diff --git a/icu4c/APIChangeReport.html b/icu4c/APIChangeReport.html
index 5fd720da6c3..0483c4336a2 100644
--- a/icu4c/APIChangeReport.html
+++ b/icu4c/APIChangeReport.html
@@ -5,12 +5,12 @@
 	-->
 <head>
 <META http-equiv="Content-Type" content="text/html; charset=utf-8">
-<title>ICU4C API Comparison: ICU 63 with ICU 64</title>
+<title>ICU4C API Comparison: ICU 63 with ICU 64 (update #1: 64.2)</title>
 <link type="text/css" href="icu4c.css" rel="stylesheet">
 </head>
 <body>
 <a name="#_top"></a>
-<h1>ICU4C API Comparison: ICU 63 with ICU 64</h1>
+<h1>ICU4C API Comparison: ICU 63 with ICU 64 (update #1: 64.2)</h1>
 <div id="toc">
 <ul>
 <li>
@@ -94,6 +94,10 @@
 <span class=""><span></span></span></td>
 </tr>
 <tr class="row1">
+<td class="file">numsys.h</td><td class="proto"><tt>#define</tt> NUMSYS_NAME_CAPACITY</td><td class="">Internal</td><td>(missing)<br>
+<span class=""><span></span></span></td>
+</tr>
+<tr class="row0">
 <td class="file">unistr.h</td><td class="proto">UnicodeString&amp; icu::UnicodeString::moveFrom(UnicodeString&amp;)</td><td class="">Draft<br>ICU 56</td><td>(missing)<br>
 <span class=""><span></span></span></td>
 </tr>
@@ -2527,7 +2531,7 @@
 <a href="#_top">(jump back to top)</a>
 <hr>
 <p>
-<i><font size="-1">Contents generated by StableAPI tool on Sun Mar 24 10:57:24 PDT 2019<br>Copyright (C) 2019, International Business Machines Corporation, All Rights Reserved.</font></i>
+<i><font size="-1">Contents generated by StableAPI tool on Fri Apr 05 10:36:27 PDT 2019<br>Copyright (C) 2019, International Business Machines Corporation, All Rights Reserved.</font></i>
 </p>
 </body>
 </html>
