Short answer: The sixth edition is still the correct version to use and our PrepCast and Simulator are following the correct and current exam specifications. Additionally, and as of right this moment, PMI lists the 6th edition as the correct reference and version to use on their website.
Long answer: Please watch this video for all the details:
I'm still confused on what PMBOK guide I should use if i plan on taking the test in a month or so? Most the material references 6th edition but appears the 7th edition is the most current?
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®