Wireless Access

We are running 6.1.3.5 code on our 3600 controller.  We noticed some overlapping 5ghz channels and noticed that none of our APs are using DFS channels.

I'm wondering if anyone is missing DFS channels in 6.1.3.5.?  They were working for us in 6.1.3.4.  

We have a TAC case open but were told that they might have been "renamed or removed" which didn't sit well with me.

Not all access points, for all countries on all versions of code support DFS channels.

As an aside very few clients even support DFS channels, so to run access points on those channels more often than not creates coverage holes.