The Checkout interface extends ArrayAccess and Shippable

Changelog.md

@@ -60,6 +60,7 @@
 - Added the `Address` DTO class (implements the `Address` interface)
 - Added the `AdjusterAliases` class that for decoupling FQCNs from the database
 - Added automatic mapping of adjuster FQCN <-> aliases when saving an adjustment into the DB and when calling the `getAdjuster()` method
+- BC: The `Checkout` interface now extends the `ArrayAccess` and the `Shippable` interfaces (until here, only the concrete classes have implementation it)
 - BC: Added cart and order item models to the Relation morph map: the `adjustable_type` field in the `adjustments` table needs to be converted!
 - BC: Added the `?CheckoutSubject` return type to the `getCart()` method of the `Checkout` interface
 - BC: Changed `Checkout::getShippingAddress()` return type to be nullable

src/Checkout/Changelog.md

@@ -13,6 +13,7 @@
 - Changed minimum Laravel version to v10.38.2
 - Changed minimal Enum requirement to v4.2
 - Added the `BillpayerChanged` event
+- BC: The `Checkout` interface now extends the `ArrayAccess` and the `Shippable` interfaces (until here, only the concrete classes have implementation it) 
 - BC: Added the `?CheckoutSubject` return type to the `getCart()` method of the `Checkout` interface
 - BC: The unused `$config` parameter has been removed from the `RequestStore` checkout driver constructor
 - BC: Changed `Checkout::getShippingAddress()` return type to be nullable

src/Checkout/CheckoutManager.php

@@ -23,11 +23,8 @@
 use Vanilo\Contracts\CheckoutSubject;
 use Vanilo\Contracts\DetailedAmount;
 use Vanilo\Contracts\Dimension;
-use Vanilo\Contracts\Shippable;
 
-/** @todo Remove `ArrayAccess` and make the Checkout interface to extend ArrayAccess in v4 */
-/** @todo Remove `Shippable` and make the Checkout interface to extend Shippable in v4 */
-class CheckoutManager implements CheckoutContract, Shippable, \ArrayAccess
+class CheckoutManager implements CheckoutContract
 {
  use ForwardsCalls;
 

src/Checkout/Contracts/Checkout.php

@@ -14,12 +14,14 @@
 
 namespace Vanilo\Checkout\Contracts;
 
+use ArrayAccess;
 use Vanilo\Contracts\Address;
 use Vanilo\Contracts\Billpayer;
 use Vanilo\Contracts\CheckoutSubject;
 use Vanilo\Contracts\DetailedAmount;
+use Vanilo\Contracts\Shippable;
 
-interface Checkout
+interface Checkout extends Shippable, ArrayAccess
 {
  public function getCart(): ?CheckoutSubject;