[ci skip] Add a changelog entry for #4815, PR #5023
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index ed1f186..8283f53 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -33,6 +33,7 @@
 -  Fixed a bug where :doc:`Input Library <libraries/input>` method ``set_cookie()`` didn't allow its *httponly* and *secure* parameters to be overriden to ``FALSE``.
 -  Fixed a bug (#5006) - :doc:`common function <general/common_functions>` :php:func:`get_mimes()` didn't load *application/config/mimes.php* if an environment specific config exists.
 -  Fixed a bug (#5006) - :doc:`common function <general/common_functions>` :php:func:`remove_invisible_characters()` didn't remove URL-encoded ``0x7F``.
+-  Fixed a bug (#4815) - :doc:`Database Library <database/index>` stripped URL-encoded sequences while escaping strings with the 'mssql' driver.
 
 Version 3.1.3
 =============