I have been creating applications on Windows CE with .NET Compact Framework 3.5 and as you might guess lots of features of .NET 4, 4.5 and later does not exist in compact (espacially XAML support).
Are those features available on Windows Embedded Compact 2013 and/or Windows 10 Iot Core?
Before down-voting consider that there are not enough resources on these topics on the internet. Best source of knowledge comes from experienced people.