Step 1: In the FPT Cloud Portal menu, select Kubernetes, and the system will display the Kubernetes Management page.
Step 2: Choose a Cluster that you want to upgrade the K8s version from the list.
Step 3: In the Essential Properties tab > Cluster Information > Version, click the Setting icon.
Step 4: Choose the Version that you want to upgrade to and click Upgrade.
Note: You can only upgrade but not downgrade versions.