So Devonthink notified me that an update was available. As I have done many times in the past, I clicked install and waited. After a while I noticed the app didn’t relaunch. When I tried a manual launch the app had a slash through it’s icon and said it can’t run on this version of Mac OS X.
I’m running leopard on a G5 Mac. Yes it’s old, but it is my work computer and this is what they provide me. I tried downloading directly from the website but that install didn’t work either. I looked in the legacy area on the Website and it only had version 1.x Finally I checked the trash and there was the old version - 2.3.5 and it reinstalled correctly. Everything seems fine.
I hope this is an isolated incident, but if you are running a system like mine, be careful.