diff --git a/.hgtags b/.hgtags
index 2278ce5950..15c2551e77 100644
--- a/.hgtags
+++ b/.hgtags
@@ -7,3 +7,4 @@ f72cb08228d56df2be724b462e5d9497dc700285 3.4.0
 8f644f057381856d5ab1834f34a981ff1b65fba3 3.6.0
 2918a530bb167f85c238e2dafe30ee6cf942ea70 3.8.0
 571f01b197f02ef5842c30e25e66515c9d1fa0c4 4.0.0
+e79c0e4b00b8455533c2992369e0ad78ce2fb4e0 4.2.0