The customer just bought a new Samsung tablet at Office Depot that is running KitKat. They have an app that needs a newer version of the OS. They went to Settings > Software update and tried to get a newer version, but it said they had the latest.
In brief online queries, I am not finding an easy way to install a higher version for them, as though it's not allowed. On a Windows 7 PC we can (obviously) upgrade to Windows 10 in most cases. Likewise, can we upgrade a new Samsung tablet to Lollipop or Marshmallow or Nougat? If so, exactly how would I do this for my customer? TIA