The CeroWrt 3.10.50-1 build has been released. It has several improvements, including resyncing with the OpenWrt head, another fix to wifi that may completely address the problem with bug #442, a GUI for the BCP38 rules, and some fixes to the SQM system.
Get it at: http://snapon.lab.bufferbloat.net/~cero2/cerowrt/wndr/3.10.50-1/
Update - 21Aug2014: This build has proved very stable, and we strongly recommend that people install it.