(Updated) Microsoft Exchange Online: New Message Trace will be GA; legacy Message Trace will retire [MC1092458]

(Updated) Microsoft Exchange Online: New Message Trace will be GA; legacy Message Trace will retire [MC1092458]

Message ID: MC1092458 (Updated) Updated December 19, 2025: The tentative timeline for Public Preview of the new Message Trace support on Graph API has been delayed from December 2025 to now January 2026.This does not impact the deprecation timeline for…
(Updated) Retirement of several Microsoft Planner features in early 2026 as part of a Planner update [MC1193421]

(Updated) Retirement of several Microsoft Planner features in early 2026 as part of a Planner update [MC1193421]

Message ID: MC1193421 (Updated) Updated December 19, 2025: We have updated the content. Thank you for your patience.[Introduction] In early 2026, a major update of Planner will begin rolling out. This update will introduce several new capabilities. In addition, several…
Microsoft Defender for Office 365: Admins can block external users in Microsoft Teams from Defender Portal [MC1200058]

Microsoft Defender for Office 365: Admins can block external users in Microsoft Teams from Defender Portal [MC1200058]

Message ID: MC1200058 [Introduction] We’re introducing an integration between Microsoft Teams and Microsoft Defender for Office 365 that allows security admins to manage blocked external users in Teams through the Tenant Allow/Block List (TABL) in the Microsoft Defender portal. This…