1 files changed, 20 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index c6ce77a9cc..cd6042c329 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,5 +1,25 @@
 ## Rails 4.0.0 (unreleased) ##
 
+*   `belongs_to :touch` behavior now touches old association when
+    transitioning to new association.
+
+        class Passenger < ActiveRecord::Base
+          belongs_to :car, touch: true
+        end
+
+        car_1 = Car.create
+        car_2 = Car.create
+
+        passenger = Passenger.create car: car_1
+
+        passenger.car = car_2
+        passenger.save
+
+    Previously only car_2 would be touched. Now both car_1 and car_2
+    will be touched.
+
+    *Adam Gamble*
+
 *   Extract and deprecate Firebird / Sqlserver / Oracle database tasks, because
     These tasks should be supported by 3rd-party adapter.