When I checked 2 mins ago I was up to date, now I have just received an update. Don't know whether it is wp8.1 or a preliminary update! Will post version number soon...
EDIT: The update description reads "Windows PHONE 8.0.10532.166 - This will make it easier to update your phone to Windows Phone 8.1, which is loaded with new features and improvements we think your going to love." Downloading Now...