Android 4.2 Jelly Bean

Google was expected to announce Jelly Bean 4.2 at an event in New York City on 29 October 2012, but the event was cancelled due to Hurricane Sandy.^[100] Instead of rescheduling the live event, Google announced the new version with a press release, under the slogan "A new flavor of Jelly Bean". Jelly Bean 4.2 was based on Linux kernel 3.4.0, and debuted on Google's Nexus 4 and Nexus 10, which were released on 13 November 2012.

Features  Android 4.2 Jelly Bean :

Lock screen improvements, including widget support and the ability to swipe directly to camera[104] Notification power controls ("Quick Settings") "Daydream" screensavers, showing information when idle or docked Multiple user accounts (tablets only) Support for wireless display (Miracast) Accessibility improvements: triple-tap to magnify the entire screen, pan and zoom with two fingers. Speech output and Gesture Mode navigation for blind users New clock application with built-in world clock, stop watch and timer All devices now use the same interface layout, previously adapted from phones on 4.1 for smaller tablets (with centered software buttons, the system bar at the top of the screen, and a home screen with a dock and centered application menu), regardless of screen size Increased number of extended notifications and Actionable Notifications for more applications, allowing users to respond to certain notifications within the notification bar and without launching the application directly SELinux Always-on VPN Premium SMS confirmation[105] Group Messaging
4.2.1		27 November 2012	Fixed a bug in the People application where December was not displayed on the date selector when adding an event to a contact Added Bluetooth gamepads and joysticks as supported HID (Human interface device)
4.2.2		11 February 2013	Fixed Bluetooth audio streaming bugs Long-pressing the Wi-Fi and Bluetooth icons in Quick Settings now toggles the on/off state New download notifications, which now shows the percentage and estimated time remaining for active application downloads New sounds for wireless charging and low battery New Gallery application animation allows faster loading USB debug whitelist Bug fixes and performance enhancements