diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md
index 4d4781dc2ae08e3ff6336a2e1f3eb01d6ea66ca7..ea220ff184b8784a16d50066e22d87aea7f8de24 100644
--- a/activesupport/CHANGELOG.md
+++ b/activesupport/CHANGELOG.md
@@ -1,3 +1,9 @@
+## unreleased ##
+
+*  Remove multiple parameters support of `Object#in?`.
+
+   *Brian Morearty*
+
 ## Rails 4.0.0.rc1 (April 29, 2013) ##
 
 *   Fix skipping of filters defined by objects in `ActiveSupport::Callbacks::Callback`.