I came here in the search for a successor of my m0n0wall. My m0n0wall also works flawlessly, but I don't feel well in the fast changing IT world to have a firewall from 2015. Do I get it right that the current Smallwall is also from 2015? Is this still considered safe? Pardon my question, but would it even be worth the effort to move from m0n0- to Smallwall if all I'd like is a "more recent" firewall?
The adds from the last m0n0wall are some l2tp fixes and additional drivers. As for security, all of the big front page exploits are in new features of the components of Smallwall that we do not use. It is amusing to me that when you get into the older versions, things are much more secure because they are not pushing out new features to exploit. What you use is of course your call, and I am getting the hint that I should pick things up again. But I have no worries about security at all!
You could do just some yearly "cycle" updates that maybe tweak the theme or use some new HTML features for the GUI just to fill that physiological barrier some have when they see "last update was 2015!!!!111" knee-jerk reactions, LOL. I like being able to brag that the last time I rebooted my firewall was the last time an update was released.