Verizon has started rolling out a new update to Motorola Moto X (2nd gen) devices on its network. As per the release notes, the update brings along the latest Android security patch.
Aside from the Android security patch, nothing else seems to be included in the update. As the roll-out has just begun, it may take some time for the update to hit your device. However, if you're feeling impatient, you can also manually check for the update by heading to the Settings menu on your device.