The new PubNub Chat SDK simplifies the process for developers to create chat applications or integrate chat features into existing apps, addressing the common demand for high-level chat functionalities such as group messaging, typing indicators, and user organization. Built on the PubNub platform, it ensures compliance, scalability, and security while supporting TypeScript across various frameworks like Angular, React, and Vue for both web and mobile platforms. The SDK offers a range of features including conversation and user management, basic and advanced messaging, and mobile push notifications, allowing developers to maintain flexibility in creating unique chat experiences. It also includes powerful capabilities like user presence, message history, moderation, and typing indicators, making chat development more accessible and user-friendly compared to traditional SDKs. The Chat SDK allows for easy integration with Android and iOS push messaging, and its API simplifies tasks such as tracking unread messages, enhancing the developer experience without compromising technical robustness.