Apple hasn’t officially announced a Swift 6 edition of “The Swift Programming Language” book yet. Usually Apple updates the book after major Swift language releases stabilize and new language features are finalized. Since Swift 6 introduces major changes like strict concurrency checking and data-race safety, an updated version is likely expected in the future, but there’s no confirmed release date for Apple Books at the moment. You can continue following the latest Swift language updates here: https://www.swift.org/blog/