We take a look at major manufactures generous enough for the update.
Google
Starting October 5, Google's Nexus 5 , Nexus
Nexus 7 (2013 edition) , Nexus 9 and Nexus Player are getting the update over the air, delivered wirelessly. The Nexus 5X and Nexus 6P will ship with Android Marshmallow are installed. Nexus 4&10 are going to be left out.
Motorola
The lenovo child took it to their blog and unfortunately left MOTO E2015 from the lot.
Moto X Pure Edition (third-generation)
Moto X Style (third-generation)
Moto X Play
Moto G (third-generation)
Moto X (second-generation, Latin America, Europe and Asia editions)
Moto X Pure Edition (2014)
Moto G and Moto G with 4G LTE (second-generation)
DROID Turbo
Moto MAXX
Moto Turbo
Sony
This is from their site:
Xperia Z5
Xperia Z5 Compact
Xperia Z5 Premium
Xperia Z4 Tablet
Xperia Z3+
Xperia Z3
Xperia Z3 Compact
Xperia Z3 Tablet Compact
Xperia Z2
Xperia Z2 Tablet
Xperia M5
Xperia C5 Ultra
Xperia M4 Aqua
Xperia C4
HTC
Thanks to the company's twitter page, we know all the names of the phone bunched for update.
One M8
One M9
One M9+
One E9
One E9+
One ME
One E8
One M8 Eye
Butterfly 3
Desire 826
Desire 820
Desire 816
Samsung
As for now, Samsung hasn't revealed anything but we believe that the S6 edge, edge plus,note5 will definitely get the update. S5 may get too. S4,others maybe left out.
LG
While LG hasn't made a formal announcement, clues on its Korean support site point to the
LG G4 and LG G3 getting the update. There's no mention of whether or not the recently debuted LG V10 will get the update, or the older LG G2 .