Just downloaded and installed. Great update for me. Before this update my MacPro would drop connection in 1 minute (had to bridge AirPort Extreme to even use it), now it's perfect. And I finally get 300mbit/s instead of 130mbit/s, without any changes in settings. Overall network feels more stable and fast. Unfortunately I still have to keep the AEBS for MacMini, Powerbook and iPhone (oh, and PC of my mother-in-law) to connect. So, I run TC in n-only mode and hardwire/bridge it with AEBS, which is in g-compatible n-mode. Now everything, FINALLY, works.