sudo apt-get dist-upgrade
[sudo] password for user: 
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:
  linux-headers-4.4.0-22 linux-headers-4.4.0-22-generic linux-headers-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
  linux-generic
The following NEW packages will be installed:
  linux-headers-4.4.0-22 linux-headers-4.4.0-22-generic
The following packages have been kept back:
  linux-image-generic
The following packages will be upgraded:
  accountsservice bind9-host brltty brltty-x11 distro-info-data dnsutils dpkg
  file-roller firefox firefox-locale-en fwupd gir1.2-soup-2.4 gnome-software
  gnome-software-common language-selector-common language-selector-gnome
  libaccountsservice0 libbind9-140 libbrlapi0.6 libdfu1 libdns-export162
  libdns162 libdpkg-perl libfwupd1 libisc-export160 libisc160 libisccc140
  libisccfg140 libllvm3.8 liblwres141 libnm-gtk-common libnm-gtk0
  libnma-common libnma0 libpam-systemd libplymouth4 libsmbclient
  libsoup-gnome2.4-1 libsoup2.4-1 libssl1.0.0 libsystemd0 libtasn1-6
  libtevent0 libudev1 libwbclient0 linux-headers-generic linux-libc-dev
  network-manager-gnome openssh-client openssl plymouth plymouth-label
  plymouth-theme-ubuntu-text python3-distupgrade samba-libs snapd sudo systemd
  systemd-sysv thermald thunderbird ubuntu-core-launcher ubuntu-drivers-common
  ubuntu-release-upgrader-core ubuntu-release-upgrader-gtk udev xbrlapi xinit
68 upgraded, 2 newly installed, 1 to remove and 1 not upgraded.
Need to get 128 MB of archives.
After this operation, 81,9 MB of additional disk space will be used.
Do you want to continue? [Y/n]