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<title>Recoll 1.18 series release notes</title>
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<h1>Release notes for Recoll 1.18.x</h1>
<h2>Caveats</h2>
<p><em>Installing over an older version</em>: 1.18 introduces serious
index formats changes, and it will be advisable to reset the
index in most cases. IF the 1.18 index is not configured for
case and diacritics sensitivity, it is mostly compatible with
1.17 indexes though. Case/diacritics sensitivity can be turned
off either by a compile flag or a configuration variable, and
the default is still a stripped index (so, mostly compatible
with 1.17). If you activate case and diacritics sensitivity,
you must reset the index.</p>
<p>Always reset the index if installing over an older version (1.14
and older). The simplest way to do this is to quit all recoll
programs and just delete the index directory (<span
class="literal">rm -rf ~/.recoll/xapiandb</span>), then
start recoll or recollindex. <span
class="literal">recollindex -z</span> will do the same in most
cases.</p>
<p>Some new, auxiliary, features do require a full reindex to work:</p>
<ul>
<li>The file size filtering functions (for an index created by
1.16 or older).</li>
<li>The anchored search feature if the index was created by
release 1.15 or older.</li>
</ul>
<h2>Changes</h2>
<p>Recoll 1.18 has some major changes 1.17, the most visible of
which is the ability to consider character case and diacritics
when searching.</p>
<p>Recoll 1.18.0 changes:</p>
<ul>
<li>The index can now be configured for case and diacritics
sensitivity. Raw terms are indexed, and query time expansions
are used when search insensitivity is designed (in a similar
manner to what is used for stemming). See the chapter
manual for details about controlling the feature.</li>
<li>More effort is put in choosing the terms used in
generating the snippets inside the result list.</li>
<li>Capacity to store page breaks and use them when opening a
document.</li>
<li>Capacity to pass a search string to the native app.</li>
<li>New "snippets" window for documents with page numbers, let
the user choose a snippet and open the document at the
appropriate page.</li>
<li>We now use the Xapian "synonyms" mechanism to store all
data about stemming, case, and diacritics expansion (this
replace the previous ad-hoc stemming expansion mechanism).</li>
<li>New script to start/stop recollindex according to mains
power status.</li>
<li>Add <pre style="white-space: pre-wrap"> to plain
text HTML display options.</li>
<li>Allow multiple directory specifications in the query
language, as in: <i>dir:/home/me -dir:tmp</i></li>
<li>Improved search in the preview window, allows selecting
one of the initial search clauses from a list.</li>
<li>Fixed bugs:
<ul>
<li>The unac_except_trans mechanism could be buggy in some
cases and generate wrong character translations.</li>
<li>Don't terminate monitor for permissions-related
addwatch error.</li>
<li>Fix handling of ODF documents exported by Google
docs.</li>
</ul>
</li>
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