Samsung officially started rolling out the Android Nougat update for the Galaxy S7 and the Galaxy S7 edge a couple of weeks back. The update has gradually been released in several markets across the globe. It's expected that Samsung will be able to cover all regions by the end of Q1, 2017. However, that might not be the case, as far as the international version of the flagship is concerned.
XDA senior member liquidguru had an online chat with Samsung Support about when he could expect the Nougat update on his international Galaxy S7 edge that he purchased in Singapore. The support rep told him that Nougat will be released in that region at some point between April and June 2017. This may very well be the case for the international Galaxy S7 as well.
It is pertinent to mention here that Samsung support reps aren't always right about the timeframes that they give out so the update may arrive sooner than this or it may possibly be released even later than the timeframe provided.
