diff --git a/.hgtags b/.hgtags
index f6f4a468dd..2cf787f655 100644
--- a/.hgtags
+++ b/.hgtags
@@ -3,3 +3,4 @@
 96118825d91dfa186e344ad464592145bdbdbc03 3.6.0
 234e6dd84adc0e12d1bd4424ac95ea3c53bd8e41 3.8.0
 d753906e57e00e17b3dc46723bc84c51dcac4312 4.0.0
+56504fa2f4fec8ca7e36135be82c93e307e9dde0 4.2.0