Pydantic-settings

What's Changed
* Fix regex flags accidentally passed as count by musicinmybrain in https://github.com/pydantic/pydantic-settings/pull/328
* Deprecate `read_env_file` and move it to `DotEnvSettingsSource` by WarpedPixel in https://github.com/pydantic/pydantic-settings/pull/318
* Fix a bug when loading empty yaml file by hramezani in https://github.com/pydantic/pydantic-settings/pull/330
* feat: Enable access to the current state in settings sources by VictorColomb in https://github.com/pydantic/pydantic-settings/pull/326
* Add support for short options. by kschwab in https://github.com/pydantic/pydantic-settings/pull/339
* Add Azure Key Vault settings source by AndreuCodina in https://github.com/pydantic/pydantic-settings/pull/272
* Add cli_exit_on_error config option by kschwab in https://github.com/pydantic/pydantic-settings/pull/340

New Contributors
* musicinmybrain made their first contribution in https://github.com/pydantic/pydantic-settings/pull/328
* WarpedPixel made their first contribution in https://github.com/pydantic/pydantic-settings/pull/318
* VictorColomb made their first contribution in https://github.com/pydantic/pydantic-settings/pull/326
* AndreuCodina made their first contribution in https://github.com/pydantic/pydantic-settings/pull/272

**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.3.4...v2.4.0

What's Changed
* add in-place reloading in docs by nrolin in https://github.com/pydantic/pydantic-settings/pull/316
* Nested pydantic dataclasses and doc fixes. by kschwab in https://github.com/pydantic/pydantic-settings/pull/317
* Remove leftover docstring causing warning on `pydantic` docs build by sydney-runkle in https://github.com/pydantic/pydantic-settings/pull/321

New Contributors
* nrolin made their first contribution in https://github.com/pydantic/pydantic-settings/pull/316
* sydney-runkle made their first contribution in https://github.com/pydantic/pydantic-settings/pull/321

**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.3.3...v2.3.4

What's Changed
* Fix an intriduced bug in parsing json field with discriminated union by hramezani in https://github.com/pydantic/pydantic-settings/pull/312
* Add CliSettingsSource alias handling for AliasChoices and AliasPath. by kschwab in https://github.com/pydantic/pydantic-settings/pull/313


**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.3.2...v2.3.3

What's Changed
* Initialize CLI source on demand. by kschwab in https://github.com/pydantic/pydantic-settings/pull/305
* Fix command line help from `argparse` formatting problem by scottstanie in https://github.com/pydantic/pydantic-settings/pull/307
* Fix issue with nested model uppercase field name in case insensitive mode by hramezani in https://github.com/pydantic/pydantic-settings/pull/309

New Contributors
* scottstanie made their first contribution in https://github.com/pydantic/pydantic-settings/pull/307

**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.3.1...v2.3.2

What's Changed
* Fix a regression in parsing env value for nested dict by hramezani in https://github.com/pydantic/pydantic-settings/pull/301


**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.3.0...v2.3.1

What's Changed
* Add environment parsing support for enums. by kschwab in https://github.com/pydantic/pydantic-settings/pull/252
* Improve `explode_env_vars` for better dict handling by hramezani in https://github.com/pydantic/pydantic-settings/pull/261
* add `PyprojectTomlConfigSettingsSource` by ITProKyle in https://github.com/pydantic/pydantic-settings/pull/255
* Fix broken link in AliasChoices class by keenranger in https://github.com/pydantic/pydantic-settings/pull/271
* Update Pydantic by hramezani in https://github.com/pydantic/pydantic-settings/pull/273
* fix: superfluous deep env conflicts with non-dict model leaf by diefans in https://github.com/pydantic/pydantic-settings/pull/276
* fix: a second level of environment nesting expected a dict by diefans in https://github.com/pydantic/pydantic-settings/pull/281
* Fix an issue when inner types of a discriminated union with a callable discriminator were not correctly identified as complex. by jenskeiner in https://github.com/pydantic/pydantic-settings/pull/285
* Fix a bug when we have case insentive field in nested model by hramezani in https://github.com/pydantic/pydantic-settings/pull/294
* Add CLI Settings Source by kschwab in https://github.com/pydantic/pydantic-settings/pull/214

New Contributors
* ITProKyle made their first contribution in https://github.com/pydantic/pydantic-settings/pull/255
* keenranger made their first contribution in https://github.com/pydantic/pydantic-settings/pull/271
* diefans made their first contribution in https://github.com/pydantic/pydantic-settings/pull/276
* jenskeiner made their first contribution in https://github.com/pydantic/pydantic-settings/pull/285

**Full Changelog**: https://github.com/pydantic/pydantic-settings/compare/v2.2.1...v2.3.0