$10 transition period

Since we're in a transition period and some of the serial numbers are being recycled, is it worthwhile mentioning in the comments when a $10 bill is actually a 2005 series vs a 2001 series?

the last '01 prefix was BET, started '05 with BEU.
no recycling yet. (and no prefix has EVER been re-used)

Thanks. I looked a little further down the list and I think I found the answer. My main concern is that I'm getting 2005 series $10s, but in the meantime they're being recognized as 2001 series bills. Either way, I'm sure a hit on them would count.