diff --git a/.hgtags b/.hgtags
index b470643689..208a9ce9fe 100644
--- a/.hgtags
+++ b/.hgtags
@@ -5,3 +5,4 @@
 836d4865c124edda9132ce46eedf39031112930a 3.6.0
 ccee92d5cac85cd171a4190c106ca13e17cc077f 3.8.0
 d58ed0bed67cb50a6c576bf6abd582ecbb902d74 4.0.0
+25e9c457fd1097bb0898194632ef719ad1edd8e5 4.2.0