MC1420901 Stay informedUpdated messageFeature updateUser impact

(Updated) Notebooks in the M365 Copilot App

Microsoft 365 apps Microsoft 365 admin center

Versions captured by this deployment. Earlier versions and notices may be missing; first observed is not first published.

Ends: 16 Nov 2026
Roadmap: 566318
Platforms: iOS

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

Microsoft's start date: 8 Jul 2026
Last changed by Microsoft: 14 Sep 2026
First seen here: 19 Oct 2026
Versions seen: 1

What the notice says

Microsoft's text, with its sections, lists and tables; source markup removed

Updated September 14, 2026: We have updated the timeline. Thank you for your patience.

What and Why

We’re updating the Notebooks experience in the Microsoft 365 Copilot app to help users keep project work organized across conversations. Notebooks bring chats, generated content, and reference materials together in a lightweight, persistent workspace so users can stay in context and move work forward. This update supports personal and team productivity by making it easier to continue work across Microsoft 365 Copilot and OneNote. The existing Notebooks experience in OneNote remains unchanged.

This message is associated with Microsoft 365 Roadmap ID 566318.

Rollout Schedule

General Availability Worldwide: Rollout will begin in late September 2026 (previously late August) and is expected to be complete by early October 2026 (previously early September).

Impact on Your Organization

Who is affected: Users with a Microsoft 365 Copilot license will see Notebooks in the Microsoft 365 Copilot app after rollout reaches your tenant.

Platforms/Services

Microsoft 365 Copilot app
OneNote
Microsoft 365 Copilot Notebooks
Supported Microsoft 365 content created from Notebooks, including Word documents, PowerPoint presentations, Excel spreadsheets, Copilot Pages, and other supported objects

What will happen

Users with a Microsoft 365 Copilot license will see Notebooks in the Microsoft 365 Copilot app.
The existing Copilot Notebooks entry point and existing Notebook data remain in place.
Notebooks in OneNote are unchanged.
Notebooks stay in sync between the Microsoft 365 Copilot app and OneNote.
Users can open and continue working with Notebooks in either the Microsoft 365 Copilot app or OneNote.
Content created from a Notebook, including Word documents, PowerPoint presentations, Excel spreadsheets, Copilot Pages, and other supported objects, remains associated with that Notebook.

Screenshot - Lightweight Notebook with Chats, Creations and References

Action Required/Recommendations

No admin action is required.

We recommend that you:

Inform helpdesk and support teams that licensed users may see Notebooks in the Microsoft 365 Copilot app beginning in late August 2026.
Update internal user guidance if your organization documents Microsoft 365 Copilot or OneNote Notebooks experiences.

Compliance considerations

Consideration	Explanation
Does the change alter how existing customer data is processed, stored, or accessed?	The update makes existing Notebook data available through the Microsoft 365 Copilot app while keeping Notebooks in sync with OneNote. The post states that the existing entry point and existing Notebook data remain in place.
Does the change introduce or significantly modify AI/ML or agent capabilities that interact with or provide access to customer data?	The update expands the Notebooks experience in the Microsoft 365 Copilot app, where users can bring chats, generated content, and reference materials together in a persistent workspace.
Does the change provide end users any new way of interacting with generative AI?	Users with a Microsoft 365 Copilot license will see Notebooks in the Microsoft 365 Copilot app and can use Notebooks to work with chats, generated content, and reference materials.

566318

What changed

Between the versions this installation saw, newest first

This installation has seen one version of this notice, first on 19 Oct 2026. Later changes will show here.

Linked documentation

Microsoft pages the notice links to

The notice links to no Microsoft Learn or Support page that this installation reads.

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.
Versions before 19 Oct 2026: this installation first saw the notice after Microsoft posted it.