Google says Marshmallow is now powering over 13.3 percent of Android devices

This month, Marshmallow is 13.3 percent of devices and Lollipop has continued its dominance by being on 35.1 percent of devices, which is a decrease from 35.4 percent last month. KitKat, which was released in October of 2013, fell slightly by 0.05 percent to run on 30.1 percent of Android devices.

Google recently announced Android 7.0 Nougat, previously known as Android N.

There is no confirmed release date but Google promises it will be available sometime later this summer.

[source]Android[/source]