An NGFW administrator is updating PAN-OS on company data center firewalls managed by Panorama.

The firewall must be running a PAN-OS version that is supported by Panorama. This means that Panorama must be running the same or a newer PAN-OS version as the one being installed on the firewalls to maintain compatibility.

“Before you upgrade the firewall, ensure that Panorama is running the same or a later PAN-OS version than the firewall. Panorama must always be at the same or a higher version to maintain compatibility.”

(Source: Panorama Admin Guide – Upgrade Process)