ICU-20515 Update readme files

diff --git a/icu4c/readme.html b/icu4c/readme.html
index 41d2903..f55c6b5 100644
--- a/icu4c/readme.html
+++ b/icu4c/readme.html

@@ -3,7 +3,7 @@
 
 <html lang="en-US" xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
   <head>
-    <title>ReadMe for ICU 64.1</title>
+    <title>ReadMe for ICU 64.2</title>
     <meta name="COPYRIGHT" content=
     "Copyright (C) 2016 and later: Unicode, Inc. and others. License &amp; terms of use: http://www.unicode.org/copyright.html"/>
     <!-- meta name="COPYRIGHT" content=
@@ -32,7 +32,7 @@
       International Components for Unicode<br/>
       <span class="only-rc">Release Candidate</span>
       <span class="only-milestone">(Milestone Release)</span>
-      <abbr title="International Components for Unicode">ICU</abbr> 64.1 ReadMe
+      <abbr title="International Components for Unicode">ICU</abbr> 64.2 ReadMe
     </h1>
 
     <!-- Shouldn't need to comment/uncomment this paragraph, just change the body class -->
@@ -44,7 +44,7 @@
     <p class="note only-rc">This is a release candidate version of ICU4C.
       It is not recommended for production use.</p>
 
-    <p>Last updated: 2019-Mar-18<br/>
+    <p>Last updated: 2019-Apr-04<br/>
       Copyright &copy; 2016 and later: Unicode, Inc. and others. License &amp; terms of use:
       <a href="http://www.unicode.org/copyright.html">http://www.unicode.org/copyright.html</a><br/>
       Copyright &copy; 1997-2016 International Business Machines Corporation and others.

diff --git a/icu4j/readme.html b/icu4j/readme.html
index 03f8951..37169a2 100644
--- a/icu4j/readme.html
+++ b/icu4j/readme.html

@@ -14,8 +14,8 @@
 <body style="background-color: rgb(255, 255, 255);" lang="EN-US"
  link="#0000ff" vlink="#800080">
 <h1>International Components for Unicode for Java (ICU4J)</h1>
-<h2>Read Me for ICU4J 64.1</h2>
-(Last Update: 2019-Mar-18)
+<h2>Read Me for ICU4J 64.2</h2>
+(Last Update: 2019-Apr-04)
 <hr size="2" width="100%">
 
 <p>
@@ -182,19 +182,19 @@
 &lt;dependency&gt;
     &lt;groupId&gt;com.ibm.icu&lt;/groupId&gt;
     &lt;artifactId&gt;icu4j&lt;/artifactId&gt;
-    &lt;version&gt;64.1&lt;/version&gt;
+    &lt;version&gt;64.2&lt;/version&gt;
 &lt;/dependency&gt;
 
 &lt;dependency&gt;
     &lt;groupId&gt;com.ibm.icu&lt;/groupId&gt;
     &lt;artifactId&gt;icu4j-charset&lt;/artifactId&gt;
-    &lt;version&gt;64.1&lt;/version&gt;
+    &lt;version&gt;64.2&lt;/version&gt;
 &lt;/dependency&gt;
 
 &lt;dependency&gt;
     &lt;groupId&gt;com.ibm.icu&lt;/groupId&gt;
     &lt;artifactId&gt;icu4j-localespi&lt;/artifactId&gt;
-    &lt;version&gt;64.1&lt;/version&gt;
+    &lt;version&gt;64.2&lt;/version&gt;
 &lt;/dependency&gt;
 </pre>
   </ul>
@@ -875,7 +875,7 @@
 <I> Note: This procedure assumes that all 3 sources are present</I>
 <ol>
     <li>Checkout or download CLDR version 'release-35'</li>
-    <li>Checkout ICU with tag 'release-64-1'</li>
+    <li>Checkout ICU with tag 'release-64-2'</li>
     <li>cd to icu4c/source/data directory</li>
     <li>Follow the instructions in icu4c/source/data/cldr-icu-readme.txt</li>
     <li>Rebuild ICU4C with the newly generated data.</li>