Starting January 6, 2026, Zero-hour auto-purge (ZAP) will be enabled by default in Microsoft Defender for Office 365 Plan 1, automatically moving malicious Teams messages to admin quarantine. Tenants can opt out before January 6, 2026, and admins manage quarantined content via the Security portal.
Microsoft 365 Copilot is now accessible from the OneDrive activity center on macOS, allowing users with a Copilot license to summarize documents, generate FAQs, and ask questions directly from files. The feature, enabled by default, began rolling out mid-November 2025 and requires qualifying Microsoft 365 plans.
The SharePoint page agent, a declarative Copilot agent, enables users with Microsoft 365 Copilot licenses to create and refine SharePoint pages using natural language within supported apps. Public preview starts mid-November 2025, with admin controls to enable or disable the feature.
Microsoft 365 Copilot introduces a hands-free, conversational Voice catch-up feature in Outlook mobile to summarize unread emails and perform actions like flagging, archiving, or drafting replies. Rolling out from November 2025, it enhances accessibility and productivity without admin setup, requiring a Copilot license.
Starting November 24, 2025, Microsoft Viva Engage will support manual multi-language post creation on the web, allowing premium users to publish posts in up to 41 languages. Readers see posts in their locale, with support across Teams, Outlook, SharePoint, and mobile. Attachments must be reuploaded per language.
Opal (Frontier) is a new Computer Use Agent experience for Microsoft 365 enterprise users, available via tenant admin setup in Copilot Settings. Launching mid-November 2025 in public preview, it requires Intune and Copilot licenses, group selection, and admin configuration before user access.
Microsoft Teams will introduce an opt-in native macOS screen and window sharing feature using Apple’s APIs, starting targeted release in early December 2025 and general availability by mid-January 2026. It is disabled by default, requires no app restart, and improves performance for Mac users in Teams meetings.
Microsoft 365 Copilot introduces Word, Excel, and PowerPoint agents in the Frontier program to enhance content creation via multi-turn chat. Available from today, these agents assist with document, data, and presentation tasks, accessible through the Copilot app for tenants with Anthropic enabled. No action required.
Agent Mode in Microsoft 365 Copilot for PowerPoint allows users to edit presentations conversationally while preserving formatting and branding. Available mid-November 2025 for Windows Insiders Beta Channel users with a Copilot license, it uses enterprise data to enhance slides and is enabled by default.
Outlook Mobile will add a setting to hide declined meetings, matching New Outlook and Outlook for the Web. This feature, rolling out December 2025 to January 2026, offers a cleaner calendar view without admin changes. Users with declined meetings shown elsewhere will see this new option.
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