Fix #4415 and add unit tests for https://bugs.php.net/bug.php?id=51192
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index a3fed6a..a8cb3f5 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -17,6 +17,7 @@
- Fixed a bug (#4401) - :doc:`Query Builder <database/query_builder>` breaks ``WHERE`` and ``HAVING`` conditions that use ``IN()`` with strings containing a closing parenthesis.
- Fixed a regression in :doc:`Form Helper <helpers/form_helper>` functions :php:func:`set_checkbox()`, :php:func:`set_radio()` where "checked" inputs aren't recognized after a form submit.
- Fixed a bug (#4407) - :doc:`Text Helper <helpers/text_helper>` function :php:func:`word_censor()` doesn't work under PHP 7 if there's no custom replacement provided.
+- 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).
Version 3.0.4
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