So according to the change log, no need or benefit to upgrade unless your using one of the new rims.
EDIT: I'd bet money that the V2 of the GTE wheel had its mounting mechanism changed so it's "locking screw" aligns at the flat 12/6 o'clock on the new models (TX, T300, latest T500). No real need to come out with a V2 besides correcting that oversight.