diff --git a/docs/conf.py b/docs/conf.py
index 52f2e7e1e..09e3823da 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -566,9 +566,9 @@ def configure_doxyfile(
 # built documents.
 #
 # The short X.Y version.
-version = "3.4.2"
+version = "3.4.3"
 # The full version, including alpha/beta/rc tags.
-release = "3.4.2"
+release = "3.4.3"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/notes/notes.rst b/docs/notes/notes.rst
index 217b2d903..0b447ba9c 100644
--- a/docs/notes/notes.rst
+++ b/docs/notes/notes.rst
@@ -5,7 +5,7 @@
 Information about the release lifecycle can be found
 :fastdds-blob:`here <RELEASE_SUPPORT.md>`.
 
-.. include:: previous_versions/v3.4.2.rst
+.. include:: previous_versions/v3.4.3.rst
 
 .. seealso::
 
diff --git a/docs/notes/previous_versions/supported_versions.rst b/docs/notes/previous_versions/supported_versions.rst
index 1f5b27910..732c6536f 100644
--- a/docs/notes/previous_versions/supported_versions.rst
+++ b/docs/notes/previous_versions/supported_versions.rst
@@ -3,9 +3,10 @@
 Supported versions
 ==================
 
-Version 3.4
------------
+Version 3.4 (EOL)
+-----------------
 
+.. include:: v3.4.3.rst
 .. include:: v3.4.2.rst
 .. include:: v3.4.1.rst
 .. include:: v3.4.0.rst
diff --git a/docs/notes/previous_versions/v3.4.0.rst b/docs/notes/previous_versions/v3.4.0.rst
index 39b0b2392..595fe30f3 100644
--- a/docs/notes/previous_versions/v3.4.0.rst
+++ b/docs/notes/previous_versions/v3.4.0.rst
@@ -1,5 +1,5 @@
-`Version 3.4.0 <https://fast-dds.docs.eprosima.com/en/v3.4.0/index.html>`_
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Version 3.4.0 (EOL) <https://fast-dds.docs.eprosima.com/en/v3.4.0/index.html>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 This minor release includes the following **features**:
 
diff --git a/docs/notes/previous_versions/v3.4.1.rst b/docs/notes/previous_versions/v3.4.1.rst
index fded5f7eb..b83a6d001 100644
--- a/docs/notes/previous_versions/v3.4.1.rst
+++ b/docs/notes/previous_versions/v3.4.1.rst
@@ -1,5 +1,5 @@
-`Version 3.4.1 <https://fast-dds.docs.eprosima.com/en/v3.4.1/index.html>`_
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Version 3.4.1 (EOL) <https://fast-dds.docs.eprosima.com/en/v3.4.1/index.html>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 This patch release includes the following **security fixes**:
 
diff --git a/docs/notes/previous_versions/v3.4.2.rst b/docs/notes/previous_versions/v3.4.2.rst
index 1d3e88412..2c787ad40 100644
--- a/docs/notes/previous_versions/v3.4.2.rst
+++ b/docs/notes/previous_versions/v3.4.2.rst
@@ -1,5 +1,5 @@
-`Version 3.4.2 (latest) <https://fast-dds.docs.eprosima.com/en/v3.4.2/index.html>`_
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Version 3.4.2 (EOL) <https://fast-dds.docs.eprosima.com/en/v3.4.2/index.html>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 This patch release includes the following **security fixes**:
 
diff --git a/docs/notes/previous_versions/v3.4.3.rst b/docs/notes/previous_versions/v3.4.3.rst
new file mode 100644
index 000000000..69011a6b3
--- /dev/null
+++ b/docs/notes/previous_versions/v3.4.3.rst
@@ -0,0 +1,32 @@
+`Version 3.4.3 (EOL) <https://fast-dds.docs.eprosima.com/en/v3.4.3/index.html>`_
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This release includes the following **critical fixes**:
+
+#. Fix `CVE-2026-22591 <https://www.cve.org/CVERecord?id=CVE-2026-22591>`__
+#. Fix `CVE-2026-45094 <https://www.cve.org/CVERecord?id=CVE-2026-45094>`__
+#. Fix `CVE-2026-45095 <https://www.cve.org/CVERecord?id=CVE-2026-45095>`__
+#. Fix `CVE-2026-45096 <https://www.cve.org/CVERecord?id=CVE-2026-45096>`__
+#. Fix `CVE-2025-63829 <https://www.cve.org/CVERecord?id=CVE-2025-63829>`__
+#. Fix `CVE-2025-65865 <https://www.cve.org/CVERecord?id=CVE-2025-65865>`__
+#. Fix `CVE-2026-45093 <https://www.cve.org/CVERecord?id=CVE-2026-45093>`__
+#. Fix `CVE-2026-45092 <https://www.cve.org/CVERecord?id=CVE-2026-45092>`__
+#. Fix `CVE-2026-45097 <https://www.cve.org/CVERecord?id=CVE-2026-45097>`__
+
+This release includes the following **fixes**:
+
+#. Fix ``RTPSParticipantAttributes`` internal data races
+#. Fix some null-dereference errors
+#. Fix wrong update of default locators
+#. Make ``on_xxx_matched`` thread-safe
+
+This release includes the following **improvements**:
+
+#. Update foonathan.net links
+#. Remove deprecated doxygen warnings
+#. Updates after v3.3.1 EOL
+
+This release includes the following **ci management updates**:
+
+#. Run ``xtypes`` test cases in parallel
+#. Improve windows tests
diff --git a/docs/notes/versions.rst b/docs/notes/versions.rst
index 9a68a3023..3fee02cab 100644
--- a/docs/notes/versions.rst
+++ b/docs/notes/versions.rst
@@ -27,12 +27,12 @@ The following table shows the currently supported versions of Fast DDS and their
       - Release date
       - End of Standard Support date
       - EOL date
-    * - 3.4
+    * - 3.4 (EOL)
       - `3.4.x <https://github.com/eProsima/Fast-DDS/tree/3.4.x>`__
-      - `v3.4.2 <https://github.com/eProsima/Fast-DDS/releases/tag/v3.4.2>`__
+      - `v3.4.3 <https://github.com/eProsima/Fast-DDS/releases/tag/v3.4.3>`__
       - October 2025
-      - April 2026
-      - April 2026
+      - June 2026
+      - June 2026
     * - 3.2
       - `3.2.x <https://github.com/eProsima/Fast-DDS/tree/3.2.x>`__ (LTS)
       - `v3.2.3 <https://github.com/eProsima/Fast-DDS/releases/tag/v3.2.3>`__
@@ -91,7 +91,7 @@ The following table shows the minimum version required of the Fast DDS build sys
 
 .. tab-set::
 
-    .. tab-item:: 3.4.x
+    .. tab-item:: 3.4.x (EOL)
         :sync: 3.4.x
 
         .. list-table::
@@ -311,7 +311,7 @@ The following table shows the corresponding versions of the Fast DDS library dep
 
 .. tab-set::
 
-    .. tab-item:: 3.4.x
+    .. tab-item:: 3.4.x (EOL)
         :sync: 3.4.x
 
         .. list-table::
@@ -320,7 +320,7 @@ The following table shows the corresponding versions of the Fast DDS library dep
             * - Product
               - Related version
             * - `Fast CDR <https://github.com/eProsima/Fast-CDR/>`__
-              - `v2.3.5 <https://github.com/eProsima/Fast-CDR/releases/tag/v2.3.5>`__
+              - `v2.3.6 <https://github.com/eProsima/Fast-CDR/releases/tag/v2.3.6>`__
             * - `Foonathan Memory Vendor <https://github.com/eProsima/foonathan_memory_vendor/>`__
               - `v1.3.2 <https://github.com/eProsima/foonathan_memory_vendor/releases/tag/v1.3.2>`__
             * - `Asio <https://github.com/chriskohlhoff/asio>`__
@@ -403,7 +403,7 @@ Fast DDS as the core middleware.
 
 .. tab-set::
 
-    .. tab-item:: 3.4.x
+    .. tab-item:: 3.4.x (EOL)
         :sync: 3.4.x
 
         .. list-table::
@@ -412,13 +412,13 @@ Fast DDS as the core middleware.
             * - Product
               - Related version
             * - `Fast DDS Gen <https://github.com/eProsima/Fast-DDS-Gen/>`__
-              - `v4.2.0 <https://github.com/eProsima/Fast-DDS-Gen/releases/tag/v4.2.0>`__
+              - `v4.2.1 <https://github.com/eProsima/Fast-DDS-Gen/releases/tag/v4.2.1>`__
             * - `Fast DDS Gen - IDL parser <https://github.com/eProsima/IDL-Parser/>`__
-              - `v4.2.0 <https://github.com/eProsima/IDL-Parser/releases/tag/v4.2.0>`__
+              - `v4.2.1 <https://github.com/eProsima/IDL-Parser/releases/tag/v4.2.1>`__
             * - `Fast DDS python <https://github.com/eProsima/Fast-DDS-python/>`__
               - `v2.4.1 <https://github.com/eProsima/Fast-DDS-python/releases/tag/v2.4.1>`__
             * - `Shapes Demo <https://github.com/eProsima/ShapesDemo/>`__
-              - `v3.4.0 <https://github.com/eProsima/ShapesDemo/releases/tag/v3.4.0>`__
+              - `v3.4.3 <https://github.com/eProsima/ShapesDemo/releases/tag/v3.4.3>`__
             * - `Discovery Server <https://github.com/eProsima/Discovery-Server/>`__
               - `v2.2.0 <https://github.com/eProsima/Discovery-Server/releases/tag/v2.2.0>`__