SharePoint governance updates tighten content discovery for Copilot and Search on July 23, 2026 Admin update Copilot in SharePoint Microsoft Copilot SharePoint +
SharePoint external sharing shifts to Entra B2B as one‑time passcodes are retired on May 19, 2026 Guest user Microsoft OneDrive Security SharePoint User Experience +
External Sharing in SharePoint and OneDrive is changing: What You Need to Know on June 20, 2025 Azure B2B collaboration Microsoft 365 Office 365 SharePoint +