We are announcing the ability to manage the Org-Wide Sharing Control for agents built in Copilot Studio lite in Microsoft Copilot Studio. This feature will reach general availability on October 23, 2025.
Microsoft Purview eDiscovery (Premium) will allow uploading and reviewing non-Microsoft 365 data alongside Microsoft 365 content in review sets starting December 2025. This feature requires no configuration but may need workflow updates and training for compliance teams in GCC, GCC High, and DoD environments.
GPT-5 will become the default Microsoft 365 Copilot model in a phased rollout from October to November 2025. Initially, users can toggle GPT-5 on or off; later, it becomes mandatory with no opt-out. GPT-5 offers faster, more accurate responses with dynamic model routing and reasoning features.
Classic Outlook will gain a Copilot side pane after searches, showing AI-generated summaries from documents and Teams messages. Users can interact and ask follow-up questions. The feature, enabled by default for Microsoft 365 AI SKU users, rolls out from mid-December 2025 to mid-February 2026.
Microsoft Edge for Business introduces Connected Feature Control (CFC) in Public Preview, allowing admins to centrally manage cloud-powered features based on compliance needs. Rolling out from August to October 2025, CFC offers three modes to control AI-driven experiences, with default off and customizable settings for sensitive content and data handling.
Users can now copy agents from the lite Copilot Studio into the full experience, gaining advanced authoring, publishing, lifecycle, and governance features. Rollout starts November 2025. Admins should prepare by managing environments, licensing, security policies, and governance via the Power Platform admin center.
We’re updating how we bill for mid-term subscription changes to improve clarity and efficiency.
When this will happen:
Support for Office 2016 and 2019 ended on October 14, 2025, with no further updates or support. Users should upgrade to Microsoft 365 Apps or Office LTSC 2024 to maintain security, compliance, and performance, as Office LTSC 2021 support ends October 13, 2026.
Starting November 17, 2025, organizations using premium custom HTML templates for Teams Events email notifications must set up and verify their sending domain in Microsoft 365. Without this, custom templates cannot be used, and event emails must originate from an authenticated, customer-owned domain.
We are announcing the ability to reference previous prompts in Copilot for Power Automate desktop in Power Automate. This feature will reach general availability on November 17, 2025.
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