The 64bit version does install and the app does run on openSUSE Leap 42.3.
As and FYI, the next version of openSUSE Leap (which will be version 15) is schedule to be released in May. That version will have a new enough version of glibc that the other packages should work. Until then openSUSE Leap 42.3 is the latest version of openSUSE. There is a rolling version of openSUSE named Tumbleweed that gets updates weekly (it is a rolling distro after all) however Tumbleweed would not be considered a “stable” version of openSUSE. I would strongly suggest that you consider the current version of openSUSE Leap the “current version of openSUSE” and test against it accordingly. OpenSUSE Leap is reved about once every 1-1.5 years so you shouldn’t have to test against “older distributions” for much longer than that.