From 0d79a2b519ae9f1d0e29f89bdbae516d5b818452 Mon Sep 17 00:00:00 2001
From: Maurits van Rees <maurits@vanrees.org>
Date: Mon, 7 Dec 2015 08:12:25 +0100
Subject: [PATCH] Noted compatibility and point to plone4.csrffixes in the
 readme.

Fixes issue #35.
---
 README.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/README.rst b/README.rst
index 2208c9b..9d727fc 100644
--- a/README.rst
+++ b/README.rst
@@ -236,3 +236,16 @@ If you are using a proxy cache in front of your site, be aware that
 you will need to clear the entry for ``++resource++protect.js`` every
 time you update this package or you will find issues with modals while
 editing content.
+
+
+Compatibility
+=============
+
+``plone.protect`` version 3 was made for Plone 5.  You can use it on
+Plone 4 for better protection, but you will need the
+``plone4.csrffixes`` hotfix package as well.  Otherwise you get
+needless warnings or errors.  See the `hotfix announcement`_ and the
+`hotfix page`_.
+
+.. _`hotfix announcement`: https://plone.org/products/plone/security/advisories/security-vulnerability-20151006-csrf
+.. _`hotfix page`: https://plone.org/products/plone-hotfix/releases/20151006