milvus-io/milvus v2.5.8

milvus-2.5.8

on GitHub

v2.5.8

Release date: April 1, 2025

We’re excited to announce the release of Milvus 2.5.8, featuring enhancements to JSON expressions, UTF-8 validation, memory usage, and balancing logic. This version also includes multiple important bug fixes to improve concurrency and data handling. We encourage you to upgrade or give it a try, and as always, your feedback helps us continually refine Milvus!

Improvements

• Support JSON null/exists expressions (#41002)
• Balance the collection with the largest row count first (#40958)
• Support parsing sparse vectors from Parquet structs in bulk inserts (#40874)
• Support UTF-8 string validation during import (#40746)
• Add UTF-8 validation for all VARCHAR fields (#40993)
• Avoid re-query if hybrid search only requests the PK as output field (#40906)
• Refine array views to optimize memory usage (#40206)
• Add a trigger interval configuration for auto-balancing (#39918)
• Convert multiple OR expressions to IN expression (#40751)
• Support detailed manual compaction criteria (#40924)
• Retain raw tokens for audit logging (#40867)
• Optimize DataCoord meta mutex usage (#40753)
• Introduce batch subscriptions in MsgDispatcher (#40596)

Bug fixes

• Fixed a crash involving nullable input and growing mmap data types (#40980)
• Fixed potential data loss in delete operations caused by duplicate binlog IDs (#40985), (#40976)
• Added field index locks for GetSegmentsIndexStates to avoid potential panic when insertion while creating collection (#40969)
• Fixed concurrency issues in Rocksmq consumer registration (#40885)
• Retrieve all child delta logs for segment loading (#40957)
• Fixed wrong results caused by using JSON index when iterative_filter is specified (#40946)
• Ensured higher priority for the exists operation (#40865)
• Corrected WithGroupSize while reducing (#40920)
• Increased the number of slots proportionally as segment size grows (#40862)
• Set task queue time before enqueue (#40853)
• Fixed channel imbalance on DataNodes (#40854)
• Set correct default configurations for task slots (#40821)
• Go SDK: Set nullable flags according to FieldSchema for row-based insert (#40962)