# Revised the App Design Guidelines (Summer 2024) — Shopify developer changelog
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## Revised the App Design Guidelines (Summer 2024)

We've introduced the following changes to improve and update the [App Design Guidelines](https://shopify.dev/docs/apps/design):

* [FullscreenBar usage](https://shopify.dev/docs/apps/design/app-structure#adg_no_fullscreen_bar) within a max modal is now a "Do Not". The FullscreenBar section of the App Design Guidelines has been removed as it is no longer supported.
* [Proper grammar](https://shopify.dev/docs/apps/design/content#adg_proper_grammar) is now included as a "Must Do".
* Using the App Bridge [Contextual Save Bar API](https://shopify.dev/docs/apps/design/user-experience/forms#adg_contextual_save_bar) (where applicable) is now a "Must Do".
* Added a new section to the App Design Guidelines that includes specific [requirements for subscription apps](https://shopify.dev/docs/apps/design/user-experience/subscription-apps).

*Published: June 21, 2024*
Tags: Shopify App Store, Update
Link: https://shopify.dev/changelog/revised-the-app-design-guidelines-summer-2024

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