A few days ago, Samsung pushed a system upgrade to Galaxy Note 4 in some regions. The first to get the update was in Europe. At present, users in Germany and Greece have received the upgrade notice, and users in other countries and regions need to wait for some time.
The size of this upgrade package is only 137MB, so it is just a small upgrade. It is not the Android 5.0 that Samsung users have long expected. The system is still Android 4.4.4 KitKat, but the version number has changed to N910FXXU1ANK4, and the system interface has not changed.