Does I have to upgrade my old version of QuickBooks Desktop?

Thanks for dropping back here, @Rapid Resolved. I'll provide some details about the things you need to know in upgrading your QuickBooks Desktop (QBDT).

Before we begin, may I know what specific old version of QBDT you're using? That information is a great help so I can provide a timely solution. 

In the meantime, please refer below for a list of situations when you need to upgrade your program:

• If you encounter a forced upgrade prompt from QuickBooks that happens mostly in three-year windows. For instance, if you have QBDT 2019 version, you’re going to be forced to upgrade to QBDT 2022. Upgrading to the newer version will ensure you'll be supported by Intuit.
• You may also need to upgrade if you're getting a new computer operating system. This will sometimes cause the program to not function smoothly if they don't meet the minimum requirement in running a specific version. 
• If you want to have more licenses for additional users for your company or computers and you’re using an old version then, you may need to upgrade.

Once ready, visit this article for the detailed steps in upgrading your program: Upgrade QuickBooks Desktop Pro Plus, Premier Plus, or Enterprise.

You might also want to check this page for a compilation for reference and guides in performing QuickBooks tasks: QBDT Help article. 

Please let me know if you have any other questions regarding upgrading QuickBooks. I want to make sure you'll be able to get this resolved as soon as possible. Have a good day and take care.