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Release 14.12 ("Caterpillar", 2014/12/30) {#sec-release-14.12}

In addition to numerous new and upgraded packages, this release has the following highlights:

  • Systemd has been updated to version 217, which has numerous improvements.

  • Nix has been updated to 1.8.

  • NixOS is now based on Glibc 2.20.

  • KDE has been updated to 4.14.

  • The default Linux kernel has been updated to 3.14.

  • If users.mutableUsers is enabled (the default), changes made to the declaration of a user or group will be correctly realised when running nixos-rebuild. For instance, removing a user specification from configuration.nix will cause the actual user account to be deleted. If users.mutableUsers is disabled, it is no longer necessary to specify UIDs or GIDs; if omitted, they are allocated dynamically.

Following new services were added since the last release:

  • atftpd

  • bosun

  • bspwm

  • chronos

  • collectd

  • consul

  • cpuminer-cryptonight

  • crashplan

  • dnscrypt-proxy

  • docker-registry

  • docker

  • etcd

  • fail2ban

  • fcgiwrap

  • fleet

  • fluxbox

  • gdm

  • geoclue2

  • gitlab

  • gitolite

  • gnome3.gnome-documents

  • gnome3.gnome-online-miners

  • gnome3.gvfs

  • gnome3.seahorse

  • hbase

  • i2pd

  • influxdb

  • kubernetes

  • liquidsoap

  • lxc

  • mailpile

  • mesos

  • mlmmj

  • monetdb

  • mopidy

  • neo4j

  • nsd

  • openntpd

  • opentsdb

  • openvswitch

  • parallels-guest

  • peerflix

  • phd

  • polipo

  • prosody

  • radicale

  • redmine

  • riemann

  • scollector

  • seeks

  • siproxd

  • strongswan

  • tcsd

  • teamspeak3

  • thermald

  • torque/mrom

  • torque/server

  • uhub

  • unifi

  • znc

  • zookeeper

When upgrading from a previous release, please be aware of the following incompatible changes:

  • The default version of Apache httpd is now 2.4. If you use the extraConfig option to pass literal Apache configuration text, you may need to update it --- see Apache's documentation for details. If you wish to continue to use httpd 2.2, add the following line to your NixOS configuration:

    {
  services.httpd.package = pkgs.apacheHttpd_2_2;
}

  • PHP 5.3 has been removed because it is no longer supported by the PHP project. A migration guide is available.

  • The host side of a container virtual Ethernet pair is now called ve-container-name rather than c-container-name.

  • GNOME 3.10 support has been dropped. The default GNOME version is now 3.12.

  • VirtualBox has been upgraded to 4.3.20 release. Users may be required to run rm -rf /tmp/.vbox*. The line imports = [ <nixpkgs/nixos/modules/programs/virtualbox.nix> ] is no longer necessary, use services.virtualboxHost.enable = true instead.

    Also, hardening mode is now enabled by default, which means that unless you want to use USB support, you no longer need to be a member of the vboxusers group.

  • Chromium has been updated to 39.0.2171.65. enablePepperPDF is now enabled by default. chromium*Wrapper packages no longer exist, because upstream removed NSAPI support. chromium-stable has been renamed to chromium.

  • Python packaging documentation is now part of nixpkgs manual. To override the python packages available to a custom python you now use pkgs.pythonFull.buildEnv.override instead of pkgs.pythonFull.override.

  • boot.resumeDevice = "8:6" is no longer supported. Most users will want to leave it undefined, which takes the swap partitions automatically. There is an evaluation assertion to ensure that the string starts with a slash.

  • The system-wide default timezone for NixOS installations changed from CET to UTC. To choose a different timezone for your system, configure time.timeZone in configuration.nix. A fairly complete list of possible values for that setting is available at https://en.wikipedia.org/wiki/List_of_tz_database_time_zones.

  • GNU screen has been updated to 4.2.1, which breaks the ability to connect to sessions created by older versions of screen.

  • The Intel GPU driver was updated to the 3.x prerelease version (used by most distributions) and supports DRI3 now.