Updated CHANGELOG

Author: SilverFire

framework/CHANGELOG.md

@@ -24,6 +24,7 @@ Yii Framework 2 Change Log
 - Enh #8602: `yii\validators\DateValidator` skip validation for `timestampAttribute`, if it is already in correct format (klimov-paul)
 - Enh #8639: Improve ActiveRecord to not create new instances of classes when objects are available (cebe)
 - Enh #9893: `yii.js` handleAction enhanced to support for data-form attribute, so links can trigger specific forms (SamMousa)
+- Enh #8145, #8139, #10234 #11153: `yii\validators\Validator::$attributes` property now supports `!attribute` notation to validate attribute, but do not mark it as safe (mdmunir)
 - Enh #10451: Check of existence of `$_SERVER` in `\yii\web\Request` before using it (quantum13)
 - Enh #10487: `yii\helpers\BaseArrayHelper::index()` got a third parameter `$groupBy` to group the input array by the key in one or more dimensions (quantum13, silverfire, samdark)
 - Enh #10610: Added `BaseUrl::$urlManager` to be able to set URL manager used for creating URLs (samdark)