Discontinued versions will also stop receiving the latest security patches and updates. Customers who aret using the add-on services can still use QuickBooks Desktop, but they wont have access to technical support or updates. Intuit has made a decision that after July 31, 2024, it will no longer be selling new subscriptions to U.S. subscribers of the following products: QuickBooks Desktop Pro Plus. QuickBooks Desktop Premier Plus. QuickBooks Desktop Mac Plus.
Source: https://lvmpd-portal.dynamics365portals.us/forums/support-forum/7ef2fd97-331f-ef11-989a-001dd80c0dd4