Comment 68 for bug 1357093

This was fixed in Xenial. The default is now to remove newly unused dependencies after every unattended upgrade.

---
unattended-upgrades (0.89) unstable; urgency=medium

  [ Michael Vogt ]
  * Add `Unattended-Upgrade::Remove-New-Unused-Dependencies` that
    defaults to "yes". This ensures that older kernel
    get automatically cleaned up and /boot will not overflow.
    LP: #1267059
  * Remove downloaded deb packages after successful installs.
    This can be controlled via the option:
    `Unattended-Upgrade::Keep-Debs-After-Install`
    (Closes: #809428)
  * Only remove debs in the cache dir

  [ Steffen Köhler ]
  * Allow to configure sender email via `Unattended-Upgrade::Sender`

  [ Antti Riikonen ]
  * Minor typo fix in comment

  [ Cleto Martin ]
  * bugfix: non-ascii chars in dpkg log file crashes unattended upgrades
    Closes: #812857

  [ James Valleroy ]
  * Set debconf value for auto updates based on current configuration.

  [ Alexandre Detiste ]
  * update French transalation

 -- Michael Vogt <email address hidden> Sat, 30 Jan 2016 16:04:52 +0100