Release Notes
07/23/2025
USPS APIs Release Notes

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

Release Notes
07/22/2025
July 30 2025 Release Notes
Release Notes
07/18/2025
July 27 2025 Release Notes
Release Notes
07/13/2025
July 13 2025 Release Notes
Release Notes
07/02/2025
Catalog Insights Promotion Webinar - Slides

See the slideshow below from the Catalog Insights Promotion webinar. Note that minor updates have been made to the slides, including updating language surrounding Bound Printed Matter and an additional slide on how to qualify for the Promotion. 

Release Notes
06/30/2025
PFSC Application Release Notes 6-30-2025

Release notes for PFSC application release on 6-30-2025

Release Notes
06/30/2025
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
06/29/2025
July 2025 Release Notes
Release Notes
06/18/2025
Priority Mail Next Day/Post Host Release Overview
Release Notes
06/10/2025
May 2025 Release Overview

Release Overview May 2025