Do note that XAML is merely a way of describing nested objects in XML. It's just a markup language and it never was incompatible to itself. Heck, if you wanted

Do note that XAML is merely a way of describing nested objects in XML. It's just a markup language and it never was incompatible to itself. Heck, if you wanted to, you could use XAML to describe Swing GUIs for Java; you just need a parser that turns the markup into objects. The implementations of the objects referenced by XAML may differ and have incompatibilities, but that's not a XAML problem. Xamarin.Forms uses completely different ones, for example, while still keeping the same markup.