Let’s remove any mystery or confusion. The PMP® Exam will change on July 31, 2013. July 30 is the last day you can take a 4th Edition PMP Exam. Starting Wednesday July 31, the PMP Exam will be based on the 5th Edition PMBOK Guide.
No exceptions. Read this paragraph carefully. No candidate will be allowed to sit for the 4th Edition PMP Exam after July 30. (Keith Rosenbaum of PMI made this point clear in the PMI REP LinkedIn thread that he moderates.) If you are a Student studying for the PMP Exam, keep this in mind and plan accordingly. As you know, a Student has 3 opportunities or attempts to pass the PMP Exam in a year. However, if that Student prepares for the 4th Edition and fails the exam prior to July 31, the only exam the Student can take after July 30 is the 5th Edition. No exceptions. Please be aware of this risk and schedule accordingly.
PMI posted this schedule for updating its certification exams: (Note: no change planned for the PMI-ACP at this time.)