Nextbit has started rolling out Android 7.0 (Nougat) stable update for the Robin smartphone users globally. Aside from Nougat it also includes January 5, 2017 Android security patch with this update.
The update comes with build number 88 and is around 1.5GB in size. As we know the firmware updates are rolled out in stages, so it may take a few days before they reach all the devices out there.
Notification for the update should automatically pop up on your device when it is available for you or, you can check it manually by heading to Settings -> About Device -> Software Update.