It would be good to be able to see the complete list of previously approved versions of a page.
Currently you can go to the prior approved version (e.g. v.4), then go to the previous version (e.g. v.3), and then you can see the approved version prior to that version (e.g. v.2).
This procedure is rather unhandy. A view listing all the approved versions of a page would be more comfortable. Or even an indication in the page's history view, e.g. adding "approved" to the comment, or an additional column.