diff --git a/.hgtags b/.hgtags
index 7a471710bc..54f3247dea 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,2 +1,3 @@
 abd6906e773b306d37ff7abba63d22c1f8ba6f48 6.2.0
 617725de9f668fbab96e8fba386b94a62c4b8a85 6.4.0
+ca2bb8e062fbb53e1f4dbaef01d6afc626b79e3a 6.6.0