From 3c124e8ce5f0f3e510e15379ed8183b1900e89c5 Mon Sep 17 00:00:00 2001
From: Steve Klabnik <steve@steveklabnik.com>
Date: Fri, 22 Aug 2014 14:52:39 -0400
Subject: [PATCH] Clarify README wrt POROs

Closes #556.
---
 README.md | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index e6d5b694..e27a50ae 100644
--- a/README.md
+++ b/README.md
@@ -68,9 +68,11 @@ $ rails g serializer post
 
 ### Support for POROs
 
-Currently `ActiveModel::Serializers` expects objects to implement
-read\_attribute\_for\_serialization. That's all you need to do to have
-your POROs supported. 
+The PORO should include ActiveModel::SerializerSupport. That's all you need to
+do to have your POROs supported.
+
+For Rails versions before Rails 4  ActiveModel::Serializers expects objects to
+implement `read_attribute_for_serialization`.
 
 # render :json