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Microsoft 365 Copilot Update

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Update Summary

August 25, 2026 Microsoft 365 Copilot updates add new web and app capabilities, including Copilot Search chat, private Viva Engage grounding, Outlook email references, and a simplified Copilot UI. Roadmap IDs include 503564, 515144, 516042, 537281, 561488, 564910, 560706, 542185, 555888, 557256, 523205, and 559021.

Update Details

Security

  • Copilot only exposes private Viva Engage community and event content that users are authorized to access.
  • Work IQ APIs provide a unified REST endpoint for agents and workflows, replacing legacy Copilot Chat endpoints and standardizing access.

New Features

  • Use Python in Edit with Copilot in Excel for advanced analysis, automation, and data transformation.
  • Organizational Messages now supports hybrid Azure AD joined devices.
  • Copilot Chat is available in the side pane while using Copilot Search.
  • Open Outlook emails directly within Copilot Chat and Copilot Notebooks.
  • Unified web and work chat experience with a dedicated Work IQ toggle.
  • Updated Copilot Notebooks UX with a streamlined navigation and opening flow.
  • Page steering and auto-triggering of pages on mobile.
  • Simplified Microsoft 365 Copilot app design across web and desktop.
  • Generate and edit images in Copilot Cowork using ChatGPT Images 2.0.
  • Select Researcher models and modes directly in Copilot Chat.
  • Teams meetings can be used as references in Copilot Notebooks.
  • Schedule meetings with Copilot chat in classic Outlook for Windows.
  • Reference an email when creating a presentation in PowerPoint.
  • Explain selected slide text during PowerPoint Live meetings with Copilot.
  • Use voice Q&A during Read Aloud in Word.
  • Sonnet 5 is available in the Copilot models menu and is the default for higher reasoning tasks.

Hints

  • Microsoft 365 Copilot app and several features are available on Web; some items also apply to Windows, Mac, Android, and iOS as noted.
  • Some features require a Microsoft 365 Copilot license or AI SKU.
  • Roadmap IDs are provided for several items and can be used for tracking rollout status.

Product Information

Vendor: Microsoft

Product: 365 Copilot

Product type: Other

Platform: Web

Vendor release date: Aug 25, 2026

Original release notes: View on vendor site

Published on updatealert.io: Aug 27, 2026

Description: AI assistant integrated into Microsoft 365 productivity workflows.

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