Vonage has introduced Server SDKs that support its Messages API, allowing developers to integrate messaging functionality into their applications across multiple channels such as SMS, MMS, WhatsApp, Facebook Messenger, and Viber. The new SDKs simplify the process of using the Messages API by handling low-level details for developers, enabling them to focus on building their applications. The Vonage Messages API offers various features including sending SMS messages, sending multimedia content via MMS, and supporting multiple messaging channels such as WhatsApp, Facebook Messenger, and Viber. Developers can now easily incorporate these messaging functionalities into their applications using the provided SDKs and code examples in the Vonage documentation.