diff --git a/nixos/doc/manual/release-notes/rl-2003.xml b/nixos/doc/manual/release-notes/rl-2003.xml
index 31f08d9da341e5..b506e94e47b2e6 100644
--- a/nixos/doc/manual/release-notes/rl-2003.xml
+++ b/nixos/doc/manual/release-notes/rl-2003.xml
@@ -631,6 +631,16 @@ auth required pam_succeed_if.so uid >= 1000 quiet
      </citerefentry>-script now uses the python test-driver.
     </para>
    </listitem>
+   <listitem>
+    <para>
+     The <package>riot-web</package> package now accepts configuration overrides as an attribute set instead of a string.
+     A formerly used JSON configuration can be converted to an attribute set with <literal>builtins.fromJSON</literal>.
+    </para>
+    <para>
+     The new default configuration also disables automatic guest account registration and analytics to improve privacy.
+     The previous behavior can be restored by setting <literal>config.riot-web.conf = { disable_guests = false; piwik = true; }</literal>.
+    </para>
+   </listitem>
   </itemizedlist>
  </section>