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Update dependency fastapi to v0.141.1 - #294

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Update dependency fastapi to v0.141.1#294
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renovate/fastapi-0.x

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@renovate renovate Bot commented Sep 3, 2026 •
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ℹ️ Note

This PR body was truncated due to platform limits.

This PR contains the following updates:

Package Change Age Confidence
fastapi (changelog) ^0.89.0 → ^0.141.0 age confidence
fastapi (changelog) ==0.65.2 → ==0.141.1 age confidence

Release Notes

fastapi/fastapi (fastapi)

v0.141.1

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Fixes
  • 🐛 Fix support for background tasks and headers from dependencies in app.frontend(). PR #​16105 by @​tiangolo.
Docs

v0.141.0

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Features
  • ✨ Add app.frontend(check_dir="auto"), to make local development more convenient with fastapi dev. PR #​16102 by @​tiangolo.

v0.140.13

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Fixes
Docs

v0.140.12

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Fixes

v0.140.11

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v0.140.10

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Fixes
Internal

v0.140.9

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Fixes
  • 🐛 Fix exclude_defaults not propagated to dict keys and values in jsonable_encoder. PR #​16043 by @​MBGrao.
Internal

v0.140.8

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Fixes

v0.140.7

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Refactors
Internal

v0.140.6

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Refactors
  • ⚡️ Avoid flattening dependencies for request parameters, mainly for OpenAPI. PR #​16073 by @​tiangolo.

v0.140.5

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Refactors

v0.140.4

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v0.140.3

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Refactors

v0.140.2

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Refactors
Internal

v0.140.1

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Refactors
  • ♻️ Update the lru_cache limit for dependencies to account for large apps. PR #​16062 by @​tiangolo.

v0.140.0

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Refactors
Docs
Internal

v0.139.2

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Fixes
  • 🐛 Refactor router route building to make it thread-safe, mainly relevant for tests running in parallel threads (uncommon). PR #​16013 by @​tiangolo.

v0.139.1

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Fixes
Docs
  • 📝 Fix topic repository list not being displayed and skip_users not being applied. PR #​15995 by @​YuriiMotov.
Translations
Internal

v0.139.0

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Features
  • ✨ Support dependencies in app.frontend(), e.g. for automatic cookie authentication for the frontend. PR #​15908 by @​tiangolo.
Translations
Internal

v0.138.2

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Refactors
  • ♻️ Make app.frontend() return 404 for methods other than GET or HEAD with no static file matches. PR #​15863 by @​tiangolo.
Internal

v0.138.1

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Refactors
Internal

v0.138.0

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Features
  • ✨ Add support for app.frontend("/", directory="dist") and router.frontend("/", directory="dist"). PR #​15800 by @​tiangolo.
Docs
Translations
Internal

v0.137.2

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Features
  • ✨ Add iter_route_contexts() for advanced use cases that used to use router.routes (e.g. Jupyverse). PR #​15785 by @​tiangolo.
Translations
Internal

v0.137.1

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Fixes

v0.137.0

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Breaking Changes

Unblocks ✨ SO MANY THINGS ✨

Before this, router.include_router(other_router) would take each path operation from other_router and "clone" it, or recreate it from scratch.

This would mean that in the end there was only one top level router, part of the app.

The way it is structured here is that there are a few additional classes to handle intermediate metadata for router and route inclusion. That way the information of "router X includes Y and Y includes Z" is stored somewhere, without affecting (recreating / clonning) the final route.

Non Objectives

Dependencies for 404: previously I intended to support dependencies that would be executed even for 404, but that would conflict with the fact that a router could not find a match, but the next router did find a match. Executing dependencies in the router that did not find a match would not make sense, they could consume the request, body, etc. This original idea was discarded.

Specific Breaking Changes

Now router.routes is no longer a plain list of APIRoute objects, it can contain these intermediate objects that can contain additional routers, forming a tree.

Any logic that depended on iterating on the router.routes directly would be affected, that logic cannot expect to be able to extract data from a plain list of routes, as it's no longer a plain list but a tree.

Additionally, any logic that iterated on router.routes to modify them would now also see these new objects, and would not see all the routes in the app.

router.routes should be considered an internal implementation detail, only passed around to the FastAPI functions that need it.

Features
  • Adding routes (path operations) after a router is included now works, they are reflected as they are not copied.
  • Including subrouter in mainrouter can be done before adding routes (path operations) to subrouter, because now the the entire object is stored instead of copying the routes.
  • As routes are not copied, in some cases that might save some memory.
Alpha Features

This is not documented yet, so it's not officially supported yet and could change in the future.

But, as APIRoute and APIRouter instances are now preserved, they could be customized.

APIRouter has two new methods, .matches() and .handle(), counterpart to the existing ones in APIRoute. With this a router could customize how it matches and handles requests. For example, it could match only requests that include some specific header, for example for handling versions in headers.

Still, for now, consider this very experimental and potentially changing and breaking in the future.

Future Features Enabled
  • Custom APIRoute subclasses (undocumented, but alraedy works as desccribed above)
  • Custom APIRouter subclasses (undocumented, but already works as described above)
  • Dependencies per router
  • Exception handlers per router
  • Middleware per router
  • Other features planned
Docs
Translations
Internal

v0.136.3

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Refactors
  • ♻️ Do not accept underscore headers when using convert_underscores=True (the default). PR #​15589 by @​tiangolo.

v0.136.1

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Upgrades
Internal

v0.136.0

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Upgrades

v0.135.4

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Refactors
Internal

v0.135.3

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Features
Docs
Internal

v0.135.2

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Upgrades
Docs

❗ Important

✂ PR body was truncated to here.

Configuration

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@renovate

renovate Bot commented Sep 3, 2026 •
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⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

  • any of the package files in this branch needs updating, or
  • the branch becomes conflicted, or
  • you click the rebase/retry checkbox if found above, or
  • you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: poetry.lock

The current project's Python requirement (>=3.7,<4.0) is not compatible with some of the required packages Python requirement:
  - fastapi requires Python >=3.10, so it will not be satisfied for Python >=3.7,<3.10
  - fastapi requires Python >=3.10, so it will not be satisfied for Python >=3.7,<3.10

Because no versions of fastapi match >0.141.0,<0.141.1 || >0.141.1,<0.142.0
 and fastapi (0.141.0) requires Python >=3.10, fastapi is forbidden.
So, because fastapi (0.141.1) requires Python >=3.10
 and slowapi depends on fastapi (^0.141.0), version solving failed.

  • Check your dependencies Python requirement: The Python requirement can be specified via the `python` or `markers` properties
    
    For fastapi, a possible solution would be to set the `python` property to ">=3.10,<4.0"
    For fastapi, a possible solution would be to set the `python` property to ">=3.10,<4.0"

    https://python-poetry.org/docs/dependency-specification/#python-restricted-dependencies,
    https://python-poetry.org/docs/dependency-specification/#using-environment-markers

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