diff --git a/.mailmap b/.mailmap
index f9ddaad9681..8133dac74d8 100644
--- a/.mailmap
+++ b/.mailmap
@@ -92,3 +92,5 @@ Matthes Kantzenbach <m.kantzenbach@outlook.de>
 Feliks K. Kiszkurno <feliks-kuba.kiszkurno@ufz.de>
 Philipp Selzer <philipp.selzer@ufz.de>
 Philipp Selzer <philipp.selzer@ufz.de> <Philipp.Selzer@gmx.net>
+Joy Brato Shil <joybroto6@gmail.com>
+Frieder Loer <frieder.loer@ufz.de>
diff --git a/CITATION.cff b/CITATION.cff
index 4132e169f11..148c592c040 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -117,6 +117,9 @@ authors:
     - given-names: Jakob
       family-names: Randow
       affiliation: "Hochschule für Technik, Wirtschaft und Kultur Leipzig"
+    - given-names: Loer
+      family-names: Frieder
+      affiliation: Helmholtz Centre for Environmental Research -- UFZ
     - given-names: Robert
       family-names: Habel
       affiliation: TU Bergakademie Freiberg
@@ -152,6 +155,9 @@ authors:
     - given-names: Falko
       family-names: Vehling
       affiliation: Helmholtz Centre for Environmental Research -- UFZ
+    - given-names: Joy
+      family-names: Brato Shil
+      affiliation: Helmholtz Centre for Environmental Research -- UFZ
     - given-names: Sophie
       family-names: Einspänner
       affiliation: TU Bergakademie Freiberg
@@ -195,7 +201,7 @@ authors:
       affiliation: Helmholtz Centre for Environmental Research -- UFZ
     - given-names: Mehran
       family-names: Ghasabeh
-      affiliation: Helmholtz Centre for Environmental Research -- UFZ
+      affiliation: TU Bergakademie Freiberg
     - given-names: Michael
       family-names: Pitz
       affiliation: >-
@@ -211,6 +217,9 @@ authors:
     - given-names: Luca
       family-names: Urpi
 identifiers:
+    - type: doi
+      value: 10.5281/zenodo.2600042
+      description: Zenodo DOI for 6.5.0
     - type: doi
       value: 10.5281/zenodo.7716938
       description: Zenodo DOI for 6.4.4
@@ -271,6 +280,6 @@ identifiers:
 repository-code: "https://github.com/ufz/ogs"
 url: "https://www.opengeosys.org"
 license: BSD-3-Clause
-version: 6.4.4
-date-released: "2023-03-10"
-doi: 10.5281/zenodo.591265
+version: 6.5.0
+date-released: "2023-30-11"
+doi: 10.5281/zenodo.2600042
diff --git a/web/content/docs/devguide/procedures/publish-a-release/index.md b/web/content/docs/devguide/procedures/publish-a-release/index.md
index e6ad7ea52d9..49062b41f8f 100644
--- a/web/content/docs/devguide/procedures/publish-a-release/index.md
+++ b/web/content/docs/devguide/procedures/publish-a-release/index.md
@@ -18,7 +18,15 @@ weight = 1080
 - Update `[docs-release]`-link in `README.md` to the new tag (with `v`-prefix)
 - Add a redirect in `scripts/doc/_redirects`
 - Update `CITATION.cff` (Zenodo DOI will be added later)
+- Create a commit and push
+- Wait for CI to be green (except for URL checker which will fail)
 - Create a tag and push
+
+  ```bash
+  git tag -s -m "OpenGeoSys 6.5.0" 6.5.0
+  git push --tags
+  ```
+
 - A new release is automatically created on GitLab
   - Fill in the release notes from the Wiki
   - Convert MR ids to URLs: replace `!([0-9][0-9][0-9][0-9])` with `[!$1](https://gitlab.opengeosys.org/ogs/ogs/-/merge_requests/$1)` and `#([0-9][0-9][0-9][0-9])` with `[#$1](https://gitlab.opengeosys.org/ogs/ogs/-/issues/$1)`