diff --git a/doc/go1.12.html b/doc/go1.12.html
index 41ebd50cb2..d3cbeb4525 100644
--- a/doc/go1.12.html
+++ b/doc/go1.12.html
@@ -329,6 +329,11 @@ for {
   yet supported on Windows.
 </p>
 
+<p><!-- CL 158337 -->
+  Go 1.12 improves the accuracy of memory profiles by fixing
+  overcounting of large heap allocations.
+</p>
+
 <h2 id="library">Core library</h2>
 
 <h3 id="tls_1_3">TLS 1.3</h3>