I have 500+ versions in my production GIS database. As a regular maintenance, I need to run the version difference tool to check what versions are posted and what are not and generate a report every month so the posted versions (those with no edits in it) can be deleted safely. Using version difference tool in ArcMap is tedious work. Does anyone know if a geoprocess tool is available which can be used as script or model builder tool to automate this process? If this does not exist, if anyone can suggest a workaround to script/automate this, it will be highly appreciated.