I did the latest upgrade to UConnect myself the other day. It adds Siri eyes free (not sure what else) and I tried using it, but doesn't seem to be working properly. It activates Siri and I was able to dictate a text message, but it wouldn't prompt to send it after I was done talking.
I only had the chance to try it once, but I'm wondering if anyone else has done the new update and if you've had a similar issue. I will have to do some more testing, but I may try to re-install the update if it is still not functioning properly.