diff --git a/doc/go1.17.html b/doc/go1.17.html
index 3e9587dbf7b..9d775e169ae 100644
--- a/doc/go1.17.html
+++ b/doc/go1.17.html
@@ -628,6 +628,14 @@ Do not send CLs removing the interior tags from such phrases.
     <p><!-- CL 310033 -->
       TODO: <a href="https://golang.org/cl/310033">https://golang.org/cl/310033</a>: add -shuffle=off|on|N to alter the execution order of tests and benchmarks
     </p>
+
+    <p><!-- CL 260577 -->
+      The new
+      <a href="/pkg/testing/#T.Setenv"><code>T.Setenv</code></a>
+      and <a href="/pkg/testing/#B.Setenv"><code>B.Setenv</code></a>
+      methods support setting an environment variable for the duration
+      of the test or benchmark.
+    </p>
   </dd>
 </dl><!-- testing -->