diff --git a/.hgtags b/.hgtags
index c01bbab..5d4e4e9 100644
--- a/.hgtags
+++ b/.hgtags
@@ -1,2 +1,3 @@
 a88b5a87fb4cd49f16ce72062cce19d55f1fbf98 0.2
 a7f90c18859d31922bdd8c61299e2790f5e2eb1a 0.3
+bdf8b3f414c4d08fc0edf9fd1953f55db26e4bac 0.4