How to uninstall OmniOutliner 3 but leave v. 4 intact?

I’ve had both OmniOutliner 3 and OmniOutliner 4 coexisting on my system since v. 4 has come out. I’ve had no reason to use v. 3 and so now it’s time to let it go. What’s the best way to uninstall OmniOutliner 3 and any support files specific just to it?

I use Hazel and it will identify related files once I drag the app to the trash, but sometimes it’s hard to tell which files are specific to which version. Do these v. 3 and v. 4 share any libraries, preferences, or other files?

Any suggestions? I searched the forum but didn’t come up with anything (searches for “uninstall” all centered around OmniFocus).

v3 and v4 do not share any support files. OmniOutliner 4 is sandboxed so pretty much everything is in its container. Aside from the preferences, everything for OO3 would be in ~/Library/Application Support/The Omni Group/OmniOutliner and ~/Library/Services for the clipping service if you had Pro.

Many thanks, Derek. That was just what I wanted to know.