Sony has started rolling out Android Marshmallow 6.0 update for a couple of devices. First up, the update is coming to the Japanese variants of the entire Xperia Z5 lineup which includes the Xperia Z5, Z5 Compact and the Z5 Premium. The update will soon follow the global variants in the coming weeks.
#Android 6.0, Marshmallow rolling for Xperia Z5 series, Z4 Tablet & Z3+ - rollouts are phased, check locally & watch for the notification— Sony Xperia News (@SonyMobileNews) March 7, 2016
NTT DoCoMo users in Japan who have the smartphones from the Xperia Z5 line up, are receiving the Marshmallow update that has a firmware build 32.1.F.0.43. The latest Android Marshmallow 6.0 update comes with a bunch of new features like Doze, Google Now on Tap, new camera interface and more. Sony has not included STAMINA mode in this update, although it is expected to add the feature in a later firmware update.
Along with the Xperia Z5 series, Sony is also rolling out the Android Marshmallow 6.0 update to the Xperia Z3 Plus and Z4 tablet. The update is being released for both Wi-Fi (SGP712) and LTE (SGP771) variants of the Xperia Z4 Tablet and the single-SIM Xperia Z3+ (E6553)/ The update should be released for the Xperia Z3+ dual soon.