We also updated our rear seat. Making it more comfortable, adding a 3rd seat belt for those who have young kids, and adding LATCH (lower anchors and tethers for children) hardware to allow those with car seats to attach them to the airplane just like their car.
Over the next couple of weeks I will be writing a few blog posts describing the ups and downs of designing and certifying these new features. Until then check out CirrusAircraft.com for more details.