Android 7.1.1 Developer Preview 2 Is Now Available for Older Nexus Devices. Google has released Android 7.1.1 Developer Preview 2 For Nexus 5X, Nexus 6P, Nexus 9 and Pixel C. Android 7.1.1 Developer Preview 2 factory images are now live for Nexus 6P, Nexus 5X, Pixel C and Nexus 9. You can flash it manually but if you don’t want to flash manually then you can wait for few days or week for OTA Software update. (About >> Software Update). You can download OTA Zip file from Below Link & you can flash it manually.
The current 7.1.1 preview arrives as build NPF26F for the Nexus 6P, Nexus 5X, and Nexus 9 (WiFi and LTE), and NPF26H for the Pixel C. You can download Android 7.1.1 Developer Preview 2 from Android Developer Website Here.
Google Has released final Android 7.1.1 Developer Preview 2 with more features, adds optimizations and bug fixes. In includes near-final system behaviors and UI, along with the latest bug fixes and optimizations across the system and Google apps.
Already Google said that, Android 7.1.1 Nougat Stable Update will be available in December 2016 for supported devices that includes, Nexus 6, Nexus 5X, Nexus 6P, Nexus Player, Nexus 9, Pixel C, General Mobile 4G (Android One), as well as Pixel and Pixel XL.