Silent install: Remove older versions of IntelliJ when installing new version.

In my silent install package I always have to add a command to remove the old version of IntelliJ.
This works, but I always have to update the foldername since IntelliJ always installs in a new folder with the fileversion.
Like: C:\Program Files\Jetbrains\IntelliJ IDEA 2018.1\bin\Uninstall.exe

This is a problem in an environment where I have users with multiple versions and want to update them all to the latest version.
I can't add a command for each version since some users manually update their installation. There are just to mant different versions.
Why can't the silent installer just remove all older versions like a normal application update?

Does anyone have tips?