Last week, Google released the Developer Preview builds of Android L for the Nexus 5 and the Wi-Fi variant of Nexus 7 (2013). Even though this was a developer preview, it did not stop many impatient Android lovers from installing it on their device.

Now, if you are done with most of your app crashing and random bugs ruining your Android L experience, and are wondering how to go back to Android 4.4 KitKat, follow the instructions below.

One of key features introduced by Google in Android L is Project Volta, which aimed to greatly improve the battery life of Android devices by smartly and efficiently making use of the available resources and keeping unnecessary wakelocks to a minimum.

But how good is Project Volta? According a test conducted by the folks over at Ars Technica on a Nexus 5, users can see a whopping 36% increase in battery life while running L.

Towards the end of last week, Google started rolling out the Android 4.4.4 update for the Nexus and Google Play edition devices. The update took many by surprise since the Internet giant had rolled out the much anticipated Android 4.4.3 update at the beginning of the month.

While the factory images for the Nexus devices are already up for download, Google is rolling out the OTA update in batches, which means that it won’t show up instantly on your device.

Nokia — the part that has not been sold to Microsoft — has released a new launcher for Android devices, dubbed Z Launcher. Like every other launcher recently released on the Play Store, Z launcher aims to make your life simpler by offering app suggestions depending on the time and your usage habits. 

Google has started pushing out the Android 4.4.4 update for the Nexus devices, a couple of weeks after it rolled out the Android 4.4.3 update. The latest update to KitKat, carrying the build number KTU84P, is an emergency bug fix release than a feature rich one.