Changelog

July 23, 2026

Cornerstone 6.21.0

Cornerstone 6.21.0 introduces featured promotion callouts across product listing pages and the product page, expands and refines backorder messaging on the product page and account order pages, and includes a cart layout fix.

  • Featured promotion callouts — Displays featured promotion callouts on product listing pages (product cards and list view) and the product page, controlled by the new show_featured_promotions theme setting and populated from the featured_promotions context

Backorder messaging

  • Backorder prompts on order details — Shows backorder prompts on the account order details page for both the parent product (under the product title) and each picklist option, mirroring the PDP backorder display
  • Default backorder message fallback — Falls back to the store’s default backorder message on the PDP when a product has no explicit message assignment or references a deleted message
  • Independent backorder message setting — Decouples “Show backorder message” from “Qty on Backorder” so each setting works independently on the PDP

Cart improvements

  • Shipping expectation message alignment — Fixes the alignment of the shipping expectation message on the cart page
July 23, 2026

GraphQL Schema Updates

Company registration file uploads in the Storefront GraphQL API can now carry richer file metadata.

Storefront GraphQL

  • Company file metadata: the AddCompanyFileInput input object, used by RegisterCompanyInput.fileList, gains four optional fields alongside the existing fileId:
    • fileUrl (String): the URL of the uploaded file.
    • fileName (String): the name of the uploaded file.
    • contentType (String): the MIME content type of the uploaded file.
    • fileSize (Long): the size of the uploaded file, in bytes.

For schema details, browse the Storefront GraphQL API reference.

July 23, 2026

Availability badges in the sidebar

The sidebar navigation now shows availability badges, making it easier to spot the status of a page before you open it.

  • Beta and deprecated indicators — pages marked beta or deprecated now surface that status directly in the sidebar.
  • Faster scanning — identify pre-release and legacy content at a glance while browsing the navigation.