You can update the Kubernetes version in cluster settings. You can only select a newer version; rolling back to one of the older version isn't possible.
Changing the version might cause performance issues in the cluster. We recommend doing this during a time when the project has the least activity.
You can either start the update immediately or schedule it for a specific time that works best for you.
Use this option if you want the update to start right away.
Go to the Kubernetes section and click on the cluster.
In the Management tab, click Update version.

Select the desired Kubernetes version.
Leave the Immediately option selected.
Click Change.

The update will start as soon as you confirm the action.
In the Management tab, click Update version.


The update will start automatically at the scheduled time.
If the scheduled update is no longer needed, you can cancel it before it starts.
Go to the Kubernetes section and click on the cluster.
In the Management tab, click Update version.
Click the cancel (×) icon next to the scheduled update.

The scheduled update will be removed and will not be executed.