The Device Upgrade screen displays available licenses for devices within a cluster. It displays the total number of AP licenses.
To view upgrade statistics at a system level:


The Device Upgrade screen displays the following information:
| Upgraded By Device | Displays the MAC address of the controller, service platform or peer model access point that performed an upgrade. | 
| Type | Displays the model of the access point. | 
| Device Hostname | Displays the administrator-assigned hostname of the access point or the device receiving the update. | 
| History ID | Displays a unique timestamp for the upgrade event. | 
| Last Update Status | Displays the initiation, completion or error status of each listed upgrade operation. | 
| Time Last Upgraded | Displays the date and time of the last upgrade operation. | 
| Retries Count | Displays the number of retries made in an update operation. | 
| State | Displays the done or failed state of an upgrade operation. |