Would anyone know if the new iMacs that were released in October (NOT the Retina iMac) are able to be downgraded from Yosemite to Mavericks? Or rather, can the drive be successfully wiped and re-imaged with a Mavericks-boot without issues? Has anyone tried this? My place of work is looking to purchase new iMacs. We are trying to keep a standard drive image for compatibility purposes, and we are not quite ready to upgrade to Yosemite. I am struggling to find documentation on this. Many thanks!