I just ran better delete for the first time under 3.8
It seemed to be offering to delete all the latest revisions of my pages as well as the updated ones.
Pages that have not been edited for years appeared on the list....
Title: Movie review
Post Date: 2012-08-25 10:43:46
Last modified: 2012-08-25 10:43:46
I did not click "Yes, delete them".