This document describes the revision retention policy for the Faculty WordPress Site pilot project. It applies to all WordPress sites on the sites.lsa.umich.edu server.
WordPress stores a very granular revision history for every page on every site in its database. As the number of sites and pages grow, so does the database; as the database grows, performance degrades. If we only retain a relatively small number of revisions then the database won’t grow as big as fast and we won’t see performance degrade as badly.
This policy was approved on 2014-04-28 by Pat Belden, Director of Web Services.