Comment by qingcharles

The biggest change for me has been the ability to deploy my web sites to a Linux box instead of having to deal with IIS.

WinForms app development hasn't changed one bit in 25 years.

If you code in C# then they've added some nice new language features every year to make your code a little tidier.

And the whole framework is totally open source now, which is a bonus.

There's nothing I'm really asking for. It does pretty much everything I need these days.