Or what if you had a stable version, say 2.30, with its config settings set in stone. Then for all the little updates, until the next stable release, lets say 2.40, airio would read the 2.30 config file, and also the update configs.
So when you install airio 2.35 for example, it would read cfg.txt (same as in 2.30) then also read cfg.35.txt, which could have default values on install of the updated airio. This way, us server operators would not have to change anything at all, unless we wanted to use the new features.