Fix #4120
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index e4250a4..31e0b31 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -30,6 +30,7 @@
 -  Fixed a bug (#4105) - :doc:`Form Validation Library <libraries/form_validation>` didn't allow pipe characters inside "bracket parameters" when using a string ruleset.
 -  Fixed a bug (#4109) - :doc:`Routing <general/routing>` to *default_controller* didn't work when *enable_query_strings* is set to TRUE.
 -  Fixed a bug (#4044) - :doc:`Cache Library <libraries/caching>` 'redis' driver didn't catch ``RedisException`` that could be thrown during authentication.
+-  Fixed a bug (#4120) - :doc:`Database <database/index>` method ``error()`` didn't return error info when called after ``query()`` with the 'mssql' driver.
 
 Version 3.0.1
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