docs: add changelog

Author: kenjis

user_guide_src/source/changelogs/v4.4.8.rst

@@ -14,6 +14,11 @@ Release Date: Unreleased
 BREAKING
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+- A bug that caused the :doc:`Exception handler <../general/errors>` to display
+  incorrect error view file corresponding to the exception code has been fixed.
+  The third parameter ``int $statusCode = 500`` has been added to
+  ``CodeIgniter\Debug\ExceptionHandler::determineView()`` for this purpose.
+
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 Message Changes
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