Add changelog entry for #2633.
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 3e36d88..a681cf3 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -436,6 +436,7 @@
- Added support for HTTP-Only cookies with new config option *cookie_httponly* (default FALSE).
- Renamed method ``_call_hook()`` to ``call_hook()`` in the :doc:`Hooks Library <general/hooks>`.
- ``$config['time_reference']`` now supports all timezone strings supported by PHP.
+ - Made the exception handler complete by registering a shutdown handler to redirect critical events to it.
Bug fixes for 3.0