* Feature - Introduced new assembled/unassembled UI for Product Bundles under the 'Product Data > Shipping' tab.
* Feature - Added 'Assembled weight' option under 'Product Data > Shipping' when the 'Assembled' Bundle type is active.
* Feature - Support '/subscriptions' REST API endpoint.
* Feature - Introduced 'Bundle-sells discount' option under 'Product Data > Linked Products' to offer discounts with Bundle-sells.
* Feature - Introduced support for WooCommerce Memberships: Bundle discounts are now inherited by individually-priced bundled products. Important: Only '%' discounts are supported!
* Fix - When 'Item Grouping > None' is selected for a composited Bundle, customers can add the Composite to the cart without choosing any bundled items.
* Tweak - Introduce filter-based method for discounting bundled item prices in the cart instead of modifying price props directly.
* Tweak - Show '/pc' suffix when max (not min) quantity > 1.
* Tweak - Added missing actions for before/after quantity input (thank you, bor0!).
* Tweak - Declared support for WooCommerce 3.9+
