Microsoft As a new admin to the Microsoft 365 admin center, you’ll get weekly emails from the message center about upcoming changes to your services until September 5, 2026. Update your preferences to continue getting emails like this one. Go to preferences https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/mcpreferences Message center announcements ============================ ** August 24, 2026 - August 30, 2026 NOVELLELIVING COM a12e9345-2de8-4453-a7ef-16de02ee2adc ** Major updates ---------------- Admin app retiring in Teams, Outlook and Microsoft365.com MC1462922 | August 27 - The Admin app for very small businesses in Teams, Outlook, and Microsoft365.com will retire by October 2026, with rollout starting August 2026. It will no longer be pre-installed or supported. Admins should use Microsoft Admin Center, Teams Admin Center, or Microsoft 365 Admin Agent instead. View more https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/messages/MC1462922?MCLinkSource=DigestMail (Updated) Migrate Free/Busy, MailTips, and Calendar Sharing before EWS deprecation MC1446796 | August 25 - Exchange Web Services (EWS) deprecation starts October 1, 2026, affecting cross-tenant Free/Busy, MailTips, and Calendar Sharing. Migration to Microsoft 365 Cross-Tenant Access Policy begins September 2026, with rollout completing by October 2026. Organizations must migrate to avoid service disruption. Hybrid/on-premises scenarios are excluded. View more https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/messages/MC1446796?MCLinkSource=DigestMail (Updated) Microsoft Exchange Online: Prepare for Exchange Web Services retirement with EWSAllowedAppIDs MC1447678 | August 24 - Exchange Web Services (EWS) in Exchange Online will retire starting October 1, 2026, with full retirement by April 1, 2027. Microsoft introduced EWSAllowedAppIDs, allowing admins to create an allow list of approved apps to use EWS, helping manage access and prevent disruptions during retirement enforcement. View more https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/messages/MC1447678?MCLinkSource=DigestMail ** Additional updates --------------------- (Updated) Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding MC1187682 | August 28 - Microsoft Edge for Business now supports Microsoft 365 Copilot Chat for summarization and contextual grounding across browser tabs, Microsoft 365 documents, and YouTube videos. The feature is off by default, respects DLP and policy settings, and requires Entra ID sign-in and appropriate licensing. Rollout begins mid-September 2026. View more https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/messages/MC1187682?MCLinkSource=DigestMail (Updated) Microsoft Outlook for iOS and Android: Insert signature images from OneDrive MC1437668 | August 28 - Starting late September to late October 2026, Outlook for iOS and Android will let users insert signature images from OneDrive as well as device photo libraries. This feature is enabled by default, requires no admin setup, and respects existing organizational data-sharing policies. No action is needed. View more https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/messages/MC1437668?MCLinkSource=DigestMail Outlook for iOS: Minimum system requirements updated to iOS 26 and above MC1462923 | August 27 - Outlook for iOS will require iOS 26 or later starting mid-September 2026, supporting only the two latest iOS, iPadOS, and watchOS versions. Users on older versions may lose updates and syncing. Organizations should identify affected devices, notify users, and encourage OS upgrades. No admin changes needed. View more https://admin.microsoft.com/AdminPortal/home#/MessageCenter/:/messages/MC1462923?MCLinkSource=DigestMail Allow connections to copilot.cloud.microsoft before the Copilot URL redirect MC1462915 | August 27 - Starting September 2026, Microsoft will redirect users from m365.cloud.microsoft to c … (truncated)