Only FYI: Regarding the changes in particular the incompatible changes in the printing system from openSUSE 13.1/13.2 to openSUSE Leap 42.1 see the openSUSE Leap 42.1 release notes that are installed by default in the RPM package release-notes-openSUSE in various languages and also available online (English) at https://doc.opensuse.org/release-notes/x86_64/openSUSE/Leap/42.1/