Release Notes
09/25/2026
September 24, 2026 COP Release 2.5.6
Release Notes
09/24/2026
October 4 2026 - PO! and ProgReg - Release Notes
Release Notes
09/20/2026
September 20 2026 Time Limited Price Change (TLPC) 2026 [October] Release Notes
Release Notes
09/17/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes

These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.

Release Notes
09/16/2026
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.