Depends if you subscribe to the idea that open-sourcing something is equivalent to putting it out to pasture.

MS’ problem is that Visual Studio is the only “real” software they produce that uses WPF - which also happens to be a flagship product. They need WPF to stay up-to-date but they can’t afford to invest their own FTE resources into it either when other products are more important as far as the C-levels are concerned.

I’m curious what this means for UWP XAML - as it has its origins in WPF. Can Microsoft use open contributed WPF code in UWP?