It requires of some css modifications and some work. But to show the revisions in each page, could be a good way to show the readers what´s new in a page.
Is in my to-do list.
– Imagine, we have a translation, and then we update the book, with that plugin we can have a easy way to show to the translators or adaptators of the book what´s new in the page.
–More features can be developet with that in order to be able to give more information to the people who adapt or translate of our book.