diff --git a/.hgtags b/.hgtags
index bb0cd5da22..092213e337 100644
--- a/.hgtags
+++ b/.hgtags
@@ -2672,3 +2672,4 @@ fca6ba0d2d66d38da8ae023e73944a69662c0d66 v7-4a-012
 c6dd0c545e5ca25e0b45fc1dbd7d1cb20642830e v7-4a-018
 bea5eb942011c09a6a8805e6b21079375462a710 v7-4a-019
 fa76be660fa914de79e3856caea8261cc7ab6c5b v7-4a-020
+fc6f4a653265f9e6b3dfa82faf067329dd5044a2 v7-4a-021