ANT+ sensors: Di2, HRM, power meters (Stages L gen 3 or Power2max type S), Varia radar 516 and remote control.
Bluetooth: Android phone.
On my Egde 530 I rolled back firmware and now using version 7.10 and think it is quite stable, but sometimes I lose contact with radar and Di2, to quickly get it back automatically. Is there an even more stable version than 7.10 with no drop outs?