But Still yet No information about changes where seen. In Chinese and Hong Kong, this are the variants (SM-N9508 and SM-N9500) of the phone getting the update as of now.
The update will be arriving via OTA (Over-The-Air). This update notification will appear on your device shortly. Or you can Still Navigate To SETTINGS => ABOUT PHONE => SYSTEM UPDATE and See if the update is available, If available Download ad Install.
For Those Outside of China and Hong Kong the update will gradually arrive at your end, In No time.