diff --git a/turtlebot3_fake_node/CHANGELOG.rst b/turtlebot3_fake_node/CHANGELOG.rst
index 58bc252..140bd6f 100644
--- a/turtlebot3_fake_node/CHANGELOG.rst
+++ b/turtlebot3_fake_node/CHANGELOG.rst
@@ -3,6 +3,7 @@ Changelog for package turtlebot3_fake
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 2.3.0 (2025-02-17)
+------------------
 * none
 
 2.2.6 (2202-05-26)
diff --git a/turtlebot3_gazebo/CHANGELOG.rst b/turtlebot3_gazebo/CHANGELOG.rst
index d03facd..acf255a 100644
--- a/turtlebot3_gazebo/CHANGELOG.rst
+++ b/turtlebot3_gazebo/CHANGELOG.rst
@@ -3,6 +3,7 @@ Changelog for package turtlebot3_gazebo
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 2.3.0 (2025-02-17)
+------------------
 * Added multi-robot launch functionality
 * Updated robot mesh in Gazebo and RViz
 * Added launch file for TurtleBot3 Autorace 2020
diff --git a/turtlebot3_gazebo/models/turtlebot3_autorace_2020/course/model.sdf b/turtlebot3_gazebo/models/turtlebot3_autorace_2020/course/model.sdf
index 8889c7d..d5dcc2f 100644
--- a/turtlebot3_gazebo/models/turtlebot3_autorace_2020/course/model.sdf
+++ b/turtlebot3_gazebo/models/turtlebot3_autorace_2020/course/model.sdf
@@ -29,7 +29,6 @@
         </geometry>
 	      <material>
           <script>
-            <!--uri>file://materials/scripts/floor.material</uri-->
             <uri>model://turtlebot3_autorace_2020/course/materials/scripts</uri>
             <uri>model://turtlebot3_autorace_2020/course/materials/textures</uri>
             <name>course</name>
diff --git a/turtlebot3_gazebo/urdf/turtlebot3_burger_cam.urdf b/turtlebot3_gazebo/urdf/turtlebot3_burger_cam.urdf
index 2790662..c4ad513 100644
--- a/turtlebot3_gazebo/urdf/turtlebot3_burger_cam.urdf
+++ b/turtlebot3_gazebo/urdf/turtlebot3_burger_cam.urdf
@@ -1,9 +1,7 @@
 <?xml version="1.0" ?>
 <robot name="turtlebot3_burger_cam"
   xmlns:xacro="http://ros.org/wiki/xacro">
-  <!-- <xacro:include filename="$(find turtlebot3_description)/urdf/common_properties.urdf"/> -->
-
-  <!-- Init colour -->
+  
   <material name="black">
       <color rgba="0.0 0.0 0.0 1.0"/>
   </material>
diff --git a/turtlebot3_simulations/CHANGELOG.rst b/turtlebot3_simulations/CHANGELOG.rst
index 4f150e8..5dc1131 100644
--- a/turtlebot3_simulations/CHANGELOG.rst
+++ b/turtlebot3_simulations/CHANGELOG.rst
@@ -3,6 +3,7 @@ Changelog for package turtlebot3_simulations
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 2.3.0 (2025-02-17)
+------------------
 * Added multi-robot launch functionality
 * Updated robot mesh in Gazebo and RViz
 * Added launch file for TurtleBot3 Autorace 2020