What's New in Microsoft 365 Copilot – March 2026 | 25 Updates You Shouldn't Miss

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What's New · · by Susanth Sutheesh · 4 min read

March 2026 brings 25 new updates to Microsoft 365 Copilot, designed to make work smarter, faster, and more efficient.

A special shout-out to Shelly Blackley, whose hard work and persistence continue to power this monthly update series.

1. Edit with Copilot (Agent Mode) in Excel

Edit with Copilot (previously called ‘Agent Mode’) is now available for Copilot Chat users (without a paid licence) and on the desktop app (Windows and Mac, not just web).

If you have a paid licence, you may also select which model to use, including both OpenAI and Anthropic models (if your organisation allows it).

📖 Agent Mode in Excel

2. Chat History Update

Click on ‘Chats’ in the left-hand menu to open your Chat History landing page. Updated filtering makes it simpler to find conversations and easier to clear filters.

3. Copilot with OneDrive Files in macOS Finder

Right-click on a file in Finder to ask questions about it using Microsoft 365 Copilot.

4. Scheduling with Copilot

Schedule meetings directly from chat. Ask Copilot to find available times, book rooms, draft agendas, and send invites — all within the chat experience.

5. Share with Summary for OneDrive Files

Click the Copilot icon in the share dialog to have Copilot send a summary of the file being shared. Available in File Explorer and OneDrive Activity Center.

6. Floating Copilot Button in OneDrive

A quick-access button appears prominently in your OneDrive web interface. It suggests helpful actions based on your file selection.

7. Loop Notebooks in Context IQ

Ground your prompts in Copilot Chat by scoping to Loop Notebooks content in the Files tab.

8. Review PDFs with Copilot

Copilot explains selected text in plain language and lets you customise the prompt for tailored results — no need to switch apps.

📖 Review PDFs with Copilot

9. Agents in Classic Outlook

You can now access agents in Copilot Chat from Classic Outlook on Windows (previously New Outlook only). Type @ or select the tools icon.

10. Audio Overview of Meetings

Copilot can generate an audio overview of your transcribed meetings — choose one or two speakers, adjust tone, and tailor the length. Currently English only.

📖 Audio meeting recaps

11. Ask Copilot from Edge Address Bar

Type a search query in the Edge address bar and send it to Copilot for a synthesised answer pulling from the web (and your work content for paid licence users).

12. Summarise & Explain Actions in PDF Reader

Microsoft Edge expands its PDF reader with two new actions — ‘Summarise’ and ‘Explain’ — to generate overviews or simplify complex content.

13. Copilot Can Edit Presentations in PowerPoint

Copilot now lets you create, edit, and refine presentations through natural conversation — directly in the presentation, not just the side panel. Connects to your brand kit for templates, images, and compliance.

14. Watermarks for AI-Generated Content

You can now add watermarks for AI-generated video, audio, and image content via the Microsoft privacy dashboard.

15. Enhanced Memory with Work Data

Copilot now uses M365 Graph data to provide more relevant, contextual responses. Manage what Copilot remembers in Settings > Personalisation.

16. Word Agent

Find the Word Agent under ‘All agents’ in the M365 Copilot app. It helps create Word files directly — handling research, structure, and formatting. Designed for long-form, information-dense work like strategic plans, policy documents, and technical papers.

Available to users with or without a paid licence (if admin allows).

17. SharePoint List Agent

Create lists effortlessly through prompts with intelligent schema generation. Transforms structured information and Copilot responses to Microsoft Lists.

18. Voice Chats Reference Memory

During voice chat, Copilot can respond using existing memories stored in personalisation settings. You can’t modify memories via voice yet.

📖 Copilot Voice

19. Voice Support in Word & PowerPoint

Talk and interact with Copilot verbally to brainstorm ideas, create content, and analyse information. Voice understands documents, work, and web context.

20. Metadata Support for SharePoint Queries

Copilot now leverages column metadata from selected SharePoint libraries, delivering more accurate results.

21. Overview Page in Copilot Notebooks

Copilot-powered summaries and insights as a landing page within your Notebook. Paid licence required.

22. Prepare for Meetings in Outlook Mobile

Outlook mobile users can prepare for meetings using Copilot Chat in a single tap. Paid licence required.

23. Copilot Chat for Teams Chats, Channels, Calling & Meetings

Copilot Chat will be available inside Teams chats, channels, calling, and meetings. You can ask questions about the meeting AND general Copilot questions like “Summarise the latest email about this project.”

24. Copilot Chat Across Multiple Edge Tabs

Copilot Chat in Edge can answer contextual questions about all your open tabs — not just the active one.

📖 Copilot in Edge

25. Ground Copilot in YouTube Videos

Get relevant answers and insights about your open YouTube videos in Copilot Chat in Edge for Business.

📚 Official Microsoft Resources

🔗 Related Content on This Site

💡 Want More?

Originally published on LinkedIn. This article accompanies a video tutorial on the A Guide to Cloud & AI YouTube channel.

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