Now that the Samsung Galaxy S7 has been released to the public, it has been doing very well with its sales and having Android 6.0 (also known as Android M or Marshmallow) out of the box has helped. But what about older Samsung phones? Here is the latest news on Android M Version 6.0 Marshmallow Release Date for Samsung Galaxy S6, S6 Edge, S6 Edge +, Note 5, Note 4, and S5 on AT&T, Verizon, T-Mobile, US Cellular, and Sprint.
We'll start with last year's flagship with the Galaxy S6 and S6 Edge. Fortunately, that is covered, at least if you are with T-Mobile, receiving the upgrade on April 11. There is a report from the International Business Times saying that the upgrade will be coming to AT&T soon, but there is not a specific release date so far.
The Galaxy S6 Edge Plus does have its upgrade, at least if you are from Verizon, receiving it on April 11 as well. As for the Galaxy Note 5, there are reports from Android Pit saying that the rollout began on March 24 for Sprint customers. Verizon and AT&T customers started to receive their upgrade at the beginning of March. As far as the Galaxy Note 4 and the Note Edge are concerned, they are confirmed to receive the upgrade, but it doesn't look like a date has been set as yet.
This is the same for the flagship of two years ago with the Samsung Galaxy S5. It is set to receive it, as is the Galaxy S5 Neo and the Galaxy Alpha. Any flagship phone or phablet lower than that, such as the Galaxy S4 and S3, will not be receiving any upgrade.
For those that are users of the Samsung A5, A7, and Galaxy Tab S2 9.7, there is good news. Neurogadget reports that the Samsung A5 and A7 will be receiving the Marshmallow upgrade "soon", but there isn't really an exact date on that as yet. As for the Galaxy Tab S2 9.7, the update was released on the T815 model of the tablet, and this rollout started in Germany. Some say it is possible that even devices such as the A3 and the Galaxy Tab S2 8.0 will be receiving the update.
The bottom line is if you have any other more recent Samsung devices, you should be getting your Marshmallow update soon, so check your "Settings" as well as "System Update" to see if it is available as of now.
If the upgrade is available, then count yourself lucky, but the delay might have something to do with the carrier. Most of the newer Samsung flagship phones have received the upgrade, but only on certain carriers, as some receive it earlier than others. There never has been a real fixed pattern.