milvus-io/milvus v2.6.13

milvus-2.6.13

on GitHub

v2.6.13

Release date: March 23, 2026

Features

Gemini embedding model support (#48223)

Added Google Gemini as a built-in text embedding function. Users can now use Gemini embedding models directly in Milvus by configuring a Gemini API key, including the recently released Gemini Embedding 2.

For detailed usage, refer to Google Gemini.

Improvements

• Unified KV path/key conventions across etcd, tikv, and catalog layers with consistent path joining (#48133)
• Added query metrics for JSON-related filter expressions to improve observability of JSON field query performance (#48147)
• Reduced transient memory allocations in BM25Stats deserialization by eliminating temporary slices (#48178)
• Added TruncateCollection method to the Go SDK client for clearing all data in a collection without dropping it (#48361)

Bug fixes

• Fixed an issue where search/query requests with strong consistency timed out during compaction due to tsafe advancement being blocked (#47987)
• Fixed an issue where partial upsert with dynamic fields failed with the length of valid_data of field($meta) is wrong when the batch contained both existing and new rows (#48085)
• Fixed TLS connection failures during internal proxy-to-proxy request forwarding (#48226)
• Fixed query failures when using IN combined with != filter expressions that form tautologies (#48261)
• Fixed high system load caused by mass concurrent client disconnections during HTTP request handling (#48270)
• Fixed an issue where queries could become unavailable during replica scale-up/down due to non-deterministic node-to-replica assignment (#48277)
• Fixed HTTP proxy crashes caused by concurrent write race condition in timeout middleware (#48296, #48317, #48356)
• Fixed potential query node crash caused by assertion failure in delete record snapshot handling (#48302)
• Fixed storage operation failures when using AK/SK authentication on Aliyun OSS (#48311)
• Fixed degraded search performance caused by permanent parameter cache failure leading to goroutine contention on proxy hot paths (#48313, #48326)
• Fixed QueryCoord deadlock during upgrades when hundreds of channels needed rebalancing by splitting the executor into separate channel and non-channel task pools (#48351)
• Fixed an issue where search requests could timeout for 14+ minutes after WAL ownership changes due to unbounded message replay during scanner catchup (#48391)