The truly radical change in Hangout is of course the recent addition of an alert sound being played when Hangout warns you they're about to kill your chat for n

The truly radical change in Hangout is of course the recent addition of an alert sound being played when Hangout warns you they're about to kill your chat for no particular reason. Long lived hangouts rarely get to stay on screen, so the silent "are you still there" message shortly followed by a disconnect was painful. I'm still not sure how much money Google spends on maintaining p2p video calls open that makes it worth pushing users to stop using Hangout so darn much.