diff -r c51380879054 -r 23ed47a895d5 mercurial/configitems.py
--- a/mercurial/configitems.py	Sat Oct 14 15:42:38 2017 -0400
+++ b/mercurial/configitems.py	Sat Oct 14 03:13:50 2017 -0400
@@ -179,6 +179,9 @@
 coreconfigitem('commands', 'status.verbose',
     default=False,
 )
+coreconfigitem('commands', 'update.check',
+    default=None,
+)
 coreconfigitem('commands', 'update.requiredest',
     default=False,
 )
@@ -409,6 +412,7 @@
 coreconfigitem('experimental', 'treemanifest',
     default=False,
 )
+# Deprecated, remove after 4.4 release
 coreconfigitem('experimental', 'updatecheck',
     default=None,
 )