Samsung has begun rolling out the May 2017 Android Security update for the venerable Galaxy Note 4 and Note 4 Edge. The update doesn’t contain any new features for the 2014 devices but will bring them up to the latest security patch for those still using it. Both phones are running Android Marshmallow and it is highly unlikely they will ever see Nougat despite their extended support after the Note7 debacle.
The update weighs in at 345MB and it is recommended that you download the OTA update via Wi-Fi. Once you have it downloaded, the install process will take about 10 minutes to complete and will require a reboot of the device.