Power BI October 2026: Key Updates for Your Organisation
Selected Power BI October 2026 updates: AI-assisted authoring for custom visuals, a native Gantt visual, dropdown list slicers, hierarchy auto-expansion with field parameters, and more timely capacity consumption reporting.
Key takeaways
- Report development is becoming more AI-assisted: the Report Authoring skill now extends to custom visuals, but generated changes still need human review.
- New visuals and slicer options help readers: a native Gantt visual (preview) and dropdown list slicers (preview) save effort and canvas space.
- Check availability before you commit: two features in the October summary have been delayed, and preview limits still apply.
Power BI’s October updates focus on AI-assisted report development, project visualisation, filtering and capacity management.
This article highlights selected updates and availability considerations, checked on 20 October 2026.
1. AI-assisted authoring for custom visuals
Status: Custom visual support is reported as generally available in the October summary; Microsoft Learn currently marks the Report Authoring skill itself as preview. Confirm the status for your scenario.
The Power BI Report Authoring skill now supports custom visuals, extending natural-language report development beyond core visuals. This includes working with custom visuals already in a report.
The skill works with Power BI Project (PBIP) files using the Power BI Report (PBIR) format. It supports report creation, formatting and validation through an AI-agent workflow rather than replacing the underlying semantic model development tools.
Why it matters: Teams can reduce repetitive report configuration. Generated changes still require analytical, visual and accessibility review, alongside organisational approval for custom visuals.
2. A native Gantt visual
Status: Preview
Power BI introduces a core Gantt visual for displaying tasks and progress over time. It supports duration bars, milestones, progress indicators, task grouping and additional columns such as owner or status. Readers can zoom into a specific period.
Why it matters: Project teams gain a native option for presenting delivery schedules alongside expenditure, resource and performance reporting.
The preview currently supports up to 1,000 rows.
3. Improved dropdown filtering
Status: Preview
The list slicer gains a dropdown mode that saves canvas space while making active filters easier to review. Removable selection labels show chosen values without reopening the dropdown, while “Show selected first” brings active selections to the top. Authors can also configure dropdown dimensions and preserve item formatting.
Why it matters: Users can manage long customer, product or organisational lists more easily, while authors retain more space for analysis.
4. More flexible hierarchy exploration
Status: Generally available
The October update includes hierarchy-axis auto-expansion with field parameter support for bar, column and line charts. Field parameters let readers change the dimensions or measures shown in a visual.
Why it matters: A sales report can offer different combinations of country, segment and product within a shared visual, reducing the need for separate charts.
Authors should still test field selection order and hierarchy behaviour against the intended analytical experience.
5. More timely capacity consumption reporting
Status: Platform improvement
Semantic models now report consumption during long-running background operations, giving surge protection more timely information about capacity usage.
Why it matters: Configured protection thresholds can respond to accumulating consumption sooner. This improves overload management; it does not add capacity.
Capacity-level surge protection rejects new background operations when thresholds are reached. It does not stop jobs already running or guarantee that interactive requests will avoid throttling.
Availability clarifications
Two features announced in the October summary were subsequently reported as delayed:
- Chart plot-area background colour.
- Personal bookmarks preserving column widths.
Confirm availability in your installed version and service environment before including either feature in delivery commitments.
Information checked on 20 October 2026. Feature availability and preview restrictions can change; confirm current support before adoption.