I upgraded our aging 3.3 to 4, then straight to 5. It went pretty Ok, though I had some alerts about missing files when I upgraded to 4:
No such file: /opt/otrs/var/httpd/htdocs/skins/Agent/default/css/Support.Default.css!
Etc. There were several similar missing files. Is this a critical issue or ignorable?
Upgraded to 5 - error messages
Moderator: crythias