Are we talking web frontend, or can we extend this to desktop GUIs as well (that may be cheating, but bear with me). Windows Forms and WPF are both still suppor

Are we talking web frontend, or can we extend this to desktop GUIs as well (that may be cheating, but bear with me). Windows Forms and WPF are both still supported. If you're a business built on Windows Forms (very productive for GUI development), you haven't had to worry. Even VB.NET is still supported, although not receiving active language additions. That said, I personally wouldn't choose to build on MS tech.