---
title: >-
  Online Store 2.0: Extend apps into the Online Store with theme app extensions
  - 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/online-store-2-0-extend-apps-into-the-online-store-with-theme-app-extensions
  md: >-
    https://shopify.dev/changelog/online-store-2-0-extend-apps-into-the-online-store-with-theme-app-extensions.md
metadata:
  effectiveApiVersion: ''
  affectedApi: []
  primaryTag:
    displayName: Shopify App Store
    handle: shopify_app_store
  secondaryTag:
    displayName: New
    handle: new
  indicatesActionRequired: true
  createdAt: '2021-06-25T16:54:24-04:00'
  postedAt: '2021-06-29T00:00:00-04:00'
  updatedAt: '2024-02-02T10:57:37-05:00'
  effectiveAt: '2021-06-29T00:00:00-04:00'
---

June 29, 2021

Tags:

* Action Required
* Shopify App Store

# Online Store 2.0: Extend apps into the Online Store with theme app extensions

App developers can now integrate their apps into the Online store with theme app extensions. A theme app extension is a bundle of app block definitions and supporting files. App blocks can be added, removed, and configured directly from the theme editor without having to touch a theme’s code. This means uninstalls are also cleaner, with ghost code automatically removed.

[Learn more about theme app extensions](https://shopify.dev/apps/online-store/theme-app-extensions).