libboost1.61-dev:
  Installed: 1.61.0+dfsg-2.1
  Candidate: 1.61.0+dfsg-2.1
  Version table:
 *** 1.61.0+dfsg-2.1 500
        500 http://archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
        100 /var/lib/dpkg/status