I am working in Debian 7 64bits with xfce 4.8
But in backports repository I found xfce 4.10.1
and I added this line in my sources.list:
deb http://ftp.debian.org/debian/ wheezy-backports main contrib non-free
but when I upgrade I do not see that can be updated.
Then, how I can upgrade xfce 4.8 to 4.10 cleanly with backports? without tricks like adding repo of debian 8 testing or others.