Earlier today, Samsung started distributing this month's security patch for all factory unlocked variants of the Galaxy S6 edge+ purchased in Europe. As you're probably well aware by now, the upgrade — dated January 1, 2017 – addresses a total of 67 Common Vulnerabilities and Exposures (CVE) in the Android OS and packs an additional 28 fixes for the firm's latest smartphones.
If you own an unlocked model of the Galaxy S6 edge+ and would like to see if the update is ready for your device, simply head into Settings » About Device » Download Updates Manually. Alternatively, you can always wait until you receive an alert instructing you to install the OTA, but that'll only appear if you have at least 50% of battery and a reliable connection to the Internet.