... if you get them from J&R or B&H you're certain to get the "new" version.
And... you will be very, very pleased with them - especially with a matching source and amp. Few phones sound as good with my sources and DV332.
I couldn't say that about the first set of HD650s I had... about a year ago... which were the "old" version.
The only reason I returned my "new" version, which I received only last week, is... they sounded IDENTICAL to my "new" version HD580/600s... and... I couldn't justify having to sets of phones, which sound IDENTICAL, even though the HD650s were a real bargain.
Even considering that... I still had a difficult time deciding to return them - they sounded so great!