Yes, V10 does not support the 2600 nor 3600 Series. As I mentioned a few weeks ago you have a couple of options to expand your 2600/3600 network using 3700 or 3800 with V9.21 or you can work with one of our Partners and/or Extreme Sales representative to upgrade your legacy platforms to one of the newer platforms including the new 3900 Series Wave 2 APs.