Change log for IPv4 range mask support
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 68719ef..0436a86 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -204,7 +204,7 @@
    -  Changed :doc:`Config Library <libraries/config>` method site_url() to accept an array as well.
    -  Added method ``strip_image_tags()`` to the :doc:`Security Library <libraries/security>`.
    -  Changed ``_exception_handler()`` to respect php.ini 'display_errors' setting.
-
+   -  Added support for IPv4 range masks (e.g. 192.168.1.1/24) to specify ranges of IP addresses for use with the proxy_ips setting.
 
 Bug fixes for 3.0
 ------------------