When will your Xiaomi smartphone get Android M?
Android MarshmallowAndroid via Twitter

In October, Motorola announced the list of devices eligible for Android Marshmallow. But Moto E (2nd Gen), despite being a 2015 series phone, was left out of the list, inviting criticism from fans and tech pundits alike.

Now, Motorola has formally included the Moto E (2015) in its software upgrade page. But here's the catch. The company has agreed to release the Android Marshmallow only to the 4G phone variant and that too in select regions.

Retail models of Moto E (2nd Gen) 4G LTE sold in Canada, Latin America, Europe and Asia (excluding China) are confirmed to get the Google's new mobile OS.

We checked out the India specific region page of Motorola software upgrade support website [HERE], but there is still no mention of releasing the update to Moto E (2nd Gen). We believe the company is yet to revise its help page so watch this space for more updates.

For the uninitiated, Google's new Android Marshmallow OS comes with an intuitive Doze power-saving feature. If the device is in sleep mode, it will automatically put apps to sleep to increase the device's standby battery life. It can extend battery life by at least 30% depending on the device's internal hardware.

Also read: Google Android 6.0 Marshmallow: 7 key features you need to know

Other noteworthy features include native support for fingerprint sensor input, a leaner and faster Chrome browser, more intuitive Now on Tap feature, new security-feature-verified boot system, support for more international dialects, new contextual assistance feature, Google photos and auto back-up from where all apps user data (less than 25MB) will automatically be stored in Google Drive.