diff --git a/.hgtags b/.hgtags
index 347fbd1246..661ef9b842 100644
--- a/.hgtags
+++ b/.hgtags
@@ -15,3 +15,4 @@ a7a5871827600c18fa9af7f2e3c3d70f13d4b9d5 5.6.0
 b46666a8143fc95d932c987162cbc37480e4f722 6.0.0
 82ebdbf7e7d73d34be3dc79de6c9933a232babc4 6.2.0
 194a54ed8d9f6e2e5b5105926e9605ae6a9e2a6b 6.4.0
+8441a3b9d46e44345dc178405da40e5134f6910e 6.6.0