diff --git a/man/systemd-id128.xml b/man/systemd-id128.xml
index bf71a7c3a81..32226363cb2 100644
--- a/man/systemd-id128.xml
+++ b/man/systemd-id128.xml
@@ -86,7 +86,8 @@
     combined with the <option>--app-specific=<replaceable>app-id</replaceable></option> switch to generate
     application-specific IDs. See
     <citerefentry><refentrytitle>sd_id128_get_machine</refentrytitle><manvolnum>3</manvolnum></citerefentry>
-    for the discussion when this is useful.</para>
+    for the discussion when this is useful. Support for <command>show --app-specific=</command> was added in
+    version 255.</para>
   </refsect1>
 
   <refsect1>
@@ -109,7 +110,9 @@
         <term><option>--value</option></term>
 
         <listitem><para>Only print the value. May be combined with
-        <option>-u</option>/<option>--uuid</option>.</para></listitem>
+        <option>-u</option>/<option>--uuid</option>.</para>
+
+        <xi:include href="version-info.xml" xpointer="v255"/></listitem>
       </varlistentry>
 
       <varlistentry>