diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 8498918..4f30a9a 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -608,6 +608,7 @@
 -  Fixed a bug (#2585) - :doc:`Query Builder <database/query_builder>` methods ``min()``, ``max()``, ``avg()``, ``sum()`` didn't escape field names.
 -  Fixed an edge case (#2583) in the :doc:`Email Library <libraries/email>` where `Suhosin <http://www.hardened-php.net/suhosin/>` blocked messages sent via ``mail()`` due to trailing newspaces in headers.
 -  Fixed a bug (#2590) - :php:func:`log_message()` didn't actually cache the ``CI_Log`` class instance.
+-  Fixed a bug (#2609) - :php:func:`get_config()` optional argument was only effective on first function call. Also, it can now add items, in addition to updating existing items.
 
 Version 2.1.4
 =============