Andriod 4.0 Ice Cream Sandwich was the first one to introduce an app called People which lets you store the usual names, phone number and addresses and lets you also assign dates such as birthdays and anniversaries.
When people updated their Andriod 4.0 to Andriod 4.2, a strange thing happened; a whole month of December went missing. In fact, the date picker skipped the month entirely, going straight from November to January.
The bug was first noticed by Rohit Naik, who posted a screenshot of the offending app to the Android message boards on Google Code.
Fortunately, Jelly Bean hadn’t taken away the cheer of Christmas entirely. It was only the People app which was affected by the bug. The earlier iteration of Jelly Bean, Android 4.1, wasn’t affected, either.