Perhaps where you are at the moment hasn't got the upgrade.
I can't remember what I was doing Thursday night but I got the message about an update and it would be needed before getting the upgrade one so I just clicked for it to go ahead.
That was installed then got the other had a message that my data was being migrated had a few reboots but after it was finished I was upgraded to Cyan with more features.
There is now a feature called WiFi Sense so it will search for networks in the area to connect to but I've turned that off, everytime I set it to connect to my router things were OK but then I look a while later and it would be connected to an open network, BT Fon, and I wouldn't be able to do some things.
I've still got to see if I can still send photos as MMS because I think the network setting got changed to what they were when I got the phone and I had to change them so I could send MMS.
One of the things I was looking forward to trying out was the assistant but apparently at the moment that's only available in the US, plus I'm probably restricted from some things via the network provider.
Hope you don't have to wait too long for the upgrade Wolfgang, I like it.