Upgrading openSUSE with zypper

With no doubt, an installation from scratch allows getting rid off of all misconfigurations, packages installed once and never used, and broken or unneeded dependencies that most of the times we accumulate from time to time while playing new applications or system settings, upgrading openSUSE Leap through zypper instead, might perform enough well and, at the same time, avoid us the standard, several, boring configuration steps, in order to save precious time.