Here is a link the page where I received the R6P update. This is for US based Quickbooks Desktop Enterprise version 21

https://downloads.quickbooks.com/app/qbdt/products?productName=QuickBooks%20Desktop%20Enterprise&edi...

Then if you click "Get the latest update" it will download the web patch I used. 

It did require a restart for us to complete the install, but memorized reports worked after rebuilding companies in this update.