Almost nobody is using Google’s latest and most ambitious update to its Android operating system. Based on the company’s latest numbers charted for us by BI Intelligence, less than 0.1% of all Android devices are running the latest version, called Lollipop. It doesn’t even appear on the chart, because we don’t show distributions with less than 0.1% adoption.
Most Android users are still on Android Jelly Bean (46% of devices), followed by KitKat (39.1%), the most recent version of Android that came out before Lollipop. Android suffers from a ton of “fragmentation” — that is, many different versions of the software out at the same time — because Google gives third parties like hardware makers and carriers lots of leeway on what they can do with the platform. It’s difficult to roll out new updates since each new software edition must pass through so many different channels before it reaches the end user. Unfortunately, this makes it hard for developers trying to build Android apps — which version do they build for?