I've filed at least one feedback. I'd suggest others do the same. The current state makes Updates extremely cumbersome for those of us who must know what the revisions were.
Also, if there isn't already one, start a thread at Apple Discussions.
Looks like they've fixed this today (late?). I just now checked for updates, found a few, and clicked to see the changes. Lo and behold, they're back. Yay.