---
title: Upgrading to 2025-10
description: |
  This guide describes how to upgrade your checkout UI extension to API version `2025-10` and adopt [Polaris](/beta/next-gen-dev-platform/polaris) web components.
api_version: 2026-01
api_name: checkout-ui-extensions
source_url:
  html: https://shopify.dev/docs/api/checkout-ui-extensions/latest/upgrading-to-2025-10
  md: https://shopify.dev/docs/api/checkout-ui-extensions/latest/upgrading-to-2025-10.md
---

Upgrading to 2025-10

Not supported in this version.