General ACCAChanges to P1 & P3

Hi, I was wondering if anyone could help clarify the changes coming to P1/P3... I saw a poster/meme on facebook, that said all 5 P level exams need to be complete by September 2018 in order to avoid the new combined paper.. Not the most reliable source of information I know, but now i'm confused, surely its just P1 & P3 that we need to have passed and the other 3 are 'irrelevant' I came across the feature on the ACCA website that determines if you'll be affected by the changes and it says no... but hey, I'm an accountant I just want to double check ! hehe Thanking you!