The video on top proves that overheating issues is now gone thanks to the new 3.0 A7rII firmware. The video has been shot for 2:51 hours(!) in super 35, 24p 100mbps mode. Jonathan writes:
As I’m posting I’m still recording and I’m at 2 hours and 51 minutes. I’m going to stop. Just to be clear. The recording still stop at 29:50 each time. I just pressed record immediately after it stopped. Overheating would normally occur right after the first recording.
The new firmware also improved the chromatic aberration correction on the Sony A7rII and A7sII camera.