I think I did not get your answer at 100%. The document to follow implies upgrading all the components you have for that solution in their respecitve order. You could have just a Connection Server and some desktops or you could have Workspace ONE Access, UAT, etc.
Give us more insight of your current platform.
I am planning on doing a similar upgrade this week (7.10 -> 7.13) and would be interested in hearing about potential issues with the upgrade from others.
I have 3 Connection Servers, 2 behind a load balancer and 1 standalone, DEM 9.9 and App Volumes 2.18. I plan on doing DEM and AV at a later date.
Some of takeaways I have so far;
Horizon 7 -7.13 Upgrade Guide -> https://docs.vmware.com/en/VMware-Horizon-7/7.13/horizon-upgrades/GUID-E3607442-8936-49A8-97B4-722D0...
I am told that going to 7.13 from 7.10 doesn't work without problems so I am told to go from my 7.4 to 7.10. Where can I download the 7.10 software? I cannot seem to find a link for this.
We are on version 7.12 right now and the HTML5 interface is quite slow at times especially in a desktop pool when the Machines list with View Composer info is active. Just entering search details bogs the page down (where other tabs in my browser are just fine).
I did the upgrade 2 days back from Horizon 7.12 > 7.13.
Take snapshot of your existing Connection Server
its straight forward process, go to the settings > server > Connection server and disable the one which you are going to upgrade.
Complete the process one by one each and enable the one upgraded, along with that it will upgrade the HTML access also.
After upgrade and if you login to Horizon console don't panic it will take some time to sync your Pools and names.