The latest version of Android has always struggled with low adoption rates, and Marshmallow is no different. According to figures from the Android Developers website, Marshmallow is only on 7.5 per cent of all active Android devices. This despite being available for seven months.
Android Lollipop is second, on 35.6 per cent, while KitKat is third, with 32.5 per cent.
Android KitKat was released back in 2013, so a worrying number of Android devices are running software that's three years old.
Even more worryingly, 2012's Android Jelly Bean is still on 20.1 per cent of all active Android devices.
Fragmentation is a longstanding problem for Android. Because it lets manufacturers make devices with different screen sizes, and to add their own skin to the operating system, the latest version of Android has to roll out in stages for different devices. The only sure way to get the latest update first is to have a Nexus device.
iOS 9, by contrast, is on 77 per cent of all active iOS devices. And that's despite launching only five months ago.
Google will hold its annual I/O conference in a couple of weeks, where it will show off Android N. Hopefully it can come up with a solution to its fragmentation problem.
Source: Android Developers