GCC High Priority Update
Week of April 9, 2026
Microsoft Purview is expanding its presence in the Microsoft Admin Center, giving AI and IT admins direct visibility into oversharing risks and the ability to drive remediations without leaving the admin console. Admins can also assess how much of their sensitive Copilot interactions are protected and enable Purview Data Loss Prevention for Microsoft 365 Copilot from a single location. This update lowers the barrier to securing Copilot adoption by surfacing critical governance controls where admins are already working. The feature is currently in development and expected to begin rolling out in September 2026.
GCC High M365 Roadmap Updates
Find out what’s coming, what’s going, and what it means for you and your operations. View all Microsoft 365 GCC High roadmap updates for the week of April 9, 2026.
Outlook: Multiple Intune Accounts for Outlook on iOS
Multiple MAM (Mobile Application Management) Intune Accounts will now be supported in Outlook for iOS. Only one MDM (mobile device management) account will be supported at a time per device.
ID: 558252 Release: Microsoft 365 app, Outlook – Worldwide (Standard Multi-Tenant), GCC, GCC High Tags: May CY2026
Microsoft Teams: Improved organization for muted and meeting chats
Microsoft Teams automatically organizes your chats with new built in sections that help reduce clutter and keep conversations easy to find. Muted chats (on by default) are grouped together in a dedicated area, while meeting chats (off by default) can be collected into a single section for quick access. You’re always in control, as each section can be turned on or off based on your preferences.
ID: 559605 Release: Microsoft Teams – Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD Tags: May CY2026
Microsoft Teams: Sharing recap access
Recording and transcript owners can now grant recording and transcript access to specified people when copying or sharing recap link, and the specified people can access the recap without having to request access.
ID: 559606 Release: Microsoft Teams, Microsoft Copilot (Microsoft 365) – Worldwide (Standard Multi-Tenant), GCC, GCC High Tags: May CY2026
Microsoft Purview: Purview in Microsoft Admin Center
AI and IT admins in Microsoft Admin Center can 1) gain visibility around oversharing risks and drive remediations 2) Understand how much of sensitive copilot interactions are protected and turn on Purview DLP for M365 Copilot right from there. Enables secure adoption of Copilot.
ID: 559617 Release: Microsoft Purview – GCC, GCC High, DoD Tags: September CY2026
Microsoft Purview: Apply sensitivity labels with user-defined permissions in Office for the web in Microsoft 365
Office for the web in Microsoft 365 supports the application of sensitivity labels with user-defined permissions.
ID: 468888 Release: Excel, Microsoft Purview, PowerPoint, Word – Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD Tags: April CY2026
Microsoft Teams: Consult and merge a PSTN caller through DTMF
Users have always been able to dial a phone number and add someone to a meeting. Now, meeting organizers can seamlessly consult and merge PSTN callers to active Teams meetings even if they are behind auto-attendants that require Dual-Tone Multi-Frequency, or DTMF, navigation. For example, you can connect with and consult a subject matter expert through an audio conference dial-in before adding them to the group discussion.
ID: 518218 Release: Microsoft Teams – Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD Tags: April CY2026
Microsoft Teams: Meeting Notes now available for instant meetings
Teams meeting Notes, powered by Loop, are now available for instant meetings that started via ‘Meet now’ from the calendar. Notes are Loop components in Teams meetings and chats that allow end users to co-create and collaborate on their meeting agenda, notes, and action items that can be co-authored and edited by everyone. Since Notes are Loop components, they stay in sync across all the places they have been shared. Once added, meeting notes can also be shared and edited in the Loop app in your web browser.
ID: 541831 Release: Microsoft Teams – Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD Tags: April CY2026
Microsoft Purview: Data Loss Prevention– Enhanced content extraction and file type coverage for DLP on Mac devices
With this release, the file type coverage to scan, classify and protect sensitive content on Mac devices with Microsoft Purview Data Loss Prevention policies will increase from current ~40 file types to 100+ file types. This release will make the coverage of file types on endpoint consistent with other locations such as Exchange, SharePoint and OneDrive. This will also include other enhancements like detecting label from pfile, detecting sensitive content in metadata, and detecting sensitive content in PDF forms.
ID: 558289 Release: Microsoft Purview – GCC, GCC High, DoD Tags: March CY2026
Microsoft Teams: Book future meetings directly from Teams panels
This item is cancelled as a duplicate of 557168. We are sorry for any inconvenience it may cause. You can now make an upcoming meeting reservation from a Teams panel by browsing the calendar on the device and choosing any open time slot through midnight the next day. Add a guest during booking, streamlining ad-hoc scheduling and coordination. Available with Teams Rooms Pro and Shared Device licenses.
ID: 558287 Release: Microsoft Teams – GCC High Tags: May CY2026