Folder Description The "DatabaseUpdate" project folder is intended for storing code that supplies initial data (default User objects, etc) and handles a database update when the application version changes. Relevant Documentation Supply Initial Data (XPO) https://docs.devexpress.com/eXpressAppFramework/112788 ModuleUpdater Class https://docs.devexpress.com/eXpressAppFramework/DevExpress.ExpressApp.Updating.ModuleUpdater Application Update https://docs.devexpress.com/eXpressAppFramework/113239 How to: Update the Database Structure after the Persistent Class or Property Was Renamed or Removed (XPO) https://docs.devexpress.com/eXpressAppFramework/113254 Debugging, Unit and Functional Testing https://docs.devexpress.com/eXpressAppFramework/112572