All the current xcode stacks track a set version plus betas of that version. The problem with this is if its not the absolute latest beta version itunes rejects the app as an “invalid” binary. See below:
Invalid Toolchain - Your app was built with a beta version of Xcode or SDK. Apps submitted to the App Store must be built with the GM version of Xcode 9 and the SDK for iOS 11, tvOS 11, watchOS 4, or macOS 10.13 or later.
Can we have a stack that tracks the latest version of xcode without betas?
We, in fact, have this stack available in the form of the Xcode 10.1.x, on macOS 10.13 (High Sierra) you shouldn’t experience the mentioned errors on that environment at all!