The latest release of Couchbase, version 7.0, has enhanced its Data Analytics capabilities with two new powerful features: CUBE functionality and ROLLUP aggregation. The CUBE functionality allows users to generate subtotals for all combinations of grouping columns specified in the GROUP BY clause, providing more detailed insights into their data. This is demonstrated through a walkthrough example using sample ecommerce data, where users can calculate total sales by region and year, as well as other aggregated metrics. These new features are designed to help users answer complex data analysis questions and make informed business decisions.