How do you update the .NET API which is used in a project?

To update the API to the latest version in your project, you'll need to run the following statements from Visual Studio NuGet package manager.

For version 7.3 and below
Install-Package DocuWarePlatformApi 

For version 7.4 and above
Visual Studio: Install-Package DocuWare.Platform.ServerClient.Extensions 
Visual Code: dotnet add package DocuWare.Platform.ServerClient.Extensions 

KBA is applicable for both Cloud and On-Premise systems.