PubNub Functions are serverless and scalable code modules that enable real-time data processing on the PubNub platform, allowing users to transform, re-route, augment, filter, and aggregate data without needing a dedicated backend. These functions support custom integrations and built-in libraries, facilitating operations like real-time language translation and adding location context to messages using third-party services through REST APIs. This capability is particularly valuable for apps with social elements, multilingual customer support, and e-commerce, as it aids in connecting global communities and expanding customer bases. Additionally, PubNub Functions can enhance user experiences by incorporating location-based data, which can be used across various industries from social chat to IoT monitoring. Recent updates to PubNub Functions include a new Functions API for easier deployment and management, an enhanced in-browser editor, versioning for safer feature releases, and zero-downtime deployments to ensure seamless updates.