{"id":20761,"date":"2024-05-06T21:37:51","date_gmt":"2024-05-07T04:37:51","guid":{"rendered":"https:\/\/tdengine.com\/?p=20761"},"modified":"2025-03-30T23:31:56","modified_gmt":"2025-03-31T06:31:56","slug":"tdengine-3-3-0-0-release-notes","status":"publish","type":"post","link":"https:\/\/tdengine.com\/tdengine-3-3-0-0-release-notes\/","title":{"rendered":"TDengine 3.3.0.0 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 next generation <a href=\"https:\/\/tdengine.com\/what-is-a-data-historian\/\">data historian<\/a> purpose-built for Industry 4.0 and Industrial IoT. It enables real-time data ingestion, storage, analysis, and distribution of petabytes per day, generated by billions of sensors and data collectors. With TDengine making big data affordable and accessible, 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>TDengine Explorer for OSS:<\/strong> TDengine OSS now includes the graphical user interface TDengine Explorer. This feature was previously restricted to TDengine Enterprise customers.<\/li>\n\n\n\n<li><strong>Time-range small materialized aggregates (TSMA):<\/strong> You can create TSMA objects to improve the performance of aggregate queries on large datasets. For more information, see <a href=\"https:\/\/docs.tdengine.com\/tdengine-reference\/sql-manual\/manage-tsmas\/\">Manage TSMAs<\/a>.<\/li>\n\n\n\n<li><strong>Configurable compression options:<\/strong> You can specify different encodings and compression methods for the columns in your databases. For more information, see <a href=\"https:\/\/docs.tdengine.com\/inside-tdengine\/data-compression\/\">Data Compression<\/a>.<\/li>\n\n\n\n<li><strong>(TDengine Enterprise only) MySQL and PostgreSQL connectors:<\/strong> You can integrate TDengine with MySQL and PostgreSQL data sources. This enables easy migration and replication of legacy time-series datasets in relational databases to TDengine.<\/li>\n\n\n\n<li><strong>(TDengine Enterprise only) Active-active deployment model:<\/strong> You can deploy a TDengine cluster consisting of two standalone deployments for high availability and business continuity.<\/li>\n\n\n\n<li><strong>(TDengine Enterprise only) Dual-replica deployment:<\/strong> You can configure a high-availability TDengine deployment to create two replicas in scenarios where resource conservation is required. In previous versions, three replicas were necessary.<\/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 3.3.0.0 on mainstream Linux distributions and Windows.<\/li>\n\n\n\n<li>You can deploy TDengine OSS Server 3.3.0.0 on mainstream Linux distributions and macOS.<\/li>\n\n\n\n<li>You can deploy TDengine OSS Client 3.3.0.0 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 3.3.0.0 with various architectures and operating systems.<\/p>\n\n\n\n<p><strong>Note:<\/strong> You must upgrade existing clients to TDengine 3.3.0.0 before connecting to a TDengine 3.3.0.0 server.<\/p>\n\n\n\n<h2 class=\"gb-headline gb-headline-d46ee0ec gb-headline-text\">Upgrading to TDengine 3.3.0.0<\/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 3.3.0.0 from version 3.0.1.5 or later.<\/p>\n\n\n\n<p><strong>IMPORTANT: Once you upgrade to TDengine 3.3.0.0, you cannot roll back to any previous version of TDengine. Upgrading to 3.3.0.0 will alter metadata such that it cannot be read by previous versions.<\/strong><\/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 3.3.0.0 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 3.3.0.0. Rolling upgrades are not supported in TDengine 3.3.0.0.<\/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-3.3.0.0\" rel=\"noopener\">our GitHub repository<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This article contains the release notes for TDengine 3.3.0.0.<\/p>\n","protected":false},"author":102,"featured_media":20764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[22],"tags":[],"ppma_author":[181],"class_list":["post-20761","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\/20761","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=20761"}],"version-history":[{"count":7,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/posts\/20761\/revisions"}],"predecessor-version":[{"id":24722,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/posts\/20761\/revisions\/24722"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/media\/20764"}],"wp:attachment":[{"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/media?parent=20761"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/categories?post=20761"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/tags?post=20761"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/tdengine.com\/wp-json\/wp\/v2\/ppma_author?post=20761"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}