When you want to upgrade from custo diagnostic 5.1 to 5.2 you have to perform the following steps.
Download the following two files fromĀ http://www.customed.de/diag your license number is the password for this download area
Start with the upgrade from the server by pressing right mouse click on the custo-diagnostic-server-setup-5-2-X.exe, choose Run as administrator
The following appears, press next
The following message will be shown.
The apache Tomcat server will be stopped
The installation will be performed and at the end the message instalaltion complete will show up, press next to continue.
Press Finish to complete the custo diagnostic 5.2.X server installation
In case you would like to change the database from e.g. H2 to a MariaBD database you can find the instruction in the following LINK