After I had handed in the seventh and final chapter of my Barcodes book, Manning is now also making this available on the Manning Early Access Program (MEAP). This makes the complete book content available for readers who prepurchased a copy.
There’s going to be a bonus section on OAuth 1, based on my recent work building an Open Source OAuth consumer plus a few minor tweaks related to API enhancements in iOS 8. But generally speaking all code that you will find in the book and samples will continue to work in iOS 8. Which is why we are considering dropping the “7” from the name. iOS 7 is the minimum deployment target for using most of the APIs discussed.
There has been a rumor that the Aztec and PDF417 Core Image generators have been made public in iOS 8, but so far I have not been able to verify this. I have an open Radar about this and also I emailed an Apple evangelist asking for verification. Until I do we have to continue assuming that those generators are still private.
Having said that, I am thankful to everybody who buys a MEAP copy of my book. Please let me know if you see anything iOS 8-related that should be mentioned, apart from the authorization changes for Core Location.