The only reason I asked (I'm quite interested in English language) is that I've never heard the word used. I know it's meaning, though I've never associated it with the word standard.
Anyway, back to the questions. A lot of people are going for the BSH PCV fix, but I've also read that many people have had issues with it. I went for the new OEM PCV which has been updated recently.
And yes, the Revision D diverter valve is the latest one.