Some enterprise customers of ArcGIS Online would like to have the possibility of rolling back to a previous version of a webmap.
In large organizations the permissions to create and edit webmaps are delegated by IT to end users, who are the domain specialists. However, some of these webmaps are part of mission critical apps and should be possible to restore them quickly in case a user mistakenly deletes or changes the map in a way that renders the app unusable.
Hence the request for a simple version control to webmap documents on ArcGIS Online, in a similar way that Content Management Systems and Wikis have version control to pages and/or attached documents.