[..] while their devices still work perfectly, getting the latest software and security updates can often be a problem.
To provide the best mobile experience for its users, Samsung has committed to providing three generations of Android operating system upgrades for its Galaxy smartphones and tablets.
Find all details here
Samsung Raises the Bar for Mobile Experience Innovation Committing to Three Generations of Android OS Upgrades
Samsung will now support select Galaxy devices for 3 generations of Android OS upgrades