I wonder if it kills some bugs as well, been having problems with the Battery Grip of the camera crashing and all. Let's see... UPDATE: So far so good, before the update I'd connect the grip, turn the camera on, and suddenly things would go berserk, the camera would be "possessed", the lens would AF constantly, the screen would go black, sometimes it would blink or just freeze. Now I just updated and switched on without the grip, then with it, and all is fine! =) Whenever I test it out in the "real world" I'll update this post again. Cheers.