diff --git a/properties.gradle b/properties.gradle
index 012cd808f..004e332d6 100644
--- a/properties.gradle
+++ b/properties.gradle
@@ -2,8 +2,8 @@
 ext {
   xslTNGtitle = 'DocBook xslTNG'
   xslTNGbaseName = 'docbook-xslTNG'
-  xslTNGversion = '2.1.6'
-  guideVersion = '2.1.6'
+  xslTNGversion = '2.1.7'
+  guideVersion = '2.1.7'
   guidePrerelease = false
 
   docbookVersion = '5.2CR5'
diff --git a/src/guide/xml/changelog.xml b/src/guide/xml/changelog.xml
index cb3cd735c..e642c13fa 100644
--- a/src/guide/xml/changelog.xml
+++ b/src/guide/xml/changelog.xml
@@ -10,6 +10,31 @@ be of interest to users of the stylesheets. See the commits and pull requests on
 <link xlink:href="https://github.com/docbook/xslTNG/">the repository</link> for
 finer detail.</para>
 
+<section xml:id="r217">
+<info>
+  <title>Changes in version 2.1.7</title>
+  <productnumber>2.1.7</productnumber>
+  <date>2023-07-29</date>
+</info>
+<itemizedlist>
+<listitem>
+<para>Tweaks to <filename>presentation.js</filename> to make sure
+revealed elements are in view.</para>
+</listitem>
+<listitem>
+<para>Tweaks to the bundled PrismJS to support (not especially well)
+syntax highlighting Invisible XML.</para>
+</listitem>
+<listitem>
+<para>CSS improvements for footnote rendering in paged media.</para>
+</listitem>
+<listitem>
+<para>First attempt to support <link xlink:href="https://vivliostyle.org/">Vivliostyle</link>
+for rendering paged media.</para>
+</listitem>
+</itemizedlist>
+</section>
+
 <section xml:id="r216">
 <info>
   <title>Changes in version 2.1.6</title>