If you have received an email from Shopify about the Breww app and API versions, that looks like the following, this post will explain what you need to do.
The message from Shopify
Please note that the dates and version numbers in the message from Shopify will change over time, but this guide applies to all dates and version numbers.
Hello there,
We’re sending you this email because one or more apps installed on your Shopify store are making calls to APIs that will be removed soon and will soon be unsupported. These apps must be updated by a developer before [date] to continue working normally.
We encourage you to forward this email to the partner or developer who maintains your apps, and have them update your apps based on the information below. If you don’t currently have a developer maintaining your apps, you can hire a Shopify expert.
What your developer needs to know
One or more of your custom or private apps have made deprecated API calls in the last 30 days. Support for these versions will be removed on [date]. Please update the apps listed below to API version [version-number] or later to ensure they continue to function correctly.
Store: [Your shop name]
App: Breww
Breaking changes:
[Some bullet points]
[Some bullet points]
What you need to do
Most of the changes required will be handled for you by the Breww team and will be in place, before the deadline, but you will need to make one small change.
You will need to log in to your Shopify account and go to Settings (at the bottom of the sidebar on the left) → Apps and sales channels → Develop apps → Breww.
Click the Configuration tab.
Click the Edit button in the Admin API integration section.
Scroll down to Webhook subscriptions section and find the select box named Event version.
From the selection box, please choose the version that has the word Latest in brackets after it. Breww will always support the latest version. Where possible, we aim to keep support for older versions too, but the latest version is the most reliable choice. It will look a bit like the following screenshot, but the actual version number (which looks like a date) will vary.
Thanks for sharing this, Ben Our Shopify account is specifically for developing apps, so it might be showing a little differently to us compared to how it shows to you. I’ve updated the above to hopefully make this clearer for others
Sorry guys but I’m being thick. We don’t have a menu called apps and sales channels unless there is another settings page I don’t know about. There is one called connected apps but all that lets me do is disconnect Breww. Any help greatly appreciated
Thanks
John
When on the home page of your admin (https://store_name.myshopify.com/admin), are you clicking the Settings button in the bottom left corner of the page? From there, there should be a button for ‘Apps and sales channels’.
Any update on what to do with the latest similar email from Shopify? Copied below.
Cheers!
"Hello there,
We’re sending you this email because one or more apps installed on your Shopify store are making calls to APIs that will be removed soon and will soon be unsupported. These apps must be updated by a developer before April 1, 2024 to continue working normally.
We encourage you to forward this email to the partner or developer who maintains your apps, and have them update your apps based on the information below. If you don’t currently have a developer maintaining your apps, you can hire a Shopify expert.
What your developer needs to know
One or more of your custom apps have made deprecated API calls in the last 30 days. Support for these versions will be removed on April 1, 2024. Please update the apps listed below to API version 2023-07 or later to ensure they continue to function correctly.
Store: Attic Brew Co.
App: Breww
Breaking changes:
The gateway, payment_details, and processing_method fields on the Order resource have been removed. The orders/transactions.json REST endpoint, and the transactions GraphQL connection provide correct information per transaction set. View change.
The delivery_category field has been removed from the ShippingLine REST Admin API. View change.
To learn more about unsupported apps, read our Unsupported Apps guide. If you still have questions, chat with us in the API forums or contact us via Support.
Absolutely, the process is exactly the same as above! Whenever you receive an email from Shopify with the request “Please update the apps listed below to API version …” in reference to Breww, you will just need to follow the steps above to update to the (Latest) version, and we will do the rest!
Our Shopify account is specifically for developing apps, so it might be showing a little differently to us compared to how it shows to you. I’ve updated the above to hopefully make this clearer for others 
