15th Apr 2026 - Maintenance of the Audioform endpoint

The endpoint to retrieve an audioform result has been updated.

What has changed:

The version header is documented to be mandatory, and this is now enforced.

How does this work

You need to specify the version number (1, 2, or 3) you wish to get the result in.
Historically, if you didn't specify that version you would get an early alpha version (version 0.0.1).

What are the users required to change:

Early adopters have used this endpoint in beta form, and are working with an early, undocumented, version 0.0.1. They would expect the call to succeed and return a result in this early developement version.

The change means that their calls will now fail with a 422 status code if they aren’t setting the version header in the /audioforms GET request.

They need to set the version header to 0.0.1 and don’t need to change the rest of the code. They are also encourage to migrate to version 3.