
The November security patch comes with fixes for various vulnerabilities that affect Android, in addition to 14 vulnerabilities that are only found on Samsung devices. The update doesn't offer anything else; the changelog mentions performance and stability improvements as always, and the update is 64.42 MB in size. The build number on your S7 after installing the update will be G930FXXU1BPJJ. You should see a notification for the update on your device soon; if not, simply head into the Settings » About device menu and hit the Download updates manually button to grab the update.
Thanks, Premkumar!