No, there has been some changes in ownCloud and many apps were moved to “3rd party apps” category outside of core. When you upgrade ownCloud all 3rd party apps have to be disabled. If you have 3rd party apps and make an upgrade your server goes in maintenance mode and tells you to disable those apps and upgrade again.
I could be wrong but I don’t know any. You need to install the db, php, apache that requires root privileges.
Then you need to download the code of ownCloud and give the apache user ownership of the ownCloud code, this is also only possible with root privileges as far as I know.