diff --git a/release/doc/en_US.ISO8859-1/relnotes/article.xml b/release/doc/en_US.ISO8859-1/relnotes/article.xml
index e96a11e329ca..5f572b025c93 100644
--- a/release/doc/en_US.ISO8859-1/relnotes/article.xml
+++ b/release/doc/en_US.ISO8859-1/relnotes/article.xml
@@ -861,6 +861,10 @@
 	driver has been added, which supports <acronym>CPU</acronym>
 	frequency and voltage control on the Raspberry Pi
 	<acronym>SOC</acronym>.</para>
+
+      <para revision="280259" contrib="sponsor" sponsor="&ff;">Initial
+	support for the ARM AArch64 architecture has been
+	added.</para>
     </sect2>
   </sect1>
 
diff --git a/release/doc/share/xml/release.ent b/release/doc/share/xml/release.ent
index e02a5f647b27..f72b4d0cc224 100644
--- a/release/doc/share/xml/release.ent
+++ b/release/doc/share/xml/release.ent
@@ -70,6 +70,7 @@
 <!-- Architecture names -->
 <!ENTITY arch.amd64 "amd64">
 <!ENTITY arch.arm "arm">
+<!ENTITY arch.arm64 "aarch64">
 <!ENTITY arch.i386 "i386">
 <!ENTITY arch.mips "mips">
 <!ENTITY arch.pc98 "pc98">