<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta http-equiv="X-UA-Compatible" content="IE=edge"/><title>Security Policy and Supported Versions · Apache Pulsar</title><meta name="viewport" content="width=device-width, initial-scale=1.0"/><meta name="generator" content="Docusaurus"/><meta name="description" content="## Using Pulsar&#x27;s Security Features"/><meta name="docsearch:version" content="2.10.0"/><meta name="docsearch:language" content="en"/><meta property="og:title" content="Security Policy and Supported Versions · Apache Pulsar"/><meta property="og:type" content="website"/><meta property="og:url" content="https://pulsar.apache.org/"/><meta property="og:description" content="## Using Pulsar&#x27;s Security Features"/><meta name="twitter:card" content="summary"/><meta name="twitter:image" content="https://pulsar.apache.org/img/pulsar.svg"/><link rel="shortcut icon" href="/img/pulsar.ico"/><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.12.0/styles/atom-one-dark.min.css"/><link rel="alternate" type="application/atom+xml" href="https://pulsar.apache.org/blog/atom.xml" title="Apache Pulsar Blog ATOM Feed"/><link rel="alternate" type="application/rss+xml" href="https://pulsar.apache.org/blog/feed.xml" title="Apache Pulsar Blog RSS Feed"/><link rel="stylesheet" href="/css/code-blocks-buttons.css"/><script type="text/javascript" src="https://buttons.github.io/buttons.js"></script><script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script><script type="text/javascript" src="/js/custom.js"></script><script src="/js/scrollSpy.js"></script><link rel="stylesheet" href="/css/main.css"/><script src="/js/codetabs.js"></script></head><body class="sideNavVisible separateOnPageNav"><div class="fixedHeaderContainer"><div class="headerWrapper wrapper"><header><a href="/en"><img class="logo" src="/img/pulsar.svg" alt="Apache Pulsar"/></a><a href="/en/versions"><h3>2.10.0</h3></a><div class="navigationWrapper navigationSlider"><nav class="slidingNav"><ul class="nav-site nav-site-internal"><li class="siteNavGroupActive"><a href="/docs/en/getting-started-standalone" target="_self">Docs</a></li><li class=""><a href="/en/download" target="_self">Download</a></li><li class="siteNavGroupActive"><a href="/docs/en/client-libraries" target="_self">Clients</a></li><li class=""><a href="#restapis" target="_self">REST APIs</a></li><li class=""><a href="#cli" target="_self">Cli</a></li><li class=""><a href="/blog/" target="_self">Blog</a></li><li class=""><a href="#community" target="_self">Community</a></li><li class=""><a href="#apache" target="_self">Apache</a></li><li class=""><a href="https://pulsar-next.staged.apache.org/" target="_self">New Website (Beta)</a></li><span><li><a id="languages-menu" href="#"><img class="languages-icon" src="/img/language.svg" alt="Languages icon"/>English</a><div id="languages-dropdown" class="hide"><ul id="languages-dropdown-items"><li><a href="/docs/ja/security-policy-and-supported-versions">日本語</a></li><li><a href="/docs/fr/security-policy-and-supported-versions">Français</a></li><li><a href="/docs/ko/security-policy-and-supported-versions">한국어</a></li><li><a href="/docs/zh-CN/security-policy-and-supported-versions">中文</a></li><li><a href="/docs/zh-TW/security-policy-and-supported-versions">繁體中文</a></li><li><a href="https://crowdin.com/project/apache-pulsar" target="_blank" rel="noreferrer noopener">Help Translate</a></li></ul></div></li><script>
        const languagesMenuItem = document.getElementById("languages-menu");
        const languagesDropDown = document.getElementById("languages-dropdown");
        languagesMenuItem.addEventListener("click", function(event) {
          event.preventDefault();

          if (languagesDropDown.className == "hide") {
            languagesDropDown.className = "visible";
          } else {
            languagesDropDown.className = "hide";
          }
        });
      </script></span></ul></nav></div></header></div></div><div class="navPusher"><div class="docMainWrapper wrapper"><div class="docsNavContainer" id="docsNav"><nav class="toc"><div class="toggleNav"><section class="navWrapper wrapper"><div class="navBreadcrumb wrapper"><div class="navToggle" id="navToggler"><div class="hamburger-menu"><div class="line1"></div><div class="line2"></div><div class="line3"></div></div></div><h2><i>›</i><span>Security</span></h2><div class="tocToggler" id="tocToggler"><i class="icon-toc"></i></div></div><div class="navGroups"><div class="navGroup"><h3 class="navGroupCategoryTitle">Get Started</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/getting-started-standalone">Run Pulsar locally</a></li><li class="navListItem"><a class="navItem" href="/docs/en/getting-started-docker">Run Pulsar in Docker</a></li><li class="navListItem"><a class="navItem" href="/docs/en/getting-started-helm">Run Pulsar in Kubernetes</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Concepts and Architecture</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/concepts-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-messaging">Messaging</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-architecture-overview">Architecture</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-clients">Clients</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-replication">Geo Replication</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-multi-tenancy">Multi Tenancy</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-authentication">Authentication and Authorization</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-topic-compaction">Topic Compaction</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-proxy-sni-routing">Proxy support with SNI routing</a></li><li class="navListItem"><a class="navItem" href="/docs/en/concepts-multiple-advertised-listeners">Multiple advertised listeners</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Pulsar Schema</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/schema-get-started">Get started</a></li><li class="navListItem"><a class="navItem" href="/docs/en/schema-understand">Understand schema</a></li><li class="navListItem"><a class="navItem" href="/docs/en/schema-evolution-compatibility">Schema evolution and compatibility</a></li><li class="navListItem"><a class="navItem" href="/docs/en/schema-manage">Manage schema</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Pulsar Functions</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/functions-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-runtime">Setup: Configure Functions runtime</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-worker">Setup: Pulsar Functions Worker</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-develop">How-to: Develop</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-package">How-to: Package</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-debug">How-to: Debug</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-deploy">How-to: Deploy</a></li><li class="navListItem"><a class="navItem" href="/docs/en/functions-cli">Reference: CLI</a></li><li class="navListItem"><a class="navItem" href="/docs/en/window-functions-context">Window Functions: Context</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Pulsar IO</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/io-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-quickstart">Get started</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-use">Use</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-debug">Debug</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-connectors">Built-in connector</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-cdc">CDC connector</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-develop">Develop</a></li><li class="navListItem"><a class="navItem" href="/docs/en/io-cli">CLI</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Pulsar SQL</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/sql-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/sql-getting-started">Query data</a></li><li class="navListItem"><a class="navItem" href="/docs/en/sql-deployment-configurations">Configuration and deployment</a></li><li class="navListItem"><a class="navItem" href="/docs/en/sql-rest-api">REST APIs</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Tiered Storage</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/tiered-storage-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/tiered-storage-aws">AWS S3 offloader</a></li><li class="navListItem"><a class="navItem" href="/docs/en/tiered-storage-gcs">GCS offloader</a></li><li class="navListItem"><a class="navItem" href="/docs/en/tiered-storage-filesystem">Filesystem offloader</a></li><li class="navListItem"><a class="navItem" href="/docs/en/tiered-storage-azure">Azure BlobStore offloader</a></li><li class="navListItem"><a class="navItem" href="/docs/en/tiered-storage-aliyun">Aliyun OSS offloader</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Transactions</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/txn-why">Why transactions?</a></li><li class="navListItem"><a class="navItem" href="/docs/en/txn-what">What are transactions?</a></li><li class="navListItem"><a class="navItem" href="/docs/en/txn-how">How transactions work?</a></li><li class="navListItem"><a class="navItem" href="/docs/en/txn-use">How to use transactions?</a></li><li class="navListItem"><a class="navItem" href="/docs/en/txn-monitor">How to monitor transactions?</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Kubernetes (Helm)</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/helm-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/helm-prepare">Prepare</a></li><li class="navListItem"><a class="navItem" href="/docs/en/helm-install">Install</a></li><li class="navListItem"><a class="navItem" href="/docs/en/helm-deploy">Deployment</a></li><li class="navListItem"><a class="navItem" href="/docs/en/helm-upgrade">Upgrade</a></li><li class="navListItem"><a class="navItem" href="/docs/en/helm-tools">Required Tools</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Deployment</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/deploy-aws">Amazon Web Services</a></li><li class="navListItem"><a class="navItem" href="/docs/en/deploy-kubernetes">Kubernetes</a></li><li class="navListItem"><a class="navItem" href="/docs/en/deploy-bare-metal">Bare metal</a></li><li class="navListItem"><a class="navItem" href="/docs/en/deploy-bare-metal-multi-cluster">Bare metal multi-cluster</a></li><li class="navListItem"><a class="navItem" href="/docs/en/deploy-dcos">DC/OS</a></li><li class="navListItem"><a class="navItem" href="/docs/en/deploy-docker">Docker</a></li><li class="navListItem"><a class="navItem" href="/docs/en/deploy-monitoring">Monitor</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Administration</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/administration-zk-bk">ZooKeeper and BookKeeper</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-geo">Geo-replication</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-pulsar-manager">Pulsar Manager</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-stats">Pulsar statistics</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-load-balance">Load balance</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-proxy">Pulsar proxy</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-upgrade">Upgrade</a></li><li class="navListItem"><a class="navItem" href="/docs/en/administration-isolation">Pulsar isolation</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Security</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/security-overview">Overview</a></li><li class="navListItem navListItemActive"><a class="navItem" href="/docs/en/security-policy-and-supported-versions">Security Policy and Supported Versions</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-tls-transport">Transport Encryption using TLS</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-tls-authentication">Authentication using TLS</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-tls-keystore">Using TLS with KeyStore configure</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-jwt">Authentication using JWT</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-athenz">Authentication using Athenz</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-kerberos">Authentication using Kerberos</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-oauth2">Authentication using OAuth 2.0 access tokens</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-authorization">Authorization and ACLs</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-encryption">End-to-End Encryption</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-extending">Extend Authentication and Authorization</a></li><li class="navListItem"><a class="navItem" href="/docs/en/security-bouncy-castle">Bouncy Castle Providers</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Performance</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/performance-pulsar-perf">Pulsar Perf</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Client Libraries</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-java">Java</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-go">Go</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-python">Python</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-cpp">C++</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-node">Node.js</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-websocket">WebSocket</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-dotnet">C#</a></li><li class="navListItem"><a class="navItem" href="/docs/en/client-libraries-rest">REST</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Admin API</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-overview">Overview</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-clusters">Clusters</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-tenants">Tenants</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-brokers">Brokers</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-namespaces">Namespaces</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-permissions">Permissions</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-topics">Topics</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-functions">Functions</a></li><li class="navListItem"><a class="navItem" href="/docs/en/admin-api-packages">Packages</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Adaptors</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/adaptors-kafka">Kafka client wrapper</a></li><li class="navListItem"><a class="navItem" href="/docs/en/adaptors-spark">Apache Spark</a></li><li class="navListItem"><a class="navItem" href="/docs/en/adaptors-storm">Apache Storm</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Cookbooks</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-compaction">Topic compaction</a></li><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-deduplication">Message deduplication</a></li><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-non-persistent">Non-persistent messaging</a></li><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-retention-expiry">Message retention and expiry</a></li><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-encryption">Encryption</a></li><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-message-queue">Message queue</a></li><li class="navListItem"><a class="navItem" href="/docs/en/cookbooks-bookkeepermetadata">BookKeeper Ledger Metadata</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Development</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/develop-tools">Simulation tools</a></li><li class="navListItem"><a class="navItem" href="/docs/en/developing-binary-protocol">Binary protocol</a></li><li class="navListItem"><a class="navItem" href="/docs/en/develop-schema">Custom schema storage</a></li><li class="navListItem"><a class="navItem" href="/docs/en/develop-load-manager">Modular load manager</a></li><li class="navListItem"><a class="navItem" href="/docs/en/develop-plugin">Plugin</a></li></ul></div><div class="navGroup"><h3 class="navGroupCategoryTitle">Reference</h3><ul class=""><li class="navListItem"><a class="navItem" href="/docs/en/reference-terminology">Terminology</a></li><li class="navListItem"><a class="navItem" href="/docs/en/reference-cli-tools">Pulsar CLI tools</a></li><li class="navListItem"><a class="navItem" href="/docs/en/reference-configuration">Pulsar configuration</a></li><li class="navListItem"><a class="navItem" href="/docs/en/reference-metrics">Pulsar Metrics</a></li></ul></div></div></section></div><script>
            var coll = document.getElementsByClassName('collapsible');
            var checkActiveCategory = true;
            for (var i = 0; i < coll.length; i++) {
              var links = coll[i].nextElementSibling.getElementsByTagName('*');
              if (checkActiveCategory){
                for (var j = 0; j < links.length; j++) {
                  if (links[j].classList.contains('navListItemActive')){
                    coll[i].nextElementSibling.classList.toggle('hide');
                    coll[i].childNodes[1].classList.toggle('rotate');
                    checkActiveCategory = false;
                    break;
                  }
                }
              }

              coll[i].addEventListener('click', function() {
                var arrow = this.childNodes[1];
                arrow.classList.toggle('rotate');
                var content = this.nextElementSibling;
                content.classList.toggle('hide');
              });
            }

            document.addEventListener('DOMContentLoaded', function() {
              createToggler('#navToggler', '#docsNav', 'docsSliderActive');
              createToggler('#tocToggler', 'body', 'tocActive');

              var headings = document.querySelector('.toc-headings');
              headings && headings.addEventListener('click', function(event) {
                var el = event.target;
                while(el !== headings){
                  if (el.tagName === 'A') {
                    document.body.classList.remove('tocActive');
                    break;
                  } else{
                    el = el.parentNode;
                  }
                }
              }, false);

              function createToggler(togglerSelector, targetSelector, className) {
                var toggler = document.querySelector(togglerSelector);
                var target = document.querySelector(targetSelector);

                if (!toggler) {
                  return;
                }

                toggler.onclick = function(event) {
                  event.preventDefault();

                  target.classList.toggle(className);
                };
              }
            });
        </script></nav></div><div class="container mainContainer docsContainer"><div class="wrapper"><div class="post"><header class="postHeader"><a class="edit-page-link button" href="https://github.com/apache/pulsar/edit/master/site2/docs/security-versioning-policy.md" target="_blank" rel="noreferrer noopener">Edit</a><h1 id="__docusaurus" class="postHeaderTitle">Security Policy and Supported Versions</h1></header><article><div><span><h2><a class="anchor" aria-hidden="true" id="using-pulsars-security-features"></a><a href="#using-pulsars-security-features" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Using Pulsar's Security Features</h2>
<p>You can find documentation on Pulsar's available security features and how to use them here:
<a href="https://pulsar.apache.org/docs/en/security-overview/">https://pulsar.apache.org/docs/en/security-overview/</a>.</p>
<h2><a class="anchor" aria-hidden="true" id="security-vulnerability-announcements"></a><a href="#security-vulnerability-announcements" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Security Vulnerability Announcements</h2>
<p>The Pulsar community will announce security vulnerabilities and how to mitigate them on the <a href="mailto:users@pulsar.apache.org">users@pulsar.apache.org</a>.
For instructions on how to subscribe, please see <a href="https://pulsar.apache.org/contact/">https://pulsar.apache.org/contact/</a>.</p>
<h2><a class="anchor" aria-hidden="true" id="versioning-policy"></a><a href="#versioning-policy" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Versioning Policy</h2>
<p>The Pulsar project adheres to <a href="http://semver.org/spec/v2.0.0.html">Semantic Versioning</a>. Existing releases can expect
patches for bugs and security vulnerabilities. New features will target minor releases.</p>
<p>When upgrading an existing cluster, it is important to upgrade components linearly through each minor version. For
example, when upgrading from 2.8.x to 2.10.x, it is important to upgrade to 2.9.x before going to 2.10.x.</p>
<h2><a class="anchor" aria-hidden="true" id="supported-versions"></a><a href="#supported-versions" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Supported Versions</h2>
<p>Feature release branches will be maintained with security fix and bug fix releases for a period of at least 12 months
after initial release. For example, branch 2.5.x is no longer considered maintained as of January 2021, 12 months after
the release of 2.5.0 in January 2020. No more 2.5.x releases should be expected at this point, even to fix security
vulnerabilities.</p>
<p>Note that a minor version can be maintained past it's 12 month initial support period. For example, version 2.7 is still
actively maintained.</p>
<p>Security fixes will be given priority when it comes to back porting fixes to older versions that are within the
supported time window. It is challenging to decide which bug fixes to back port to old versions. As such, the latest
versions will have the most bug fixes.</p>
<p>When 3.0.0 is released, the community will decide how to continue supporting 2.x. It is possible that the last minor
release within 2.x will be maintained for longer as an “LTS” release, but it has not been officially decided.</p>
<p>The following table shows version support timelines and will be updated with each release.</p>
<table>
<thead>
<tr><th style="text-align:center">Version</th><th style="text-align:center">Supported</th><th style="text-align:center">Initial Release</th><th style="text-align:center">At Least Until</th></tr>
</thead>
<tbody>
<tr><td style="text-align:center">2.9.x</td><td style="text-align:center">:white_check_mark:</td><td style="text-align:center">November 2021</td><td style="text-align:center">November 2022</td></tr>
<tr><td style="text-align:center">2.8.x</td><td style="text-align:center">:white_check_mark:</td><td style="text-align:center">June 2021</td><td style="text-align:center">June 2022</td></tr>
<tr><td style="text-align:center">2.7.x</td><td style="text-align:center">:white_check_mark:</td><td style="text-align:center">November 2020</td><td style="text-align:center">November 2021</td></tr>
<tr><td style="text-align:center">2.6.x</td><td style="text-align:center">:x:</td><td style="text-align:center">June 2020</td><td style="text-align:center">June 2021</td></tr>
<tr><td style="text-align:center">2.5.x</td><td style="text-align:center">:x:</td><td style="text-align:center">January 2020</td><td style="text-align:center">January 2021</td></tr>
<tr><td style="text-align:center">2.4.x</td><td style="text-align:center">:x:</td><td style="text-align:center">July 2019</td><td style="text-align:center">July 2020</td></tr>
<tr><td style="text-align:center">&lt; 2.3.x</td><td style="text-align:center">:x:</td><td style="text-align:center">-</td><td style="text-align:center">-</td></tr>
</tbody>
</table>
<p>If there is ambiguity about which versions of Pulsar are actively supported, please ask on the <a href="mailto:users@pulsar.apache.org">users@pulsar.apache.org</a>
mailing list.</p>
<h2><a class="anchor" aria-hidden="true" id="release-frequency"></a><a href="#release-frequency" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Release Frequency</h2>
<p>With the acceptance of <a href="https://github.com/apache/pulsar/wiki/PIP-47%3A-Time-Based-Release-Plan">PIP-47 - A Time Based Release Plan</a>,
the Pulsar community aims to complete 4 minor releases each year. Patch releases are completed based on demand as well
as need, in the event of security fixes.</p>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/en/security-overview"><span class="arrow-prev">← </span><span>Overview</span></a><a class="docs-next button" href="/docs/en/security-tls-transport"><span>Transport Encryption using TLS</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#using-pulsars-security-features">Using Pulsar's Security Features</a></li><li><a href="#security-vulnerability-announcements">Security Vulnerability Announcements</a></li><li><a href="#versioning-policy">Versioning Policy</a></li><li><a href="#supported-versions">Supported Versions</a></li><li><a href="#release-frequency">Release Frequency</a></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="copyright">Copyright © 2022 The Apache Software Foundation. All Rights Reserved. Apache, Apache Pulsar and the Apache feather logo are trademarks of The Apache Software Foundation.</section><span><script>
      const community = document.querySelector("a[href='#community']").parentNode;
      const communityMenu =
        '<li>' +
        '<a id="community-menu" href="#">Community <span style="font-size: 0.75em">&nbsp;▼</span></a>' +
        '<div id="community-dropdown" class="hide">' +
          '<ul id="community-dropdown-items">' +
            '<li><a href="/en/contact">Contact</a></li>' +
            '<li><a href="/en/contributing">Contributing</a></li>' +
            '<li><a href="/en/coding-guide">Coding guide</a></li>' +
            '<li><a href="/en/events">Events</a></li>' +
            '<li><a href="https://twitter.com/Apache_Pulsar" target="_blank">Twitter &#x2750</a></li>' +
            '<li><a href="https://github.com/apache/pulsar/wiki" target="_blank">Wiki &#x2750</a></li>' +
            '<li><a href="https://github.com/apache/pulsar/issues" target="_blank">Issue tracking &#x2750</a></li>' +
            '<li><a href="https://pulsar-summit.org/" target="_blank">Pulsar Summit &#x2750</a></li>' +
            '<li>&nbsp;</li>' +
            '<li><a href="/en/resources">Resources</a></li>' +
            '<li><a href="/en/team">Team</a></li>' +
            '<li><a href="/en/powered-by">Powered By</a></li>' +
          '</ul>' +
        '</div>' +
        '</li>';

      community.innerHTML = communityMenu;

      const communityMenuItem = document.getElementById("community-menu");
      const communityDropDown = document.getElementById("community-dropdown");
      communityMenuItem.addEventListener("click", function(event) {
        event.preventDefault();

        if (communityDropDown.className == 'hide') {
          communityDropDown.className = 'visible';
        } else {
          communityDropDown.className = 'hide';
        }
      });
    </script></span></footer></div><script>window.twttr=(function(d,s, id){var js,fjs=d.getElementsByTagName(s)[0],t=window.twttr||{};if(d.getElementById(id))return t;js=d.createElement(s);js.id=id;js.src='https://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js, fjs);t._e = [];t.ready = function(f) {t._e.push(f);};return t;}(document, 'script', 'twitter-wjs'));</script></body></html>