Microsoft Copilot (Microsoft 365): [Copilot Chat] Email attachment summarization (Modern Attachments) Beta
Data as of 2 hours ago (9 September 2026)
Status Launched
Release month September 2025
Release ring General Availability
Products Microsoft Copilot (Microsoft 365) Outlook
Cloud instances Worldwide
Platforms AndroidDesktopDeveloperLinuxMacTeams and Surface DevicesWebiOS
Description
Users will be able to reason over additional attachment content, along with the email body, in Copilot Chat. Support will be extended to Word, Excel, PowerPoint, Pdf, Text, Json and Xml files mentioned in the email as links (Modern Attachments).
Change history
Added to the roadmap 31 July 2025. Tracked here since 1 September 2026. Earliest target we recorded: September 2025 (since tracked — Microsoft may have moved it before we started watching).
Nothing has changed on this item since tracking began on 1 September 2026. Changes appear here as Microsoft updates the feed.