We will be removing the upstream_concurrency_map and upstream_job_ids fields from the v1 API. This change will take effect starting April 13th.
If you have integrations that consume v1 API responses, please ensure they do not depend on the upstream_concurrency_map or upstream_job_ids fields. No other fields in the v1 API are affected. The v2 API is unaffected by this change.
If you have any questions or concerns, please reach out to CircleCI Support.