Looking at http://www.bicyclebluebook.com it makes a distinction. 2010 is shown as cd(space)01 where 2011 is cd0(period)1. Is that just a numbering change from 09-10 to 11-12? Googled it and can’t tell if that means anything. Bikepedia has nothing for 2010 or 2011 for QR.
Just doing some research and was curious.
TIA