Fortigate HA cluster FortiOS upgrade in pictures

I already wrote tips for upgrading your Fortigate HA cluster https://yurisk.info/2023/06/18/tips-on-upgrading-fortigate-in-ha-cluster/ , but didn’t include screenshots of the upgrade to illustrate what actually happens. Today I fix that - below are screenshots of the cluster upgrade I did, with description. It will be helpful to …