I hadn’t considered this! Thanks for pointing it out. I guess I was trying to be clever by combining two steps into a single version of the code. I can see how that would cause a problem, since the code in the download no longer behaves the way the book is describing.
I think adding a v9 is a good solution; thanks for the suggestion.
Thank you for pointing out that the sentence after the code example could be a problem too, since it refers to programs from two different versions of the downloaded code. I’d still like to mention that the modified slowHash() function fixes both of them, but I’ll try to make it clear that you’d have to backport the changes to a previous version of the app by hand if you wanted to test both.
As ever, I really appreciate the feedback!