diff --git a/.hgtags b/.hgtags
index 5a5c4aed44..edd2163f70 100644
--- a/.hgtags
+++ b/.hgtags
@@ -135,3 +135,4 @@ f8b50ad4cac4d4c4ecf48324b4f512f65e82cc1c go1.3beta1
 85518b1d6f8d6e16133b9ed2c9db6807522d37de go1.3.2
 f44017549ff9c3cc5eef74ebe7276cd0dfc066b6 go1.3.3
 f44017549ff9c3cc5eef74ebe7276cd0dfc066b6 release
+1fdfd7dfaedb1b7702141617e621ab7328a236a1 go1.4beta1