PubNub is set to automatically migrate all users from Functions v1 to Functions v2 by February 28, 2025, ensuring a seamless transition without downtime and providing users with a new interface and enhanced capabilities. Functions v2 offers significant improvements, including a new Packages/Revisions/Deployments structure, account-level Packages, versioning for functions, and a revamped user interface. It introduces a robust API for managing functions, key-value stores, and secret management, supporting integration into CI/CD pipelines. Additionally, the update enables seamless rolling updates, a revised permission model, and the ability to deploy a single Package across multiple keysets, thus simplifying management and reducing overhead. Key advantages of Functions v2 include robust lifecycle management, zero-downtime updates, and a public API that allows for more robust implementations and automation. Post-migration, developers are encouraged to adapt to the new API, reassign permissions, optimize function setups using the KV Store, and leverage the API for streamlined development workflows. By adopting Functions v2, developers can enhance operational efficiency, scalability, and performance by offloading more business logic to PubNub's real-time infrastructure.