diff --git a/.hgtags b/.hgtags
index a1f035c9bf..4adf79a1a1 100644
--- a/.hgtags
+++ b/.hgtags
@@ -17,3 +17,4 @@ e411cb53d4f12391b19ca869955912bcb76fd026 4.8.0
 a9878c1ea3357ffc3bd2704b7c464c9ca7c8a266 6.0.0
 6d580d7b658080d33a586c7efb63f50a44f7c942 6.2.0
 ad788c7f050d1df090e43911a04eb5a8a20624f9 6.4.0
+08c85f311393fbd8990042704c961a368c549c03 6.6.0