---
title: Checkout UI Extensions - New APIs for Summer Editions - Shopify developer changelog
description: Shopify’s developer changelog documents all changes to Shopify’s platform. Find the latest news and learn about new platform opportunities.
source_url:
  html: https://shopify.dev/changelog/checkout-ui-extensions-new-apis-for-summer-editions
  md: https://shopify.dev/changelog/checkout-ui-extensions-new-apis-for-summer-editions.md
---

[Back to Developer changelog](https://shopify.dev/changelog)

July 26, 2023

Tags:

* API

# Checkout UI Extensions - New APIs for Summer Editions

* [Shipping address write API](https://shopify.dev/docs/api/checkout-ui-extensions/unstable/apis/checkoutapi#properties-propertydetail-applyshippingaddresschange) - Extensions can use the applyShippingAddressChange API to modify address values on behalf of a buyer.
* [B2B context APIs](https://shopify.dev/docs/api/checkout-ui-extensions/unstable/apis/standardapi#properties-propertydetail-buyeridentity) - Extensions can now read details about a purchasingCompany as well as [checkout settings](https://shopify.dev/docs/api/checkout-ui-extensions/unstable/apis/standardapi#properties-propertydetail-checkoutsettings) that apply to the current buyer
* [Support for new metafield types](https://shopify.dev/docs/api/checkout-ui-extensions/unstable/apis/standardapi#properties-propertydetail-appmetafields) - Extensions can now read metafields on carts, companies, or companyLocations. They can also [write to cart metafields](https://shopify.dev/docs/api/checkout-ui-extensions/unstable/apis/checkoutapi#properties-propertydetail-applymetafieldchange)