diff --git a/CHANGELOG b/CHANGELOG
index 4d58d944e0..25d4f2d170 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -26,6 +26,7 @@ cocos2d-x-3.2  ???
     [FIX]           Node: state of _transformUpdated, _transformDirty and _inverseDirty are wrong in setParent()
     [FIX]           Node: _orderOfArrival is set to 0 after visit
     [FIX]           Other: link error with Xcode 6 when building with 32-bit architecture
+    [FIX]           RenderTexture: saveToFile() lost alpha channel
     [FIX]           Repeat: will run one more over in rare situations
     [FIX]           Scale9Sprite: support culling
     [FIX]           Schedule: schedulePerFrame() can not be called twice
diff --git a/cocos/2d/CCNode.h b/cocos/2d/CCNode.h
index 84d0973693..cfac0a194f 100644
--- a/cocos/2d/CCNode.h
+++ b/cocos/2d/CCNode.h
@@ -1529,7 +1529,7 @@ public:
     virtual void setOpacityModifyRGB(bool bValue) override { return Node::setOpacityModifyRGB(bValue); }
     virtual bool isOpacityModifyRGB() const override { return Node::isOpacityModifyRGB(); }
 
-protected:
+CC_CONSTRUCTOR_ACCESS:
     __NodeRGBA();
     virtual ~__NodeRGBA() {}
 
diff --git a/cocos/2d/CCRenderTexture.cpp b/cocos/2d/CCRenderTexture.cpp
index f8d08d3185..7738341537 100644
--- a/cocos/2d/CCRenderTexture.cpp
+++ b/cocos/2d/CCRenderTexture.cpp
@@ -409,29 +409,47 @@ void RenderTexture::visit(Renderer *renderer, const Mat4 &parentTransform, uint3
     _orderOfArrival = 0;
 }
 
-bool RenderTexture::saveToFile(const std::string& filename)
+bool RenderTexture::saveToFile(const std::string& filename, bool isRGBA)
 {
-    return saveToFile(filename,Image::Format::JPG);
+    std::string basename(filename);
+    std::transform(basename.begin(), basename.end(), basename.begin(), ::tolower);
+    
+    if (basename.find(".png") != std::string::npos)
+    {
+        return saveToFile(filename, Image::Format::PNG, isRGBA);
+    }
+    else if (basename.find(".jpg") != std::string::npos)
+    {
+        if (isRGBA) CCLOG("RGBA is not supported for JPG format.");
+        return saveToFile(filename, Image::Format::JPG, false);
+    }
+    else
+    {
+        CCLOG("Only PNG and JPG format are supported now!");
+    }
+    
+    return saveToFile(filename, Image::Format::JPG, false);
 }
-bool RenderTexture::saveToFile(const std::string& fileName, Image::Format format)
+bool RenderTexture::saveToFile(const std::string& fileName, Image::Format format, bool isRGBA)
 {
     CCASSERT(format == Image::Format::JPG || format == Image::Format::PNG,
              "the image can only be saved as JPG or PNG format");
+    if (isRGBA && format == Image::Format::JPG) CCLOG("RGBA is not supported for JPG format");
     
     std::string fullpath = FileUtils::getInstance()->getWritablePath() + fileName;
     _saveToFileCommand.init(_globalZOrder);
-    _saveToFileCommand.func = CC_CALLBACK_0(RenderTexture::onSaveToFile,this,fullpath);
+    _saveToFileCommand.func = CC_CALLBACK_0(RenderTexture::onSaveToFile, this, fullpath, isRGBA);
     
     Director::getInstance()->getRenderer()->addCommand(&_saveToFileCommand);
     return true;
 }
 
-void RenderTexture::onSaveToFile(const std::string& filename)
+void RenderTexture::onSaveToFile(const std::string& filename, bool isRGBA)
 {
     Image *image = newImage(true);
     if (image)
     {
-        image->saveToFile(filename.c_str(), true);
+        image->saveToFile(filename.c_str(), !isRGBA);
     }
 
     CC_SAFE_DELETE(image);
diff --git a/cocos/2d/CCRenderTexture.h b/cocos/2d/CCRenderTexture.h
index 09ba451df7..187acc18b3 100644
--- a/cocos/2d/CCRenderTexture.h
+++ b/cocos/2d/CCRenderTexture.h
@@ -103,12 +103,12 @@ public:
     /** saves the texture into a file using JPEG format. The file will be saved in the Documents folder.
         Returns true if the operation is successful.
      */
-    bool saveToFile(const std::string& filename);
+    bool saveToFile(const std::string& filename, bool isRGBA = true);
 
     /** saves the texture into a file. The format could be JPG or PNG. The file will be saved in the Documents folder.
         Returns true if the operation is successful.
      */
-    bool saveToFile(const std::string& filename, Image::Format format);
+    bool saveToFile(const std::string& filename, Image::Format format, bool isRGBA = true);
     
     /** Listen "come to background" message, and save render texture.
      It only has effect on Android.
@@ -222,7 +222,7 @@ protected:
     void onClear();
     void onClearDepth();
 
-    void onSaveToFile(const std::string& fileName);
+    void onSaveToFile(const std::string& fileName, bool isRGBA = true);
     
     Mat4 _oldTransMatrix, _oldProjMatrix;
     Mat4 _transformMatrix, _projectionMatrix;
diff --git a/cocos/platform/ios/CCImage.mm b/cocos/platform/ios/CCImage.mm
index 71ebce91a2..ab288f8f65 100644
--- a/cocos/platform/ios/CCImage.mm
+++ b/cocos/platform/ios/CCImage.mm
@@ -42,7 +42,9 @@ bool cocos2d::Image::saveToFile(const std::string& filename, bool isToRGB)
     bool saveToPNG = false;
     bool needToCopyPixels = false;
 
-    if (std::string::npos != filename.find(".png"))
+    std::string basename(filename);
+    std::transform(basename.begin(), basename.end(), basename.begin(), ::tolower);
+    if (std::string::npos != basename.find(".png"))
     {
         saveToPNG = true;
     }
diff --git a/cocos/renderer/ccGLStateCache.cpp b/cocos/renderer/ccGLStateCache.cpp
index 33b85c9b7a..4a73ffeeac 100644
--- a/cocos/renderer/ccGLStateCache.cpp
+++ b/cocos/renderer/ccGLStateCache.cpp
@@ -164,22 +164,25 @@ void bindTexture2DN(GLuint textureUnit, GLuint textureId)
 
 
 void deleteTexture(GLuint textureId)
-{
-    deleteTextureN(0, textureId);
-}
-
-void deleteTextureN(GLuint textureUnit, GLuint textureId)
 {
 #if CC_ENABLE_GL_STATE_CACHE
-	if (s_currentBoundTexture[textureUnit] == textureId)
+    for (size_t i = 0; i < MAX_ACTIVE_TEXTURE; ++i)
     {
-		s_currentBoundTexture[textureUnit] = -1;
+        if (s_currentBoundTexture[i] == textureId)
+        {
+            s_currentBoundTexture[i] = -1;
+        }
     }
 #endif // CC_ENABLE_GL_STATE_CACHE
     
 	glDeleteTextures(1, &textureId);
 }
 
+void deleteTextureN(GLuint textureUnit, GLuint textureId)
+{
+    deleteTexture(textureId);
+}
+
 void activeTexture(GLenum texture)
 {
 #if CC_ENABLE_GL_STATE_CACHE
diff --git a/cocos/renderer/ccGLStateCache.h b/cocos/renderer/ccGLStateCache.h
index 9c1047c922..5c3b32ca0a 100644
--- a/cocos/renderer/ccGLStateCache.h
+++ b/cocos/renderer/ccGLStateCache.h
@@ -129,7 +129,7 @@ void CC_DLL deleteTexture(GLuint textureId);
  If CC_ENABLE_GL_STATE_CACHE is disabled, it will call glDeleteTextures() directly.
  @since v2.1.0
  */
-void CC_DLL deleteTextureN(GLuint textureUnit, GLuint textureId);
+CC_DEPRECATED_ATTRIBUTE void CC_DLL deleteTextureN(GLuint textureUnit, GLuint textureId);
 
 /** Select active texture unit.
  If CC_ENABLE_GL_STATE_CACHE is disabled, it will call glActiveTexture() directly.
diff --git a/cocos/scripting/lua-bindings/auto/api/RenderTexture.lua b/cocos/scripting/lua-bindings/auto/api/RenderTexture.lua
index 1a072caad4..8542858754 100644
--- a/cocos/scripting/lua-bindings/auto/api/RenderTexture.lua
+++ b/cocos/scripting/lua-bindings/auto/api/RenderTexture.lua
@@ -64,14 +64,15 @@
 -- @param self
         
 --------------------------------
--- overload function: saveToFile(string, cc.Image::Format)
+-- overload function: saveToFile(string, cc.Image::Format, bool)
 --          
--- overload function: saveToFile(string)
+-- overload function: saveToFile(string, bool)
 --          
 -- @function [parent=#RenderTexture] saveToFile
 -- @param self
 -- @param #string str
 -- @param #cc.Image::Format format
+-- @param #bool bool
 -- @return bool#bool ret (retunr value: bool)
 
 --------------------------------
diff --git a/cocos/scripting/lua-bindings/auto/lua_cocos2dx_auto.cpp b/cocos/scripting/lua-bindings/auto/lua_cocos2dx_auto.cpp
index 8f264e16eb..19394c8005 100644
--- a/cocos/scripting/lua-bindings/auto/lua_cocos2dx_auto.cpp
+++ b/cocos/scripting/lua-bindings/auto/lua_cocos2dx_auto.cpp
@@ -48007,6 +48007,26 @@ int lua_cocos2dx_RenderTexture_saveToFile(lua_State* tolua_S)
         }
     }while(0);
     ok  = true;
+    do{
+        if (argc == 3) {
+            std::string arg0;
+            ok &= luaval_to_std_string(tolua_S, 2,&arg0);
+
+            if (!ok) { break; }
+            cocos2d::Image::Format arg1;
+            ok &= luaval_to_int32(tolua_S, 3,(int *)&arg1);
+
+            if (!ok) { break; }
+            bool arg2;
+            ok &= luaval_to_boolean(tolua_S, 4,&arg2);
+
+            if (!ok) { break; }
+            bool ret = cobj->saveToFile(arg0, arg1, arg2);
+            tolua_pushboolean(tolua_S,(bool)ret);
+            return 1;
+        }
+    }while(0);
+    ok  = true;
     do{
         if (argc == 1) {
             std::string arg0;
@@ -48019,6 +48039,22 @@ int lua_cocos2dx_RenderTexture_saveToFile(lua_State* tolua_S)
         }
     }while(0);
     ok  = true;
+    do{
+        if (argc == 2) {
+            std::string arg0;
+            ok &= luaval_to_std_string(tolua_S, 2,&arg0);
+
+            if (!ok) { break; }
+            bool arg1;
+            ok &= luaval_to_boolean(tolua_S, 3,&arg1);
+
+            if (!ok) { break; }
+            bool ret = cobj->saveToFile(arg0, arg1);
+            tolua_pushboolean(tolua_S,(bool)ret);
+            return 1;
+        }
+    }while(0);
+    ok  = true;
     CCLOG("%s has wrong number of arguments: %d, was expecting %d \n", "saveToFile",argc, 1);
     return 0;
 
diff --git a/external/config.json b/external/config.json
index 94ea34592a..87b845080d 100644
--- a/external/config.json
+++ b/external/config.json
@@ -1,5 +1,5 @@
 {
-    "version":"v3-deps-2",
+    "version":"v3-deps-3",
     "zip_file_size":"57171285",
     "repo_name":"cocos2d-x-3rd-party-libs-bin",
     "repo_parent":"https://github.com/cocos2d/"
diff --git a/tools/cocos2d-console b/tools/cocos2d-console
index 498f24c168..f5037bab73 160000
--- a/tools/cocos2d-console
+++ b/tools/cocos2d-console
@@ -1 +1 @@
-Subproject commit 498f24c1683e4725ecaad6168a1aab21b283b8d5
+Subproject commit f5037bab73a8fb109e8e34656220bed1a1743087