doc/go1.15.html | 10 ++++++++++

diff --git a/doc/go1.15.html b/doc/go1.15.html
index 448a507f6abae90732d8e35bb0c6f0b873eb6f9f..b9c63e2f0db6f5791c1f75ae0333c7d0d32097b8 100644
--- a/doc/go1.15.html
+++ b/doc/go1.15.html
@@ -703,6 +703,16 @@     </p>
   </dd>
 </dl><!-- math/big -->
 
+<dl id="math/cmplx"><dt><a href="/pkg/math/cmplx/">math/cmplx</a></dt>
+  <dd>
+    <p><!-- CL 220689 -->
+      The functions in this package were updated to conform to the C99 standard
+      (Annex G IEC 60559-compatible complex arithmetic) with respect to handling
+      of special arguments such as infinity, NaN and signed zero.
+    </p>
+  </dd>
+</dl><!-- math/cmplx-->
+
 <dl id="net"><dt><a href="/pkg/net/">net</a></dt>
   <dd>
     <p><!-- CL 228645 -->