So …
At time of writing Latest version can be found here : http://www.imagemagick.org/script/download.php
wget “http://www.imagemagick.org/download/ImageMagick-6.8.6-9.tar.gz”
sudo apt-get install build-essential checkinstall && sudo apt-get build-dep imagemagick
tar xzvf ImageMagick-*
cd ImageMagick-6.8.6-9
./configure –prefix=/opt/imagemagick-6.8 && make