|  | <?xml version="1.0" encoding="UTF-8"?> | 
|  | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> | 
|  | <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head> | 
|  | <meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> | 
|  | <!-- | 
|  | XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX | 
|  | This file is generated from xml source: DO NOT EDIT | 
|  | XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX | 
|  | --> | 
|  | <title>API Changes in Apache HTTP Server 2.6 since 2.4 - Apache HTTP Server Version 2.5</title> | 
|  | <link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> | 
|  | <link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> | 
|  | <link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> | 
|  | <script src="../style/scripts/prettify.min.js" type="text/javascript"> | 
|  | </script> | 
|  |  | 
|  | <link href="../images/favicon.png" rel="shortcut icon" /></head> | 
|  | <body id="manual-page"><div id="page-header"> | 
|  | <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p> | 
|  | <p class="apache">Apache HTTP Server Version 2.5</p> | 
|  | <img alt="" src="../images/feather.png" /></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/">Documentation</a> > <a href="../">Version 2.5</a></div><div id="page-content"><div id="preamble"><h1>API Changes in Apache HTTP Server 2.6 since 2.4</h1> | 
|  | <div class="toplang"> | 
|  | <p><span>Available Languages: </span><a href="../en/developer/new_api_2_6.html" title="English"> en </a></p> | 
|  | </div> | 
|  |  | 
|  | <p>This document describes changes to the Apache HTTPD API from | 
|  | version 2.4 to 2.6, that may be of interest to module/application | 
|  | developers and core hacks.  As of the first GA release of the | 
|  | 2.6 branch API compatibility is preserved for the life of the | 
|  | 2.6 branch.  (The | 
|  | <a href="http://svn.apache.org/repos/asf/httpd/httpd/branches/2.6.x/VERSIONING">VERSIONING</a> | 
|  | description for the 2.6 release provides more information about API | 
|  | compatibility.)</p> | 
|  |  | 
|  | <p>API changes fall into two categories: APIs that are altogether new, | 
|  | and existing APIs that are expanded or changed.  The latter are | 
|  | further divided into those where all changes are backwards-compatible | 
|  | (so existing modules can ignore them), and those that might | 
|  | require attention by maintainers.  As with the transition from | 
|  | HTTPD 2.2 to 2.4, existing modules and applications will require | 
|  | recompiling and may call for some attention, but most should not | 
|  | require any substantial updating (although some may be able to | 
|  | take advantage of API changes to offer significant improvements).</p> | 
|  | <p>For the purpose of this document, the API is split according | 
|  | to the public header files.  These headers are themselves the | 
|  | reference documentation, and can be used to generate a browsable | 
|  | HTML reference with <code>make docs</code>.</p> | 
|  | </div> | 
|  | <div id="quickview"><ul id="toc"><li><img alt="" src="../images/down.gif" /> <a href="#api_changes">Changed APIs</a></li> | 
|  | <li><img alt="" src="../images/down.gif" /> <a href="#upgrading">Specific information on upgrading modules from 2.4</a></li> | 
|  | </ul><h3>See also</h3><ul class="seealso"><li><a href="#comments_section">Comments</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="api_changes" id="api_changes">Changed APIs</a> <a title="Permanent link" href="#api_changes" class="permalink">¶</a></h2> | 
|  |  | 
|  |  | 
|  | <h3><a name="ap_fill_me_in" id="ap_fill_me_in">ap_fill_me_in (NEW!)</a></h3> | 
|  |  | 
|  | <p>Introduces a new API to fill me in.</p> | 
|  |  | 
|  |  | 
|  | <h3><a name="http_request" id="http_request">http_request (changed)</a></h3> | 
|  |  | 
|  | <ul> | 
|  | <li>New autht_provider API</li> | 
|  | <li>New <code>token_checker</code> hook to handle authentication based on | 
|  | mechanisms other than username and password.</li> | 
|  | <li>New function <code>ap_hook_check_autht</code>, as an addition to | 
|  | <code>ap_hook_check_authn</code> and <code>ap_hook_check_authz</code>.</li> | 
|  | </ul> | 
|  |  | 
|  |  | 
|  | <h3><a name="mod_auth" id="mod_auth">mod_auth (changed)</a></h3> | 
|  |  | 
|  | <p>Adds an additional provider framework for autht - token authentication.</p> | 
|  |  | 
|  |  | 
|  | </div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> | 
|  | <div class="section"> | 
|  | <h2><a name="upgrading" id="upgrading">Specific information on upgrading modules from 2.4</a> <a title="Permanent link" href="#upgrading" class="permalink">¶</a></h2> | 
|  |  | 
|  |  | 
|  | <h3><a name="upgrading_fillmein" id="upgrading_fillmein">Fill me in</a></h3> | 
|  |  | 
|  | <p>In order to take advantage of fill me in.</p> | 
|  |  | 
|  |  | 
|  | <h3><a name="upgrading_byfunction" id="upgrading_byfunction">If your module uses these existing APIs...</a></h3> | 
|  |  | 
|  |  | 
|  | <dl> | 
|  | <dt><code>ap_md5digest()</code> / <code>ap_md5contextTo64</code></dt> | 
|  | <dd>These functions are no longer available. Use the equivalent functions | 
|  | from APR if needed.</dd> | 
|  |  | 
|  | </dl> | 
|  |  | 
|  |  | 
|  | <h3><a name="upgrading_byfeature" id="upgrading_byfeature">If your module interfaces with this feature...</a></h3> | 
|  |  | 
|  | <dl> | 
|  | <dt>fillmin</dt> | 
|  | <dd>Optional: If your module fills me in.</dd> | 
|  |  | 
|  | </dl> | 
|  |  | 
|  |  | 
|  | <h3><a name="upgrading_newfeatures" id="upgrading_newfeatures">Does your module...</a></h3> | 
|  |  | 
|  | <dl> | 
|  | <dt>Fill me in</dt> | 
|  | <dd>Consider if filling me in.</dd> | 
|  |  | 
|  | </dl> | 
|  |  | 
|  |  | 
|  | </div></div> | 
|  | <div class="bottomlang"> | 
|  | <p><span>Available Languages: </span><a href="../en/developer/new_api_2_6.html" title="English"> en </a></p> | 
|  | </div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div> | 
|  | <script type="text/javascript"><!--//--><![CDATA[//><!-- | 
|  | var comments_shortname = 'httpd'; | 
|  | var comments_identifier = 'http://httpd.apache.org/docs/trunk/developer/new_api_2_6.html'; | 
|  | (function(w, d) { | 
|  | if (w.location.hostname.toLowerCase() == "httpd.apache.org") { | 
|  | d.write('<div id="comments_thread"><\/div>'); | 
|  | var s = d.createElement('script'); | 
|  | s.type = 'text/javascript'; | 
|  | s.async = true; | 
|  | s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; | 
|  | (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); | 
|  | } | 
|  | else { | 
|  | d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); | 
|  | } | 
|  | })(window, document); | 
|  | //--><!]]></script></div><div id="footer"> | 
|  | <p class="apache">Copyright 2025 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> | 
|  | <p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!-- | 
|  | if (typeof(prettyPrint) !== 'undefined') { | 
|  | prettyPrint(); | 
|  | } | 
|  | //--><!]]></script> | 
|  | </body></html> |