How to set the site to check for upgrades to the DNN core framework. Enabling this field will display the Updates Available button on this page as well as on the Control PanelDNN comes with a choice of two Control Panels called ControlBar (default) and the RibbonBar. The Control Panel enables Content Editors (optional), Page Editors, Administrators and SuperUsers to access a range of site building and administrative tools. (for SuperUsers only) whenever an upgrade is available.