Xfce 4.10 (final release) PPA for Xubuntu 12.04 LTS is ready.

"Please note that only Xfce 4.8 is officially supported on Xubuntu 12.04. Therefore, any bug report filed with this PPA enabled is likely to get rejected, or you may be asked to reproduce the issue with Xfce 4.8. The first Xubuntu release to feature Xfce 4.10 will be Xubuntu 12.10."

It is not recommended to use this PPA if you need a really stable system!

- If you decide to proceed, type:
sudo add-apt-repository ppa:xubuntu-dev/xfce-4.10
sudo apt-get update
sudo apt-get dist-upgrade
- If you decide to remove Xfce 4.10, type:
sudo apt-get install ppa-purge
sudo ppa-purge ppa:xubuntu-dev/xfce-4.10

For questions and bugs with software in this PPA please contact Xubuntu Developers at launchpad: https://launchpad.net/~xubuntu-dev