“If it ain’t broke…”

Does vB 4.2 bring anything to the table that 3.7.0 doesn’t? I suspect not, being involved in the running of forums using 3.8.2 and 4.1.4, apart from a few bells and whistles which are not crucial to the basic needs of a forum.
If this version is stable and secure then I see no point in going through the headache of an upgrade just for the sake of it….