As I have moved my exam date from July 29, 2013 to Oct 03, 2013 due to insufficient preparation (scored low in mock exams), so I would like to know that if Rita Mulcahy's 7th edition will still remain the main course for preparation or any new edition is coming up? I would also have to give a thorough read to PMBOK 5th edition as I only read 4th edition previously. So my question is that will the same reference material suffice?? or is all the material and study notes available become obsolete?