To my knowledge, support has never been dropped for any camera. My suspicion is that you have either installed camera raw in the wrong folder, or else you have two versions on your computer. Either way, camera raw will not work.
The error message I get is "Could not complete your request because of a disk error". I get this message even if I open Bridge as admin. However, if I login as superadmin, then I am able to open the CR2 files in Camera Raw. It is not clear what changed in the application that affected these permission levels. I believe the error message is not representative of the issue since the disk tests as healthy.