updated changelog
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index ba13808..8dd64a3 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -114,6 +114,7 @@
<h3>Bug fixes for 2.1.0</h3>
<ul>
+ <li class="reactor">Unlink raised an error if cache file did not exist when you try to delete it.</li>
<li class="reactor">Fixed #378 Robots identified as regular browsers by the User Agent class.</li>
<li class="reactor">If a config class was loaded first then a library with the same name is loaded, the config would be ignored.</li>
<li class="reactor">Fixed a bug (Reactor #19) where 1) the 404_override route was being ignored in some cases, and 2) auto-loaded libraries were not available to the 404_override controller when a controller existed but the requested method did not.</li>