Up until now, if you did not provide an X-Api-Version header in your request towards the Content Management API, legacy API version 1 was used.

To avoid ambiguity and possible unexpected problems, we have decided to change this behavior on projects created from this point on:

• if your project was created before 31 May 2022, 13:00:00: not explicitly passing the X-Api-Version header will default to CMA API version 1 — nothing changes;

• if your project is created after 31 May 2022, 13:00:00: not explicitly passing the X-Api-Version header will result in an error and a 422 Unprocessable Entity status code.