Update CHANGELOG.md

framework/CHANGELOG.md

@@ -189,6 +189,7 @@ Yii Framework 2 Change Log
 - Enh: Added support to allow an event handler to be inserted at the beginning of the existing event handler list (qiangxue)
 - Enh: Improved action filter and action execution flow by supporting installing action filters at controller, module and application levels (qiangxue)
 - Enh: Added `isAssociative()` and `isIndexed()` to `yii\helpers\ArrayHelper` (qiangxue)
+- Enh: Added `addSelect` to `yii\db\Query` (Alex-Code)
 - Chg #47: Changed Markdown library to cebe/markdown and adjusted Markdown helper API (cebe)
 - Chg #735: Added back `ActiveField::hiddenInput()` (qiangxue)
 - Chg #1186: Changed `Sort` to use comma to separate multiple sort fields and use negative sign to indicate descending sort (qiangxue)