Fatbobman’s Swift Weekly #020 | Time to Prepare for Swift 6
Weekly Comment
Recently, the Swift community announced the release process for Swift 6. Starting March 15, 2024, the release/6.0 branch will be branched off from the main branch, marking a significant acceleration in the Swift 6 project. It is anticipated to be released alongside the new version of Xcode in the second half of this year.
Swift 6 will introduce a stricter concurrency code checking mechanism, which will result in many of the current codes being unable to compile under Swift 6’s language mode. To provide developers with ample time to adapt, the Swift 6 compiler will continue to support the Swift 5 language mode, meaning developers don’t have to worry about their existing code not running in Swift 6. To fully leverage the latest features of Swift concurrency, developers are encouraged to enable the strict concurrency check flag (SWIFT_STRICT_CONCURRENCY) in their projects as early as possible in preparation for Swift 6.
Reflecting on my experience starting to learn the Swift language four years ago, I feel very fortunate because Swift 5 had already been released at that time, achieving ABI stability and thus reducing the learning cost. During the 5.x versions, although the core functionalities of the Swift language had stabilized, the community still added many new…
