diff --git a/AltStore/App Detail/AppViewController.swift b/AltStore/App Detail/AppViewController.swift
index 1ea05cea..ad866fc1 100644
--- a/AltStore/App Detail/AppViewController.swift	
+++ b/AltStore/App Detail/AppViewController.swift	
@@ -346,7 +346,7 @@ private extension AppViewController
             
             if let installedApp = self.app.installedApp
             {
-                if let latestVersion = self.app.latestAvailableVersion, !installedApp.matches(latestVersion)
+                if let latestVersion = self.app.latestSupportedVersion, !installedApp.matches(latestVersion)
                 {
                     button.setTitle(NSLocalizedString("UPDATE", comment: ""), for: .normal)
                 }
@@ -364,7 +364,7 @@ private extension AppViewController
             button.progress = progress
         }
         
-        if let versionDate = self.app.latestAvailableVersion?.date, versionDate > Date()
+        if let versionDate = self.app.latestSupportedVersion?.date, versionDate > Date()
         {
             self.bannerView.button.countdownDate = versionDate
             self.navigationBarDownloadButton.countdownDate = versionDate
@@ -500,7 +500,7 @@ extension AppViewController
     {
         if let installedApp = self.app.installedApp
         {
-            if let latestVersion = self.app.latestAvailableVersion, !installedApp.matches(latestVersion)
+            if let latestVersion = self.app.latestSupportedVersion, !installedApp.matches(latestVersion)
             {
                 self.updateApp(installedApp)
             }
@@ -562,7 +562,7 @@ extension AppViewController
             return
         }
         
-        _ = AppManager.shared.update(installedApp, to: .latestAvailableVersionWithFallback, presentingViewController: self) { (result) in
+        _ = AppManager.shared.update(installedApp, presentingViewController: self) { (result) in
             DispatchQueue.main.async {
                 switch result
                 {
diff --git a/AltStore/Managing Apps/AppManager.swift b/AltStore/Managing Apps/AppManager.swift
index 5893e0b8..d29f2773 100644
--- a/AltStore/Managing Apps/AppManager.swift	
+++ b/AltStore/Managing Apps/AppManager.swift	
@@ -25,12 +25,6 @@ extension AppManager
     
     static let expirationWarningNotificationID = "altstore-expiration-warning"
     static let enableJITResultNotificationID = "altstore-enable-jit"
-    
-    enum PreferredAppVersion
-    {
-        case latestSupportedVersion
-        case latestAvailableVersionWithFallback
-    }
 }
 
 class AppManagerPublisher: ObservableObject
@@ -545,16 +539,9 @@ extension AppManager
     }
     
     @discardableResult
-    func update(_ installedApp: InstalledApp, to preferredAppVersion: PreferredAppVersion = .latestSupportedVersion, presentingViewController: UIViewController?, context: AuthenticatedOperationContext = AuthenticatedOperationContext(), completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> Progress
+    func update(_ installedApp: InstalledApp, presentingViewController: UIViewController?, context: AuthenticatedOperationContext = AuthenticatedOperationContext(), completionHandler: @escaping (Result<InstalledApp, Error>) -> Void) -> Progress
     {
-        let preferredApp: AppProtocol?
-        switch preferredAppVersion
-        {
-        case .latestSupportedVersion: preferredApp = installedApp.storeApp?.latestSupportedVersion
-        case .latestAvailableVersionWithFallback: preferredApp = installedApp.storeApp // Use StoreApp directly to correctly handle min/max OS versions in DownloadAppOperation.
-        }
-        
-        guard let app = preferredApp else {
+        guard let appVersion = installedApp.storeApp?.latestSupportedVersion else {
             completionHandler(.failure(OperationError.appNotFound(name: installedApp.name)))
             return Progress.discreteProgress(totalUnitCount: 1)
         }
@@ -572,7 +559,7 @@ extension AppManager
             }
         }
         
-        let operation = AppOperation.update(app)
+        let operation = AppOperation.update(appVersion)
         assert(operation.app as AnyObject !== installedApp) // Make sure we never accidentally "update" to already installed app.
         
         self.perform([operation], presentingViewController: presentingViewController, group: group)