A Palo Alto Networks firewall that Panorama manages
is called a managed device. Panorama can manage firewalls
running the same major release or earlier major releases but Panorama
cannot manage firewalls running a later major release. For example,
Panorama running PAN-OS 8.1 can manage firewalls running PAN-OS
8.1 and earlier releases, but it cannot manage firewalls running
PAN-OS 9.0 or later releases. Additionally, it is not recommended
to manage firewalls running a later maintenance release than Panorama
as this may result in features not working as expected. For example,
it is not recommended to manage firewalls running PAN-OS 8.1.3 or
later maintenance releases if Panorama is running PAN-OS 8.1.2.
For more information on release information, see the PAN-OS 8.1 Release Notes. For more
information on supported PAN-OS versions, see the End-of-Life Summary.