As previously announced in the API Changes log, we have set a default order for requests to the Contentful APIs. This default ordering is:

If you are currently using ordering in your queries using the order query parameter then you will be unaffected by this change.

If you rely on the default ordering in our API responses and do not use the order query parameter, you may be affected by the change. We encourage you to implement the order parameter to ensure predictable response ordering.