|Thank you for using Canon products.
Firmware version 2.0.0 incorporates the following enhancement:
This firmware update is for lenses equipped with older firmware versions. If the lens’s firmware is already version 2.0.0, update is unnecessary.
The version of the lens firmware can be checked on the camera menu.
Should you have any questions about the announcement, please contact the Authorized Service Facility in your area or you may contact the Call Center within your region.