With several smartphones having already got Google's new firmware, Android 6.0 Marshmallow update, owners of Samsung's high-end devices like the Galaxy S6, Galaxy S5, Note 5, Note 4 and others must be curious to know when their handsets will receive the update.

It is natural for Samsung device owners to expect the firmware OTA (over-the-air), as LG G4, Moto X Style (3rd Gen) and Moto X (2nd Gen) have already received it a few weeks after it was rolled out to Google Nexus 5, Nexus 6, Nexus 7 (2013), Nexus 9, Nexus Player and Android One. Moto X Pure Edition (3rd Gen), which is known as the Moto X Play to the rest of the world except in the United States, is said to be getting the software in a matter of weeks.

Unfortunately, Samsung is yet to announce Android 6.0 Marshmallow update schedule for its devices though it is confirmed that the firmware will be rolled out to a dozen of them. So all reports of its release can be considered as pure speculations at the moment.

If we are to go by past trend, Samsung is expected to roll out the firmware update to some of its flagship devices before the end of this year, i.e. by December. However, it wouldn't come as a surprise if the firmware update is released this month. There is no reason why Samsung can't make the update early as the shift to Marshmallow is not as big as from KitKat to Lollipop.

Interestingly, a report by Android Geeks has claimed that Samsung devices like Samsung Galaxy Note 5, Galaxy S6, Galaxy S5 and Galaxy Note 4 are expected to get the firmware at around that the same date and that the Galaxy S6 should be the first handset to receive. 

It is also reported that beta version of Android 6.0 Marshmallow build for the Galaxy S6 is ready. If it is true, Samsung could start rolling it out to its devices, perhaps starting with the Galaxy S6 any time.

It may be noted that once ready, Samsung will roll out the firmware in phases to its devices like Galaxy Note 5, Galaxy Note 4, Galaxy Note Edge, Galaxy S5, Galaxy S6, Galaxy S6 edge, Galaxy S6 edge+, Galaxy Tab S2, Galaxy Alpha, Galaxy A7 and Galaxy A8.