diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index bbe09a188..d9613bff7 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -42,6 +42,16 @@
     <listitem revision="sysv"> or <listitem revision="systemd"> as
     appropriate for the entry or if needed the entire day's listitem.
 -->
+    <listitem>
+      <para>2017-12-26</para>
+      <itemizedlist>
+        <listitem>
+          <para>[bdubbs] - Update to tcl-8.6.8. Fixes
+          <ulink url="&lfs-ticket-root;4183">#4183</ulink>.</para>
+        </listitem>
+      </itemizedlist>
+    </listitem>
+
     <listitem>
       <para>2017-12-25</para>
       <itemizedlist>
diff --git a/chapter01/whatsnew.xml b/chapter01/whatsnew.xml
index cf7ce293e..70a8aa012 100644
--- a/chapter01/whatsnew.xml
+++ b/chapter01/whatsnew.xml
@@ -215,9 +215,9 @@
     <listitem>
       <para>Tar-&tar-version;</para>
     </listitem>
-    <!--<listitem>
+    <listitem>
       <para>Tcl-core-&tcl-version;</para>
-    </listitem>-->
+    </listitem>
     <listitem>
       <para>Texinfo-&texinfo-version;</para>
     </listitem>
diff --git a/general.ent b/general.ent
index bb576f5e0..13badd862 100644
--- a/general.ent
+++ b/general.ent
@@ -1,13 +1,13 @@
-<!ENTITY version         "SVN-20171225">
+<!ENTITY version         "SVN-20171226">
 <!ENTITY short-version   "svn">  <!-- Used below in &blfs-book; 
                                       Change to x.y for release but not -rc releases -->
 <!ENTITY generic-version "development"> <!-- Use "development"  or "x.y[-pre{x}]" -->
 
-<!ENTITY versiond        "20171225-systemd">
+<!ENTITY versiond        "20171226-systemd">
 <!ENTITY short-versiond  "systemd">
 <!ENTITY generic-versiond "systemd"> 
 
-<!ENTITY releasedate     "December 25, 2017">
+<!ENTITY releasedate     "December 26, 2017">
 
 <!ENTITY copyrightdate   "1999-2017"><!-- jhalfs needs a literal dash, not &ndash; -->
 <!ENTITY milestone       "8.2">
diff --git a/packages.ent b/packages.ent
index 76cdbb89c..f75da7d2b 100644
--- a/packages.ent
+++ b/packages.ent
@@ -622,11 +622,11 @@
 <!ENTITY tar-ch6-du "39 MB">
 <!ENTITY tar-ch6-sbu "2.6 SBU">
 
-<!ENTITY tcl-version "8.6.7">
+<!ENTITY tcl-version "8.6.8">
 <!ENTITY tcl-major-version "8.6">
-<!ENTITY tcl-size "5,738 KB">
+<!ENTITY tcl-size "5,750 KB">
 <!ENTITY tcl-url "http://sourceforge.net/projects/tcl/files/Tcl/&tcl-version;/tcl-core&tcl-version;-src.tar.gz">
-<!ENTITY tcl-md5 "3f723d62c2e074bdbb2ddf330b5a71e1">
+<!ENTITY tcl-md5 "9804911b9ac76f76d698f28894af6c55">
 <!ENTITY tcl-home "http://tcl.sourceforge.net/">
 <!ENTITY tcl-ch5-du "42 MB">
 <!ENTITY tcl-ch5-sbu "0.4 SBU">