I'll tell you a bit more about these **concepts** here, and that would hopefully give you the **intuition** you would need to decide how to deploy your API in very different environments, possibly even in **future** ones that don't exist yet.

By considering these concepts, you will be able to **evaluate and design** the best way to deploy **your own APIs**.

In the next chapters, I'll give you more **concrete recipes** to deploy FastAPI applications.

* Fix serialization when using `by_alias` or `exclude_unset` and returning data with Pydantic models. PR [#1074](https://github.com/tiangolo/fastapi/pull/1074) by [@juhovh-aiven](https://github.com/juhovh-aiven).
* Add Gitter chat to docs. PR [#1061](https://github.com/tiangolo/fastapi/pull/1061) by [@aakashnand](https://github.com/aakashnand).

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# Features

## FastAPI features

**FastAPI** gives you the following:

### Based on open standards