UDS Server component will perform the MySQL database DB update, making it compatible with the new version. The UDS Tunneler machine doesn’t need any update process since it keeps no information. A new deployment will be enough.
Before proceeding to upgrade UDS Enterprise you must have all the configuration data of the current servers stored, have a valid serial number for the new deployment of UDS Server Appliance and have all the connection credentials against Mysql DB.
The detailed update process can be viewed on this manual.