The edge scroll is mostly working in this version, but it's broken when you try to scroll down.  This makes it quite hard to use as your primary means of moving around, which is how I was trying to use it.  More detail:  When you edge scroll right, left or up, it seems to work fine, but when you edge scroll down, it seems to work intermittently.  I think what is happening is that the user interface features on the bottom edge of the screen are having a negative interaction with the edge scroll feature, and the app can't figure out properly when you try to edge scroll down that that is what you are doing, and not just trying to click on one of the interface features on the 'toolbar' on the bottom of the screen.