pfSense

Input validation added to most of the wireless config pieces, preventing configuration of a variety of wrong config combinations (5 GHz channels with 802.11b, for instance). Defaults updated in some cases. Requires enabling WME if an 11n mode is selected (Javascript should handle that on its own in the future). Channel auto doesn't work with hostap, so that's prohibited.

There are some possible combinations now that don't make sense to try together, but none of them that I can find break anything. All the major things should be covered. There are other possibilities for improvement in the future.

Wireless is definitely easier to deal with now, since most invalid config combinations are no longer possible.