Couchbase Mobile 2.0 beta introduces significant updates to its capabilities, including an improved Couchbase Lite with features such as a simplified API with built-in thread safety, a new query interface, automatic conflict management, and full-text search. Additionally, it offers a WebSocket-based replication protocol to enhance its functionality as an advanced embedded NoSQL database. The release is accompanied by documentation and blog resources to guide users through its new features, like queries and replication. A travel-sample mobile application demonstrates data synchronization between web and mobile platforms. User engagement is encouraged via Couchbase forums and GitHub, with plans to consider support for additional platforms like regular Java, though no specific timeline has been set.