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href="#2021-12-14" class="hash-link" aria-label="Direct link to 2021-12-14" title="Direct link to 2021-12-14"></a></h4><h4 class="anchor anchorWithStickyNavbar_LWe7" id="security">Security<a href="#security" class="hash-link" aria-label="Direct link to Security" title="Direct link to Security"></a></h4><ul><li>Upgrade log4j to 2.17.0 - <a href="https://pulsar.apache.org/blog/2021/12/11/Log4j-CVE/" target="_blank" rel="noopener noreferrer">CVE-2021-45105</a>. <a href="https://github.com/apache/pulsar/pull/13392" target="_blank" rel="noopener noreferrer">#13392</a></li><li>Upgrade commons-compress to 1.21 - CVE-2021-35515, CVE-2021-35516, CVE-2021-35517 and CVE-2021-36090. <a href="https://github.com/apache/pulsar/pull/11345" target="_blank" rel="noopener noreferrer">#11345</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="broker">Broker<a href="#broker" class="hash-link" aria-label="Direct link to Broker" title="Direct link to Broker"></a></h4><ul><li>Fix DispatchRateLimiter does not take effect. <a href="https://github.com/apache/pulsar/pull/8611" target="_blank" rel="noopener noreferrer">#8611</a></li><li>Fix set-publish-rate when using preciseTopicPublishRateLimiterEnable=true. <a href="https://github.com/apache/pulsar/pull/10384" target="_blank" rel="noopener noreferrer">#10384</a></li><li>Fix retention policy in topic policy not work. <a href="https://github.com/apache/pulsar/pull/11021" target="_blank" rel="noopener noreferrer">#11021</a></li><li>Fix GetTopicsOfNamespace with binary lookup service not check auth. <a href="https://github.com/apache/pulsar/pull/11172" target="_blank" rel="noopener noreferrer">#11172</a></li><li>Fix retention of keys in compaction. <a href="https://github.com/apache/pulsar/pull/11287" target="_blank" rel="noopener noreferrer">#11287</a></li><li>Fix using partitioned topic name to get Policy. <a href="https://github.com/apache/pulsar/pull/11294" target="_blank" rel="noopener noreferrer">#11294</a></li><li>Fix NPE when unloading persistent partitioned topic. <a href="https://github.com/apache/pulsar/pull/11310" target="_blank" rel="noopener noreferrer">#11310</a></li><li>Remove RateLimiter constructors and replace with builder usage. <a href="https://github.com/apache/pulsar/pull/11599" target="_blank" rel="noopener noreferrer">#11599</a></li><li>Add backoff for setting for getting topic policies. <a href="https://github.com/apache/pulsar/pull/11574" target="_blank" rel="noopener noreferrer">#11574</a></li><li>Fix decode compression managedLedgerInfo data. <a href="https://github.com/apache/pulsar/pull/11569" target="_blank" rel="noopener noreferrer">#11569</a></li><li>Fix some topic policy operation without backoff. <a href="https://github.com/apache/pulsar/pull/11560" target="_blank" rel="noopener noreferrer">#11560</a></li><li>Fix data lost when using earliest position to subscribe to a topic. <a href="https://github.com/apache/pulsar/pull/11547" target="_blank" rel="noopener noreferrer">#11547</a></li><li>Fix the schema deletion when delete topic with delete schema. <a href="https://github.com/apache/pulsar/pull/11501" target="_blank" rel="noopener noreferrer">#11501</a></li><li>Do not create system topic for heartbeat namespace. <a href="https://github.com/apache/pulsar/pull/11499" target="_blank" rel="noopener noreferrer">#11499</a></li><li>Compress managed ledger info. <a href="https://github.com/apache/pulsar/pull/11490" target="_blank" rel="noopener noreferrer">#11490</a></li><li>Add backoff for setting for getting topic policies. <a href="https://github.com/apache/pulsar/pull/11487" target="_blank" rel="noopener noreferrer">#11487</a></li><li>Solving precise rate limiting does not take effect. <a href="https://github.com/apache/pulsar/pull/11446" target="_blank" rel="noopener noreferrer">#11446</a></li><li>Fix replicated subscriptions direct memory leak. <a href="https://github.com/apache/pulsar/pull/11396" target="_blank" rel="noopener noreferrer">#11396</a></li><li>Close the replicator and replication client when deleting cluster. <a href="https://github.com/apache/pulsar/pull/11390" target="_blank" rel="noopener noreferrer">#11390</a></li><li>Invalidate the read handle after all cursors are consumed. <a href="https://github.com/apache/pulsar/pull/11389" target="_blank" rel="noopener noreferrer">#11389</a></li><li>Fix NPE when unloading persistent partitioned topic. <a href="https://github.com/apache/pulsar/pull/11386" target="_blank" rel="noopener noreferrer">#11386</a></li><li>Fix retention of keys in compaction. <a href="https://github.com/apache/pulsar/pull/11384" target="_blank" rel="noopener noreferrer">#11384</a></li><li>Disable replicate system topic across clusters. <a href="https://github.com/apache/pulsar/pull/11376" target="_blank" rel="noopener noreferrer">#11376</a></li><li>Parallel Precise Publish Rate Limiting Fix. <a href="https://github.com/apache/pulsar/pull/11372" target="_blank" rel="noopener noreferrer">#11372</a></li><li>Pulsar Admin List Subscription lists only subscriptions created for Partition-0 when partition specific subscriptions are created. <a href="https://github.com/apache/pulsar/pull/11355" target="_blank" rel="noopener noreferrer">#11355</a></li><li>Fix inconsistent behavior for Namespace bundles cache. <a href="https://github.com/apache/pulsar/pull/11346" target="_blank" rel="noopener noreferrer">#11346</a></li><li>Fix update ledger list to znode version mismatch failed, ledger not delete. <a href="https://github.com/apache/pulsar/pull/12015" target="_blank" rel="noopener noreferrer">#12015</a></li><li>Print position info when can't find next valid position. <a href="https://github.com/apache/pulsar/pull/11969" target="_blank" rel="noopener noreferrer">#11969</a></li><li>Forbid to read other topic's data in managedLedger layer. <a href="https://github.com/apache/pulsar/pull/11913" target="_blank" rel="noopener noreferrer">#11913</a></li><li>Fix using partitioned topic name to get topic policies. <a href="https://github.com/apache/pulsar/pull/11897" target="_blank" rel="noopener noreferrer">#11897</a></li><li>Refine topic level backlog quota policies warning log. <a href="https://github.com/apache/pulsar/pull/11863" target="_blank" rel="noopener noreferrer">#11863</a></li><li>Producer getting producer busy is removing existing producer from list. <a href="https://github.com/apache/pulsar/pull/11804" target="_blank" rel="noopener noreferrer">#11804</a></li><li>Handle NPE and memory leak when full key range isn't covered with active consumers. <a href="https://github.com/apache/pulsar/pull/11749" target="_blank" rel="noopener noreferrer">#11749</a></li><li>Call .release() when discarding entry to prevent direct memory leak. <a href="https://github.com/apache/pulsar/pull/11748" target="_blank" rel="noopener noreferrer">#11748</a></li><li>Fix the topic in fenced state and can not recover. <a href="https://github.com/apache/pulsar/pull/11737" target="_blank" rel="noopener noreferrer">#11737</a></li><li>Support disabling non-TLS service ports. <a href="https://github.com/apache/pulsar/pull/11724" target="_blank" rel="noopener noreferrer">#11724</a></li><li>Fix the bug, can not update topic when the update topicName is contained by an existed topic as a part. <a href="https://github.com/apache/pulsar/pull/11686" target="_blank" rel="noopener noreferrer">#11686</a></li><li>Fix Pulsar didn't respond error messages when throw InterceptException. <a href="https://github.com/apache/pulsar/pull/11650" target="_blank" rel="noopener noreferrer">#11650</a></li><li>Avoid redundant calls for getting the offload policies from the offloader. <a href="https://github.com/apache/pulsar/pull/11629" target="_blank" rel="noopener noreferrer">#11629</a></li><li>Optimize ManagedLedger Ledger Ownership Check. <a href="https://github.com/apache/pulsar/pull/13222" target="_blank" rel="noopener noreferrer">#13222</a></li><li>Do not reuse the Failed OpAddEntry object which lead bundle unloading timeout. <a href="https://github.com/apache/pulsar/pull/12993" target="_blank" rel="noopener noreferrer">#12993</a></li><li>Fix producer getting incorrectly removed from topic's producers map. <a href="https://github.com/apache/pulsar/pull/12846" target="_blank" rel="noopener noreferrer">#12846</a></li><li>Allow to configure schema compatibility policy for system topics. <a href="https://github.com/apache/pulsar/pull/12598" target="_blank" rel="noopener noreferrer">#12598</a></li><li>Cleanup already deleted namespace topics. <a href="https://github.com/apache/pulsar/pull/12583" target="_blank" rel="noopener noreferrer">#12583</a></li><li>Add OpAddEntry to pendingAddEntries after the state check. <a href="https://github.com/apache/pulsar/pull/12570" target="_blank" rel="noopener noreferrer">#12570</a></li><li>Cancel scheduled tasks when deleting ManagedLedgerImpl. <a href="https://github.com/apache/pulsar/pull/12565" target="_blank" rel="noopener noreferrer">#12565</a></li><li>NPE on OpAddEntry while ManagedLedger is closing. <a href="https://github.com/apache/pulsar/pull/12364" target="_blank" rel="noopener noreferrer">#12364</a></li><li>Avoid potentially blocking calls to metadata on critical threads. <a href="https://github.com/apache/pulsar/pull/12340" target="_blank" rel="noopener noreferrer">#12340</a></li><li>Fix used after recycle issue in OpAddEntry. <a href="https://github.com/apache/pulsar/pull/12103" target="_blank" rel="noopener noreferrer">#12103</a></li><li>Optimize the memory usage of Cache Eviction. <a href="https://github.com/apache/pulsar/pull/12045" target="_blank" rel="noopener noreferrer">#12045</a></li><li>Fix wrong key-hash selector used for new consumers after all the previous consumers disconnected. <a href="https://github.com/apache/pulsar/pull/12035" target="_blank" rel="noopener noreferrer">#12035</a></li><li>Only auth_errors should log at error level. <a href="https://github.com/apache/pulsar/pull/9325" target="_blank" rel="noopener noreferrer">#9325</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="dependency-upgrade">Dependency upgrade<a href="#dependency-upgrade" class="hash-link" aria-label="Direct link to Dependency upgrade" title="Direct link to Dependency upgrade"></a></h4><ul><li>Remove Boost::System runtime dependency. <a href="https://github.com/apache/pulsar/pull/9498" target="_blank" rel="noopener noreferrer">#9498</a></li><li>Upgrade Jetty to 9.4.43.v20210629. <a href="https://github.com/apache/pulsar/pull/11660" target="_blank" rel="noopener noreferrer">#11660</a></li><li>Add maven.restlet.org repository. <a href="https://github.com/apache/pulsar/pull/13248" target="_blank" rel="noopener noreferrer">#13248</a></li><li>Upgrade ZooKeeper version to 3.5.9. <a href="https://github.com/apache/pulsar/pull/12981" target="_blank" rel="noopener noreferrer">#12981</a></li><li>Remove pulsar-dashboard from the publish process of images. <a href="https://github.com/apache/pulsar/pull/12534" target="_blank" rel="noopener noreferrer">#12534</a></li><li>Roll back to using Java 8 for docker images. <a href="https://github.com/apache/pulsar/pull/12357" target="_blank" rel="noopener noreferrer">#12357</a></li><li>Upgrade TestContainers to 1.15.1. <a href="https://github.com/apache/pulsar/pull/9120" target="_blank" rel="noopener noreferrer">#9120</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="client">Client<a href="#client" class="hash-link" aria-label="Direct link to Client" title="Direct link to Client"></a></h4><ul><li>[Pulsar perf]<!-- --> Fix log level config for pulsar-admin, pulsar-client and pulsar-perf. <a href="https://github.com/apache/pulsar/pull/12915" target="_blank" rel="noopener noreferrer">#12915</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="functions-and-pulsar-io">Functions and Pulsar IO<a href="#functions-and-pulsar-io" class="hash-link" aria-label="Direct link to Functions and Pulsar IO" title="Direct link to Functions and Pulsar IO"></a></h4><ul><li>Fix source stats exposing empty exceptions list. <a href="https://github.com/apache/pulsar/pull/11478" target="_blank" rel="noopener noreferrer">#11478</a></li><li>Fix function API can not use authdata to check superuser. <a href="https://github.com/apache/pulsar/pull/11418" target="_blank" rel="noopener noreferrer">#11418</a></li><li>Support setting KEY_BASED batch builder for Pulsar Sinks. <a href="https://github.com/apache/pulsar/pull/11710" target="_blank" rel="noopener noreferrer">#11710</a></li><li>Detect .nar files and prevent spammy logs on functions boot. <a href="https://github.com/apache/pulsar/pull/12665" target="_blank" rel="noopener noreferrer">#12665</a></li><li>Remove the deprecated api usage in hdfs. <a href="https://github.com/apache/pulsar/pull/12080" target="_blank" rel="noopener noreferrer">#12080</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="tiered-storage">Tiered Storage<a href="#tiered-storage" class="hash-link" aria-label="Direct link to Tiered Storage" title="Direct link to Tiered Storage"></a></h4><ul><li>Fix the potential race condition in the BlobStore readhandler. <a href="https://github.com/apache/pulsar/pull/12123" target="_blank" rel="noopener noreferrer">#12123</a></li></ul><h4 class="anchor anchorWithStickyNavbar_LWe7" id="build">Build<a href="#build" class="hash-link" aria-label="Direct link to Build" title="Direct link to Build"></a></h4><ul><li>Force CMake to find Python2. <a href="https://github.com/apache/pulsar/pull/9690" target="_blank" rel="noopener noreferrer">#9690</a></li><li>Use ubuntu 20.04 as docker image base. <a href="https://github.com/apache/pulsar/pull/12017" target="_blank" rel="noopener noreferrer">#12017</a></li><li>Fix docker image install python3.7-dev problem. <a href="https://github.com/apache/pulsar/pull/11942" target="_blank" rel="noopener noreferrer">#11942</a></li></ul></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/apache/pulsar-site/edit/main/release-notes/versioned/pulsar-2.7.4.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages navigation"></nav></div></div><div class="col col--3"><div class="tableOfContents_jeP5 thin-scrollbar theme-doc-toc-desktop"><div class="border"><div 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