diff --git a/superset/config.py b/superset/config.py
index 354e60c57186d..ccb7c217e1176 100644
--- a/superset/config.py
+++ b/superset/config.py
@@ -494,6 +494,7 @@ class D3TimeFormat(TypedDict, total=False):
     "ESCAPE_MARKDOWN_HTML": False,
     "DASHBOARD_CROSS_FILTERS": True,  # deprecated
     "DASHBOARD_VIRTUALIZATION": True,
+    # This feature flag is stil in beta and is not recommended for production use.
     "GLOBAL_ASYNC_QUERIES": False,
     "EMBEDDED_SUPERSET": False,
     # Enables Alerts and reports new implementation