A number of new updates have been delivered for users outside the Nexus family and these updates delivered both enhancements and fixed bugs. The KitKat updates seems fine for some users while a majority of users are facing a number of bugs after the Android 4.4.4 KitKat update.
Google first rolled out the Android 4.4.3 KitKat update which tackled a number of bugs assosciated with the Android 4.4.2 KitKat. Users were crying themselves hoarse about a number of bugs which had plagued the Android 4.4.2 KitKat.
Thankfully Google took these issues seriously and pushed a small incremental upgrade to the Android 4.4.2 KitKat in the form of Android 4.4.3 KitKat. The rollout was started on June 4th for Nexus users and the others in the subsequent days. However Nexus 5, Nexus 4 and Nexus 7 users started having problems. Small and incremental updates can bring specific fixes for bugs but also bring problems of their own.
Finally in late June Google rolled out the Android 4.4.4 KitKat update. The update was meant to take care of the umpteenth issues which had sprung up with the Android 4.4.3 KitKatand also included filling up a lacunae in the OpenSSL. The update had fixed most of the bugs which was plaguing the OS but again brought a few problems of its own.
Among the new problems which erupted with the Android 4.4.4 KitKat update includes bad battery life and keyboard lag in Nexus 5, Wi-Fi issues and random reboots in Nexus 7 , Dialer issues in Nexus 4, etc. These issues were present in the Android 4.4.3 KitKat also. The issues is not being faced by Nexus users only and users of other devices which run on the Android 4.4.4 KitKat are also facing issues.
The Android 4.4.4 KitKat issues have still not been resolved and Google Product Forums are overflowing with complaints from irate users who are facing problems after Android 4.4.4 KitKat updates. The latest problems include Wi-Fi issues, GPS problems, random freezing and lock ups, problems with email sync, and more. Somewhat similar issues are also being faced by Moto G users and so are users of Xperia Z1 users. Motto G users are having issues with battery life and also camera issues after the latest update. The camera issue seems to be carried over from the Android 4.4.2 KitKat.
Many of these issues seem to require some major refurbishment and with no Android 4.4.5 KitKat update in sight, it seems that users of the KitKat OS platform will have to endure with these problems for some more time now.
Android L is believed to be perfecting an update for Nexus users which will take care of a number of issues including battery life for Nexus 5. It is rumored that the update will be coming alongside Nexus 8 and is believed to be with developers as early beta form.