If you read our coverage of Game Update 55 including Consolidated Stats and Primary Stat Changes and have checked out the EQ2Wire Mega-FAQ, you’re probably fully up to speed on the changes to Stats, Stat Consolidation, etc.
But if not, or you want to hear it from the source, timetravelling has posted a thread which covers these topics. He’s received several questions after the fact, so it’s likely that his writeup will continue to evolve.