This call site is reachable on: 'iOS' 18.0 and later, 'maccatalyst' 18.0 and later. 'UIWindow' is obsoleted on: 'ios' 26.0 and later (Use the 'UIWindowScene' overload instead.), 'maccatalyst' 26.0 and later (Use the 'UIWindowScene' overload instead.).

I get these two warnings in my iOS project in Program.cs. Is it necessary to change something or can I ignore the warnings?

This call site is reachable on: 'iOS' 18.0 and later, 'maccatalyst' 18.0 and later. 'UIWindow' is obsoleted on: 'ios' 26.0 and later (Use the 'UIWindowScene' overload instead.), 'maccatalyst' 26.0 and later (Use the 'UIWindowScene' overload instead.).

var Window = new UIWindow(UIScreen.MainScreen.Bounds);

This call site is reachable on: 'iOS' 18.0 and later, 'maccatalyst' 18.0 and later. 'UIApplication.KeyWindow' is obsoleted on: 'ios' 13.0 and later (Should not be used for applications that support multiple scenes because it returns a key window across all connected scenes.), 'maccatalyst' 13.0 and later (Should not be used for applications that support multiple scenes because it returns a key window across all connected scenes.).

var window = UIApplication.SharedApplication.KeyWindow;

namespace MyProjectiOS
{ 
[Register("AppDelegate")]
 class Program : UIApplicationDelegate
 {
     public override UIWindow? Window
     {
         get;
         set;
     }
     private static Game1 game;
     private MyViewController MainViewController;
     private UserNotificationCenterDelegate _notificationDelegate;

     internal static void RunGame()
     {
         int w1 = (int)(UIScreen.MainScreen.Bounds.Size.Width * UIScreen.MainScreen.Scale);
         int h1 = (int)(UIScreen.MainScreen.Bounds.Size.Height * UIScreen.MainScreen.Scale);
         game = new Game1(w1, h1);
         game.Run();
     }

static void Main(string[] args)
{
    UIApplication.Main(args, null, typeof(MyProjectiOS.Program));
} 

public override void FinishedLaunching(UIApplication app)
     {
         CrossMediaManager.Current.Init();

         UIApplication.SharedApplication.IdleTimerDisabled = true;

         // Create and store the delegate
         _notificationDelegate = new UserNotificationCenterDelegate();

         // Request notification permissions from the user  
         UNUserNotificationCenter.Current.RequestAuthorization(UNAuthorizationOptions.Badge | UNAuthorizationOptions.Sound | UNAuthorizationOptions.Alert, (approved, err) => {
             // Handle approval
             if (approved == false)
             {
                 // REQUEST_P0STNOTIFICATIONS Permission Denied
             }

         });

         // Use the stored reference
         UNUserNotificationCenter.Current.Delegate = _notificationDelegate;

         UNUserNotificationCenter.Current.GetNotificationSettings((settings) =>
         {
             if (settings.AuthorizationStatus == UNAuthorizationStatus.NotDetermined || settings.AuthorizationStatus == UNAuthorizationStatus.Denied)
             {
                 InvokeOnMainThread(() =>// in UI thread
                 {
                     var okAlertController = UIAlertController.Create("Title", "go to setting", UIAlertControllerStyle.Alert);

                     //Add Action
                     okAlertController.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, (e) =>
                     {
                         var nurl = NSUrl.FromString(UIApplication.OpenNotificationSettingsUrl);
                         UIApplication.SharedApplication.OpenUrl(nurl!, new NSDictionary(), null); // This line of code will make app go to Notification page. If you test on simulator, the app will jump to Settings page.
                     }));

                     okAlertController.AddAction(UIAlertAction.Create("Cancel", UIAlertActionStyle.Cancel, null));

                     try
                     {
                         var rootVC = UIApplication.SharedApplication.Delegate?.GetWindow()?.RootViewController;
                     }
                     catch(Exception ex)
                     {
                     }

                 });
             }
             else
             {
             }
         });
       
         UIApplication.SharedApplication.RegisterForRemoteNotifications();
        
         var Window = new UIWindow(UIScreen.MainScreen.Bounds);
         MainViewController = new MyViewController();          
         Window.RootViewController = MainViewController;          
         Window.MakeKeyAndVisible(); 
         RunGame();      
}

 public override void FailedToRegisterForRemoteNotifications(UIApplication application, NSError error)
      {         
          var window = UIApplication.SharedApplication.KeyWindow;
          if (window != null)
          {
          var vc = window.RootViewController;
          while (vc.PresentedViewController != null)
          {
              vc = vc.PresentedViewController;
          }

          //Create Alert
          var okAlertController = UIAlertController.Create("Remote Notifications", "Failed to register.", UIAlertControllerStyle.Alert);

          //Add Action
          okAlertController.AddAction(UIAlertAction.Create("Ok", UIAlertActionStyle.Default, null));

          // Present Alert
          vc.PresentViewController(okAlertController, true, null);
          }
          else
          {
    
          }
      }