Comment 4 for bug 1686237

Tested, as per usual, by installing php in a LXD 17.04 and 16.10 container and then upgrading to the versions in -proposed. Everything went smoothly:

16.10:

# apt policy php7.0
php7.0:
  Installed: 7.0.18-0ubuntu0.16.10.1
  Candidate: 7.0.18-0ubuntu0.16.10.1
  Version table:
 *** 7.0.18-0ubuntu0.16.10.1 500
        500 http://archive.ubuntu.com/ubuntu yakkety-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     7.0.15-0ubuntu0.16.10.4 500
        500 http://archive.ubuntu.com/ubuntu yakkety-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu yakkety-security/main amd64 Packages
     7.0.8-3ubuntu3 500
        500 http://archive.ubuntu.com/ubuntu yakkety/main amd64 Packages

17.04:

# apt policy php7.0
php7.0:
  Installed: 7.0.18-0ubuntu0.17.04.1
  Candidate: 7.0.18-0ubuntu0.17.04.1
  Version table:
 *** 7.0.18-0ubuntu0.17.04.1 500
        500 http://archive.ubuntu.com/ubuntu zesty-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     7.0.15-1ubuntu4 500
        500 http://archive.ubuntu.com/ubuntu zesty/main amd64 Packages

Marking v-d.