The new PubNub Dart SDK aims to enhance the developer experience by enabling the creation of multi-platform applications using the Dart programming language, with optional integration into the Flutter Framework. This SDK allows developers to efficiently build natively-compiled applications for mobile, web, and desktop from a single codebase, addressing the growing need for rapid app development across multiple platforms. While Flutter is not required to use the Dart SDK, its combination with Dart provides significant advantages, such as client-optimized applications and simplified code management. The introduction of the Dart SDK responds to developer demands for Flutter support and facilitates the development of scalable, real-time applications, ensuring consistent features across various platforms.