[ci skip] Add changelog entry for #4977
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 64ebd61..ab94d67 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -15,6 +15,7 @@
-------------------
- Fixed a regression (#4975) - :doc:`Loader Library <libraries/loader>` couldn't handle objects passed as view variables.
+- Fixed a bug (#4977) - :doc:`Loader Library <libraries/loader>` method ``helper()`` could accept any character as a filename extension separator.
Version 3.1.3
=============