Majority of the Android-powered devices are still waiting to jump over to the Android 4.4.2 KitKat version of the mobile operating system, Google is apparently testing 4.4.3 already, under the build number KTU72B.
In November, Google pushed out its last Android 4.4 KitKat update in the form of Android 4.4.2 KitKat. The update, which improved the Nexus 5 camera and delivered fixes to other Nexus users, has since spread to other devices including the HTC One, Samsung Galaxy S4, and the Samsung Galaxy Note 3.
This particular bit of information hails from renowned developer LlabTooFeR. He reveals that it will fix a camera bug inside HTC devices.
There are no details yet on eventual extra enhancements and fixes that the Android 4.4.3 KitKat update will bring to devices in general.