Re: Enterprise != consumer market
To be honest, the Solaris minor number is pretty much a major/maintenance release.
Solaris 11 has been kicking around for almost 10 years.
Ive tried 11.2 11.4 11.5 (I think).
As far as user land goes, Solaris shared objects have version fucntion interfaces.
As far as kernel land goes the hadrware/DDI is pretty unchanged since Solaris 8 - minors odds + sods.