The update is rolling out as we speak. If it has not reached your device yet, either S7 or S7 edge, it soon will. It weights 122 megabytes, so make sure that your phone is charged before downloading. Successor to the August patch, the newest one does not change anything major, instead just fixing a number of lesser issues.
If the update will not download automatically on your device, you can do it manually by going to Settings > Software update.