diff --git a/.hgtags b/.hgtags
index 638d232669..418b6a908d 100644
--- a/.hgtags
+++ b/.hgtags
@@ -12,3 +12,4 @@ be073cc040e1ea0eabf77e09eaa8c8c97062e3ab 2.6.0
 4cc1c43b9fd4e7af11bc81cd24b3f1c66438f6f9 2.6.3
 e7a41fd00879571f1c836d527c3190e5ec61233e 2.6.4
 e55fede585699bc4fbfa392a61f11a09104cf040 2.6.5
+f6b7f44b5c138c1a881c41e1c93ddcb265003710 2.6.6