--- a/hgext/notify.py	Thu Oct 12 00:57:49 2017 +0200
+++ b/hgext/notify.py	Fri Oct 13 21:50:32 2017 +0200
@@ -185,6 +185,9 @@
 configitem('notify', 'merge',
     default=True,
 )
+configitem('notify', 'outgoing',
+    default=None,
+)
 configitem('notify', 'sources',
     default='serve',
 )