Changelog

Cornerstone 6.19.1

Cornerstone 6.19.1 improves multi-language storefront support, refines cart and backorder messaging, and delivers bug fixes across core shopping flows.

Cart and checkout improvements

• Shipping expectation messaging for backordered items — Adds shipping expectation messaging on the cart page for backordered items, improving clarity on delivery timelines
• Relocated shipping expectation messaging — Moves shipping expectation messaging to the cart totals section to reduce repetition and improve UX
• Multi-language cart preview — Enables cart preview functionality to properly support multi-language storefronts

Product page enhancements

• Backorder messaging on PDP — Adds backorder messaging on Product Detail Pages (PDP) to communicate availability and expected shipping times

Localization and multi-language enhancements

• Multi-language subfolder API requests — Improves multi-language subfolder support by ensuring all storefront API requests include the correct base URL
• Cart operation URLs — Fixes incorrect request URLs for cart operations in multi-language storefronts
• Country and state retrieval — Resolves incorrect request handling for country/state retrieval in localized environments

Header and UI

• Desktop header selector layout — Fixes layout issues in desktop header selectors (Language, Currency, Channel) to ensure proper alignment and prevent wrapping

Dependencies

• Updated stencil-utils to version 6.21.0
• Updated stencil-utils to version 6.22.0
• Updated stencil-utils to version 6.23.0

Welcome to the New BigCommerce Developer Docs

We’ve rebuilt the BigCommerce Developer Center from the ground up to help you find answers faster and build integrations more efficiently.

What’s new

• Ask AI — An AI-powered assistant is now available directly in the header. Ask questions about BigCommerce APIs, integrations, or storefronts and get answers with links to the relevant documentation.
• Full-text search — Search across all documentation, API references, and learning content with faster, more accurate results.
• Streamlined navigation — A five-tab layout (Docs, API Reference, Learn, Community, Changelog) gives you quick access to every resource from the header.
• API status badges — Color-coded Experimental, Alpha, and Beta badges on API endpoints make it easy to see availability at a glance.

Bookmarks and links

Some URLs have changed as part of the site restructure. If a bookmarked link no longer works, use Ask AI or Search in the header to find what you need.

Share your feedback

We’ve added improved page-level and code block-level feedback tools that we’ll be actively monitoring, so don’t hesitate to let us know how things look. Your feedback helps us make these docs better.

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.