diff --git a/QNDroidRTCDemo/app/build.gradle b/QNDroidRTCDemo/app/build.gradle
index 51f5a3c..e187162 100644
--- a/QNDroidRTCDemo/app/build.gradle
+++ b/QNDroidRTCDemo/app/build.gradle
@@ -6,8 +6,8 @@ android {
         applicationId "com.qiniu.droid.rtc.demo"
         minSdkVersion 18
         targetSdkVersion 30
-        versionCode 32
-        versionName "4.0.0"
+        versionCode 33
+        versionName "4.0.1"
         buildConfigField "long", "BUILD_TIMESTAMP", System.currentTimeMillis() + "L"
     }
 
diff --git a/QNDroidRTCDemo/app/libs/qndroid-rtc-4.0.0.jar b/QNDroidRTCDemo/app/libs/qndroid-rtc-4.0.1.jar
similarity index 69%
rename from QNDroidRTCDemo/app/libs/qndroid-rtc-4.0.0.jar
rename to QNDroidRTCDemo/app/libs/qndroid-rtc-4.0.1.jar
index 38b3ebf..f00d7aa 100644
Binary files a/QNDroidRTCDemo/app/libs/qndroid-rtc-4.0.0.jar and b/QNDroidRTCDemo/app/libs/qndroid-rtc-4.0.1.jar differ
diff --git a/QNDroidRTCDemo/app/src/main/java/com/qiniu/droid/rtc/demo/activity/RoomActivity.java b/QNDroidRTCDemo/app/src/main/java/com/qiniu/droid/rtc/demo/activity/RoomActivity.java
index b14e25b..436be3a 100644
--- a/QNDroidRTCDemo/app/src/main/java/com/qiniu/droid/rtc/demo/activity/RoomActivity.java
+++ b/QNDroidRTCDemo/app/src/main/java/com/qiniu/droid/rtc/demo/activity/RoomActivity.java
@@ -51,6 +51,7 @@
 import com.qiniu.droid.rtc.QNLiveStreamingErrorInfo;
 import com.qiniu.droid.rtc.QNLiveStreamingListener;
 import com.qiniu.droid.rtc.QNLocalTrack;
+import com.qiniu.droid.rtc.QNMediaRelayState;
 import com.qiniu.droid.rtc.QNMicrophoneAudioTrack;
 import com.qiniu.droid.rtc.QNMicrophoneAudioTrackConfig;
 import com.qiniu.droid.rtc.QNNetworkQuality;
@@ -899,7 +900,7 @@ public void onAudioRouteChanged(QNAudioDevice device) {
          */
         @Override
         public void onConnectionStateChanged(QNConnectionState state, @Nullable QNConnectionDisconnectedInfo info) {
-            Log.i(TAG, "onRoomStateChanged:" + state.name());
+            Log.i(TAG, "onConnectionStateChanged:" + state.name());
             switch (state) {
                 case DISCONNECTED:
                     /**
@@ -1115,6 +1116,11 @@ public void onMessageReceived(QNCustomMessage message) {
                 finish();
             }
         }
+
+        @Override
+        public void onMediaRelayStateChanged(String relayRoom, QNMediaRelayState state) {
+
+        }
     };
 
     private final QNCameraEventListener mCameraEventListener = new QNCameraEventListener() {
diff --git a/QNDroidRTCDemo/app/src/main/jniLibs/x86/libqndroid_rtc.so b/QNDroidRTCDemo/app/src/main/jniLibs/x86/libqndroid_rtc.so
new file mode 100755
index 0000000..6940e1f
Binary files /dev/null and b/QNDroidRTCDemo/app/src/main/jniLibs/x86/libqndroid_rtc.so differ
diff --git a/ReleaseNotes/release-notes-4.0.1.md b/ReleaseNotes/release-notes-4.0.1.md
new file mode 100644
index 0000000..04f57c1
--- /dev/null
+++ b/ReleaseNotes/release-notes-4.0.1.md
@@ -0,0 +1,23 @@
+# QNDroidRTC Release Notes for 4.0.1
+
+## 简介
+
+QNDroidRTC 是七牛推出的一款适用于 Android 平台的音视频通话 SDK，提供了包括美颜、滤镜、音视频通话等多种功能，提供灵活的接口，支持高度定制以及二次开发。
+
+## 版本
+
+- 发布 qndroid-rtc-4.0.1.jar
+
+## 功能
+
+- 新增场景和角色设置，详见 QNRTC.createClient, QNRTCClient.setClientRole
+- 跨房媒体转发功能，详见 QNRTCClient.(start/update/stop)MediaRelay
+- 麦克风被占用时提供检测方法或错误回调
+
+## 缺陷
+
+- 修复断网时统计信息依然回调质量正常的问题
+
+## 问题反馈
+
+当你遇到任何问题时，可以通过在 GitHub 的 repo 提交 `issues` 来反馈问题，请尽可能的描述清楚遇到的问题，如果有错误信息也一同附带，并且在 ```Labels``` 中指明类型为 bug 或者其他。 [通过这里查看已有的 issues 和提交 bug](https://github.com/pili-engineering/QNRTC-Android/issues)
diff --git a/releases/qndroid-rtc-4.0.0.jar b/releases/qndroid-rtc-4.0.1.jar
similarity index 69%
rename from releases/qndroid-rtc-4.0.0.jar
rename to releases/qndroid-rtc-4.0.1.jar
index 38b3ebf..f00d7aa 100644
Binary files a/releases/qndroid-rtc-4.0.0.jar and b/releases/qndroid-rtc-4.0.1.jar differ