Yes you can upgrade from v8.7 to v9.2.1.
As you already mentioned, please upgrade your clients (FlexEngine) first. The newest FlexEngine (v9.2.1) can still interpret the INI files from v8.7. After your clients (FlexEngine) have been upgraded, you can upgrade the management console, which allow for new options, like elevated privileges and others, which (when enabled) can now be correctly interpreted by the upgraded clients (FlexEngine). After that update the ADMX files.
Does this answer your question?
Sure does. Thanks a lot, Ivan!
If I upgrade UEM agent [flexengine] do I have to follow this article "Installation order of End User Computing Agents for User Environment Manager (UEM) and App Volumes (2118048) | VMware KB " [I mean do I need to reinstall all the agents like VMware tools, view and appvol agents?]
Hi Skmr ,
I think the intention of that KB article is to just keep things simple, and have a well-defined installation order documented. When it comes to upgrading UEM, there isn't actually any need to reinstall any of the other agents – our upgrade does not affect the other agents.