New Android 4.4.3 KitKat (build KTU72B) update allegedly under testing
While most Android devices are still waiting on the update to Android 4.4.2 KitKat, Google is apparently testing 4.4.3 already, under the build number KTU72B. This information comes courtesy of renowned developer LlabTooFeR, but there is no further info on what new features the update is likely to bring.
One of the bug fixes gets mentioned, though - LlabTooFeR writes that "probably it will fix known camera bug." Said issue could very well refer to the problem in Nexus 5 handset. Users observed a pretty significant increase in CPU usage when the camera application is operational, which puts unwarranted stress on the system, and its battery endurance. Google quickly promised a fix for the Nexus 5 camera bug, allegedly coming with the next Android update, so that could be it.
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. Perhaps we will know as soon as the next few weeks, as we doubt Google will wait for the I/O conference in June to release a fix for the camera issue in Nexus 5.
source: @LlabTooFeR (Twitter)