diff --git a/release/doc/en_US.ISO8859-1/relnotes/article.xml b/release/doc/en_US.ISO8859-1/relnotes/article.xml
index 3c10bfa7ba4..1a2be783c51 100644
--- a/release/doc/en_US.ISO8859-1/relnotes/article.xml
+++ b/release/doc/en_US.ISO8859-1/relnotes/article.xml
@@ -433,6 +433,12 @@
 
       <para revision="276526">The <literal>asr(4)</literal> driver has
 	been removed, and is no longer supported.</para>
+
+      <para revision="275461" contrib="sponsor" sponsor="&ix;">The
+	&man.ctl.4; subsystem has been updated, increasing the ports
+	limit from <literal>128</literal> to <literal>256</literal>,
+	and <acronym>LUN</acronym> limit from <literal>256</literal>
+	to <literal>1024</literal>.</para>
     </sect3>
 
     <sect3 xml:id="fs">
diff --git a/release/doc/share/xml/sponsor.ent b/release/doc/share/xml/sponsor.ent
index dd7c0571bf1..f664919ac21 100644
--- a/release/doc/share/xml/sponsor.ent
+++ b/release/doc/share/xml/sponsor.ent
@@ -23,6 +23,8 @@
 
 <!ENTITY google		"Google">
 
+<!ENTITY ix		"iXsystems">
+
 <!ENTITY limelight	"Limelight Networks">
 <!ENTITY lsi		"LSI">