apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  aspell aspell-en dbconfig-common dictionaries-common javascript-common
  libaspell15 libc-client2007e libjs-codemirror libjs-jquery
  libjs-jquery-cookie libjs-jquery-event-drag libjs-jquery-metadata
  libjs-jquery-mousewheel libjs-jquery-tablesorter libjs-jquery-ui
  libjs-underscore libssh2-1 linux-headers-3.13.0-32
  linux-headers-3.13.0-32-generic linux-headers-3.13.0-36
  linux-headers-3.13.0-36-generic linux-image-3.13.0-32-generic
  linux-image-3.13.0-36-generic linux-image-extra-3.13.0-32-generic
  linux-image-extra-3.13.0-36-generic mlock php-auth php-auth-sasl php-db
  php-gettext php-http-request php-imap php-intl php-log php-mail
  php-mail-mime php-mdb2 php-net-dime php-net-sieve php-net-smtp
  php-net-socket php-net-url php-pspell php-soap php5 php5-common php5-imap
  php5-intl php5-pspell php5-readline php7.0-imap php7.0-intl php7.0-pspell
  roundcube-mysql tinymce
Use 'apt-get autoremove' to remove them.
The following packages have been kept back:
  linux-generic linux-headers-generic linux-image-generic
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.