diff --git a/winsup/doc/ChangeLog b/winsup/doc/ChangeLog
index 3fbc13251..561e29d01 100644
--- a/winsup/doc/ChangeLog
+++ b/winsup/doc/ChangeLog
@@ -1,3 +1,7 @@
+2013-06-24  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>
+
+	* new-features.sgml (ov-new1.7.21): New section. Document rawmemchr.
+
 2013-06-19  Corinna Vinschen  <corinna@vinschen.de>
 
 	* faq-using.xml (faq.using.private-cygwin): Drop.
diff --git a/winsup/doc/new-features.xml b/winsup/doc/new-features.xml
index 8ae6858bf..e24a467c9 100644
--- a/winsup/doc/new-features.xml
+++ b/winsup/doc/new-features.xml
@@ -4,6 +4,18 @@
 
 <sect1 id="ov-new1.7"><title>What's new and what changed in Cygwin 1.7</title>
 
+<sect2 id="ov-new1.7.21"><title>What's new and what changed from 1.7.20 to 1.7.21</title>
+
+<itemizedlist mark="bullet">
+
+<listitem><para>
+New API: rawmemchr.
+</para></listitem>
+
+</itemizedlist>
+
+</sect2>
+
 <sect2 id="ov-new1.7.19"><title>What's new and what changed from 1.7.18 to 1.7.19</title>
 
 <itemizedlist mark="bullet">