After switching to Xcode 7, app size grew from 9 MB to 60 MB, is there a fix?

Question

I\'ve been going backwards in Git history to find the cause of a humongous file size change, but the only real reason I can find is the switch from Xcode 6 to Xcode 7 GM.

Answer 1

We also had this problem with Swift 1.2. See How to prevent SwiftSupport libraries to be included twice for my original question about this same issue.

I am pretty sure this is a toolchain issue.