diff --git a/.hgtags b/.hgtags
index 45bac7a366..eae2773fc3 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,3 +1,4 @@
 8c7dc4a68eb44600a2e57f380b7fb39e7d4c9bd7 6.0.0
 180fa9e24693b07498ca2994729aa234e5f2f230 6.2.0
 12dbb1ede87b8d90716c7bd3d93116a5ef06cbf1 6.4.0
+693c2fbb45dee895662a6c24d8ebe55e9ca5bb53 6.6.0