While some device owners are going to begin to look towards the software update for Android N, there are some devices which have yet to receive their update to Android 6.0 Marshmallow. When it comes to devices from Samsung, the company has already pushed updates for Marshmallow out to devices like the Galaxy S6 and Galaxy Note 5, as well as nearly every other flagship device they have that was confirmed to be getting the update. Samsung's Galaxy A series of devices is not among those for the most part, but it appears that Samsung is starting to send updates in that direction as it was recently discovered that the Android 6.0.1 Marshmallow update has begun to hit the Galaxy A9.
This would be the first Galaxy A series device to receive Marshmallow so far, and just like with any other Marshmallow device, the usual elements should be expected which includes things like Google Now on Tap, more granular permissions control, and power saving features like App Standby and of course, Doze Mode. The update is reported to be going to the SM-A9000 model of the device, which at this point is the only model available still, and although some users appear to be receiving it that does not mean that all devices will have it immediately, and it may take days before the update hits all users, if not longer.
The Galaxy A9 was launched in China and is an unlocked model, so it's possible that some consumers who have been able to get their hands on it outside of the country could be slated to get the update as well. If you have a Galaxy A9 and you haven't seen the update come through to your device, you can always check to see if it's available manually by navigating to the settings menu, scrolling to About Phone, and tapping on software updates to see if it shows up. Other features for users to expect will be the Always On Display. If checking for the update manually does not work, then simply waiting for the over-the-air update would be the only thing to do.