Weaviate 1.38 Release | Weaviate
Jun 25, 2026

Summary
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.