I've updated my Sony A7r firmware to version 1.02. It took about 15 minutes and I did not brick the camera updating it through the Mac utility like some have reported.
I have instantly noted a massive increase in boot up time, and auto focus is a lot faster.
One thing I've noticed is that people were saying there are new apps available. I see none. Yes there are new apps available for the Sony A7 & A7r but they have been available for a few weeks now. Like the timelapse app. Still no bracketing app so HDR Photography has to be done manually or with a faster shutter while keeping the shutter depressed.
Update: Just found out there is a shutter release that works for the Sony A7 & A7r which can be used for HDR photography. If you don't mind dropping $50 bones.
It's called the Sony RM-VPR1 Remote Control. That is a non affiliate link to B&H.