Android 4.1-4.3.1 (Jelly Bean) Features


Android 4.1 (Jelly Bean)

 Release Date : 9 July, 2012

API Level : 16

Features :
  • Based on Linux kernel 3.0.31
  • Smoother user interface:
  • Vsync timing across all drawing and animation done by the Android framework, including application rendering, touch events, screen composition and display refresh
  • Triple buffering in the graphics pipeline
  • Enhanced accessibility
  • Bi-directional text and other language support
  • User-installable keyboard maps
  • Expandable notifications
  • Ability to turn off notifications on an application-specific basis
  • Shortcuts and widgets can automatically be re-arranged or re-sized to allow new items to fit on home screens
  • Bluetooth data transfer for Android Beam
  • Tablets with smaller screens now use an expanded version of the interface layout and home screen used by phones.
  • Improved camera application
  • Multichannel audio
  • USB audio (for external sound DACs)
  • Audio chaining (also known as gapless playback)
  • Ability for other launchers to add widgets from the application drawer without requiring root access


Android 4.1.1 (Jelly Bean)

 Release Date : 23 July, 2012

API Level : 16

Features :
  • Fixed a bug on the Nexus 7 regarding the inability to change screen orientation in any application


 Android 4.1.2 (Jelly Bean)

Release Date : 9 Oct, 2012

API Level : 16

Features :
  • Lock/home screen rotation support for the Nexus 7
  • One-finger gestures to expand/collapse notifications
  • Bug fixes
  • Performance enhancements


Android 4.2 (Jelly Bean)

 Release Date : 13 Nov, 2012

API Level : 17

Features :
  • Based on Linux kernel 3.4.0
  • Lock screen improvements, including widget support and the ability to swipe directly to camera
  • SELinux
  • Always-on VPN
  • Premium SMS confirmation
  • Group MessagingNotification power controls ("Quick Settings")
  • 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
  • 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


Android 4.2.1 (Jelly Bean)

Release Date : 27 Nov, 2012

API Level : 17

Features :
  • 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)


Android 4.2.2 (Jelly Bean)

 Release Date : 11 Feb, 2013

API Level : 17

Features :
  • 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


Android 4.3 (Jelly Bean)

Release Date : 24 July, 2013

API Level : 18

Features :
  • Bluetooth low energy support.
  • Bluetooth Audio/Video Remote Control Profile (AVRCP) 1.3 support
  • OpenGL ES 3.0 support, allowing for improved game graphics
  • Restricted access mode for new user profiles
  • Filesystem write performance improvement by running fstrim command while device is idle
  • Dial pad auto-complete in the Phone application
  • Improvements to Photo Sphere
  • Reworked camera UI, previously introduced on Google Play edition phones
  • 4K resolution support
  • Many security enhancements, performance enhancements, and bug fixes
  • System-level support for geofencing and Wi-Fi scanning APIs
  • Background Wi-Fi location still runs even when Wi-Fi is turned off
  • Developer logging and analyzing enhancements
  • Added support for five more languages
  • Improved digital rights management (DRM) APIs
  • Right-to-left (RTL) languages now supported


Android 4.3.1 (Jelly Bean)

Release Date : 3 Oct, 2013

API Level : 18

Features :
  • Bug fixes
  • Small tweaks for the Nexus 7 LTE.


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