Automatic updates

Is there any way to set up Plex to automatically download and install all updates?

No, there is not.
On Windows though it should be as easy as pressing a button in the web app. (unless you are running it as a system service.)

Thanks. I don’t want to download all updates period, just those from Plex.

@wbsherm said:
Thanks. I don’t want to download all updates period, just those from Plex.

That’s what I meant. You can update Plex server with the press of a button.