Version 4 (V4) of the AWS SDK for .NET has been released\!

For information about breaking changes and migrating your applications, see the [migration topic](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html).

 [https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html](https://docs.aws.amazon.com/sdk-for-net/v4/developer-guide/net-dg-v4.html)

# Advanced authentication and authorization with the AWS SDK for .NET
<a name="advanced-auth"></a>

The topics in this section provide information about advanced techniques for authentication and authorization in your AWS SDK for .NET application.

**Topics**
+ [Single sign-on](sso.md)