Benefits of the update for the Sigma 35mm f/1.2 FE (info here):
Improved the phenomenon that the focus does not work on rare occasions when the focus mode is set to AF-C (Continuous AF).
Benefits of the update for the MC-11 adapter (info here):
・It makes the converter compatible with the SIGMA 120-300mm F2.8 DG HSM | Sports in SIGMA SA mount, that has the latest firmware Ver.1.02.
・It has improved a rarely-occurring blinking phenomenon during movie shooting.