We just upgraded to Draggableviews 2. This is a great benefit for most people, as Draggableviews 1 for D7 has no real future.
There is however no good upgrade path and you have to change the configuration of your views before you can proceed with the upgrade. With that in mind we have to at least maintain a patch that let's you get NS Core with draggableviews 1 until you have time to upgrade. This issue is about that.