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<section xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="sec-release-22.05">
<title>Release 22.05 (“Quokka”, 2022.05/??)</title>
<para>
In addition to numerous new and upgraded packages, this release has
the following highlights:
</para>
<itemizedlist spacing="compact">
<listitem>
<para>
Support is planned until the end of December 2022, handing over
to 22.11.
</para>
</listitem>
</itemizedlist>
<section xml:id="sec-release-22.05-highlights">
<title>Highlights</title>
<itemizedlist spacing="compact">
<listitem>
<para>
PHP 8.1 is now available
</para>
</listitem>
</itemizedlist>
</section>
<section xml:id="sec-release-22.05-new-services">
<title>New Services</title>
<itemizedlist>
<listitem>
<para>
<link xlink:href="https://github.com/intel/linux-sgx#install-the-intelr-sgx-psw">aesmd</link>,
the Intel SGX Architectural Enclave Service Manager. Available
as
<link linkend="opt-services.aesmd.enable">services.aesmd</link>.
</para>
</listitem>
<listitem>
<para>
<link xlink:href="https://www.elastic.co/guide/en/beats/filebeat/current/filebeat-overview.html">filebeat</link>,
a lightweight shipper for forwarding and centralizing log
data. Available as
<link linkend="opt-services.filebeat.enable">services.filebeat</link>.
</para>
</listitem>
<listitem>
<para>
<link xlink:href="https://github.com/ngoduykhanh/PowerDNS-Admin">PowerDNS-Admin</link>,
a web interface for the PowerDNS server. Available at
<link xlink:href="options.html#opt-services.powerdns-admin.enable">services.powerdns-admin</link>.
</para>
</listitem>
<listitem>
<para>
<link xlink:href="https://maddy.email">maddy</link>, a
composable all-in-one mail server. Available as
<link xlink:href="options.html#opt-services.maddy.enable">services.maddy</link>.
</para>
</listitem>
</itemizedlist>
</section>
<section xml:id="sec-release-22.05-incompatibilities">
<title>Backward Incompatibilities</title>
<itemizedlist>
<listitem>
<para>
<literal>pkgs.ghc</literal> now refers to
<literal>pkgs.targetPackages.haskellPackages.ghc</literal>.
This <emphasis>only</emphasis> makes a difference if you are
cross-compiling and will ensure that
<literal>pkgs.ghc</literal> always runs on the host platform
and compiles for the target platform (similar to
<literal>pkgs.gcc</literal> for example).
<literal>haskellPackages.ghc</literal> still behaves as
before, running on the build platform and compiling for the
host platform (similar to <literal>stdenv.cc</literal>). This
means you don’t have to adjust your derivations if you use
<literal>haskellPackages.callPackage</literal>, but when using
<literal>pkgs.callPackage</literal> and taking
<literal>ghc</literal> as an input, you should now use
<literal>buildPackages.ghc</literal> instead to ensure cross
compilation keeps working (or switch to
<literal>haskellPackages.callPackage</literal>).
</para>
</listitem>
<listitem>
<para>
<literal>pkgs.emacsPackages.orgPackages</literal> is removed
because org elpa is deprecated. The packages in the top level
of <literal>pkgs.emacsPackages</literal>, such as org and
org-contrib, refer to the ones in
<literal>pkgs.emacsPackages.elpaPackages</literal> and
<literal>pkgs.emacsPackages.nongnuPackages</literal> where the
new versions will release.
</para>
</listitem>
<listitem>
<para>
The <literal>wafHook</literal> hook now honors
<literal>NIX_BUILD_CORES</literal> when
<literal>enableParallelBuilding</literal> is not set
explicitly. Packages can restore the old behaviour by setting
<literal>enableParallelBuilding=false</literal>.
</para>
</listitem>
<listitem>
<para>
<literal>pkgs.claws-mail-gtk2</literal>, representing Claws
Mail’s older release version three, was removed in order to
get rid of Python 2. Please switch to
<literal>claws-mail</literal>, which is Claws Mail’s latest
release based on GTK+3 and Python 3.
</para>
</listitem>
<listitem>
<para>
The <literal>writers.writePython2</literal> and corresponding
<literal>writers.writePython2Bin</literal> convenience
functions to create executable Python 2 scripts in the store
were removed in preparation of removal of the Python 2
interpreter. Scripts have to be converted to Python 3 for use
with <literal>writers.writePython3</literal> or
<literal>writers.writePyPy2</literal> needs to be used.
</para>
</listitem>
<listitem>
<para>
If you previously used
<literal>/etc/docker/daemon.json</literal>, you need to
incorporate the changes into the new option
<literal>virtualisation.docker.daemon.settings</literal>.
</para>
</listitem>
</itemizedlist>
</section>
<section xml:id="sec-release-22.05-notable-changes">
<title>Other Notable Changes</title>
<itemizedlist>
<listitem>
<para>
The option
<link linkend="opt-services.redis.servers">services.redis.servers</link>
was added to support per-application
<literal>redis-server</literal> which is more secure since
Redis databases are only mere key prefixes without any
configuration or ACL of their own. Backward-compatibility is
preserved by mapping old
<literal>services.redis.settings</literal> to
<literal>services.redis.servers."".settings</literal>,
but you are strongly encouraged to name each
<literal>redis-server</literal> instance after the application
using it, instead of keeping that nameless one. Except for the
nameless
<literal>services.redis.servers.""</literal> still
accessible at <literal>127.0.0.1:6379</literal>, and to the
members of the Unix group <literal>redis</literal> through the
Unix socket <literal>/run/redis/redis.sock</literal>, all
other <literal>services.redis.servers.${serverName}</literal>
are only accessible by default to the members of the Unix
group <literal>redis-${serverName}</literal> through the Unix
socket <literal>/run/redis-${serverName}/redis.sock</literal>.
</para>
</listitem>
<listitem>
<para>
The
<literal>writers.writePyPy2</literal>/<literal>writers.writePyPy3</literal>
and corresponding
<literal>writers.writePyPy2Bin</literal>/<literal>writers.writePyPy3Bin</literal>
convenience functions to create executable Python 2/3 scripts
using the PyPy interpreter were added.
</para>
</listitem>
<listitem>
<para>
The <literal>influxdb2</literal> package was split into
<literal>influxdb2-server</literal> and
<literal>influxdb2-cli</literal>, matching the split that took
place upstream. A combined <literal>influxdb2</literal>
package is still provided in this release for backwards
compatibilty, but will be removed at a later date.
</para>
</listitem>
<listitem>
<para>
The <literal>services.unifi.openPorts</literal> option default
value of <literal>true</literal> is now deprecated and will be
changed to <literal>false</literal> in 22.11. Configurations
using this default will print a warning when rebuilt.
</para>
</listitem>
<listitem>
<para>
The option
<link linkend="opt-services.ssh.enableAskPassword">services.ssh.enableAskPassword</link>
was added, decoupling the setting of
<literal>SSH_ASKPASS</literal> from
<literal>services.xserver.enable</literal>. This allows easy
usage in non-X11 environments, e.g. Wayland.
</para>
</listitem>
<listitem>
<para>
The <literal>services.stubby</literal> module was converted to
a
<link xlink:href="https://github.com/NixOS/rfcs/blob/master/rfcs/0042-config-option.md">settings-style</link>
configuration.
</para>
</listitem>
</itemizedlist>
</section>
</section>
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