On October 16 of 2014, Apple announced a modest upgrade to the Mac Mini, the puckish computer that plays caboose in Cupertino's desktop train. And then... nothing. For four years, despite remaining for sale, the Mac Mini languished without any updates at all. But now, it's back with a vengeance. "There’s another small but mighty Mac our users have been waiting for,” said Apple CEO Tim Cook at an Apple hardware event in New York.