[ci skip] Try to mitigate BREACH attacks against CSRF tokens
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 7284d10..d889d4b 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -11,6 +11,7 @@
- Fixed an XSS vulnerability in :doc:`Security Library <libraries/security>` method ``xss_clean()``.
- Added protection against timing side-channel attacks in :doc:`Security Library <libraries/security>` method ``csrf_verify()``.
+ - Added protection against BREACH attacks targeting the CSRF token field generated by :doc:`Form Helper <helpers/form_helper>` function :php:func:`form_open()`.
- General Changes