I know that the current update process allows us to have multiple versions of the IDE, but imo this is bad design.
It is not convenient at all having to go to the website > downloading > installing > (optionally) removing previous version. It's way too much of a hassle, especially since your update cycle is quite short (which is a good thing btw).
Multiple versions should be an option, not a standard.
I really don't understand why you don't have a built-in updater that updates or upgrades the installation and removes unnecessary files. In WebStorm the smaller "patches" do get installed this way, but the bigger upgrades still have to be installed "manually".
You should incorporate an "Update settings" in the preferences where one could choose between manual updating and built-in updating (with removal of old version), imo the default settings would be internal updating.