Google has published its latest breakdown of platform usage, showing the proportion of active devices running each version of the Android OS. The data were collected during a seven-day period ending on January 4, and they show sizeable gains for Lollipop, but very little movement on the Marshmallow front.

Android 6.0 Marshmallow was formally announced on September 29, and its rollout began a week later on October 5. However, three months later, it's only made its way to 0.7% of devices - an increase of just 0.2% compared with last month. Meanwhile, the newest Android 6.0.1 builds have already begun rolling out, albeit to just a tiny handful of devices.

Version Codename API Last month This month Change 2.2 Froyo 8 0.2% 0.2% / 2.3.3 - 2.3.7 Gingerbread 10 3.4% 3.0% -0.4% 4.0.3 - 4.0.4 Ice Cream Sandwich 15 2.9% 2.7% -0.2% 4.1.x Jelly Bean 16 10.0% 9.0% -1.0% 4.2.x 17 13.0% 12.2% -0.8% 4.3 18 3.9% 3.5% -0.4% 4.4 KitKat 19 36.6% 36.1% -0.5% 5.0 Lollipop 21 16.3% 16.9% +0.6% 5.1 22 13.2% 15.7% +2.5% 6.0 Marshmallow 23 0.5% 0.7% +0.2%

Lollipop saw the biggest gains over the last month, more than a year after Android 5.0 was first released. The number of active devices running version 5.0 increased by 0.6% month-on-month, while Android 5.1 - which was released eleventh months ago - saw a much larger increase of 2.5%, giving a combined total for Lollipop of 32.6%.

But despite a modest decrease of 0.5% since December, version 4.4 KitKat still has the largest piece of the pie; now over two years old, it's installed on 36.1% of active Android devices.

Source: Android Developers