iotdb v1.3.6

Features & Improvements

• Data Query: Optimized query performance for multiple scenarios, including the multi-series Last query.
• Data Query: Added the FastLastQuery interface to the Java SDK, supporting more efficient Last query operations.
• Data Query: Adjusted the tree-model fetchSchema to return data in segmented streaming mode, improving response speed in large-data-volume scenarios.
• Storage Management: Optimized memory management to avoid memory leak risks and ensure long-term stable system operation.
• Storage Management: Optimized the file compaction mechanism to enhance compaction efficiency and reduce system storage resource consumption.
• Data Synchronization: Optimized Pipe SQL parameter configurations to support specifying asynchronous loading methods.
• Data Synchronization: Added a syntactic sugar feature that automatically splits full-volume Pipe creation SQL into real-time synchronization and historical synchronization.
• System Management: Added a global configuration item for data type compression methods, supporting on-demand adjustment of storage compression strategies.
• Others: Fixed security vulnerabilities CVE-2025-12183, CVE-2025-66566 and CVE-2025-11226.
• …

Bugs

• Fixed the issue where selecting discontinuous sequence files for the settle task from the sequence zone under device-level TTL would trigger an overlap error during execution.
• Fixed the issue where running the pattern_match custom function in tree-model SQL (3C3D deployment) would throw an error indicating “tsDataType” is null.
• Fixed the issue where TTL would continuously write data into the modification cache in fast compaction mode, resulting in slow compaction speed.
• Fixed the stack overflow issue that occurred when performing value filter queries with a large number of devices without adding the align by device clause.
• Fixed the issue where loading TsFiles with empty value chunks across time partitions would generate TsFiles with misaligned chunks.
• Fixed the incorrect processing logic of TransformOperator for empty TsBlocks.
• Fixed the issue where the number of server connections would keep increasing when using a user without MAINTAIN permission in a Session.
• Fixed the issue where Load would ignore mods import under certain special circumstances (e.g., mismatched aligned types or inconsistent table schemas).
• Fixed the issue where data that had been deleted would be resynchronized to the receiver if mod files existed when Pipe pattern was configured.
• Fixed the issue where info logs related to TTL checks would still be printed during compaction scheduling even when TTL was not configured.
• …

Full Changelog: https://github.com/apache/iotdb/compare/v1.3.5…v1.3.6

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Source apache/iotdb · v1.3.6 · 2026-01-07 · upstream release

Mirrored verbatim for indexing. All rights belong to the upstream project.