* Linkify all service options used in the code-examples.
* Demonstrated the use of `riot-web.override {}`.
* Moved the example how to configure a postgresql-database for
  `matrix-synapse` to this document from the 20.03 release-notes.
		
	
			
		
			
				
	
	
		
			767 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			XML
		
	
	
	
	
	
			
		
		
	
	
			767 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			XML
		
	
	
	
	
	
<section xmlns="http://docbook.org/ns/docbook"
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         xmlns:xlink="http://www.w3.org/1999/xlink"
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         xmlns:xi="http://www.w3.org/2001/XInclude"
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         version="5.0"
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         xml:id="sec-release-20.03">
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 <title>Release 20.03 (“Markhor”, 2020.03/??)</title>
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 <section xmlns="http://docbook.org/ns/docbook"
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         xmlns:xlink="http://www.w3.org/1999/xlink"
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         xmlns:xi="http://www.w3.org/2001/XInclude"
 | 
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         version="5.0"
 | 
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         xml:id="sec-release-20.03-highlights">
 | 
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  <title>Highlights</title>
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  <para>
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   In addition to numerous new and upgraded packages, this release has the
 | 
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   following highlights:
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  </para>
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 | 
						||
  <itemizedlist>
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   <listitem>
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    <para>
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     Support is planned until the end of October 2020, handing over to 20.09.
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    </para>
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   </listitem>
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   <listitem>
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    <para>
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     Linux kernel is updated to branch 5.4 by default (from 4.19).
 | 
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     Users of Intel GPUs may prefer to explicitly set branch to 4.19 to avoid some regressions.
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     <programlisting>boot.kernelPackages = pkgs.linuxPackages_4_19;</programlisting>
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    </para>
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   </listitem>
 | 
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   <listitem>
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    <para>
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     Postgresql for NixOS service now defaults to v11.
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    </para>
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   </listitem>
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   <listitem>
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    <para>
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     The graphical installer image starts the graphical session automatically.
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     Before you'd be greeted by a tty and asked to enter <command>systemctl start display-manager</command>.
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     It is now possible to disable the display-manager from running by selecting the <literal>Disable display-manager</literal>
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     quirk in the boot menu.
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    </para>
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   </listitem>
 | 
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   <listitem>
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     <para>
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       By default zfs pools will now be trimmed on a weekly basis.
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       Trimming is only done on supported devices (i.e. NVME or SSDs)
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       and should improve throughput and lifetime of these devices.
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       It is controlled by the <varname>services.zfs.trim.enable</varname> varname.
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       The zfs scrub service (<varname>services.zfs.autoScrub.enable</varname>)
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       and the zfs autosnapshot service (<varname>services.zfs.autoSnapshot.enable</varname>)
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       are now only enabled if zfs is set in <varname>config.boot.initrd.supportedFilesystems</varname> or
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       <varname>config.boot.supportedFilesystems</varname>. These lists will automatically contain
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       zfs as soon as any zfs mountpoint is configured in <varname>fileSystems</varname>.
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     </para>
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   </listitem>
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   <listitem>
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    <para>
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      <command>nixos-option</command> has been rewritten in C++, speeding it up, improving correctness,
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      and adding a <option>-r</option> option which prints all options and their values recursively.
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    </para>
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   </listitem>
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   <listitem>
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    <para>
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     <option>services.xserver.desktopManager.default</option> and <option>services.xserver.windowManager.default</option> options were replaced by a single <xref linkend="opt-services.xserver.displayManager.defaultSession"/> option to improve support for upstream session files. If you used something like:
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<programlisting>
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services.xserver.desktopManager.default = "xfce";
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services.xserver.windowManager.default = "icewm";
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</programlisting>
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     you should change it to:
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<programlisting>
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services.xserver.displayManager.defaultSession = "xfce+icewm";
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</programlisting>
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    </para>
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   </listitem>
 | 
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  </itemizedlist>
 | 
						||
 </section>
 | 
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 | 
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 <section xmlns="http://docbook.org/ns/docbook"
 | 
						||
         xmlns:xlink="http://www.w3.org/1999/xlink"
 | 
						||
         xmlns:xi="http://www.w3.org/2001/XInclude"
 | 
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         version="5.0"
 | 
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         xml:id="sec-release-20.03-new-services">
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  <title>New Services</title>
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 | 
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  <para>
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   The following new services were added since the last release:
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  </para>
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 | 
						||
  <itemizedlist>
 | 
						||
   <listitem>
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    <para>
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    The kubernetes kube-proxy now supports a new hostname configuration
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    <literal>services.kubernetes.proxy.hostname</literal> which has to
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    be set if the hostname of the node should be non default.
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    </para>
 | 
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   </listitem>
 | 
						||
   <listitem>
 | 
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    <para>
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    UPower's configuration is now managed by NixOS and can be customized
 | 
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    via <option>services.upower</option>.
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    </para>
 | 
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   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
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     To use Geary you should enable <xref linkend="opt-programs.geary.enable"/> instead of
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     just adding it to <xref linkend="opt-environment.systemPackages"/>.
 | 
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     It was created so Geary could function properly outside of GNOME.
 | 
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    </para>
 | 
						||
   </listitem>
 | 
						||
  </itemizedlist>
 | 
						||
 | 
						||
 </section>
 | 
						||
 | 
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 <section xmlns="http://docbook.org/ns/docbook"
 | 
						||
         xmlns:xlink="http://www.w3.org/1999/xlink"
 | 
						||
         xmlns:xi="http://www.w3.org/2001/XInclude"
 | 
						||
         version="5.0"
 | 
						||
         xml:id="sec-release-20.03-incompatibilities">
 | 
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  <title>Backward Incompatibilities</title>
 | 
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 | 
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  <para>
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   When upgrading from a previous release, please be aware of the following
 | 
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   incompatible changes:
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  </para>
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 | 
						||
  <itemizedlist>
 | 
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   <listitem>
 | 
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    <para>
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      GnuPG is now built without support for a graphical passphrase entry
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      by default. Please enable the <literal>gpg-agent</literal> user service
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      via the NixOS option <literal>programs.gnupg.agent.enable</literal>.
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      Note that upstream recommends using <literal>gpg-agent</literal> and
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      will spawn a <literal>gpg-agent</literal> on the first invocation of
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      GnuPG anyway.
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    </para>
 | 
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   </listitem>
 | 
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   <listitem>
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    <para>
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     The <literal>dynamicHosts</literal> option has been removed from the
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     <link linkend="opt-networking.networkmanager.enable">NetworkManager</link>
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     module. Allowing (multiple) regular users to override host entries
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     affecting the whole system opens up a huge attack vector.
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     There seem to be very rare cases where this might be useful.
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     Consider setting system-wide host entries using
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     <link linkend="opt-networking.hosts">networking.hosts</link>, provide
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     them via the DNS server in your network, or use
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     <link linkend="opt-environment.etc">environment.etc</link>
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     to add a file into <literal>/etc/NetworkManager/dnsmasq.d</literal>
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     reconfiguring <literal>hostsdir</literal>.
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    </para>
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   </listitem>
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   <listitem>
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    <para>
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     The <literal>99-main.network</literal> file was removed. Matching all
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     network interfaces caused many breakages, see
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     <link xlink:href="https://github.com/NixOS/nixpkgs/pull/18962">#18962</link>
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       and <link xlink:href="https://github.com/NixOS/nixpkgs/pull/71106">#71106</link>.
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    </para>
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    <para>
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     We already don't support the global <link linkend="opt-networking.useDHCP">networking.useDHCP</link>,
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     <link linkend="opt-networking.defaultGateway">networking.defaultGateway</link> and
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     <link linkend="opt-networking.defaultGateway6">networking.defaultGateway6</link> options
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     if <link linkend="opt-networking.useNetworkd">networking.useNetworkd</link> is enabled,
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     but direct users to configure the per-device
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     <link linkend="opt-networking.interfaces">networking.interfaces.<name>.…</link> options.
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    </para>
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   </listitem>
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   <listitem>
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    <para>
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      The stdenv now runs all bash with <literal>set -u</literal>, to catch the use of undefined variables.
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      Before, it itself used <literal>set -u</literal> but was careful to unset it so other packages' code ran as before.
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      Now, all bash code is held to the same high standard, and the rather complex stateful manipulation of the options can be discarded.
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    </para>
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   </listitem>
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   <listitem>
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    <para>
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     The SLIM Display Manager has been removed, as it has been unmaintained since 2013.
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     Consider migrating to a different display manager such as LightDM (current default in NixOS),
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     SDDM, GDM, or using the startx module which uses Xinitrc.
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    </para>
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						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
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     The Way Cooler wayland compositor has been removed, as the project has been officially canceled.
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     There are no more <literal>way-cooler</literal> attribute and <literal>programs.way-cooler</literal> options.
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    </para>
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						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
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      The BEAM package set has been deleted. You will only find there the different interpreters.
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      You should now use the different build tools coming with the languages with sandbox mode disabled.
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    </para>
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   </listitem>
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						||
   <listitem>
 | 
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    <para>
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     There is now only one Xfce package-set and module. This means that attributes <literal>xfce4-14</literal>
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     and <literal>xfceUnstable</literal> all now point to the latest Xfce 4.14
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     packages. And in the future NixOS releases will be the latest released version of Xfce available at the
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						||
     time of the release's development (if viable).
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
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						||
      The <link linkend="opt-services.phpfpm.pools">phpfpm</link> module now sets
 | 
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      <literal>PrivateTmp=true</literal> in its systemd units for better process isolation.
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						||
      If you rely on <literal>/tmp</literal> being shared with other services, explicitly override this by
 | 
						||
      setting <literal>serviceConfig.PrivateTmp</literal> to <literal>false</literal> for each phpfpm unit.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     KDE’s old multimedia framework Phonon no longer supports Qt 4. For that reason, Plasma desktop also does not have <option>enableQt4Support</option> option any more.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The BeeGFS module has been removed.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The osquery module has been removed.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
      Going forward, <literal>~/bin</literal> in the users home directory will no longer be in <literal>PATH</literal> by default.
 | 
						||
      If you depend on this you should set the option <literal>environment.homeBinInPath</literal> to <literal>true</literal>.
 | 
						||
      The aforementioned option was added this release.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
      The <literal>buildRustCrate</literal> infrastructure now produces <literal>lib</literal> outputs in addition to the <literal>out</literal> output.
 | 
						||
      This has led to drastically reduced closed sizes for some rust crates since development dependencies are now in the <literal>lib</literal> output.
 | 
						||
    </para>
 | 
						||
    </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     Pango was upgraded to 1.44, which no longer uses freetype for font loading.  This means that type1
 | 
						||
     and bitmap fonts are no longer supported in applications relying on Pango for font rendering
 | 
						||
     (notably, GTK application). See <link xlink:href="https://gitlab.gnome.org/GNOME/pango/issues/386">
 | 
						||
     upstream issue</link> for more information.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <literal>roundcube</literal> module has been hardened.
 | 
						||
     <itemizedlist>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
        The password of the database is not written world readable in the store any more. If <literal>database.host</literal> is set to <literal>localhost</literal>, then a unix user of the same name as the database will be created and PostreSQL peer authentication will be used, removing the need for a password. Otherwise, a password is still needed and can be provided with the new option <literal>database.passwordFile</literal>, which should be set to the path of a file containing the password and readable by the user <literal>nginx</literal> only. The <literal>database.password</literal> option is insecure and deprecated. Usage of this option will print a warning.
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
        A random <literal>des_key</literal> is set by default in the configuration of roundcube, instead of using the hardcoded and insecure default. To ensure a clean migration, all users will be logged out when you upgrade to this release.
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
     </itemizedlist>
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The packages <literal>openobex</literal> and <literal>obexftp</literal>
 | 
						||
     are no longer installed when enabling Bluetooth via
 | 
						||
     <option>hardware.bluetooth.enable</option>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <literal>dump1090</literal> derivation has been changed to use FlightAware's dump1090
 | 
						||
     as its upstream. However, this version does not have an internal webserver anymore. The
 | 
						||
     assets in the <literal>share/dump1090</literal> directory of the derivation can be used
 | 
						||
     in conjunction with an external webserver to replace this functionality.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The fourStore and fourStoreEndpoint modules have been removed.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     Polkit no longer has the user of uid 0 (root) as an admin identity.
 | 
						||
     We now follow the upstream default of only having every member of the wheel
 | 
						||
     group admin privileged. Before it was root and members of wheel.
 | 
						||
     The positive outcome of this is pkexec GUI popups or terminal prompts
 | 
						||
     will no longer require the user to choose between two essentially equivalent
 | 
						||
     choices (whether to perform the action as themselves with wheel permissions, or as the root user).
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     NixOS containers no longer build NixOS manual by default. This saves evaluation time,
 | 
						||
     especially if there are many declarative containers defined. Note that this is already done
 | 
						||
     when <literal><nixos/modules/profiles/minimal.nix></literal> module is included
 | 
						||
     in container config.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <literal>kresd</literal> services deprecates the <literal>interfaces</literal> option
 | 
						||
     in favor of the <literal>listenPlain</literal> option which requires full
 | 
						||
     <link xlink:href="https://www.freedesktop.org/software/systemd/man/systemd.socket.html#ListenStream=">systemd.socket compatible</link>
 | 
						||
     declaration which always include a port.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     Virtual console options have been reorganized and can be found under
 | 
						||
     a single top-level attribute: <literal>console</literal>.
 | 
						||
     The full set of changes is as follows:
 | 
						||
    </para>
 | 
						||
    <itemizedlist>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>i18n.consoleFont</literal> renamed to
 | 
						||
         <link linkend="opt-console.font">console.font</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>i18n.consoleKeyMap</literal> renamed to
 | 
						||
         <link linkend="opt-console.keyMap">console.keyMap</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>i18n.consoleColors</literal> renamed to
 | 
						||
         <link linkend="opt-console.colors">console.colors</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>i18n.consolePackages</literal> renamed to
 | 
						||
         <link linkend="opt-console.packages">console.packages</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>i18n.consoleUseXkbConfig</literal> renamed to
 | 
						||
         <link linkend="opt-console.useXkbConfig">console.useXkbConfig</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>boot.earlyVconsoleSetup</literal> renamed to
 | 
						||
         <link linkend="opt-console.earlySetup">console.earlySetup</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>boot.extraTTYs</literal> renamed to
 | 
						||
         <link linkend="opt-console.extraTTYs">console.extraTTYs</link>
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
    </itemizedlist>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <link linkend="opt-services.awstats.enable">awstats</link> module has been rewritten
 | 
						||
     to serve stats via static html pages, updated on a timer, over <link linkend="opt-services.nginx.virtualHosts">nginx</link>,
 | 
						||
     instead of dynamic cgi pages over <link linkend="opt-services.httpd.enable">apache</link>.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     Minor changes will be required to migrate existing configurations. Details of the
 | 
						||
     required changes can seen by looking through the <link linkend="opt-services.awstats.enable">awstats</link>
 | 
						||
     module.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
      The httpd module no longer provides options to support serving web content without defining a virtual host. As a
 | 
						||
      result of this the <link linkend="opt-services.httpd.logPerVirtualHost">services.httpd.logPerVirtualHost</link>
 | 
						||
      option now defaults to <literal>true</literal> instead of <literal>false</literal>. Please update your
 | 
						||
      configuration to make use of <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts</link>.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
      The <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name></link>
 | 
						||
      option has changed type from a list of submodules to an attribute set of submodules, better matching
 | 
						||
      <link linkend="opt-services.nginx.virtualHosts">services.nginx.virtualHosts.<name></link>.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
      This change comes with the addition of the following options which mimic the functionality of their <literal>nginx</literal> counterparts:
 | 
						||
      <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name>.addSSL</link>,
 | 
						||
      <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name>.forceSSL</link>,
 | 
						||
      <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name>.onlySSL</link>,
 | 
						||
      <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name>.enableACME</link>,
 | 
						||
      <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name>.acmeRoot</link>, and
 | 
						||
      <link linkend="opt-services.httpd.virtualHosts">services.httpd.virtualHosts.<name>.useACMEHost</link>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     For NixOS configuration options, the <literal>loaOf</literal> type has
 | 
						||
     been deprecated and will be removed in a future release. In nixpkgs,
 | 
						||
     options of this type will be changed to <literal>attrsOf</literal>
 | 
						||
     instead. If you were using one of these in your configuration, you will
 | 
						||
     see a warning suggesting what changes will be required.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     For example, <link linkend="opt-users.users">users.users</link> is a
 | 
						||
     <literal>loaOf</literal> option that is commonly used as follows:
 | 
						||
     <programlisting>
 | 
						||
users.users =
 | 
						||
  [ { name = "me";
 | 
						||
      description = "My personal user.";
 | 
						||
      isNormalUser = true;
 | 
						||
    }
 | 
						||
  ];
 | 
						||
     </programlisting>
 | 
						||
     This should be rewritten by removing the list and using the
 | 
						||
     value of <literal>name</literal> as the name of the attribute set:
 | 
						||
     <programlisting>
 | 
						||
users.users.me =
 | 
						||
  { description = "My personal user.";
 | 
						||
    isNormalUser = true;
 | 
						||
  };
 | 
						||
     </programlisting>
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     For more information on this change have look at these links:
 | 
						||
     <link xlink:href="https://github.com/NixOS/nixpkgs/issues/1800">issue #1800</link>,
 | 
						||
     <link xlink:href="https://github.com/NixOS/nixpkgs/pull/63103">PR #63103</link>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     For NixOS modules, the types <literal>types.submodule</literal> and <literal>types.submoduleWith</literal> now support
 | 
						||
     paths as allowed values, similar to how <literal>imports</literal> supports paths.
 | 
						||
     Because of this, if you have a module that defines an option of type
 | 
						||
     <literal>either (submodule ...) path</literal>, it will break since a path
 | 
						||
     is now treated as the first type instead of the second. To fix this, change
 | 
						||
     the type to <literal>either path (submodule ...)</literal>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
      The <link linkend="opt-services.buildkite-agents">Buildkite
 | 
						||
      Agent</link> module and corresponding packages have been updated to
 | 
						||
      3.x, and to support multiple instances of the agent running at the
 | 
						||
      same time. This means you will have to rename
 | 
						||
      <literal>services.buildkite-agent</literal> to
 | 
						||
      <literal>services.buildkite-agents.<name></literal>. Furthermore,
 | 
						||
      the following options have been changed:
 | 
						||
    </para>
 | 
						||
    <itemizedlist>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>services.buildkite-agent.meta-data</literal> has been renamed to
 | 
						||
         <link linkend="opt-services.buildkite-agents">services.buildkite-agents.<name>.tags</link>,
 | 
						||
         to match upstreams naming for 3.x.
 | 
						||
         Its type has also changed - it now accepts an attrset of strings.
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         The<literal>services.buildkite-agent.openssh.publicKeyPath</literal> option
 | 
						||
         has been removed, as it's not necessary to deploy public keys to clone private
 | 
						||
         repositories.
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <literal>services.buildkite-agent.openssh.privateKeyPath</literal>
 | 
						||
         has been renamed to
 | 
						||
         <link linkend="opt-services.buildkite-agents">buildkite-agents.<name>.privateSshKeyPath</link>,
 | 
						||
         as the whole <literal>openssh</literal> now only contained that single option.
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
      <listitem>
 | 
						||
       <para>
 | 
						||
         <link linkend="opt-services.buildkite-agents">services.buildkite-agents.<name>.shell</link>
 | 
						||
         has been introduced, allowing to specify a custom shell to be used.
 | 
						||
       </para>
 | 
						||
      </listitem>
 | 
						||
    </itemizedlist>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <literal>citrix_workspace_19_3_0</literal> package has been removed as
 | 
						||
     it will be EOLed within the lifespan of 20.03. For further information,
 | 
						||
     please refer to the <link xlink:href="https://www.citrix.com/de-de/support/product-lifecycle/milestones/receiver.html">support and maintenance information</link> from upstream.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <literal>gcc5</literal> and <literal>gfortran5</literal> packages have been removed.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <option>services.xserver.displayManager.auto</option> module has been removed.
 | 
						||
     It was only intended for use in internal NixOS tests, and gave the false impression
 | 
						||
     of it being a special display manager when it's actually LightDM.
 | 
						||
     Please use the <xref linkend="opt-services.xserver.displayManager.lightdm.autoLogin"/> options instead,
 | 
						||
     or any other display manager in NixOS as they all support auto-login. If you used this module specifically
 | 
						||
     because it permitted root auto-login you can override the lightdm-autologin pam module like:
 | 
						||
<programlisting>
 | 
						||
<link xlink:href="#opt-security.pam.services._name__.text">security.pam.services.lightdm-autologin.text</link> = lib.mkForce ''
 | 
						||
    auth     requisite pam_nologin.so
 | 
						||
    auth     required  pam_succeed_if.so quiet
 | 
						||
    auth     required  pam_permit.so
 | 
						||
 | 
						||
    account  include   lightdm
 | 
						||
 | 
						||
    password include   lightdm
 | 
						||
 | 
						||
    session  include   lightdm
 | 
						||
'';
 | 
						||
</programlisting>
 | 
						||
     The difference is the:
 | 
						||
<programlisting>
 | 
						||
auth required pam_succeed_if.so quiet
 | 
						||
</programlisting>
 | 
						||
     line, where default it's:
 | 
						||
<programlisting>
 | 
						||
auth required pam_succeed_if.so uid >= 1000 quiet
 | 
						||
</programlisting>
 | 
						||
     not permitting users with uid's below 1000 (like root).
 | 
						||
     All other display managers in NixOS are configured like this.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
     <para>
 | 
						||
       There have been lots of improvements to the Mailman module.  As
 | 
						||
       a result,
 | 
						||
     </para>
 | 
						||
     <itemizedlist>
 | 
						||
       <listitem>
 | 
						||
         <para>
 | 
						||
           The <option>services.mailman.hyperkittyBaseUrl</option>
 | 
						||
           option has been renamed to <xref
 | 
						||
           linkend="opt-services.mailman.hyperkitty.baseUrl"/>.
 | 
						||
         </para>
 | 
						||
       </listitem>
 | 
						||
       <listitem>
 | 
						||
         <para>
 | 
						||
           The <option>services.mailman.hyperkittyApiKey</option>
 | 
						||
           option has been removed.  This is because having an option
 | 
						||
           for the Hyperkitty API key meant that the API key would be
 | 
						||
           stored in the world-readable Nix store, which was a
 | 
						||
           security vulnerability.  A new Hyperkitty API key will be
 | 
						||
           generated the first time the new Hyperkitty service is run,
 | 
						||
           and it will then be persisted outside of the Nix store.  To
 | 
						||
           continue using Hyperkitty, you must set <xref
 | 
						||
           linkend="opt-services.mailman.hyperkitty.enable"/> to
 | 
						||
           <literal>true</literal>.
 | 
						||
         </para>
 | 
						||
       </listitem>
 | 
						||
       <listitem>
 | 
						||
         <para>
 | 
						||
           Additionally, some Postfix configuration must now be set
 | 
						||
           manually instead of automatically by the Mailman module:
 | 
						||
<programlisting>
 | 
						||
<xref linkend="opt-services.postfix.relayDomains"/> = [ "hash:/var/lib/mailman/data/postfix_domains" ];
 | 
						||
<xref linkend="opt-services.postfix.config"/>.transport_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
 | 
						||
<xref linkend="opt-services.postfix.config"/>.local_recipient_maps = [ "hash:/var/lib/mailman/data/postfix_lmtp" ];
 | 
						||
</programlisting>
 | 
						||
           This is because some users may want to include other values
 | 
						||
           in these lists as well, and this was not possible if they
 | 
						||
           were set automatically by the Mailman module.  It would not
 | 
						||
           have been possible to just concatenate values from multiple
 | 
						||
           modules each setting the values they needed, because the
 | 
						||
           order of elements in the list is significant.
 | 
						||
         </para>
 | 
						||
       </listitem>
 | 
						||
     </itemizedlist>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>The LLVM versions 3.5, 3.9 and 4 (including the corresponding CLang versions) have been dropped.</para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <option>networking.interfaces.*.preferTempAddress</option> option has
 | 
						||
     been replaced by <option>networking.interfaces.*.tempAddress</option>.
 | 
						||
     The new option allows better control of the IPv6 temporary addresses,
 | 
						||
     including completely disabling them for interfaces where they are not
 | 
						||
     needed.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
     <para>
 | 
						||
       Rspamd was updated to version 2.2. Read
 | 
						||
       <link xlink:href="https://rspamd.com/doc/migration.html#migration-to-rspamd-20">
 | 
						||
       the upstream migration notes</link> carefully. Please be especially
 | 
						||
       aware that some modules were removed and the default Bayes backend is
 | 
						||
       now Redis.
 | 
						||
     </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <literal>*psu</literal> versions of <package>oraclejdk8</package> have been removed
 | 
						||
     as they aren't provided by upstream anymore.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <option>services.dnscrypt-proxy</option> module has been removed
 | 
						||
     as it used the deprecated version of dnscrypt-proxy. We've added
 | 
						||
     <xref linkend="opt-services.dnscrypt-proxy2.enable"/> to use the supported version.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     <literal>qesteidutil</literal> has been deprecated in favor of <literal>qdigidoc</literal>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     <package>sqldeveloper_18</package> has been removed as it's not maintained anymore,
 | 
						||
     <package>sqldeveloper</package> has been updated to version <literal>19.4</literal>.
 | 
						||
     Please note that this means that this means that the <package>oraclejdk</package> is now
 | 
						||
     required. For further information please read the
 | 
						||
     <link xlink:href="https://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/sqldev-relnotes-194-5908846.html">release notes</link>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <package>gcc-snapshot</package>-package has been removed. It's marked as broken for >2 years and used to point
 | 
						||
     to a fairly old snapshot  from the <package>gcc7</package>-branch.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <citerefentry><refentrytitle>nixos-build-vms</refentrytitle><manvolnum>8</manvolnum>
 | 
						||
     </citerefentry>-script now uses the python test-driver.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <package>riot-web</package> package now accepts configuration overrides as an attribute set instead of a string.
 | 
						||
     A formerly used JSON configuration can be converted to an attribute set with <literal>builtins.fromJSON</literal>.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     The new default configuration also disables automatic guest account registration and analytics to improve privacy.
 | 
						||
     The previous behavior can be restored by setting <literal>config.riot-web.conf = { disable_guests = false; piwik = true; }</literal>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
  </itemizedlist>
 | 
						||
 </section>
 | 
						||
 | 
						||
 <section xmlns="http://docbook.org/ns/docbook"
 | 
						||
         xmlns:xlink="http://www.w3.org/1999/xlink"
 | 
						||
         xmlns:xi="http://www.w3.org/2001/XInclude"
 | 
						||
         version="5.0"
 | 
						||
         xml:id="sec-release-20.03-notable-changes">
 | 
						||
  <title>Other Notable Changes</title>
 | 
						||
 | 
						||
  <itemizedlist>
 | 
						||
   <listitem>
 | 
						||
     <para>SD images are now compressed by default using <literal>bzip2</literal>.</para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The nginx web server previously started its master process as root
 | 
						||
     privileged, then ran worker processes as a less privileged identity user.
 | 
						||
     This was changed to start all of nginx as a less privileged user (defined by
 | 
						||
     <literal>services.nginx.user</literal> and
 | 
						||
     <literal>services.nginx.group</literal>). As a consequence, all files that
 | 
						||
     are needed for nginx to run (included configuration fragments, SSL
 | 
						||
     certificates and keys, etc.) must now be readable by this less privileged
 | 
						||
     user/group.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     OpenSSH has been upgraded from 7.9 to 8.1, improving security and adding features
 | 
						||
     but with potential incompatibilities.  Consult the
 | 
						||
     <link xlink:href="https://www.openssh.com/txt/release-8.1">
 | 
						||
     release announcement</link> for more information.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
     <para>
 | 
						||
       <literal>PRETTY_NAME</literal> in <literal>/etc/os-release</literal>
 | 
						||
       now uses the short rather than full version string.
 | 
						||
     </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The ACME module has switched from simp-le to <link xlink:href="https://github.com/go-acme/lego">lego</link>
 | 
						||
     which allows us to support DNS-01 challenges and wildcard certificates. The following options have been added:
 | 
						||
     <link linkend="opt-security.acme.acceptTerms">security.acme.acceptTerms</link>,
 | 
						||
     <link linkend="opt-security.acme.certs">security.acme.certs.<name>.dnsProvider</link>,
 | 
						||
     <link linkend="opt-security.acme.certs">security.acme.certs.<name>.credentialsFile</link>,
 | 
						||
     <link linkend="opt-security.acme.certs">security.acme.certs.<name>.dnsPropagationCheck</link>.
 | 
						||
     As well as this, the options <literal>security.acme.acceptTerms</literal> and either
 | 
						||
     <literal>security.acme.email</literal> or <literal>security.acme.certs.<name>.email</literal>
 | 
						||
     must be set in order to use the ACME module.
 | 
						||
     Certificates will be regenerated anew on the next renewal date. The credentials for simp-le are
 | 
						||
     preserved and thus it is possible to roll back to previous versions without breaking certificate
 | 
						||
     generation.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
    It is now possible to unlock LUKS-Encrypted file systems using a FIDO2 token
 | 
						||
    via <option>boot.initrd.luks.fido2Support</option>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     Predicatbly named network-interfaces get renamed in stage-1. This means that it's possible
 | 
						||
     to use the proper interface name for e.g. dropbear-setups.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     For further reference, please read <link xlink:href="https://github.com/NixOS/nixpkgs/pull/68953">#68953</link> or the corresponding <link xlink:href="https://discourse.nixos.org/t/predictable-network-interface-names-in-initrd/4055">discourse thread</link>.
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
   <listitem>
 | 
						||
    <para>
 | 
						||
     The <package>matrix-synapse</package>-package has been updated to
 | 
						||
     <link xlink:href="https://github.com/matrix-org/synapse/releases/tag/v1.11.1">v1.11.1</link>.
 | 
						||
     Due to <link xlink:href="https://github.com/matrix-org/synapse/releases/tag/v1.10.0rc1">stricter requirements</link>
 | 
						||
     for database configuration when using <package>postgresql</package>, the automated database setup
 | 
						||
     of the module has been removed to avoid any further edge-cases.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     <package>matrix-synapse</package> expects <literal>postgresql</literal>-databases to have the options
 | 
						||
     <literal>LC_COLLATE</literal> and <literal>LC_CTYPE</literal> set to
 | 
						||
     <link xlink:href="https://www.postgresql.org/docs/12/locale.html"><literal>'C'</literal></link> which basically
 | 
						||
     instructs <literal>postgresql</literal> to ignore any locale-based preferences.
 | 
						||
    </para>
 | 
						||
    <para>
 | 
						||
     Depending on your setup, you need to incorporate one of the following changes in your setup to
 | 
						||
     upgrade to 20.03:
 | 
						||
     <itemizedlist>
 | 
						||
      <listitem><para>If you use <literal>sqlite3</literal> you don't need to do anything.</para></listitem>
 | 
						||
      <listitem><para>If you use <literal>postgresql</literal> on a different server, you don't need
 | 
						||
       to change anything as well since this module was never designed to configure remote databases.
 | 
						||
      </para></listitem>
 | 
						||
      <listitem><para>If you use <literal>postgresql</literal> and configured your synapse initially on
 | 
						||
       <literal>19.09</literal> or older, you simply need to enable <package>postgresql</package>-support
 | 
						||
        explicitly:
 | 
						||
<programlisting>{ ... }: {
 | 
						||
  services.matrix-synapse = {
 | 
						||
    <link linkend="opt-services.matrix-synapse.enable">enable</link> = true;
 | 
						||
    /* and all the other config you've defined here */
 | 
						||
  };
 | 
						||
  <link linkend="opt-services.postgresql.enable">services.postgresql.enable</link> = true;
 | 
						||
}</programlisting>
 | 
						||
      </para></listitem>
 | 
						||
      <listitem><para>If you deploy a fresh <package>matrix-synapse</package>, you need to configure
 | 
						||
       the database yourself (e.g. by using the
 | 
						||
       <link linkend="opt-services.postgresql.initialScript">services.postgresql.initialScript</link>
 | 
						||
       option). An example for this can be found in the
 | 
						||
       <link linkend="module-services-matrix">documentation of the Matrix module</link>.
 | 
						||
      </para></listitem>
 | 
						||
      <listitem><para>If you initially deployed your <package>matrix-synapse</package> on
 | 
						||
       <literal>nixos-unstable</literal> <emphasis>after</emphasis> the <literal>19.09</literal>-release,
 | 
						||
       your database is misconfigured due to a regression in NixOS. For now, <package>matrix-synapse</package> will
 | 
						||
       startup with a warning, but it's recommended to reconfigure the database to set the values
 | 
						||
       <literal>LC_COLLATE</literal> and <literal>LC_CTYPE</literal> to
 | 
						||
       <link xlink:href="https://www.postgresql.org/docs/12/locale.html"><literal>'C'</literal></link>.
 | 
						||
      </para></listitem>
 | 
						||
     </itemizedlist>
 | 
						||
    </para>
 | 
						||
   </listitem>
 | 
						||
  </itemizedlist>
 | 
						||
 </section>
 | 
						||
</section>
 |