diff --git a/CHANGELOG.md b/CHANGELOG.md
index bec7954d4e2..a83576d3f38 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,10 +2,14 @@
 
 ## Unreleased
 
-[Please see the wiki-page](https://gitlab.opengeosys.org/ogs/ogs/-/wikis/Release-notes-6.4.3)
+[Please see the wiki-page](https://gitlab.opengeosys.org/ogs/ogs/-/wikis/Release-notes-6.4.4)
 
 ----
 
+## 6.4.3
+
+[Changelog for OpenGeoSys 6.4.3](https://gitlab.opengeosys.org/ogs/ogs/-/wikis/Release-notes-6.4.3)
+
 ## 6.4.2
 
 [Changelog for OpenGeoSys 6.4.2](https://gitlab.opengeosys.org/ogs/ogs/-/wikis/Release-notes-6.4.2)
diff --git a/CITATION.cff b/CITATION.cff
index 91143405e57..969a97b2cbd 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -9,7 +9,7 @@ license: BSD-3-Clause
 # DOI representing all versions, do not change:
 doi: 10.5281/zenodo.591265
 # The following needs to be adapted on releases:
-version: "6.4.2"
+version: "6.4.3"
 date-released: "2022-04-01"
 identifiers:
     - type: doi
diff --git a/Documentation/mainpage.dox.in b/Documentation/mainpage.dox.in
index 27d226cfbfa..7ff16ef5d3a 100644
--- a/Documentation/mainpage.dox.in
+++ b/Documentation/mainpage.dox.in
@@ -3,14 +3,14 @@
  * OpenGeoSys (OGS) is a scientific open source project for the development of
  * numerical methods for the simulation of thermo-hydro-mechanical-chemical
  * (THMC) processes in porous and fractured media. OGS is implemented in C++, it
- * is object-oriented with an focus on the numerical solution of coupled multi-field
- * problems (multi-physics). Parallel versions of OGS are available relying on
- * both MPI and OpenMP concepts.
+ * is object-oriented with an focus on the numerical solution of coupled
+ * multi-field problems (multi-physics). Parallel versions of OGS are available
+ * relying on both MPI and OpenMP concepts.
  *
  * Application areas of OGS are currently CO2
  * sequestration, geothermal energy, water resources management, hydrology and
- * waste deposition. OGS is comprised of the THMC-simulator (simply referred to as
- * *OGS*) and a visualization tool (*Data Explorer*).
+ * waste deposition. OGS is comprised of the THMC-simulator (simply referred to
+ * as *OGS*) and a visualization tool (*Data Explorer*).
  *
  * OGS is developed by the OpenGeoSys Community.
  *
@@ -21,6 +21,7 @@
  *
  * The documentation for OGS releases can be found here:
  *
+ * - https://doxygen.opengeosys.org/v6.4.3
  * - https://doxygen.opengeosys.org/v6.4.2
  * - https://doxygen.opengeosys.org/v6.4.1
  * - https://doxygen.opengeosys.org/v6.4.0
@@ -30,7 +31,8 @@
  * - OGS home page: https://opengeosys.org/
  * - Selected benchmarks: https://opengeosys.org/docs/benchmarks
  * - Developer guide: https://opengeosys.org/docs/devguide
- * - Data Explorer (GUI) manual: https://gitlab.opengeosys.org/ogs/data_explorer_manual/-/jobs/artifacts/master/raw/ogsde-man.pdf?job=build
+ * - Data Explorer (GUI) manual:
+ * https://gitlab.opengeosys.org/ogs/data_explorer_manual/-/jobs/artifacts/master/raw/ogsde-man.pdf?job=build
  * - Discussion forum: https://discourse.opengeosys.org
  *
  * \section internal_modules Internal Modules
diff --git a/README.md b/README.md
index 7cf42ceed39..e549223eac3 100644
--- a/README.md
+++ b/README.md
@@ -29,5 +29,5 @@ OpenGeoSys is distributed under the Modified BSD License. See the
 [ogs]: https://www.opengeosys.org
 [documentation]: https://www.opengeosys.org/docs/
 [docs-master]: https://doxygen.opengeosys.org/
-[docs-release]: https://doxygen.opengeosys.org/v6.4.2
+[docs-release]: https://doxygen.opengeosys.org/v6.4.3
 [license-source]: https://github.com/ufz/ogs/blob/master/LICENSE.txt
diff --git a/scripts/doc/_redirects b/scripts/doc/_redirects
index 51b720bbafb..c1fc9a967ea 100644
--- a/scripts/doc/_redirects
+++ b/scripts/doc/_redirects
@@ -5,3 +5,4 @@
 /v6.4.1 https://doxygen.opengeosys.org/v6.4.1/index.html 301
 /v6.4.1/* https://ogs-doxygen-v6-4-1.netlify.app/:splat 200!
 /v6.4.2/* https://ogs-doxygen-v6-4-2.netlify.app/:splat 200!
+/v6.4.3/* https://ogs-doxygen-v6-4-3.netlify.app/:splat 200!
diff --git a/web/content/releases/6.4.3.md b/web/content/releases/6.4.3.md
new file mode 100644
index 00000000000..2eecc59c3b7
--- /dev/null
+++ b/web/content/releases/6.4.3.md
@@ -0,0 +1,24 @@
++++
+date = "2022-09-19T13:10:13+01:00"
+title = "OpenGeoSys 6.4.3"
+tag = "6.4.3"
+author = "Lars Bilke"
+release_date = "2022-09-19"
+
+[downloads]
+binary = [
+    "Windows-10.0.22000-python-3.10.7-de-utils.zip",
+    "Windows-10.0.22000-python-3.10.7-utils.zip",
+    "Windows-10.0.22000-de-utils.zip",
+    "Windows-10.0.22000-utils.zip"
+]
+container = [
+    "serial.sif",
+    "openmpi-4.0.5.sif",
+]
+note = """
+**Note:** When using Python bindings make sure to have Python installed on your system:
+
+- Windows: [Python 3.10.7](https://www.python.org/ftp/python/3.10.7/python-3.10.7-amd64.exe)
+"""
++++