changing docs refs to future release 2.0.0
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 9b62dc8..a136234 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -28,7 +28,7 @@
 <div id="masthead">
 <table cellpadding="0" cellspacing="0" border="0" style="width:100%">
 <tr>
-<td><h1>CodeIgniter User Guide Version 1.7.2</h1></td>
+<td><h1>CodeIgniter User Guide Version 2.0.0</h1></td>
 <td id="breadcrumb_right"><a href="./toc.html">Table of Contents Page</a></td>
 </tr>
 </table>
@@ -57,9 +57,9 @@
 
 <h1>Change Log</h1>
 
-<h2>Version 1.7.3</h2>
+<h2>Version 2.0.0</h2>
 <p>Release Date: not yet released<br />
-SVN Revision: </p>
+Hg Tag: </p>
 
 <ul>
 	<li>Libraries
@@ -107,7 +107,7 @@
 	</li>
 </ul>
 
-<h3>Bug fixes for 1.7.3</h3>
+<h3>Bug fixes for 2.0.0</h3>
 <ul>
 	<li>Fixed assorted user guide typos or examples (#10693, #8951, #7825, #8660, #7883, #6771, #10656).</li>
 	<li>Fixed a language key in the profiler: "profiler_no_memory_usage" to "profiler_no_memory".</li>
@@ -126,7 +126,7 @@
 
 <h2>Version 1.7.2</h2>
 <p>Release Date: September 11, 2009<br />
-SVN Revision: 1737</p>
+Hg Tag: v1.7.2</p>
 
 <ul>
 	<li>Libraries
@@ -193,7 +193,7 @@
 
 <h2>Version 1.7.1</h2>
 <p>Release Date: February 10, 2009<br />
-SVN Revision: 1640</p>
+Hg Tag: 1.7.1</p>
 
 <ul>
 	<li>Libraries
@@ -277,7 +277,7 @@
 
 <h2>Version 1.7</h2>
 <p>Release Date: October 23, 2008<br />
-SVN Revision: 1541</p>
+Hg Tag: 1.7.0</p>
 
 <ul>
 	<li>Libraries
@@ -369,7 +369,8 @@
 
 <h2>Version 1.6.3</h2>
 <p>Release Date: June 26, 2008<br />
-SVN Revision: 1238</p>
+Hg Tag: v1.6.3</p>
+
 <p>Version 1.6.3 is a security and maintenance release and is recommended for all users.</p>
 <ul>
 	<li>Database
@@ -428,7 +429,7 @@
 
 <h2>Version 1.6.2</h2>
 <p>Release Date: May 13, 2008<br />
-SVN Revision: 1155</p>
+Hg Tag: 1.6.2</p>
 <ul>
 	<li>Active Record
 		<ul>
@@ -531,7 +532,7 @@
 
 <h2>Version 1.6.1</h2>
 <p>Release Date: February 12, 2008<br />
-	SVN Revision: 984</p>
+Hg Tag: 1.6.1</p>
 <ul>
 	<li>Active Record 
 		<ul>