diff --git a/HISTORY.md b/HISTORY.md
index 3d3c26b7..615bc346 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -4,6 +4,7 @@ Dev version
 * Add snax.gateserver, snax.loginserver, snax.msgserver
 * Simplify clientsocket lib
 * mongo driver support replica set
+* config file support read from ENV
 
 v0.4.2 (2014-7-14)
 -----------