. * Add initial support for Python 3.14 by [@Viicos](https://github.com/Viicos) in [#11991](https://github.com/pydantic/pydantic/pull/11991)
  159. * Add regex patterns to JSON schema for `Decimal` type by [@Dima-Bulavenko](https://github.com/Dima-Bulavenko) in [#11987](https://github.com/pydantic/pydantic/pull/11987)
  160. * Add support for `doc` attribute on dataclass fields by [@Viicos](https://github.com/Viicos) in [#12077](https://github.com/pydantic/pydantic/pull/12077)
  161. * Add experimental `MISSING` sentinel by [@Viicos](https://github.com/Viicos) in [#11883](https://github.com/pydantic/pydantic/pull/11883)
  162. #### Changes
  163. * Allow config and bases to be specified together in `create_model()` by [@Viicos](https://github.com/Viicos) in [#11714](https://github.com/pydantic/pydantic/pull/11714)
  164. * Move some field logic out of the `GenerateSchema` class by [@Viicos](https://github.com/Viicos) in [#11733](https://github.com/pydantic/pydantic/pull/11733)
  165. * Always make use of `inspect.getsourcelines()` for docstring extraction on Python 3.13 and greater by [@Viicos](https://github.com/Viicos) in [#11829](https://github.com/pydantic/pydantic/pull/11829)
  166. * Only support the latest Mypy version by [@Viicos](https://github.com/Viicos) in [#11832](https://github.com/pydantic/pydantic/pull/11832)
  167. * Do not implicitly convert after model validators to class methods by [@Viicos](https://github.com/Viicos) in [#11957](https://github.com/pydantic/pydantic/pull/11957)
  168. * Refactor `FieldInfo` creation implementation by [@Viicos](https://github.com/Viicos) in [#11898](https://github.com/pydantic/pydantic/pull/11898)
  169. * Make `Secret` covariant by [@bluenote10](https://github.com/bluenote10) in [#12008](https://github.com/pydantic/pydantic/pull/12008)
  170. * Emit warning when field-specific metadata is used in invalid contexts by [@Viicos](https://github.com/Viicos) in [#12028](https://github.com/pydantic/pydantic/pull/12028)
  171. #### Fixes
  172. * Properly fetch plain serializer function when serializing default value in JSON Schema by [@Viicos](https://github.com/Viicos) in [#11721](https://github.com/pydantic/pydantic/pull/11721)
  173. * Remove generics cache workaround by [@Viicos](https://github.com/Viicos) in [#11755](https://github.com/pydantic/pydantic/pull/11755)
  174. * Remove coercion of decimal constraints by [@Viicos](https://github.com/Viicos) in [#11772](https://github.com/pydantic/pydantic/pull/11772)
  175. * Fix crash when expanding root type in the mypy plugin by [@Viicos](https://github.com/Viicos) in [#11735](https://github.com/pydantic/pydantic/pull/11735)
  176. * Only mark model as complete once all fields are complete by [@DouweM](https://github.com/DouweM) in [#11759](https://github.com/pydantic/pydantic/pull/11759)
  177. * Do not provide `field_name` in validator core schemas by [@DouweM](https://github.com/DouweM) in [#11761](https://github.com/pydantic/pydantic/pull/11761)
  178. * Fix issue with recursive generic models by [@Viicos](https://github.com/Viicos) in [#11775](https://github.com/pydantic/pydantic/pull/11775)
  179. * Fix qualified name comparison of private attributes during namespace inspection by [@karta9821](https://github.com/karta9821) in [#11803](https://github.com/pydantic/pydantic/pull/11803)
  180. * Make sure Pydantic dataclasses with slots and `validate_assignment` can be unpickled by [@Viicos](https://github.com/Viicos) in [#11769](https://github.com/pydantic/pydantic/pull/11769)
  181. * Traverse `function-before` schemas during schema gathering by [@Viicos](https://github.com/Viicos) in [#11801](https://github.com/pydantic/pydantic/pull/11801)
  182. * Fix check for stdlib dataclasses by [@Viicos](https://github.com/Viicos) in [#11822](https://github.com/pydantic/pydantic/pull/11822)
  183. * Check if `FieldInfo` is complete after applying type variable map by [@Viicos](https://github.com/Viicos) in [#11855](https://github.com/pydantic/pydantic/pull/11855)
  184. * Do not delete mock validator/serializer in `model_rebuild()` by [@Viicos](https://github.com/Viicos) in [#11890](https://github.com/pydantic/pydantic/pull/11890)
  185. * Rebuild dataclass fields before schema generation by [@Viicos](https://github.com/Viicos) in [#11949](https://github.com/pydantic/pydantic/pull/11949)
  186. * Always store the original field assignment on `FieldInfo` by [@Viicos](https://github.com/Viicos) in [#11946](https://github.com/pydantic/pydantic/pull/11946)
  187. * Do not use deprecated methods as default field values by [@Viicos](https://github.com/Viicos) in [#11914](https://github.com/pydantic/pydantic/pull/11914)
  188. * Allow callable discriminator to be applied on PEP 695 type aliases by [@Viicos](https://github.com/Viicos) in [#11941](https://github.com/pydantic/pydantic/pull/11941)
  189. * Suppress core schema generation warning when using `SkipValidation` by [@ygsh0816](https://github.com/ygsh0816) in [#12002](https://github.com/pydantic/pydantic/pull/12002)
  190. * Do not emit typechecking error for invalid `Field()` default with `validate_default` set to `True` by [@Viicos](https://github.com/Viicos) in [#11988](https://github.com/pydantic/pydantic/pull/11988)
  191. * Refactor logic to support Pydantic's `Field()` function in dataclasses by [@Viicos](https://github.com/Viicos) in [#12051](https://github.com/pydantic/pydantic/pull/12051)
  192. #### Packaging
  193. * Update project metadata to use PEP 639 by [@Viicos](https://github.com/Viicos) in [#11694](https://github.com/pydantic/pydantic/pull/11694)
  194. * Bump `mkdocs-llmstxt` to v0.2.0 by [@Viicos](https://github.com/Viicos) in [#11725](https://github.com/pydantic/pydantic/pull/11725)
  195. * Bump `pydantic-core` to v2.35.1 by [@Viicos](https://github.com/Viicos) in [#11963](https://github.com/pydantic/pydantic/pull/11963)
  196. * Bump dawidd6/action-download-artifact from 10 to 11 by [@dependabot](https://github.com/dependabot)[bot] in [#12033](https://github.com/pydantic/pydantic/pull/12033)
  197. * Bump astral-sh/setup-uv from 5 to 6 by [@dependabot](https://github.com/dependabot)[bot] in [#11826](https://github.com/pydantic/pydantic/pull/11826)
  198. * Update mypy to 1.17.0 by [@Viicos](https://github.com/Viicos) in [#12076](https://github.com/pydantic/pydantic/pull/12076)
  199. ### New Contributors
  200. * [@parth-paradkar](https://github.com/parth-paradkar) made their first contribution in [#11695](https://github.com/pydantic/pydantic/pull/11695)
  201. * [@dqkqd](https://github.com/dqkqd) made their first contribution in [#11739](https://github.com/pydantic/pydantic/pull/11739)
  202. * [@fhightower](https://github.com/fhightower) made their first contribution in [#11722](https://github.com/pydantic/pydantic/pull/11722)
  203. * [@gbaian10](https://github.com/gbaian10) made their first contribution in [#11766](https://github.com/pydantic/pydantic/pull/11766)
  204. * [@DouweM](https://github.com/DouweM) made their first contribution in [#11759](https://github.com/pydantic/pydantic/pull/11759)
  205. * [@bowenliang123](https://github.com/bowenliang123) made their first contribution in [#11719](https://github.com/pydantic/pydantic/pull/11719)
  206. * [@rawwar](https://github.com/rawwar) made their first contribution in [#11799](https://github.com/pydantic/pydantic/pull/11799)
  207. * [@karta9821](https://github.com/karta9821) made their first contribution in [#11803](https://github.com/pydantic/pydantic/pull/11803)
  208. * [@jinnovation](https://github.com/jinnovation) made their first contribution in [#11834](https://github.com/pydantic/pydantic/pull/11834)
  209. * [@zmievsa](https://github.com/zmievsa) made their first contribution in [#11861](https://github.com/pydantic/pydantic/pull/11861)
  210. * [@Otto-AA](https://github.com/Otto-AA) made their first contribution in [#11860](https://github.com/pydantic/pydantic/pull/11860)
  211. * [@ygsh0816](https://github.com/ygsh0816) made their first contribution in [#12002](https://github.com/pydantic/pydantic/pull/12002)
  212. * [@lukland](https://github.com/lukland) made their first contribution in [#12015](https://github.com/pydantic/pydantic/pull/12015)
  213. * [@Dima-Bulavenko](https://github.com/Dima-Bulavenko) made their first contribution in [#11987](https://github.com/pydantic/pydantic/pull/11987)
  214. * [@GSemikozov](https://github.com/GSemikozov) made their first contribution in [#12050](https://github.com/pydantic/pydantic/pull/12050)
  215. * [@hannah-heywa](https://github.com/hannah-heywa) made their first contribution in [#12082](https://github.com/pydantic/pydantic/pull/12082)
  216. ## v2.11.7 (2025-06-14)
  217. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.7)
  218. ### What's Changed
  219. #### Fixes
  220. * Copy `FieldInfo` instance if necessary during `FieldInfo` build by [@Viicos](https://github.com/Viicos) in [#11898](https://github.com/pydantic/pydantic/pull/11898)
  221. ## v2.11.6 (2025-06-13)
  222. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.6)
  223. ### What's Changed
  224. #### Fixes
  225. * Rebuild dataclass fields before schema generation by [@Viicos](https://github.com/Viicos) in [#11949](https://github.com/pydantic/pydantic/pull/11949)
  226. * Always store the original field assignment on `FieldInfo` by [@Viicos](https://github.com/Viicos) in [#11946](https://github.com/pydantic/pydantic/pull/11946)
  227. ## v2.11.5 (2025-05-22)
  228. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.5)
  229. ### What's Changed
  230. #### Fixes
  231. * Check if `FieldInfo` is complete after applying type variable map by [@Viicos](https://github.com/Viicos) in [#11855](https://github.com/pydantic/pydantic/pull/11855)
  232. * Do not delete mock validator/serializer in `model_rebuild()` by [@Viicos](https://github.com/Viicos) in [#11890](https://github.com/pydantic/pydantic/pull/11890)
  233. * Do not duplicate metadata on model rebuild by [@Viicos](https://github.com/Viicos) in [#11902](https://github.com/pydantic/pydantic/pull/11902)
  234. ## v2.11.4 (2025-04-29)
  235. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.4)
  236. ### What's Changed
  237. #### Packaging
  238. * Bump `mkdocs-llmstxt` to v0.2.0 by [@Viicos](https://github.com/Viicos) in [#11725](https://github.com/pydantic/pydantic/pull/11725)
  239. #### Changes
  240. * Allow config and bases to be specified together in `create_model()` by [@Viicos](https://github.com/Viicos) in [#11714](https://github.com/pydantic/pydantic/pull/11714).
  241. This change was backported as it was previously possible (although not meant to be supported)
  242. to provide `model_config` as a field, which would make it possible to provide both configuration
  243. and bases.
  244. #### Fixes
  245. * Remove generics cache workaround by [@Viicos](https://github.com/Viicos) in [#11755](https://github.com/pydantic/pydantic/pull/11755)
  246. * Remove coercion of decimal constraints by [@Viicos](https://github.com/Viicos) in [#11772](https://github.com/pydantic/pydantic/pull/11772)
  247. * Fix crash when expanding root type in the mypy plugin by [@Viicos](https://github.com/Viicos) in [#11735](https://github.com/pydantic/pydantic/pull/11735)
  248. * Fix issue with recursive generic models by [@Viicos](https://github.com/Viicos) in [#11775](https://github.com/pydantic/pydantic/pull/11775)
  249. * Traverse `function-before` schemas during schema gathering by [@Viicos](https://github.com/Viicos) in [#11801](https://github.com/pydantic/pydantic/pull/11801)
  250. ## v2.11.3 (2025-04-08)
  251. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.3)
  252. ### What's Changed
  253. #### Packaging
  254. * Update V1 copy to v1.10.21 by [@Viicos](https://github.com/Viicos) in [#11706](https://github.com/pydantic/pydantic/pull/11706)
  255. #### Fixes
  256. * Preserve field description when rebuilding model fields by [@Viicos](https://github.com/Viicos) in [#11698](https://github.com/pydantic/pydantic/pull/11698)
  257. ## v2.11.2 (2025-04-03)
  258. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.2)
  259. ### What's Changed
  260. #### Fixes
  261. * Bump `pydantic-core` to v2.33.1 by [@Viicos](https://github.com/Viicos) in [#11678](https://github.com/pydantic/pydantic/pull/11678)
  262. * Make sure `__pydantic_private__` exists before setting private attributes by [@Viicos](https://github.com/Viicos) in [#11666](https://github.com/pydantic/pydantic/pull/11666)
  263. * 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)
  264. * Provide the available definitions when applying discriminated unions by [@Viicos](https://github.com/Viicos) in [#11670](https://github.com/pydantic/pydantic/pull/11670)
  265. * 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)
  266. * Mention the attribute name in model fields deprecation message by [@Viicos](https://github.com/Viicos) in [#11674](https://github.com/pydantic/pydantic/pull/11674)
  267. * Properly validate parameterized mappings by [@Viicos](https://github.com/Viicos) in [#11658](https://github.com/pydantic/pydantic/pull/11658)
  268. ## v2.11.1 (2025-03-28)
  269. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.1)
  270. ### What's Changed
  271. #### Fixes
  272. * 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)
  273. ## v2.11.0 (2025-03-27)
  274. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0)
  275. ### What's Changed
  276. Pydantic v2.11 is a version strongly focused on build time performance of Pydantic models (and core schema generation in general).
  277. See the [blog post](https://pydantic.dev/articles/pydantic-v2-11-release) for more details.
  278. #### Packaging
  279. * Bump `pydantic-core` to v2.33.0 by [@Viicos](https://github.com/Viicos) in [#11631](https://github.com/pydantic/pydantic/pull/11631)
  280. #### New Features
  281. * Add `encoded_string()` method to the URL types by [@YassinNouh21](https://github.com/YassinNouh21) in [#11580](https://github.com/pydantic/pydantic/pull/11580)
  282. * Add support for `defer_build` with `@validate_call` decorator by [@Viicos](https://github.com/Viicos) in [#11584](https://github.com/pydantic/pydantic/pull/11584)
  283. * 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)
  284. * 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)
  285. * Add `generate_arguments_schema()` function by [@Viicos](https://github.com/Viicos) in [#11572](https://github.com/pydantic/pydantic/pull/11572)
  286. #### Fixes
  287. * 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)
  288. * 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)
  289. * 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)
  290. * Fix deferred discriminator application logic by [@Viicos](https://github.com/Viicos) in [#11591](https://github.com/pydantic/pydantic/pull/11591)
  291. ### New Contributors
  292. * [@cmenon12](https://github.com/cmenon12) made their first contribution in [#11562](https://github.com/pydantic/pydantic/pull/11562)
  293. * [@Jeukoh](https://github.com/Jeukoh) made their first contribution in [#11611](https://github.com/pydantic/pydantic/pull/11611)
  294. ## v2.11.0b2 (2025-03-17)
  295. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0b2)
  296. ### What's Changed
  297. #### Packaging
  298. * Bump `pydantic-core` to v2.32.0 by [@Viicos](https://github.com/Viicos) in [#11567](https://github.com/pydantic/pydantic/pull/11567)
  299. #### New Features
  300. * Add experimental support for free threading by [@Viicos](https://github.com/Viicos) in [#11516](https://github.com/pydantic/pydantic/pull/11516)
  301. #### Fixes
  302. * 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)
  303. ### New Contributors
  304. * [@joren485](https://github.com/joren485) made their first contribution in [#11547](https://github.com/pydantic/pydantic/pull/11547)
  305. ## v2.11.0b1 (2025-03-06)
  306. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0b1)
  307. ### What's Changed
  308. #### Packaging
  309. * Add a `check_pydantic_core_version()` function by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11324
  310. * Remove `greenlet` development dependency by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11351
  311. * Use the `typing-inspection` library by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11479
  312. * Bump `pydantic-core` to `v2.31.1` by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11526
  313. #### New Features
  314. * 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
  315. * Add a `default_factory_takes_validated_data` property to `FieldInfo` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11034
  316. * 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
  317. * Properly support PEP 695 generics syntax by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11189
  318. * Properly support type variable defaults by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11332
  319. * Add support for validating v6, v7, v8 UUIDs by [@astei](https://github.com/astei) in https://github.com/pydantic/pydantic/pull/11436
  320. * Improve alias configuration APIs by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11468
  321. #### Changes
  322. * Rework `create_model` field definitions format by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11032
  323. * 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
  324. * Deprecate accessing `model_fields` and `model_computed_fields` on instances by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11169
  325. * **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
  326. * Remove Python 3.8 Support by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11258
  327. * Optimize calls to `get_type_ref` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/10863
  328. * Disable `pydantic-core` core schema validation by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11271
  329. #### Performance
  330. * Only evaluate `FieldInfo` annotations if required during schema building by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/10769
  331. * Improve `__setattr__` performance of Pydantic models by caching setter functions by [@MarkusSintonen](https://github.com/MarkusSintonen) in https://github.com/pydantic/pydantic/pull/10868
  332. * Improve annotation application performance by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11186
  333. * Improve performance of `_typing_extra` module by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11255
  334. * Refactor and optimize schema cleaning logic by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11244
  335. * 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
  336. * 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
  337. * Reuse cached core schemas for parametrized generic Pydantic models by [@MarkusSintonen](https://github.com/MarkusSintonen) in https://github.com/pydantic/pydantic/pull/11434
  338. #### Fixes
  339. * Improve `TypeAdapter` instance repr by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/10872
  340. * Use the correct frame when instantiating a parametrized `TypeAdapter` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/10893
  341. * 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
  342. * Recursively unpack `Literal` values if using PEP 695 type aliases by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11114
  343. * 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
  344. * Remove unused `_extract_get_pydantic_json_schema()` parameter by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11155
  345. * Improve discriminated union error message for invalid union variants by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11161
  346. * Unpack PEP 695 type aliases if using the `Annotated` form by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11109
  347. * Add missing stacklevel in `deprecated_instance_property` warning by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11200
  348. * Copy `WithJsonSchema` schema to avoid sharing mutated data by [@thejcannon](https://github.com/thejcannon) in https://github.com/pydantic/pydantic/pull/11014
  349. * 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
  350. * Add discriminated union related metadata entries to the `CoreMetadata` definition by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11216
  351. * Consolidate schema definitions logic in the `_Definitions` class by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11208
  352. * 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
  353. * Fix various issues with dataclasses and `use_attribute_docstrings` by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11246
  354. * 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
  355. * Add support for `validation_alias` in the mypy plugin by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11295
  356. * Fix JSON Schema reference collection with `"examples"` keys by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11305
  357. * 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
  358. * Simplify `GenerateJsonSchema.literal_schema()` implementation by [@misrasaurabh1](https://github.com/misrasaurabh1) in https://github.com/pydantic/pydantic/pull/11321
  359. * Add additional allowed schemes for `ClickHouseDsn` by [@Maze21127](https://github.com/Maze21127) in https://github.com/pydantic/pydantic/pull/11319
  360. * Coerce decimal constraints to `Decimal` instances by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11350
  361. * Use the correct JSON Schema mode when handling function schemas by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11367
  362. * Improve exception message when encountering recursion errors during type evaluation by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11356
  363. * Always include `additionalProperties: True` for arbitrary dictionary schemas by [@austinyu](https://github.com/austinyu) in https://github.com/pydantic/pydantic/pull/11392
  364. * Expose `fallback` parameter in serialization methods by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11398
  365. * Fix path serialization behavior by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11416
  366. * Do not reuse validators and serializers during model rebuild by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11429
  367. * Collect model fields when rebuilding a model by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11388
  368. * Allow cached properties to be altered on frozen models by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11432
  369. * Fix tuple serialization for `Sequence` types by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11435
  370. * 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
  371. * Allow callable instances to be used as serializers by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11451
  372. * 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
  373. * 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
  374. * Support strict specification on union member types by [@sydney-runkle](https://github.com/sydney-runkle) in https://github.com/pydantic/pydantic/pull/11481
  375. * 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
  376. * 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
  377. * Support type variable defaults referencing other type variables by [@Viicos](https://github.com/Viicos) in https://github.com/pydantic/pydantic/pull/11520
  378. * Fix `ValueError` on year zero by [@davidhewitt](https://github.com/davidhewitt) in https://github.com/pydantic/pydantic-core/pull/1583
  379. * `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
  380. ## New Contributors
  381. * [@FyZzyss](https://github.com/FyZzyss) made their first contribution in https://github.com/pydantic/pydantic/pull/10789
  382. * [@tamird](https://github.com/tamird) made their first contribution in https://github.com/pydantic/pydantic/pull/10948
  383. * [@felixxm](https://github.com/felixxm) made their first contribution in https://github.com/pydantic/pydantic/pull/11077
  384. * [@alexprabhat99](https://github.com/alexprabhat99) made their first contribution in https://github.com/pydantic/pydantic/pull/11082
  385. * [@Kharianne](https://github.com/Kharianne) made their first contribution in https://github.com/pydantic/pydantic/pull/11111
  386. * [@mdaffad](https://github.com/mdaffad) made their first contribution in https://github.com/pydantic/pydantic/pull/11177
  387. * [@thejcannon](https://github.com/thejcannon) made their first contribution in https://github.com/pydantic/pydantic/pull/11014
  388. * [@thomasfrimannkoren](https://github.com/thomasfrimannkoren) made their first contribution in https://github.com/pydantic/pydantic/pull/11251
  389. * [@usernameMAI](https://github.com/usernameMAI) made their first contribution in https://github.com/pydantic/pydantic/pull/11275
  390. * [@ananiavito](https://github.com/ananiavito) made their first contribution in https://github.com/pydantic/pydantic/pull/11302
  391. * [@pawamoy](https://github.com/pawamoy) made their first contribution in https://github.com/pydantic/pydantic/pull/11311
  392. * [@Maze21127](https://github.com/Maze21127) made their first contribution in https://github.com/pydantic/pydantic/pull/11319
  393. * [@kauabh](https://github.com/kauabh) made their first contribution in https://github.com/pydantic/pydantic/pull/11369
  394. * [@jaceklaskowski](https://github.com/jaceklaskowski) made their first contribution in https://github.com/pydantic/pydantic/pull/11353
  395. * [@tmpbeing](https://github.com/tmpbeing) made their first contribution in https://github.com/pydantic/pydantic/pull/11375
  396. * [@petyosi](https://github.com/petyosi) made their first contribution in https://github.com/pydantic/pydantic/pull/11405
  397. * [@austinyu](https://github.com/austinyu) made their first contribution in https://github.com/pydantic/pydantic/pull/11392
  398. * [@mikeedjones](https://github.com/mikeedjones) made their first contribution in https://github.com/pydantic/pydantic/pull/11402
  399. * [@astei](https://github.com/astei) made their first contribution in https://github.com/pydantic/pydantic/pull/11436
  400. * [@dsayling](https://github.com/dsayling) made their first contribution in https://github.com/pydantic/pydantic/pull/11522
  401. * [@sobolevn](https://github.com/sobolevn) made their first contribution in https://github.com/pydantic/pydantic-core/pull/1645
  402. ## v2.11.0a2 (2025-02-10)
  403. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0a2)
  404. ### What's Changed
  405. Pydantic v2.11 is a version strongly focused on build time performance of Pydantic models (and core schema generation in general).
  406. This is another early alpha release, meant to collect early feedback from users having issues with core schema builds.
  407. #### Packaging
  408. * 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)
  409. * Bump `pydantic-core` to v2.29.0 by [@mikeedjones](https://github.com/mikeedjones) in [#11402](https://github.com/pydantic/pydantic/pull/11402)
  410. * Use locally-built rust with symbols & pgo by [@davidhewitt](https://github.com/davidhewitt) in [#11403](https://github.com/pydantic/pydantic/pull/11403)
  411. #### Performance
  412. * 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)
  413. #### Fixes
  414. * 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)
  415. * Fix JSON Schema reference logic with `examples` keys by [@Viicos](https://github.com/Viicos) in [#11366](https://github.com/pydantic/pydantic/pull/11366)
  416. * 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)
  417. * Always include `additionalProperties: True` for arbitrary dictionary schemas by [@austinyu](https://github.com/austinyu) in [#11392](https://github.com/pydantic/pydantic/pull/11392)
  418. * Expose `fallback` parameter in serialization methods by [@Viicos](https://github.com/Viicos) in [#11398](https://github.com/pydantic/pydantic/pull/11398)
  419. * Fix path serialization behavior by [@sydney-runkle](https://github.com/sydney-runkle) in [#11416](https://github.com/pydantic/pydantic/pull/11416)
  420. ### New Contributors
  421. * [@kauabh](https://github.com/kauabh) made their first contribution in [#11369](https://github.com/pydantic/pydantic/pull/11369)
  422. * [@jaceklaskowski](https://github.com/jaceklaskowski) made their first contribution in [#11353](https://github.com/pydantic/pydantic/pull/11353)
  423. * [@tmpbeing](https://github.com/tmpbeing) made their first contribution in [#11375](https://github.com/pydantic/pydantic/pull/11375)
  424. * [@petyosi](https://github.com/petyosi) made their first contribution in [#11405](https://github.com/pydantic/pydantic/pull/11405)
  425. * [@austinyu](https://github.com/austinyu) made their first contribution in [#11392](https://github.com/pydantic/pydantic/pull/11392)
  426. * [@mikeedjones](https://github.com/mikeedjones) made their first contribution in [#11402](https://github.com/pydantic/pydantic/pull/11402)
  427. ## v2.11.0a1 (2025-01-30)
  428. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.11.0a1)
  429. ### What's Changed
  430. Pydantic v2.11 is a version strongly focused on build time performance of Pydantic models (and core schema generation in general).
  431. This is an early alpha release, meant to collect early feedback from users having issues with core schema builds.
  432. #### Packaging
  433. * Bump dawidd6/action-download-artifact from 6 to 7 by [@dependabot](https://github.com/dependabot) in [#11018](https://github.com/pydantic/pydantic/pull/11018)
  434. * Re-enable memray related tests on Python 3.12+ by [@Viicos](https://github.com/Viicos) in [#11191](https://github.com/pydantic/pydantic/pull/11191)
  435. * Bump astral-sh/setup-uv to 5 by [@dependabot](https://github.com/dependabot) in [#11205](https://github.com/pydantic/pydantic/pull/11205)
  436. * Bump `ruff` to v0.9.0 by [@sydney-runkle](https://github.com/sydney-runkle) in [#11254](https://github.com/pydantic/pydantic/pull/11254)
  437. * Regular `uv.lock` deps update by [@sydney-runkle](https://github.com/sydney-runkle) in [#11333](https://github.com/pydantic/pydantic/pull/11333)
  438. * Add a `check_pydantic_core_version()` function by [@Viicos](https://github.com/Viicos) in [#11324](https://github.com/pydantic/pydantic/pull/11324)
  439. * Remove `greenlet` development dependency by [@Viicos](https://github.com/Viicos) in [#11351](https://github.com/pydantic/pydantic/pull/11351)
  440. * Bump `pydantic-core` to v2.28.0 by [@Viicos](https://github.com/Viicos) in [#11364](https://github.com/pydantic/pydantic/pull/11364)
  441. #### New Features
  442. * 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)
  443. * 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)
  444. * 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)
  445. * Properly support PEP 695 generics syntax by [@Viicos](https://github.com/Viicos) in [#11189](https://github.com/pydantic/pydantic/pull/11189)
  446. * Properly support type variable defaults by [@Viicos](https://github.com/Viicos) in [#11332](https://github.com/pydantic/pydantic/pull/11332)
  447. #### Changes
  448. * Rework `create_model` field definitions format by [@Viicos](https://github.com/Viicos) in [#11032](https://github.com/pydantic/pydantic/pull/11032)
  449. * 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)
  450. * 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)
  451. * 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)
  452. * Move `deque` schema gen to `GenerateSchema` class by [@sydney-runkle](https://github.com/sydney-runkle) in [#11239](https://github.com/pydantic/pydantic/pull/11239)
  453. * 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)
  454. * Remove Python 3.8 Support by [@sydney-runkle](https://github.com/sydney-runkle) in [#11258](https://github.com/pydantic/pydantic/pull/11258)
  455. * Disable `pydantic-core` core schema validation by [@sydney-runkle](https://github.com/sydney-runkle) in [#11271](https://github.com/pydantic/pydantic/pull/11271)
  456. #### Performance
  457. * Only evaluate `FieldInfo` annotations if required during schema building by [@Viicos](https://github.com/Viicos) in [#10769](https://github.com/pydantic/pydantic/pull/10769)
  458. * Optimize calls to `get_type_ref` by [@Viicos](https://github.com/Viicos) in [#10863](https://github.com/pydantic/pydantic/pull/10863)
  459. * 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)
  460. * Improve annotation application performance by [@Viicos](https://github.com/Viicos) in [#11186](https://github.com/pydantic/pydantic/pull/11186)
  461. * Improve performance of `_typing_extra` module by [@Viicos](https://github.com/Viicos) in [#11255](https://github.com/pydantic/pydantic/pull/11255)
  462. * 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)
  463. #### Fixes
  464. * Add validation tests for `_internal/_validators.py` by [@tkasuz](https://github.com/tkasuz) in [#10763](https://github.com/pydantic/pydantic/pull/10763)
  465. * Improve `TypeAdapter` instance repr by [@sydney-runkle](https://github.com/sydney-runkle) in [#10872](https://github.com/pydantic/pydantic/pull/10872)
  466. * 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)
  467. * Re-enable all FastAPI tests by [@tamird](https://github.com/tamird) in [#10948](https://github.com/pydantic/pydantic/pull/10948)
  468. * Fix typo in HISTORY.md. by [@felixxm](https://github.com/felixxm) in [#11077](https://github.com/pydantic/pydantic/pull/11077)
  469. * 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)
  470. * 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)
  471. * 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)
  472. * Remove unused `_extract_get_pydantic_json_schema()` parameter by [@Viicos](https://github.com/Viicos) in [#11155](https://github.com/pydantic/pydantic/pull/11155)
  473. * 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)
  474. * Fix conditional expressions syntax for third-party tests by [@Viicos](https://github.com/Viicos) in [#11162](https://github.com/pydantic/pydantic/pull/11162)
  475. * Move FastAPI tests to third-party workflow by [@Viicos](https://github.com/Viicos) in [#11164](https://github.com/pydantic/pydantic/pull/11164)
  476. * Improve discriminated union error message for invalid union variants by [@Viicos](https://github.com/Viicos) in [#11161](https://github.com/pydantic/pydantic/pull/11161)
  477. * 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)
  478. * 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)
  479. * Add pandera third-party tests by [@Viicos](https://github.com/Viicos) in [#11193](https://github.com/pydantic/pydantic/pull/11193)
  480. * Add ODMantic third-party tests by [@sydney-runkle](https://github.com/sydney-runkle) in [#11197](https://github.com/pydantic/pydantic/pull/11197)
  481. * Add missing stacklevel in `deprecated_instance_property` warning by [@Viicos](https://github.com/Viicos) in [#11200](https://github.com/pydantic/pydantic/pull/11200)
  482. * Copy `WithJsonSchema` schema to avoid sharing mutated data by [@thejcannon](https://github.com/thejcannon) in [#11014](https://github.com/pydantic/pydantic/pull/11014)
  483. * 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)
  484. * Re-enable Beanie third-party tests by [@Viicos](https://github.com/Viicos) in [#11214](https://github.com/pydantic/pydantic/pull/11214)
  485. * 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)
  486. * Consolidate schema definitions logic in the `_Definitions` class by [@Viicos](https://github.com/Viicos) in [#11208](https://github.com/pydantic/pydantic/pull/11208)
  487. * 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)
  488. * Fix various issues with dataclasses and `use_attribute_docstrings` by [@Viicos](https://github.com/Viicos) in [#11246](https://github.com/pydantic/pydantic/pull/11246)
  489. * 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)
  490. * Fix two misplaced sentences in validation errors documentation by [@ananiavito](https://github.com/ananiavito) in [#11302](https://github.com/pydantic/pydantic/pull/11302)
  491. * Fix mkdocstrings inventory example in documentation by [@pawamoy](https://github.com/pawamoy) in [#11311](https://github.com/pydantic/pydantic/pull/11311)
  492. * Add support for `validation_alias` in the mypy plugin by [@Viicos](https://github.com/Viicos) in [#11295](https://github.com/pydantic/pydantic/pull/11295)
  493. * 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)
  494. * Simplify `GenerateJsonSchema.literal_schema()` implementation by [@misrasaurabh1](https://github.com/misrasaurabh1) in [#11321](https://github.com/pydantic/pydantic/pull/11321)
  495. * Add additional allowed schemes for `ClickHouseDsn` by [@Maze21127](https://github.com/Maze21127) in [#11319](https://github.com/pydantic/pydantic/pull/11319)
  496. * Coerce decimal constraints to `Decimal` instances by [@Viicos](https://github.com/Viicos) in [#11350](https://github.com/pydantic/pydantic/pull/11350)
  497. * Fix `ValueError` on year zero by [@davidhewitt](https://github.com/davidhewitt) in [pydantic-core#1583](https://github.com/pydantic/pydantic-core/pull/1583)
  498. ### New Contributors
  499. * [@FyZzyss](https://github.com/FyZzyss) made their first contribution in [#10789](https://github.com/pydantic/pydantic/pull/10789)
  500. * [@tamird](https://github.com/tamird) made their first contribution in [#10948](https://github.com/pydantic/pydantic/pull/10948)
  501. * [@felixxm](https://github.com/felixxm) made their first contribution in [#11077](https://github.com/pydantic/pydantic/pull/11077)
  502. * [@alexprabhat99](https://github.com/alexprabhat99) made their first contribution in [#11082](https://github.com/pydantic/pydantic/pull/11082)
  503. * [@Kharianne](https://github.com/Kharianne) made their first contribution in [#11111](https://github.com/pydantic/pydantic/pull/11111)
  504. * [@mdaffad](https://github.com/mdaffad) made their first contribution in [#11177](https://github.com/pydantic/pydantic/pull/11177)
  505. * [@thejcannon](https://github.com/thejcannon) made their first contribution in [#11014](https://github.com/pydantic/pydantic/pull/11014)
  506. * [@thomasfrimannkoren](https://github.com/thomasfrimannkoren) made their first contribution in [#11251](https://github.com/pydantic/pydantic/pull/11251)
  507. * [@usernameMAI](https://github.com/usernameMAI) made their first contribution in [#11275](https://github.com/pydantic/pydantic/pull/11275)
  508. * [@ananiavito](https://github.com/ananiavito) made their first contribution in [#11302](https://github.com/pydantic/pydantic/pull/11302)
  509. * [@pawamoy](https://github.com/pawamoy) made their first contribution in [#11311](https://github.com/pydantic/pydantic/pull/11311)
  510. * [@Maze21127](https://github.com/Maze21127) made their first contribution in [#11319](https://github.com/pydantic/pydantic/pull/11319)
  511. ## v2.10.6 (2025-01-23)
  512. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.6)
  513. ### What's Changed
  514. #### Fixes
  515. * Fix JSON Schema reference collection with `'examples'` keys by [@Viicos](https://github.com/Viicos) in [#11325](https://github.com/pydantic/pydantic/pull/11325)
  516. * Fix url python serialization by [@sydney-runkle](https://github.com/sydney-runkle) in [#11331](https://github.com/pydantic/pydantic/pull/11331)
  517. ## v2.10.5 (2025-01-08)
  518. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.5)
  519. ### What's Changed
  520. #### Fixes
  521. * Remove custom MRO implementation of Pydantic models by [@Viicos](https://github.com/Viicos) in [#11184](https://github.com/pydantic/pydantic/pull/11184)
  522. * Fix URL serialization for unions by [@sydney-runkle](https://github.com/sydney-runkle) in [#11233](https://github.com/pydantic/pydantic/pull/11233)
  523. ## v2.10.4 (2024-12-18)
  524. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.4)
  525. ### What's Changed
  526. #### Packaging
  527. * Bump `pydantic-core` to v2.27.2 by [@davidhewitt](https://github.com/davidhewitt) in [#11138](https://github.com/pydantic/pydantic/pull/11138)
  528. #### Fixes
  529. * Fix for comparison of `AnyUrl` objects by [@alexprabhat99](https://github.com/alexprabhat99) in [#11082](https://github.com/pydantic/pydantic/pull/11082)
  530. * 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)
  531. * Include JSON Schema input core schema in function schemas by [@Viicos](https://github.com/Viicos) in [#11085](https://github.com/pydantic/pydantic/pull/11085)
  532. * Add `len` to `_BaseUrl` to avoid TypeError by [@Kharianne](https://github.com/Kharianne) in [#11111](https://github.com/pydantic/pydantic/pull/11111)
  533. * 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)
  534. ### New Contributors
  535. * [@FyZzyss](https://github.com/FyZzyss) made their first contribution in [#10789](https://github.com/pydantic/pydantic/pull/10789)
  536. * [@tamird](https://github.com/tamird) made their first contribution in [#10948](https://github.com/pydantic/pydantic/pull/10948)
  537. * [@felixxm](https://github.com/felixxm) made their first contribution in [#11077](https://github.com/pydantic/pydantic/pull/11077)
  538. * [@alexprabhat99](https://github.com/alexprabhat99) made their first contribution in [#11082](https://github.com/pydantic/pydantic/pull/11082)
  539. * [@Kharianne](https://github.com/Kharianne) made their first contribution in [#11111](https://github.com/pydantic/pydantic/pull/11111)
  540. ## v2.10.3 (2024-12-03)
  541. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.3)
  542. ### What's Changed
  543. #### Fixes
  544. * 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)
  545. * 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)
  546. * 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)
  547. * 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)
  548. * 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)
  549. * Fix url json schema in `serialization` mode by [@sydney-runkle](https://github.com/sydney-runkle) in [#11035](https://github.com/pydantic/pydantic/pull/11035)
  550. ## v2.10.2 (2024-11-25)
  551. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.2)
  552. ### What's Changed
  553. #### Fixes
  554. * Only evaluate FieldInfo annotations if required during schema building by [@Viicos](https://github.com/Viicos) in [#10769](https://github.com/pydantic/pydantic/pull/10769)
  555. * Do not evaluate annotations for private fields by [@Viicos](https://github.com/Viicos) in [#10962](https://github.com/pydantic/pydantic/pull/10962)
  556. * 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)
  557. * 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)
  558. * Add hashing support for URL types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10975](https://github.com/pydantic/pydantic/pull/10975)
  559. * Hide `BaseModel.__replace__` definition from type checkers by [@Viicos](https://github.com/Viicos) in [#10979](https://github.com/pydantic/pydantic/pull/10979)
  560. ## v2.10.1 (2024-11-21)
  561. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.1)
  562. ### What's Changed
  563. #### Packaging
  564. * 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)
  565. #### Fixes
  566. * Use the correct frame when instantiating a parametrized `TypeAdapter` by [@Viicos](https://github.com/Viicos) in [#10893](https://github.com/pydantic/pydantic/pull/10893)
  567. * 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)
  568. * 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)
  569. * 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)
  570. * 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)
  571. * Fix URL constraint application by [@sydney-runkle](https://github.com/sydney-runkle) in [#10922](https://github.com/pydantic/pydantic/pull/10922)
  572. * Fix URL equality with different validation methods by [@sydney-runkle](https://github.com/sydney-runkle) in [#10934](https://github.com/pydantic/pydantic/pull/10934)
  573. * Fix JSON schema title when specified as `''` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10936](https://github.com/pydantic/pydantic/pull/10936)
  574. * 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)
  575. ### New Contributors
  576. ## v2.10.0 (2024-11-20)
  577. The code released in v2.10.0 is practically identical to that of v2.10.0b2.
  578. [GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.0)
  579. See the [v2.10 release blog post](https://pydantic.dev/articles/pydantic-v2-10-release) for the highlights!
  580. ### What's Changed
  581. #### Packaging
  582. * Bump `pydantic-core` to `v2.27.0` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10825](https://github.com/pydantic/pydantic/pull/10825)
  583. * Replaced pdm with uv by [@frfahim](https://github.com/frfahim) in [#10727](https://github.com/pydantic/pydantic/pull/10727)
  584. #### New Features
  585. * Support `fractions.Fraction` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10318](https://github.com/pydantic/pydantic/pull/10318)
  586. * Support `Hashable` for json validation by [@sydney-runkle](https://github.com/sydney-runkle) in [#10324](https://github.com/pydantic/pydantic/pull/10324)
  587. * Add a `SocketPath` type for `linux` systems by [@theunkn0wn1](https://github.com/theunkn0wn1) in [#10378](https://github.com/pydantic/pydantic/pull/10378)
  588. * Allow arbitrary refs in JSON schema `examples` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10417](https://github.com/pydantic/pydantic/pull/10417)
  589. * Support `defer_build` for Pydantic dataclasses by [@Viicos](https://github.com/Viicos) in [#10313](https://github.com/pydantic/pydantic/pull/10313)
  590. * 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)
  591. * 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)
  592. * Support compiled patterns in `protected_namespaces` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10522](https://github.com/pydantic/pydantic/pull/10522)
  593. * Add support for `propertyNames` in JSON schema by [@FlorianSW](https://github.com/FlorianSW) in [#10478](https://github.com/pydantic/pydantic/pull/10478)
  594. * 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)
  595. * 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)
  596. * Add runtime validation of `@validate_call` callable argument by [@kc0506](https://github.com/kc0506) in [#10627](https://github.com/pydantic/pydantic/pull/10627)
  597. * Add `experimental_allow_partial` support by [@samuelcolvin](https://github.com/samuelcolvin) in [#10748](https://github.com/pydantic/pydantic/pull/10748)
  598. * Support default factories taking validated data as an argument by [@Viicos](https://github.com/Viicos) in [#10678](https://github.com/pydantic/pydantic/pull/10678)
  599. * Allow subclassing `ValidationError` and `PydanticCustomError` by [@Youssefares](https://github.com/Youssefares) in [pydantic/pydantic-core#1413](https://github.com/pydantic/pydantic-core/pull/1413)
  600. * 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)
  601. * 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)
  602. * Improve `TypeAdapter` instance repr by [@sydney-runkle](https://github.com/sydney-runkle) in [#10872](https://github.com/pydantic/pydantic/pull/10872)
  603. #### Changes
  604. * 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)
  605. * 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)
  606. * Fix `mro` of generic subclass by [@kc0506](https://github.com/kc0506) in [#10100](https://github.com/pydantic/pydantic/pull/10100)
  607. * Strip whitespaces on JSON Schema title generation by [@sydney-runkle](https://github.com/sydney-runkle) in [#10404](https://github.com/pydantic/pydantic/pull/10404)
  608. * Use `b64decode` and `b64encode` for `Base64Bytes` type by [@sydney-runkle](https://github.com/sydney-runkle) in [#10486](https://github.com/pydantic/pydantic/pull/10486)
  609. * Relax protected namespace config default by [@sydney-runkle](https://github.com/sydney-runkle) in [#10441](https://github.com/pydantic/pydantic/pull/10441)
  610. * 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)
  611. * 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)
  612. * Recommend against using `Ellipsis` (...) with `Field` by [@Viicos](https://github.com/Viicos) in [#10661](https://github.com/pydantic/pydantic/pull/10661)
  613. * 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)
  614. * Change JSON schema generation of `Literal`s and `Enums` by [@Viicos](https://github.com/Viicos) in [#10692](https://github.com/pydantic/pydantic/pull/10692)
  615. * 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)
  616. * 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)
  617. * Support dates all the way to 1BC by [@changhc](https://github.com/changhc) in [pydantic/speedate#77](https://github.com/pydantic/speedate/pull/77)
  618. #### Performance
  619. * Schema cleaning: skip unnecessary copies during schema walking by [@Viicos](https://github.com/Viicos) in [#10286](https://github.com/pydantic/pydantic/pull/10286)
  620. * Refactor namespace logic for annotations evaluation by [@Viicos](https://github.com/Viicos) in [#10530](https://github.com/pydantic/pydantic/pull/10530)
  621. * Improve email regexp on edge cases by [@AlekseyLobanov](https://github.com/AlekseyLobanov) in [#10601](https://github.com/pydantic/pydantic/pull/10601)
  622. * `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)
  623. #### Fixes
  624. * Remove guarding check on `computed_field` with `field_serializer` by [@nix010](https://github.com/nix010) in [#10390](https://github.com/pydantic/pydantic/pull/10390)
  625. * Fix `Predicate` issue in `v2.9.0` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10321](https://github.com/pydantic/pydantic/pull/10321)
  626. * Fixing `annotated-types` bound by [@sydney-runkle](https://github.com/sydney-runkle) in [#10327](https://github.com/pydantic/pydantic/pull/10327)
  627. * 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)
  628. * Use correct types namespace when building `namedtuple` core schemas by [@Viicos](https://github.com/Viicos) in [#10337](https://github.com/pydantic/pydantic/pull/10337)
  629. * Fix evaluation of stringified annotations during namespace inspection by [@Viicos](https://github.com/Viicos) in [#10347](https://github.com/pydantic/pydantic/pull/10347)
  630. * Fix `IncEx` type alias definition by [@Viicos](https://github.com/Viicos) in [#10339](https://github.com/pydantic/pydantic/pull/10339)
  631. * 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)
  632. * Fix nested type statement by [@kc0506](https://github.com/kc0506) in [#10369](https://github.com/pydantic/pydantic/pull/10369)
  633. * Improve typing of `ModelMetaclass.mro` by [@Viicos](https://github.com/Viicos) in [#10372](https://github.com/pydantic/pydantic/pull/10372)
  634. * Fix class access of deprecated `computed_field`s by [@Viicos](https://github.com/Viicos) in [#10391](https://github.com/pydantic/pydantic/pull/10391)
  635. * 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)
  636. * 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)
  637. * Fix `ZoneInfo` with various invalid types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10408](https://github.com/pydantic/pydantic/pull/10408)
  638. * Fix `PydanticUserError` on empty `model_config` with annotations by [@cdwilson](https://github.com/cdwilson) in [#10412](https://github.com/pydantic/pydantic/pull/10412)
  639. * 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)
  640. * Fix serialization schema generation when using `PlainValidator` by [@Viicos](https://github.com/Viicos) in [#10427](https://github.com/pydantic/pydantic/pull/10427)
  641. * Fix schema generation error when serialization schema holds references by [@Viicos](https://github.com/Viicos) in [#10444](https://github.com/pydantic/pydantic/pull/10444)
  642. * 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)
  643. * Fix recursive arguments in `Representation` by [@Viicos](https://github.com/Viicos) in [#10480](https://github.com/pydantic/pydantic/pull/10480)
  644. * Fix representation for builtin function types by [@kschwab](https://github.com/kschwab) in [#10479](https://github.com/pydantic/pydantic/pull/10479)
  645. * 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)
  646. * 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)
  647. * Fix `stacklevel` on deprecation warnings for `BaseModel` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10520](https://github.com/pydantic/pydantic/pull/10520)
  648. * Fix warning `stacklevel` in `BaseModel.__init__` by [@Viicos](https://github.com/Viicos) in [#10526](https://github.com/pydantic/pydantic/pull/10526)
  649. * 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)
  650. * 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)
  651. * 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)
  652. * 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)
  653. * Support constraint application for `Base64Etc` types by [@sydney-runkle](https://github.com/sydney-runkle) in [#10584](https://github.com/pydantic/pydantic/pull/10584)
  654. * Fix `validate_call` ignoring `Field` in `Annotated` by [@kc0506](https://github.com/kc0506) in [#10610](https://github.com/pydantic/pydantic/pull/10610)
  655. * Raise an error when `Self` is invalid by [@kc0506](https://github.com/kc0506) in [#10609](https://github.com/pydantic/pydantic/pull/10609)
  656. * 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)
  657. * Tweak type alias logic by [@kc0506](https://github.com/kc0506) in [#10643](https://github.com/pydantic/pydantic/pull/10643)
  658. * 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)
  659. * Use overloads for `Field` and `PrivateAttr` functions by [@Viicos](https://github.com/Viicos) in [#10651](https://github.com/pydantic/pydantic/pull/10651)
  660. * Clean up the `mypy` plugin implementation by [@Viicos](https://github.com/Viicos) in [#10669](https://github.com/pydantic/pydantic/pull/10669)
  661. * Properly check for `typing_extensions` variant of `TypeAliasType` by [@Daraan](https://github.com/Daraan) in [#10713](https://github.com/pydantic/pydantic/pull/10713)
  662. * Allow any mapping in `BaseModel.model_copy()` by [@Viicos](https://github.com/Viicos) in [#10751](https://github.com/pydantic/pydantic/pull/10751)
  663. * Fix `isinstance` behavior for urls by [@sydney-runkle](https://github.com/sydney-runkle) in [#10766](https://github.com/pydantic/pydantic/pull/10766)
  664. * Ensure `cached_property` can be set on Pydantic models by [@Viicos](https://github.com/Viicos) in [#10774](https://github.com/pydantic/pydantic/pull/10774)
  665. * 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)
  666. * 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)
  667. * 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)
  668. * 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)
  669. * Refactor `_typing_extra` module by [@Viicos](https://github.com/Viicos) in [#10725](https://github.com/pydantic/pydantic/pull/10725)
  670. * Support intuitive equality for urls by [@sydney-runkle](https://github.com/sydney-runkle) in [#10798](https://github.com/pydantic/pydantic/pull/10798)
  671. * Add `bytearray` to `TypeAdapter.validate_json` signature by [@samuelcolvin](https://github.com/samuelcolvin) in [#10802](https://github.com/pydantic/pydantic/pull/10802)
  672. * 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)
  673. * Fix circular import with `validate_call` by [@sydney-runkle](https://github.com/sydney-runkle) in [#10807](https://github.com/pydantic/pydantic/pull/10807)
  674. * 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)
  675. * Fix `IncEx` type alias to be compatible with mypy by [@Viicos](https://github.com/Viicos) in [#10813](https://github.com/pydantic/pydantic/pull/10813)
  676. * Make `__signature__` a lazy property, do not deepcopy defaults by [@Viicos](https://github.com/Viicos) in [#10818](https://github.com/pydantic/pydantic/pull/10818)
  677. * Make `__signature__` lazy for dataclasses, too by [@sydney-runkle](https://github.com/sydney-runkle) in [#10832](https://github.com/pydantic/pydantic/pull/10832)
  678. * 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)
  679. ### New Contributors
  680. * [@jakob-keller](https://github.com/jakob-keller) made their first contribution in [#10331](https://github.com/pydantic/pydantic/pull/10331)
  681. * [@MovisLi](https://github.com/MovisLi) made their first contribution in [#10374](https://github.com/pydantic/pydantic/pull/10374)
  682. * [@joaopalmeiro](https://github.com/joaopalmeiro) made their first contribution in [#10405](https://github.com/pydantic/pydantic/pull/10405)
  683. * [@theunkn0wn1](https://github.com/theunkn0wn1) made their first contribution in [#10378](https://github.com/pydantic/pydantic/pull/10378)
  684. * [@cdwilson](https://github.com/cdwilson) made their first contribution in [#10412](https://github.com/pydantic/pydantic/pull/10412)
  685. * [@dlax](https://github.com/dlax) made their first contribution in [#10421](https://github.com/pydantic/pydantic/pull/10421)
  686. * [@kschwab](https://github.com/kschwab) made their first contribution in [#10479](https://github.com/pydantic/pydantic/pull/10479)
  687. * [@santibreo](https://github.com/santibreo) made their first contribution in [#10453](https://github.com/pydantic/pydantic/pull/10453)
  688. * [@FlorianSW](https://github.com/FlorianSW) made their first contribution in [#10478](https://github.com/pydantic/pydantic/pull/10478)
  689. * [@tkasuz](https://github.com/tkasuz) made their first contribution in [#10555](https://github.com/pydantic/pydantic/pull/10555)
  690. * [@AlekseyLobanov](https://github.com/AlekseyLobanov) made their first contribution in [#10601](https://github.com/pydantic/pydantic/pull/10601)
  691. * [@NiclasvanEyk](https://github.com/NiclasvanEyk) made their first contribution in [#10667](https://github.com/pydantic/pydantic/pull/10667)
  692. * [@mschoettle](https://github.com/mschoettle) made their first contribution in [#10677](https://github.com/pydantic/pydantic/pull/10677)
  693. * [@Daraan](https://github.com/Daraan) made their first contribution in [#10713](https://github.com/pydantic/pydantic/pull/10713)
  694. * [@k4nar](https://github.com/k4nar) made their first contribution in [#10736](https://github.com/pydantic/pydantic/pull/10736)
  695. * [@UriyaHarpeness](https://github.com/UriyaHarpeness) made their first contribution in [#10740](https://github.com/pydantic/pydantic/pull/10740)
  696. * [@frfahim](https://github.com/frfahim) made their first contribution in [#10727](https://github.com/pydantic/pydantic/pull/10727)
  697. ## v2.10.0b2 (2024-11-13)
  698. Pre-release, see [the GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.0b2) for details.
  699. ## v2.10.0b1 (2024-11-06)
  700. Pre-release, see [the GitHub release](https://github.com/pydantic/pydantic/releases/tag/v2.10.0b1) for details.
  701. ... see [here](https://docs.pydantic.dev/changelog/#v0322-2019-08-17) for earlier changes.