I've installed the latest release candidate into the $HOME/xfce-local/ directory. However when I login to my session the older version of xfce is starting. How can I set it up so that the new version starts?
Also I would like to uninstall the previous version, which I had installed using apt-get in Ubuntu. If I uninstall the previous version, I suspect xfce will not appear as a session option in my login window, isn't it? How can I make it appear there?
Look at your /usr/share/xsessions folder. There should be a desktop file for xfce. Edit the "Exec=..." line.