Kibana 6.4.0 introduces several enhancements designed to improve user experience and functionality, including a one-click sample data feature that allows users to quickly explore Kibana's capabilities without manual data loading. The update also includes a revamped data inspection workflow, new beta tutorials for integrating with services using Metricbeat modules, and a refreshed design for managing saved objects, which now offers an improved workflow for importing and exporting index patterns and a new relationship view. Additionally, users can preview scripted fields for testing prior to implementation and create custom rules to fine-tune machine learning results. Enhancements to the APM UI include integration with machine learning for identifying response time anomalies and a new query bar for precise data searching and filtering. The release also features an Elastic Maps Service landing page for geospatial visualization and the ability to apply Vega filters to dashboards, alongside experimental API documentation for role management, Logstash configuration management, and saved objects.