The Motorola G series, such as Moto G, G2 and G3, are expected to receive Android 6.0 Marshmallow update anytime soon.

Motorola has yet to confirm which of its three devices will first receive the Android 6.0 Marshmallow when the new OS becomes available to the public.

According to NeuroGadget, Moto G3 may get updated with Android 6.0 Marshmallow before the end of 2015.

It was previously reported that Google may roll out its new mobile OS to the public this fall. Android Lollipop arrived in mid-October last year, chances are Android M would also be available for the public around the same time this year.

There were also speculations that Google will officially release Android 5.1.1 Lollipop for Moto G series this week, specifically on September 29, 2015. However, as of this writing, there has been no confirmation of any release.

According to NeuroGames, before Moto G, G2 and G3 will get updated to the Android 6.0 Marshmallow, they will firstly get the Android 5.1.1 Lollipop update.

This would mean users of the three devices will be able to try Android 5.1.1 Lollipop for few weeks before their devices will be finally updated to the Android 6.0 Marshmallow.

NeuroGames said Moto G2 device will most likely get the new Android 6.0 Marshmallow early next year, while the Moto G might have it in late February 2016.

A version of Google new mobile operating system is currently available to developers. The Developer Preview 3 is the final incremental update to the Android M preview platform that was released in May 2015.

Update can be downloaded here.

Android 6.0 Marshmallow comes with several new improvements including better battery life and app permission management, Android Pay, fingerprint authentication, support for USB Type-C, and an advanced Google Now.

Google had also said Android Marshmallow will also have improved voice control software. The improvements also include a new tool that let users open Chrome browser tabs directly inside apps.