The new Couchbase Web Console features a refreshed design influenced by Google's Material Design, with a vertical and left-side navigation menu organized by "cluster" and "data". The UI has been streamlined, with a focus on usability, performance, and efficiency. Key changes include the removal of the clear button, improved history functionality, and enhanced data bucket insights. The Query Workbench now features a new Plan and Plan Text options in results, as well as a Query Monitor page showing system catalogs added in Couchbase Server 4.5. Buckets are still available but with some minor improvements, and charts and statistics have been reworked to adhere to the Material Design philosophy, taking up full page space for better visibility. The UI also includes new features such as role-based security and a secondary navigation bar across the top of the page. Users can switch between the old and new UIs, with the option to view the classic UI by clicking on a link at the top right of the page.