Oystehr v1.40 — Oystehr & Ottehr

Oystehr v1.40 - April 23, 2026

FHIR API

The async bundle (opens in a new tab) and async bulk (opens in a new tab) request patterns have been implemented for both FHIR R4B and R5.
The FHIR API now supports the If-None-Exist header for conditional create (opens in a new tab).

Zambda Service

The Zambda service and admin console now support downloading the Zambda source as a zip file.
The s3-upload endpoint (opens in a new tab) has been deprecated. Please use the new presigned-url endpoint in the future.

Admin Console

The admin console now includes the current project ID in every URL. This enables permalinking to resources in specific projects when you have access to more than one project.