I’ve noticed that on all of my Posts, at the very bottom of the Post, a horizontal-rule with the word “History” below it has suddenly appeared on all of my Posts. I compared this to my Localhost version and there is no such issue.
I didn’t change the template, so I’m wondering where that’s coming from.
You can see example in private content.
PS. I found the issue, the plugin: Thin Out Revisions is adding this History and HR. There’s a setting in it (show memos on post) that was selected inadvertently.
No need to follow-up on this support request.