---
title: Checkout UI Extensions - API Versioning - 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-api-versioning'
  md: 'https://shopify.dev/changelog/checkout-ui-extensions-api-versioning.md'
metadata:
  effectiveApiVersion: ''
  affectedApi: []
  primaryTag:
    displayName: API
    handle: api
  secondaryTag:
    displayName: Update
    handle: update
  indicatesActionRequired: false
  createdAt: '2023-07-25T12:03:48-04:00'
  postedAt: '2023-07-27T00:00:00-04:00'
  updatedAt: '2024-02-02T10:05:15-05:00'
  effectiveAt: '2023-07-27T00:00:00-04:00'
---

July 27, 2023

Tags:

* API

# Checkout UI Extensions - API Versioning

We have released API versioning for checkout UI extensions. As part of this release, we are also moving checkout UI extensions over to the new ui extension packages.

* For information on how to adopt API versions for existing extensions, \[visit our versioning page] (<https://shopify.dev/docs/api/checkout-ui-extensions/unstable/versioning-migration>)
* For more details on the what and why, see [our post on github](https://github.com/Shopify/ui-extensions/discussions/1161)