Outlook for iOS and Android will automatically collapse automatic replies in email threads by default starting December 2025. Users can expand these replies if needed. This change applies to all users, requires no configuration, and does not affect message delivery or reply behavior.
Microsoft 365 Copilot’s People agent, launching in Frontier with public preview in November 2025 and general availability in Q1 2026, helps users discover organizational insights from emails, chats, meetings, and documents. Admins control deployment and access via Microsoft Entra ID groups; users need a Copilot license and enabled People Skills service.
Agent mode in Excel, formerly part of the Frontier program, will be generally available worldwide from early December 2025 to late February 2026. It allows Microsoft 365 Copilot-licensed users to build and edit workbooks alongside AI, supporting tables, charts, PivotTables, and formulas without admin changes.
App Skills in Excel will be retired starting December 2025, replaced by Agent Mode in Excel for a streamlined experience. All Microsoft 365 Copilot Excel users will lose App Skills access. No admin action is needed; users should explore Agent Mode and update documentation accordingly.
Identify if an external user comes from a domain that is impersonating the recipient tenant’s own domains, during their initial contact with an enterprise user via Teams messages.
With the lite version of Copilot Studio in M365, users can now use Office skills like generating PowerPoint decks, Excel spreadsheets, and Word documents by chatting with the agent. This helps users save time by completing commonly used tasks. These Office skills will come as a part of the “Generate documents, charts, and code” capability in Copilot Studio lite (formerly known as Code Interpreter).
We are announcing the availability of security scan recommendations in Security Hub for Power Pages. This feature will reach general availability on November 28, 2025.
As of August 2025, Power Automate flows and Agent flows (Copilot Studio) with HTTP triggers or Teams Webhook triggers that have logic.azure.com in the URL moved to a new URL as a part of a critical infrastructure upgrade to improve execution speed and provide new features.
Enhance Content Explorer by introducing new summary metrics that provide better visibility into scanning and classification activities. This update will include:
1. Unscanned Files Summary
Displays the count and percentage of files that have not been scanned for classification, helping admins identify gaps and take corrective action.
2. Classification History Insights
Shows trends and details of classification changes over time, helping admins to discover the stale data in their organization
Earlier admins had to create new connections to adopt to the hierarchical permissions for ServiceNow Knowledge & Catalog Copilot Connectors as the edit capability was missing. Now, admins can easily edit their existing connections to switch between the permission handling option i.e. Simple vs Advanced to quickly adopt to the hierarchical permission feature.
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