This thread is very old (no one has posted in it for two years), but if you’d like to see which devices are compatible with Hubitat (ie staff have tested with built-in drivers), then that list has been moved here in the hub documentation.
There is a similar list for devices that community members have confirmed will work with Hubitat, some with built-in drivers but others with custom drivers. It’s a wiki post maintained by the community, so it’s not necessarily comprehensive or up to date, but it’s the best (only) list I know of.
@bobbyD please consider closing this thread.
Edit: the integration with Lutron (which works with not only caseta, but also RadioRA 2 and RA2 Select) also has instructions on how to use within the hub documentation pages.