In regards to the naming choice, while I do think there will be some changes – I do not believe they will be overly complicated to enforce. The PCI SSC said that with each new life-cycle the new version would be a _.0 one and that any updates made during the life-cycle would be a _.1, _.2, _.3, etc ones. I see the choice in naming a result of a new life-cycle, not an indication of the content within it. However, we won’t truly know the full impact until all the details are out.
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