1. Support for the RF 85mm f1.2L USM DS lens has been added.
2. Corrects a phenomenon in which the function or setting value assigned to the control ring may change when the control ring is operated in Eco mode.
3. Corrects a phenomenon in which the camera may stop operating properly during 'Auto transfer' when using Camera Connect with a Wi-Fi connection.
4. Corrects a phenomenon in which high-speed synchronisation with use of an external flash may not operate properly depending on the camera's setting for C.Fn2 'Set shutter speed range'.
To download the firmware, go to:
The firmware download is available for Windows and Mac operating systems. Full instructions for installing the firmware are supplied (click on 'More details' on the firmware page).