The latest version is WooCommerce USPS Shipping 5.5.5, Released on May 11, 2026
Here’s what’s changed in WooCommerce USPS Shipping Version 5.5.5
* Add - Debug logging at silent exit points in rate calculation.
* Fix - Don't cache transient USPS API errors (429, 5xx) in rate response transients.
* Tweak - Promote genuine API failures from debug to error log level for visibility.
* Tweak - Update Jetpack Autoloader to v5.
View the full WooCommerce USPS Shipping Changelog
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