diff --git a/.hgtags b/.hgtags
index c702a2de6f..b58497b3f7 100644
--- a/.hgtags
+++ b/.hgtags
@@ -8,3 +8,4 @@ fa1b7c84a9b40605b67653700f268349a6d6aca1 5.8.0
 a5cd61aff155e68d69de636848e757dd88449280 6.0.0
 4ad4c747c4789eb7f5898e8e8317f5b59bb4cc20 6.2.0
 33ab209a40d4ffbabc335a502b168f777c41fceb 6.4.0
+883deb2648ec6873c4c7515789fbd8dc42339470 6.6.0