diff --git a/.hgtags b/.hgtags
index c61b56ce25..fd2dc37c57 100644
--- a/.hgtags
+++ b/.hgtags
@@ -10,3 +10,4 @@ e9e97675f25f872ae8a32a8cff87a302415ddaa5 3.4.0
 e81401e10f26c84a54fd2e05dfa8630463cf304e 3.6.0
 4a780ebc9d8c19c5047839198c8dd90fa2ecc550 3.8.0
 4736f1e43b2cf7beec4e66961b754f3612f83b2d 4.0.0
+6b0f540e4c3e8c6a5855ede8e36a5f9723517584 4.2.0