Just a heads up for anyone that hasn't updated their computer recently, but in the Release Candidate notes for Camera Raw 8.4 and DNG Converter 8.4 Mac OS 10.6.x (Snow Leopard), Windows XP and Windows Vista will no longer be supported. Since they were released in 2009, 2002 and 2007 respectively, IMHO it is hard to argue with the decision. Especially since Microsoft itself is ending support for XP on April 8, 2014.