Mention that UIScene is now the default (#13090)

Fixes #13089

Author: sfshaza2

src/content/release/breaking-changes/uiscenedelegate.md

@@ -6,9 +6,14 @@ description: >
 
 {% render "docs/breaking-changes.md" %}
 
+:::important
+As of the Flutter 3.41 release, `UIScene` support is the
+default and auto migration to `UIScene` happens automatically.
+:::
+
 ## Summary
 
-Apple now requires iOS developers to adopt the UIScene life cycle.
+Apple now requires iOS developers to adopt the `UIScene` life cycle.
 This migration has implications on the [app launch
 sequence]({{site.apple-dev}}/documentation/uikit/about-the-app-launch-sequence)
 and [app life
@@ -23,6 +28,7 @@ the following:
 > be required to use the UIScene life cycle, otherwise it will not launch.
 
 To use the UIScene lifecycle with Flutter, migrate the following support:
+
 * All Flutter apps that support iOS - See the [migration guide for Flutter
   apps](/release/breaking-changes/uiscenedelegate/#migration-guide-for-flutter-apps)
 * Flutter embedded in iOS native apps - See the [migration guide for adding
@@ -33,30 +39,28 @@ To use the UIScene lifecycle with Flutter, migrate the following support:
   plugins](/release/breaking-changes/uiscenedelegate/#migration-guide-for-flutter-plugins)
 
 Migrating to UIScene shifts the AppDelegate's role—the UI lifecycle is
-now handled by the UISceneDelegate. The AppDelegate
+now handled by the `UISceneDelegate`. The `AppDelegate`
 remains responsible for process events and the overall application
-lifecycle. All UI-related logic should be moved from the AppDelegate to the
-corresponding UISceneDelegate methods. After migrating to UIScene,
-UIKit won't call AppDelegate methods related to UI state.
+lifecycle. All UI-related logic should be moved from the `AppDelegate` to the
+corresponding `UISceneDelegate` methods. After migrating to `UIScene`,
+UIKit won't call `AppDelegate` methods related to UI state.
 
 ## Migration guide for Flutter apps
 
-### Auto-Migrate (Experimental)
+### Auto-migrate
 
-The Flutter CLI can automatically migrate your app if your AppDelegate has not
-been customized.
+As of Flutter 3.41, `UIScene` is supported by default.
+The Flutter CLI automatically migrates your app if your `AppDelegate`
+hasn't been customized.
 
-1. Enable UIScene Migration Feature
+1. Build or run your app
 
 ```console
-flutter config --enable-uiscene-migration
+flutter run
 ```
-
-2. Build or run your app
+or
 
 ```console
-flutter run
-or
 flutter build ios
 ```