Google has just released its monthly report on the distribution of Android versions across active devices, indicating that KitKat has surpassed the 30 percent mark a year after its launch. That's up from 24.5 percent last month, which is notable as we're at the point where Lollipop devices are hitting the wild.
As for previous versions, Jelly Bean 4.1 to 4.3 totals up to a whopping 50.9 percent, but is down from 53.8 percent a month ago. Ice Cream Sandwich is now just 8.5 percent, down from 9.6 percent, and Gingerbread has crossed into the single digits, now at just 9.8 percent.
This continues the steady march towards getting folks on "modern" versions — aka Jelly Bean and up — of Android, leaving Gingerbread behind. Next month is when we'll likely see Lollipop amass enough active users to have it be on this chart, and we'll get a good idea of widespread adoption come January of next year.
Source: Android Developers