Sidecar requirements essentially hidden

I find it very disappointing that one on the features I was looking

forward to does not seem to support my early 2015 MacBook Pro. I may

have skipped the update (for a while) if that information had been

shared early by Apple. Looking at the Catalina information from the Mac section this is not mentioned.

Very disappointed that was not even a link from there or in the footnote 5.