In this case, it would often be better to make a breaking change than to have a client that thinks it's fetching all the items but isn't. For a frontend applica

In this case, it would often be better to make a breaking change than to have a client that thinks it's fetching all the items but isn't. For a frontend application sure, it might be fine that the user only sees one page, but it might also be a big problem. For backend APIs you absolutely don't want to add a new pagination mechanism that clients don't know about.