added an additional newline for MUAs that require a double line break between multipart headers and the ignored MIME message area
http://codeigniter.com/bug_tracker/bug/6681/
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 504d2b4..1992ebb 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -70,6 +70,7 @@
<li>Added more accurate error reporting for the Email library when using sendmail.</li>
<li>Removed a strict type check from the <kbd>rotate()</kbd> function of the <a href="libraries/image_lib.html">Image Manipulation Class</a>.</li>
<li>Added enhanced error checking in file saving in the Image library when using the GD lib.</li>
+ <li>Added an additional newline between multipart email headers and the MIME message text for better compatibility with a variety of MUAs.</li>
</ul>
</li>
<li>Database