I confirmed version of zfs(zfsutils-linux) and lxd.
ubu@ubuntu16:~$ apt-cache policy zfsutils-linux zfsutils-linux: Installed: 0.6.5.6-0ubuntu15 Candidate: 0.6.5.6-0ubuntu15 Version table: *** 0.6.5.6-0ubuntu15 500 500 http://jp.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 0.6.5.6-0ubuntu8 500 500 http://jp.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages ubu@ubuntu16:~$
ubu@ubuntu16:~$ apt-cache policy lxd lxd: Installed: 2.0.8-0ubuntu1~ubuntu16.04.2 Candidate: 2.0.8-0ubuntu1~ubuntu16.04.2 Version table: 2.7-0ubuntu2~ubuntu16.04.1 100 100 http://jp.archive.ubuntu.com/ubuntu xenial-backports/main amd64 Packages *** 2.0.8-0ubuntu1~ubuntu16.04.2 500 500 http://jp.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 2.0.2-0ubuntu1~16.04.1 500 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages 2.0.0-0ubuntu4 500 500 http://jp.archive.ubuntu.com/ubuntu xenial/main amd64 Packages ubu@ubuntu16:~$