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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>What's new / Upgrading — Varnish version 5.2.1 documentation</title> <link rel="stylesheet" href="../_static/classic.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '5.2.1', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="top" title="Varnish version 5.2.1 documentation" href="../index.html" /> <link rel="next" title="Changes in Varnish 5.2" href="changes-5.2.html" /> <link rel="prev" title="VTC" href="../reference/vtc.html" /> </head> <body role="document"> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="changes-5.2.html" title="Changes in Varnish 5.2" accesskey="N">next</a> |</li> <li class="right" > <a href="../reference/vtc.html" title="VTC" accesskey="P">previous</a> |</li> <li class="nav-item nav-item-0"><a href="../index.html">Varnish version 5.2.1 documentation</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="what-s-new-upgrading"> <span id="whats-new-index"></span><h1>What's new / Upgrading<a class="headerlink" href="#what-s-new-upgrading" title="Permalink to this headline">¶</a></h1> <p>This section describes the changes and improvements between different versions of Varnish, and what upgrading between the different versions entail.</p> <div class="section" id="varnish-5-2"> <h2>Varnish 5.2<a class="headerlink" href="#varnish-5-2" title="Permalink to this headline">¶</a></h2> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="changes-5.2.html">Changes in Varnish 5.2</a><ul> <li class="toctree-l2"><a class="reference internal" href="changes-5.2.html#new-vmods-in-the-standard-distribution">New VMODs in the standard distribution</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.2.html#news-for-authors-of-vmods-and-varnish-api-client-applications">News for authors of VMODs and Varnish API client applications</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="upgrading-5.2.html">Upgrading to Varnish 5.2</a><ul> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.2.html#varnish-statistics-and-logging">Varnish statistics and logging</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.2.html#varnishd-parameters">varnishd parameters</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.2.html#changes-to-vcl">Changes to VCL</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.2.html#other-changes">Other changes</a></li> </ul> </li> </ul> </div> </div> <div class="section" id="varnish-5-1"> <h2>Varnish 5.1<a class="headerlink" href="#varnish-5-1" title="Permalink to this headline">¶</a></h2> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="changes-5.1.html">Changes in Varnish 5.1</a><ul> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#startup-cli-command-file">Startup CLI command file</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#universal-vcl-return-fail">Universal VCL return(fail)</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#progress-on-http-2-support">Progress on HTTP/2 support</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#hit-for-pass-has-returned">Hit-For-Pass has returned</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#not-modified-responses-after-a-pass">304 Not Modified responses after a pass</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#vxid-in-vsl-queries">VXID in VSL queries</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#project-tool-improvements">Project tool improvements</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.1.html#news-for-authors-of-vmods-and-varnish-api-client-applications">News for authors of VMODs and Varnish API client applications</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="upgrading-5.1.html">Upgrading to Varnish 5.1</a><ul> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.1.html#varnishd-command-line-options">varnishd command-line options</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.1.html#varnishd-parameters">varnishd parameters</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.1.html#changes-to-vcl">Changes to VCL</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.1.html#other-changes">Other changes</a></li> </ul> </li> </ul> </div> </div> <div class="section" id="varnish-5-0"> <h2>Varnish 5.0<a class="headerlink" href="#varnish-5-0" title="Permalink to this headline">¶</a></h2> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="relnote-5.0.html">Varnish 5.0 Release Note</a><ul> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#how-to-get-varnish-5-0">How to get Varnish 5.0</a></li> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#reasons-to-upgrade-to-varnish-5-0">Reasons to upgrade to Varnish 5.0</a></li> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#reasons-not-to-upgrade-to-varnish-5-0">Reasons not to upgrade to Varnish 5.0</a></li> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#next-release">Next release</a></li> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#the-obligatory-thank-you-speech">The obligatory thank-you speech</a></li> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#we-need-more-money">We need more money</a></li> <li class="toctree-l2"><a class="reference internal" href="relnote-5.0.html#we-also-need-more-manpower">We also need more manpower</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="changes-5.0.html">Changes in Varnish 5.0</a><ul> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#separate-vcl-files-and-vcl-labels">Separate VCL files and VCL labels</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#very-experimental-http-2-support">Very Experimental HTTP/2 support</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#the-shard-director">The Shard Director</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#hit-for-pass-is-now-actually-hit-for-miss">Hit-For-Pass is now actually Hit-For-Miss</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#ban-lurker-improvements">Ban Lurker Improvements</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#request-body-sent-always-cacheable-post">Request Body sent always / "cacheable POST"</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#esi-and-backend-request-coalescing-waitinglist-improvement">ESI and Backend Request Coalescing ("waitinglist") Improvement</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#backend-proxy-protocol-requests">Backend PROXY protocol requests</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#default-vcl-search-path">Default VCL search path</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#devicedetect-vcl">devicedetect.vcl</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#varnishtest">varnishtest</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#misc">misc</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-5.0.html#news-for-vmod-authors">News for VMOD authors</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="upgrading-5.0.html">Upgrading to Varnish 5.0</a><ul> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.0.html#changes-to-vcl">Changes to VCL</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.0.html#management-interface">Management interface</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.0.html#changes-to-parameters">Changes to parameters</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-5.0.html#other-changes">Other changes</a></li> </ul> </li> </ul> </div> </div> <div class="section" id="varnish-4-1"> <h2>Varnish 4.1<a class="headerlink" href="#varnish-4-1" title="Permalink to this headline">¶</a></h2> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="changes-4.1.html">Changes in Varnish 4.1</a><ul> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#proactive-security-features">Proactive security features</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#warm-and-cold-vcl-configurations">Warm and cold VCL configurations</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#proxy-protocol-support">PROXY protocol support</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#vmod-backends">VMOD backends</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#backend-connection-timeout">Backend connection timeout</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#protocol-support">Protocol support</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#more-modules-available">More modules available</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#passing-data-between-esi-requests">Passing data between ESI requests</a></li> <li class="toctree-l2"><a class="reference internal" href="changes-4.1.html#other-noteworthy-small-changes">Other noteworthy small changes</a></li> </ul> </li> <li class="toctree-l1"><a class="reference internal" href="upgrading-4.1.html">Upgrading to Varnish 4.1</a><ul> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.1.html#changes-to-vcl">Changes to VCL</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.1.html#management-interface">Management interface</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.1.html#runtime-users-and-groups">Runtime users and groups</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.1.html#changes-to-parameters">Changes to parameters</a></li> </ul> </li> </ul> </div> </div> <div class="section" id="varnish-4-0"> <h2>Varnish 4.0<a class="headerlink" href="#varnish-4-0" title="Permalink to this headline">¶</a></h2> <div class="toctree-wrapper compound"> <ul> <li class="toctree-l1"><a class="reference internal" href="upgrading-4.0.html">Upgrading to Varnish 4.0</a><ul> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.0.html#changes-to-vcl">Changes to VCL</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.0.html#changes-to-existing-parameters">Changes to existing parameters</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.0.html#new-parameters-since-3-0">New parameters since 3.0</a></li> <li class="toctree-l2"><a class="reference internal" href="upgrading-4.0.html#other-changes">Other changes</a></li> </ul> </li> </ul> </div> </div> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3><a href="../index.html">Table Of Contents</a></h3> <ul> <li><a class="reference internal" href="#">What's new / Upgrading</a><ul> <li><a class="reference internal" href="#varnish-5-2">Varnish 5.2</a></li> <li><a class="reference internal" href="#varnish-5-1">Varnish 5.1</a></li> <li><a class="reference internal" href="#varnish-5-0">Varnish 5.0</a></li> <li><a class="reference internal" href="#varnish-4-1">Varnish 4.1</a></li> <li><a class="reference internal" href="#varnish-4-0">Varnish 4.0</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="../reference/vtc.html" title="previous chapter">VTC</a></p> <h4>Next topic</h4> <p class="topless"><a href="changes-5.2.html" title="next chapter">Changes in Varnish 5.2</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../_sources/whats-new/index.txt" rel="nofollow">Show Source</a></li> </ul> </div> <div id="searchbox" style="display: none" role="search"> 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