# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2012-09-12 20:29:15 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/245982425614807040) RT @ginatrapani: A to earlier Q: iOS 6 SDK and Xcode 4.5 just went gold master, and are app submission-safe. Build and test starting now ...