Fix #4431
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 7e72c23..e993a86 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -25,6 +25,7 @@
- Fixed a bug (#4415) - :doc:`Form Validation Library <libraries/form_validation>` rule **valid_url** didn't accept URLs with IPv6 addresses enclosed in square brackets under PHP 5 (upstream bug).
- Fixed a bug (#4427) - :doc:`CAPTCHA Helper <helpers/capcha_helper>` triggers an error if the provided character pool is too small.
- Fixed a bug (#4430) - :doc:`File Uploading Library <libraries/file_uploading>` option **file_ext_tolower** didn't work.
+- Fixed a bug (#4431) - :doc:`Query Builder <database/query_builder>` method ``join()`` discarded opening parentheses.
Version 3.0.4
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