Sprint wireless begins to push a software update for Nexus 6P users in USA. It’s the android nougat 7.1.1 based update which come along with January month security patch. The build version of this update is N4F261. It will update your security patch level as January 5. Further this firmware also includes stability/performance enhancements and bug fixes.
The Nougat 7.1.1 update will hit Sprint Nexus 6P devices through OTA. If you have Nexus 6P device that working under Sprint network then you’re eligible for this update. The users can check for the manual update from Settings menu.