Microsoft 365 & Copilot Roadmap Preview: What’s Coming in September 2026 for IT Leaders and Digital Workplace Teams
Photo credit: Copilot
September continues the march of a Copilot heavy, compliance forward, and Teams experience deepening month. Across the board, Microsoft is tightening governance around AI, expanding Copilot’s reference capabilities, and delivering long‑requested admin controls in Outlook, Purview, and SharePoint. Below is a full September forecast, based on the publicly available roadmap from Microsoft (link below).
As always, do your due diligence and verify anything anyone posts prior to introducing change to your team. I am just here to echo what I see on the horizon, but I am one man and can make mistakes.
Source here: https://www.microsoft.com/
Executive Summary
- Copilot Notebooks expands with Power BI, CSV/TSV, JPG/PNG references — major boost for grounded AI outputs.
- Copilot Studio upgrades evaluation workflows, connector configuration, and agent sharing.
- Purview compliance deepens with Adaptive Scope lifecycle controls and retention for Copilot Memory.
- Outlook strengthens DLP across Mac and mobile, including calendar events.
- Planner enhancements (Conditional Coloring, Connected Plans) improve cross‑project visibility.
- SharePoint Site Skills introduces governance, versioning, and cross‑site reuse.
- Teams security reporting and profile card badges improve trust and identity clarity.
Copilot & AI Experiences
Copilot Notebooks: Power BI, CSV/TSV, JPG/PNG References
Copilot Notebooks becomes dramatically more powerful in September with three new reference types:
- Power BI reports (Feature 569928)
- CSV/TSV structured data (Feature 569210)
- JPG/PNG image grounding (Feature 569211)
These additions allow users to bring organizational data, structured tables, and visuals directly into notebooks. Copilot can now generate more accurate summaries, briefs, and presentations grounded in richer context.
“Copilot Notebooks now lets users add Power BI reports as references…” “Copilot Notebooks now supports CSV and TSV files as knowledge sources…”
Copilot Studio: Evaluations, Sharing, and Conversational Connector Setup
Three major improvements land in September:
- Agent evaluations overhaul (569607)
- Agent sharing among makers (569475)
- Conversational connector configuration (569930)
Admins and makers get clearer reasoning traces, dataset generation, run comparisons, and easier collaboration.
Copilot Memory Retention (Purview)
Purview introduces retention for Copilot Memory (569612), enabling versioning and historical visibility into memory items stored in Exchange.
Security, Compliance & Purview
Adaptive Scope Lifecycle Controls
Purview Adaptive Scopes gain explicit lifecycle-state evaluation controls (568785), improving precision in policy targeting.
“Adaptive Scopes will provide administrators with explicit control over lifecycle-state evaluation…”
DLP Enhancements Across Outlook
September brings a trio of DLP upgrades:
- DLP Wait-on-Send for Mac (569719)
- DLP Wait-on-Send for mobile (569718)
- DLP for Calendar Events on Mac (569717)
Mobile and Mac now receive consistent protection across email and calendar.
eDiscovery Support for SharePoint Embedded Containers
Purview eDiscovery adds support for SharePoint Embedded containers (569364), including Loop, Copilot Pages, and Notebooks.
Teams & Meetings
Report a Security Concern in Meetings
Teams introduces in-meeting security reporting (569207), allowing users to flag suspicious behavior during or after meetings.
Profile Card Badges
Awards and certifications now appear as badges in Teams profile cards (568078), aligning Teams with Outlook’s identity experience.
SharePoint, OneDrive & Files
Site Skills Governance in SharePoint
SharePoint adds Site Skills management (570155), including versioning, publishing, restoration, and cross-site duplication.
Anchored Comments for PDFs
OneDrive/SharePoint deliver anchored PDF comments (569020), bringing parity with Office document commenting.
Planner
September is a strong month for Planner modernization:
- Conditional Coloring (569476)
- Connected Plans (569929)
These features improve visibility across related workstreams and highlight priority tasks automatically.
Microsoft Viva
Viva Glint Enhancements
Two Glint updates arrive:
- Up to 500-option multiple-choice questions (569606)
- In-product feature announcements (569435)
Admins gain more flexibility in survey design and easier access to product news.
Admin Center & Organizational Data
Delegated Prompt Publishing
Admins can now delegate Copilot prompt publishing (569425) to users or groups — a major governance improvement for org-wide prompt libraries.
Data Quality Report for Profile Data
Organizational Data Services introduces a profile data quality report (568937), helping admins identify gaps that affect People Cards, Org Explorer, Copilot, and Cowork.
Default-On / Behavior-Changing Features to Watch
- Copilot Notebooks reference expansion (Power BI, CSV/TSV, JPG/PNG)
- Purview DLP enforcement across Mac and mobile
- Copilot Memory retention
- Planner Conditional Coloring
- SharePoint Site Skills governance
Admin Actions Checklist for September
- Review Copilot Notebook reference governance (Power BI, CSV/TSV, images).
- Validate Purview DLP policies across Mac and mobile.
- Update retention policies for Copilot Memory.
- Prepare training for Planner’s new visualization features.
- Review SharePoint Site Skills lifecycle governance.
- Communicate Teams security reporting to meeting organizers.
- Audit profile data quality using the new Organizational Data Services report.
Feature Table (September CY2026 Items)
| Feature | ID | Product | Release Phase | Admin Impact |
|---|---|---|---|---|
| Power BI references | 569928 | Copilot | GA/Preview | Stronger grounding for AI outputs |
| CSV/TSV references | 569210 | Copilot | GA/Preview | Structured data ingestion |
| JPG/PNG references | 569211 | Copilot | GA/Preview | Visual grounding |
| Agent evaluations improvements | 569607 | Copilot Studio | GA | Better quality control |
| Agent sharing | 569475 | Copilot Studio | GA/Preview | Collaboration & governance |
| Conversational connector setup | 569930 | Copilot Studio | GA | Easier connector configuration |
| Adaptive Scope lifecycle | 568785 | Purview | GA/Preview | Improved policy targeting |
| Copilot Memory retention | 569612 | Purview | GA | Compliance & versioning |
| DLP Wait-on-Send Mac | 569719 | Outlook | GA | Email protection |
| DLP Wait-on-Send mobile | 569718 | Outlook | GA | Mobile compliance |
| DLP Calendar Mac | 569717 | Outlook | GA | Calendar protection |
| eDiscovery SharePoint Embedded | 569364 | Purview | GA/Preview | Loop/Copilot Pages discovery |
| Conditional Coloring | 569476 | Planner | GA | Task visibility |
| Connected Plans | 569929 | Planner | GA | Cross-plan navigation |
| Site Skills | 570155 | SharePoint | GA | Skill lifecycle governance |
| Teams security reporting | 569207 | Teams | GA/TR | Threat reporting |
| Profile card badges | 568078 | Teams | GA/TR | Identity clarity |
| Viva Glint 500 options | 569606 | Viva | GA | Survey flexibility |
| Viva Glint announcements | 569435 | Viva | GA | Admin awareness |
| Delegated prompt publishing | 569425 | Copilot/Admin | GA | Prompt governance |
| Profile data quality report | 568937 | Admin Center | GA/Preview | Org data health |
Closing Thoughts
September continues the trend toward deep Copilot integration, tightened compliance, and more admin-governed AI experiences. If August was about expanding Copilot’s footprint, September is about making that footprint governable, auditable, and grounded in organizational data.
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