How to get the release version of Apple's "The Swift Programming Language" iBook I have the prerelease version of Apple's "The Swift Programming Language" book. No matter what I try, Apple won't let me update it to the release version. Has anybody else encountered this problem, and better yet, solved it?
This is the release version: 
https://itunes.apple.com/us/book/swift-programming-language/id881256329?isInPurchasedView=true&amp;mt=11

This is the prerelease version: 
https://itunes.apple.com/us/book/swift-programming-language/id1002622538?isInPurchasedView=true&amp;mt=11