nixpkgs/nixos/doc/manual/release-notes/rl-1909.xml

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         version="5.0"
         xml:id="sec-release-19.09">
 <title>Release 19.09 (“Loris”, 2019/09/??)</title>

 <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-19.09-highlights">
  <title>Highlights</title>

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

  <itemizedlist>
   <listitem>
    <para>
     End of support is planned for end of April 2020, handing over to 20.03.
    </para>
   </listitem>
  </itemizedlist>
 </section>

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         xmlns:xlink="http://www.w3.org/1999/xlink"
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         version="5.0"
         xml:id="sec-release-19.09-new-services">
  <title>New Services</title>

  <para>
   The following new services were added since the last release:
  </para>

 </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-19.09-incompatibilities">
  <title>Backward Incompatibilities</title>

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

  <itemizedlist>
   <listitem>
    <para>
     Buildbot no longer supports Python 2, as support was dropped upstream in
     version 2.0.0. Configurations may need to be modified to make them
     compatible with Python 3.
    </para>
   </listitem>
   <listitem>
    <para>
     PostgreSQL now uses
     <filename class="directory">/run/postgresql</filename> as its socket
     directory instead of <filename class="directory">/tmp</filename>. So
     if you run an application like eg. Nextcloud, where you need to use
     the Unix socket path as the database host name, you need to change it
     accordingly.
    </para>
   </listitem>
   <listitem>
    <para>
      The options <option>services.prometheus.alertmanager.user</option> and
      <option>services.prometheus.alertmanager.group</option> have been removed
      because the alertmanager service is now using systemd's <link
      xlink:href="http://0pointer.net/blog/dynamic-users-with-systemd.html">
      DynamicUser mechanism</link> which obviates these options.
    </para>
   </listitem>
   <listitem>
    <para>
      The NetworkManager systemd unit was renamed back from network-manager.service to
      NetworkManager.service for better compatibility with other applications expecting this name.
      The same applies to ModemManager where modem-manager.service is now called ModemManager.service again.
    </para>
   </listitem>
   <listitem>
    <para>
      The <option>services.nzbget.configFile</option> and <option>services.nzbget.openFirewall</option>
      options were removed as they are managed internally by the nzbget. The
      <option>services.nzbget.dataDir</option> option hadn't actually been used by
      the module for some time and so was removed as cleanup.
    </para>
   </listitem>
   <listitem>
    <para>
      The <option>services.mysql.pidDir</option> option was removed, as it was only used by the wordpress
      apache-httpd service to wait for mysql to have started up.
      This can be accomplished by either describing a dependency on mysql.service (preferred)
      or waiting for the (hardcoded) <filename>/run/mysqld/mysql.sock</filename> file to appear.
    </para>
   </listitem>
   <listitem>
    <para>
      The <option>services.emby.enable</option> module has been removed, see
      <option>services.jellyfin.enable</option> instead for a free software fork of Emby.

      See the Jellyfin documentation:
      <link xlink:href="https://jellyfin.readthedocs.io/en/latest/administrator-docs/migrate-from-emby/">
        Migrating from Emby to Jellyfin
      </link>
    </para>
   </listitem>
   <listitem>
     <para>
     IPv6 Privacy Extensions are now enabled by default for undeclared
     interfaces. The previous behaviour was quite misleading — even though
     the default value for
     <option>networking.interfaces.*.preferTempAddress</option> was
     <literal>true</literal>, undeclared interfaces would not prefer temporary
     addresses. Now, interfaces not mentioned in the config will prefer
     temporary addresses. EUI64 addresses can still be set as preferred by
     explicitly setting the option to <literal>false</literal> for the
     interface in question.
    </para>
   </listitem>
   <listitem>
    <para>
     Since Bittorrent Sync was superseded by Resilio Sync in 2016, the
     <literal>bittorrentSync</literal>, <literal>bittorrentSync14</literal>,
     and <literal>bittorrentSync16</literal> packages have been removed in
     favor of <literal>resilio-sync</literal>.
    </para>
    <para>
     The corresponding module, <option>services.btsync</option> has been
     replaced by the <option>services.resilio</option> module.
    </para>
   </listitem>
   <listitem>
    <para>
      The limesurvey apache subservice was replaced with a full NixOS module.
      One can configure it using the <option>services.limesurvey.enable</option>
      and <option>services.limesurvey.virtualHost</option> options.
    </para>
   </listitem>
  </itemizedlist>
 </section>

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         xmlns:xi="http://www.w3.org/2001/XInclude"
         version="5.0"
         xml:id="sec-release-19.09-notable-changes">
  <title>Other Notable Changes</title>

  <itemizedlist>
   <listitem>
    <para>
     The <option>documentation</option> module gained an option named
     <option>documentation.nixos.includeAllModules</option> which makes the
     generated <citerefentry>
     <refentrytitle>configuration.nix</refentrytitle>
     <manvolnum>5</manvolnum></citerefentry> manual page include all options
     from all NixOS modules included in a given
     <literal>configuration.nix</literal> configuration file. Currently, it is
     set to <literal>false</literal> by default as enabling it frequently
     prevents evaluation. But the plan is to eventually have it set to
     <literal>true</literal> by default. Please set it to
     <literal>true</literal> now in your <literal>configuration.nix</literal>
     and fix all the bugs it uncovers.
    </para>
   </listitem>
   <listitem>
    <para>
     The <literal>vlc</literal> package gained support for Chromecast
     streaming, enabled by default. TCP port 8010 must be open for it to work,
     so something like <literal>networking.firewall.allowedTCPPorts = [ 8010
     ];</literal> may be required in your configuration. Also consider enabling
     <link xlink:href="https://nixos.wiki/wiki/Accelerated_Video_Playback">
     Accelerated Video Playback</link> for better transcoding performance.
    </para>
   </listitem>
   <listitem>
    <para>
     The following changes apply if the <literal>stateVersion</literal> is
     changed to 19.09 or higher. For <literal>stateVersion = "19.03"</literal>
     or lower the old behavior is preserved.
    </para>
    <itemizedlist>
     <listitem>
      <para>
       <literal>solr.package</literal> defaults to
       <literal>pkgs.solr_8</literal>.
      </para>
     </listitem>
    </itemizedlist>
   </listitem>
   <listitem>
    <para>
      The <literal>hunspellDicts.fr-any</literal> dictionary now ships with <literal>fr_FR.{aff,dic}</literal>
      which is linked to <literal>fr-toutesvariantes.{aff,dic}</literal>.
    </para>
  </listitem>
  <listitem>
    <para>
      The <literal>mysql</literal> service now runs as <literal>mysql</literal>
      user. Previously, systemd did execute it as root, and mysql dropped privileges
      itself.
      This includes <literal>ExecStartPre=</literal> and
      <literal>ExecStartPost=</literal> phases.
      To accomplish that, runtime and data directory setup was delegated to
      RuntimeDirectory and tmpfiles.
    </para>
   </listitem>
  </itemizedlist>
 </section>
</section>