diff --git a/.hgtags b/.hgtags
index 0f4c41ed0..254328130 100644
--- a/.hgtags
+++ b/.hgtags
@@ -3,3 +3,4 @@ d3a37950495c55c255699400edd5930538cbacb4 milestone_3
 8227ce764d491a942389f7a9f654f69d2701cb12 milestone_4
 bda291e79a4f4cd282b67552e56dad9935bd4018 mileston_4_1
 0000000000000000000000000000000000000000 mileston_4_1
+77f4aaa4e4bdc46a0ca1b84afaa33c72db650f95 milestone_4_1