# Security { #security }

There are many ways to handle security, authentication and authorization.

And it normally is a complex and "difficult" topic.

In many frameworks and systems just handling security and authentication takes a big amount of effort and code (in many cases it can be 50% or more of all the code written).

* `fixedquery`: has the exact value `fixedquery`.
* `$`: ends there, doesn't have any more characters after `fixedquery`.

If you feel lost with all these **"regular expression"** ideas, don't worry. They are a hard topic for many people. You can still do a lot of stuff without needing regular expressions yet.

Now you know that whenever you need them you can use them in **FastAPI**.

# Additional Responses in OpenAPI { #additional-responses-in-openapi }

/// warning

This is a rather advanced topic.

If you are starting with **FastAPI**, you might not need this.

///

You can declare additional responses, with additional status codes, media types, descriptions, etc.

Those additional responses will be included in the OpenAPI schema, so they will also appear in the API docs.

* 👥 Update FastAPI GitHub topic repositories. PR [#13146](https://github.com/fastapi/fastapi/pull/13146) by [@tiangolo](https://github.com/tiangolo).
* 👷‍♀️ Add script for GitHub Topic Repositories and update External Links. PR [#13135](https://github.com/fastapi/fastapi/pull/13135) by [@alejsdev](https://github.com/alejsdev).

build:windows --features=compiler_param_file
build:windows --features=archive_param_file

# Speed Windows compile times. Available in VS 16.4 (we are on 16.11). See
# https://groups.google.com/a/tensorflow.org/d/topic/build/SsW98Eo7l3o/discussion
build:windows --copt=/d2ReducedOptimizeHugeFunctions
build:windows --host_copt=/d2ReducedOptimizeHugeFunctions

# Before VS 2017 15.8, the member "type" would non-conformingly have an

    provides a big compile-time speedup, and effectively raises the minimum
    supported MSVC version to 16.4 (current: 16.8).

    *   See:
        https://groups.google.com/a/tensorflow.org/d/topic/build/SsW98Eo7l3o/discussion

*   TensorRT

    *   Removed the deprecated `session_config` parameter for the TF1-TRT
        converter `TrtGraphConverter`. Previously, we issued a warning when the