If you own an Essential Phone or the LG G3 on Sprint’s network, then you should be seeing this update on your device. For the Essential Phone, the software version is NMJ32F and it includes a couple of fixes. Firstly, there’s a fix of International LTE roaming, then there’s the patch for the KRACK WiFi vulnerability.
Apart from that, the Essential Phone update features several bug fixes. It also most likely installs the latest Android security patch. Essential recently pushed out the December security patch for the unlocked variant of the phone.
If you own the LG G3, then the software version for the update is LS990ZVI, and it also patches the KRACK Wi-Fi vulnerability. Along with that, the update will install the November Android security patch on the device.
We recommend you install these updates on their respective devices as soon as you get the notification. Make sure the device has more than 50 percent charge and is connected to a stable Wi-Fi network.