diff --git a/.hgtags b/.hgtags
index cade777..e204fe7 100644
--- a/.hgtags
+++ b/.hgtags
@@ -19,3 +19,4 @@ dcc5427f99f51a978386a0dd770467cd911ac84b 1.6
 d3e6fa22ae45b38b1bdb0d813390365e5930360b 1.8
 c7f5f4d543170f03d70468e98a3a0ec8d2c4161b 1.9
 1fce5c464fcd870b9f024aa1853d5cf3a3eb371b 2.0
+7656557298c954469a6a9564e6649b1fb5db663e 2.1