Updating changelog
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 713f012..2ee3e8f 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -76,6 +76,7 @@
<ul>
<li>Semantic change to db->version() function to allow a list of exceptions for databases with functions to return version string instead of specially formed SQL queries. Currently this list only includes Oracle and SQLite.</li>
<li>Fixed a bug where driver specific table identifier protection could lead to malformed queries in the <kbd>field_data()</kbd> functions.</li>
+ <li>Fixed a bug where an undefined class variable was referenced in database drivers.</li>
</ul>
</li>
<li>Helpers