I am a Native Developer, who is very much interested in learning Swift. I stumbled upon some books on Apple Books, namely The Swift Programming Language . I have seen a version for Swift 5 and Swift 4.2. Considering the Swift 5 book is in Beta, which version should I read to understand the Swift concepts? I'm sorry if this is not the right place for this kind of question.
I am also open to suggestions for learning materials whether it is a book, a course online or something else.