- Chg #2057: AutoTimestamp attributes defaults changed from `create_time` and `update_time` to `created_at` and `updated_at` (creocoder)
- Chg #2063: Removed `yii\web\Request::acceptTypes` and renamed `yii\web\Request::acceptedContentTypes` to `acceptableContentTypes` (qiangxue)
- Chg #2157: The '*' category pattern will match all categories that do not match any other patterns listed in `I18N::translations` (qiangxue, Ragazzo)
- Chg #2161: Added ability to use `return` in `Widget::run` (samdark)
- Chg: Renamed `yii\jui\Widget::clientEventsMap` to `clientEventMap` (qiangxue)
- Chg: Renamed `ActiveRecord::getPopulatedRelations()` to `getRelatedRecords()` (qiangxue)
- Chg: Renamed `attributeName` and `className` to `targetAttribute` and `targetClass` for `UniqueValidator` and `ExistValidator` (qiangxue)