Magento 2.4.5 Released – Highlights & Updates

Magento 2.4.5 Installation, upgrade, deployment :

• You can now rename a data patch and add the old class name as an alias in the patch_list database table. Now checks whether data patch aliases already existed in the database before applying the patch. Previously, Magento Open Source threw an error under these conditions.
• Magento Open Source no longer throws an exception when you try to change the Admin URL to a custom URL from the Admin. Previously, after changing the Admin URL, you could not log in.
• Merchants can now successfully upgrade from a Magento 2.4.2 deployment with Klarna to Magento 2.4.3.
• The path to Magento Analytics is no longer hard-coded. Previously, this hard-coded path resulted in conflicts when multiple Magento instances were installed on one server. 

Magento 2.4.5 Cart and checkout :

• The address search pop-up on the billing step of the checkout workflow no longer causes DOM errors.
• The add Products To Cart mutation now works correctly with multiple products. Previously, this query returned the first product with an accurate subtotal but returned a subtotal of 0 for other products.
• Permission exceptions are now handled for restricted products that are added by SKU. Shoppers are now given an appropriate message on the storefront, and the quantity field in the error table is disabled. Previously, Magento Open Source threw an exception like this: There has been an error processing your request.
• The SQL query that updates affected quotes after disabling a cart price rule has been optimized to avoid locking the entire quote table.
• Shoppers with global account sharing are no longer required to log in again to a secondary website in a multi-site deployment when guest checkout is disabled. Customer data is now loaded when the shopper navigates to the subdomain. The shopper is no longer asked to log in again, and the previous cart contents are displayed.
• Address dropdown values in the checkout workflow no longer change for the remaining items in a quote when a single quantity address item is removed in a multi-address checkout. Previously, when a product was removed from a quote during multi-address checkout, the address dropdown value changed to default for all products.
• The cart query no longer returns null responses when a product is out of stock. A new error element containing the error message was introduced to the response. Previously, when you ran a query with an out-of-stock product, Magento Open Source displayed a null value under the items section in the response. See cart query.
• Shipping methods are now available as expected when a guest shopper creates an account after adding a product to their cart before proceeding to checkout. Previously, when a guest added a product to the cart before creating an account, no shipping methods were available during checkout. After adding other products to the cart, shipping methods became available.
• Shoppers can add products to their carts when no options in the Allow Countries field have been selected.
• Cart contents and login status are now reloaded as expected after a session times out when Enable Persistence is set to Yes.
• Mini cart subtotals are now updated correctly when a shopper navigates from the shipping page to the cart page in the checkout workflow for an order with multiple shipping addresses. Previously, the subtotal was doubled.
• The mini cart now displays previously added products after a session timeout when Enable Persistence is enabled 
• Merchants can now create a credit memo in which Refund Shipping (Incl. Tax) is set to -0.01 and can now put this amount to 0. Previously, the credit memo could not be created under these conditions.