According to the download pop-up in web ui:
Hash-SHA-256 : 49848820dd6dd415decdaf0b7c9c9830ef8b4c8d5aade9f45a6668504a71dfc7
Linux (.deb) Installation Requirements
We support Debian 7, 8 and Ubuntu 12, 14, 15.
I found a Qualys Community thread that said Ubuntu 16 was supported in 2016, but why does the actual download page still not indicate 16 is supported?