Ive checked online and according to others and the Samsung firmware website, Nougat updates were recently rolled out, but it would update by country. Wait atleast a month or less and keep checking the Software Update tab in the Settings.
What phone do you have sir? Samsung and other manufacturers are crappy with their software updates - If a new android version comes up, it takes months before the manufacturer approves it on certain devices, or they just never update old phones.
