ArcGIS Server 10.9.1 Setup Program Patch

Question

Hello - does anyone have any insight with the ArcGIS Server 10.9.1 Setup Program Patch released today 12/09/2021

https://support.esri.com/en/download/7956

Seems a bit of a catch-22, in that you must have 10.9.1 installed before applying the patch.  Yet the patch seems to address an install issue with 10.9.1 itself . . .

DavidColey · Answer

I've always applied the patches as my final and last step, after everything has been installed, and all my machines are their dns names without ssl errors

StaceMaples · Answer

My question is WHEN should you apply the patch in an upgrade? Immediately after install, but before any other setup procedures and installs (web adapter, data store, etc...)? After everything? The docs aren't clear on anything, not installation, or issues addressed.  I've been going back and forth with Esri Support all day on this and noone seems to have an answer.

DavidColey · Answer

I would say that @Oiligriv post clears things up, in that the instructions read you can't install the rename patch until you install the setup patch.