update readme.

@@ -207,6 +207,8 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v1.0, 2014-07-05, fix [#81](https://github.com/winlinvip/simple-rtmp-server/issues/81), support all aac sample rate. 0.9.150.
+* v1.0, 2014-07-05, complete kernel utest. 0.9.149
 * v1.0, 2014-06-30, fix [#111](https://github.com/winlinvip/simple-rtmp-server/issues/111), always use 31bits timestamp. 0.9.143.
 * v1.0, 2014-06-28, response the call message with null. 0.9.137
 * v1.0, 2014-06-28, fix [#110](https://github.com/winlinvip/simple-rtmp-server/issues/110), thread start segment fault, thread cycle stop destroy thread. 0.9.136