update from Pro Plus 9.1.02 b71 /mysql 5.1 to version 20

Anwendungsserver VersionApache Tomcat/6.0.26 SysAid VersionPro Plus Edition Buildv9.1.02 b71 Datenbanktyp MySQL Server: virtuell, 2003R2 standard SP2 I am planning an update to the newest version on a virtuelle Machine (Server 2019). Do u have a Guide? Even for the update of mysql...now on v. 5.1....i know we need the 5.5.... Thanks