fastapi 0.127.0

on Python PyPI

Breaking Changes

• 🔊 Add deprecation warnings when using pydantic.v1. PR #14583 by @tiangolo.

Translations

• 🔧 Add LLM prompt file for Korean, generated from the existing translations. PR #14546 by @tiangolo.
• 🔧 Add LLM prompt file for Japanese, generated from the existing translations. PR #14545 by @tiangolo.

Internal

• ⬆️ Upgrade OpenAI model for translations to gpt-5.2. PR #14579 by @tiangolo.