Updating Firebox T10-W from very old firmware
I have to update a very old firmware of a Firebox T10-W. The current firmware is v11.11.2 (!) and I've seen the last one is v12.5.11.
I read the release notes from the Watchguard website, I made a backup of the configuration, and I read notes about "Cyclops Blink" but I'm not sure if I can upgrade directly from v11.11.2 to v12.5.11 or if I need to follow a specific path ?
The configuration of this Firebox is very basic, only SSL-VPN are in use.
What is the success rate on this ? :-D
Thank you for your help !