Nokia 3 is also receiving the official December 2017 security system update. Users of this phone reported last week of this new OTA update arriving on their devices. This update is about 350MB in size and as per the official changelog, it includes the latest Google security patch and the usual system and UI enhancements.
HMD Global never explains in detail about these little changes, but we hope some day they do. This update is certainly bigger than past security updates. We have the update on our Nokia 3, which means a direct download link to the OTA ZIP file is just around the corner. UPDATE: Download Nokia 3 December 2017 OTA ZIP File.
You can go to Settings > About phone > System update on your Nokia 3 to check for an update. Now that Nokia 5 and Nokia 6 are getting Oreo Beta, we hope HMD Global considers Nokia 3 as well to be a part of the Nokia Beta Labs.