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* Begin release notes.

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Eelco Dolstra 2005-12-15 21:11:55 +00:00
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doc/manual/release-notes.xml
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<article><title>Nix Release Notes</title> <article><title>Nix Release Notes</title>
<section><title>Release 0.10 (TBA)</title>
<note><para>This version of Nix uses Berkeley DB 4.4 instead of 4.3.
The database is upgraded automatically, but you should be careful not
to use old versions of Nix that still use Berkeley DB 4.3. In
particular, if you use a Nix installed through Nix, you should run
<screen>
$ nix-store --clear-substitutes</screen>
first.</para></note>
<warning><para>Also, the database schema has changed slighted to fix a
performance issue (see below). When you run any Nix 0.10 command for
the first time, the database will be upgraded automatically. This is
irreversible.</para></warning>
<itemizedlist>
<listitem><para>An option <option>--compare-versions</option> (or
<option>-c</option>) has been added to <command>nix-env
--query</command> to allow you to compare installed versions of
packages to available versions, or vice versa. An easy way to see
if you are up to date with what’s in the channel is <literal>nix-env
-qc</literal>.</para></listitem>
<listitem><para>TODO: shared stores.</para></listitem>
<listitem><para>A performance issue has been fixed with the
<literal>referer</literal> table, which stores the inverse of the
<literal>references</literal> table (i.e., it tells you what store
paths refer to a given path). Maintaining this table could take a
quadratic amount of time, as well as a quadratic amount of Berkeley
DB log file space (in particular when running the garbage
collector).</para></listitem>
<listitem><para>Nix now catches the <literal>TERM</literal> and
<literal>HUP</literal> signals in addition to the
<literal>INT</literal> signal. So you can now do a <literal>killall
nix-store</literal> without triggering a database
recovery.</para></listitem>
<listitem><para>Reference scanning (which happens after each build)
is much faster.</para></listitem>
</itemizedlist>
</section>
<section><title>Release 0.9.2 (September 21, 2005)</title> <section><title>Release 0.9.2 (September 21, 2005)</title>
<para>This bug fix release fixes two problems on Mac OS X: <para>This bug fix release fixes two problems on Mac OS X: