There are 4 issues with Vivado 2020.1 that may affect your designs. A tactical patch has been created to avoid these issues.
More details here: https://www.xilinx.com/support/answers/75369.html
When you copy the files across, your path should look like this:
Vivado\2020.1\patches\AR75369_vivado_2020_1_preliminary_rev1\vivado\patch_readme
If you’ve installed it correctly, you should see this when you launch it from the command line:
Vivado v2020.1_AR75369 (64-bit)
**** SW Build 2902540 on Wed May 27 19:54:49 MDT 2020
**** IP Build 2902112 on Wed May 27 22:43:36 MDT 2020
** Copyright 1986-2020 Xilinx, Inc. All Rights Reserved