Includes Cart, Checkout and Order Confirmation blocks as the default checkout flow for new installations WooCommerce 8.3 can be considered as an important milestone in moving towards a block-first payment experience.
Existing stores, not affected by cart and payment blocks becoming the default vendors WooCommerce > Status > Tools > Create Page can easily choose this experience using the WooCommerce migration tool available in the WooCommerce migration section. This tool will automatically generate new pages with the block-based checkout flow. The Blocked Order Confirmation template is currently only available for stores using block themes.