Deleting old versions

I am currently using Cubase Pro 9, but I also have installed on this PC earlier versions 6.0, 6.5, 7.0, 7.5, 8.0 and 8.5. As you can imagine these take up a lot of disk space, space which I could be doing with.

Can I now safely delete those earlier versions or will the current version be using them in any way? All advice would be welcome.

Any shared stuff will not be uninstalled with the program.

Thanks. So the thing to do would be to uninstall each of the previous versions in sequence, staring with the oldest one?

Doesn’t matter, just uninstall in any order you like.