diff --git a/.hgtags b/.hgtags
index 1377548ab7..6a4c09ae88 100644
--- a/.hgtags
+++ b/.hgtags
@@ -25,3 +25,4 @@ d0dbad4da188503b44e1b18d3e627f2dd293891f 5.8.0
 ba13b911bd00e710bd204c190ef0bb539ca2b1a0 6.0.0
 22142ae56792ee5c9d0f8f06b97174f83d80cf1b 6.2.0
 e3dcd5e07de911bdc00308d710c65783f102db80 6.4.0
+787cb1b506aaad8293bfa885930b001739523f8c 6.6.0