Install It for the Changes to Quick Settings
In Nougat, Samsung's made some interesting changes to the Galaxy S6's Quick Settings panel. If you're an avid user, you might want to install the Android 7.0 update soon after it arrives.
One of the new features is the ability to add shortcuts to third-party applications to the Quick Panel. So, for instance, you could add a shortcut to Spotify and disable Online Mode without having to actually enter the application.
Spotify is just the tip of the iceberg. You can also add other popular third party applications like Twitter to your Quick Panel for much easier access to key functions.
The toggles in the Quick Panel also come with a nice new blue color though this is obviously secondary to the inclusion of third-party apps and additional shortcuts.