doc/go1.18: add changes to regexp to release notes

CL 354569

Updates #47694

Change-Id: I78536c110215b3c9f247c1420bcaa5fc3d8fb930
Reviewed-on: https://go-review.googlesource.com/c/go/+/368795
Trust: Jeremy Faller <jeremy@golang.org>
Run-TryBot: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

diff --git a/doc/go1.18.html b/doc/go1.18.html
index 15cec4e1f06bb8a5d93530d0238a115c92997635..82facf384526d340e21c558fed1bb31103217b29 100644 (file)
--- 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 -->