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v1.57.0

pydantic/pydantic-aiv1.57.0Feb 10, 2026by DouweM

AI Summary

Fixes a base64 decoding issue for A2A FilePart used in image and file uploads.

Key Highlights

  • Fixed A2A FilePart base64 decoding for image/file uploads

Full Release Notes

<!-- Release notes generated using configuration in .github/release.yml at main -->

## What's Changed
### 🐛 Bug Fixes
* Fix A2A FilePart base64 decoding for image/file uploads by @Red5d in https://github.com/pydantic/pydantic-ai/pull/4181

## New Contributors
* @Mr-Neutr0n made their first contribution in https://github.com/pydantic/pydantic-ai/pull/4208
* @Tamles made their first contribution in https://github.com/pydantic/pydantic-ai/pull/4257
* @Red5d made their first contribution in https://github.com/pydantic/pydantic-ai/pull/4181

**Full Changelog**: https://github.com/pydantic/pydantic-ai/compare/v1.56.0...v1.57.0