Target only 5.9

.github/workflows/swift.yml

@@ -11,17 +11,11 @@ jobs:
     strategy:
       matrix:
         include:
-          - os: macos-12
-            swift_version: 5.7
-            xcode: /Applications/Xcode_14.0.app/Contents/Developer
-          - os: macos-13
-            swift_version: 5.8
-            xcode: /Applications/Xcode_14.3.app/Contents/Developer
           - os: macos-13 # TODO: macos-14 runner expected in October-December 2023
             swift_version: 5.9
             xcode: /Applications/Xcode_15.0.app/Contents/Developer
           - os: ubuntu-20.04
-            swift_version:
+            swift_version: 5.9
     name: Build on ${{ matrix.os }} with Swift ${{ matrix.swift_version }}
     timeout-minutes: 40
     runs-on: ${{ matrix.os }}

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.7
+// swift-tools-version:5.9
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription
@@ -21,16 +21,16 @@ let package = Package(
     ),
     .package(
       url: "https://github.com/apple/swift-argument-parser.git",
-      exact: "1.0.3"
+      .upToNextMinor(from: "1.2.2")
     ),
     .package(url: "https://github.com/apple/swift-nio.git", from: "2.34.0"),
     .package(
       url: "https://github.com/apple/swift-package-manager.git",
-      branch: "release/5.8"
+      branch: "release/5.9"
     ),
     .package(
       url: "https://github.com/apple/swift-tools-support-core.git",
-      branch: "release/5.8"
+      branch: "release/5.9"
     ),
     .package(url: "https://github.com/vapor/vapor.git", from: "4.57.1"),
     .package(url: "https://github.com/apple/swift-crypto.git", from: "2.2.0"),

Sources/CartonHelpers/DefaultToolchain.swift

@@ -13,5 +13,4 @@
 // limitations under the License.
 
 // TODO: make this `public let defaultToolchainVersion = "wasm-5.9.0-RELEASE"`
-// After a stable wasm-5.9 is released
 public let defaultToolchainVersion = "wasm-5.9-SNAPSHOT-2023-08-01-a"