From 5ecf4f91caba105128405b784ceac93c1af69362 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@devilix.net>
Date: Mon, 22 Aug 2016 14:16:33 +0300
Subject: [ci skip] Add changelog entry for PR #4780

---
 user_guide_src/source/changelog.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 97b4d254d..aa9af21b6 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -22,6 +22,7 @@ Bug fixes for 3.1.1
 -  Fixed a bug (#4759) - :doc:`Form Validation <libraries/form_validation>`, :doc:`Trackback <libraries/trackback>` and `XML-RPC <libraries/xmlrpc>` libraries treated URI schemes in a case-sensitive manner.
 -  Fixed a bug (#4762) - :doc:`Cache Library <libraries/caching>` 'file' driver method ``get_metadata()`` checked TTL time against ``mtime`` instead of the cache item's creation time.
 -  Fixed a bug where :doc:`File Uploading Library <libraries/file_uploading>` generated error messages on PHP 7.1.
+-  Fixed a bug (#4780) - :doc:`compatibility function <general/compatibility_functions>` ``hex2bin()`` didn't reject inputs of type "resource".
 
 Version 3.1.0
 =============
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