Patching One HA fully then the next.
If patching a HA pair to the next Major version i.e. 9.0.6 -> 9.1.0 is it safe to patch one of the pair all the way to 9.1.0 (minor versions and major versions) And then fail over and do the other firewall to bring that up to latest minor and finally on to the major version. Or should both firewalls be running the same latest minor version ...




