14-02-2017 12:53 PM
It should say in the description on the update what it is.
The size of the update does relate to a major update so I presume Marshmallow as the S4 wil not be getting Nougat.
15-02-2017 10:24 AM - edited 15-02-2017 10:25 AM
Why wouldn't it be?
You will either not notice much other than security updates and stability fixes, or you might get new toys to play with.
It's not like the bad old days where updating your phone wiped it. Just update! 🙂