HMD Global has started sending out the Android December Security update for the Nokia 8. The update is just 87.6MB in size and you will be notified once the update reaches your device. You can also manually check for the update by going to Settings > About Phone > System Updates.
What's new in this update:
As you can see in the screenshot below the update just brings the Google's December Security Patch. You can find more about Google's December Security update at Android Security Bulletin.