Prepare for release candidate

Author: garydgregory

src/site/site.xml

@@ -27,17 +27,8 @@
             <item name="Overview"        href="/index.html"/>
             <item name="Download"        href="https://commons.apache.org/codec/download_codec.cgi"/>
             <item name="Users guide"     href="/userguide.html"/>
-            <item name="Javadoc current" href="/apidocs/index.html"/>
-            <item name="Javadoc 1.16"    href="/archives/1.16/apidocs/index.html"/>
-            <item name="Javadoc 1.15"    href="/archives/1.15/apidocs/index.html"/>
-            <item name="Javadoc 1.14"    href="/archives/1.14/apidocs/index.html"/>
-            <item name="Javadoc 1.13"    href="/archives/1.13/apidocs/index.html"/>
-            <item name="Javadoc 1.12"    href="/archives/1.12/apidocs/index.html"/>
-            <item name="Javadoc 1.11"    href="/archives/1.11/apidocs/index.html"/>
-            <item name="Javadoc 1.10"    href="/archives/1.10/apidocs/index.html"/>
-            <item name="Javadoc 1.9"     href="/archives/1.9/apidocs/index.html"/>
-            <item name="Javadoc 1.8"     href="/archives/1.8/apidocs/index.html"/>
-            <item name="Javadoc 1.7"     href="/archives/1.7/apidocs/index.html"/>
+            <item name="Javadoc Current" href="/apidocs/index.html"/>
+            <item name="Javadoc Archive" href="https://javadoc.io/doc/commons-codec/commons-codec"/>
         </menu>
 
         <menu name="Development">

src/site/xdoc/index.xml

@@ -71,17 +71,8 @@ Various <a href="project-reports.html">project reports</a> are also available.
 The Javadoc API documents are available online:
 </p>
 <ul>
-  <li><a href="apidocs/index.html">Javadoc current (git master)</a></li>
-  <li><a href="archives/1.16/apidocs/index.html">Javadoc 1.16</a></li>
-  <li><a href="archives/1.15/apidocs/index.html">Javadoc 1.15</a></li>
-  <li><a href="archives/1.14/apidocs/index.html">Javadoc 1.14</a></li>
-  <li><a href="archives/1.13/apidocs/index.html">Javadoc 1.13</a></li>
-  <li><a href="archives/1.12/apidocs/index.html">Javadoc 1.12</a></li>
-  <li><a href="archives/1.11/apidocs/index.html">Javadoc 1.11</a></li>
-  <li><a href="archives/1.10/apidocs/index.html">Javadoc 1.10</a></li>
-  <li><a href="archives/1.9/apidocs/index.html">Javadoc 1.9</a></li>
-  <li><a href="archives/1.8/apidocs/index.html">Javadoc 1.8</a></li>
-  <li><a href="archives/1.7/apidocs/index.html">Javadoc 1.7</a></li>
+  <li><a href="apidocs/index.html">Javadoc latest version</a></li>
+  <li><a href="https://javadoc.io/doc/commons-codec/commons-codec">Javadoc archive</a></li>
 </ul>
 <p>
 The <a href="scm.html">subversion repository</a> can be
@@ -91,18 +82,8 @@ The <a href="scm.html">subversion repository</a> can be
 <!-- ================================================== -->
 <section name="Releases">
 <ul>
-  <li><a href="https://commons.apache.org/codec/download_codec.cgi">Codec 1.16 (mirrors)</a> requires Java 8</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.15 (archives)</a> requires Java 7</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.14 (archives)</a> requires Java 7</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.13 (archives)</a> requires Java 7</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.12 (archives)</a> requires Java 7</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.11 (archives)</a> requires Java 6</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.10 (archives)</a> requires Java 6</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.9 (archives)</a> requires Java 6</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.8 (archives)</a> requires Java 6</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.7 (archives)</a> requires Java 6</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.6 (archives)</a> requires Java 5</li>
-  <li><a href="https://archive.apache.org/dist/commons/codec/">Codec 1.5 (archives)</a> requires Java 1.4</li>
+  <li><a href="https://commons.apache.org/codec/download_codec.cgi">Download latest version (mirrors)</a> requires Java 8</li>
+  <li><a href="https://archive.apache.org/dist/commons/codec/">Download archive</a></li>
 </ul>
 <p>
 See the