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<?xml version="1.0" encoding="ISO-8859-1"?>
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head><!--
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<title>Overview of new features in Apache 2.2 - Apache HTTP Server</title>
<link href="./style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<p class="menu"><a href="./mod/">Modules</a> | <a href="./mod/directives.html">Directives</a> | <a href="./faq/">FAQ</a> | <a href="./glossary.html">Glossary</a> | <a href="./sitemap.html">Sitemap</a></p>
<p class="apache">Apache HTTP Server Version 2.1</p>
<img alt="" src="./images/feather.gif" /></div>
<div class="up"><a href="./"><img title="<-" alt="<-" src="./images/left.gif" /></a></div>
<div id="path">
<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs-project/">Documentation</a> > <a href="./">Version 2.1</a></div><div id="page-content"><div id="preamble"><h1>Overview of new features in Apache 2.2</h1>
<div class="toplang">
<p><span>Available Languages: </span><a href="./en/new_features_2_2.html" title="English"> en </a></p>
</div>
<p>This document describes some of the major changes between the
2.0 and 2.2 versions of the Apache HTTP Server. For new features since
version 1.3, see the <a href="new_features_2_0.html">2.0 new features</a>
document.</p>
</div>
<div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#core">Core Enhancements</a></li>
<li><img alt="" src="./images/down.gif" /> <a href="#module">Module Enhancements</a></li>
<li><img alt="" src="./images/down.gif" /> <a href="#developer">Module Developer Changes</a></li>
</ul></div>
<div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
<div class="section">
<h2><a name="core" id="core">Core Enhancements</a></h2>
<dl>
<dt>Authn/Authz</dt>
<dd>...</dd>
<dt>Caching</dt>
<dd>...</dd>
<dt>Proxying</dt>
<dd>The new <code class="module"><a href="./mod/mod_proxy_balancer.html">mod_proxy_balancer</a></code> module provides
load balancing services for <code class="module"><a href="./mod/mod_proxy.html">mod_proxy</a></code>.
The new <code class="module"><a href="./mod/mod_proxy_ajp.html">mod_proxy_ajp</a></code> module adds support for the
<code>Apache JServ Protocol version 1.3</code> used by
<a href="http://jakarta.apache.org/tomcat/">Apache Tomcat</a>.</dd>
<dt>Smart Filters</dt>
<dd>...</dd>
</dl>
</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
<div class="section">
<h2><a name="module" id="module">Module Enhancements</a></h2>
<dl>
<dt><code class="module"><a href="./mod/mod_authnz_ldap.html">mod_authnz_ldap</a></code></dt>
<dd>This module is a port of the 2.0
<code>mod_auth_ldap</code> module to the 2.2 <code>Authn/Authz</code>
framework. New features include using LDAP attribute values and
complicated search filters in the
<code class="directive"><a href="./mod/core.html#require">Require</a></code> directive.</dd>
<dt><code class="module"><a href="./mod/mod_info.html">mod_info</a></code></dt>
<dd>Added a new <code>?config</code> argument which will show
the configuration directives as parsed by Apache, including
their file name and line number. The module also
shows the order of all request hooks and additional
build information, similar to <code>httpd -V</code>.</dd>
</dl>
</div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
<div class="section">
<h2><a name="developer" id="developer">Module Developer Changes</a></h2>
<dl>
<dt>APR 1.0 API</dt>
<dd>Apache 2.2 uses the APR 1.0 API. All depreciated functions and
symbols have been removed from <code>APR</code> and
<code>APR-Util</code>. For details, see the
<a href="http://apr.apache.org/">APR Website</a>.</dd>
<dt>Connection Error Logging</dt>
<dd>A new function, <code>ap_log_cerror</code> has been added to log
errors that occure with the client's connection. When logged,
the message includes the client IP address.</dd>
<dt>Test Configuration Hook Added</dt>
<dd>A new hook, <code>test_config</code> has been added to aid
modules that want to execute special code only when the user passes
<code>-t</code> to httpd.</dd>
<dt>Set Threaded MPM's Stacksize</dt>
<dd>A new directive, <code>ThreadStackSize</code> has been added to
set the stack size on all threaded MPMs. This is required
for some third-party modules on platforms with small default
thread stack size.</dd>
</dl>
</div></div>
<div class="bottomlang">
<p><span>Available Languages: </span><a href="./en/new_features_2_2.html" title="English"> en </a></p>
</div><div id="footer">
<p class="apache">Copyright 1999-2004 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
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