Don’t know if you heard about .NET Framework Platform Update 1 it released on April 18. 

It is a new target framework.  I want to create a NuGet package that targets this framework.  This is my first NuGet package.

I’m reading the docs and I don’t know what string I should use for {profile}.

The official names are

 .NET Framework 4 Platform Update 1 (KB2478063)

.NET Framework 4 Client Profile Platform Update 1 (KB2478063)

One more thing... if you create a project file and target PlatformUpdate 1 you will see this

I assume that means that I should create a folder named Net401-Client and Net401-Full for the Platform Update 1 bits

Ok... solved my own issue. 

I created folders

Net40 (holds Framework 4 builds)

Net401 (holds Framework 4 Platform Update 1 builds)

Tested it and it worked perfectly.