As per `Package.swift` we support Swift 5.8 here. But an actual compilation fails with ``` error: Invalid manifest (compiled with: ["/usr/bin/swiftc", "-vfsoverlay", "/tmp/TemporaryDirectory.ImEdbq/vfs.yaml", "-L", "/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/usr/lib/swift/pm/ManifestAPI", "-swift-version", "5", "-I", "/usr/lib/swift/pm/ManifestAPI", "-package-description-version", "5.8.0", "/Package.swift", "-Xfrontend", "-disable-implicit-concurrency-module-import", "-Xfrontend", "-disable-implicit-string-processing-module-import", "-o", "/tmp/TemporaryDirectory.qU2Iyh/swift-async-algorithms-manifest"]) /Package.swift:4:8: error: no such module 'CompilerPluginSupport' import CompilerPluginSupport ^ in https://github.com/apple/swift-async-algorithms.git ``` This is a SemVer break so needs urgent fixing.