Google is doing some interesting things with Nougat, and one of those will be regular maintenance releases. By pushing out maintenance releases every so often, this allows Nougat to see “continued refinement and polish.” Google didn’t offer any details on how many maintenance releases there would be, but thanks to new information from Evan Blass, we’re going to be seeing a total of three quarterly maintenance releases.
These maintenance updates will obviously change the Android version. Blass says these will be Android 7.1, version 7.1.1 and 7.1.2.
The next three quarterly maintenance releases of Android Nougat will be Android 7.1 / 7.1.1 / 7.1.2
— Evan Blass (@evleaks) August 28, 2016
There’s still no information as to when we’ll see the first quarterly release, but many are hoping to see it in September, around the same time Marlin and Sailfish are expected to drop; however, if Google really is going by a quarterly schedule, the fourth quarter for the year starts October 1, so we may not see version 7.1 until sometime in October, or maybe even later in the quarter.
source: Evan Blass (Twitter)