Legacy SharePoint Online Content Delivery Network (CDN) domain to be retired—review configurations [MC1184996]

Legacy SharePoint Online Content Delivery Network (CDN) domain to be retired—review configurations [MC1184996]

Message ID: MC1184996 [Introduction]As part of ongoing service modernization, Microsoft has migrated the hosting of SharePoint Online static assets to the Microsoft Azure Front Door (AFD) content delivery network (CDN), using the new domain public-cdn.sharepointonline.com. This migration was previously announced…
(Updated) Microsoft Publisher will no longer be supported after October 2026 [MC716267]

(Updated) Microsoft Publisher will no longer be supported after October 2026 [MC716267]

Message ID: MC716267 (Updated) Updated November 11, 2025: We are updating this post to serve as a reminder of this change. We are dedicated to providing our customers with the tools they need to achieve what matters, in their work and…
(Updated) Microsoft Outlook for Mac desktop: Retiring the admin preference to switch to legacy Outlook [MC1098932]

(Updated) Microsoft Outlook for Mac desktop: Retiring the admin preference to switch to legacy Outlook [MC1098932]

Message ID: MC1098932 (Updated) Updated November 11, 2025: Based on customer feedback we have decided not to proceed with this change. Thank you for your feedback.Beginning mid-August 2025, the New Outlook for Mac will become the default experience for users…
Microsoft SharePoint: Retirement of IDCRL authentication protocol and enforcement of OpenID Connect and OAuth protocols [MC1184649]

Microsoft SharePoint: Retirement of IDCRL authentication protocol and enforcement of OpenID Connect and OAuth protocols [MC1184649]

Message ID: MC1184649 [Introduction:] As part of the Microsoft Secure Future Initiative (SFI) and in alignment with the “Secure by Default” principle, we’re retiring the legacy IDCRL (Identity Client Run Time Library) authentication protocol in SharePoint Online and OneDrive for…
Retirement of Assignments and Courses adaptive card extensions (ACE) in Viva Connections and SharePoint [MC1184647]

Retirement of Assignments and Courses adaptive card extensions (ACE) in Viva Connections and SharePoint [MC1184647]

Message ID: MC1184647 [Introduction]As part of our ongoing efforts to simplify and modernize the Viva Connections experience, we will retire the Assignments and Courses adaptive card extensions (ACEs) for Education customers. ACEs are modular components built using the SharePoint Framework…