The FastAPI docs are now fully translated to: German Spanish French Japanese Korean Portuguese Russian Turkish Ukrainian Chinese Traditional Chinese Done by AI guided by humans and native speakers 🤖 Shoutout to YuriiMotov for handling a lot of this 🙌 fastapi.tiangolo.com

FastAPI 0.129.0 drops support for Python 3.9, which reached its End Of Life months ago 🪓 Make sure you have a recent Python version, ideally 3.14 😎 fastapi.tiangolo.com

Here's FastAPI 0.128.7 with a couple of bug fixes and small features 🍰 ...the plan is to release 0.129.0 today, dropping support for Python 3.9 🪓 github.com/fastapi/fast...

With some finagling, I managed to build @fastapi.tiangolo.com against Python 3.15 to run the new FastAPI pyperformance benchmark, with and without the JIT. 3.13: 142ms → 141ms w/ JIT (~0.7% faster) 3.14: 147ms → 149ms w/ JIT (~1.4% slower) 3.15a5+ (main): 145ms → 134ms w/ JIT (8% faster!!!)

Several FastAPI releases during the weekend and today with internal refactors and a bug fix, the latest is 0.128.6 🤓

How much do you like Friday releases? 🍫 FastAPI 0.128.3, compatible with the latest (and future) Starlette 🚀 github.com/fastapi/fast...

Here's FastAPI 0.128.2, with more bug fixes and features 🎁 github.com/fastapi/fast...

FastAPI 0.128.1 comes with with several small bug fixes and features 🍰 fastapi.tiangolo.com

The full-stack-fastapi-template now has 40k+ GitHub stars, 0 open PRs, 0 open issues 🤯 To celebrate: version 0.10.0 🥂 Highlight: alejsdev set it up as a uv workspace, and a bun monorepo, now all works from the top level 🚀 github.com/fastapi/full...

LLMs and other tools are great, use them wisely 🧙 fastapi.tiangolo.com/contributing...

The FastAPI docs are now FULLY translated to multiple languages, always up to date 🌐 LLMs, carefully guided by the FastAPI team plus native speakers 🤖🙋 Spanish - @tiangolo.com German - Nils Lindemann Russian - Yurii Motov Portuguese - Rafael Marques fastapi.tiangolo.com/contributing...

FastAPI 0.128.0 drops support for pydantic.v1 ⚰️ Now only @pydantic.dev v2 is supported ⬆️ This will unlock many things ✨ fastapi.tiangolo.com

Here's FastAPI 0.127.1 🔖 It adds a custom deprecation warning to make sure you see any deprecated code and update it 🔊 fastapi.tiangolo.com

FastAPI 0.127.0 raises a deprecation warning if you use pydantic.v1 🔊 Support for pydantic.v1 will be fully dropped next ☕️ You should (and probably are) using @pydantic.dev v2 ✨

FastAPI 0.126.0 drops support for Pydantic v1 ⚰️ The minimum version is now @pydantic.dev >= 2.7.0 ⬆️ Importing from pydantic.v1 is still temporarily supported, but will no longer be supported in a future release in the next few days. 🔥

FastAPI 0.125.0 drops support for Python 3.8 ⚰️ github.com/fastapi/fast...

Bug fix releases: FastAPI 0.124.3 and 0.124.4 🐛 The highlight: YuriiMotov fixed support for @pydantic.dev aliases (validation and serialization) in multiple edge cases. 🚀 If there are no new reports, FastAPI will drop support for Python 3.8 next week. ⚰️ github.com/fastapi/fast...

A couple of bug-fix releases, FastAPI 0.124.1 and 0.124.2 🐛 github.com/fastapi/fast...

The full-stack-fastapi-template now uses @shadcn.com / ui (with @tailwindcss.com ) for the frontend 🚀🎉 There's still dark mode too, and all the nice things 🦇 Thanks alejsdev! 🙌 github.com/fastapi/full...

FastAPI 0.124.0 comes with better server error tracebacks. ✨ Before, if the app sent invalid data back, the server error logs would not show where the problem was. 😔 Now it shows the (clickable) file, line, function, and path operation. 📢 Thanks @savannah.dev! 🙌

Here's FastAPI 0.123.10 ☕️ A couple of bugs handled, confirmed, and fixed by YuriiMotov 🙌🐛 github.com/fastapi/fast...

Another FastAPI bug-fix release, 0.123.9 🐛 This fixes more edge cases around OpenAPI and OAuth2 scopes 🔒️ It required a considerable internal refactor, so now the code is more robust and less error-prone. 😎 github.com/fastapi/fast...

It's liveee! 🤩 The folks from @cultrepo.bsky.social made a mini documentary about @fastapi.tiangolo.com ! 🚀🎉 📺️ www.youtube.com/watch?v=mpR8...

Mooore releases! FastAPI 0.123.8 🥞 🐛 Fix a bug in the OpenAPI schema generated for security schemes using OAuth 2 scopes, when using different scopes at the router or path operation level github.com/fastapi/fast...

FastAPI will drop support for Python 3.8 in the next days 🔥

Now FastAPI 0.123.7 ☕️ 🐛 Fix corner cases in stringified annotations in Python 3.10+ (a.k.a. from __future__ import annotations)

Here's FastAPI 0.123.6 🍰 🐛 Fix support for functools wraps, partial, in async and regular functions, for path operations and dependencies, including with yield, classes, callables, etc. github.com/fastapi/fast...

Here's another FastAPI release, 0.123.5 🎁 Several related fixes and improvements, support for functools wraps, partial 🚀 github.com/fastapi/fast...

How many releases do you like to have in a day? Here's more: 0.123.3, 0.123.4 🥞 Granular releases, so you can get the latest, but if something doesn't work for you for some reason, you can still get some of the fixes in the previous release. ☕️

More bug-fix releases for you! 🐛 FastAPI 0.123.1 and 0.123.2 🍫 fastapi.tiangolo.com/release-notes/

FastAPI 0.123.0 🚀 This (and 0.122.1) handles a bug in caching dependencies when using OAuth 2 security scopes. 🐛 github.com/fastapi/fast...

Long-awaited, FastAPI 0.122.0 🎁 🐛 Security classes now return 401 on errors instead of 403 They include sensible WWW-Authenticate headers to stay spec-compliant 🤓 If your code depends on 403 errors, you can override this: fastapi.tiangolo.com/how-to/authe... Thanks YuriiMotov! 🙌

Small refactor release, FastAPI 0.121.3 ☕️ github.com/fastapi/fast...

Quick bug fix release, FastAPI 0.121.2 🍰 🐛 Fix handling of JSON Schema attributes named "$ref" github.com/fastapi/fast...

A basic FastAPI app in one command 🚀 Install uv: docs.astral.sh/uv/getting-s... Run: uvx fastapi-new awesomeapp ✨ Done! ✨ Thanks @savannah.dev ! 🙌 github.com/fastapi/fast...

The FastAPI CLI now supports declaring the entrypoint (your app location) in pyproject.toml ✨ Configure there once, and then you can just run: $ fastapi dev ...without having to pass a file path 😎 Thanks @patrick.wtf! 🙌

Here's a smol bug-fix release for the weekend, FastAPI 0.121.1 🐛 luzzodev just fixed Depends(func, scope="function") when used in the router, at the top level. 😎 github.com/fastapi/fast...

Here's FastAPI 0.121.0 🍰 In case you needed to exit early from dependencies with yield, you can now opt in with: Depends(some_func, scope="function") fastapi.tiangolo.com/tutorial/dep...

You wanted Halloween scare jumps? 🎃 Here are THREE releases in a row, on a Friday. 🧛 FastAPI 0.120.2, 0.120.3, 0.120.4 🦇 The first 2 from yesterday, refactors and cleanup, preparing for a big feature coming. 🍬 Last, Yurii quickly fixed a bug from the previous one. 🧌 fastapi.tiangolo.com

Here's FastAPI 0.120.2 ☕️ Fixing a bug when generating schemas for multiple nested models 🐛 github.com/fastapi/fast...

fastapi-cli 0.0.14 comes with support for Python 3.14 🐍 Just install "fastapi[standard]" 🤓 fastapi.tiangolo.com

Quick fix release, 0.119.1 🍫 This fixes compatibility (warnings) with @pydantic.dev 2.12.1 on Python 3.14 🐍 Nothing changed for the final users, but still a lot of work underneath to get it done. 😅 Thanks @oxykodit.bsky.social! 🙌 github.com/fastapi/fast...

Here's FastAPI 0.119.0 🚀 With support for both @pydantic.dev v2 and v1 on the same app, at the same time 🤯 This is just so you can migrate to Pydantic v2 if you haven't done it yet, here's your (last) chance! 🤓 Pydantic v1 is now deprecated ⛔️ Read more fastapi.tiangolo.com/how-to/migra...

Who's hungry? There's pi 🥧 FastAPI 0.118.3 has official support for Python 3.14 🎉 Big thanks to @oxykodit.bsky.social for a long debugging and preparation process! 🙌 And shoutout to @1st1.dev and Fantix from @geldata.com for the new httptools with support for 3.14 🙇

Here's another quick FastAPI bug fix release, 0.118.2 🚀 This fixes a use case with Pydantic models using discriminated unions in the body. 🐛 (If you don't understand or use that, no need to worry about it either 😎) Thanks François Voron! 🙌 And thanks @patrick.wtf and Yurii! 🍰

Here's FastAPI 0.118.1, with compatibility for the latest @pydantic.dev. 🚀 This one had the combined effort of the community, the @pydantic.dev team, and the @fastapi.tiangolo.com team, all together. 🙌 github.com/fastapi/fast...

FastAPI 0.118.0 was just released 🎁 🐛 This fixes a bug when using a StreamingResponse and dependencies with yield or UploadFile. Details: Now the exit code of dependencies with yield runs after the response is sent back. If you want to read more: fastapi.tiangolo.com/advanced/adv...

What's a better weekend treat than a release packed with features and bug fixes? 🍰 FastAPI 0.117.0 has too many things to list. ✨ Check the release notes: fastapi.tiangolo.com/release-notes/ Shoutout to YuriiMotov for the work reviewing and tweaking PRs! 🙌

Just released, fastapi-cli version 0.0.12 🤓 With support for the PORT environment variable, used by many cloud providers. 🚀 Just use: ✨ fastapi run ✨ Thanks Marco Burro! 🙌

Here's FastAPI 0.116.2 with support for the latest Starlette 🚀 github.com/fastapi/fast...