The April 2026 Power BI update focuses on enhancements in various areas, including Copilot and AI, reporting, and visuals. Copilot on mobile now supports in-report conversations, open-ended questions, and AI-generated visualizations. Reporting features introduce a base theme switcher, canvas size presets, and updated table/matrix styles. Fixed-size options are available for card, button slicer, and list slicer visuals, controlling item dimensions precisely. The card visual now offers category interactivity and formatting updates. The Azure Maps visual synchronizes map style selections between the visual and the format pane. Preview visuals are clearly identified in the Visualizations pane. The Narrative visual now defaults to Copilot mode for licensed users and has an increased character limit.