Motorola launched the new Moto G (2nd Gen) in India earlier this month running on the latest Android 4.4.4 (KitKat). Motorola has pushed out a minor software update for the smartphone in several countries, including India. According to the official changelog, the update replaces the default launcher with the Google Now launcher and also includes some bug fixes. According to XDA users, the update also changes the Powered by Android Bootimage with a new design and the has some improvements in the auto brightness.
Google Now Launcher is now the default launcher in all the Android One devices, so other Motorola smartphones could also get the update to make the Google Now Launcher as the default launcher. Last month Google opened up the Google Now Launcher for all the devices running Android 4.1 or higher.
The new v21.11.23 update for the new Motorola Moto G is 120.8MB and is available over-the-air. You can go to Settings -> About -> System updates -> Check now to check for the updates manually.