There has been a problem with the upgrade path for the ds-389 package in Ubuntu for several years and it is clear that Canonical is not going to fix this. My narrow question is, is there any way to work around this to enable upgrading a Kolab install from the now unsupported 18.04?
My larger question is that I have had to move and reinstall my Kolab server twice before because there was no upgrade path from either the debian or ubuntu versions I was on at the time. In general is there a distribution that Kolab is committing to supporting? Is it going to remain possible to run my own hosted Kolab going into the future?