The recent release of Couchbase Server version 2.1.3 follows up on versions 2.1.0 and 2.1.1, introducing Multidimensional Scaling (MDS) for Couchbase Server 4.0 Beta alongside a significant number of bug fixes. MDS is a new feature that enhances the scalability of Couchbase clusters by allowing specific nodes to be designated as query, data, or index nodes, optimizing hardware usage based on the workload requirements. This release ensures that client applications are aware of the designated roles of nodes, ensuring efficient operation in a 4.0 cluster, while maintaining backward compatibility with earlier versions. The update also addresses various technical tasks, improvements, and bug fixes, such as resolving zero BodyLength issues and connection leaks, and enhancing service awareness in server selection. The Couchbase .NET SDK, supporting these updates, is available for download directly, via NuGet, or through GitHub.