02/11/2025
02/02/2025
01/17/2025
01/05/2025
12/12/2024
12/09/2024
11/18/2024
10/28/2024
October 27, 2024 Releases
Mail Dat Client update is mandatory for this Release
10/15/2024
10/15/2024
09/30/2024
09/10/2024
October 2024 Planned Changes
Mail.dat Client update is required.
06/30/2024
05/31/2024
05/22/2024
01/21/2024
01/18/2024
01/07/2024
January 2024 Price Change Release Notes
Please note “Mail Dat Client update required” for this release.
01/05/2024
12/04/2023
January 2024 Price Change Release Overview
Mail Dat Client update is mandatory for this Release.
10/18/2023
09/26/2023
09/11/2023
07/09/2023
06/25/2023
July 2023 Price Change Release Notes
Mail Dat Client update is mandatory for this Release.
- PostalOne! System Release 58.0.0.0
- Program Registration Release 25.0.0.0
- Release 30.3.0.0 USPS Ship Release 9.0.0.0 (Scheduled Deployment June 21, 2023)
06/06/2023
05/19/2023
July 2023 Price Change Release Overview
Mail Dat Client update is mandatory for this Release.
04/30/2023
04/26/2023
03/29/2023
03/26/2023
03/21/2023
Informed Delivery API Release Notes 4.3_3-30-2023
Release notes for the newest update and release of the Informed Delivery API - Release 4.3.
This release uses a new schema version 4.2.0.
03/15/2023
03/12/2023
March 12, 2023 Release Notes
Mail Dat Client update is mandatory for this Release.
02/08/2023
01/29/2023
01/22/2023
01/08/2023
January 08, 2023 Release Notes
Mail Dat Client update is mandatory for this Release.
12/15/2022
11/04/2022
January 2023 Release Overview
Mail Dat Client update is mandatory for this Release.
10/26/2022
September 18, 2022 System Releases
Mail.Dat Client update is mandatory for this Release.
10/02/2022
09/29/2022
09/07/2022
ID API Release Notes v4.1.0_9-1-2022
Release notes for the newest update and release of the Informed Delivery API v.4.1.0.
07/12/2022
07/07/2022
06/26/2022
June 26, 2022 Release Notes
- PostalOne! System Release 55.0.0.0
- Enterprise Payment System (EPS) Release R4.7.0
- Program Registration Release 23.4.0.0
- Package Platform Release 5.0.0.0
New Mail.dat Client is required for June/July 2022 Releases.
06/01/2022
ID API Release Notes v4.0.1 6-1-2022
Release notes for the newest update and release of the Informed Delivery API v.4.0.1.
05/13/2022
05/13/2022