diff --git a/doc/history.adoc b/doc/history.adoc
index d3fb5c4..1746fbb 100644
--- a/doc/history.adoc
+++ b/doc/history.adoc
@@ -1,5 +1,5 @@
 ////
-Copyright 2014-2020 Rene Rivera
+Copyright 2014-2021 Rene Rivera
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)
@@ -9,6 +9,11 @@ http://www.boost.org/LICENSE_1_0.txt)
 
 == 1.13
 
+* Add `ARCH_PPC_64` predef.
+* Fix `ARCH_WORD_BITS*` redefinition warnings/errors.
+* Add `ARCH_E2K`, Elbrus 2000, architecture from Konstantin Ivlev.
+* Fix not handling recent C++ version that go above 10.x version.
+
 == 1.12
 
 * Switch to using the endian.h header on OpenBSD. (Brad Smith)
diff --git a/doc/index.html b/doc/index.html
index 8ff0a36..c7bde8c 100644
--- a/doc/index.html
+++ b/doc/index.html
@@ -6939,7 +6939,22 @@ expressions. It defaults to "c++", but can be any of: "c", "cpp",
 <div class="sectionbody">
 <div class="sect2">
 <h3 id="_1_13"><a class="anchor" href="#_1_13"></a>6.1. 1.13</h3>
-
+<div class="ulist">
+<ul>
+<li>
+<p>Add <code>ARCH_PPC_64</code> predef.</p>
+</li>
+<li>
+<p>Fix <code>ARCH_WORD_BITS*</code> redefinition warnings/errors.</p>
+</li>
+<li>
+<p>Add <code>ARCH_E2K</code>, Elbrus 2000, architecture from Konstantin Ivlev.</p>
+</li>
+<li>
+<p>Fix not handling recent C++ version that go above 10.x version.</p>
+</li>
+</ul>
+</div>
 </div>
 <div class="sect2">
 <h3 id="_1_12"><a class="anchor" href="#_1_12"></a>6.2. 1.12</h3>