Couchbase has announced the general availability of the Couchbase Ruby SDK 3.0, designed to connect Ruby applications to Couchbase clusters with a high-performance API that extends native Ruby capabilities. This SDK supports future server features like Scopes and Collections and is compatible with Ruby versions 2.5.0 and above, as well as Couchbase server versions 6.0.0 and above. Installation is straightforward, involving a simple gem installation process, and it offers precompiled extensions for systems without a C/C++ compiler. Key features include Key Value operations for document management, Sub-Document operations for efficient data access, N1QL language-based querying for document retrieval, and an analytics service for complex ad-hoc queries on JSON data. The SDK aims to simplify application development with enhanced features and invites developers to engage with the community for feedback and support.