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Stay informed about Microsoft 365 service updates and changes
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Stay informed about Microsoft 365 service updates and changes.
Brand managers can now upload custom presentation skills as Markdown files to Brand Kit for use with Copilot in PowerPoint Desktop, enabling consistent, organization-approved presentation guidance. Rollout begins mid-September 2026. Organizations should manage governance, review skills regularly, and ensure compliance with policies.
Microsoft 365 apps
Microsoft Copilot (Microsoft 365)Brand managers can upload custom presentation skills as Markdown files to Brand Kit for use with Copilot in PowerPoint Web, enabling consistent, reusable guidance for presentations. Rolling out worldwide in September 2026, this requires governance, testing, and communication within organizations. Compliance and licensing must be reviewed.
Microsoft 365 appsMicrosoft Copilot (Microsoft 365)Brand Skill support in PowerPoint Copilot for Mac lets brand managers upload and share custom presentation skills as Markdown files via Brand Kit, guiding consistent presentation creation. Rolling out September 2026, it requires governance, testing, and compliance checks before publishing for organizational use.
Microsoft 365 appsMicrosoft Copilot (Microsoft 365)Microsoft Purview will enhance audit logging for RBAC permission checks starting late September 2026, adding two new audit operations for better access investigation and troubleshooting. This feature is enabled by default, requires no action, and improves administrators' visibility into role-based access decisions without impacting existing systems.
Microsoft PurviewMicrosoft Teams is introducing a centralized resource management experience in chats and channels, allowing users to pin and organize resources below headers and access them on mobile. The "In this chat" and "In this channel" panes will be removed. Rollout starts late September 2026; no admin action needed.
Microsoft TeamsIE mode in Microsoft Edge is supported through at least the end of 2029 to help organizations run legacy websites and applications. Early migration planning is advised. No immediate action is required unless your organization depends on IE mode, in which case inventory and modernization are recommended.
Microsoft 365 suiteMicrosoft will retire support for loading Power Query data into Python in Excel for the web on October 16, 2026. This affects users combining Power Query and Python in Excel for the web but not Excel desktop. No admin action is needed; affected users should be notified and workflows reviewed.
Microsoft 365 appsMicrosoft is updating Microsoft Browser and Visio usage reports on September 21, 2026, improving metric accuracy and including more apps. Active-user counts may rise, but historical data won't change. Administrators should review reports, note the baseline change date, and validate API integrations.
Microsoft 365 suiteStarting end of September 2026, Viva Engage will stop sending email notifications to users without valid mailboxes, reducing email system load and improving delivery. Users with supported mailboxes or Teams notifications remain unaffected. No action is required, but admins should review mailbox configurations and update support resources accordingly.
Microsoft VivaMicrosoft 365 Copilot in PowerPoint introduces Strict Brand Adherence and Notes Steering settings, enabling Brand Managers to ensure presentations strictly follow approved templates and embed guidance in speaker notes. These features enhance brand consistency, reduce manual edits, and require no user action but need Brand Manager configuration.
Microsoft 365 appsMicrosoft Copilot (Microsoft 365)Starting October 2026, Microsoft 365 admins can add up to 10 custom properties from external systems to profile cards via Microsoft Graph People connectors. This feature is off by default and configurable in the admin center, enhancing user profiles for better collaboration and discoverability.
Exchange OnlineMicrosoft Purview Data Lifecycle Management planned new AI-driven insights for Copilot and AI app interactions to enhance retention policies and data security. However, this change will not proceed at this time. No immediate action is required from admins.
Microsoft Copilot (Microsoft 365)Microsoft Purview