What’s New at Shopify?

Last year, we announced the deprecation of JS Buy SDK and provided two options available to merchants for their ecommerce experience to remain operational.

Recommended option: switch to the Storefront API Client, which manages the API’s authentication information and enables full access to globally-deployed Carts, offering improved performance, scalability, and a richer feature set including subscriptions, product bundles, contextual pricing, Shopify Functions, and more. See this migration guide for more information.

Alternative option: upgrade to JavaScript Buy SDK v3.0, which allows merchants to maintain their current setup with minimal changes for use cases that are supported by the Cart API. If choosing this option, please be aware that this is the last and final release of the JS Buy SDK and we cannot guarantee future Shopify features will be compatible with this option. See this upgrade guide for more information.

Critical Deadline: July 1, 2025 11:00 AM ET. Merchants must implement one of these changes by this date, or customers will not be able to complete purchases.