Published: May 2026 | Reading Time: 7 minutes
The updated field will have a header X-GRACE-VERSION: 4.2 in API responses. Legacy feeds without this header must be treated as stale.
If your organization has not yet migrated its E239 parsers to handle v4.2 and the Grace Okonkwo modifications, prioritize this immediately. Delaying implementation will result in reconciliation breaks, incorrect penalty postings, and failed regulatory submissions.
grace_days = record['e239'] Use:
