- Bug #16065: Remove using `date.timezone` at `yii\base\Application`, use `date_default_timezone_get()` instead (sashsvamir)
- Bug #12539:`yii\filters\ContentNegotiator` now generates 406 'Not Acceptable' instead of 415 'Unsupported Media Type' on content-type negotiation fail (PowerGamer1)
- Bug #14458: Fixed `yii\filters\VerbFilter` uses case-insensitive comparison for the HTTP method name (klimov-paul)