It's my pleasure to handle your concern for today, DRR4.
QuickBooks Desktop (QBDT) releases a new version every year and only supports the software for up to 3 years. If you're using QuickBooks for basic accounting and record-keeping purposes, then you can continue to use any old version of QuickBooks Desktop 2019. However, any online services like online banking and payroll features are no longer supported.
Please check this article to learn more about the discontinuation policy of QuickBooks Desktop: QuickBooks Desktop service discontinuation policy and upgrade information.
If you wish to continue using the online services mentioned, I recommend upgrading the software to a supported version. Once you have the latest version, it would be best to know What’s new in QuickBooks Desktop 2021.
Additionally, here's a link that will help you learn more about how the product works: Help articles for QuickBooks Desktop.
Keep in touch if you need any more assistance managing your QuickBooks Desktop account. I've got your back. Have a great day ahead!l
