Kudos to The Team! 2.5 hours from start to finish, using the
Changed Files method. Didn't have to disable any extensions. I simply disabled the forum, renamed the forums' styles directories, so I could restore any layout changes I've made over the years, and followed your script. Post install changes were easy to identify and remedy.
Very pleased and impressed with the new embedded canonical thread naming. I'm sure there are gobs of other upgrades/updates I've yet to discover. Everything went forward without a hitch.
I was holding up on doing any more updates because 3.3.2 was such a top performer, so reliable. I generally don't fix what's not broken.
However, we were having unresolved canonical duplicate page issues reported by Google's Search Console Insights, so we were hopeful the new embedded feature for that resolved Google's nag. Didn't even know that was in the upgrade, otherwise I would have done this sooner.
Great job
TEAM!