When it comes to the upgrade of Android, it comes every year. However, there are some manufacturers of Android smartphones that get it later each year, and Sony is sadly a company that often receives its Android upgrade the latest. After all, its competitors of HTC, LG, Samsung, and Motorola have Android 6.0 (also known as Marshmallow or Android M), so now all Sony users (who are somewhat plentiful in the United States) want to know when is Android N coming. This is what is known about Android M Version 6.0 Marshmallow and Android Nougat Release Date for Sony Xperia X, XA, XA Ultra, X Performance, Z5, Z4, Z3, and Z2 on T-Mobile, Sprint, AT&T, US Cellular, and Verizon.
According to Tech Radar, there was a big surprise with Google and Sony as they announced that the Sony Xperia Z3 would receive the developer edition of Nougat, but the device will apparently not be getting the full Nougat upgrade.
The Z3 series is pretty popular, so it would not be surprising if Nougat comes there. Sort of like how the Z1 series won't be getting Marshmallow, it will be unlikely that the Z2 will get Nougat. Of course, it seems like Sony is always the last to get the latest version of Android, so there is no release date for Nougat.
There are reports of the Xperia Z3+, the Xperia Z4 Tablet, as well as the entire Z5 series (Xperia Z5, Xperia Z5 Compact, and the Xperia Z5 Premium). Also, the newer devices like the Xperia X, Xperia XA, the Xperia XA Ultra, and the Xperia X Performance will also be receiving the upgrade.
Sadly, there is no timetable announced. This year, Google has been doing things a little bit differently, as their new Nexus series is not happening. There will be new Google phones with the Pixel and the Pixel XL, but they won't be the first to be receiving Android 7.0. Instead, most of the newer Google Nexus phones already have it, and that includes the ones that were announced as of last year.
In fact, word is really iffy at best whether or not these aforementioned Sony devices have received Marshmallow. If you are a Sony user of a newer device in the United States, your best bet is to see if you can't get the OTA (Over The Air) download of Android Marshmallow now. Just go into the "Settings" and "System Update" to see if the upgrade is available. The upgrade may not be available depending on your carrier like T-Mobile, Sprint, US Cellular, AT&T, and Verizon, because there is often an inconsistency when it comes to carriers.