Currently using 4.5 version, how to upgrade to a newer version?

Hello,

You've created 2 posts. please remove the other one, and provide proper topic and description in current one.

Here you can see some on-prem update guides:

https://help.celonis.de/display/CPM45/Getting+started

Guide itself:

https://help.celonis.de/download/attachments/17039422/Celonis%204.5%20Update%20Guide%201.9.pdf?version=1&modificationDate=1561991062000&api=v2

Best Regards,

Mateusz Dudek