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📝 Update release notes

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Sebastián Ramírez 2019-10-09 13:13:04 -05:00
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## Latest changes
* Add dependencies with `yield`, a.k.a. exit steps, context managers, cleanup, teardown, ...
* This allows adding extra code after a dependency is done. It can be used, for example, to close database connections.
* Dependencies with `yield` can be normal or `async`, **FastAPI** will run normal dependencies in a threadpool.
* They can be combined with normal dependencies.
* It's possible to have arbitrary trees/levels of dependencies with `yield` and exit steps are handled in the correct order automatically.
* It works by default in Python 3.7 or above. For Python 3.6, it requires the extra backport dependencies:
* `async-exit-stack`
* `async-generator`
* New docs at [Dependencies with `yield`](https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-with-yield/).
* Updated database docs [SQL (Relational) Databases: Main **FastAPI** app](https://fastapi.tiangolo.com/tutorial/sql-databases/#main-fastapi-app).
* PR [#595](https://github.com/tiangolo/fastapi/pull/595).
* Fix `sitemap.xml` in website. PR [#598](https://github.com/tiangolo/fastapi/pull/598) by [@samuelcolvin](https://github.com/samuelcolvin).
## 0.41.0