beginning of June, we saw that KitKat jumped an impressive 5.1% from 8.5% in May to 13.6%, and at the same time, all other major versions dropped. This month, KitKat is once again up, and now makes up 17.9% of the ecosystem. That's solid movement for an Android update. KitKat is up 12.6% since April, and shows no signs of slowing down, especially with Android L not coming for at least another two or three months. In terms of the other Android versions, everything is on the decline, as we said. Jelly Bean (Android 4.1-4.3) is now down to 55.5% from its peak of 62% back in March. Ice Cream Sandwich (Android 4.0) slipped a bit to 11.4%, and Gingerbread (Android 2.3) is down to 13.5%.At the
With most major manufacturers promising Android L updates to current flagships within three months of its release, we may not see KitKat rise to the levels of Jelly Bean or Gingerbread, which both peaked at over 60% of the ecosystem. But, it should still be interesting to see how high KitKat can get.
source: Android Developers