Updates released between September 16, 2025, and September 30, 2025
September closed with a powerful set of Microsoft 365 Copilot updates that expand mobile capabilities, enhance file understanding, and give administrators new tools to optimize agent deployment. These improvements continue Microsoft's push to make AI assistance more contextual, accessible, and administratively manageable across enterprise environments.
Mobile Gets Major Upgrades
Microsoft has brought agents support to pay-as-you-go and Copilot Chat users on mobile apps for both Android and iOS, democratizing access to custom AI assistants beyond traditional licensed users. This expansion recognizes that modern work happens everywhere, and teams need consistent AI capabilities whether they're at their desks or on the move.
The mobile experience also gained "viral link sharing" for agents—users can now share agent links directly through the Microsoft 365 mobile app, making it effortless to propagate useful AI tools across teams without requiring complex deployment processes.
Business impact: This mobile-first enhancement addresses a critical adoption barrier. In organizations where employees split time between office, remote, and field work, having powerful Copilot features locked to desktop limited real-world utility. These updates ensure your investment in Copilot agents reaches your entire workforce, regardless of location or device.
File Understanding Reaches New Heights
One of the most significant improvements this cycle is Copilot Chat's ability to understand attached files across multiple formats—Word, Excel, PowerPoint, PDF, Text, JSON, and XML. Users can now gather insights not just from email content but from the attached documents themselves, creating truly comprehensive context for AI interactions.
Additionally, Copilot now analyzes embedded images within uploaded PDFs, DOCX, and PPTX files. You can ask questions like "analyze the image on page 4" and receive insights based on visual data within documents—a game-changer for teams working with technical documentation, architectural plans, or data visualizations.
Why this matters: Email attachments often contain the most critical information in business communications, yet they've historically been black boxes to AI assistants. By breaking down these barriers, Microsoft enables Copilot to participate meaningfully in document-heavy workflows—reviewing contracts, analyzing financial reports, or extracting insights from research papers—all within the natural flow of conversation.
Administrative Control Gets Smarter
Administrators gain two important new capabilities this cycle. First, they can now pin agents for tenant-wide visibility, ensuring critical AI tools reach all users or specific groups automatically. This addresses the discoverability challenge many organizations face when deploying custom agents.
Second, the Microsoft 365 admin center now includes usage reports specifically for Copilot search, giving administrators visibility into adoption patterns, search query volumes, and user activity trends. This data is essential for understanding how teams interact with Copilot and where to focus training or optimization efforts.
ISV-built copilot connectors are now discoverable through the connector catalog in the admin center, streamlining the process of integrating third-party data sources with Copilot experiences.
Strategic value: Successful AI adoption requires understanding how people actually use the tools. These admin features provide the visibility and control necessary to turn Copilot from an experimental technology into a core productivity platform. Pinning essential agents ensures consistency across departments, while usage analytics inform strategic decisions about licensing and deployment priorities.
Edge Integration and Multi-Image Creativity
Microsoft Edge users can now access Copilot Chat summarization directly from the context menu, making it trivial to get quick overviews of web pages without switching applications. This tight integration between browser and AI assistant exemplifies Microsoft's ecosystem strategy.
Creative work gets a boost with the ability to upload multiple images into Copilot Chat prompts simultaneously, enabling richer creative reasoning and content generation with varied visual inspiration.
Practical application: Marketing teams creating campaign materials can now reference multiple brand images, competitor examples, and mood boards in a single Copilot prompt, dramatically accelerating the creative iteration process. Product teams can upload UI screenshots from different apps to explore design patterns and generate new concepts.
Platform-Specific Improvements
- Outlook users can now highlight and rewrite email drafts with Copilot in classic Outlook for Windows
- PowerPoint preserves original files when creating new presentations from existing decks (avoiding accidental overwrites)
- SharePoint gains AI-driven site content and policy comparison tools for governance
- ServiceNow connectors now support custom URL configuration for articles, tickets, and catalog items
Looking Forward
This update cycle demonstrates Microsoft's focus on three key themes: mobile parity with desktop experiences, breaking down file format barriers, and giving administrators the tools they need to manage AI at scale. The combination of enhanced file understanding and mobile accessibility makes Copilot significantly more useful for real-world business scenarios.
For organizations evaluating Copilot's ROI, these improvements address common objections around limited mobile support and incomplete document analysis—two factors that previously restricted Copilot to desktop-centric, text-heavy workflows.
Microsoft continues to iterate rapidly on Copilot, with each release expanding the platform's capabilities and enterprise readiness.