Changelog

GET /api/v1/projects/{project_ref}/changelog/{channel}/{os}/{arch}

Check responses have no changelog text. Unknown channel → 400 INVALID_QUERY_PARAM. Channel-token mismatch → 404 NOT_FOUND (not 403). Query: from_version, changelog_scope (range_all / range_platform / target_only), changelog_layout. No client limit. Overflow truncates at HTTP 200.