Advanced authentication and authorization with the AWS SDK for .NET - AWS SDK for .NET (V4)
This documentation is a draft for private preview for regions in the AWS European Sovereign Cloud. Documentation content will continue to evolve. Published: January 2, 2026.

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.

Advanced authentication and authorization with the AWS SDK for .NET

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

Topics