[ci skip] Add changelog entry for #4105
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 5fa9c78..f3eb718 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -26,6 +26,7 @@
- Fixed a bug (#4091) - :doc:`Cache Library <libraries/caching>` 'file' driver could be tricked into accepting empty cache item IDs.
- Fixed a bug (#4093) - :doc:`Query Builder <database/query_builder>` modified string values containing 'AND', 'OR' while compiling WHERE conditions.
- Fixed a bug (#4096) - :doc:`Query Builder <database/query_builder>` didn't apply *dbprefix* when compiling BETWEEN conditions.
+- Fixed a bug (#4105) - :doc:`Form Validation Library <libraries/form_validation>` didn't allow pipe characters inside "bracket parameters" when using a string ruleset.
Version 3.0.1
=============