Microsoft Teams: Custom Dictionary

Tenant administrators can now upload a Custom Dictionary through the M365 Admin Portal’s Copilot Settings page to include tenant-specific terminologies. This enhancement improves entity recognition in Teams meeting transcripts, benefiting both Recap and Copilot’s understanding of the content.

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The May 2025 Windows non-security preview update is now available

The May 2025 non-security preview update is now available for Windows 11, version 24H2 and Windows 10, version 22H2. Information about the contents of this update is available from the release notes, which are accessible from the Windows 11 and Windows 10 update history pages. To learn more about the different types of monthly quality updates, see Windows monthly updates explained.

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Microsoft Outlook for iOS/Android: New formatting options for composing emails

Microsoft Outlook for iOS/Android will introduce new formatting options for composing emails, including font size selection, default font settings, and format painter/eraser tools. Rollout starts in June 2025 and completes by July 2025. Admins can manage these settings via mobile application management solutions like Microsoft Intune. No pre-rollout action required.

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Microsoft Viva Insights: Skills insights for leaders

Microsoft Viva Insights will soon allow leaders to use Microsoft 365 Copilot to explore team skills insights via natural language prompts, generating dynamic visual reports. This feature requires a Microsoft 365 Copilot license or a Viva Insights subscription and will be available by default starting mid-June 2025.

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Microsoft Teams: When selecting “Unread Chats,” users will land on the last read message

Microsoft Teams will soon default to landing on the last read message when selecting “Unread Chats.” Users can choose to land on the newest message instead. Rollout begins in June 2025 and completes by July 2025. No admin action is required, but user notification is recommended.

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Product transitions to the cloud.microsoft domain – May 2025

Microsoft products will transition to the cloud.microsoft domain by May 2025. This domain, introduced in early 2023, will host Microsoft’s authenticated SaaS products. Users will be automatically redirected, and no action is required. Admins should educate users and ensure network connections to cloud.microsoft are not blocked.

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Event Updates visible in email

Event updates will be visible in emails, showing “Event Updated” and the updated location if applicable. Rollout begins in early June 2025 and completes by late July 2025. No admin action is required, but notifying users and updating documentation is recommended.

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Configure End Users for Frontier features in Microsoft 365

Microsoft 365 Admins can configure Frontier features for end users to access experimental AI features before general availability in May 2025. Users need an active Copilot license and must be added to a Microsoft Entra ID group. Configuration varies for desktop, web, and mobile products, with specific controls in the Microsoft 365 Admin Center.

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Microsoft Copilot (Microsoft 365): New file extension for Copilot pages

We are introducing a new file extension for Copilot pages, “.page”. This new file extension will continue to support admin toggles, sensitivity labels, data loss prevention, multi-geo, Purview eDiscovery, version history, export, audit logs, and data subject requests. The functionality and support for the .page file extension will be identical to the existing .loop file extension, with the only difference being the file extension and the associated file icon. For a comprehensive list of features supported refer to: Summary table of admin management, governance, lifecycle, and compliance capabilities based on experience
More info: https://learn.microsoft.com/en-us/microsoft-365/loop/loop-compliance-summary?view=o365-worldwide#summary-table-of-admin-management-governance-lifecycle-and-compliance-capabilities-based-on-experience

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Outlook: Report junk + block or unsubscribe in one same action

We’re making it easier to keep your inbox clean and under control. Now, when you report an email as junk, you’ll also have the option to unsubscribe—if that’s available. This helps stop unwanted messages at the source and keeps your blocked list from getting overloaded. If unsubscribing isn’t possible, you’ll still be able to block the sender to prevent future emails. This update gives you more control and a simpler way to manage unwanted messages.

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I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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