Bump pydantic from 2.12.3 to 2.12.4

[dependabot]

Bumps pydantic from 2.12.3 to 2.12.4.

Release notes

Sourced from pydantic's releases.

v2.12.4 2025-11-05

v2.12.4 (2025-11-05)

This is the fourth 2.12 patch release, fixing more regressions, and reverting a change in the build() method of the AnyUrl and Dsn types.

This patch release also fixes an issue with the serialization of IP address types, when serialize_as_any is used. The next patch release will try to address the remaining issues with serialize as any behavior by introducing a new polymorphic serialization feature, that should be used in most cases in place of serialize as any.

• Fix issue with forward references in parent TypedDict classes by @​Viicos in #12427.

  This issue is only relevant on Python 3.14 and greater.

• Exclude fields with exclude_if from JSON Schema required fields by @​Viicos in #12430

• Revert URL percent-encoding of credentials in the build() method of the AnyUrl and Dsn types by @​davidhewitt in pydantic-core#1833.

  This was initially considered as a bugfix, but caused regressions and as such was fully reverted. The next release will include an opt-in option to percent-encode components of the URL.

• Add type inference for IP address types by @​davidhewitt in pydantic-core#1868.

  The 2.12 changes to the serialize_as_any behavior made it so that IP address types could not properly serialize to JSON.

• Avoid getting default values from defaultdict by @​davidhewitt in pydantic-core#1853.

  This fixes a subtle regression in the validation behavior of the collections.defaultdict type.

• Fix issue with field serializers on nested typed dictionaries by @​davidhewitt in pydantic-core#1879.

• Add more pydantic-core builds for the three-threaded version of Python 3.14 by @​davidhewitt in pydantic-core#1864.

Full Changelog: pydantic/pydantic@v2.12.3...v2.12.4

Changelog

Sourced from pydantic's changelog.

v2.12.4 (2025-11-05)

GitHub release

This is the fourth 2.12 patch release, fixing more regressions, and reverting a change in the build() method of the AnyUrl and Dsn types.

This patch release also fixes an issue with the serialization of IP address types, when serialize_as_any is used. The next patch release will try to address the remaining issues with serialize as any behavior by introducing a new polymorphic serialization feature, that should be used in most cases in place of serialize as any.

• Fix issue with forward references in parent TypedDict classes by @​Viicos in #12427.

  This issue is only relevant on Python 3.14 and greater.

• Exclude fields with exclude_if from JSON Schema required fields by @​Viicos in #12430

• Revert URL percent-encoding of credentials in the build() method of the AnyUrl and Dsn types by @​davidhewitt in pydantic-core#1833.

  This was initially considered as a bugfix, but caused regressions and as such was fully reverted. The next release will include an opt-in option to percent-encode components of the URL.

• Add type inference for IP address types by @​davidhewitt in pydantic-core#1868.

  The 2.12 changes to the serialize_as_any behavior made it so that IP address types could not properly serialize to JSON.

• Avoid getting default values from defaultdict by @​davidhewitt in pydantic-core#1853.

  This fixes a subtle regression in the validation behavior of the collections.defaultdict type.

• Fix issue with field serializers on nested typed dictionaries by @​davidhewitt in pydantic-core#1879.

• Add more pydantic-core builds for the three-threaded version of Python 3.14 by @​davidhewitt in pydantic-core#1864.

Commits

• 5c842df Prepare release v2.12.4
• c678a71 Bump pydantic-core to v2.41.5
• a7cd292 Bump cloudpickle to v3.1.2
• 21f6278 Bump actions/setup-node from 5 to 6
• 8d6be8f Bump astral-sh/setup-uv from 6 to 7
• 17865ea Bump actions/upload-artifact from 4 to 5
• 90ad0af Bump actions/download-artifact from 5 to 6
• 18e6672 Drop testing under PyPy 3.9
• 650215b Document workaround for MongoDsn default port
• e326790 Fix example of for bytes_invalid_encoding validation error
• Additional commits viewable in compare view

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[codspeed-hq]

CodSpeed Performance Report

Merging #11747 will not alter performance

_{Comparing dependabot/pip/3.14/pydantic-2.12.4 (db653b2) with 3.14 (881530d)¹}

Summary

✅ 59 untouched

Footnotes

1. No successful run was found on 3.14 (88a57ae) during the generation of this report, so 881530d was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩