As a reminder, starting on September 3, 2025, you can no longer register new applications for the DSTU2 Oracle Health Millennium Platform product or choose the DSTU2 FHIR base URL for SMART application launches.
Existing applications will remain associated with the DSTU2 Millennium Platform API product and DSTU2 FHIR base URL for launch. However, if you remove the API product or change the FHIR base URL to R4, you will no longer have access to the DSTU2 API product or DSTU2 FHIR base URL.
Review the original announcement about the end of support for DSTU2 for additional timelines.