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7 Licensed to the Apache Software Foundation (ASF) under one or more
8 contributor license agreements. See the NOTICE file distributed with
9 this work for additional information regarding copyright ownership.
10 The ASF licenses this file to You under the Apache License, Version 2.0
11 (the "License"); you may not use this file except in compliance with
12 the License. You may obtain a copy of the License at
14 http://www.apache.org/licenses/LICENSE-2.0
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18 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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23 <manualpage metafile="new_features_2_4.xml.meta">
25 <title>Overview of new features in Apache 2.4</title>
28 <p>This document describes some of the major changes between the
29 2.2 and 2.4 versions of the Apache HTTP Server. For new features since
30 version 2.0, see the <a href="new_features_2_2.html">2.2 new features</a>
35 <title>Core Enhancements</title>
41 <title>Module Enhancements</title>
47 <section id="programs">
48 <title>Program Enhancements</title>
53 <section id="developer">
54 <title>Module Developer Changes</title>
56 <dt>Check Configuration Hook Added</dt>
58 <dd>A new hook, <code>check_config</code>, has been added which runs
59 between the <code>pre_config</code> and <code>open_logs</code>
60 hooks. It also runs before the <code>test_config</code> hook
61 when the <code>-t</code> option is passed to
62 <program>httpd</program>. The <code>check_config</code> hook
63 allows modules to review interdependent configuration directive
64 values and adjust them while messages can still be logged to the
65 console. The user can thus be alerted to misconfiguration problems
66 before the core <code>open_logs</code> hook function redirects
67 console output to the error log.</dd>