Since the beginning of Android, Google has gone with a fairly unorthodox numbering scheme for the new versions of the system. Major version number changes have been saved for big changes to the UI of the system and for the more nebulous idea of a significant change to the OS. But, it appears that Google is adopting a more traditional and predictable number scheme with the Android 7.0 Nougat maintenance releases.
According to leaker extraordinaire Evan Blass, Google has decided to use the 7.1.x numbering for the quarterly maintenance release updates that have been confirmed to be on the way. Unfortunately, if Blass is right, even these releases will use a strange numbering scheme.
