Couchbase Mobile 3 introduces significant updates to Couchbase Lite and Sync Gateway, enhancing mobile and edge computing solutions. Key highlights include the introduction of a C API for Couchbase Lite, enabling its use on a wide range of embedded platforms with support for enterprise-grade features like database encryption. The release also includes improvements in configuration and administration with a modular, cluster-aware Sync Gateway setup and secure RESTful API endpoints. Developers can now use SQL++/N1QL for Mobile to streamline query development across Couchbase Server and Lite, and Kotlin support is enhanced for Android app development. Additionally, security is bolstered with default TLS encryption in Sync Gateway, client-side field-level encryption, and auto-purge features for data governance. These updates are designed to simplify complex workflows and enhance the security and manageability of mobile data solutions.