Android 6.0 Marshmallow rollout for Samsung Galaxy Note 5, S6, S6 Edge, LG G Stylo, G4, V10; Early look at Android N

Mobile carriers and smartphone vendors have been preparing Android Marshmallow 6 updates to add new features to many older handsets, even as Android N is set for a release this fall.

Many handsets have been undergoing an update from Android Lollipop, but not all will get the latest operating system, based on mobile carriers and the hardware of the gadgets. According to Phone Arena, Samsung Galaxy Note 5 started receiving Marshmallow 6.0.1 updates on March 14 from AT&T, a week after Verizon took the same move on the Galaxy Note 5.

Google's latest operating system started appearing on new Google Nexus smartphones in October 2015. It took sometime before the update began rolling out on Samsung smartphones since the maker made many changes to the core Marshmallow code, particularly in a TouchWiz interface.

Similarly, Sprint and T-Mobile have been rolling out updates for Galaxy S6 smartphones to their customers. In the near future, Samsung will release similar updates for Galaxy S6 Edge users.

In a statement on its official website, Samsung said, "For upgradable models, Samsung will make separate announcements on details of the OS updates schedule for each market according to market situation and carriers' requirements. With the Android 6.0 Marshmallow update, Samsung provides the enhanced edge screen and new edge screen features, which are the unique user interface of the beautifully curved edge screen to the next level, making it faster and more convenient than ever."

Meanwhile, LG started releasing Marshmallow updates for most smartphone models in late 2015, including LG G Stylo smartphones, while LG V10 and G4 are still rolling out, depending on different carriers.

Earlier this month, Google Inc. gave developers an early look at the next version of its Android mobile operating system - Android N. The upcoming OS will bring several updates like support for a split-screen or multi-window mode, bundled message notification, faster responses to messages, more Java 8 language features, and better battery efficiency.

The Developer Preview for the OS includes a software development kit for users to test apps on Google Nexus smartphones and the company's Android emulator. Android N initial preview release is meant for developers only, and not for customer use. The move allows Google to continue pushing out updates regularly during the Developer Preview program.

When the product is near completion, Google will allow customers to put the new OS through its paces. The preview comes five months after Google started rolling out devices based on Android Marshmallow.

Watch the sneak peek below for more information on Android N.