spec/responsecx.json (node scripts/api-history.mjs).
An operation listed as removed was retired from the published surface — a caller still using
it must migrate, not merely re-read the docs. Added operations link to their reference pages.
Operations added or removed in the ResponseCX API surface, derived from the spec’s own revision history — the API’s changelog, distinct from the docs changelog.
spec/responsecx.json (node scripts/api-history.mjs).