diff --git a/.hgtags b/.hgtags
index da31d5ebca..b6b30d439f 100644
--- a/.hgtags
+++ b/.hgtags
@@ -9,3 +9,4 @@ bb2edb0aff724117fdd3503eb891b8adee662267 4.4.0
 96b2dedcb4ab809b637f78ad616c7015fa57b8e7 5.8.0
 251fcf948c71ec49319d4650c829fc8bec20f2e0 6.0.0
 f399a4f38b648f1f186b2da9a2ef7487d67afedf 6.2.0
+610961617de42c7c70217e8722452bde833aa0e7 6.4.0