I have just updated to 7.9 from 7.3 and totally agree with you about the focus peaking, it's also nice to have those extra features too and the redesign is pretty cool too!
One downside from my point of view is that when using the 2:4:1 aspect ratio you can no longer set 75fps using the off speed frame rate function, it only has 60 as it's maximum.
I shot in this aspect ratio for my first film so a bit puzzled as why this is now not an option.
Although the current film I am working on is shot in DCI it does matter at the moment, but wondered if anyone else has come across this?