This Changelog post details the updates made to the Newline Platform in July, 2025.

What We Improved

Newline API

• API Performance
  Improved transaction journaling processes for better throughput and reliability.
• Validation Updates
  Relaxed the account_number minimum validation on POST /synthetic_accounts to allow 1-digit values.
• Returns Endpoint Enhancements
  POST /returns and GET /returns/:uid now include "ach" or "wire" objects in the response for improved clarity.

What We Fixed

Newline API

• ACH Effective Entry Date in Sandbox
  Fixed an issue where simulated ACH transactions with future effective entry dates were stuck in pending status (POST /mock_transactions).
• Message Queue Performance
  Applied parallel processing to resolve performance bottlenecks in MQ sending.
• Synthetic Account Archiving
  Fixed a bug affecting external synthetic account archiving logic.

Why It Matters

Newline API

• Enhancements to journaling and MQ performance improve system reliability and responsiveness.
• Relaxed validations and enriched return responses support broader integration use cases.
• Fixes to sandbox and archiving workflows reduce manual intervention and improve developer experience.

We are committed to continuously improving our documentation to help clients create seamless financial experiences. For questions or further details, please contact [Jennifer Morales