Rumors have been floating around on the Internet since quite a few weeks that Google will soon be releasing a minor Android update to fix all the bugs present in Android 4.4.2 KitKat. Server logs of many websites clearly indicate that Android 4.4.3 is very much real and that Google is testing it before pushing it out to Nexus users.
Today, thanks to the folks of Android Police, we now know all the fixes and changes that this update will pack. This includes multiple Bluetooth fixes, a fix for the mm-qcaemra-daemon draining battery bug, improved camera focus in regular and HD modes, random reboot fixes, missed call LED fix and more.
If you have not already guessed it, the update is primarily meant to squash the plethora of bugs that are present in the current KitKat build. The fixes to the camera autofocus 5 gives me hope that Google might be able to improve the ridiculously slow focus time on the Nexus 5 to a certain extent.
At the moment, it is not clear as to when Google plans on pushing out the update to the Nexus devices. However, looking at the increasing frequency of the build number in server logs, expect the update to be out sometime soon.