Version number display

I have upgraded and installed new RT 3.4.2 and in both cases the
version number displays as 3.4.1 (my current version) when RT is run.
Is this simply a cosmetic change that was not made? Anyway, I
reinstalled as new because I thought the 3.4.2 upgrade had failed
somehow because of the display (3.4.1). Should I fix the version
number display myself and assume all else is OK? or is this indicative
of perhaps other files missing/incorrect/etc. ?

Stephen Hancock