Welcome to the Community, @JohnFlahive.

Allow me to share additional information about the discontinuation of the QuickBooks Desktop(QBDT) UK version.

With the discontinuation in 2023, you can still use the app if you have purchased a not subscription-based.

However, there will be no more updates, and you will have to troubleshoot all the issues manually.

You can refer to this link for more information about the discontinuation of the QBDT UK version: QuickBooks Desktop is being discontinued.

If you consider going with QuickBooks Online, you can check this article to help you decide: Is QuickBooks Online right for me and my business?.

Let me know how this goes by replying to this thread or don't hesitate to post again. We're always here in the Intuit Community to help.