Weaviate Release Notes
Weaviate 1.38 Release | Weaviate

Weaviate 1.38 Release | Weaviate

6/25/2026

What this post added

Introduces HFresh disk-based vector index (GA), MCP Server (GA), cluster-wide async replication (default), Boost API (Preview), and Nested Object Filtering (Preview). Also details performance improvements like production-ready replica movement, default vector index type setting, usage guardrails, and fractional BM25 property boosts.

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