Even if they respond on why it changed, as stated, the documentation never specified a sort order, so you can’t assume it will be sorted. If they specified in the docs it was sorted, then yes, it would be a breaking change, but since that is not in the specs, its not a breaking change API wise. It may break you app since you assumed it, but that isn’t on twitch to maintain or supply the data in that format. They only need to respect the documents they published.