We are excited to announce that the Virtualmin installer now supports Debian 8!
Installation instructions are available here:
https://www.virtualmin.com/download.html
Also, if you are planning to upgrade from an earlier Debian version – you can find upgrade instructions here:
https://www.virtualmin.com/documentation/system/os/debian-wheezy-to-jessie-distupgrade
Let us know if you have any questions, or run into any problems.