diff --git a/README.md b/README.md
index 3f0d0ff460afed4a5edc6d280e2c937dee0266fd..14d1961a8d661b82fd9140ddfe7d6efafe2051a8 100644
--- a/README.md
+++ b/README.md
@@ -172,12 +172,9 @@ Edit `AppDelegate.m`:
   {
   //...
 +   [FIRApp configure];
-+   #if defined(__IPHONE_10_0) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0
 +   [[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];
-+   #endif
-  }
-
-+ #if defined(__IPHONE_10_0) && __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_10_0
++ }
++
 + - (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler
 + {
 +   [[NSNotificationCenter defaultCenter] postNotificationName:FCMNotificationReceived object:self userInfo:notification.request.content.userInfo];
@@ -186,21 +183,20 @@ Edit `AppDelegate.m`:
 +   }else{
 +     completionHandler(UNNotificationPresentationOptionNone);
 +   }
-
++
 + }
-
++
 + - (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler
 + {
 +     NSDictionary* userInfo = [[NSMutableDictionary alloc] initWithDictionary: response.notification.request.content.userInfo];
 +   [userInfo setValue:@YES forKey:@"opened_from_tray"];
 +   [[NSNotificationCenter defaultCenter] postNotificationName:FCMNotificationReceived object:self userInfo:userInfo];
 + }
-+ #else
++
 + //You can skip this method if you don't want to use local notification
 + -(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification {
 +   [[NSNotificationCenter defaultCenter] postNotificationName:FCMNotificationReceived object:self + userInfo:notification.userInfo];
 + }
-+ #endif
 + 
 + - (void)application:(UIApplication *)application didReceiveRemoteNotification:(nonnull NSDictionary *)userInfo fetchCompletionHandler:(nonnull void (^)(UIBackgroundFetchResult))completionHandler{
 +   [[NSNotificationCenter defaultCenter] postNotificationName:FCMNotificationReceived object:self userInfo:userInfo];