The update includes the October 2020 Android Security patch, optimized battery performance, and more importantly, the always-on display. It also thaws frozen software, exterminates a bug that causes the device to overheat and more. OnePlus says that you should not turn off your device once the handset is installing the update. Even dialing 9-1-1 is frowned upon when the update is being installed on your phone. The update weighs in at 320MB.