Upgrade hangs when source system has systemd installed. [https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774153] \\
systemd-tty-ask-password-agent hangs \\
Workaround - systemctl daemon-reexec


<code>
openssh (1:6.7-5) unstable; urgency=medium

  openssh-server 1:6.7p1-4 changed the default setting of AcceptEnv to list
  a number of specific LC_FOO variables rather than the wildcard LC_*.  I
  have since been persuaded that this was a bad idea and have reverted it,
  but it is difficult to automatically undo the change to
  /etc/ssh/sshd_config without compounding the problem (that of modifying
  configuration that some users did not want to be modified) further.  Most
  users who upgraded via version 1:6.7p1-4 should restore the previous value
  of "AcceptEnv LANG LC_*" in /etc/ssh/sshd_config.


* The default session.save_path has been changed from /var/lib/php5
    to /var/lib/php5/sessions.

  * Full upstream upgrade notes are available at:
    /usr/share/doc/php5-common/UPGRADING.gz
</code>