With pfSense it was easy, they had update package, but how can I update the router from the web console (I really don't want to do 300Km of driving for that !)
Nevermind, after 4 times fetching and updating it finally reached the last version !
The console option (12) can be run via SSH, much like in other projects. Make sure you have your firewall connected, DNS configured and nothing blocking your way fetching HTTP packages from the mirror. :)