Well the description says it all. We really like to compile and build packages for the new xfce4-screenshooter. Unfortunately it requires xfce4-panel 4.13 (gtk3) which is not yet released. It would have made sense waiting for the panel to be released first.
Xfce4-panel 4.1.3 was released today: https://mail.xfce.org/pipermail/xfce-announce/2017-May/000517.html Sorry for the inconvenience.