It's Android OS version stats time again and it's an end of an era  the era of Gingerbread dominance. Jelly Bean (Android 4.1 and 4.2) finally did what ICS (4.0.x) never managed  get more market share than Gingerbread. Gingerbread in its current form (API level 10) debuted in February 2011, while the initial version, API level 9, came out in December 2010, but all GB phones were updated.
GSM Arena , Android in June 2013: Jelly Bean overtakes Gingerbread, Android in June 2013: Jelly Bean overtakes Gingerbread