Hi, 

At our company we are running Open Project Enterprise V12.5.8 self hosted. 

We would like to upgrade to V13

On the installation page : https://www.openproject.org/fr/docs/installation-and-operations/installation/packaged/#ubuntu-2004

there is no more package source for Ubuntu 18.04

Is it safe to use the package source for Unbuntu 20.04 with a server on Ubuntu 18.04 ?

Thanks

Michael