Update dependency fastapi to v0.119.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
fastapi (changelog)	0.117.1 -> 0.119.0

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Release Notes

fastapi/fastapi (fastapi)

v0.119.0

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FastAPI now (temporarily) supports both Pydantic v2 models and pydantic.v1 models at the same time in the same app, to make it easier for any FastAPI apps still using Pydantic v1 to gradually but quickly migrate to Pydantic v2.

from fastapi import FastAPI
from pydantic import BaseModel as BaseModelV2
from pydantic.v1 import BaseModel

class Item(BaseModel):
    name: str
    description: str | None = None

class ItemV2(BaseModelV2):
    title: str
    summary: str | None = None

app = FastAPI()

@​app.post("/items/", response_model=ItemV2)
def create_item(item: Item):
    return {"title": item.name, "summary": item.description}

Adding this feature was a big effort with the main objective of making it easier for the few applications still stuck in Pydantic v1 to migrate to Pydantic v2.

And with this, support for Pydantic v1 is now deprecated and will be removed from FastAPI in a future version soon.

Note: have in mind that the Pydantic team already stopped supporting Pydantic v1 for recent versions of Python, starting with Python 3.14.

You can read in the docs more about how to Migrate from Pydantic v1 to Pydantic v2.

Features

• ✨ Add support for from pydantic.v1 import BaseModel, mixed Pydantic v1 and v2 models in the same app. PR #​14168 by @​tiangolo.

v0.118.3

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Upgrades

• ⬆️ Add support for Python 3.14. PR #​14165 by @​svlandeg.

v0.118.2

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Fixes

• 🐛 Fix tagged discriminated union not recognized as body field. PR #​12942 by @​frankie567.

Internal

• ⬆ Bump astral-sh/setup-uv from 6 to 7. PR #​14167 by @​dependabot[bot].

v0.118.1

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Upgrades

• 👽️ Ensure compatibility with Pydantic 2.12.0. PR #​14036 by @​cjwatson.

Docs

• 📝 Add External Link: Getting started with logging in FastAPI. PR #​14152 by @​itssimon.

Translations

• 🔨 Add Russian translations LLM prompt. PR #​13936 by @​tiangolo.
• 🌐 Sync German docs. PR #​14149 by @​nilslindemann.
• 🌐 Add Russian translations for missing pages (LLM-generated). PR #​14135 by @​YuriiMotov.
• 🌐 Update Russian translations for existing pages (LLM-generated). PR #​14123 by @​YuriiMotov.
• 🌐 Remove configuration files for inactive translations. PR #​14130 by @​tiangolo.

Internal

• 🔨 Move local coverage logic to its own script. PR #​14166 by @​tiangolo.
• ⬆ [pre-commit.ci] pre-commit autoupdate. PR #​14161 by @​pre-commit-ci[bot].
• ⬆ Bump griffe-typingdoc from 0.2.8 to 0.2.9. PR #​14144 by @​dependabot[bot].
• ⬆ Bump mkdocs-macros-plugin from 1.3.9 to 1.4.0. PR #​14145 by @​dependabot[bot].
• ⬆ Bump markdown-include-variants from 0.0.4 to 0.0.5. PR #​14146 by @​dependabot[bot].
• ⬆ [pre-commit.ci] pre-commit autoupdate. PR #​14126 by @​pre-commit-ci[bot].
• 👥 Update FastAPI GitHub topic repositories. PR #​14150 by @​tiangolo.
• 👥 Update FastAPI People - Sponsors. PR #​14139 by @​tiangolo.
• 👥 Update FastAPI People - Contributors and Translators. PR #​14138 by @​tiangolo.
• ⬆ Bump ruff from 0.12.7 to 0.13.2. PR #​14147 by @​dependabot[bot].
• ⬆ Bump sqlmodel from 0.0.24 to 0.0.25. PR #​14143 by @​dependabot[bot].
• ⬆ Bump tiangolo/issue-manager from 0.5.1 to 0.6.0. PR #​14148 by @​dependabot[bot].
• 👷 Update docs previews comment, single comment, add failure status. PR #​14129 by @​tiangolo.
• 🔨 Modify mkdocs_hooks.py to add title to page's metadata (remove permalinks in social cards). PR #​14125 by @​YuriiMotov.

v0.118.0

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0.118.0

Fixes

• 🐛 Fix support for StreamingResponses with dependencies with yield or UploadFiles, close after the response is done. PR #​14099 by @​tiangolo.

Before FastAPI 0.118.0, if you used a dependency with yield, it would run the exit code after the path operation function returned but right before sending the response.

This change also meant that if you returned a StreamingResponse, the exit code of the dependency with yield would have been already run.

For example, if you had a database session in a dependency with yield, the StreamingResponse would not be able to use that session while streaming data because the session would have already been closed in the exit code after yield.

This behavior was reverted in 0.118.0, to make the exit code after yield be executed after the response is sent.

You can read more about it in the docs for Advanced Dependencies - Dependencies with yield, HTTPException, except and Background Tasks. Including what you could do if you wanted to close a database session earlier, before returning the response to the client.

Docs

• 📝 Update tutorial/security/oauth2-jwt/ to use pwdlib with Argon2 instead of passlib. PR #​13917 by @​Neizvestnyj.
• ✏️ Fix typos in OAuth2 password request forms. PR #​14112 by @​alv2017.
• 📝 Update contributing guidelines for installing requirements. PR #​14095 by @​alejsdev.

Translations

• 🌐 Sync German docs. PR #​14098 by @​nilslindemann.

Internal

• ⬆ [pre-commit.ci] pre-commit autoupdate. PR #​14103 by @​pre-commit-ci[bot].
• ♻️ Refactor sponsor image handling. PR #​14102 by @​alejsdev.
• 🐛 Fix sponsor display issue by hiding element on image error. PR #​14097 by @​alejsdev.
• 🐛 Hide sponsor badge when sponsor image is not displayed. PR #​14096 by @​alejsdev.

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