<?xml version="1.0" encoding="UTF-8"?>
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! Copyright 2011-2012 ForgeRock AS
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<chapter xml:id='chap-compatibility'
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xmlns='http://docbook.org/ns/docbook' version='5.0' xml:lang='en'
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xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
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xsi:schemaLocation='http://docbook.org/ns/docbook http://docbook.org/xml/5.0/xsd/docbook.xsd'
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xmlns:xlink='http://www.w3.org/1999/xlink'
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xmlns:xinclude='http://www.w3.org/2001/XInclude'>
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<title>OpenDJ Compatibility</title>
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<para>This chapter covers both major changes to existing functionality, and
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also deprecated and removed functionality.</para>
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<section xml:id="changed-functionality">
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<title>Major Changes to Existing Functionality</title>
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<para>OpenDJ <?eval ${docTargetVersion}?> improves on earlier releases
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introducing many new features and important fixes without major,
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backwards-incompatible changes. Take the following into account,
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however.</para>
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<itemizedlist>
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<listitem>
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<para>When upgrading from 2.4.4 or earlier, after you upgrade but before
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you restart OpenDJ, you must rebuild the <literal>ds-sync-hist</literal>
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index.</para>
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</listitem>
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<listitem>
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<para>The default DB cache size is now 50%, rather than 10%.</para>
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<para>If you have multiple backends, configure cache sizes
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accordingly.</para>
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</listitem>
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<listitem>
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<para>The number of LDAP request handlers now defaults to half the CPU
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count.</para>
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</listitem>
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<listitem>
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<para>The replication purge delay default has increased from one day to
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three days.</para>
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</listitem>
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<listitem>
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<para>Syntax checking has been added for certificate and country attribute
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values. This affects applications updating those attribute values.
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Applications updating country attribute values must now use Country String
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syntax for example, which uses two-character codes from <link
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xlink:show="new" xlink:href="http://www.iso.org/iso/country_codes.htm">ISO
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3166</link> such as <literal>US</literal> instead of full names such as
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<literal>United States</literal>.</para>
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</listitem>
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</itemizedlist>
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<!-- Not yet for OpenDJ 2.5.
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<para>The <command>ldif-diff</command> command has been renamed
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<command>ldifdiff</command>, and the <option>-\-outputLDIF</option>,
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<option>-\-overwriteExisting</option>, <option>-\-sourceLDIF</option>,
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<option>-\-targetLDIF</option> options have been dropped in favor of a
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format closer to that of the <command>diff</command> command.</para>
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-->
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</section>
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<section xml:id="deprecated-functionality">
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<title>Deprecated Functionality</title>
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<para>OpenDJ <?eval ${docTargetVersion}?> makes use of new environment
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variables aligned with the project name to use <literal>OPENDJ</literal>.
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Use of the old variables is deprecated. The old variables are likely to be
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removed in a future release.</para>
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</section>
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<section xml:id="removed-functionality">
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<title>Removed Functionality</title>
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<para>No functionality has been removed in OpenDJ
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<?eval ${docTargetVersion}?>.</para>
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<para>No functionality is planned to be removed at this time.</para>
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</section>
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</chapter>
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