* Fix – Consistently select the cheapest available satchel rate when "Prioritize satchel rates" is enabled, including satchel sizes returned by the API that were previously ignored.

* Add – New filters woocommerce_shipping_canada_post_skip_item_box_packing and woocommerce_shipping_canada_post_package_requests to let developers customise box packing and package requests.
* Tweak – Update Jetpack Autoloader to v5.

* Add – New filters woocommerce_shipping_royalmail_skip_item_box_packing and woocommerce_shipping_royalmail_packages to let developers customise box packing and packages.

* Fix – "Apply suggested address" button on block checkout now works when the checkout is rendered via a theme template (FSE), instead of failing silently.
* Tweak – Update Jetpack Autoloader to v5.

* Add – Optional shipping insurance and signature confirmation, offered to customers as selectable rates at checkout and priced by USPS.
* Add – New filters woocommerce_shipping_usps_skip_item_box_packing and woocommerce_shipping_usps_package_requests to let developers customise box packing and package requests.
* Fix – Service commitment delivery time shown in USPS rate labels is now scoped to the selected rate, fixing inconsistent visibility when a per-rate woocommerce_shipping_usps_should_show_service_commitment filter is used.
* Fix – Round lbs-to-oz weight conversion in letter-rates requests to prevent USPS error 030004 on integer-oz boundary weights.