Nokia Mobile has started the rollout of new updates to the Nokia 8.1 and Nokia 2.1. Both devices are receiving a maintenance release, which should kill some bugs in the UI. The update for Nokia 8.1 bumps the build ID to 5_59E with a payload sized 238.3MB. Similarly, the Nokia 2.1 gets a new build 1_13E, measuring about 300 MB.
The updates might not be immediately available in all regions. But most regions should receive it shortly. If you cannot wait, then you can manually check for updates by heading to Settings > System > Advanced > System update.