PitneyShip® Pro Software Update Hub

We’ve curated the key updates from our latest release for you below. For more details and to explore additional changes, view the full release notes.

Release Date - January 7, 2026

What’s New

USPS 6x4 IMb labels for letters

You can now print USPS 6x4 Intelligent Mail® Barcode (IMb) labels for First-Class Mail letters and envelopes. These labels include built-in tracking, making it easier to monitor delivery.
Where to view:
  1. Go to Stamps screen
  2. Select First-Class Mail
  3. Choose 6x4 label under Stamp Options

After a successful label is generated, the confirmation message includes a link to Shipment History for easy access.