Nextbit started pushing out the Nougat update for it's Robin device. Back in November company started testing it's Android Nougat update through a closed beta program. Today after few months, the stable finale build is rolling out to each unit.
The build number is Robin_Nougat_88 and is based on Android Nougat v7.0. It's an OTA update and also bring security patch for the month of January. You'll get all the goodies of Nougat that includes multi-window, bundled notifications, customizable quick settings, and more to the phone.
Since it's an OTA update will roll out gradually so be patient. Meanwhile you can head over to the setting's menu of your device and check manually whether the update is available for your device or not.