Nokia 5 has started receiving the March Android Security update. The update is 132.3MB in size and you will be notified once the update is available for your device. You can also manually check for the update by going to Settings > About Phone > System update.
What's new in this update:
As you can see in the screenshot below, this update only brings the March Security patch. You can find more about Google's March Security update at Android Security Bulletin.