Microsoft 365 Message Center Archive

MC1183006

(Updated) Introducing simplified admin controls to manage external collaboration in Teams admin center

MC1182698

(Updated) Microsoft Copilot Notebooks: Overview page with Copilot-powered summaries and insights

MC1166867

(Updated) Microsoft Defender for Office 365: Enhancing the quarantine email preview experience

MC1156360

(Updated) Microsoft 365 Copilot: Copilot Chat for Teams Chats, Channels, Calling, and Meetings

MC1127234

(Updated) Enhanced Personalization via Communication Memory in Copilot

MC1085133

(Updated) Microsoft Teams: Rule-based enablement of Microsoft 365 third-party apps in the Teams admin center

MC1234254

Updates available for Microsoft 365 Apps for Current Channel

MC1230891

SharePoint Designer 2013 reaches end of support on July 14, 2026

MC1217153

(Updated) Microsoft Purview compliance portal: Information Protection – Email attachment preview in Activity Explorer

MC1189002

(Updated) Microsoft 365 Copilot: Copilot chats in search results

MC1189001

(Updated) Microsoft 365 Copilot: Voice chat in Microsoft 365 Copilot

MC1188222

(Updated) Microsoft Teams: Private chat for organizers and presenters in structured meetings, webinars, and town halls

MC1187682

(Updated) Microsoft Edge: Microsoft 365 Copilot will support summarization and contextual grounding

MC1183009

(Updated) Microsoft 365 Copilot: Podcast voice interactions make audio experiences conversational

MC1174856

(Updated) Microsoft 365 Copilot: Session persistence enhancement for Copilot chat

MC1164381

(Updated) OneDrive: Simplified file transfer for departing employees

MC1231506

Dynamics 365 Project Operations – Public preview of the corrections for intercompany project transactions feature

MC1231437

Update PowerPoint to maintain Captions

MC1231206

Windows Office Hours: February 19, 2026

MC1231135

Dynamics 365 Contact Center - Set a custom voice for voice agents

MC1230897

Dynamics 365 Project Operations - Enable expense delegates to create cash advance requests

MC1230889

Outlook for Windows report retirement in the Exchange admin center

MC1230888

Teams on the web – Browser Update Required by May 15, 2026

MC1227621

(Updated) Microsoft Defender Antivirus: Change to exclusion storage when using MDE security settings management

MC1227077

(Updated) Microsoft Teams: Digital signage in Teams Rooms on Android