### We Make Mistakes

We, as humans, make **mistakes**, all the time. Software almost *always* has **bugs** hidden in different places. 🐛

And we as developers keep improving the code as we find those bugs and as we implement new features (possibly adding new bugs too 😅).

### Small Errors Automatically Handled

* 🌐 Add Portuguese translations for `learn/index.md` `resources/index.md` `help/index.md` `about/index.md`. PR [#10807](https://github.com/tiangolo/fastapi/pull/10807) by [@nazarepiedady](https://github.com/nazarepiedady).
* 🌐 Update Russian translations for deployments docs. PR [#11271](https://github.com/tiangolo/fastapi/pull/11271) by [@Lufa1u](https://github.com/Lufa1u).

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* Click on the button "Try it out", it allows you to fill the parameters and directly interact with the API:

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)

Sebastián Ramírez <******@****.***> 1714689451 -0700

This practice is common enough that it has a name, these environment variables are commonly placed in a file `.env`, and the file is called a "dotenv".

!!! tip
    A file starting with a dot (`.`) is a hidden file in Unix-like systems, like Linux and macOS.

    But a dotenv file doesn't really have to have that exact filename.