- Gradient meshes for drawing fancy color gradients controlled by Bezier curves.
- CanvasVirtualImageSource for drawing just the visible part of a large virtualized surface. This is a low level API that requires lots of manual plumbing, equivalent to the existing CanvasImageSource. A higher level, easier to use CanvasVirtualControl layer is coming soon.
- CanvasDevice.GetSharedDevice overload lets you omit the forceSoftwareRenderer parameter.
- Better docs about handling device lost.