UPDATED: USPS July 2026 Rate Hike Release Notes
Issued May 29, 2026: On Sunday, June 28, 2026, the United States Postal Service will implement the following software change(s): PostalOne! System Release 64.0.0.0 Facility [...]
Postalone
Tray Management System For First-Class Mail
Take control of your tray handling with an automated system that makes it easy to process large mailings. The MAPS PostalOne tray management system automatically captures the [...]
UPDATED: PostalOne! January 2025 Release Overview
Document last updated: October 15, 2024 This document includes planned changes under review for the next pricing structure release scheduled for January 2025. The document is [...]
PostalOne! January 2024 Price Change Release Overview
Mail Dat Client update is mandatory for this Release. Sunday, January 7, 2024, the United States Postal Service has scheduled software updates for the following system: [...]
PostalOne!, USPS Ship Updates Sept 18
On Sunday, September 18, 2022, the United States Postal Service will implement the following software changes: • PostalOne! System Release 56.0.0.0 • USPS Ship (Package [...]
January 2022 PostalOne! Changes
From the USPS: This document describes information for changes under review for the next structural implementation in January 2022. This document is prepared and based on the [...]
PostalOne! Changes April 25, 2021; New Mail.Dat Client Required
This document details software updates scheduled for Sunday, April 25, 2021. Impacted Commercial Systems include: — PostalOne! System Release 52.1.0.0 * — [...]
PostalOne! Changes March 15, 2020
On Sunday, March 15, 2020, the United States Postal Service will implement the following software changes: — PostalOne! System Release 50.1.0.0 — Business [...]
PostalOne Software Changes January 12, 2020
On Sunday January 12, 2020, the United States Postal Service will implement the following software changes: — PostalOne!System Release 50.0.0.0 — Enterprise [...]
PostalOne! Software Updates Effective October 20
On Sunday, October 20, 2019, the USPS will implement the following software changes for PostalOne! and Seamless Acceptance and Service Performance … (click to read [...]
August 25 Updates Of PostalOne! and EPS
On Sunday, August 25, 2019 the United States Postal Service will implement the following software changes: — PostalOne!System Release 49.1.0.0 — Enterprise [...]
PostalOne! June Price Change Release Overview
The Postal Service has updated the changes currently under development for the next PostalOne! software release scheduled for June 9, 2019. The Postal Service will change the [...]
New Required Mail.dat Client Version On March 17, 2019
PostalOne! System Release 48.1.0.0 will result in a new required Mail.dat client version. Users should download Mail.dat client version 48.1.0.0_PROD from the Business [...]
PostalOne! “Known Issues” With 2019 Price Change
The USPS released known issues affecting PostalOne! mailers following the January 27 postage rate hike … (click to [...]
January 27, 2019 Software Changes For Rate Hikes
On January 27, 2019 the United States Postal Service will implement the following software changes: · PostalOne! System Release 48.0.1.0 · Enterprise Payment System (EPS) [...]
PostalOne! Update For January 2019 Changes
Included in this document are the changes for the next PostalOne! software release scheduled for January 13, 2019. The following sections outline the changes to Mail.dat, [...]