upping minimum support to swift 5.8

.github/workflows/build.yml

@@ -9,15 +9,12 @@ on:
 jobs:
   build:
 
-    runs-on: macos-12
+    runs-on: macos-14
 
     steps:
     - name: Checkout Project
       uses: actions/checkout@v3
 
-    - name: Switch to Xcode 13.4.1
-      run: sudo xcode-select -s /Applications/Xcode_13.4.1.app
-
     - name: Show Build Version
       run: xcodebuild -version
 

Package.swift

@@ -1,36 +1,10 @@
-// swift-tools-version: 5.6
+// swift-tools-version: 5.8
 
 import PackageDescription
 
-var globalSwiftSettings: [PackageDescription.SwiftSetting] = []
-#if canImport(Foundation)
-    #if swift(>=5.7) // && swift(<5.8)
-        import Foundation
-
-        if ProcessInfo.processInfo.environment["CI"] != nil {
-            globalSwiftSettings.append(.unsafeFlags(["-Xfrontend", "-strict-concurrency=complete"]))
-            /*
-             Summation from https://www.donnywals.com/enabling-concurrency-warnings-in-xcode-14/
-             Set `strict-concurrency` to `targeted` to enforce Sendable and actor-isolation checks
-             in your code. This explicitly verifies that `Sendable` constraints are met when you
-             mark one of your types as `Sendable`.
-
-             This mode is essentially a bit of a hybrid between the behavior that's intended in
-             Swift 6, and the default in Swift 5.7. Use this mode to have a bit of checking on
-             your code that uses Swift concurrency without too many warnings and / or errors in
-             your current codebase.
-
-             Set `strict-concurrency` to `complete` to get the full suite of concurrency
-             constraints, essentially as they will work in Swift 6.
-             */
-        }
-//    #elseif swift(>=5.8)
-//        import Foundation
-//        if ProcessInfo.processInfo.environment["CI"] != nil {
-//            globalSwiftSettings.append(.enableExperimentalFeature("StrictConcurrency"))
-//        }
-    #endif
-#endif
+var globalSwiftSettings: [PackageDescription.SwiftSetting] = [
+        .enableExperimentalFeature("StrictConcurrency")
+]
 
 let package = Package(
     name: "CRDT",