diff --git a/packages/flutter/lib/src/widgets/automatic_keep_alive.dart b/packages/flutter/lib/src/widgets/automatic_keep_alive.dart
index bd40d2aa80f..e5573db4a98 100644
--- a/packages/flutter/lib/src/widgets/automatic_keep_alive.dart
+++ b/packages/flutter/lib/src/widgets/automatic_keep_alive.dart
@@ -319,19 +319,6 @@ class KeepAliveNotification extends Notification {
 /// consider using [AutomaticKeepAliveClientMixin], which uses a
 /// [KeepAliveHandle] internally.
 class KeepAliveHandle extends ChangeNotifier {
-  /// Trigger the listeners to indicate that the widget
-  /// no longer needs to be kept alive.
-  ///
-  /// This method does not call [dispose]. When the handle is not needed
-  /// anymore, it must be [dispose]d regardless of whether notifying listeners.
-  @Deprecated(
-    'Use dispose instead. '
-    'This feature was deprecated after v3.3.0-0.0.pre.',
-  )
-  void release() {
-    notifyListeners();
-  }
-
   @override
   void dispose() {
     notifyListeners();
@@ -366,7 +353,6 @@ mixin AutomaticKeepAliveClientMixin<T extends StatefulWidget> on State<T> {
   }
 
   void _releaseKeepAlive() {
-    // Dispose and release do not imply each other.
     _keepAliveHandle!.dispose();
     _keepAliveHandle = null;
   }