debian-policy 3.9.6.1 (amd64 binary) in ubuntu xenial

 This package contains:
    - Debian Policy Manual
    - Filesystem Hierarchy Standard (FHS)
    - Debian Menu sub-policy
    - Debian Perl sub-policy
    - Debian configuration management specification
    - Machine-readable debian/copyright specification
    - Authoritative list of virtual package names
    - Policy checklist for upgrading your packages
    - Paper about libc6 migration
 It also replaces the old Packaging Manual; most of the still-relevant
 content is now included as appendices to the Policy Manual.