{"id":19008,"date":"2023-11-23T23:18:34","date_gmt":"2023-11-24T07:18:34","guid":{"rendered":"https:\/\/tdengine.com\/?p=19008"},"modified":"2025-03-30T23:25:49","modified_gmt":"2025-03-31T06:25:49","slug":"tdengine-3-2-1-0-release-notes","status":"publish","type":"post","link":"https:\/\/tdengine.com\/tdengine-3-2-1-0-release-notes\/","title":{"rendered":"TDengine 3.2.1.0 Release Notes"},"content":{"rendered":"\n<h2 class=\"gb-headline gb-headline-681b4e77 gb-headline-text\">About TDengine<\/h2>\n\n\n\n<p>TDengine is a <a href=\"https:\/\/tdengine.com\/what-is-a-time-series-database\/\">time-series database<\/a> purpose-built for Industry 4.0 and Industrial IoT. It enables real-time ingestion, storage, analysis, and distribution of petabytes of data per day, generated by billions of sensors and data collectors. With TDengine making big data accessible, valuable, and affordable, digital transformation has never been easier.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-b6ecb6c3 gb-headline-text\">What&#8217;s New<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Timestamp conversion functions:<\/strong> You can now use the <code class=\"\" data-line=\"\">to_char<\/code> function to convert ISO 8601 timestamps to VARCHAR data and the <code class=\"\" data-line=\"\">to_timestamp<\/code> function to convert VARCHAR data to ISO 8601 timestamps. For details, see <a href=\"https:\/\/docs.tdengine.com\/tdengine-reference\/sql-manual\/functions\/#conversion-functions\">Conversion Functions<\/a>.<\/li>\n\n\n\n<li><strong>Improved performance of the <code class=\"\" data-line=\"\">LAST()<\/code> function:<\/strong> The <code class=\"\" data-line=\"\">LAST()<\/code> function now offers higher performance thanks to improved caching techniques.<\/li>\n\n\n\n<li><strong>(TDengine Enterprise only) Support for views:<\/strong> You can create views to filter or share your time-series data. A view is a subset of data in a table on which you can perform queries or create subscriptions. For more information, see the TDengine Enterprise documentation.<\/li>\n\n\n\n<li><strong>(TDengine Enterprise only) Incremental restoration of vnodes on tiered storage:<\/strong> In the event of a disk failure on a three-node cluster with tiered storage, the <code class=\"\" data-line=\"\">RESTORE DNODE<\/code> command will perform an incremental restoration from another node. In previous versions, it was necessary to perform a full restoration.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"gb-headline gb-headline-e48f4d8f gb-headline-text\">Compatibility<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You can deploy TDengine Enterprise 3.2.1.0 on mainstream Linux distributions, macOS, and Windows.<\/li>\n\n\n\n<li>You can deploy TDengine OSS Server 3.2.1.0 on mainstream Linux distributions and macOS.<\/li>\n\n\n\n<li>You can deploy TDengine OSS Client 3.2.1.0 on mainstream Linux distributions, macOS, and Windows. <\/li>\n<\/ul>\n\n\n\n<p>You can also run TDengine in Kubernetes or in Docker containers. See <a href=\"https:\/\/docs.tdengine.com\/tdengine-reference\/supported-platforms\/\">Supported Platforms<\/a> for details about the compatibility of TDengine 3.2.1.0 with various architectures and operating systems.<\/p>\n\n\n\n<p><strong>Note:<\/strong> You must upgrade existing clients to TDengine 3.2.1.0 before connecting to a TDengine 3.2.1.0 server.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-d46ee0ec gb-headline-text\">Upgrading to TDengine 3.2.1.0<\/h2>\n\n\n\n<h3 class=\"gb-headline gb-headline-a8c557d0 gb-headline-text\">Upgrading TDengine OSS<\/h3>\n\n\n\n<p>You can upgrade TDengine OSS to version 3.2.1.0 from version 3.0.1.5 or later.<\/p>\n\n\n\n<p>To upgrade TDengine OSS, first back up your deployment by making a copy of the TDengine directory. After verifying that your deployment has been backed up, install TDengine 3.2.1.0 as described in the <a href=\"https:\/\/docs.tdengine.com\/get-started\/\">official documentation<\/a>. It is not necessary to uninstall TDengine before upgrading.<\/p>\n\n\n\n<p><strong>Note:<\/strong> If you have deployed TDengine as a cluster, you must shut down and upgrade all nodes in the cluster to TDengine 3.2.1.0. Rolling upgrades are not supported in TDengine 3.2.1.0.<\/p>\n\n\n\n<h3 class=\"gb-headline gb-headline-59bc1217 gb-headline-text\">Upgrading TDengine Enterprise and TDengine Cloud<\/h3>\n\n\n\n<p>Contact your account representative for assistance in upgrading TDengine Enterprise or TDengine Cloud.<\/p>\n\n\n\n<p>You can check your current version of TDengine at any time by running the <code class=\"\" data-line=\"\">SELECT SERVER_VERSION();<\/code> command.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-3c4c8a0e gb-headline-text\">Resolved Issues<\/h2>\n\n\n\n<p>For a full list of issues resolved in this release, see <a href=\"https:\/\/github.com\/taosdata\/TDengine\/releases\/tag\/ver-3.2.1.0\" rel=\"noopener\">our GitHub repository<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This article contains the release notes for TDengine 3.2.1.0.<\/p>\n","protected":false},"author":102,"featured_media":19422,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[22],"tags":[],"ppma_author":[181],"class_list":["post-19008","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"authors":[{"term_id":181,"user_id":102,"is_guest":0,"slug":"tdengine-team","display_name":"TDengine Team","avatar_url":{"url":"https:\/\/tdengine.com\/wp-content\/uploads\/29.03-01-tdengine.png","url2x":"https:\/\/tdengine.com\/wp-content\/uploads\/29.03-01-tdengine.png"},"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/posts\/19008","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/users\/102"}],"replies":[{"embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/comments?post=19008"}],"version-history":[{"count":13,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/posts\/19008\/revisions"}],"predecessor-version":[{"id":24704,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/posts\/19008\/revisions\/24704"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/media\/19422"}],"wp:attachment":[{"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/media?parent=19008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/categories?post=19008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/tags?post=19008"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/ppma_author?post=19008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}