Jelly Bean 4.3

An even sweeter Jelly Bean

Restricted profiles for tablets

You can now limit access to apps and content at home and work. For parents, this means you can create parental controls and for retailers, you can turn their tablet into a kiosk.

Bluetooth Smart support

Bluetooth Smart minimizes power use while measuring and transmitting data for fitness sensors like Fitbit, Runtastic and other devices, making your phone or tablet more power efficient.

Dial pad autocomplete

Just start touching numbers or letters and the dial pad will automatically suggest numbers or names.

Improved support for Hebrew and Arabic

We’ve added more support for Hebrew and Arabic speakers with new builds for right­ to ­left layouts.

Even more features

For those of you looking to go deeper, here's an exhaustive list of all the updates found in Android 4.3, categorized for quick access to the changes.

Check them out  
Audio  

Virtual surround sound - enjoy movies from Google Play with surround sound on Nexus 7 (2013 edition) and other Nexus devices.

Graphics  

OpenGL ES 3.0 - Android now supports the latest version of the industry standard for high performance graphics.

Wireless Display for Nexus 7 (2013 edition) and Nexus 10 - project from your tablet to a TV.

Input  

Easier text input - an improved algorithm for tap-typing recognition makes text input easier.

Lower latency input for gamepad buttons and joysticks.

Location  

Location detection through Wi-Fi - use Wi-Fi to detect location without turning on Wi-Fi all the time.

Networking  

Bluetooth Smart support (a.k.a. Bluetooth Low-Energy) - devices like Nexus 4 and Nexus 7 (2013 edition) are now Bluetooth Smart Ready.

Bluetooth AVRCP 1.3 support - display song names on a car stereo.

Settings  

Disabled apps tab - check which apps are disabled in Settings > Apps.

System  

Restricted profiles - put your tablet into a mode with limited access to apps and content.

Setup wizard simplification - getting started on Android is easier thanks to the ability to correct previous input, and because of streamlined user agreements.

Faster user switching - switching users from the lock screen is now faster.

Enhanced photo daydream - navigate through interesting albums.