"Some of the changes mentioned in sections below, might break your existing Grasshopper definitions. We hope this should not be causing a lot of trouble and rework for you, since in most cases the older components can easily be replaced by new ones without changes to the actual workflow. "
Best to not count on it (scripts updating) while they are still in Beta.
Using the GH bifocals plugin I can see what RiR components were where even when I open the file outside Revit, take a screendump and recreate it with new components inside Revit. Good enough!