AudioKit · kentron · Jun 12, 2026 · Jun 12, 2026
diff --git a/AudioKitSynthOne.xcodeproj/project.pbxproj b/AudioKitSynthOne.xcodeproj/project.pbxproj
@@ -1542,6 +1542,7 @@
 				A02F99CB702A38B4BC2953CB /* [CP] Embed Pods Frameworks */,
 				C474D95D1F13172B00946035 /* Embed App Extensions */,
 				C4421AA920B81D0500BE9F12 /* ShellScript */,
+				E7D6C04A7C9CD186F83F6195 /* [CP] Copy Pods Resources */,
 			);
 			buildRules = (
 			);
@@ -1738,10 +1739,32 @@
 			inputPaths = (
 				"${PODS_ROOT}/Target Support Files/Pods-AudioKitSynthOne/Pods-AudioKitSynthOne-frameworks.sh",
 				"${BUILT_PRODUCTS_DIR}/Disk/Disk.framework",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/Audiobus/Audiobus.framework/Audiobus",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignal/OneSignalFramework.framework/OneSignalFramework",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalCore/OneSignalCore.framework/OneSignalCore",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalExtension/OneSignalExtension.framework/OneSignalExtension",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalInAppMessages/OneSignalInAppMessages.framework/OneSignalInAppMessages",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalLiveActivities/OneSignalLiveActivities.framework/OneSignalLiveActivities",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalLocation/OneSignalLocation.framework/OneSignalLocation",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalNotifications/OneSignalNotifications.framework/OneSignalNotifications",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalOSCore/OneSignalOSCore.framework/OneSignalOSCore",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalOutcomes/OneSignalOutcomes.framework/OneSignalOutcomes",
+				"${PODS_XCFRAMEWORKS_BUILD_DIR}/OneSignalXCFramework/OneSignalUser/OneSignalUser.framework/OneSignalUser",
 			);
 			name = "[CP] Embed Pods Frameworks";
 			outputPaths = (
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Disk.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Audiobus.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalFramework.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalCore.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalExtension.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalInAppMessages.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalLiveActivities.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalLocation.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalNotifications.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalOSCore.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalOutcomes.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/OneSignalUser.framework",
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
@@ -1761,6 +1784,28 @@
 			shellPath = /bin/sh;
 			shellScript = "#if which swiftlint >/dev/null; then\n#swiftlint\n#else\n#echo \"warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint\"\n#fi\n";
 		};
+		E7D6C04A7C9CD186F83F6195 /* [CP] Copy Pods Resources */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+				"${PODS_ROOT}/Target Support Files/Pods-AudioKitSynthOne/Pods-AudioKitSynthOne-resources.sh",
+				"${PODS_CONFIGURATION_BUILD_DIR}/AppCenter/AppCenterAnalytics.bundle",
+				"${PODS_CONFIGURATION_BUILD_DIR}/AppCenter/AppCenter.bundle",
+				"${PODS_CONFIGURATION_BUILD_DIR}/AppCenter/AppCenterCrashes.bundle",
+			);
+			name = "[CP] Copy Pods Resources";
+			outputPaths = (
+				"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/AppCenterAnalytics.bundle",
+				"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/AppCenter.bundle",
+				"${TARGET_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/AppCenterCrashes.bundle",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-AudioKitSynthOne/Pods-AudioKitSynthOne-resources.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
 		F326D17312DDE12585405CB6 /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
 			buildActionMask = 2147483647;
@@ -2243,12 +2288,13 @@
 				DEVELOPMENT_TEAM = 9W69ZP8S5F;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				INFOPLIST_FILE = OneSignalNotificationServiceExtension/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
 				MARKETING_VERSION = 1.4.1;
 				PRODUCT_BUNDLE_IDENTIFIER = com.audiokitpro.AudioKitSynthOne.OneSignalNotificationServiceExtension;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
+				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
@@ -2270,12 +2316,13 @@
 				DEVELOPMENT_TEAM = 9W69ZP8S5F;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				INFOPLIST_FILE = OneSignalNotificationServiceExtension/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 11.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
 				MARKETING_VERSION = 1.4.1;
 				PRODUCT_BUNDLE_IDENTIFIER = com.audiokitpro.AudioKitSynthOne.OneSignalNotificationServiceExtension;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
+				SWIFT_OBJC_BRIDGING_HEADER = "";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};
@@ -2435,7 +2482,7 @@
 				DEVELOPMENT_TEAM = 9W69ZP8S5F;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				INFOPLIST_FILE = AudioKitSynthOne/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				LIBRARY_SEARCH_PATHS = (
 					"$(inherited)",
@@ -2479,7 +2526,7 @@
 				DEVELOPMENT_TEAM = 9W69ZP8S5F;
 				GCC_OPTIMIZATION_LEVEL = fast;
 				INFOPLIST_FILE = AudioKitSynthOne/Info.plist;
-				IPHONEOS_DEPLOYMENT_TARGET = 10.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				LIBRARY_SEARCH_PATHS = (
 					"$(inherited)",

diff --git a/AudioKitSynthOne/AppDelegate+PlatformServices.swift b/AudioKitSynthOne/AppDelegate+PlatformServices.swift
@@ -8,29 +8,24 @@
 
 import Foundation
 #if !targetEnvironment(macCatalyst)
-import OneSignal
+import OneSignalFramework
 import AppCenter
 import AppCenterAnalytics
 import AppCenterCrashes
 
 extension AppDelegate {
     public func initializePlatformServices() {
-        let onesignalInitSettings = [kOSSettingsKeyAutoPrompt: false]
-
         // Set your OneSignal App ID in the Private.swift file.
-        OneSignal.initWithLaunchOptions(launchOptions,
-                                        appId: Private.OneSignalAppID,
-                                        handleNotificationAction: nil,
-                                        settings: onesignalInitSettings)
-
-        OneSignal.inFocusDisplayType = OSNotificationDisplayType.notification
+        // OneSignal 5.x no longer auto-prompts; permission is requested explicitly
+        // from Manager+PushNotification (pushPopUp).
+        OneSignal.initialize(Private.OneSignalAppID, withLaunchOptions: launchOptions)
 
         // Setup AppCenter for Crash Log Collection
         if (Private.AppCenterAPIKey != "***REMOVED***") {
-            MSAppCenter.start(Private.AppCenterAPIKey, withServices:[
-                MSAnalytics.self,
-                MSCrashes.self
-                ])
+            AppCenter.start(withAppSecret: Private.AppCenterAPIKey, services: [
+                Analytics.self,
+                Crashes.self
+            ])
         }
     }
 }

diff --git a/AudioKitSynthOne/AppDelegate.swift b/AudioKitSynthOne/AppDelegate.swift
@@ -13,10 +13,12 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
 
     let conductor = Conductor.sharedInstance
 
-    var window: UIWindow?
-
     var launchOptions: [UIApplication.LaunchOptionsKey: Any]?
 
+    /// URL the app was launched with (TuneUp). The window/scene is created by
+    /// SceneDelegate, which captures any launch URL here for later retrieval.
+    var launchURL: URL?
+
     func application(_ application: UIApplication,
                      didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
 
@@ -36,54 +38,93 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
         // Start Audio Engine
         conductor.start()
 
-        // Determine iPhone or iPad
+        return true
+    }
+
+    func applicationWillTerminate(_ application: UIApplication) {
+
+        // Called when the application is about to terminate.
+        // Save data if appropriate. See also sceneDidEnterBackground:.
+        conductor.stopEngine()
+    }
+
+    func canOpenURL(_ url: URL) -> Bool {
+
+        return true
+    }
+}
+
+extension AppDelegate {
+
+    public func applicationLaunchedWithURL() -> URL? {
+
+        let launchUrl = self.launchURL
+        self.launchURL = nil
+        return launchUrl
+    }
+}
+
+// MARK: - Scene Lifecycle
+
+/// iOS 13+ requires apps to adopt the UIScene lifecycle (enforced as a fatal
+/// runtime issue starting iOS 26/27). This scene delegate owns the window and
+/// carries over the behaviour that used to live in AppDelegate.
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+    private var conductor = Conductor.sharedInstance
+
+    func scene(_ scene: UIScene,
+               willConnectTo session: UISceneSession,
+               options connectionOptions: UIScene.ConnectionOptions) {
+        guard let windowScene = scene as? UIWindowScene else { return }
+
+        // Capture a launch URL (TuneUp) so applicationLaunchedWithURL() can return it.
+        if let launchURL = connectionOptions.urlContexts.first?.url {
+            (UIApplication.shared.delegate as? AppDelegate)?.launchURL = launchURL
+        }
+
+        let window = UIWindow(windowScene: windowScene)
         let mainStoryboard = UIStoryboard(name: "Main", bundle: Bundle.main)
+
+        // Determine iPhone or iPad
         if conductor.device == .pad {
-             window?.rootViewController = mainStoryboard.instantiateInitialViewController()
+            window.rootViewController = mainStoryboard.instantiateInitialViewController()
         } else {
-             window?.rootViewController = mainStoryboard.instantiateViewController(withIdentifier: "iPhoneParentVC")
+            window.rootViewController = mainStoryboard.instantiateViewController(withIdentifier: "iPhoneParentVC")
         }
-        window?.makeKeyAndVisible()
 
-        return true
+        self.window = window
+        window.makeKeyAndVisible()
     }
 
-    func applicationDidEnterBackground(_ application: UIApplication) {
-
+    func sceneDidEnterBackground(_ scene: UIScene) {
         conductor.checkIAAConnectionsEnterBackground()
     }
 
-
-    func applicationWillEnterForeground(_ application: UIApplication) {
-
+    func sceneWillEnterForeground(_ scene: UIScene) {
         conductor.checkIAAConnectionsEnterForeground()
     }
 
-    func applicationWillResignActive(_ application: UIApplication) {
-
+    func sceneWillResignActive(_ scene: UIScene) {
         // Prevent app from sleeping if never sleep is toggled on
-        // Toggle back to sleep mode after 1 minutes
+        // Toggle back to sleep mode after 1 minute
         DispatchQueue.main.asyncAfter(deadline: .now() + 60) {
             UIApplication.shared.isIdleTimerDisabled = false
         }
-
-        UIApplication.shared.isIdleTimerDisabled = conductor.neverSleep
-    }
 
-    func applicationWillTerminate(_ application: UIApplication) {
-
-        // Called when the application is about to terminate.
-        // Save data if appropriate. See also applicationDidEnterBackground:.
-        conductor.stopEngine()
+        UIApplication.shared.isIdleTimerDisabled = conductor.neverSleep
     }
 
     /// TuneUp
-    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
+    func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {
+        guard let url = URLContexts.first?.url else { return }
 
         // on launch tuningsPanel is not yet created -> fall back to tunings model initialization
         guard let tuningsPanel = conductor.viewControllers.first(where: { $0 is TuningsPanelController })
             as? TuningsPanelController else {
-                return true
+                return
         }
 
         // open url
@@ -98,22 +139,5 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
                 AKLog("error removing temporary file at \(url): \(error)")
             }
         }
-
-        return true
-    }
-
-    func canOpenURL(_ url: URL) -> Bool {
-
-        return true
-    }
-}
-
-extension AppDelegate {
-
-    public func applicationLaunchedWithURL() -> URL? {
-
-        let launchUrl = self.launchOptions?[.url] as? URL
-        self.launchOptions = nil
-        return launchUrl
     }
 }
diff --git a/AudioKitSynthOne/DSP/AudioKitSynthOne-Bridging-Header.h b/AudioKitSynthOne/DSP/AudioKitSynthOne-Bridging-Header.h
@@ -12,7 +12,7 @@
 #import "S1Parameter.h"
 #import "AKSynthOneRate.h"
 #if !TARGET_OS_MACCATALYST
-#import "Audiobus.h"
+#import <Audiobus/Audiobus.h>
 #endif
 // Set the ABLETON_ENABLED user setting to 1 (at the project level) to enable Ableton Link support
 // Note: you will need the files from their SDK!

diff --git a/AudioKitSynthOne/Info.plist b/AudioKitSynthOne/Info.plist
@@ -111,8 +111,23 @@
 		<string>audio</string>
 		<string>remote-notification</string>
 	</array>
-	<key>UIMainStoryboardFile</key>
-	<string>Main</string>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
 	<key>UIRequiredDeviceCapabilities</key>
 	<array>
 		<string>armv7</string>

diff --git a/AudioKitSynthOne/Manager/Manager+PushNotification.swift b/AudioKitSynthOne/Manager/Manager+PushNotification.swift
@@ -9,7 +9,7 @@
 import Foundation
 
 #if !targetEnvironment(macCatalyst)
-import OneSignal
+import OneSignalFramework
 extension Manager {
 
     func pushPopUp() {
@@ -23,9 +23,9 @@ extension Manager {
         let submitAction = UIAlertAction(title: "Yes! 👍🏼", style: .default) { (_) in
             self.appSettings.pushNotifications = true
             self.saveAppSettingValues()
-            OneSignal.promptForPushNotifications(userResponse: { accepted in
+            OneSignal.Notifications.requestPermission({ accepted in
                 print("User accepted notifications: \(accepted)")
-            })
+            }, fallbackToSettings: true)
         }
 
         let cancelAction = UIAlertAction(title: "Later", style: .default) { (_) in

diff --git a/OneSignalNotificationServiceExtension/NotificationService.swift b/OneSignalNotificationServiceExtension/NotificationService.swift
@@ -8,7 +8,7 @@
 
 import UserNotifications
 
-import OneSignal
+import OneSignalExtension
 
 class NotificationService: UNNotificationServiceExtension {
 
@@ -23,8 +23,9 @@ class NotificationService: UNNotificationServiceExtension {
         bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)
 
         if let bestAttemptContent = bestAttemptContent {
-            OneSignal.didReceiveNotificationExtensionRequest(self.receivedRequest, with: self.bestAttemptContent)
-            contentHandler(bestAttemptContent)
+            OneSignalExtension.didReceiveNotificationExtensionRequest(self.receivedRequest,
+                                                                      with: bestAttemptContent,
+                                                                      withContentHandler: contentHandler)
         }
     }
 
@@ -33,7 +34,8 @@ class NotificationService: UNNotificationServiceExtension {
         // Use this as an opportunity to deliver your "best attempt" at modified content,
         // otherwise the original push payload will be used.
         if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
-            OneSignal.serviceExtensionTimeWillExpireRequest(self.receivedRequest, with: self.bestAttemptContent)
+            OneSignalExtension.serviceExtensionTimeWillExpireRequest(self.receivedRequest,
+                                                                     with: bestAttemptContent)
             contentHandler(bestAttemptContent)
         }
     }