●Change8

Migrating to FastAPI 0.131.0

Version 0.131.0 introduces 1 breaking change. This guide details how to update your code.

Released: 2/22/2026

1
Breaking Changes
2
Migration Steps
2
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

ORJSONResponseUJSONResponse

Breaking Changes

●Issue #1

The classes `ORJSONResponse` and `UJSONResponse` have been deprecated. Users should migrate to the standard `JSONResponse` or use alternative serialization methods if specific performance requirements necessitate them.

Migration Steps

  1. 1
    Replace usage of `ORJSONResponse` with `JSONResponse` or an equivalent alternative.
  2. 2
    Replace usage of `UJSONResponse` with `JSONResponse` or an equivalent alternative.

Release Summary

This release primarily focuses on deprecating the `ORJSONResponse` and `UJSONResponse` classes, signaling a shift away from these specific response types.

Need More Details?

View the full release notes and all changes for FastAPI 0.131.0.

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