Where ist the "setup-owncloud.php" file for version 10.0.6 (newest)?

I can’t find the “setup-owncloud.php” file used to install owncloud in a hosted environment. I wanted to make a clean install from 9.0 to the newest 10.0.6 version, but I can not seem to find the mentioned file anywhere. It made installation very easy, and when I have to copy the whole owncloud folder manually, it takes forever and does not work quite as well.

Or is there any other preferred installation method I should use on a hosted server?

Did you mean the web installer?

The recommended setup is the manual installation and upgrade: