It appears that in the 5th edition of the book, none of the IBOutlets are marked as
weak. This is in stark contrast to the earlier editions of the book where we were told that the top-level
UIView (i.e., in a XIB) maintains strong references to the subviews, and therefore a
UIViewController only needs weak references to subviews (such as
Apple’s documentation still shows the pattern of using the
weak keyword, and the earlier editions seemed so deliberate, so I’m curious, is there a reason behind the change?
This small point aside, I really appreciate your books, and I don’t think I would have landed my first job as an iOS developer without it, so thanks BNR!