As the update is now rolling out and we aren't likely to receive any documentation from Acer covering what is in the update, I thought it would be worth starting a topic so everyone with the update can post details of anything new they have found. So far, the differences I have found are limited and really wonder what the purpose of the update was.
1. For the dual sim model, the icon that used to show no signal for the 2nd sim (when not inserted) now shows a graphic of a sim card with a question mark on.
2) When pressing the right button on the phone (recent), instead of having to close all apps separately, there is now a button at the top to "remove all"
3) Pressing the recent button in some apps used to quickly flash up the settings menu before exiting (because this button used to be used for settings in previous android versions) and this no longer happens
4) The wifi notification icon at the top of the screen (when wifi is enabled) used to show as white when connected to wifi and change green when there was internet access. This now stays white so you have no visual indication of whether connected to the internet (not a good update)