We support 10 revisions for all post types on HappyPress.
Why do I have more than 10 revisions?
We don’t force sites on HappyPress to maintain only 10 revisions. So the number of revisions that is visible on your instance of WordPress may ‘grow’ from time to time. But don’t rely on it – at routine maintenance intervals, we will cull results to the 10 most recent revisions.