I want to check recent updates causes on Parallel (RAS) remote Application Server

i want to investigate whether any recent updates or changes to the Parallel Remote Application Server RAS have caused any compatibility issues with the hosted applications or not. please suggest me how to check.

I am guessing you want from version 19.0 to 20.x? Can you confirm please?

As far as the release notes go, there should be no issues with hosted applications.