diff --git a/Sources/_OpenAPIGeneratorCore/Layers/RenderedSwiftRepresentation.swift b/Sources/_OpenAPIGeneratorCore/Layers/RenderedSwiftRepresentation.swift
index 3a9c89e3..90ea4b72 100644
--- a/Sources/_OpenAPIGeneratorCore/Layers/RenderedSwiftRepresentation.swift
+++ b/Sources/_OpenAPIGeneratorCore/Layers/RenderedSwiftRepresentation.swift
@@ -11,13 +11,12 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 //===----------------------------------------------------------------------===//
-#if os(Linux)
-@preconcurrency import struct Foundation.URL
-@preconcurrency import struct Foundation.Data
-#else
+#if canImport(Darwin)
 import struct Foundation.URL
-import struct Foundation.Data
+#else
+@preconcurrency import struct Foundation.URL
 #endif
+import struct Foundation.Data
 
 /// An in-memory file that contains the generated Swift code.
 typealias RenderedSwiftRepresentation = InMemoryOutputFile
diff --git a/Sources/_OpenAPIGeneratorCore/Layers/StructuredSwiftRepresentation.swift b/Sources/_OpenAPIGeneratorCore/Layers/StructuredSwiftRepresentation.swift
index 4cf1dab0..6ebe0570 100644
--- a/Sources/_OpenAPIGeneratorCore/Layers/StructuredSwiftRepresentation.swift
+++ b/Sources/_OpenAPIGeneratorCore/Layers/StructuredSwiftRepresentation.swift
@@ -38,12 +38,21 @@ struct ImportDescription: Equatable, Codable {
 
     /// Describes any requirement for the `@preconcurrency` attribute.
     enum PreconcurrencyRequirement: Equatable, Codable {
+
+        /// Platform requirement.
+        enum Requirement: Equatable, Codable {
+            /// Can import a certain library.
+            case canImport(String)
+            /// Swift version greater than or equal to.
+            case minimumSwift(String)
+        }
+
         /// The attribute is always required.
         case always
         /// The attribute is not required.
         case never
-        /// The attribute is required only on the named operating systems.
-        case onOS([String])
+        /// The attribute is required only if not this requirements are met.
+        case ifNot([Requirement])
     }
 }
 
diff --git a/Sources/_OpenAPIGeneratorCore/Renderer/TextBasedRenderer.swift b/Sources/_OpenAPIGeneratorCore/Renderer/TextBasedRenderer.swift
index e0f00e99..34c17185 100644
--- a/Sources/_OpenAPIGeneratorCore/Renderer/TextBasedRenderer.swift
+++ b/Sources/_OpenAPIGeneratorCore/Renderer/TextBasedRenderer.swift
@@ -162,11 +162,12 @@ struct TextBasedRenderer: RendererProtocol {
         switch description.preconcurrency {
         case .always: render(preconcurrency: true)
         case .never: render(preconcurrency: false)
-        case .onOS(let operatingSystems):
-            writer.writeLine("#if \(operatingSystems.map { "os(\($0))" }.joined(separator: " || "))")
-            render(preconcurrency: true)
-            writer.writeLine("#else")
+        case .ifNot(let requirements):
+            precondition(!requirements.isEmpty)
+            writer.writeLine("#if \(requirements.map { $0.render() }.joined(separator: " || "))")
             render(preconcurrency: false)
+            writer.writeLine("#else")
+            render(preconcurrency: true)
             writer.writeLine("#endif")
         }
     }
@@ -899,3 +900,12 @@ extension TextBasedRenderer {
         return renderer.renderedContents()
     }
 }
+
+private extension ImportDescription.PreconcurrencyRequirement.Requirement {
+    func render() -> String {
+        switch self {
+        case let .canImport(name): return "canImport(\(name))"
+        case let .minimumSwift(version): return "swift(>=\(version))"
+        }
+    }
+}
diff --git a/Sources/_OpenAPIGeneratorCore/Translator/CommonTypes/Constants.swift b/Sources/_OpenAPIGeneratorCore/Translator/CommonTypes/Constants.swift
index e72337ee..bcb6c960 100644
--- a/Sources/_OpenAPIGeneratorCore/Translator/CommonTypes/Constants.swift
+++ b/Sources/_OpenAPIGeneratorCore/Translator/CommonTypes/Constants.swift
@@ -26,10 +26,16 @@ enum Constants {
         /// The descriptions of modules imported by every generated file.
         static let imports: [ImportDescription] = [
             ImportDescription(moduleName: "OpenAPIRuntime", spi: "Generated"),
+            ImportDescription(moduleName: "Foundation", moduleTypes: ["struct Foundation.Data"]),
             ImportDescription(
                 moduleName: "Foundation",
-                moduleTypes: ["struct Foundation.URL", "struct Foundation.Data", "struct Foundation.Date"],
-                preconcurrency: .onOS(["Linux"])
+                moduleTypes: ["struct Foundation.Date"],
+                preconcurrency: .ifNot([.canImport("Darwin"), .minimumSwift("5.9.1")])
+            ),
+            ImportDescription(
+                moduleName: "Foundation",
+                moduleTypes: ["struct Foundation.URL"],
+                preconcurrency: .ifNot([.canImport("Darwin")])
             ),
         ]
 
diff --git a/Sources/swift-openapi-generator/Documentation.docc/Proposals/SOAR-0007.md b/Sources/swift-openapi-generator/Documentation.docc/Proposals/SOAR-0007.md
index 0eeeba34..f1b835fb 100644
--- a/Sources/swift-openapi-generator/Documentation.docc/Proposals/SOAR-0007.md
+++ b/Sources/swift-openapi-generator/Documentation.docc/Proposals/SOAR-0007.md
@@ -173,7 +173,7 @@ public enum Operations {
 
 This proposal covers generating the following additional API surface to
 simplify providing inputs.
- 
+
 ```swift
 extension APIProtocol {
     // The parameters to each overload will match those of the corresponding
@@ -194,7 +194,7 @@ extension APIProtocol {
 This proposal also covers generating the following additional API surface to
 simplify handling outputs.
 
-```swift 
+```swift
 // Note: Generating an extension is not prescriptive; implementations may
 // generate these properties within the primary type definition.
 extension Operations.getGreeting.Output {
@@ -313,15 +313,18 @@ Generated using the following command:
 // -----------
 // Generated by swift-openapi-generator, do not modify.
 @_spi(Generated) import OpenAPIRuntime
-#if os(Linux)
-@preconcurrency import struct Foundation.URL
-@preconcurrency import struct Foundation.Data
-@preconcurrency import struct Foundation.Date
-#else
-import struct Foundation.URL
 import struct Foundation.Data
+#if os(Darwin) || swift(>=5.9.1)
 import struct Foundation.Date
+#else
+@preconcurrency import struct Foundation.Date
+#endif
+#if os(Darwin)
+import struct Foundation.URL
+#else
+@preconcurrency import struct Foundation.URL
 #endif
+
 /// A type that performs HTTP operations defined by the OpenAPI document.
 public protocol APIProtocol: Sendable {
     /// - Remark: HTTP `GET /greet`.
diff --git a/Sources/swift-openapi-generator/runGenerator.swift b/Sources/swift-openapi-generator/runGenerator.swift
index 08b62d46..6f6eac9a 100644
--- a/Sources/swift-openapi-generator/runGenerator.swift
+++ b/Sources/swift-openapi-generator/runGenerator.swift
@@ -11,13 +11,12 @@
 // SPDX-License-Identifier: Apache-2.0
 //
 //===----------------------------------------------------------------------===//
-#if os(Linux)
-@preconcurrency import struct Foundation.URL
-@preconcurrency import struct Foundation.Data
-#else
+#if canImport(Darwin)
 import struct Foundation.URL
-import struct Foundation.Data
+#else
+@preconcurrency import struct Foundation.URL
 #endif
+import struct Foundation.Data
 import class Foundation.FileManager
 import ArgumentParser
 import _OpenAPIGeneratorCore
diff --git a/Tests/OpenAPIGeneratorCoreTests/Renderer/Test_TextBasedRenderer.swift b/Tests/OpenAPIGeneratorCoreTests/Renderer/Test_TextBasedRenderer.swift
index 79d23804..fccaf98c 100644
--- a/Tests/OpenAPIGeneratorCoreTests/Renderer/Test_TextBasedRenderer.swift
+++ b/Tests/OpenAPIGeneratorCoreTests/Renderer/Test_TextBasedRenderer.swift
@@ -93,13 +93,18 @@ final class Test_TextBasedRenderer: XCTestCase {
                 """#
         )
         try _test(
-            [ImportDescription(moduleName: "Foo", preconcurrency: .onOS(["Bar", "Baz"]))],
+            [
+                ImportDescription(
+                    moduleName: "Foo",
+                    preconcurrency: .ifNot([.canImport("Darwin"), .minimumSwift("5.9.1")])
+                )
+            ],
             renderedBy: TextBasedRenderer.renderImports,
             rendersAs: #"""
-                #if os(Bar) || os(Baz)
-                @preconcurrency import Foo
-                #else
+                #if canImport(Darwin) || swift(>=5.9.1)
                 import Foo
+                #else
+                @preconcurrency import Foo
                 #endif
                 """#
         )
diff --git a/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Client.swift b/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Client.swift
index ee9fc11c..4c4b29c7 100644
--- a/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Client.swift
+++ b/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Client.swift
@@ -1,13 +1,15 @@
 // Generated by swift-openapi-generator, do not modify.
 @_spi(Generated) import OpenAPIRuntime
-#if os(Linux)
-@preconcurrency import struct Foundation.URL
-@preconcurrency import struct Foundation.Data
-@preconcurrency import struct Foundation.Date
-#else
-import struct Foundation.URL
 import struct Foundation.Data
+#if canImport(Darwin) || swift(>=5.9.1)
 import struct Foundation.Date
+#else
+@preconcurrency import struct Foundation.Date
+#endif
+#if canImport(Darwin)
+import struct Foundation.URL
+#else
+@preconcurrency import struct Foundation.URL
 #endif
 import HTTPTypes
 /// Service for managing pet metadata.
diff --git a/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Server.swift b/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Server.swift
index 80d642b3..01a78170 100644
--- a/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Server.swift
+++ b/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Server.swift
@@ -1,13 +1,15 @@
 // Generated by swift-openapi-generator, do not modify.
 @_spi(Generated) import OpenAPIRuntime
-#if os(Linux)
-@preconcurrency import struct Foundation.URL
-@preconcurrency import struct Foundation.Data
-@preconcurrency import struct Foundation.Date
-#else
-import struct Foundation.URL
 import struct Foundation.Data
+#if canImport(Darwin) || swift(>=5.9.1)
 import struct Foundation.Date
+#else
+@preconcurrency import struct Foundation.Date
+#endif
+#if canImport(Darwin)
+import struct Foundation.URL
+#else
+@preconcurrency import struct Foundation.URL
 #endif
 import HTTPTypes
 extension APIProtocol {
diff --git a/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Types.swift b/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Types.swift
index 66b5e4c9..fd8f37ec 100644
--- a/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Types.swift
+++ b/Tests/OpenAPIGeneratorReferenceTests/Resources/ReferenceSources/Petstore/Types.swift
@@ -1,13 +1,15 @@
 // Generated by swift-openapi-generator, do not modify.
 @_spi(Generated) import OpenAPIRuntime
-#if os(Linux)
-@preconcurrency import struct Foundation.URL
-@preconcurrency import struct Foundation.Data
-@preconcurrency import struct Foundation.Date
-#else
-import struct Foundation.URL
 import struct Foundation.Data
+#if canImport(Darwin) || swift(>=5.9.1)
 import struct Foundation.Date
+#else
+@preconcurrency import struct Foundation.Date
+#endif
+#if canImport(Darwin)
+import struct Foundation.URL
+#else
+@preconcurrency import struct Foundation.URL
 #endif
 /// A type that performs HTTP operations defined by the OpenAPI document.
 public protocol APIProtocol: Sendable {