diff --git a/dita/RTC-NG/API/api_imusiccontentcenter_destroymusicplayer.dita b/dita/RTC-NG/API/api_imusiccontentcenter_destroymusicplayer.dita
index 0e432f4d9b9..0608350b194 100644
--- a/dita/RTC-NG/API/api_imusiccontentcenter_destroymusicplayer.dita
+++ b/dita/RTC-NG/API/api_imusiccontentcenter_destroymusicplayer.dita
@@ -44,9 +44,9 @@
             <parml>
             <plentry>
                 <pt props="android">player</pt>
-                <pt props="apple">musicPlayer</pt>
-                <pt props="cpp">music_player</pt>
-                <pd props="apple android"><xref keyref="IMusicPlayer"/> 对象。</pd>
+                <pt props="apple rn electron flutter">musicPlayer</pt>
+                <pt props="cpp unreal unity cs bp">music_player</pt>
+                <pd props="apple android framework"><xref keyref="IMusicPlayer"/> 对象。</pd>
                 <pd props="cpp">指向 <xref keyref="IMusicPlayer"/> 对象的指针。</pd>
             </plentry>
             </parml> </section>
diff --git a/dita/RTC-NG/API/callback_irtcengineeventhandler_onjoinchannelsuccess.dita b/dita/RTC-NG/API/callback_irtcengineeventhandler_onjoinchannelsuccess.dita
index c3c361dbecc..1ec204944f9 100644
--- a/dita/RTC-NG/API/callback_irtcengineeventhandler_onjoinchannelsuccess.dita
+++ b/dita/RTC-NG/API/callback_irtcengineeventhandler_onjoinchannelsuccess.dita
@@ -37,7 +37,8 @@
         </section>
         <section id="timing" deliveryTarget="details">
             <title>触发时机</title>
-            <p props="android cpp cs apple unity unreal">当你调用 <xref keyref="joinChannel1"/>、<xref keyref="joinChannel2"/>、<xref keyref="joinChannelWithUserAccount1"/>、<xref keyref="joinChannelWithUserAccount2"/>、 <xref keyref="joinChannelEx"/> 或 <xref keyref="joinChannelWithUserAccountEx"/> 方法成功加入频道后，SDK 会触发该回调。</p>
+            <p props="android cpp cs apple unreal">当你调用 <xref keyref="joinChannel1"/>、<xref keyref="joinChannel2"/>、<xref keyref="joinChannelWithUserAccount1"/>、<xref keyref="joinChannelWithUserAccount2"/>、 <xref keyref="joinChannelEx"/> 或 <xref keyref="joinChannelWithUserAccountEx"/> 方法成功加入频道后，SDK 会触发该回调。</p>
+            <p props="unity">当你调用 <xref keyref="joinChannel1"/>、<xref keyref="joinChannel2"/>、<xref keyref="joinChannelWithUserAccount1"/>、<xref keyref="joinChannelWithUserAccount2"/>、 <xref keyref="joinChannelEx"/> 方法成功加入频道后，SDK 会触发该回调。</p>
             <p props="bp electron flutter rn">当你调用 <xref keyref="joinChannel2"/>、<xref keyref="joinChannelWithUserAccount2"/>、 <xref keyref="joinChannelEx"/> 或 <xref keyref="joinChannelWithUserAccountEx"/> 方法成功加入频道后，SDK 会触发该回调。</p>
             <p props="hmos">当你调用 <xref keyref="joinChannel1"/>、<xref keyref="joinChannel2"/> 或 <xref keyref="joinChannelEx"/> 方法成功加入频道后，SDK 会触发该回调。</p>
         </section>
@@ -70,4 +71,4 @@
             </plentry>
             </parml> </section>
     </refbody>
-</reference>
\ No newline at end of file
+</reference>
diff --git a/dita/RTC-NG/API/class_externalvideoframe.dita b/dita/RTC-NG/API/class_externalvideoframe.dita
index 94f1aa6e60e..ec7f0b97862 100644
--- a/dita/RTC-NG/API/class_externalvideoframe.dita
+++ b/dita/RTC-NG/API/class_externalvideoframe.dita
@@ -175,7 +175,8 @@
         public EGL_CONTEXT_TYPE eglType;
         public int textureId;
         public byte[] metadata_buffer;
-        public int metadata_size;
+        public int metadataSize;
+        public byte[] alphaBuffer;
         public bool fillAlphaBuffer;
         public ALPHA_STITCH_MODE alphaStitchMode;
         public IntPtr d3d11_texture_2d;
@@ -431,8 +432,8 @@ class ExternalVideoFrame {
                 <pd>该参数仅适用于 Texture 格式的视频数据。指 MetaData 的数据缓冲区，默认值为 <codeph>NULL</codeph>。</pd>
             </plentry>
             <plentry props="cpp unreal bp unity electron rn cs flutter">
-                <pt props="bp unity electron rn cs">metadata_size</pt>
-                <pt props="cpp unreal flutter">metadataSize</pt>
+                <pt props="bp electron rn cs">metadata_size</pt>
+                <pt props="cpp unity unreal flutter">metadataSize</pt>
                 <pd>该参数仅适用于 Texture 格式的视频数据。指 MetaData 的大小，默认值为 <codeph>0</codeph>。</pd>
             </plentry>
             <plentry conkeyref="VideoFrame/d3d" props="cpp unity electron">
@@ -440,16 +441,16 @@ class ExternalVideoFrame {
                 <pd/>
             </plentry>
             <plentry id="alphabuffer">
-                <pt props="cpp android">alphaBuffer</pt>
+                <pt props="cpp android framework">alphaBuffer</pt>
                 <pt props="apple">alphaBuf</pt>
                 <pd>
                   <p>采用人像分割算法输出的 Alpha 通道数据。该数据跟视频帧的尺寸一致，每个像素点的取值范围为 [0,255]，其中 0 代表背景；255 代表前景（人像）。</p>
                   <p>你可以通过设置该参数，实现将视频背景自渲染为各种效果，例如：透明、纯色、图片、视频等。</p>
-                  <note type="attention" props="android">在自定义视频渲染场景下，需确保传入的视频帧和 <parmname>alphaBuffer</parmname> 均为 Full Range 类型；其他类型可能导致 Alpha 数据渲染不正常。</note>
+                  <note type="attention" props="android apple framework">在自定义视频渲染场景下，需确保传入的视频帧和 <parmname>alphaBuffer</parmname> 均为 Full Range 类型；其他类型可能导致 Alpha 数据渲染不正常。</note>
                 </pd>
               </plentry>
               <plentry>
-                <pt props="cpp">fillAlphaBuffer</pt>
+                <pt props="cpp framework">fillAlphaBuffer</pt>
                 <pt props="android apple">fillAlphaData</pt>
                 <pd>该参数仅适用于 BGRA 或 RGBA 格式的视频数据。设置是否提取视频帧中的 Alpha 通道数据并自动填入到 <parmname>alphaBuffer</parmname> 中：
                   <ul>
diff --git a/dita/RTC-NG/API/class_videoframe.dita b/dita/RTC-NG/API/class_videoframe.dita
index 6d7d692fa5b..1c315ee841b 100644
--- a/dita/RTC-NG/API/class_videoframe.dita
+++ b/dita/RTC-NG/API/class_videoframe.dita
@@ -466,6 +466,8 @@ struct FVideoFrame {
 
         public int textureId;
 
+        public IntPtr d3d11Texture2d;
+
         public float[] matrix;
 
         public byte[] alphaBuffer;
@@ -743,17 +745,17 @@ class VideoFrame {
           <pd>单个像素的宽高比，即每个像素宽度与高度的比值。</pd>
         </plentry>
         <plentry id="alphabuffer">
-          <pt props="cpp android">alphaBuffer</pt>
+          <pt props="cpp android framework">alphaBuffer</pt>
           <pt props="apple">alphaBuf</pt>
           <pd>
             <p>采用人像分割算法输出的 Alpha 通道数据。该数据跟视频帧的尺寸一致，每个像素点的取值范围为 [0,255]，其中 0 代表背景；255 代表前景（人像）。</p>
             <p>你可以通过设置该参数，实现将视频背景自渲染为各种效果，例如：透明、纯色、图片、视频等。</p>
-            <note type="attention" props="android apple">在自定义视频渲染场景下，需确保传入的视频帧和 <parmname>alphaBuffer</parmname> 均为 Full Range 类型；其他类型可能导致 Alpha 数据渲染不正常。</note>
+            <note type="attention" props="android framework">在自定义视频渲染场景下，需确保传入的视频帧和 <parmname>alphaBuffer</parmname> 均为 Full Range 类型；其他类型可能导致 Alpha 数据渲染不正常。</note>
           </pd>
         </plentry>
       <plentry id="alphastitchmode">
         <pt>alphaStitchMode</pt>
-        <pd>当视频帧中包含 Alpha 通道数据时，设置 <parmname>alphaBuffer</parmname> 和视频帧的相对位置。<ph props="cpp apple">详见 <xref keyref="ALPHA_STITCH_MODE"/>。</ph>
+        <pd>当视频帧中包含 Alpha 通道数据时，设置 <parmname>alphaBuffer</parmname> 和视频帧的相对位置。<ph props="cpp apple framework">详见 <xref keyref="ALPHA_STITCH_MODE"/>。</ph>
           <ul props="android">
             <li><ph keyref="NO_ALPHA_STITCH"/> (0)：（默认）仅视频帧，即  <parmname>alphaBuffer</parmname> 不和视频帧拼接。</li>
             <li><ph keyref="ALPHA_STITCH_UP"/> (1)：<parmname>alphaBuffer</parmname> 位于视频帧的上方。</li>
diff --git a/dita/RTC-NG/API/rtc_api_data_type.dita b/dita/RTC-NG/API/rtc_api_data_type.dita
index dd9885ddf79..6881a5dc29b 100644
--- a/dita/RTC-NG/API/rtc_api_data_type.dita
+++ b/dita/RTC-NG/API/rtc_api_data_type.dita
@@ -1628,6 +1628,7 @@
             <li><xref keyref="VOICE_CONVERSION_PRESET"/></li>
             </ul>
             <ul props="unity">
+            <li><xref keyref="ALPHA_STITCH_MODE"/></li>
             <li><xref keyref="AREA_CODE"/></li>
             <li><xref keyref="AUDIENCE_LATENCY_LEVEL_TYPE"/></li>
             <li><xref keyref="AUDIO_AINS_MODE"/></li>
diff --git a/dita/RTC-NG/RTC_NG_API_Unity.ditamap b/dita/RTC-NG/RTC_NG_API_Unity.ditamap
index 72df50ef684..d49f50f0632 100644
--- a/dita/RTC-NG/RTC_NG_API_Unity.ditamap
+++ b/dita/RTC-NG/RTC_NG_API_Unity.ditamap
@@ -449,7 +449,6 @@
                 <topicref href="API/toc_mediaplayer_open.dita" chunk="to-content">
                     <topicref keyref="open" toc="no"/>
                     <topicref keyref="open2" toc="no" processing-role="resource-only"/>
-                    <topicref keyref="openWithCustomSource" toc="no"/>
                     <topicref keyref="openWithMediaSource" toc="no"/>
                     <topicref keyref="preloadSrc" toc="no"/>
                     <topicref keyref="switchSrc" toc="no"/>
@@ -745,8 +744,6 @@
             <topicref keyref="sendCustomReportMessageEx" toc="no"/>
             <topicref keyref="setAVSyncSource" toc="no" props="cn"/>
             <topicref keyref="setCloudProxy" toc="no"/>
-            <topicref keyref="setEncryptionMode" toc="no"/>
-            <topicref keyref="setEncryptionSecret" toc="no"/>
             <topicref keyref="setLocalAccessPoint" toc="no" props="cn"/>
             <topicref keyref="setLogFile" toc="no"/>
             <topicref keyref="setLogFileSize" toc="no"/>
@@ -755,8 +752,6 @@
             <topicref keyref="setParameters" toc="no"/>
             <topicref keyref="setParameters_IAgoraParameter" toc="no"/>
             <topicref keyref="setRemoteSubscribeFallbackOption" toc="no"/>
-            <topicref keyref="startEchoTest1" toc="no"/>
-            <topicref keyref="startEchoTest2" toc="no"/>
             <topicref keyref="startEchoTest3" toc="no"/>
             <topicref keyref="startLastmileProbeTest" toc="no"/>
             <topicref keyref="stopEchoTest" toc="no"/>
diff --git a/dita/RTC-NG/config/keys-rtc-ng-api-unity.ditamap b/dita/RTC-NG/config/keys-rtc-ng-api-unity.ditamap
index 9114762b7f2..ed42ad309ba 100644
--- a/dita/RTC-NG/config/keys-rtc-ng-api-unity.ditamap
+++ b/dita/RTC-NG/config/keys-rtc-ng-api-unity.ditamap
@@ -797,13 +797,7 @@
                     </keywords>
                 </topicmeta>
             </keydef>
-            <keydef keys="openWithCustomSource" href="../API/api_imediaplayer_openwithcustomsource.dita">
-                <topicmeta>
-                    <keywords>
-                        <keyword>OpenWithCustomSource</keyword>
-                    </keywords>
-                </topicmeta>
-            </keydef>
+
             <keydef keys="openWithAgoraCDNSrc" href="../API/api_imediaplayer_openwithagoracdnsrc.dita" props="hide">
                 <topicmeta>
                     <keywords>
@@ -2464,24 +2458,10 @@
             </keydef>
         </topichead>
         <topichead navtitle="通话前网络测试">
-            <keydef keys="startEchoTest1" href="../API/api_irtcengine_startechotest.dita">
-                <topicmeta>
-                    <keywords>
-                        <keyword>StartEchoTest [1/3]</keyword>
-                    </keywords>
-                </topicmeta>
-            </keydef>
-            <keydef keys="startEchoTest2" href="../API/api_irtcengine_startechotest2.dita">
-                <topicmeta>
-                    <keywords>
-                        <keyword>StartEchoTest [2/3]</keyword>
-                    </keywords>
-                </topicmeta>
-            </keydef>
             <keydef keys="startEchoTest3" href="../API/api_irtcengine_startechotest3.dita">
                 <topicmeta>
                     <keywords>
-                        <keyword>StartEchoTest [3/3]</keyword>
+                        <keyword>StartEchoTest</keyword>
                     </keywords>
                 </topicmeta>
             </keydef>
@@ -2767,28 +2747,28 @@
                     </keywords>
                 </topicmeta>
             </keydef>
-            <keydef keys="OnExtensionEventWithContext" href="../API/callback_irtcengineeventhandler_onextensioneventwithcontext.dita">
+            <keydef keys="onExtensionEventWithContext" href="../API/callback_irtcengineeventhandler_onextensioneventwithcontext.dita">
                 <topicmeta>
                     <keywords>
                         <keyword>OnExtensionEventWithContext</keyword>
                     </keywords>
                 </topicmeta>
             </keydef>
-            <keydef keys="OnExtensionStartedWithContext" href="../API/callback_irtcengineeventhandler_onextensionstartedwithcontext.dita">
+            <keydef keys="onExtensionStartedWithContext" href="../API/callback_irtcengineeventhandler_onextensionstartedwithcontext.dita">
                 <topicmeta>
                     <keywords>
                         <keyword>OnExtensionStartedWithContext</keyword>
                     </keywords>
                 </topicmeta>
             </keydef>
-            <keydef keys="OnExtensionStoppedWithContext" href="../API/callback_irtcengineeventhandler_onextensionstoppedwithcontext.dita">
+            <keydef keys="onExtensionStoppedWithContext" href="../API/callback_irtcengineeventhandler_onextensionstoppedwithcontext.dita">
                 <topicmeta>
                     <keywords>
                         <keyword>OnExtensionStoppedWithContext</keyword>
                     </keywords>
                 </topicmeta>
             </keydef>
-            <keydef keys="OnExtensionErrorWithContext" href="../API/callback_irtcengineeventhandler_onextensionerrorwithcontext.dita">
+            <keydef keys="onExtensionErrorWithContext" href="../API/callback_irtcengineeventhandler_onextensionerrorwithcontext.dita">
                 <topicmeta>
                     <keywords>
                         <keyword>OnExtensionErrorWithContext</keyword>
@@ -2889,20 +2869,6 @@
                     </keywords>
                 </topicmeta>
             </keydef>
-            <keydef keys="setEncryptionMode" href="../API/api_irtcengine_setencryptionmode.dita">
-                <topicmeta>
-                    <keywords>
-                        <keyword>SetEncryptionMode</keyword>
-                    </keywords>
-                </topicmeta>
-            </keydef>
-            <keydef keys="setEncryptionSecret" href="../API/api_irtcengine_setencryptionsecret.dita">
-                <topicmeta>
-                    <keywords>
-                        <keyword>SetEncryptionSecret</keyword>
-                    </keywords>
-                </topicmeta>
-            </keydef>
         </topichead>
         <topichead navtitle="音频采集">
             <keydef keys="startAudioRecording1" href="../API/api_irtcengine_startaudiorecording.dita">
@@ -5050,6 +5016,13 @@
                     <keyword>ExternalVideoFrame</keyword>
                 </keywords>
             </topicmeta>
+        </keydef>
+        <keydef keys="ExtensionContext" href="../API/class_extensioncontext.dita">
+            <topicmeta>
+                <keywords>
+                    <keyword>ExtensionContext</keyword>
+                </keywords>
+            </topicmeta>
         </keydef>
          <keydef keys="FocalLengthInfo" href="../API/class_focallengthinfo.dita">
             <topicmeta>
@@ -5566,6 +5539,48 @@
         </keydef>
     </topichead>
     <topichead navtitle="Enums">
+        <keydef keys="ALPHA_STITCH_MODE" href="../API/enum_alphastitchmode.dita">
+            <topicmeta>
+                <keywords>
+                    <keyword>ALPHA_STITCH_MODE</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="NO_ALPHA_STITCH">
+            <topicmeta>
+                <keywords>
+                    <keyword>NO_ALPHA_STITCH</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="ALPHA_STITCH_UP">
+            <topicmeta>
+                <keywords>
+                    <keyword>ALPHA_STITCH_UP</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="ALPHA_STITCH_BELOW">
+            <topicmeta>
+                <keywords>
+                    <keyword>ALPHA_STITCH_BELOW</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="ALPHA_STITCH_LEFT">
+            <topicmeta>
+                <keywords>
+                    <keyword>ALPHA_STITCH_LEFT</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
+        <keydef keys="ALPHA_STITCH_RIGHT">
+            <topicmeta>
+                <keywords>
+                    <keyword>ALPHA_STITCH_RIGHT</keyword>
+                </keywords>
+            </topicmeta>
+        </keydef>
         <keydef keys="AREA_CODE" href="../API/enum_areacode.dita">
             <topicmeta>
                 <keywords>