Are you referring to yesterday's updates? If so, I haven't seen any improvement in my slow WiFi connection issues, yet, but I haven't had any additional problems either.
After the update I keep getting no wifi adapter after the unit went to sleep and turning it back on. Uninstalling the Marvel driver and re-installing it always seem to fix that issue for me. Did it again yesterday and haven't had the same problem again.
Yep. Interestingly, I hadn't had the network adapter disappear for a couple of weeks, and then it happened yesterday after I applied the update. Not sure what's causing it, but if it only happens once a day or less often it's not that big a deal. Just go into Device Manager and search for new devices, and the adapter comes back.