diff --git a/packages/shared_preferences/shared_preferences_foundation/CHANGELOG.md b/packages/shared_preferences/shared_preferences_foundation/CHANGELOG.md
index 317d893..e487278 100644
--- a/packages/shared_preferences/shared_preferences_foundation/CHANGELOG.md
+++ b/packages/shared_preferences/shared_preferences_foundation/CHANGELOG.md
@@ -1,5 +1,6 @@
-## NEXT
+## 2.4.0
 
+* Adds Swift Package Manager compatibility.
 * Updates minimum iOS version to 12.0 and minimum Flutter version to 3.16.6.
 
 ## 2.3.5
diff --git a/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation.podspec b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation.podspec
index 41ec168..008f51f 100644
--- a/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation.podspec
+++ b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation.podspec
@@ -12,7 +12,7 @@
   s.license          = { :type => 'BSD', :file => '../LICENSE' }
   s.author           = { 'Flutter Team' => 'flutter-dev@googlegroups.com' }
   s.source           = { :http => 'https://github.com/flutter/packages/tree/main/packages/shared_preferences/shared_preferences_foundation' }
-  s.source_files = 'Classes/**/*'
+  s.source_files = 'shared_preferences_foundation/Sources/shared_preferences_foundation/**/*.swift'
   s.ios.dependency 'Flutter'
   s.osx.dependency 'FlutterMacOS'
   s.ios.deployment_target = '12.0'
@@ -23,6 +23,6 @@
      'LD_RUNPATH_SEARCH_PATHS' => '/usr/lib/swift',
   }
   s.swift_version = '5.0'
-  s.resource_bundles = {'shared_preferences_foundation_privacy' => ['Resources/PrivacyInfo.xcprivacy']}
+  s.resource_bundles = {'shared_preferences_foundation_privacy' => ['shared_preferences_foundation/Sources/shared_preferences_foundation/Resources/PrivacyInfo.xcprivacy']}
 
 end
diff --git a/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Package.swift b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Package.swift
new file mode 100644
index 0000000..eae02a4
--- /dev/null
+++ b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Package.swift
@@ -0,0 +1,28 @@
+// swift-tools-version: 5.9
+
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import PackageDescription
+
+let package = Package(
+  name: "shared_preferences_foundation",
+  platforms: [
+    .iOS("12.0"),
+    .macOS("10.14"),
+  ],
+  products: [
+    .library(name: "shared-preferences-foundation", targets: ["shared_preferences_foundation"])
+  ],
+  dependencies: [],
+  targets: [
+    .target(
+      name: "shared_preferences_foundation",
+      dependencies: [],
+      resources: [
+        .process("Resources")
+      ]
+    )
+  ]
+)
diff --git a/packages/shared_preferences/shared_preferences_foundation/darwin/Resources/PrivacyInfo.xcprivacy b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/Resources/PrivacyInfo.xcprivacy
similarity index 100%
rename from packages/shared_preferences/shared_preferences_foundation/darwin/Resources/PrivacyInfo.xcprivacy
rename to packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/Resources/PrivacyInfo.xcprivacy
diff --git a/packages/shared_preferences/shared_preferences_foundation/darwin/Classes/SharedPreferencesPlugin.swift b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/SharedPreferencesPlugin.swift
similarity index 100%
rename from packages/shared_preferences/shared_preferences_foundation/darwin/Classes/SharedPreferencesPlugin.swift
rename to packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/SharedPreferencesPlugin.swift
diff --git a/packages/shared_preferences/shared_preferences_foundation/darwin/Classes/messages.g.swift b/packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/messages.g.swift
similarity index 100%
rename from packages/shared_preferences/shared_preferences_foundation/darwin/Classes/messages.g.swift
rename to packages/shared_preferences/shared_preferences_foundation/darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/messages.g.swift
diff --git a/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/project.pbxproj b/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/project.pbxproj
index 4f0d992..a2ad88e 100644
--- a/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/project.pbxproj
+++ b/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/project.pbxproj
@@ -215,7 +215,7 @@
 		97C146E61CF9000F007C117D /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 1430;
+				LastUpgradeCheck = 1510;
 				ORGANIZATIONNAME = "";
 				TargetAttributes = {
 					331C8080294A63A400263BE5 = {
diff --git a/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 87131a0..8e3ca5d 100644
--- a/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1430"
+   LastUpgradeVersion = "1510"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner/AppDelegate.swift b/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner/AppDelegate.swift
index d83c0ff..4580c8e 100644
--- a/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner/AppDelegate.swift
+++ b/packages/shared_preferences/shared_preferences_foundation/example/ios/Runner/AppDelegate.swift
@@ -5,7 +5,7 @@
 import Flutter
 import UIKit
 
-@UIApplicationMain
+@main
 @objc class AppDelegate: FlutterAppDelegate {
   override func application(
     _ application: UIApplication,
diff --git a/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/project.pbxproj b/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/project.pbxproj
index d66a377..73f3d03 100644
--- a/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/project.pbxproj
+++ b/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/project.pbxproj
@@ -260,7 +260,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1250;
-				LastUpgradeCheck = 1300;
+				LastUpgradeCheck = 1510;
 				ORGANIZATIONNAME = "The Flutter Authors";
 				TargetAttributes = {
 					33CC10EC2044A3C60003C045 = {
diff --git a/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
index 6700d7b..8feb4cc 100644
--- a/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
+++ b/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1300"
+   LastUpgradeVersion = "1510"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner/AppDelegate.swift b/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner/AppDelegate.swift
index 5cec4c4..689c0ec 100644
--- a/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner/AppDelegate.swift
+++ b/packages/shared_preferences/shared_preferences_foundation/example/macos/Runner/AppDelegate.swift
@@ -5,7 +5,7 @@
 import Cocoa
 import FlutterMacOS
 
-@NSApplicationMain
+@main
 class AppDelegate: FlutterAppDelegate {
   override func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
     return true
diff --git a/packages/shared_preferences/shared_preferences_foundation/pigeons/messages.dart b/packages/shared_preferences/shared_preferences_foundation/pigeons/messages.dart
index 46deeef..ad8060e 100644
--- a/packages/shared_preferences/shared_preferences_foundation/pigeons/messages.dart
+++ b/packages/shared_preferences/shared_preferences_foundation/pigeons/messages.dart
@@ -7,7 +7,8 @@
 @ConfigurePigeon(PigeonOptions(
   dartOut: 'lib/messages.g.dart',
   dartTestOut: 'test/test_api.g.dart',
-  swiftOut: 'darwin/Classes/messages.g.swift',
+  swiftOut:
+      'darwin/shared_preferences_foundation/Sources/shared_preferences_foundation/messages.g.swift',
   copyrightHeader: 'pigeons/copyright_header.txt',
 ))
 @HostApi(dartHostTestHandler: 'TestUserDefaultsApi')
diff --git a/packages/shared_preferences/shared_preferences_foundation/pubspec.yaml b/packages/shared_preferences/shared_preferences_foundation/pubspec.yaml
index c94bdae..2e5d728 100644
--- a/packages/shared_preferences/shared_preferences_foundation/pubspec.yaml
+++ b/packages/shared_preferences/shared_preferences_foundation/pubspec.yaml
@@ -2,7 +2,7 @@
 description: iOS and macOS implementation of the shared_preferences plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/shared_preferences/shared_preferences_foundation
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+shared_preferences%22
-version: 2.3.5
+version: 2.4.0
 
 environment:
   sdk: ^3.2.3