People bashing the Tarrasch who assume Black gets an IQP, please consider the following:
For all intents and purposes the d pawn cannot be defended by any pawn ever, and is in a sense, "isolated", even in that line. Perhaps a better way to say it is that black always gets a "weak" d pawn.
Yeah the new Aagaard/Nitrils stuff. I don't have their book, but I can't recall a recent top game featuring this line...
Aagard deviated from the suggested 22...g6 in his book- I guess I know the reason.
Akobian lost recently to Mamedjarov in that variation (he picked the old move 12...Qa5 instead of 12...h6).