Couchbase Server 4.0, a significant release for the company, is now available for download following multiple previews, thanks to the contributions from the developer community and beta customers. This release introduces several innovations, including the new N1QL query language which combines SQL simplicity with JSON flexibility, enhanced BI integration via ODBC/JDBC drivers, and spatial queries for location-aware applications. Performance improvements include new indexing for responsive queries, multi-dimensional scaling, and the advanced ForestDB storage engine. The release also focuses on simplified security compliance, improved high availability and disaster recovery through enhanced data distribution and protection, and a connected big data experience. Additionally, it offers improved provisioning with high-performance container deployment, expanded cloud support, and new enterprise platforms. Enhanced developer documentation and resources are available through a new developer portal, and further learning opportunities are offered via events and online training sessions.