From 3e7f5a1bfb42c523d12db6ef89a3c6891502a602 Mon Sep 17 00:00:00 2001
From: Jared Beck <jared@jaredbeck.com>
Date: Fri, 8 Apr 2016 18:54:37 -0400
Subject: [PATCH] Docs: Choosing when based on changed attr.

[ci skip]
---
 README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/README.md b/README.md
index 81728549..76773f31 100644
--- a/README.md
+++ b/README.md
@@ -316,6 +316,11 @@ class Translation < ActiveRecord::Base
 end
 ```
 
+### Choosing Based on Changed Attributes
+
+Starting with PaperTrail 4.0, versions are saved during an after-callback. If
+you decide whether to save a new version based on changed attributes, please
+use attribute_name_was instead of attribute_name.
 
 ## Choosing Attributes To Monitor