The last update to LR Classic was at least 26 days ago. Which I did the day it came out and that is what is recorded on my system, that I did the update 26 days ago.
You need to State the Exact version number of LR classic that you are having problems with.
Go to the LR Help menu and select System Info and post the exact version number.
The newest version of LR Classic is 9.2. And that was an Update from 9.1. V9.2 added support for newer cameras and did NOT Remove support for any cameras (Niether updates or upgrades ever remove camera support).