--- a/mercurial/localrepo.py	Wed Jan 09 15:45:17 2019 -0800
+++ b/mercurial/localrepo.py	Wed Jan 09 17:41:36 2019 -0800
@@ -363,7 +363,7 @@
 
 # Increment the sub-version when the revlog v2 format changes to lock out old
 # clients.
-REVLOGV2_REQUIREMENT = 'exp-revlogv2.0'
+REVLOGV2_REQUIREMENT = 'exp-revlogv2.1'
 
 # A repository with the sparserevlog feature will have delta chains that
 # can spread over a larger span. Sparse reading cuts these large spans into