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diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 8667f40406..8e262b5fd7 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,25 +1,3 @@
-*   Fix bug when using Mysql2 adapter where in some cases, boolean values were
-    being output in sql as `t` or `f` instead of `1` or `0`. Example:
-
-        class Model < ActiveRecord::Base
-          validates_uniqueness_of :boolean_col
-        end
-        Model.first.valid?
-
-    Previously generated sql:
-
-        SELECT 1 AS one FROM `models` WHERE
-          `models`.`boolean_col` = BINARY 'f' LIMIT 1
-
-    With fix:
-
-        SELECT 1 AS one FROM `models` WHERE
-          `models`.`boolean_col` = BINARY 0 LIMIT 1
-
-    Fixes: #11119
-
-    *Adam Williams*
-
 *   `change_column` for PostgreSQL adapter respects the `:array` option.
 
     *Yves Senn*