The Twilio helper library for ASP.NET has been updated to version 6.0.0, introducing breaking changes and new features. The library now supports dependency injection and allows users to add the TwilioRestClient to ASP.NET Core's services using the .AddTwilioClient method. This feature enables more reliable and performant HTTP client usage. Additionally, the library provides improved request validation capabilities, allowing users to configure request validation through external configuration providers such as JSON files or environment variables. The new version also includes enhanced HTTP client logging and improved handling of webhook requests coming from Twilio.