diff --git a/admin_manual/configuration_server/config_sample_php_parameters.rst b/admin_manual/configuration_server/config_sample_php_parameters.rst
index 39fb65fbe..0955d8230 100644
--- a/admin_manual/configuration_server/config_sample_php_parameters.rst
+++ b/admin_manual/configuration_server/config_sample_php_parameters.rst
@@ -527,6 +527,34 @@ Available values:
 * ``disabled``  trash bin auto clean disabled, files and folders will be
                 kept forever
 
+::
+
+	'versions_retention_obligation' => 'auto',
+
+If the versions app is enabled (default), this setting defines the policy
+for when versions will be permanently deleted.
+
+The app allows for two settings, a minimum time for version retention,
+and a maximum time for version retention.
+Minimum time is the number of days a version will be kept, after which it
+may be deleted. Maximum time is the number of days at which it is guaranteed
+to be deleted.
+Both minimum and maximum times can be set together to explicitly define
+version deletion. For migration purposes, this setting is installed
+initially set to "auto", which is equivalent to the default setting in
+ownCloud 8.1 and before.
+
+Available values:
+  ``auto``      default setting. Automatically expire versions according to
+                expire rules. Please refer to Files_versions online documentation
+                for more info.
+  ``D, auto``   keep versions at least for D days, apply expire rules to all
+                versions that older than D days
+* ``auto, D``   delete all versions that are older than D days automatically,
+                delete other versions according to expire rules
+* ``D1, D2``    keep versions for at least D1 days and delete when exceeds D2 days
+  ``disabled``  versions auto clean disabled, versions will be kept forever
+
 ownCloud Verifications
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