The most recent releases of all goodies can be found on here.
Our Git server contains a repository for each project.
Depending on the category of the package to check.
git clone git://git.xfce.org/$(category)/$(AppName)
for example to check the package ristretto which is part of apps category.
git clone git://git.xfce.org/apps/ristretto
git clone ssh://git@git.xfce.org/$(category)/$(AppName)
You can browse the sources using your web browser with our cgit installation on http://git.xfce.org/.