The Apache IoTDB team is pleased to announce the release of Apache IoTDB 2.0.4.
Apache IoTDB (Database for Internet of Things) is an IoT native database with high performance for data management and analysis, deployable on the edge and the cloud. ## Features & Improvements - Data Query: Added user-defined table functions (UDTF) and various built-in table functions to the table model. - Data Query: Added support for ASOF INNER JOIN on time columns in the table model. - Data Query: Added the approximate aggregation function approx_count_distinct to the table model. - Stream Processing: Added support for asynchronous loading of TsFile through SQL. - System Management: Added support for disaster recovery load balancing strategy in replica selection during scaling down. - System Management: Adapted to Windows Server 2025. - Scripts and Tools: Categorized and organized script tools, and separated Windows-specific scripts. - ... ## Bugs - Fixed the memory leak issue in the WAL compression buffer. - Fixed the issue where the async connector gets stuck after running for a long time. - Fixed the issue where data subscription cannot be terminated after using data export scripts. - Fixed the issue where pipe restarts frequently due to insertnode and resource management memory problems under memory pressure. - Fixed the NPE issue triggered during memory statistics estimation on the data synchronization receiver end. - Fixed the error when configuring ConsumerConstant.NODE_URLS_KEY as a cluster address while using SubscriptionPullConsumer to consume data. - Fixed the deadlock issue on DN startup caused by concurrent agent pipe metadata fetching and CN metadata pushing. - ... The full release note is available at: https://dlcdn.apache.org/iotdb/2.0.4/RELEASE_NOTES.md The release is available for download at: http://iotdb.apache.org/Download Maven artifacts for JDBC driver, session SDK can be found at: https://search.maven.org/search?q=3Dg:org.apache.iotdb Pypi artifacts for Python SDK can be found at: https://pypi.org/project/apache-iotdb/ Regards, The Apache IoTDB team
