rsanchez15 · May 28, 2026 · May 27, 2026
diff --git a/source/About-ROS.rst b/source/About-ROS.rst
@@ -8,10 +8,6 @@ This article introduces the main areas of the ecosystem and outlines their inten
 
 **Area: ROS-framework, ROS-tools, ROS-capabilities | Content-type: about | Experience: beginner**
 
-.. contents:: Table of Contents
-   :depth: 2
-   :local:
-
 Summary
 -------
 

diff --git a/source/Concepts/Basic/Interfaces-Topics-Services-Actions.rst b/source/Concepts/Basic/Interfaces-Topics-Services-Actions.rst
@@ -13,10 +13,6 @@ With this information, you'll be able to select the right interfaces for your pu
 
 **Area: ROS-framework | Content-type: concept | Experience: beginner**
 
-.. contents:: Table of Contents
-   :depth: 2
-   :local:
-
 .. toctree::
    :hidden:
 

diff --git a/source/First-Steps.rst b/source/First-Steps.rst
@@ -9,10 +9,6 @@ Working through these will give you the essential knowledge needed to start deve
 
 **Area: ROS-framework | Content-type: learning-path | Experience: beginner**
 
-.. contents:: Contents
-    :depth: 2
-    :local:
-
 Summary
 -------
 

diff --git a/source/How-To-Guides/Topics-Services-Actions.rst b/source/How-To-Guides/Topics-Services-Actions.rst
diff --git a/source/Installation/ROS-2-Mirrors.rst b/source/Installation/ROS-2-Mirrors.rst
@@ -2,9 +2,6 @@
 Mirrors
 =======
 
-.. contents:: Table of Contents
-   :depth: 3
-
 Docs Mirrors
 ------------
 

diff --git a/source/Releases/Lyrical-Luth-Complete-Changelog.rst b/source/Releases/Lyrical-Luth-Complete-Changelog.rst
@@ -3,9 +3,6 @@ ROS 2 Lyrical Luth Complete Changelog
 
 This page is a list of the complete changes in all ROS 2 core packages since the previous release.
 
-.. contents:: Table of Contents
-   :local:
-
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 `action_msgs <https://github.com/ros2/rcl_interfaces/tree/lyrical/action_msgs/CHANGELOG.rst>`__
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

diff --git a/source/Releases/Release-Lyrical-Luth.rst b/source/Releases/Release-Lyrical-Luth.rst
@@ -5,6 +5,13 @@
 Lyrical Luth (codename 'lyrical'; May, 2026)
 ============================================
 
+.. toctree::
+   :hidden:
+
+   Lyrical-Luth-Complete-Changelog
+   lyrical/release-timeline.rst
+   lyrical/supported-platforms.rst
+
 *Lyrical Luth* is the twelfth release of ROS 2.
 It is a Long Term Support (LTS) release, and it is supported until May 2031.
 
@@ -18,10 +25,6 @@ New Features in Lyrical
 This section highlights some of the new features in ROS Lyrical.
 For all changes, see the :doc:`full ROS Lyrical changelog <Lyrical-Luth-Complete-Changelog>`.
 
-.. contents:: Table of Contents
-   :depth: 1
-   :local:
-
 Callback Group Events executor (``rclcpp``)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 

diff --git a/source/The-ROS2-Project/Platform-EOL-Policy.rst b/source/The-ROS2-Project/Platform-EOL-Policy.rst
@@ -3,10 +3,6 @@
 Platform EOL Policy
 ===================
 
-.. contents:: Table of Contents
-   :depth: 1
-   :local:
-
 :doc:`ROS distributions <../Releases>` do not support end-of-life (EOL) platforms, even if the ROS distribution is still active.
 This page explains:
 

diff --git a/source/Tutorials/Advanced/Discovery-Server/Discovery-Server.rst b/source/Tutorials/Advanced/Discovery-Server/Discovery-Server.rst
@@ -490,15 +490,17 @@ To support more participants, increase ``mutation_tries`` by applying the follow
 
 Save this file (e.g. as ``large_scale_configuration.xml``) and set the environment variable before launching your nodes:
 
-.. tabs::
+.. tab-set::
 
-    .. group-tab:: Linux
+    .. tab-item:: Linux
+        :sync: Linux
 
         .. code-block:: console
 
             $ export FASTDDS_DEFAULT_PROFILES_FILE=large_scale_configuration.xml
 
-    .. group-tab:: Windows
+    .. tab-item:: Windows
+        :sync: Windows
 
         .. code-block:: console
 

diff --git a/source/Tutorials/Advanced/Simulators/MVSim/Defining-Worlds-MVSim.rst b/source/Tutorials/Advanced/Simulators/MVSim/Defining-Worlds-MVSim.rst
@@ -7,10 +7,6 @@ Defining worlds, robots, and sensors
 
 **Time:** 30 minutes
 
-.. contents:: Contents
-   :depth: 2
-   :local:
-
 Background
 ----------
 

diff --git a/source/Tutorials/Advanced/Simulators/MVSim/Getting-Started-MVSim.rst b/source/Tutorials/Advanced/Simulators/MVSim/Getting-Started-MVSim.rst
@@ -7,10 +7,6 @@ Getting started with MVSim
 
 **Time:** 20 minutes
 
-.. contents:: Contents
-   :depth: 2
-   :local:
-
 Background
 ----------
 

diff --git a/source/Tutorials/Advanced/Simulators/MVSim/Installation-Ubuntu.rst b/source/Tutorials/Advanced/Simulators/MVSim/Installation-Ubuntu.rst
@@ -7,10 +7,6 @@ Installation (Ubuntu)
 
 **Time:** 10 minutes
 
-.. contents:: Contents
-   :depth: 2
-   :local:
-
 Background
 ----------
 
@@ -37,17 +33,19 @@ Tasks
 
 You can either install the released binary package or build from sources.
 
-.. tabs::
+.. tab-set::
 
-    .. group-tab:: Install from ROS binary packages
+    .. tab-item:: Install from ROS binary packages
+        :sync: Install from ROS binary packages
 
         Run the following command in a terminal:
 
         .. code-block:: console
 
             $ sudo apt install ros-{DISTRO}-mvsim
 
-    .. group-tab:: Build from sources
+    .. tab-item:: Build from sources
+        :sync: Build from sources
 
         Create a ROS 2 workspace if you don't already have one:
 

diff --git a/source/Tutorials/Advanced/Simulators/MVSim/Simulation-MVSim.rst b/source/Tutorials/Advanced/Simulators/MVSim/Simulation-MVSim.rst
@@ -9,10 +9,6 @@ sensor simulation (2D/3D LiDARs, cameras, IMUs, GPS), and native ROS 2 integrati
 MVSim is particularly well-suited for testing navigation, SLAM, and multi-robot coordination scenarios
 with low computational overhead and fast iteration times.
 
-.. contents:: Contents
-   :depth: 2
-   :local:
-
 .. toctree::
    :maxdepth: 1
 

diff --git a/source/Tutorials/Advanced/Supplementing-Custom-Rosdep-Keys.rst b/source/Tutorials/Advanced/Supplementing-Custom-Rosdep-Keys.rst
@@ -1,10 +1,6 @@
 Supplementing custom rosdep keys
 ================================
 
-.. contents:: Contents
-    :depth: 2
-    :local:
-
 Overview and motivation
 -----------------------
 

diff --git a/source/Tutorials/Demos/Managed-Nodes.rst b/source/Tutorials/Demos/Managed-Nodes.rst
@@ -12,10 +12,6 @@ You can use the example to understand and experiment with managing nodes in this
 
 **Area: ROS-framework | Content-type: example | Experience: expert**
 
-.. contents:: Contents
-   :depth: 2
-   :local:
-
 Summary
 -------
 

diff --git a/...Tutorials/Intermediate/RViz/Marker-Points-and-Lines/Marker-Points-and-Lines.rst b/...Tutorials/Intermediate/RViz/Marker-Points-and-Lines/Marker-Points-and-Lines.rst
@@ -7,10 +7,6 @@ Marker: Points and Lines (C++)
 
 **Time:** 15 Minutes
 
-.. contents:: Contents
-   :depth: 3
-   :local:
-
 .. note::
 
    This tutorial assumes that you have completed :doc:`Marker: Sending Basic Shapes <../Marker-Sending-Basic-Shapes/Marker-Sending-Basic-Shapes>`.

diff --git a/...s/Intermediate/RViz/Marker-Sending-Basic-Shapes/Marker-Sending-Basic-Shapes.rst b/...s/Intermediate/RViz/Marker-Sending-Basic-Shapes/Marker-Sending-Basic-Shapes.rst
@@ -7,10 +7,6 @@ Marker: Sending Basic Shapes (C++)
 
 **Time:** 15 Minutes
 
-.. contents:: Contents
-   :depth: 3
-   :local:
-
 .. note::
 
    This tutorial assumes you are already comfortable with writing ROS 2 C++ nodes and building packages with ``colcon``.

diff --git a/source/Tutorials/Intermediate/Testing/Python.rst b/source/Tutorials/Intermediate/Testing/Python.rst
@@ -69,15 +69,17 @@ Beyond the :doc:`standard colcon testing commands <CLI>` you can also specify ar
 For example, you can specify the name of the function to run with
 
 
-.. tabs::
+.. tab-set::
 
-  .. group-tab:: Linux/macOS
+  .. tab-item:: Linux/macOS
+      :sync: Linux/macOS
 
       .. code-block:: console
 
          $ colcon test --packages-select <name-of-pkg> --pytest-args -k name_of_the_test_function
 
-  .. group-tab:: Windows
+  .. tab-item:: Windows
+      :sync: Windows
 
       .. code-block:: console
-Original file line number
+Diff line change
@@ Expand Up @@
     **Area: ROS-framework, ROS-tools, ROS-capabilities | Content-type: about | Experience: beginner**
-    .. contents:: Table of Contents
-       :depth: 2
-       :local:
     Summary
     -------
@@ Expand Down @@