Microsoft 365 Message Center item MC1454377
MC1454377 - Agent Builder capabilities update
Agent Builder updates will enable default capabilities for new agents, similar to Microsoft 365 Copilot, with customizable options. The knowledge setup interface will be improved, and "Uploaded Files" will be renamed "Attachments." Changes roll out globally in late August 2026, with no impact on existing agents or required actions.
- Message Center ID
- MC1454377
- Category
- plan For Change
- Severity
- normal
- Services
- Microsoft Copilot (Microsoft 365)
- Tags
- Feature update, Admin impact
- Published
- 2026-08-13
- Last updated
- 2026-08-13
- Expires
- 2026-10-26
[What and Why:] We’re updating Agent Builder to make creating and configuring agents simpler and more intuitive. New agents will have capabilities enabled by default, providing access similar to Microsoft 365 Copilot. Builders can continue to customize and scope capabilities as needed to support specialized tasks and organizational requirements. We are also introducing an improved configuration experience to make knowledge setup easier to understand and manage. In addition, the existing "Uploaded Files" label will be renamed to "Attachments." This is a terminology update only and does not change functionality. [Rollout Schedule:] General Availability (Worldwide): Rollout will begin in late August 2026 and is expected to complete by late August 2026. [Impact on Your Organization:] Who is affected: Users who create new agents in Agent Builder. Platforms/Services: Agent Builder, Microsoft 365 Copilot. What will happen: Newly created agents will have capabilities enabled by default. Existing capabilities controls will remain available, allowing creators to tailor agent behavior and access as needed. The knowledge configuration experience will be updated with a more intuitive user interface. The "Uploaded Files" option will be renamed to "Attachments." Existing agents will not be impacted by this change. [Action Required/Recommendations:] No action is required. Existing agents will continue to function as they do today, and current options for configuring agent knowledge and capabilities will remain available. [Compliance Considerations:] No compliance considerations identified, review as appropriate for your organization.