check before: 2025-10-27
Product:
Copilot, Copilot Chat, Microsoft 365 Copilot
Platform:
Online, US Instances, Web, World tenant
Status:
Rolling out
Change type:
Admin impact, New feature, Updated message, User impact
Links:
Details:
Summary:
Microsoft 365 Copilot chat will preserve conversations by creating session entries in the navigation pane upon prompt submission, allowing users to return without losing context. This rollout begins December 2025 through March 2026 across all environments, requiring no admin action.
Details:
Updated February 17, 2026: We have updated the content and timelines. Thank you for your patience.
[Introduction]
We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress.
This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users.
This message is associated with Microsoft 365 Roadmap ID 500638.
[When this will happen:]
Worldwide (General Availability): Rolling out from December 12, 2025 (previously December 3), to March 2026 (previously January 12)
GCC: Rolling out from January 19, 2026 (previously January 3), to March 2026 (previously February 2)
GCC High: Rolling out from January 19, 2026 (previously January 3), to March 2026 (previously February 2)
DoD: Rolling out from January 19, 2026 (previously January 3), to March 2026 (previously February 2)
Change Category:
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Scope:
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Release Phase:
General Availability
Created:
2025-10-18
updated:
2026-02-18
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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summary for non-techies**
Microsoft 365 Copilot's upcoming update will automatically save your place in Copilot Chat conversations, allowing you to resume chats without losing context or progress.
Direct effects for Operations**
User Experience Improvement
Users will experience enhanced continuity in conversations, allowing them to return to previous chats without losing context, which can lead to increased productivity.
- roles: End Users, Helpdesk Staff
- references: https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=500638
Potential Confusion with Navigation
Users may initially be confused by the new session entries in the navigation pane, leading to a temporary decrease in efficiency as they adapt to the change.
- roles: End Users, Helpdesk Staff
- references: https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=500638
Configutation Options**
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explanation for non-techies**
XXXXXXX ... free basic plan only
** AI generated content. This information must be reviewed before use.
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change history
| Date | Property | old | new |
| 2026-02-18 | MC Last Updated | 12/11/2025 19:50:54 | 2026-02-17T18:30:11Z |
| 2026-02-18 | MC Messages | Updated December 11, 2025: We have updated the content and timelines. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from December 12, 2025 (previously December 3), to January 12, 2026 (previously December 18, 2025) GCC: Rolling out from January 19, 2026 (previously January 3), to February 2, 2026 (previously January 30) GCC High: Rolling out from January 19, 2026 (previously January 3), to February 2, 2026 (previously January 30) DoD: Rolling out from January 19, 2026 (previously January 3), to February 2, 2026 (previously January 30) | Updated February 17, 2026: We have updated the content and timelines. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from December 12, 2025 (previously December 3), to March 2026 (previously January 12) GCC: Rolling out from January 19, 2026 (previously January 3), to March 2026 (previously February 2) GCC High: Rolling out from January 19, 2026 (previously January 3), to March 2026 (previously February 2) DoD: Rolling out from January 19, 2026 (previously January 3), to March 2026 (previously February 2) |
| 2026-02-18 | MC End Time | 03/02/2026 09:00:00 | 2026-04-30T10:00:00Z |
| 2026-02-18 | MC Summary | Microsoft 365 Copilot chat now preserves conversations by creating a session entry in the navigation pane when a prompt is submitted, allowing users to return without losing progress. This update rolls out worldwide from December 12, 2025, with no admin action required. | Microsoft 365 Copilot chat will preserve conversations by creating session entries in the navigation pane upon prompt submission, allowing users to return without losing context. This rollout begins December 2025 through March 2026 across all environments, requiring no admin action. |
| 2025-12-12 | MC Messages | Updated December 3, 2025: We have updated the content and timelines. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from December 3, 2025 (previously November 5), to December 18, 2025 (previously November 30) GCC: Rolling out from January 3, 2026 (previously November 19, 2025), to January 30, 2026 (previously November 30, 2025) GCC High: Rolling out from January 3, 2026 (previously November 26, 2025), to January 30, 2026 (previously November 30, 2025) DoD: Rolling out from January 3, 2026 (previously November 19, 2025), to January 30, 2026 (previously November 30, 2025) | Updated December 11, 2025: We have updated the content and timelines. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from December 12, 2025 (previously December 3), to January 12, 2026 (previously December 18, 2025) GCC: Rolling out from January 19, 2026 (previously January 3), to February 2, 2026 (previously January 30) GCC High: Rolling out from January 19, 2026 (previously January 3), to February 2, 2026 (previously January 30) DoD: Rolling out from January 19, 2026 (previously January 3), to February 2, 2026 (previously January 30) |
| 2025-12-12 | MC Last Updated | 12/03/2025 19:22:06 | 2025-12-11T19:50:54Z |
| 2025-12-12 | MC Summary | Microsoft 365 Copilot chat now preserves conversations by creating a session entry in the navigation pane when a prompt is submitted, allowing users to return without losing progress. This update rolls out December 2025 to January 2026 across environments, requires no admin action, and improves session reliability. | Microsoft 365 Copilot chat now preserves conversations by creating a session entry in the navigation pane when a prompt is submitted, allowing users to return without losing progress. This update rolls out worldwide from December 12, 2025, with no admin action required. |
| 2025-12-04 | MC prepare | No admin action is required at this time. You may wish to:
Confirm that users have a Microsoft 365 Copilot Starter or Premium license. Inform helpdesk staff of this behavior change. Update internal documentation if you describe Copilot chat behavior. [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=500638 | No admin action is required at this time. You may wish to:
Inform helpdesk staff of this behavior change. Update internal documentation if you describe Copilot chat behavior. [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=500638 |
| 2025-12-04 | MC Summary | Microsoft 365 Copilot chat will preserve conversations by creating session entries in the navigation pane upon prompt submission, allowing users to return without losing progress. This feature, requiring a Copilot Starter or Premium license, will roll out globally from November 5 to 30, 2025, with no admin action needed. | Microsoft 365 Copilot chat now preserves conversations by creating a session entry in the navigation pane when a prompt is submitted, allowing users to return without losing progress. This update rolls out December 2025 to January 2026 across environments, requires no admin action, and improves session reliability. |
| 2025-12-04 | MC Last Updated | 10/30/2025 17:52:28 | 2025-12-03T19:22:06Z |
| 2025-12-04 | MC Messages | Updated October 30, 2025: We have updated the timeline. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to users with a Microsoft 365 Copilot Starter or Premium license. No additional license or add-on is required beyond a valid Microsoft 365 Copilot license. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from November 5, 2025 (previously October 27), to November 30, 2025 (previously October 31) GCC: Rolling out from November 19, 2025 (previously November 3), to November 30, 2025 (previously November 28) GCC High: Rolling out from November 26, 2025 (previously November 10), to November 30, 2025 (previously November 28 DoD: Rolling out from November 19, 2025 (previously November 10), to November 30, 2025 (previously November 28) | Updated December 3, 2025: We have updated the content and timelines. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to Microsoft 365 Copilot Chat and Microsoft 365 Copilot users. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from December 3, 2025 (previously November 5), to December 18, 2025 (previously November 30) GCC: Rolling out from January 3, 2026 (previously November 19, 2025), to January 30, 2026 (previously November 30, 2025) GCC High: Rolling out from January 3, 2026 (previously November 26, 2025), to January 30, 2026 (previously November 30, 2025) DoD: Rolling out from January 3, 2026 (previously November 19, 2025), to January 30, 2026 (previously November 30, 2025) |
| 2025-12-04 | MC End Time | 12/30/2025 09:00:00 | 2026-03-02T09:00:00Z |
| 2025-12-04 | MC How Affect | Who is affected: All users of Microsoft Copilot (Microsoft 365) in commercial, GCC, GCC High, and DoD environments with a valid Microsoft 365 Copilot Starter or Premium license.
What will happen: A session entry will now appear in the navigation pane immediately after a prompt is submitted. Users can navigate away from a chat and return later without losing the conversation. This update improves continuity and reduces the risk of session loss. No changes to admin settings or policies are required. | Who is affected: All Copilot Chat and Microsoft 365 Copilot users in commercial, GCC, GCC High, and DoD environments.
What will happen: A session entry will now appear in the navigation pane immediately after a prompt is submitted. Users can navigate away from a chat and return later without losing the conversation. This update improves continuity and reduces the risk of session loss. No changes to admin settings or policies are required. |
| 2025-10-30 | MC prepare | No admin action is required at this time. You may wish to:
Inform helpdesk staff of this behavior change. Update internal documentation if you describe Copilot chat behavior. [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=500638 | No admin action is required at this time. You may wish to:
Confirm that users have a Microsoft 365 Copilot Starter or Premium license. Inform helpdesk staff of this behavior change. Update internal documentation if you describe Copilot chat behavior. [Compliance considerations:] No compliance considerations identified, review as appropriate for your organization. https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=500638 |
| 2025-10-30 | MC MessageTagNames | New feature, User impact, Admin impact | Updated message, New feature, User impact, Admin impact |
| 2025-10-30 | MC Summary | Microsoft 365 Copilot chat will preserve conversations by creating session entries in the navigation pane when a prompt is submitted, allowing users to return without losing progress. This update rolls out globally from October to November 2025, requires no admin action, and improves chat continuity. | Microsoft 365 Copilot chat will preserve conversations by creating session entries in the navigation pane upon prompt submission, allowing users to return without losing progress. This feature, requiring a Copilot Starter or Premium license, will roll out globally from November 5 to 30, 2025, with no admin action needed. |
| 2025-10-30 | MC Last Updated | 10/18/2025 08:44:15 | 2025-10-30T17:52:28Z |
| 2025-10-30 | MC Messages | [Introduction]
We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to all users where Copilot has been enabled. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from October 27, 2025, to October 31, 2025 GCC: Rolling out from November 3, 2025, to November 28, 2025 GCC High: Rolling out from November 10, 2025, to November 28, 2025 DoD: Rolling out from November 10, 2025, to November 28, 2025 | Updated October 30, 2025: We have updated the timeline. Thank you for your patience.
[Introduction] We're improving the reliability of Copilot chat by ensuring that conversations are preserved even when users navigate away from a chat. With this update, a session entry is created in the navigation pane as soon as a prompt is submitted. This allows users to return to the conversation later without losing context or progress. This capability will be available to users with a Microsoft 365 Copilot Starter or Premium license. No additional license or add-on is required beyond a valid Microsoft 365 Copilot license. This message is associated with Microsoft 365 Roadmap ID 500638. [When this will happen:] Worldwide (General Availability): Rolling out from November 5, 2025 (previously October 27), to November 30, 2025 (previously October 31) GCC: Rolling out from November 19, 2025 (previously November 3), to November 30, 2025 (previously November 28) GCC High: Rolling out from November 26, 2025 (previously November 10), to November 30, 2025 (previously November 28 DoD: Rolling out from November 19, 2025 (previously November 10), to November 30, 2025 (previously November 28) |
| 2025-10-30 | MC How Affect | Who is affected: All users of Microsoft Copilot (Microsoft 365) in commercial, GCC, GCC High, and DoD environments.
What will happen: A session entry will now appear in the navigation pane immediately after a prompt is submitted. Users can navigate away from a chat and return later without losing the conversation. This update improves continuity and reduces the risk of session loss. No changes to admin settings or policies are required. | Who is affected: All users of Microsoft Copilot (Microsoft 365) in commercial, GCC, GCC High, and DoD environments with a valid Microsoft 365 Copilot Starter or Premium license.
What will happen: A session entry will now appear in the navigation pane immediately after a prompt is submitted. Users can navigate away from a chat and return later without losing the conversation. This update improves continuity and reduces the risk of session loss. No changes to admin settings or policies are required. |
| 2025-10-30 | MC Title | Microsoft 365 Copilot: Session persistence enhancement for Copilot chat | (Updated) Microsoft 365 Copilot: Session persistence enhancement for Copilot chat |
| 2025-10-30 | MC End Time | 12/28/2025 09:00:00 | 2025-12-30T09:00:00Z |
Last updated 2 days ago ago
