Changelog

Cornerstone 6.20.0

Cornerstone 6.20.0 expands backorder and stock-availability messaging across the product page, cart, and account order pages, adds support for bundled (picklist) item inventory, refines the cart shipping layout, and delivers accessibility and bug fixes.

• Respect available_to_sell — Hides the Sold Out alert and keeps Add to Cart enabled for backorderable products, and disables Add to Cart with a “maximum purchasable quantity” message when the requested quantity exceeds available_to_sell (for both simple products and variants)
• Support unlimited_backorder — Renders the backorder quantity message and availability prompt, and lifts the Add to Cart quantity cap, for products with unlimited backorder
• Backorder quantity message when clamped — Shows the “N will be backordered” message when the requested quantity exceeds available_to_sell (still clamped by available_for_backorder), so shoppers see why the quantity was clamped alongside the “maximum purchasable quantity” message
• Backorder prompts for picklist products — Renders backorder prompts for picklist (bundled) products on the PDP
• Picklist stock validation — Validates each selected picklist item’s available_to_sell so Add to Cart is disabled and a “maximum purchasable quantity for {item} is {qty}” message is shown when the requested quantity exceeds that item’s stock, even when the main product still has enough stock

Product options

• Disable-and-hide option values — Hides option values on the PDP that would complete a “disable and hide” rule for the current selection, and steers the shopper off a default selection that is itself a forbidden combination

Cart improvements

• Shipping expectation prompt layout — Displays the cart shipping expectation prompt on its own full-width row beneath the Shipping label, keeping the shipping cost on the same row as the label
• Bundled item stock on the cart — Shows stock positions (on-hand, backordered quantity, and backorder message) for bundled items (pick lists) on the cart page, left-aligned with the quantity adjuster, rendering the section only when there is stock information to display

Account order pages

• Backorder prompts on order pages — Shows backorder prompts (on-hand, backordered quantity, and backorder message) above the options list on the account order pages, and adds a shipping expectation message for backordered orders
• Backorder prompts for bundled picklist options — Shows backorder prompts for each bundled picklist option on the order details page, using linked_bundled_item data
• Multi-address “Ship to” copy — Updates the multi-address order copy to read “Ship to {address}“

Accessibility

• Improved color contrast — Darkens the low-contrast gray used for buttons, input and checkbox borders, rating stars, and carousel controls to meet accessibility contrast requirements
• Larger footer tap targets — Increases the clickable/tap area of footer links for easier interaction
• Category filter reset announcements — Fixes the reset-filters live region on the category page so screen readers announce when filters are cleared

Bug fixes

• Duplicate payment method ID — Fixes a duplicate id="default_instrument" on the Update Payment Method page
• onProductOptionsChanged event detail — Swaps the content and data keys in the onProductOptionsChanged event detail so each carries the correct payload