Kori has been working on packaging for and uploading the Xfce 4.10pre2 to the Phinx repo's.
Open Synaptic, click Reload, Mark All Upgrades and click on Apply to pull in the updates. Reboot after that.
Only one thing isn't amongst the updates and will be kept back by our developer, due a packaging error, until a patch or new version is available to fix the bug.
It's the xfce4-panel package/update. Thunar seems to keep removing it somehow.
So we have to wait for that.
Everything else works fine.
Info Source: http://phinxdesktop.slyip.net/phinxdesktop/?p=268