We’re making some performance optimisations in Confluence Cloud, and this is going to include some changes to the REST API.
Currently, any queries to the /content/{id}/child/attachment endpoint will implicitly add an expansion on content labels (metadata.labels).
This is going to be removed over the next few weeks, so if any of your products - such as Connect add-ons - rely on this, you’ll need to update them to explicitly request this expansion, e.g. /content/123/child/attachment?expand=metadata.labels
If this is going to be a problem for you, please let us know so we can help you manage the change.
Cheers,
Leo and the Confluence Team