I need to update my firewall from 8.0.17 to the latest release of 8.1. In the past I was instructed to first upgrade to the base release for the PANOS, and then install the maintenance release on top. Is that still the way it should be done.? If I remember correctly, the base has to be there before you can upgrade to the maintenance release.
If this is the case, do you recommend leaving the base in place for awhile before updating to the maintenance release or should it be applied as soon as the base is installed?
The recommended upgrade path for you wold be the following:
8.0.17 -> 8.0.20 (Download, Install, and Restart)
8.0.20 -> 8.1.0 (Download, and Install)
8.1.0 -> 8.1.11 (Download, Install, and Restart)
While you technically only need to install the base image (8.1.0) and don't necessarily need to reload the firewall until you install 8.1.11, I always recommend restarting and booting into 8.1.0 if you have a maintenance window that allows you enough time to do so.
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