diff --git a/lib/Doctrine/ODM/PHPCR/Decorator/DocumentManagerDecorator.php b/lib/Doctrine/ODM/PHPCR/Decorator/DocumentManagerDecorator.php
index ea5de65ff..98a6ca877 100644
--- a/lib/Doctrine/ODM/PHPCR/Decorator/DocumentManagerDecorator.php
+++ b/lib/Doctrine/ODM/PHPCR/Decorator/DocumentManagerDecorator.php
@@ -242,4 +242,9 @@ public function getDocumentId(object $document): string
     {
         return $this->wrapped->getDocumentId($document);
     }
+
+    public function isUninitializedObject(mixed $value): bool
+    {
+        return $this->wrapped->isUninitializedObject($value);
+    }
 }
diff --git a/lib/Doctrine/ODM/PHPCR/DocumentManager.php b/lib/Doctrine/ODM/PHPCR/DocumentManager.php
index 18d9001fd..215b0ba59 100644
--- a/lib/Doctrine/ODM/PHPCR/DocumentManager.php
+++ b/lib/Doctrine/ODM/PHPCR/DocumentManager.php
@@ -19,6 +19,7 @@
 use Doctrine\ODM\PHPCR\Translation\TranslationStrategy\ChildTranslationStrategy;
 use Doctrine\ODM\PHPCR\Translation\TranslationStrategy\TranslationStrategyInterface;
 use Doctrine\Persistence\ObjectRepository;
+use Doctrine\Persistence\Proxy;
 use PHPCR\ItemNotFoundException;
 use PHPCR\NodeInterface;
 use PHPCR\PathNotFoundException;
@@ -656,4 +657,9 @@ public function getDocumentId(object $document): ?string
     {
         return $this->unitOfWork->getDocumentId($document);
     }
+
+    public function isUninitializedObject(mixed $value): bool
+    {
+        return $value instanceof Proxy && !$value->__isInitialized();
+    }
 }
diff --git a/tests/Doctrine/Tests/ODM/PHPCR/Decorator/DocumentManagerDecoratorTest.php b/tests/Doctrine/Tests/ODM/PHPCR/Decorator/DocumentManagerDecoratorTest.php
index 5ceafab99..032b41479 100644
--- a/tests/Doctrine/Tests/ODM/PHPCR/Decorator/DocumentManagerDecoratorTest.php
+++ b/tests/Doctrine/Tests/ODM/PHPCR/Decorator/DocumentManagerDecoratorTest.php
@@ -19,7 +19,9 @@ public function testCheckIfAllPublicMethodsAreDecorated(): void
         sort($dmMethods);
 
         $dmiMethods = get_class_methods(DocumentManagerInterface::class);
-        $dmiMethods = array_diff($dmiMethods, ['__construct']);
+        if (!in_array('isUninitializedObject', $dmiMethods)) {
+            $dmiMethods[] = 'isUninitializedObject'; // this method will only be added i ORM 4.*
+        }
         sort($dmiMethods);
 
         $dmdMethods = get_class_methods(OwnDocumentManager::class);