Checkout upgrade for Plus shops using checkout.liquid
The next checkout upgrade will take place between January 25, 2021 to February 26, 2021.
On the Shopify Plus plan, you get exclusive access to the checkout.liquid file, enabling you to make flexible customizations to Shopify Checkout. However, you need to upgrade Shopify Checkout periodically in order to unlock new features while ensuring your checkout.liquid customizations remain in-tact.
Only shops with checkout.liquid enabled need to perform the upgrade.
Learn more about the checkout upgrade process and view a full list of the new Shopify Checkout features in the Shopify Help Center.