unity-control-center is still in xenial-proposed at https://launchpad.net/ubuntu/+source/unity-control-center/15.04.0+16.04.20170214-0ubuntu1
unity-control- center is still in xenial-proposed at https:/ /launchpad. net/ubuntu/ +source/ unity-control- center/ 15.04.0+ 16.04.20170214- 0ubuntu1