Samsung Just started rolling the marshmallow outside korea for the Galaxy S5,Variant G900M according to sammobile....
Galaxy S5 to 6.0.1 (Marshmallow) brings a multitude of bug fixes as well as performance improvements and security enhancements. Android Marshmallow brings battery-saving Doze mode, Google Now on Tap, 200 new emojis, app permissions, app links, direct sharing options, Chrome custom tabs, and more to the smartphone.
[IMG="http://www.sammobile.com/wp-content/uploads/2016/03/Samsung-Galaxy-S5-SM-G900M-Android-6.0.1-Marshmallow-Update.jpg"]http://www.sammobile.com/wp-content/uploads/2016/03/Samsung-Galaxy-S5-SM-G900M-Android-6.0.1-Marshmallow-Update.jpg[/IMG]