diff --git a/.hgtags b/.hgtags
index 6a72365e0f..b019f04138 100644
--- a/.hgtags
+++ b/.hgtags
@@ -13,3 +13,4 @@ a33a4cd4f72de5113168c1b565f93ee19c4d1034 5.2.0
 da291484d596aa5de3ee1091150f93c3799e61fe 6.0.0
 85c4238f1e5a55f7593e9f9aa3ea8df41003ce46 6.2.0
 019b9c00bdc482a8666665187cdb8f002858f5f9 6.4.0
+263e80bc96539e1c43c92071358d24fa6909212d 6.6.0