the pads can be used on every year manufactured since the 2008 (A) model.
the changeover took place somewheres around 2010, when Kaw 'changed' the pad formulation, in an effort to supply a cure for all the reported brake 'shudder' issues it was seeing, and again upgraded (I think) a second time when the linked brakes became a current production, again, due to some issues with longevity, and complaints, caused by the 'linked' system using the right rotor more than the left rotor, when linking...
all in all, I would think the newest pad formulation would be the best, as the older ones (gen I, '08-'09) were kinda 'gummy' and transferred pad material to the rotors when heated, and then held on at a stop.
the calipers should give you a hint also, as they are all used on all years... so, the parts interchange is viable...
downstream, when they sell off the two prior old stocks of pads, they will supersede them both with the newest number you found.
when my EBC's wear out, I'll buy the latest OEM's again, the -0122's
figure they have the formulation worked out now...