diff --git a/RDKShell/CHANGELOG.md b/RDKShell/CHANGELOG.md
index 1ee1a875bc..c620f9ce3f 100644
--- a/RDKShell/CHANGELOG.md
+++ b/RDKShell/CHANGELOG.md
@@ -16,6 +16,9 @@ All notable changes to this RDK Service will be documented in this file.
 
 * For more details, refer to [versioning](https://github.com/rdkcentral/rdkservices#versioning) section under Main README.
 
+## [1.5.3] - 2024-06-10
+### Changed
+- ResidentApp plugin unable to activate due to unable to get the Initialize/activating Notification from Thunder(R4.4.1)
 
 ## [1.5.2] - 2024-06-04
 ### Changed
diff --git a/RDKShell/RDKShell.cpp b/RDKShell/RDKShell.cpp
index 0a419146db..2f22ab2592 100755
--- a/RDKShell/RDKShell.cpp
+++ b/RDKShell/RDKShell.cpp
@@ -1453,7 +1453,7 @@ namespace WPEFramework {
         }
 
 #ifdef USE_THUNDER_R4
-	void RDKShell::MonitorClients::Initialize(VARIABLE_IS_NOT_USED const string& callsign, VARIABLE_IS_NOT_USED PluginHost::IShell* service)
+       void RDKShell::MonitorClients::Initialize(const string& callsign, PluginHost::IShell* service)
        {
              handleInitialize(service);
        }
@@ -1470,10 +1470,10 @@ namespace WPEFramework {
             //StateChange(service);
             handleDeactivated(service);
        }
-        void RDKShell::MonitorClients::Deinitialized(VARIABLE_IS_NOT_USED const string& callsign, VARIABLE_IS_NOT_USED PluginHost::IShell* service)
-        {
+       void RDKShell::MonitorClients::Deinitialized(const string& callsign, PluginHost::IShell* service)
+       {
             handleDeinitialized(service);
-        }
+       }
        void RDKShell::MonitorClients::Unavailable(const string& callsign, PluginHost::IShell* service)
        {}
 #endif /* USE_THUNDER_R4 */
diff --git a/RDKShell/RDKShell.h b/RDKShell/RDKShell.h
index dca3d9b054..63d2735d8c 100755
--- a/RDKShell/RDKShell.h
+++ b/RDKShell/RDKShell.h
@@ -396,7 +396,11 @@ namespace WPEFramework {
                   RDKShell& mShell;
             };
 
-            class MonitorClients : public PluginHost::IPlugin::INotification {
+            class MonitorClients : public PluginHost::IPlugin::INotification
+#if ((THUNDER_VERSION >= 4) && (THUNDER_VERSION_MINOR >= 4))
+            ,  public PluginHost::IPlugin::ILifeTime 
+#endif
+	   {
               private:
                   MonitorClients() = delete;
                   MonitorClients(const MonitorClients&) = delete;
@@ -414,6 +418,9 @@ namespace WPEFramework {
               public:
                   BEGIN_INTERFACE_MAP(MonitorClients)
                   INTERFACE_ENTRY(PluginHost::IPlugin::INotification)
+#if ((THUNDER_VERSION >= 4) && (THUNDER_VERSION_MINOR >= 4))
+		  INTERFACE_ENTRY(PluginHost::IPlugin::ILifeTime)
+#endif
                   END_INTERFACE_MAP
 
               private:
@@ -422,13 +429,14 @@ namespace WPEFramework {
                   void handleActivated(PluginHost::IShell* shell);
                   void handleDeactivated(PluginHost::IShell* shell);
                   void handleDeinitialized(PluginHost::IShell* shell);
+
 #ifdef USE_THUNDER_R4
-		  virtual void Initialize(VARIABLE_IS_NOT_USED const string& callsign, VARIABLE_IS_NOT_USED PluginHost::IShell* plugin);
+                  virtual void Initialize(const string& callsign, PluginHost::IShell* plugin);
                   virtual void Activation(const string& name, PluginHost::IShell* plugin);
                   virtual void Deactivation(const string& name, PluginHost::IShell* plugin);
                   virtual void  Activated(const string& callSign,  PluginHost::IShell* plugin);
                   virtual void  Deactivated(const string& callSign,  PluginHost::IShell* plugin);
-		  virtual void Deinitialized(VARIABLE_IS_NOT_USED const string& callsign, VARIABLE_IS_NOT_USED PluginHost::IShell* plugin);
+		  virtual void Deinitialized(const string& callsign, PluginHost::IShell* plugin);
                   virtual void  Unavailable(const string& callSign,  PluginHost::IShell* plugin);
 #endif /* USE_THUNDER_R4 */
               private: