diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index a5aee232c..1d63fc83a 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -39,6 +39,10 @@
     <listitem>
       <para>2012-12-28</para>
       <itemizedlist>
+        <listitem>
+          <para>[matthew] - Upgrade to Tcl-8.6.0.  Fixes
+          <ulink url="&lfs-ticket-root;3257">#3257</ulink>.</para>
+        </listitem>
         <listitem>
           <para>[matthew] - Upgrade to Man-Pages-3.45.  Fixes
           <ulink url="&lfs-ticket-root;3256">#3256</ulink>.</para>
diff --git a/chapter01/whatsnew.xml b/chapter01/whatsnew.xml
index c3864dd62..bd18ec6dc 100644
--- a/chapter01/whatsnew.xml
+++ b/chapter01/whatsnew.xml
@@ -187,9 +187,9 @@
     <!--<listitem>
       <para>Tar &tar-version;</para>
     </listitem>-->
-    <!--<listitem>
+    <listitem>
       <para>TCL &tcl-version;</para>
-    </listitem>-->
+    </listitem>
     <!--<listitem>
       <para>Texinfo &texinfo-version;</para>
     </listitem>-->
diff --git a/chapter05/tcl.xml b/chapter05/tcl.xml
index 8384b5ea0..54f09f82d 100644
--- a/chapter05/tcl.xml
+++ b/chapter05/tcl.xml
@@ -79,7 +79,7 @@
     <para>Make the installed library writable so debugging symbols can
     be removed later:</para>
 
-<screen><userinput remap="install">chmod -v u+w /tools/lib/libtcl8.5.so</userinput></screen>
+<screen><userinput remap="install">chmod -v u+w /tools/lib/libtcl&tcl-major-version;.so</userinput></screen>
 
     <para>Install Tcl's headers. The next package, Expect, requires them
     to build.</para>
@@ -88,7 +88,7 @@
 
     <para>Now make a necessary symbolic link:</para>
 
-<screen><userinput remap="install">ln -sv tclsh8.5 /tools/bin/tclsh</userinput></screen>
+<screen><userinput remap="install">ln -sv tclsh&tcl-major-version; /tools/bin/tclsh</userinput></screen>
 
   </sect2>
 
diff --git a/packages.ent b/packages.ent
index 5c9e19157..1af83f305 100644
--- a/packages.ent
+++ b/packages.ent
@@ -505,11 +505,11 @@
 <!ENTITY tar-ch6-du "34 MB">
 <!ENTITY tar-ch6-sbu "2.4 SBU">
 
-<!ENTITY tcl-version "8.5.13">
-<!ENTITY tcl-major-version "8.5">
-<!ENTITY tcl-size "4,407 KB">
+<!ENTITY tcl-version "8.6.0">
+<!ENTITY tcl-major-version "8.6">
+<!ENTITY tcl-size "8,435 KB">
 <!ENTITY tcl-url "&sourceforge;tcl/tcl&tcl-version;-src.tar.gz">
-<!ENTITY tcl-md5 "fa3a9bf9b2d6ed2431f1baa46f4058b8">
+<!ENTITY tcl-md5 "573aa5fe678e9185ef2b3c56b24658d3">
 <!ENTITY tcl-home "http://tcl.sourceforge.net/">
 <!ENTITY tcl-ch5-du "33 MB">
 <!ENTITY tcl-ch5-sbu "0.4 SBU">