FreeCAD 0.20 could be FreeCAD 0.91
Means after 0.19 we could switch to 0.91
If we countiunue the way we did most of us will not even see a FreeCAD 0.60 in their life ...

+1
I would even be more offensive: instead of 0.19 the next version becomes 0.90. Except of toponaming FC is as stable (in terms of productivity) now as e.g. Solidworks.