* Add - New filters woocommerce_shipping_australia_post_skip_item_box_packing and woocommerce_shipping_australia_post_package_requests to let developers customise box packing and package requests.
* Fix - Prevent Signature on Delivery surcharge from being incorrectly applied to Australia Post letter service rates.
* Tweak - WooCommerce 10.9 Compatibility.
* Fix - Corrected PAC API endpoint URLs to remove incorrect /api path segment, resolving HTTP 404 errors on all rate requests.