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<title>Recoll 1.23 series release notes</title>
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<h1>Release notes for Recoll 1.23.x</h1>
<h2>Caveats</h2>
<p><em>Installing over an older version</em>: 1.19-21 </p>
<p>Some of the input handlers were converted from shell scripts
to Python programs, and some helper dependancies changed. For
example, you will need to install python-libxml2 and
python-libxslt1 in most cases (for replacing xsltproc).</p>
<p>1.20-23 indexes are fully compatible. Installing 1.23
over an 1.19 index is possible, but there have been small
changes in the way compound words (e.g. email addresses) are
indexed, so it will be best to reset the index. Still, in a
pinch, 1.23 search can mostly use an 1.19 index. </p>
<p>Always reset the index if you do not know by which version it
was created (e.g.: you're not sure it's at least 1.18). The
best method is to quit all Recoll programs and delete the
index directory (<span class="literal">
rm��-rf��~/.recoll/xapiandb</span>), then start <code>recoll</code>
or <code>recollindex</code>. <br>
<span class="literal">recollindex -z</span> will do the same
in most, but not all, cases. It's better to use
the <tt>rm</tt> method, which will also ensure that no debris
from older releases remain (e.g.: old stemming files which are
not used any more).</p>
<p>Case/diacritics sensitivity is off by default. It can be
turned on <em>only</em> by editing
recoll.conf (
<a href="usermanual/usermanual.html#RCL.INDEXING.CONFIG.SENS">
see the manual</a>). If you do so, you must then reset the
index.</p>
<h2>Changes in Recoll 1.23.0</h2>
<p>Recoll 1.23 has few user-visible changes. The release was
created mostly because some of the minor feature changes are
critical from some niche Recoll uses (e.g.: the improved audio
file properties indexing), and because the changes to the
logging system were too extensive for a minor version.</p>
<ul>
<li>Input handler for ODF flat XML file formats.</li>
<li>Configuration: some list configuration variables,
namely <tt>skippedNames</tt>, <tt>noContentSuffixes</tt>,
and <tt>xallexcepts</tt>, have acquired variants suffixed
with <tt>+</tt> or <tt>-</tt> for adding or removing
values from the default value, which is a longish list,
which hence does not need to be copied for modification any
more.</li>
<li>New <tt>nomd5types</tt> variable for listing types of
files for which we should not compute an MD5 hash (used for
duplicates detection). See the manual for details. The
default list excludes the audio file types.</li>
<li>Unicode BOM detection for text files</li>
<li>Allow using full CSS style for term highlighting, not just
color.</li>
<li>Internal only: the code now uses some C++11 features
(e.g. std::threads, std::mutex) to replace home-grown
hacks. In consequence, a C++11 compiler is now required for
building. Also C++ streams are used for logging.</li>
<li><em>execm</em> input handlers now have an alternate method
to set metadata fields, easier than HTML meta fields.</li>
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