« on: December 10, 2012, 10:34:33 PM »
For what it's worth, Canon still used the old system until at least August of this year. I know as I took delivery recently of an 'L' lens with the date code "UA08xx" which is August, 2012.
It depends. New lens models seem to have done away with date codes, while existing models still have them. apparently, Canon is not going to spend money to convert existing lens models to the new system, it will happen by attrition. The 70-200mm f/2.8L MK II was the first over two years ago.