The Hydrogen developer preview can now be deployed to Vercel in a few clicks. A new Deploy button creates a repo from the Next.js starter template, sets up a Vercel project, and builds it. No local setup required. The template is a working Hydrogen storefront with the typed Storefront API client, cart, and product and collection pages already wired up.
In API version 2026-07 and later, the PaymentMandateResource object includes a new id field. PaymentMandateResource is returned by the mandates connection on CustomerPaymentMethod .
Starting with GraphQL Admin API version 2026-10, creating a carrier service no longer automatically adds it to the shop’s General shipping profile. This breaking change affects carrier services created using: GraphQL Admin API: carrierServiceCreate REST Admin API: POST /admin/api/{version}/carrier_services.json Previously, active API carrier services...
What's changing The cart tools on the Storefront MCP server are being deprecated in favour of the UCP-conforming Cart MCP tools: get_cart and update_cart on https://{shop}.myshopify.com/api/mcp are deprecated.
Starting with GraphQL Admin API version 2026-10 , the deprecated priceRule field on the DraftOrderDiscountNotAppliedWarning object is removed. This is a breaking change for apps that query priceRule on DraftOrderDiscountNotAppliedWarning , which is returned in draft order discount warnings from mutations such as draftOrderCalculate , draftOrderCreate , and...
The ITEM_NOT_STOCKED_AT_LOCATION error will be removed from InventoryAdjustQuantities , InventoryMoveQuantities , InventorySetOnHandQuantities , and InventorySetQuantitiesUserErrorCode as of API version 2026-10. Following the changes described here , inventory quantities can now be adjusted at any location.
You can now use relative paths for endpoint URLs in your Flow action extension configuration . The runtime_url , validation_url , config_page_url , and config_page_preview_url properties accept either an absolute HTTPS URL, such as https://example.com/api/flow/actions/place-bid , or a relative path that starts with a single / , such as...
The next version of Hydrogen moves the commerce logic out of React Router into a framework-agnostic core. You can build storefronts in any JavaScript framework using Shopify's commerce primitives, and it ships with skills that coding agents use to scaffold a storefront for you.
Starting today, metafields stored on the app resource must have a metafield definition and customer accounts permissions to be accessible through the Customer Account API. Going forward, when calling the Customer Accounts API, app metafields without a definition will no longer return a value.
Shop User is Shopify’s cross-merchant buyer identity. Partners who use metafields on Shop Users can now read those metafields during checkout using Shopify Functions. To learn more, see the Shop User metafields guide in the Shopify developer documentation: https://shopify.dev/docs/api/shop/guides/use-cases/metafields
The CartLine type now exposes a viewKey field, so you can correlate a returned cart line with the viewKey you sent to cartLinesUpdate and cartLinesRemove . What's new CartLine.viewKey returns the same viewKey your Liquid storefront renders, alongside the existing UUID id .
The Shopify AI Toolkit now supports upgrading checkout and customer account UI extensions to new API versions, including the migration to Polaris web components. Use the AI Toolkit with your preferred AI coding agent to skip repetitive manual work and speed up the heavy lifting.
We’ve updated our headless checkout authentication docs to refer to the silent single sign-on query parameter as sso=silent instead of logged_in=true . This is a terminology and documentation update only. Existing checkout URLs that use logged_in=true will continue to work.
Inventory transfer webhooks: new origin and destination fields Payloads for the following webhook topics now include the source and destination location of the transfer as Location Global IDs: inventory_transfers/add_items inventory_transfers/update_item_quantities inventory_transfers/remove_items inventory_transfers/ready_to_ship inventory_transfers/cancel...
The end-to-end review management experience previously launched for new app submissions in the Partner Dashboard now also applies to app audits. When a published app undergoes a quality check and requires changes, that feedback appears in the Partner Dashboard under App > Distribution.
App Home UI extensions are available for custom-distribution apps starting in API version 2026-07 . They let you build your app's App Home page as a Shopify-hosted Preact UI extension using the admin.app.home.render target, so lightweight apps can ship a primary admin workspace without hosting a separate web app.
Releasesby Glyph