I think it's important to remember that Dotnet projects can use code built for older releases; to an almost absurd degree, and if you don't go to before the .NE

I think it's important to remember that Dotnet projects can use code built for older releases; to an almost absurd degree, and if you don't go to before the .NET Framework divide, you largely don't even need to change anything to move projects to newer frameworks. They largely just work. The .Net platform is honestly the most stable it has ever been.