According to a report from Napidroid, Samsung Galaxy Note 4 has received an upgrade to Android 6.0 Marshmallow in Hungary. That is strange, since some of the company's newest phones haven't received the update yet.
Some previous reports had suggested the date February 2016 as the month Galaxy Note 4 will receive the update.
Update includes a new Air Command menu (currently used on Note 5 and S6 Edge +). Additionally, new software brings new icons, faster UI and some smoother animations.