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fix(deps): update dependency fastapi to ^0.138.0#133

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renovate/fastapi-0.x
Jun 21, 2026
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fix(deps): update dependency fastapi to ^0.138.0#133
sdglitched merged 1 commit into
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renovate/fastapi-0.x

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@renovate renovate Bot commented Apr 16, 2026

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This PR contains the following updates:

Package Change Age Confidence
fastapi (changelog) ^0.135.0^0.138.0 age confidence

Release Notes

fastapi/fastapi (fastapi)

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

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This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate Bot force-pushed the renovate/fastapi-0.x branch 2 times, most recently from c33eaa5 to 281eb0e Compare April 23, 2026 20:40
@renovate renovate Bot force-pushed the renovate/fastapi-0.x branch from 281eb0e to 181a4ca Compare May 12, 2026 10:10
@renovate renovate Bot force-pushed the renovate/fastapi-0.x branch from 181a4ca to 189c210 Compare May 23, 2026 21:11
@renovate renovate Bot changed the title fix(deps): update dependency fastapi to ^0.136.0 fix(deps): update dependency fastapi to ^0.137.0 Jun 14, 2026
@renovate renovate Bot force-pushed the renovate/fastapi-0.x branch 4 times, most recently from 1abceef to be51de3 Compare June 18, 2026 20:13
@renovate renovate Bot changed the title fix(deps): update dependency fastapi to ^0.137.0 fix(deps): update dependency fastapi to ^0.138.0 Jun 20, 2026
@renovate renovate Bot force-pushed the renovate/fastapi-0.x branch from be51de3 to da0e4ba Compare June 20, 2026 02:06
@sdglitched sdglitched self-assigned this Jun 21, 2026
@sdglitched sdglitched merged commit bc38728 into main Jun 21, 2026
4 checks passed
@sdglitched sdglitched deleted the renovate/fastapi-0.x branch June 21, 2026 06:16
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