diff --git a/documentation/mega-manual/figures/sdk.png b/documentation/mega-manual/figures/sdk.png
index 8136760b3a..5c36b7548b 100644
Binary files a/documentation/mega-manual/figures/sdk.png and b/documentation/mega-manual/figures/sdk.png differ
diff --git a/documentation/ref-manual/closer-look.xml b/documentation/ref-manual/closer-look.xml
index f90f4aa310..2cbc10605a 100644
--- a/documentation/ref-manual/closer-look.xml
+++ b/documentation/ref-manual/closer-look.xml
@@ -1300,9 +1300,9 @@
             In the
             <link linkend='general-yocto-environment-figure'>general Yocto Project Development Environment figure</link>,
             the output labeled "Application Development SDK" represents an
-            SDK.
+            SDK (standard or extensible).
             This section is going to take a closer look at this output:
-            <imagedata fileref="figures/sdk.png" align="center" width="6in" depth="5in" scalefit="100" />
+            <imagedata fileref="figures/sdk.png" align="center" />
         </para>
 
         <para>
@@ -1325,12 +1325,8 @@
             <para>
                 The Yocto Project supports several methods by which you can
                 set up this cross-development environment.
-                These methods include downloading pre-built SDK installers,
-                building and installing your own SDK installer, or running
-                an Application Development Toolkit (ADT) installer to
-                install not just cross-development toolchains
-                but also additional tools to help in this type of
-                development.
+                These methods include downloading pre-built SDK installers
+                or building and installing your own SDK installer.
             </para>
 
             <para>
@@ -1340,8 +1336,7 @@
                 section.
                 For information on setting up a cross-development
                 environment, see the
-                "<ulink url='&YOCTO_DOCS_ADT_URL;#installing-the-adt'>Installing the ADT and Toolchains</ulink>"
-                section in the Yocto Project Application Developer's Guide.
+                <ulink url='&YOCTO_DOCS_SDK_URL;#sdk-manual'>Yocto Project Software Development Kit (SDK) Developer's Guide</ulink>.
             </para>
         </note>
 
@@ -1350,7 +1345,10 @@
             <filename>deploy/sdk</filename> folder inside the
             <ulink url='&YOCTO_DOCS_DEV_URL;#build-directory'>Build Directory</ulink>
             as shown in the figure at the beginning of this section.
-            Several variables exist that help configure these files:
+            Depending on the type of SDK, several variables exist that help
+            configure these files.
+            The following list shows the variables associated with a standard
+            SDK:
             <itemizedlist>
                 <listitem><para><link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>:
                     Points to the <filename>deploy</filename>
@@ -1384,6 +1382,36 @@
                     installation script.
                     </para></listitem>
             </itemizedlist>
+            This next list, shows the variables associated with an extensible
+            SDK:
+            <itemizedlist>
+                <listitem><para><link linkend='var-DEPLOY_DIR'><filename>DEPLOY_DIR</filename></link>:
+                    Points to the <filename>deploy</filename> directory.
+                    </para></listitem>
+                <listitem><para><link linkend='var-SDK_EXT_TYPE'><filename>SDK_EXT_TYPE</filename></link>:
+                    Specifies the required shared state artifacts for the
+                    extensible SDK.
+                    By default, all required shared state artifacts are copied
+                    into the SDK.
+                    </para></listitem>
+                <listitem><para><link linkend='var-SDK_INCLUDE_PKGDATA'><filename>SDK_INCLUDE_PKGDATA</filename></link>:
+                    Includes as part of the extensible SDK the packagedata for
+                    all recipes in the "world" target.
+                    </para></listitem>
+                <listitem><para><link linkend='var-SDK_LOCAL_CONF_WHITELIST'><filename>SDK_LOCAL_CONF_WHITELIST</filename></link>:
+                    A list of variables allowed through from the build system
+                    configuration into the extensible SDK configuration.
+                    </para></listitem>
+                <listitem><para><link linkend='var-SDK_LOCAL_CONF_BLACKLIST'><filename>SDK_LOCAL_CONF_BLACKLIST</filename></link>:
+                    A list of variables allowed through from the build system
+                    configuration into the extensible SDK configuration.
+                    </para></listitem>
+                <listitem><para><link linkend='var-SDK_INHERIT_BLACKLIST'><filename>SDK_INHERIT_BLACKLIST</filename></link>:
+                    A list of classes to remove from the
+                    <link linkend='var-INHERIT'><filename>INHERIT</filename></link>
+                    value globally within the extensible SDK configuration.
+                    </para></listitem>
+            </itemizedlist>
         </para>
     </section>
 
diff --git a/documentation/ref-manual/figures/sdk.png b/documentation/ref-manual/figures/sdk.png
index 8136760b3a..5c36b7548b 100644
Binary files a/documentation/ref-manual/figures/sdk.png and b/documentation/ref-manual/figures/sdk.png differ