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MC1154790 Stay informedUpdated messageNew featureUser impact

Microsoft 365 Copilot App for Windows: "Update available" button

From Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.
Microsoft 365 Copilot Chat
Microsoft 365 admin center

Rollout

Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".

Schedule dates changed in the text

Date phrases in schedule sentences differ between the versions this installation saw
  • Seen 23 Dec 2025 early November 2025, end of November 2025 → January 2026, end of January 2026
  • Seen 24 Oct 2025 early October 2025, end of October 2025 → early November 2025, end of November 2025

Read from date phrases in Microsoft's text, not from notice metadata. A changed phrase can be a moved rollout, a new milestone or just rewording; "What changed" below shows which.

What the notice says

Microsoft’s text, safely structured

Updated December 23, 2025: We have updated the content and timeline. Thank you for your patience.

Introduction Starting in January, the Microsoft 365 Copilot app for Windows will introduce a new Update button. This button will not block the app UI; users will be able to continue interacting with the app when the button appears. This update encourages users to use the latest version of the app—ensuring access to new features, performance improvements, and security updates—without disrupting their workflow.

When this will happen: General Availability: Rollout begins in January 2026 (previously early November 2025) and completes by end of January 2026 (previously end of November 2025).

How this affects your organization

  • Who is affected: All users of the Microsoft 365 Copilot app on Windows.
  • What will happen:
    • A new Update button will appear in the top-right corner in the app when a newer version is available.
  • Communicate this change to your users to avoid confusion.
  • No admin action is required.
  • For internal documentation, you may wish to note the new update behavior.

What changed

Between archive captures, newest first

  1. Updated October 24,December 23, 2025: We have updated the content and timeline. Thank you for your patience.  Introduction Starting in early November, January, the Microsoft 365 Copilot app for Windows will introduce a new Update available button. This button will not block the app UI; users will be … disrupting their workflow. When this will happen: General Availability: Rollout begins in early November 2025 January 2026 (previously early October)November 2025) and completes by end of November 2025 January 2026 (previously end of October).November 2025). How this affects your organization: Who is affected: All users of the Microsoft 365 Copilot app on Windows. What will happen:A new Update available button will appear in the bottom-lefttop-right corner ofin the app’s navigation paneapp when a newer version is available. The button is non-blocking; users can …

    • Tags New feature, User impact → Updated message, New feature, User impact

    Updated October 24, 2025: We have updated the timeline. Thank you for your patience.  Introduction Starting in early October,November, the Microsoft 365 Copilot app for Windows will introduce a new Update … their workflow. When this will happen: General Availability: Rollout begins in early OctoberNovember 2025  (previously early October) and completes by end of October 2025.November 2025 (previously end of October). How this affects your organization: Who is affected: All users of the …

  3. · first version seen

No related evidence found in this installation's recent collection. This does not establish that no announcement exists.

Not confirmed here

What this page cannot tell you
  • Whether your tenant is affected: this is Microsoft's notice, not a check of your settings.
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