Google has confirmed more details about Android’s auto-reboot feature, including that it's optional and that it isn’t rolling out yet.

Google’s mobile operating system Android will now automatically reboot if the phone is locked for three days in a row.

Google Systems updates for April include a new security feature. If you leave your Android phone or tablet locked for three consecutive days, your device will automatically restart. You'll need to re-enter your passcode to open the device.