So near the end of last year everyone thought the s4 would not get the marshmellow update from samsung. Well in the last few days lots of tech and news sites have all been saying the same thing. Marshmellow update due Q2 2016 along with the s5. Let's hope it's true or its cm13 for me. But if it does get it, it's defiantly going to be the last update and android N will only be accessible via custom ROM when it's released.