diff --git a/docs/more/self-hosted-dsw/upgrade-guidelines.rst b/docs/more/self-hosted-dsw/upgrade-guidelines.rst
index f21d8be..d73dec5 100644
--- a/docs/more/self-hosted-dsw/upgrade-guidelines.rst
+++ b/docs/more/self-hosted-dsw/upgrade-guidelines.rst
@@ -48,7 +48,7 @@ Usually, nothing special is required for the upgrade. Internal structure changes
 4.32.X to 4.33.X
 ----------------
 
-*(nothing)*
+- Tools interacting with S3 (``mailer`` and ``document-worker``) now use ``botocore`` library instead of ``MinIO``. Settings, such as custom certificates, need to be configure according to its documentation: https://docs.aws.amazon.com/boto3/latest/guide/configuration.html#using-environment-variables.
 
 4.31.X to 4.32.X
 ----------------
@@ -75,13 +75,13 @@ Usually, nothing special is required for the upgrade. Internal structure changes
 
 - **Project Importers** were removed. They can be replaced by :ref:`configuration-plugins`.
 - API endpoints in sections related to **Document Templates** and **Knowledge Models** were updated. The primary identifier was changed from ``ID`` to ``UUID``. Please check the API documentation for the new endpoints.
-- Due to Document Template changes, it is necessary to migrate Document Templates in S3. You can use this script: https://github.com/ds-wizard/dsw-templates-migration-script
+- Due to Document Template changes, it is necessary to migrate Document Templates in S3. You can use this script: https://github.com/ds-wizard/dsw-templates-migration-script.
 
 4.26.X to 4.27.X
 ----------------
 
 - API endpoints in the sections related to **Locales** were updated. The primary identifier was changed from ``ID`` to ``UUID``. Please check the API documentation for the new endpoints.
-- Due to Locale changes, it is necessary to migrate Locales in S3. You can use this script: https://github.com/ds-wizard/dsw-locale-migration-script
+- Due to Locale changes, it is necessary to migrate Locales in S3. You can use this script: https://github.com/ds-wizard/dsw-locale-migration-script.
 
 4.25.X to 4.26.X
 ----------------