diff --git a/source/reference/commands/nginx-stage/commands/nginx-clean.rst b/source/reference/commands/nginx-stage/commands/nginx-clean.rst
index bfa5a5790..aca195b49 100644
--- a/source/reference/commands/nginx-stage/commands/nginx-clean.rst
+++ b/source/reference/commands/nginx-stage/commands/nginx-clean.rst
@@ -12,6 +12,11 @@ active connections.
 
 .. program:: nginx_stage nginx_clean
 
+
+..  note::
+  Since 4.0 ``nginx_clean`` also cleans per-user NGINX (PUN) processes
+  for users that have been disabled (removed from LDAP).
+
 General Options
 ---------------
 
diff --git a/source/release-notes/v4.0-release-notes.rst b/source/release-notes/v4.0-release-notes.rst
index fde806732..f4ec77a91 100644
--- a/source/release-notes/v4.0-release-notes.rst
+++ b/source/release-notes/v4.0-release-notes.rst
@@ -23,6 +23,7 @@ New Features
 - `Remove runtime dependency on SCL`_
 - `XDMoD efficiency widget update`_
 - `Edit and delete interactive application saved settings`_
+- `nginx_clean now cleans PUNs of disabled users`_
 
 Thanks!
 -------
@@ -407,3 +408,16 @@ these saved settings.
 
 See :ref:`edit-save-interactive-app-saved-settings` for more
 details.
+
+nginx_clean now cleans PUNs of disabled users
+.............................................
+
+The helper method ``nginx_clean`` in the ``nginx_stage``
+library will now remove PUNs and related files for users
+that have been disabled.
+
+Disabled users have been deleted from LDAP and are no longer
+valid users on that system.
+
+This means that centers that delete users (remove them from LDAP)
+will also now start to clean those processes on the OnDemand machine.