Changelog

Payment Method Translations (Beta)

You can now translate payment method display names and payment instructions using the GraphQL Translation Management API:

• Translatable fields: display_name and payment_instruction
• Translations appear on checkout, order confirmation, order emails, and My Account pages
• Resource ID format: bc/store/paymentMethod/{payment_method_id}.{currency}

See the Payment Method Translations documentation for query and mutation examples.

Infrastructure Hosting API (Alpha)

A new REST API for managing BigCommerce-hosted Catalyst deployments is now available in alpha:

• Projects — create, list, and delete infrastructure hosting projects
• Deployments — upload build artifacts, trigger deployments, and monitor progress via server-sent events
• Logs — tail real-time worker logs with request info, log levels, and exceptions

See the Infrastructure Hosting API reference and the Native Hosting overview for getting started.

B2B Core Updates

• The dedicated Buyer Portal module and any redundant Buyer Portal material was removed, due to the introduction of a separate B2B Buyer Portal course.

Storefront GraphQL Authentication Updates

We’re updating Storefront GraphQL authentication to better align token types with how they’re used in modern headless/server-rendered storefronts.

If you use Storefront tokens for server-side Storefront GraphQL calls (SSR, middleware, proxies, or any backend service), you need to migrate to private tokens.

• Storefront tokens created after June 30, 2026 will not support server-to-server requests
• Storefront tokens created on or before June 30, 2026 will continue supporting server-to-server requests until March 31, 2027
• Storefront tokens used for browser-based storefronts with allowed_cors_origins are unaffected

You can check out more in the relevant documentation here.

Cornerstone 6.19.0 is live

The Cornerstone 6.19.0 release introduces improvements to cart messaging and shipping price display, enhances localization support, and includes multiple bug fixes to improve storefront stability and user experience.

This release also includes the new feature - Language Selector component, which is fully implemented and will be enabled soon as part of the multi-language rollout.

Major Updates

Cart & Checkout Improvements

• Added messaging on the cart page to clearly indicate when the maximum discount limit has been reached

• Introduced strikethrough styling for discounted shipping methods to improve visibility of savings

Localization & Language Enhancements

• Improved Language Selector to use real storefront data instead of static configuration

• Language names are now displayed in their native format (e.g., “English”, “Français”)

• Added backend-based translations for account edit form fields to improve localization coverage

Bug Fixes & Improvements

Cart & Product Page

• Fixed an issue where Add to Cart and quantity controls could be disabled when product data was not fully loaded

• Resolved duplicate “Out of Stock” messages overlapping Add to Cart button on product pages

Stability & Error Handling

• Improved initialization logic to prevent errors during storefront load

• Fixed edge cases where missing data could cause crashes in cart edit modal

• Added safeguards to prevent secondary errors masking the original issue

Media & Browser Compatibility

• Fixed YouTube video playback issues in Safari by ensuring proper request parameters are applied

B2B Edition Webhooks — Phase 2

New webhook events are now available for B2B Edition:

Quotes

• store/quote/created — fires when a new quote is created
• store/quote/updated — fires when a quote is updated
• store/quote/statusUpdated — fires when a quote’s status changes
• store/quote/deleted — fires when a quote is deleted

Super Admin Assignments

• store/company/superadmin/assignmentUpdated — fires when a Super Admin is assigned to or unassigned from a Company
• store/superadmin/assignmentUpdated — fires when a Super Admin’s Company assignments are updated

See the B2B Edition webhook events documentation for details and example payloads.

Catalyst 1.6.0

Catalyst v1.6.0 adds reCAPTCHA v2 support to storefront forms:

• Registration, contact us, and product review forms now render a reCAPTCHA widget when enabled in the BigCommerce admin
• Server-side validation in form actions — no manual client-side token extraction required
• New recaptchaRequired translation strings for localization

See the full 1.6.0 release notes for migration steps.

B2B Buyer Portal Updates

• Brand new developer course covering the B2B Buyer Portal.
• Learn the major pillars of the Buyer Portal architecture.
• Explore multiple approaches for development, including interacting with the Buyer Portal JavaScript API as well as forking and customizing the portal.
• Hands-on lab exercises.

Catalyst 1.5.0

Catalyst v1.5.0 is now available with the following highlights:

• Next.js 16 — upgraded from Next.js 15, including cache API migration, TypeScript config updates, and middleware-to-proxy migration
• Node.js 24 — Catalyst now requires Node.js 24 or later
• Product gallery pagination — paginated image loading for products with many images
• Uncached product inventory — real-time stock levels via a separate uncached GraphQL query
• Canonical URLs and hreflang — proper SEO metadata with locale-aware alternates
• Cart inventory messaging — out-of-stock, ready-to-ship, and backordered quantities on cart line items
• DOMPurify migration — replaced isomorphic-dompurify with client-only dompurify

See the full 1.5.0 release notes for migration steps.

Catalyst Core Updates

• Updated the Internationalization Module to include information about the newly released Translation Management GraphQL API.
• Updated links throughout the course to correctly reflect changes to Localization and Internationalization.