diff --git a/README.md b/README.md
index 234caeeb..9c2a6264 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,10 @@ Tencent QQ group QQ群: 309957875<br />
 # Change log
 2014-12-30<br />
 modify uart.on api, when run_input set to 0, uart.on now can read raw data from uart.<br />
-serial input now accept non-ascii chars
+serial input now accept non-ascii chars.<br />
+fix dev-kit gpio map.<br />
+add setip, setmac, sleeptype api to wifi module. <br />
+add tmr.time() api to get rtc time and calibration.
 
 [more change log](https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en#change_log)<br />
 [更多变更日志](https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_cn#change_log)
diff --git a/app/modules/wifi.c b/app/modules/wifi.c
index f3b43912..30e266f7 100644
--- a/app/modules/wifi.c
+++ b/app/modules/wifi.c
@@ -194,7 +194,7 @@ static int ICACHE_FLASH_ATTR wifi_getip( lua_State* L, uint8_t mode )
 
 static uint32_t parse_key(lua_State* L, const char * key){
   lua_getfield(L, 1, key);
-  if( lua_isstring(L, -1) )   // deal with the ssid string
+  if( lua_isstring(L, -1) )   // deal with the ip/netmask/gw string
   {
     const char *ip = luaL_checkstring( L, -1 );
     return ipaddr_addr(ip);
diff --git a/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin b/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin
index 69f33a9c..c546e899 100644
Binary files a/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin and b/pre_build/0.9.4/512k-flash/nodemcu_512k_latest.bin differ
diff --git a/pre_build/latest/nodemcu_512k_latest.bin b/pre_build/latest/nodemcu_512k_latest.bin
index 69f33a9c..c546e899 100644
Binary files a/pre_build/latest/nodemcu_512k_latest.bin and b/pre_build/latest/nodemcu_512k_latest.bin differ