Add versionadded tag

loic425 · loic425 · commit ff6be17ad7c0 · 2023-04-21T15:48:31.000+02:00
diff --git a/serializer.rst b/serializer.rst
@@ -530,6 +530,11 @@ given class:
         |                | ]                                                          |
         +----------------+------------------------------------------------------------+
 
+.. versionadded:: 6.3
+
+    This debug command was introduced in Symfony 6.3.
+
+
 Going Further with the Serializer
 ---------------------------------
 
