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Microsoft Copilot (Microsoft 365): Copilot Chat in Outlook expands to reason over inbox, calendar, and enterprise data

⚠ Target confidence: low — Microsoft has moved this date 2 times (descriptive, not a forecast).

<p>Copilot Chat in Outlook expanding to support reasoning over a user's entire inbox, calendar and other enterprise data for Microsoft 365 Copilot Chat users (without a Microsoft 365 Copilot license) .</p>

Target October CY2026Cloud GCC, GCC High, DoDPlatform Android, Desktop, iOS, Mac, WebSource last updated 2026-10-29

Affected: Outlook, Microsoft Copilot (Microsoft 365)

Related changes

Change history

2026-10-30 · Target date changed
2026-10-28 · Target date changed

View at Microsoft →