diff --git a/doc/go1.16.html b/doc/go1.16.html
index 1c22c21758..4d4b459009 100644
--- a/doc/go1.16.html
+++ b/doc/go1.16.html
@@ -58,6 +58,11 @@ Do not send CLs removing the interior tags from such phrases.
   the <code>ios</code> build tag set.
 </p>
 
+<p><!-- golang.org/issue/23011 -->
+  Go 1.16 is the last release that will run on macOS 10.12 Sierra.
+  Go 1.17 will require macOS 10.13 High Sierra or later.
+</p>
+
 <h3 id="netbsd">NetBSD</h3>
 
 <p><!-- golang.org/issue/30824 -->