diff --git a/doc/go1.18.html b/doc/go1.18.html
index 15cec4e1f06..82facf38452 100644
--- a/doc/go1.18.html
+++ b/doc/go1.18.html
@@ -696,7 +696,8 @@ Do not send CLs removing the interior tags from such phrases.
 <dl id="regexp"><dt><a href="/pkg/regexp/">regexp</a></dt>
   <dd>
     <p><!-- CL 354569 -->
-      TODO: <a href="https://golang.org/cl/354569">https://golang.org/cl/354569</a>: document and implement that invalid UTF-8 bytes are the same as U+FFFD
+      <a href="/pkg/regexp/"><code>regexp</code></a>
+      now treats each invalid byte of a UTF-8 string as <code>U+FFFD</code>.
     </p>
   </dd>
 </dl><!-- regexp -->