Added the constant CI_CORE to help differentiate between Core: TRUE and Reactor: FALSE.
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 815590d..159f1a6 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -67,6 +67,7 @@
<li>General changes
<ul>
<li>Added <kbd>$config['cookie_secure']</kbd> to the config file to allow requiring a secure (HTTPS) in order to set cookies.</li>
+ <li class="reactor">Added the constant <kbd>CI_CORE</kbd> to help differentiate between Core: TRUE and Reactor: FALSE.</li>
</ul>
</li>
<li>Libraries