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diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 9f10a31512..c1b849ce68 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,27 @@
+*   Handle aliased attributes in ActiveRecord::Relation.
+
+    When using symbol keys, ActiveRecord will now translate aliased attribute names to the actual column name used in the database:
+
+    With the model
+
+        class Topic
+          alias_attribute :heading, :title
+        end
+
+    The call
+
+        Topic.where(heading: 'The First Topic')
+
+    should yield the same result as
+
+        Topic.where(title: 'The First Topic')
+
+    This also applies to ActiveRecord::Relation::Calculations calls such as `Model.sum(:aliased)` and `Model.pluck(:aliased)`.
+
+    This will not work with SQL fragment strings like `Model.sum('DISTINCT aliased')`.
+
+    *Godfrey Chan*
+
 *   Mute `psql` output when running rake db:schema:load.
 
     *Godfrey Chan*