Android 5.1.1 Lollipop's official over-the-air release is confirmed rolling out to first and second generation of Moto x smartphones. The final Lollipop update will bring changes, improvements and bug fixes.

As reportedly last month, Motorola has already enlisted 17 devices which will get the 5.1.1 software version of Android Lollipop and two of them are the 2014 Moto X, 2013 Moto X and Moto X Pro. Changes and add-ons expected to go along with the update are improvements with the Material Design, supports for Android Pay, USB Type-C and fingerprint sensor. It will also add device switch, device sync and a few bug fixes.

Last August 10, the Lenovo-owned tech firm already released security patches to counter Stagefright threat.

Here's a quick rundown to improvements in icons, home launcher, Material Design, and power management.

• Changing icon size in home launcher settings is enabled.
• Pressing up and down volume bars will bring the graphic up. Tapping the button on the right expands the volume menu.
• Tapping the icon on the left side twice silences the phone.
• New icons for the settings menu.
• More fluid animations and more themes Material Design.
• Enabled switching content to other devices.
• Copying content to other devices.
• Stagefright fix

Aside from the 2014 and 2013 Moto X smartphones, Android 5.1.1 Lollipop will also be update to 1st and 2nd  generation of Moto E, 2nd generation Moto E with 4G LTE, Moto Maxx/Turbo, DROID Turbo, DROID Ultra, DROID Maxx, DROID Mini, and Moto G 2nd Gen (2014) and 1st Gen (2013). Meanwhile, soon to be released Moto X Style and Moto X Play are expected to run on Android 5.1.1 Lollipop out of the box.

To check the update, just head over to Settings > About phone > System update > Check for updates.

Moto G 2nd Gen and Moto G 1st Gen units under major mobile carriers AT&T, Verizon Wireless, T-Mobile, Sprint and US Cellular currently run the Android 5.0.2 update.