diff --git a/ChangeLog b/ChangeLog
index 7ed9f280..690b03a0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -16707,3 +16707,7 @@
 	characters added to the interior of existing strings.
 2018-10-06 Fred Gleason <fredg@paravelsystems.com>
 	* Incremented the package version to 2.19.2int05.
+2018-10-08 Fred Gleason <fredg@paravelsystems.com>
+	* Updated the copyright of the Operations Guide.
+	* Documented GPIO support for AudioScience cards in the
+	'Local Audio Adapter' section of the Operations Guide.
diff --git a/docs/opsguide/Makefile.am b/docs/opsguide/Makefile.am
index b8fa0bcf..150af1da 100644
--- a/docs/opsguide/Makefile.am
+++ b/docs/opsguide/Makefile.am
@@ -56,6 +56,7 @@ OPSGUIDE_HTML = appendix.filepath_wildcards.html\
                 sect.gpio_switcher_devices.btsrc16.html\
                 sect.gpio_switcher_devices.btss124.html\
                 sect.gpio_switcher_devices.btss164.html\
+                sect.gpio_switcher_devices.btss21.html\
                 sect.gpio_switcher_devices.btss41mlr.html\
                 sect.gpio_switcher_devices.btss42.html\
                 sect.gpio_switcher_devices.btss44.html\
@@ -274,6 +275,7 @@ OPSGUIDE_ICONS = chain.png\
 OPSGUIDE_DEPS = $(OPSGUIDE_IMAGES) \
                 $(OPSGUIDE_ICONS) \
                 filepath_wildcards.xml\
+                frontspiece.xml\
                 gpio_switcher_devices.xml\
                 gplv2.xml\
                 opsguide.xml\
diff --git a/docs/opsguide/frontspiece.xml.in b/docs/opsguide/frontspiece.xml.in
index e8e7a987..e03b2ec6 100644
--- a/docs/opsguide/frontspiece.xml.in
+++ b/docs/opsguide/frontspiece.xml.in
@@ -9,7 +9,7 @@
   <edition>
     @VERSION@
   </edition>
-  <copyright><year>-2003-2017</year><holder>Fred Gleason</holder></copyright>
+  <copyright><year>2003-2018</year><holder>Fred Gleason</holder></copyright>
   <mediaobject>
     <imageobject>
       <imagedata fileref="../../icons/rivendell-512x512.png" scale="80"/>
diff --git a/docs/opsguide/gpio_switcher_devices.xml b/docs/opsguide/gpio_switcher_devices.xml
index b95557c3..b571c5d8 100644
--- a/docs/opsguide/gpio_switcher_devices.xml
+++ b/docs/opsguide/gpio_switcher_devices.xml
@@ -1040,7 +1040,12 @@
       <computeroutput>Inputs:</computeroutput> and
       <computeroutput>Outputs:</computeroutput> fields to the
       number of inputs and outputs on the card (as found in
-      <code>RDADmin->ManageHosts->AudioResources</code>.
+      <code>RDADmin->ManageHosts->AudioResources</code>).
+    </para>
+    <para>
+      For AudioScience cards that include onboard GPIO (such as the
+      ASI67xx series), the GPIO resources on the card will also be
+      available via the this driver.
     </para>
   </sect1>