docs: add Message Changes in changelogs

Author: kenjis

user_guide_src/source/changelogs/v4.2.2.rst

@@ -18,6 +18,11 @@ BREAKING
 - A bug that caused pages to be cached before after filters were executed when using page caching has been fixed. Adding response headers or changing the response body in after filters now caches them correctly.
 - Due to a bug fix, now :php:func:`random_string()` with the first parameter ``'crypto'`` throws ``InvalidArgumentException`` if the second parameter ``$len`` is an odd number.
 
+Message Changes
+***************
+
+- Fixed ``invalidRoute`` message in ``Language/en/HTTP.php``.
+
 Changes
 *******
 

user_guide_src/source/changelogs/v4.2.7.rst

@@ -24,7 +24,8 @@ none.
 Message Changes
 ***************
 
-- Added missing item ``valid_json`` in ``Language/en/Validation.php``
+- Fixed typos in some items in ``Language/en/Email.php``.
+- Added missing item ``valid_json`` in ``Language/en/Validation.php``.
 
 Changes
 *******