Release notes 2025: Azure Health Data Services
This article describes features, enhancements, and bug fixes released in 2025 for the FHIR® service, Azure API for FHIR, DICOM® service, and MedTech service in Azure Health Data Services.
January 2025
FHIR service
Enhancement: Improved error handling and validation
HTTP Method Validation for Transaction Bundle Requests:
Added validation to ensure the HTTP method in the Request component of the transaction bundle is a valid HTTPVerb enum value. If the HTTP method is invalid or null, a RequestNotValidException is thrown with a 400 Bad Request status, providing a clearer error message to users.
CMK Error Handling: Improved error handling for operations dependent on customer-managed keys. Users will now see a more specific error message and a link to Microsoft's troubleshooting guide if issues occur related to CMK.
100 items limit on include and revinclude searches
The FHIR® server has a limit of 100 items on include and revinclude searches. A recent update fixed an issue where this limit was not being applied in specific conditions. Customers will receive a warning and truncated results if the limit is exceeded. Details on limits can be found in the Overview of FHIR search. To manage this, use the _count parameter to reduce the number of returned results. In the short term, we plan to increase the limit to 1000
Bug Fixes
Billing in Sweden Central region: An issue was discovered where subscriptions in the Sweden Central region were not being billed correctly. We corrected the error, and billing has now been enabled in Sweden Central region. If you were affected by this error, you will not be responsible for any missed charged prior to your January bill.