You can. No one said you couldn’t once re-flashed. If you are looking for an update prompt from within Ropieee I don’t know if that is viable. But you can certainly kick Roon Bridge which should then put the latest version in. I suspect we are talking at crossed purposes!
It was a series of responses to a request made by someone for Roon 2.0 who also tied Ropieee into that request so it is in good faith even if not strictly all about Roon OS 2.0.