According to Bloomberg, Google is keeping track of how fast vendors update their phones to the latest Android version. These stats are private right now, but the search giant is reportedly considering making them public as a way to pressure laggards into hurrying up. So, with Android 7.0 N looming we have to ask - does your phone have 6.0 Marshmallow? All recent flagships launched with 6.0 (some heavily customized, but still), some mid-rangers too. Others were swiftly updated from Lollipop (usually 2015 flagships). And then there are the commoners, who trudge along with 5.0...
Source: http://www.gsmarena.com/weekly_poll_are_you_running_android_60_marshmallow-news-18454.php