Hi!!
Just installed and tested official firmware and captured hdmi with bmd Ultrastudio express (PRORES HQ 23.976), also captured same footage ALL-I to compare.
As I can see, captured prores has slight shift to green :(. ALL-I looks well white balanced. Definitively issue from new firmware, so post white balance should needed to correct this little shift.
Also...NO AUDIO THRU HDMI on official release!!