Yii Data Response version 2.2.0 was released. In this version:

• Add DataStream
• Add FormatterInterface and implementations: HtmlFormatter, JsonFormatter, PlainTextFormatter, XmlFormatter
• Add DataResponseFactoryInterface and implementations: DataResponseFactory, FormattedResponseFactory, HtmlResponseFactory, JsonResponseFactory, PlainTextResponseFactory, XmlResponseFactory
• Add middlewares: XmlDataResponseMiddleware, HtmlDataResponseMiddleware, JsonDataResponseMiddleware, PlainTextDataResponseMiddleware and DataResponseMiddleware
• Add ContentNegotiatorResponseFactory and ContentNegotiatorDataResponseMiddleware
• Deprecate DataResponse, DataResponseFactory, DataResponseFactoryInterface, DataResponseFormatterInterface, ResponseContentTrait, HtmlDataResponseFormatter, JsonDataResponseFormatter, PlainTextDataResponseFormatter, XmlDataResponseFormatter, ContentNegotiator, FormatDataResponse, FormatDataResponseAsHtml, FormatDataResponseAsJson, FormatDataResponseAsPlainText, FormatDataResponseAsXml
• Explicitly import classes, functions, and constants in "use" section
• Remove unnecessary files from Composer package