Nexus devices to receive Android 4.4.3 on May 23
Next Friday, a slew of Nexus devices could be getting a software update. The next version of KitKat, Android 4.4.3, will allegedly be pushed to the Nexus 4, Nexus 5, Nexus 7, and Nexus 10 on May 23. While this update will likely bring minor changes, Google is bound to be cooking something for I/O next month. So we will just have to wait and see.
Source : Talkandroid