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home-manager/doc/release-notes/rl-1903.xml
2019-04-23 22:02:29 +02:00

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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-19.03">
<title>Release 19.03</title>
<para>
The 19.03 release branch became the stable branch in April, 2019.
</para>
<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-19.03-highlights">
<title>Highlights</title>
<para>
This release has the following notable changes:
</para>
<itemizedlist>
<listitem>
<para>
The <option>home.file.&lt;name?&gt;.source</option> now allows source
files to be hidden, that is, having a name starting with the
<literal>.</literal> character. It also allows the source file name to
contain characters not typically allowed for Nix store paths. For example,
your configuration can now contain things such as
<programlisting>
home.file."my file".source = ./. + "/file with spaces!";
</programlisting>
</para>
</listitem>
<listitem>
<para>
The type used for the systemd unit options under
<option>systemd.user.services</option>,
<option>systemd.user.sockets</option>, etc. has been changed to offer more
robust merging of configurations. If you don't override values within
systemd units then you are not affected by this change. Unfortunately, if
you do override unit values you may encounter errors.
</para>
<para>
In particular, if you get an error saying that a <quote>unique
option</quote> is <quote>defined multiple times</quote> then you need to
use the
<code xlink:href="https://nixos.org/nixos/manual/#sec-option-definitions-setting-priorities">mkForce</code>
function. For example,
<programlisting language="nix">
systemd.user.services.foo.Service.ExecStart = "/foo/bar";
</programlisting>
becomes
<programlisting language="nix">
systemd.user.services.foo.Service.ExecStart = lib.mkForce "/foo/bar";
</programlisting>
We had to make this change because the old merging was causing too many
confusing situations for people.
</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-19.03-state-version-changes">
<title>State Version Changes</title>
<para>
The state version in this release includes the changes below. These changes
are only active if the <option>home.stateVersion</option> option is set to
"19.03" or later.
</para>
<itemizedlist>
<listitem>
<para>
There is now an option <option>programs.beets.enable</option> that
defaults to <literal>false</literal>. Before the module would be active if
the <option>programs.beets.settings</option> option was non-empty.
</para>
</listitem>
</itemizedlist>
</section>
</section>