Google's Android 4.4.3 will reportedly be a major bug fixer instead of an operating system update with more features. Nonetheless, despite reports about its bug fixing nature, the mobile operating system update has not surfaced officially yet. According to recent information, Google may release the update sometime around May up to June. 

According to a report by Android Geeks, Google may soon be ready to release the Android 4.4.3 update. The first in line will be Nexus devices like the Nexus 4, Nexus 7, Nexus 7 2, Nexus 5 and the Nexus 10. Likewise, sightings of Google Play Edition devices like the Sony Xperia Z Ultra suggest that Google plans on extending the update initially to GPE units as well. 

The initial details regarding the Android 4.4.2 update surfaced some few weeks ago. A Nexus 5 running on the software was spotted. Additionally, Sprint updated its support page previously for Nexus 5 indicating that the device will soon receive a software update. Sprint took down the announcement saying that it has to work on a few tweaks more including addressing a number of problems.

As mentioned, initially the Android 4.4.3 was expected to hit Nexus 5 and other Nexus devices first. Nonetheless, a Sony Xperia Z Ultra Google Play Edition featuring Android 4.4.3 was spotted. The device was spotted running on software with a build number KTU72 in a Bluetooth SIG log. Google has not made official announcements yet but the update sightings have been increasing by the day. 

Another sighting of the software was under the "What's New" section of Google Edu Device Setup app. According to the section in Google Play store, the latest version of the app comes with "Support for Android 4.4.3 and non-Nexus Tablets." 

Google will be holdings its I/O Developers Conference this June. If the software update will not materialize in May then it should come out during the conference.