(Updated) Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]

(Updated) Auto upgrade of shared calendars from legacy MAPI model to modern REST model [MC1287370]

Message ID: MC1287370 (Updated) Updated April 29, 2026: We have updated the content. Thank you for your patience. [Introduction]Microsoft is introducing an automatic upgrade for shared calendars in Outlook and Exchange Online, transitioning from the legacy MAPI-based model to the modern…
Microsoft Security Exposure Management Secure Now [MC1288236]

Microsoft Security Exposure Management Secure Now [MC1288236]

Message ID: MC1288236 (Updated) [Introduction]Microsoft is taking steps to help keep customers safe as AI models become more advanced including plans to incorporate advanced AI models directly into our Security Development Lifecycle (SDL) to identify vulnerabilities and develop mitigations and updates. We are also sharing guidance through Microsoft Security…
Microsoft Teams: Enhanced cross-platform join via Session Initiation Protocol (SIP) for Teams Rooms on Android [MC1294522]

Microsoft Teams: Enhanced cross-platform join via Session Initiation Protocol (SIP) for Teams Rooms on Android [MC1294522]

Message ID: MC1294522 [Introduction] Microsoft Teams Rooms on Android will soon be able to join third-party meetings using Session Initiation Protocol (SIP). This capability enables seamless cross-platform interoperability, allowing users to connect to external meeting services directly from Teams Rooms…
Exchange Online: Retirement of legacy TLS versions for POP and IMAP connections [MC1293480]

Exchange Online: Retirement of legacy TLS versions for POP and IMAP connections [MC1293480]

Message ID: MC1293480 [Introduction]We are retiring support for legacy Transport Layer Security (TLS) versions for POP3 and IMAP4 connections to Exchange Online. This change improves security and aligns with current industry standards. TLS 1.0 and TLS 1.1 are no longer…
(Updated) Outlook: New and improved People Hub on Web [MC1199768]

(Updated) Outlook: New and improved People Hub on Web [MC1199768]

Message ID: MC1199768 (Updated) Updated April 27, 2026: We have updated the timeline. Thank you for your patience. [Introduction]We’re introducing the new and improved People Hub in Outlook Web, designed to deliver a modern, multi-column contacts experience with fast search and…
Power Platform – Updated Message: Inactive sandbox environments cleanup [MC1289789]

Power Platform – Updated Message: Inactive sandbox environments cleanup [MC1289789]

Message ID: MC1289789 (Updated) Update: After reviewing admin feedback, we will not be introducing this feature at this time. An updated message with an alternative solution for managing inactive sandbox environments will be published at a later date. Original message:…