TDengine Release Notes

TDengine Team
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About TDengine

TDengine is a next generation data historian 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.

What’s New

  • Improved query performance: Performance has been improved for queries that include a PARTITION BY clause whose target is a column.
  • Lossy compression option for floating-point values: You can specify lossy compression for floating-point data, which improves write performance as well as compression ratios. FSE and Huffman encoding are both available for this compression method.
  • (TDengine Enterprise only) User-based IP whitelisting: You can restrict specific users from logging in to TDengine outside of specified IP addresses or address ranges. For more information, see the TDengine Enterprise documentation.
  • (TDengine Enterprise only) Support for S3 storage: You can use S3 storage as a low-cost solution for historical data in a tiered storage scenario. For more information, see the TDengine Enterprise documentation.


  • You can deploy TDengine Enterprise on mainstream Linux distributions, macOS, and Windows.
  • You can deploy TDengine OSS Server on mainstream Linux distributions and macOS.
  • You can deploy TDengine OSS Client on mainstream Linux distributions, macOS, and Windows.

You can also run TDengine in Kubernetes or in Docker containers. See Supported Platforms for details about the compatibility of TDengine with various architectures and operating systems.

Note: You must upgrade existing clients to TDengine before connecting to a TDengine server.

Upgrading to TDengine

Upgrading TDengine OSS

You can upgrade TDengine OSS to version from version or later.

IMPORTANT: If you upgrade to TDengine from any version prior to TDengine, you cannot roll back to the previous version. Upgrading to will alter your data such that it cannot be read by versions prior to

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 as described in the official documentation. It is not necessary to uninstall TDengine before upgrading.

Note: If you have deployed TDengine as a cluster, you must shut down and upgrade all nodes in the cluster to TDengine Rolling upgrades are not supported in TDengine

Upgrading TDengine Enterprise and TDengine Cloud

Contact your account representative for assistance in upgrading TDengine Enterprise or TDengine Cloud.

You can check your current version of TDengine at any time by running the SELECT SERVER_VERSION(); command.

Resolved Issues

For a full list of issues resolved in this release, see our GitHub repository.