diff --git a/Changelog b/Changelog
index 923f49739..60fb2ed64 100644
--- a/Changelog
+++ b/Changelog
@@ -1,3 +1,14 @@
+version 1.2.2    2013-07-03
+
+- Audio resampler using swresample
+- Play speed control
+- Audio format
+- Play good with audio that noise before(mp3, ...)
+- init and deinit FFmpeg only when needed
+- Component id accessed by symbol
+- mms support
+
+
 version 1.2.1    2013-06-19
 
 - Configurable video quality
diff --git a/README.md b/README.md
index 8fa4ddd4f..94ab610ed 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ QtAV can meet your most demands
 - Aspect ratio
 - Transform video using GraphicsItemRenderer. (rotate, shear, etc)
 - Playing frame by frame (currently support forward playing)
+- Playing speed control. At any speed.
 - Variant streams: locale file, http, rtsp, etc.
 - Playing music (not perfect)
 - Volume control
diff --git a/src/QtAV/version.h b/src/QtAV/version.h
index 403ff979a..2ad068921 100644
--- a/src/QtAV/version.h
+++ b/src/QtAV/version.h
@@ -24,7 +24,7 @@
 
 #define QTAV_MAJOR 1	//((QTAV_VERSION&0xff0000)>>16)
 #define QTAV_MINOR 2	//((QTAV_VERSION&0xff00)>>8)
-#define QTAV_PATCH 1	//(QTAV_VERSION&0xff)
+#define QTAV_PATCH 2	//(QTAV_VERSION&0xff)
 
 
 #define QTAV_VERSION_MAJOR(V) ((V & 0xff0000) >> 16)
diff --git a/src/libQtAV.pri b/src/libQtAV.pri
index 4b79852db..15bee8cd1 100644
--- a/src/libQtAV.pri
+++ b/src/libQtAV.pri
@@ -49,7 +49,7 @@ NAME = QtAV
 #!isEmpty(LIBQTAV_PRI_INCLUDED):error("libQtAV.pri already included")
 eval(LIB$$upper($$NAME)_PRI_INCLUDED = 1)
 
-LIB_VERSION = 1.2.1 #0.x.y may be wrong for dll
+LIB_VERSION = 1.2.2 #0.x.y may be wrong for dll
 isEmpty(STATICLINK): STATICLINK = 0  #1 or 0. use static lib or not
 
 TEMPLATE += fakelib