I think so… There is no option to switch between iOS6 and iOS7 beta anymore so they MUST have fixed it. I did not use my distributional profile yet but I hope it works now. 
do you actually need the final Xcode version for Pro accounts? (i.e. not Enterprise) Corona just sends the files back to their servers to build so it shouldn’t be needed should it?
I am using the xCode GM release but I will upgrade to the latest version in one or two weeks just to make sure there are no unexpected errors when submitting my projects to Apple.
The latest xCode version is not required to build for iOS. During the iOS7 beta I´ve been using the very first xCode release and had no problems at all 
I just got my first update approved built against iOS 7.
Does this mean when I now submit an app with 1217, it will work under iOS 6.1 and iOS7?
Or is suddenly iOS7 required for the user to download my app from the appstore?
thx