GoWPF now supports both .NET Core 3.0 and .NET Framework versions 4.0 - 4.8. We are no longer supporting Silverlight or .NET Framework 3.5.
There are no serious incompatibilities with 2.2.4. The most interesting thing from the end-user perspective is that there is now a DragSelectingTool.Delay , so that a quick mouse-down-and-drag in the background of a Diagram will start the PanningTool, but a mouse-down-wait-and-then-drag will start the DragSelectingTool. This behavior was copied from GoJS.