The Aggregation Pipeline Builder in MongoDB Compass` is a new feature that simplifies the process of building aggregation pipelines, allowing users to create complex queries with ease. The builder provides an intuitive drag-and-drop interface and code skeletons, along with auto-completion for operators and document field names. It also includes features such as previewing results, rearranging stages, and toggling them on and off, making it easy to troubleshoot and refine pipelines. With its rich library of over 25 stages and 100 operators, the aggregation framework is an incredibly versatile tool that enables users to perform extensive analytics and statistical analysis in real-time, generating pre-aggregated reports for dashboarding. The new feature is available with the latest release of Compass for beta testing under the Aggregations tab.