Sony Xperia Z1 phones can now get the Android 6.0 Marshmallow upgrade through a custom ROM developed by XDA. The upgrade comes with major features and improvements.
LG G2 phones will make a big comeback in the Android 6.0 Marshmallow scene as a Verizon unit was seen in test on a benchmark site. With G2's whopping score, the device is reported now possible for upgrade.
Samsung Galaxy E7 phones are now bound for Androdi 6.0.1 Marshmallow update by March or April 2016 as the Android 5.1.1 Lollipop update has been finally completed with Verizon. More details here.