The latest version of Google's mobile operating system is now part of the double-digit club. According to the Android Developer Dashboard, adoption of Android 6.0 Marshmallow now sits at 10.1 percent.

Marshmallow arrived in October 2015 but made very little progress early on. Five months in, the mobile OS had found its way to just 2.3 percent of Android devices in the wild. Adoption climbed to 4.6 percent in April before reaching 7.5 percent last month.

Android 5.x Lollipop remains the most popular version of Google's mobile OS with a market share of 35.4 percent, down just 0.2 percent from a month earlier. KitKat comes in at a close second with an install base of 31.6 percent, nearly a full percentage point drop compared to May.

Android 4.x Jelly Bean is the only other version with a significant distribution at 18.9 percent, a 1.2 percent drop month-over-month. Froyo, Gingerbread and Ice Cream Sandwich combined account for just four percent of the pie, down from 4.3 percent a month ago.

In summary, Marshmallow adoption increased by 2.6 percent while the install base of Android 2.x through Android 5.x fell by 2.6 percent. Taken at face value, the data suggests that users with dated smartphones are finally upgrading to new handsets that ship with Google's latest operating system already installed.

In reality, it's more of a coincidence really as other variables aren't taken into consideration - like those that have upgraded to the developer preview of Android N - but it once again highlights Google's struggle with fragmentation.

Speaking of Android N, Google surprised everyone back in March by launching the developer preview roughly three months ahead of schedule. This should allow the search giant to get the consumer version out this summer, a move it hopes will ultimately ramp up adoption.

Have you upgraded to Android 6.0 yet (or perhaps Android N)? If not, what's holding you back? Feel free to let us know in the comments section below.