OpenSUSE package manager zypper lacks a way to see packages' version statuses in brief. It's also not possible to ignore package/RPM versions when checking or choosing packages to upgrade (eg. from version 1.2.3-1.2 to 1.2.4-1.2). With pkg_version-zypper.rb script you can first see a nice list of package statuses and ignore packages' minor versions (eg. from version 1.2.3-1.2 to 1.2.3-1.3) when upgrading your software.
In daily usage basis, this enables to avoid re-installing tens and tens...