How does MicroK8S update work?

Using microk8s 1.18.2 on Ubuntu 20.04. When there is new updates in the stable channel, whether microk8s itself or some addons. Is there an update notification that pops up in Ubuntu like for other installed components & apps?

Well, microk8s is packaged as a snap. The updates occur in the background but you will see a popup with a loading bar saying ‘Updating Snaps’. I would read this to learn more about the Snap Updates Management.

Oh cool, thanks. This is perfect. Read from the link Snapcraft - Managing updates you gave:

Snaps update automatically, and by default, the snapd daemon checks for updates 4 times a day.

You may also want to look at how MicroK8s channels are used: How does MicroK8S update work?