Release Notes
03/11/2026
USPS APIs Release Notes

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

Announcements
03/10/2026
INFORMATIONAL - Commercial Systems Release March 12, 2026
Tech Guides
03/10/2026
USPS Ship Misshipped Tech Sheet
Announcements
03/09/2026
DELIVERY - DPO Suspensions March 9, 2026
FAQs
03/09/2026
2026 Promotions FAQ