Here's FastAPI 0.119.0 🚀

With support for both @pydantic v2 and v1 on the same app, at the same time 🤯

This is just so you can migrate to Pydantic v2 if you haven't done it yet, here's your (last) chance! 🤓

Pydantic v1 is now deprecated ⛔️

Read more fastapi.tiangolo.com/how-to/migrate…

Oct 11, 2025 · 5:32 PM UTC

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@FastAPI @pydantic I love your framework, but not having stable LTS releases kills it for my work 😢
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