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@renovate renovate bot commented Jul 7, 2025

Note: This PR body was truncated due to platform limits.

This PR contains the following updates:

Package Change Age Confidence
fastapi (changelog) ^0.115.5^0.128.0 age confidence

Release Notes

fastapi/fastapi (fastapi)

v0.128.0

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Breaking Changes
Internal

v0.127.1

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Refactors
Docs
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Internal

v0.127.0

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Breaking Changes
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

v0.126.0

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Upgrades
  • ➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's pydantic.v1. PR #​14575 by @​tiangolo.
    • The minimum version of Pydantic installed is now pydantic >=2.7.0.
    • The standard dependencies now include pydantic-settings >=2.0.0 and pydantic-extra-types >=2.0.0.
Docs
Translations
  • 🔧 Add LLM prompt file for Ukrainian, generated from the existing translations. PR #​14548 by @​tiangolo.
Internal

v0.125.0

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Breaking Changes
  • 🔧 Drop support for Python 3.8. PR #​14563 by @​tiangolo.
    • This would actually not be a breaking change as no code would really break. Any Python 3.8 installer would just refuse to install the latest version of FastAPI and would only install 0.124.4. Only marking it as a "breaking change" to make it visible.
Refactors
Docs
Translations
Internal

v0.124.4

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Fixes

v0.124.3

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Fixes
  • 🐛 Fix support for tagged union with discriminator inside of Annotated with Body(). PR #​14512 by @​tiangolo.
Refactors
Docs
Translations
Internal

v0.124.2

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Fixes
  • 🐛 Fix support for if TYPE_CHECKING, non-evaluated stringified annotations. PR #​14485 by @​tiangolo.

v0.124.1

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Fixes
  • 🐛 Fix handling arbitrary types when using arbitrary_types_allowed=True. PR #​14482 by @​tiangolo.
Docs
Internal

v0.124.0

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Features
Internal

v0.123.10

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Fixes

v0.123.9

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v0.123.8

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Fixes
  • 🐛 Fix OpenAPI security scheme OAuth2 scopes declaration, deduplicate security schemes with different scopes. PR #​14455 by @​tiangolo.

v0.123.7

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Fixes

v0.123.6

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Fixes
  • 🐛 Fix support for functools wraps and partial combined, for async and regular functions and classes in path operations and dependencies. PR #​14448 by @​tiangolo.

v0.123.5

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Features
Fixes
  • 🐛 Fix optional sequence handling with new union syntax from Python 3.10. PR #​14430 by @​Viicos.
Refactors
  • 🔥 Remove dangling extra condiitonal no longer needed. PR #​14435 by @​tiangolo.
  • ♻️ Refactor internals, update is_coroutine check to reuse internal supported variants (unwrap, check class). PR #​14434 by @​tiangolo.
Translations

v0.123.4

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Fixes
  • 🐛 Fix OpenAPI schema support for computed fields when using separate_input_output_schemas=False. PR #​13207 by @​vgrafe.
Docs

v0.123.3

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Fixes

v0.123.2

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Fixes
Docs

v0.123.1

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Fixes
Internal

v0.123.0

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Fixes
  • 🐛 Cache dependencies that don't use scopes and don't have sub-dependencies with scopes. PR #​14419 by @​tiangolo.

v0.122.1

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Fixes
Docs
Internal

v0.122.0

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Fixes
Internal

v0.121.3

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0.121.3

Refactors
  • ♻️ Make the result of Depends() and Security() hashable, as a workaround for other tools interacting with these internal parts. PR #​14372 by @​tiangolo.
Upgrades
Docs

v0.121.2

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Fixes
Docs
Translations

v0.121.1

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Fixes
  • 🐛 Fix Depends(func, scope='function') for top level (parameterless) dependencies. PR #​14301 by @​luzzodev.
Docs
  • 📝 Upate docs for advanced dependencies with yield, noting the changes in 0.121.0, adding scope. PR #​14287 by @​tiangolo.
Internal

v0.121.0

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Features
Internal

v0.120.4

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Fixes

v0.120.3

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Refactors
  • ♻️ Reduce internal cyclic recursion in dependencies, from 2 functions calling each other to 1 calling itself. PR #​14256 by @​tiangolo.
  • ♻️ Refactor internals of dependencies, simplify code and remove get_param_sub_dependant. PR #​14255 by @​tiangolo.
  • ♻️ Refactor internals of dependencies, simplify using dataclasses. PR #​14254 by @​tiangolo.
Docs

v0.120.2

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Fixes
Internal

v0.120.1

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Upgrades
Internal
  • 🔧 Add license and license-files to pyproject.toml, remove License from classifiers. PR #​14230 by @​YuriiMotov.

v0.120.0

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There are no major nor breaking changes in this release. ☕️

The internal reference documentation now uses annotated_doc.Doc instead of typing_extensions.Doc, this adds a new (very small) dependency on annotated-doc, a package made just to provide that Doc documentation utility class.

I would expect typing_extensions.Doc to be deprecated and then removed at some point from typing_extensions, for that reason there's the new annotated-doc micro-package. If you are curious about this, you can read more in the repo for annotated-doc.

This new version 0.120.0 only contains that transition to the new home package for that utility class Doc.

Translations
Internal

v0.119.1

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Fixes
  • 🐛 Fix internal Pydantic v1 compatibility (warnings) for Python 3.14 and Pydantic 2.12.1. PR #​14186 by @​svlandeg.
Docs
  • 📝 Replace starlette.io by starlette.dev and uvicorn.org by uvicorn.dev. PR #​14176 by @​Kludex.
Internal

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

v0.118.2

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Fixes
Internal

v0.118.1

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Upgrades
Docs
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Internal

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
Translations
Internal

v0.117.1

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Fixes

v0.117.0

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Features
Fixes
  • ⚡️ Fix default_factory for response model field with Pydantic V1. PR #​9704 by @​vvanglro.
  • 🐛 Fix inconsistent processing of model docstring formfeed char with Pydantic V1. PR #​6039 by @​MaxwellPayne.
  • 🐛 Fix jsonable_encoder alters json_encoders of Pydantic v1 objects. PR #​4972 by @​aboubacs.
  • 🐛 Reenable allow_arbitrary_types when only 1 argument is used on the API endpoint. PR #​13694 by @​rmawatson.
  • 🐛 Fix inspect.getcoroutinefunction() can break testing with unittest.mock.patch(). PR #​14022 by @​secrett2633.
Refactors
Docs
Translations
Internal

v0.116.2

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Upgrades
Docs

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@renovate renovate bot force-pushed the renovate/fastapi-0.x branch from ea1caba to 16942d4 Compare August 10, 2025 14:08
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| datasource | package | from     | to      |
| ---------- | ------- | -------- | ------- |
| pypi       | fastapi | 0.115.12 | 0.128.0 |
@renovate renovate bot force-pushed the renovate/fastapi-0.x branch from 4de246f to 663081b Compare December 27, 2025 16:39
@renovate renovate bot changed the title chore(deps): update dependency fastapi to ^0.127.0 chore(deps): update dependency fastapi to ^0.128.0 Dec 27, 2025
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