Ray version 1.7 has been released with several key updates, including the introduction of alpha versions for Ray SGD v2 and Ray Workflows, which aim to improve usability, composability, and performance for large-scale data science, ML, and long-running business workflows. The new SGD v2 offers a simpler API, better integration with other libraries, and more features, while the Workflows library provides flexibility, high-performance execution, durability, and dependency management. Additionally, a C++ API has been introduced, enabling users to build C++ distributed systems easily and reducing inter-language overhead. These updates aim to provide a more streamlined experience for users and support various use cases with Ray's core capabilities.