diff --git a/README.md b/README.md
index a0ee5eb6..e9169d35 100644
--- a/README.md
+++ b/README.md
@@ -28,9 +28,14 @@ Tencent QQ group: 309957875<br />
 - cross compiler
 
 # Change log
+2015-01-27<br />
+Support floating point LUA.<br />
+Use macro LUA_NUMBER_INTEGRAL in user_config.h control this feature.<br />
+build pre_build bin.
+
 2015-01-26<br />
 Applied sdk095_patch1 to sdk 0.9.5.<br />
-Added LUA examples and modules[by dvv](https://github.com/dvv). <br />
+Added LUA examples and modules [by dvv](https://github.com/dvv). <br />
 Added node.readvdd33() API [by alonewolfx2](https://github.com/alonewolfx2).<br />
 build pre_build bin.