diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index dfde918..bbc205a 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -77,7 +77,7 @@
 </ul>
 
 
-<h2>Version 1.5.0.2</h2>
+<h2>Version 1.5.1</h2>
 <p>Release Date: November 23, 2006</p>
 <ul>
     <li>Added support for submitting arrays of libraries in the $this-&gt;load-&gt;library function.</li>
diff --git a/user_guide/installation/upgrade_152.html b/user_guide/installation/upgrade_152.html
index 730b6f3..947cd71 100644
--- a/user_guide/installation/upgrade_152.html
+++ b/user_guide/installation/upgrade_152.html
@@ -86,6 +86,7 @@
 <li><dfn>system/libraries/Image_lib.php</dfn></li>
 <li><dfn>system/language/english/unit_test_lang.php</dfn></li>
 <li><dfn>system/database/DB_active_rec.php</dfn></li>
+<li><dfn> system/database/drivers/mysqli/mysqli_driver.php</dfn></li>
 <li><dfn>codeigniter/</dfn></li>
 </ul>