What information on the binding will...
What information on the binding will identify the "model year".
HI Barb, the only way to know for sure is to contact G3 and give them the serial number on your binding. S/N can be found underneath the Toe and heel pieces if you take them off of the mounting plates. There are some indiators if you do not own a binding yet. The Onyx was initally launched with a whitish/grey heel lifters which later turned to Black/Grey as they are now. Other changes have been the addition of the rubberized section of the toe that you depress with your pole (11/12) as well as the change of color to the mode change lever on your heel from black to red.