Was looking at the status of my Opera installation and I'm rock solid at version 35.0.2066.82 since renaming the autoupdate files.
Opera is now at version 38, but Opera's changelog page only goes to Opera 37, even though 38 has had several changes. The changelogs show a lot of issues with ad blocking, introduced with Opera 37
so I decided to go with Opera 36 for now, but actually finding where to get older versions took a little digging
Hopefully Opera hasn't changed the autoupdate file layout. Here goes nothing.