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* Release notes.

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Eelco Dolstra 2009-04-14 12:02:22 +00:00
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doc/manual/release-notes.xml
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<!--==================================================================-->
<section xml:id="ssec-relnotes-0.13"><title>Release 0.13 (April NN,
2009)</title>
<para>This is primarily a bug fix release. It has some new
features:</para>
<itemizedlist>
<listitem>
<para>Support for Nix channels generated by Hydra, the Nix-based
continuous build system. (Hydra generates NAR archives on the
fly, so the size and hash of these archives isn’t known in
advance.)</para>
</listitem>
<listitem>
<para>Support <literal>i686-linux</literal> builds directly on
<literal>x86_64-linux</literal> Nix installations. This is
implemented using the <function>personality()</function> syscall,
which causes <command>uname</command> to return
<literal>i686</literal> in child processes.</para>
</listitem>
<listitem>
<para>Various improvements to the <literal>chroot</literal>
support. Building in a <literal>chroot</literal> works quite well
now.</para>
</listitem>
<listitem>
<para>Nix no longer blocks if it tries to build a path and another
process is already building the same path. Instead it tries to
build another buildable path first. This improves
parallelism.</para>
</listitem>
<listitem>
<para>Support for large (> 4 GiB) files in NAR archives.</para>
</listitem>
<listitem>
<para>Various (performance) improvements to the remote build
mechanism.</para>
</listitem>
<listitem>
<para>New primops: <varname>builtins.addErrorContext</varname> (to
add a string to stack traces — useful for debugging),
<varname>builtins.isBool</varname>,
<varname>builtins.isString</varname>,
<varname>builtins.isInt</varname>.</para>
</listitem>
</itemizedlist>
</section>
<!--==================================================================-->
<section xml:id="ssec-relnotes-0.12"><title>Release 0.12 (November 20,