# Introducing Checkout Extensibility  — Shopify developer changelog
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## Introducing Checkout Extensibility 

With Checkout Extensibility, you can now build apps to customize checkout and Shop Pay. You can leverage Checkout UI extensions and Shopify Functions to surface new functionality, Checkout Branding API to customize styling, and Pixels to track events. 

Checkout Extensibility is now available in developer preview. 

Learn more about Checkout Extensibility on [Shopify.dev](https://shopify.dev/apps/checkout).

*Published: June 28, 2022*
Tags: Tools, New
Link: https://shopify.dev/changelog/introducing-checkout-extensibility

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