diff --git a/README.md b/README.md
index 6aef9bece..c6b2d8455 100755
--- a/README.md
+++ b/README.md
@@ -167,6 +167,8 @@ See also: [Performance Test Guide](https://github.com/winlinvip/simple-rtmp-serv
 * nginx v1.5.0: 139524 lines <br/>
 
 ### History
+* v1.0, 2014-03-19, add vn/an for FFMPEG to drop video/audio for radio stream.
+* v1.0, 2014-03-19, refine handshake, client support coplex handshake, add utest.
 * v1.0, 2014-03-16, support ARM([debian armhf, v7cpu](https://github.com/winlinvip/simple-rtmp-server/wiki/SrsLinuxArm)) with rtmp/ssl/hls/librtmp.
 * v1.0, 2014-03-12, finish utest for amf0 codec.
 * v1.0, 2014-03-06, add gperftools for mem leak detect, mem/cpu profile.
diff --git a/trunk/conf/srs.conf b/trunk/conf/srs.conf
index 127566be9..0e4140af3 100755
--- a/trunk/conf/srs.conf
+++ b/trunk/conf/srs.conf
@@ -3,19 +3,4 @@
 
 listen              1935;
 vhost __defaultVhost__ {
-    transcode {
-        enabled     on;
-        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
-        engine vn {
-            enabled         on;
-            vcodec          vn;
-            acodec          libaacplus;
-            abitrate        45;
-            asample_rate    44100;
-            achannels       2;
-            aparams {
-            }
-            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
-        }
-    }
 }
diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 0d5f62ebe..a64bc09eb 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR "0"
 #define VERSION_MINOR "9"
-#define VERSION_REVISION "21" 
+#define VERSION_REVISION "22" 
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "srs"