--- a/mercurial/configitems.py	Tue Apr 10 14:29:15 2018 -0700
+++ b/mercurial/configitems.py	Tue Apr 10 18:16:47 2018 -0700
@@ -538,6 +538,9 @@
 coreconfigitem('experimental', 'hook-track-tags',
     default=False,
 )
+coreconfigitem('experimental', 'httppeer.advertise-v2',
+    default=False,
+)
 coreconfigitem('experimental', 'httppostargs',
     default=False,
 )