It looks like they both did along with examples. I don't know if the changes are significant[0]. Revision history for main book: https://developer.apple.com/l

It looks like they both did along with examples. I don't know if the changes are significant[0]. Revision history for main book: https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/RevisionHistory.html https://developer.apple.com/library/prerelease/ios/documenta... [0] https://developer.apple.com/library/prerelease/ios/navigation/ https://developer.apple.com/library/prerelease/ios/navigatio... and search for "swift". All the docs seem to have July dates.