Assistant MCP server SSE endpoint deprecated — migration to HTTP stream required by August 31
Action Required
Failure to migrate to the new HTTP stream endpoint will result in a complete loss of functionality for applications using the deprecated Assistant MCP server SSE endpoint.
AI Impact Summary
The deprecation of the Assistant MCP server SSE endpoint represents a critical breaking change. Applications relying on this endpoint must migrate to the new streamable HTTP transport endpoint by August 31, 2025, to avoid service disruption. This requires immediate action to update integrations and ensure continued functionality.
Affected Systems
- Date
- Date not specified
- Change type
- deprecation
- Severity
- critical