2026-06-22 – version 5.5.8
* Fix – First Class Mail rates incorrectly returned for carts that aren’t fully covered by the First Class quote (any packing method).
* Fix – Box packing no longer adds the discarded First Class fallback surcharge to the other shipping rates when the First Class quote can’t cover the full cart.
* Tweak – WooCommerce 10.9 Compatibility.
2026-06-15 – version 5.5.7
* Fix – Declared value set on a parent variable product now applies to all variations that don’t have their own value set.
* Fix – REST API order metadata (rate description and mail class) saved from the wrong USPS service — now scoped to the selected rate.
* Fix – REST API multi-package rates now record each package’s rate description and mail class under an index-suffixed key instead of the last package overwriting the rest.