- Chg: Added `prefix` column to `yii\log\DbTarget` to have the same amount of information logged as in files and emails (cebe)
- Chg: Use `limit(null)` instead of `limit(-1)` in migration controller to be compatible to more backends (cebe)
- New #3911: Added `yii\behaviors\SluggableBehavior` that fills the specified model attribute with the transliterated and adjusted version to use in URLs (creocoder)
-Enh: Added CORS filter to allow Cross Origin Resource Sharing (pgaultier)
-New #4193: Added `yii\filters\Cors` CORS filter to allow Cross Origin Resource Sharing (pgaultier)
