---
title: Theme app extension requirement - all new apps - 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/theme-app-extension-requirement-all-new-apps
  md: https://shopify.dev/changelog/theme-app-extension-requirement-all-new-apps.md
---

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

September 7, 2021

Tags:

* Shopify App Store

# Theme app extension requirement - all new apps

Starting Tuesday September 7, 2021, if you're submitting an app that integrates with a theme to the Shopify App Store, then you need to use [theme app extensions](https://shopify.dev/apps/online-store/theme-app-extensions).

Existing apps are strongly encouraged to adopt this feature as well. However, there is currently no deadline for existing apps in the Shopify App Store to adopt theme app extensions.