Samsung drops support for Galaxy S6/S6 edge, phones will no longer receive security updates15
The Galaxy S6 family made its debut on the market three years ago, which means that going forward these phones will not be receiving any other security updates. Samsung recently removed the Galaxy S6 and S6 edge from the list of devices eligible for these security updates because they are 3 years old.
The good news is two other Galaxy S6 series phones remain on the list for a few more months and will continue to receive monthly security updates: Galaxy S6 edge+ and Galaxy S6 Active.
Keep in mind though that even these two Galaxy S6 family smartphones will eventually be removed from the list by the end of the year. If you want to continue to remain protected, you'll have to switch to a newer device at some point in 2018.